CN210378851U - User self-contained power supply anti-electric shock disconnecting link with dustproof cover - Google Patents
User self-contained power supply anti-electric shock disconnecting link with dustproof cover Download PDFInfo
- Publication number
- CN210378851U CN210378851U CN201921782592.1U CN201921782592U CN210378851U CN 210378851 U CN210378851 U CN 210378851U CN 201921782592 U CN201921782592 U CN 201921782592U CN 210378851 U CN210378851 U CN 210378851U
- Authority
- CN
- China
- Prior art keywords
- cover
- switch
- electric shock
- dust cover
- shielding
- 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
Links
Images
Landscapes
- Sawing (AREA)
Abstract
The utility model discloses a user self-contained power supply anti-electric shock switch with a dust cover, which comprises an insulating plate, a switch diaphragm arranged on the insulating plate, a switch arranged on the switch diaphragm and a dust cover; the dust cover comprises a telescopic and foldable middle cover and a pair of side baffles with the same structure; the middle cover is composed of two sub-covers with the same structure, each sub-cover comprises M shielding strips with arc-shaped cross sections, every two adjacent shielding strips are connected in a sliding mode, one side of each first shielding strip is fixedly installed on the insulating plate, one side, far away from the M-1 th shielding strip, of the Mth shielding strip is fixedly connected with the disconnecting link handle, and the first to Mth shielding strips contained in any one sub-cover are completely stretched to form the arched middle cover; the two side baffles are respectively arranged at the two ends of the blocking strip and are matched with the openings at the two sides of the arched middle cover. The utility model discloses set up the dust cover, improved the dustproof grade of protection against electric shock switch, further reduced the potential safety hazard, be applicable to the dustproof use of protection against electric shock switch.
Description
Technical Field
The utility model belongs to the technical field of power supply unit, a power switch is related to, specifically speaking is a take user of dust cover to possess power protection against electric shock switch certainly.
Background
In recent years, the country vigorously supports the popularization of green energy, a large number of photovoltaic power generation equipment are installed in rural and urban residents, and small-sized generators are generally installed in rural industrial and sideline households and industrial and mining enterprises for guaranteeing uninterrupted power supply. Photovoltaic power generation equipment and small-size generator all have the potential safety hazard of backward power transmission to the power supply line, threaten power line maintainer's personal safety.
In order to solve the problem of back power transmission, the inventor originally invented a nine-wire switch, namely, three wires at the upper part of a knife switch are connected with a power supply circuit, three wires at the lower part are connected with a generator, three wires at the middle part are connected with a load, and a zero wire is directly connected with the power supply circuit without being controlled by the knife switch. The nine-wire brake can ensure safety under general conditions, but can cause the zero line to be electrified when the load is uneven, and can reversely supply power to a power supply line when the phase line and the zero line are in wrong connection, thereby causing electric shock danger to workers who have power failure to overhaul the line.
Then, people invent a twelve-wire brake, so that the zero line and the phase line are completely synchronously switched on and off, and the personal safety of workers is further ensured
However, both the nine-wire gate and the twelve-wire gate have the problems of poor dust-proof effect and easy dust deposition, and potential safety hazards are formed over time.
Disclosure of Invention
The utility model aims at providing a take user of dust cover to possess power protection against electric shock switch certainly improves the dustproof grade of current protection against electric shock switch.
The utility model discloses a realize above-mentioned purpose, the technical scheme who adopts as follows:
a user self-contained power supply anti-electric shock knife switch with a dust cover comprises an insulating plate, a knife switch transverse plate arranged on the insulating plate, a knife switch arranged on the knife switch transverse plate, and the dust cover arranged on the insulating plate and covered outside the knife switch; the dust cover comprises a telescopic and foldable middle cover and a pair of side baffles with the same structure;
the middle cover is composed of two sub-covers with the same structure, each sub-cover comprises M shielding strips with arc-shaped cross sections, the Mth shielding strip is connected with the M-1 th shielding strip in a sliding mode, one side of the first shielding strip is fixedly arranged on the insulating plate, one side, far away from the M-1 th shielding strip, of the Mth shielding strip is fixedly connected with the knife switch handle, and the first cane sugar strip, the second cane sugar strip, the third cane sugar strip, the fourth cane sugar strip, the fifth cane sugar strip, the sixth;
the two side baffles are respectively arranged at two ends of the blocking strip and are matched with openings at two sides of the arched middle cover;
m is more than or equal to 2.
As a limitation: the dust cover is made of transparent acrylic.
As a second limitation: and the bottom parts of the two side baffles are provided with threading holes for the passing of load threads.
As a third limitation: the width of each shielding strip is the same, and the height difference of the insulating plate and the knife switch transverse plate is not exceeded.
The utility model discloses owing to adopted foretell technical scheme, it compares with prior art, and the technical progress who gains lies in:
(1) the utility model is provided with the dustproof cover, thereby improving the dustproof grade of the anti-electric shock disconnecting link and further reducing the potential safety hazard;
(2) the utility model is provided with two telescopic dust covers, and the dust-proof effect of the dust covers can not be influenced no matter which position the knife switch handle rotates to;
(3) the dust cover of the utility model is made transparent, which is convenient for observation and finding out the existing problems;
(4) the utility model discloses in the width of every sheltering from strip is no longer than the difference in height of insulation board and switch diaphragm to because of can't putting flat and cause switch and contact virtual contact when avoiding the switch handle to be pulled to arbitrary one side, avoided the potential safety hazard that probably causes.
The utility model is suitable for a dustproof use of protection against electric shock switch.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a partial structural schematic view of a sub-cover of the present invention after a shielding strip is completely unfolded;
fig. 2 is a partial schematic structural view of two covers moving together according to an embodiment of the present invention.
In the figure: 1. middle cover, 2, side shield, 3, shelter from strip, 4, switch handle, 5, through wires hole.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
Embodiment is a user-owned power supply anti-electric shock disconnecting link with dust cover
This embodiment includes the insulating board, installs the switch diaphragm on the insulating board and installs the switch on the switch diaphragm. As shown in fig. 1 and 2, the dust-proof cover is arranged on the insulating plate and covers the knife switch; the dust cover comprises a telescopically collapsible intermediate cover 1 and a pair of identically constructed side guards 2.
The middle cover 1 is composed of two sub-covers with the same structure, each sub-cover comprises M shielding strips 3 with the same width and arc-shaped cross sections, the Mth shielding strip 3 is connected with the M-1 th shielding strip 3 in a sliding mode, one side of the first shielding strip 3 is fixedly installed on an insulating plate, one side, far away from the M-1 th shielding strip 3, of the Mth shielding strip 3 is fixedly connected with a knife switch handle 4, and the first cane sugar strip, the Mth cane sugar strip and the Mth cane sugar strip contained in any one sub-cover form the arched middle cover 1 after being completely stretched; in this embodiment, M =8, and the value of M may be changed according to actual needs. The width of each shielding strip 3 is not more than the height difference value between the insulating plate and the transverse plate of the disconnecting link, so that the virtual contact between the disconnecting link and the contact caused by the fact that the disconnecting link cannot be flatly placed when the handle of the disconnecting link is pulled to any side is avoided.
Two side shield 2 divide and locate the both ends that shelter from strip 3, with the both sides opening looks adaptation of arched middle cover 1, the through wires hole 5 that is used for the load line to pass through is all offered to the bottom of two side shield 2.
In this embodiment, the dust cover is made of transparent acrylic.
When the device is used, the knife switch handle 4 is pulled to switch on, and the knife switch handle 4 drives the two M-th shielding strips 3 connected to move. As shown in fig. 1, which shows the state of one of the sub-shield strips 3 after being completely unfolded, it can be seen that the arched middle shield 1 formed by the eight sub-shield strips 3 after being completely unfolded forms a closed dust cover together with the two side shields 2. As shown in fig. 2, the knife switch handle 4 is rotated to an intermediate position, in which both sub-housings are in a semi-open position, and together with the two side guards 2, form a closed dust cover. In this embodiment, the dust-proof effect of the dust cover is not affected no matter where the knife switch handle 4 is rotated.
Claims (4)
1. The utility model provides a take user of dust cover to prepare power protection against electric shock switch, includes the insulation board, installs the switch diaphragm on the insulation board and installs the switch on the switch diaphragm, its characterized in that: the dust cover is arranged on the insulating plate and covers the knife switch; the dust cover comprises a telescopic and foldable middle cover and a pair of side baffles with the same structure;
the middle cover is composed of two sub-covers with the same structure, each sub-cover comprises M shielding strips with arc-shaped cross sections, the Mth shielding strip is connected with the M-1 th shielding strip in a sliding mode, one side of the first shielding strip is fixedly arranged on the insulating plate, one side, far away from the M-1 th shielding strip, of the Mth shielding strip is fixedly connected with the knife switch handle, and the first to Mth shielding strips contained in any one sub-cover are completely stretched to form an arched middle cover;
the two side baffles are respectively arranged at two ends of the blocking strip and are matched with openings at two sides of the arched middle cover;
m is more than or equal to 2.
2. The user-provided power supply anti-electric shock disconnecting link with the dust cover according to claim 1, characterized in that: the dust cover is made of transparent acrylic.
3. The user-provided self-contained power supply anti-electric shock disconnecting link with the dust cover as claimed in claim 1 or 2, wherein: and the bottom parts of the two side baffles are provided with threading holes for the passing of load threads.
4. The user-provided self-contained power supply anti-electric shock disconnecting link with the dust cover as claimed in claim 1 or 2, wherein: the width of each shielding strip is the same, and the height difference of the insulating plate and the knife switch transverse plate is not exceeded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921782592.1U CN210378851U (en) | 2019-10-23 | 2019-10-23 | User self-contained power supply anti-electric shock disconnecting link with dustproof cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921782592.1U CN210378851U (en) | 2019-10-23 | 2019-10-23 | User self-contained power supply anti-electric shock disconnecting link with dustproof cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210378851U true CN210378851U (en) | 2020-04-21 |
Family
ID=70256553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921782592.1U Expired - Fee Related CN210378851U (en) | 2019-10-23 | 2019-10-23 | User self-contained power supply anti-electric shock disconnecting link with dustproof cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210378851U (en) |
-
2019
- 2019-10-23 CN CN201921782592.1U patent/CN210378851U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210378851U (en) | User self-contained power supply anti-electric shock disconnecting link with dustproof cover | |
| CN204441733U (en) | A kind of low pressure power transformation operation safety guard | |
| CN207884086U (en) | A kind of movable low-pressure power distribution cabinet | |
| CN105261942A (en) | Lightning-proof outdoor power distribution cabinet | |
| CN211790357U (en) | Block terminal protector for high voltage power supply | |
| CN202103474U (en) | Dual-supply automatic transfer switch device | |
| CN209844557U (en) | Dynamic reactive and arc-extinguishing comprehensive compensation device | |
| CN208028552U (en) | A kind of electric power laying fixing device of sunkening cord | |
| CN211701328U (en) | High-voltage power pipe culvert in-situ protection structure | |
| CN206542074U (en) | A kind of high security high-voltage switch gear complete set of equipments cabinet door interlocking mechanism | |
| CN202059172U (en) | Arc suppression coil linkage adjusting system | |
| CN210838509U (en) | AC low voltage wire-out cabinet | |
| CN206558401U (en) | It is a kind of to prevent the assembled protector of residual current operated protective device automatic reclosing | |
| CN212486980U (en) | Side-opening type electrical control cabinet | |
| CN209860396U (en) | Sewage treatment electrical apparatus switch board of multipurpose | |
| CN205583319U (en) | Control cabinet of electrified mechanical responsiveness rail | |
| CN209462320U (en) | A kind of singlephase earth fault positioning auxiliary device | |
| CN217182717U (en) | Intelligent control device of switch cabinet | |
| CN214227435U (en) | Protective cover for switch cabinet and switch cabinet | |
| CN107819283A (en) | A kind of low voltage drawing-out switching carbinet | |
| CN202797961U (en) | Lightening protection device of grounding-free communication device with equipotential connection | |
| CN215771917U (en) | Electric shock prevention structure of alternating current low-voltage switch cabinet | |
| CN214100852U (en) | Arc suppression coil complete device | |
| CN210655675U (en) | Ground wire winding device for mounting power equipment | |
| CN203895834U (en) | Multifunctional high-voltage cable grounding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 Termination date: 20211023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |