CN209117792U - A kind of low-current ground fault line selection instrument - Google Patents
A kind of low-current ground fault line selection instrument Download PDFInfo
- Publication number
- CN209117792U CN209117792U CN201821833364.8U CN201821833364U CN209117792U CN 209117792 U CN209117792 U CN 209117792U CN 201821833364 U CN201821833364 U CN 201821833364U CN 209117792 U CN209117792 U CN 209117792U
- Authority
- CN
- China
- Prior art keywords
- mounting box
- compressor arm
- ground fault
- fixedly connected
- line selection
- 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.)
- Active
Links
Landscapes
- Locating Faults (AREA)
Abstract
The utility model discloses a kind of low-current ground fault line selection instrument, including mounting box, display is fixedly installed on the mounting box, single-chip microcontroller is equipped in the mounting box, the mounting box bottom side is equipped with battery pack, filter is additionally provided in the mounting box, the mounting box is fixedly connected by partition there are two support frame, sensitive galvanometer is placed on two support frames as described above, spring groove is offered on two support frames as described above, it is equipped with elastic hold-down mechanism in the spring groove, limit hole there are two symmetrically opening up is offered on two support frames as described above.The utility model is when carrying out replacement different size sensitive galvanometer, it only needs to pull gag lever post that magnetite and iron plate is made to remove limit hole while disengaging, compressor arm, which can be carried, makes it drive spring elongation, rotation compressor arm is until compressor arm no longer above face sensitive galvanometer at this time, so as to which sensitive galvanometer directly quickly to be removed to carry out quick-replaceable in the case where not by tool.
Description
Technical field
The utility model relates to circuit power detection technique field more particularly to a kind of low-current ground fault line selection instrument.
Background technique
80% or so of electric network fault is singlephase earth fault according to statistics.Under this failure, grid line voltage is still symmetrical,
Do not influence the power supply to electricity consumer, thus need not disjunction faulty circuit (regulation regulation can continue to run 1~2h) immediately, be conducive to
Improve the reliability of power supply.In singlephase earth fault, the voltage-to-ground of non-faulting phase increases low current neutral grounding electric network, interval electricity
Arc ground fault can also cause higher overvoltage, these constitute a threat to the weak link that insulate in power grid.
According to China Patent Publication No. are as follows: CN205941786U, a kind of low-current ground fault line selection instrument, including installation
Box, the mounting box inside bottom are provided with battery, and partition, and the inner wall of partition and mounting box are provided on the upside of the battery
Connection, the top of the partition is provided with four support columns, and the upside of support column is connect by screw with sensitive galvanometer, institute
It states partition and is provided with fastener on the inside of support column, and be provided with arc-suppressing controller on the inside of fastener, which first will be defeated
Exit port is connect by conducting wire with detected electric wire, is connected being grounded grounding ports by electric wire, is then turned on the switch,
The region for being fixed on some fixation of channel frequency can be prevented overtension, damage line selector by filter, and be disappeared
Arc controller is able to detect switching when ground fault occurs and adjusts the controller controlled, and the arrangement increases the correct of route selection
Rate reduces singlephase earth fault damage caused by equipment.
But wherein the design of sensitive galvanometer is fixed simply by simple fixed screw, but since detection is single
Position detection size of current is different, and use the specification need of sensitive galvanometer are different, if every time according to different detection electric currents into
When the sensitive galvanometer of row replacement different size, it is also necessary to dismantle multiple fixed screws, also need to reinstall after replacement, very
Inconvenience, and will lead to stripped thread phenomenon in the replacement that repeatedly counts of screw location hole, to lose fixed effect.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, such as: wherein sensitive galvanometer is set
Meter is fixed simply by simple fixed screw, but since detection unit detection size of current is different, sensitive galvanometer
Use specification need it is different, if every time according to it is different detection electric currents carry out replacement different size sensitive galvanometer when,
It also needs to dismantle multiple fixed screws, also needs to reinstall after replacement, be inconvenient, and screw location hole repeatedly counts more
It will lead to stripped thread phenomenon in changing, to lose fixed effect.
To achieve the goals above, the utility model adopts the technical scheme that a kind of low current of the utility model
Earth fault line selection instrument, including mounting box are fixedly installed with display on the mounting box, are equipped with monolithic in the mounting box
Machine, the mounting box bottom side are equipped with battery pack, are additionally provided with filter in the mounting box, the mounting box is fixed by partition
Connection is placed with sensitive galvanometer on two support frames as described above, offers bullet on two support frames as described above there are two support frame
Spring slot, the spring groove is interior to be equipped with elastic hold-down mechanism, and limit there are two symmetrically opening up is offered on two support frames as described above
Hole, two limit holes are located at spring groove two sides, are fixedly installed with arc-suppressing controller on the partition；The elasticity pressure
Tight mechanism includes spring, and the spring one end is fixedly connected with compressor arm, and the other end of the spring is fixedly connected with rotating member,
The rotating member is rotatably connected in support frame, and the compressor arm is equipped with position-limit mechanism.
Preferably, the position-limit mechanism includes gag lever post, and the gag lever post is arranged through compressor arm, and the gag lever post runs through
One end of compressor arm is fixedly connected with magnetite, and the iron plate to match with magnetite is fixedly connected in the limit hole.
Preferably, the mounting box bottom side offers sliding slot, and slide plate is slidably connected in the sliding slot, and the battery pack is solid
On slide plate, the side of the slide plate is fixedly connected with pull rod for Dingan County.
Preferably, the supporting surface of support frame as described above is equipped with cushion, offers form friction pattern on the cushion.
Preferably, support frame as described above is equipped with fin, and the fin and support frame are integrally formed.
Compared with prior art, the utility model has the beneficial effects that
1, when carrying out replacement different size sensitive galvanometer, it is only necessary to gag lever post be pulled to make magnetite and iron plate de-
From while remove limit hole, so as to carry compressor arm make its drive spring elongation, until no longer to sensitive galvanometer into
Row compresses, and rotates compressor arm at this time and under the connection function of spring rotating member is started turning, until compressor arm no longer face
Above sensitive galvanometer, so as to which sensitive galvanometer quickly directly to be removed to progress quickly more in the case where not by tool
It changes, compressor arm need to will be only rotated after replacement and is against on sensitive galvanometer again under the elastic force effect of spring, is fixed conveniently；
2, when by the design of slide plate so that the later period overhauling battery pack, it is only necessary to pull pull rod directly by slide plate from
It is pulled out in sliding slot, so as to directly pull out entire battery pack, convenient for battery maintenance, the replacement of battery pack.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of low-current ground fault line selection instrument positive structure schematic；
Fig. 2 is the enlarged diagram in Fig. 1 at A.
In figure: 1 mounting box, 2 displays, 3 single-chip microcontrollers, 4 filters, 5 support frames, 6 battery packs, 7 slide plates, 8 pull rods, 9 disappear
Arc controller, 10 cushions, 11 limit holes, 12 iron plates, 13 spring grooves, 14 springs, 15 rotating members, 16 compressor arms, 17 gag lever posts, 18
Magnetite, 19 sensitive galvanometers.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
As shown in Figs. 1-2, a kind of low-current ground fault line selection instrument of the utility model, including mounting box 1, mounting box 1
On be fixedly installed with display 2, single-chip microcontroller 3 is equipped in mounting box 1,1 bottom side of mounting box is equipped with battery pack 6, and 1 bottom side of mounting box is opened
Equipped with sliding slot, slide plate 7 is slidably connected in sliding slot, battery pack 6 is fixedly mounted on slide plate 7, and the side of slide plate 7 is fixedly connected with
Pull rod 8, when by the design of slide plate 7 so that the later period overhauls battery pack 6, it is only necessary to pull pull rod 8 directly by slide plate 7 from
It is pulled out in sliding slot, so as to directly pull out entire battery pack 6, convenient for battery maintenance, the replacement of battery pack 6.
It is additionally provided with filter 4 in mounting box 1, mounting box 1 is fixedly connected with that there are two support frame 5, two branch by partition
Sensitive galvanometer 19 is placed on support 5, support frame 5 is equipped with fin, and fin and support frame 5 are integrally formed, increase by fin
Adding the range of 5 supporting surface of support frame, the supporting surface of support frame 5 is equipped with cushion 10, offer form friction pattern on cushion 10, and cushion
10 can allow sensitive galvanometer 19 to put up more steadily, play certain cushioning effect, offer spring on two support frames 5
Slot 13, spring groove 13 is interior to be equipped with elastic hold-down mechanism, and elastic hold-down mechanism includes spring 14, and 14 one end of spring is fixedly connected with pressure
Tight bar 16, the other end of spring 14 are fixedly connected with rotating member 15, and rotating member 15 is rotatably connected in support frame 5, compressor arm 16
It is equipped with position-limit mechanism.
Spring 14 is in elongation state in Fig. 2, and when compressor arm 16 is not limited down, can carry compressor arm 16 makes its band
Spring 14 of moving continues to extend, to no longer compress to sensitive galvanometer 19, rotates compressor arm 16 at this time in the company of spring 14
It connects under effect so that rotating member 15 starts turning, up to no longer 19 top of face sensitive galvanometer of compressor arm 16, so as to not
Sensitive galvanometer 19 is quickly directly removed into carry out quick-replaceable in the case where by tool, position-limit mechanism includes gag lever post 17,
Gag lever post 17 is arranged through compressor arm 16, and gag lever post 17 is fixedly connected with magnetite 18, limit hole 11 through one end of compressor arm 16
Inside be fixedly connected with the iron plate 12 to match with magnetite 18, by by gag lever post 17 be inserted into limit hole 11 in so that magnetite 18 with
Iron plate 12 is adsorbed, to complete to fix, is further limited to compressor arm 16, its rotation, two support frames 5 are prevented
On offer and symmetrically open up there are two limit hole 11, two limit holes 11 are located at 13 two sides of spring groove, fixed on partition
Arc-suppressing controller 9 is installed.
In the utility model, when user uses the device, when carrying out replacement different size sensitive galvanometer 19,
It only needs to pull gag lever post 17 that magnetite 18 and iron plate is made to remove limit hole 11 while disengaging, so as to carry compressor arm 16
Make it that spring 14 be driven to extend, until no longer compressing to sensitive galvanometer 19, rotates compressor arm 16 at this time in spring 14
Rotating member 15 is started turning, until no longer 19 top of face sensitive galvanometer of compressor arm 16, so as to
Sensitive galvanometer 19 is quickly directly removed into carry out quick-replaceable in the case where not by tool, rotation need to only be compressed after replacement
Bar 16 is against on sensitive galvanometer 19 again under the elastic force effect of spring 14, is fixed conveniently, is made by the design of slide plate 7
When must be overhauled to battery pack 6 in the later period, it is only necessary to pull pull rod 8 directly to pull out slide plate 7 out of sliding slot, so as to straight
It connects and pulls out entire battery pack 6, convenient for battery maintenance, the replacement of battery pack 6.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of low-current ground fault line selection instrument, including mounting box (1), which is characterized in that fixed peace on the mounting box (1)
Equipped with display (2), single-chip microcontroller (3) are equipped in the mounting box (1), mounting box (1) bottom side is equipped with battery pack (6), institute
It states and is additionally provided with filter (4) in mounting box (1), the mounting box (1) is fixedly connected by partition there are two support frame (5),
It is placed with sensitive galvanometer (19) on two support frames as described above (5), offers spring groove on two support frames as described above (5)
(13), it is equipped with elastic hold-down mechanism in the spring groove (13), is offered on two support frames as described above (5) and symmetrically offers two
A limit hole (11), two limit holes (11) are located at spring groove (13) two sides, are fixedly installed with and disappear on the partition
Arc controller (9)；The elastic hold-down mechanism includes spring (14), and described spring (14) one end is fixedly connected with compressor arm
(16), the other end of the spring (14) is fixedly connected with rotating member (15), and the rotating member (15) is rotatably connected on support frame
(5) in, the compressor arm (16) is equipped with position-limit mechanism.
2. a kind of low-current ground fault line selection instrument according to claim 1, which is characterized in that the position-limit mechanism includes
Gag lever post (17), the gag lever post (17) are arranged through compressor arm (16), and the gag lever post (17) runs through the one of compressor arm (16)
End is fixedly connected with magnetite (18), and the iron plate (12) to match with magnetite (18) is fixedly connected in the limit hole (11).
3. a kind of low-current ground fault line selection instrument according to claim 1, which is characterized in that mounting box (1) bottom
Side offers sliding slot, slidably connects in the sliding slot slide plate (7), and the battery pack (6) is fixedly mounted on slide plate (7), institute
The side for stating slide plate (7) is fixedly connected with pull rod (8).
4. a kind of low-current ground fault line selection instrument according to claim 1, which is characterized in that support frame as described above (5)
Supporting surface is equipped with cushion (10), offers form friction pattern on the cushion (10).
5. a kind of low-current ground fault line selection instrument according to claim 1, which is characterized in that on support frame as described above (5)
Equipped with fin, the fin and support frame (5) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833364.8U CN209117792U (en) | 2018-11-08 | 2018-11-08 | A kind of low-current ground fault line selection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833364.8U CN209117792U (en) | 2018-11-08 | 2018-11-08 | A kind of low-current ground fault line selection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209117792U true CN209117792U (en) | 2019-07-16 |
Family
ID=67204182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821833364.8U Active CN209117792U (en) | 2018-11-08 | 2018-11-08 | A kind of low-current ground fault line selection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209117792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850321A (en) * | 2019-11-19 | 2020-02-28 | 上海福宇龙汽车科技有限公司 | Intelligent key battery life detection device and method |
-
2018
- 2018-11-08 CN CN201821833364.8U patent/CN209117792U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850321A (en) * | 2019-11-19 | 2020-02-28 | 上海福宇龙汽车科技有限公司 | Intelligent key battery life detection device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209117792U (en) | A kind of low-current ground fault line selection instrument | |
| CN113644555A (en) | Intelligent compensation high-voltage complete switch equipment with high-grade protection function | |
| CN108054056A (en) | A kind of breaker for facilitating installation | |
| CN208939571U (en) | A kind of SPD Surge Protector | |
| CN209024073U (en) | A kind of off-shored crane fault monitoring device | |
| CN202333586U (en) | Switch cabinet bus grounding device | |
| CN210926786U (en) | Automatically controlled cabinet of heat dissipation low pressure of anti-overturning device structure | |
| CN208111344U (en) | A kind of indoor high-voltage vacuum circuit breaker mounting bracket for being easily installed and dismantling | |
| CN209486195U (en) | A kind of nuclear phase assisting device of high-tension switch cabinet | |
| CN203339508U (en) | Emergency disconnection device for switchgear | |
| CN202712735U (en) | Insulation-enclosed plug-pull switchgear | |
| CN102044389A (en) | Plastic-shell circuit breaker with switching-off and switching-on indicating mechanism | |
| CN202103354U (en) | Handcart-type permanent magnet combination open circuit device | |
| CN112103782B (en) | High-low voltage power distribution cabinet with safety protection function | |
| CN209472396U (en) | A kind of overall power distribution monitoring idle compensating control | |
| CN208284066U (en) | A kind of electric disaster hidden-trouble supervision warning device | |
| CN207782216U (en) | A kind of transmission of electricity case facilitating wiring | |
| CN208061986U (en) | Structure for mounting circuit breaker | |
| CN206947268U (en) | Drawout breaker | |
| CN216645840U (en) | Long-acting contactor iron core service life test bench | |
| CN220796505U (en) | Breaker mechanism of inflatable cabinet | |
| CN214013672U (en) | Circuit breaker in low-voltage drawer type switch cabinet | |
| CN213027093U (en) | Wall-hanging intelligent power distribution terminal | |
| CN219394405U (en) | Protective cover for preventing misoperation of relay protection pressing plate | |
| CN220874068U (en) | Low-voltage draw-out type switch equipment convenient to disassemble |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |