CN207663001U - A kind of protective device - Google Patents
A kind of protective device Download PDFInfo
- Publication number
- CN207663001U CN207663001U CN201721887150.4U CN201721887150U CN207663001U CN 207663001 U CN207663001 U CN 207663001U CN 201721887150 U CN201721887150 U CN 201721887150U CN 207663001 U CN207663001 U CN 207663001U
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- earth brace
- hook
- dodge gate
- guardrail
- protective device
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Abstract
This application discloses a kind of protective devices, are used for guaranteeing high-voltage test device, including：Earth brace；Guardrail is provided with the dodge gate passed in and out for personnel on guardrail；It is arranged on guardrail, the gate interlock of control dodge gate opening and closing, and gate interlock can control the break-make of the charging circuit of high-pressure test device；It is arranged on guardrail, the hook for hanging earth brace, is articulated to the earth brace on hook across dodge gate, to stop that personnel pass in and out from dodge gate, and earth brace is contacting and separating with what is linked up with, can control switching on and off for charging circuit.Protective device provided by the utility model, by enabling earth brace be crossed on dodge gate, and switching circuit is set for earth brace, it is a significant increase the protection effect to high-pressure test device, prevent to neglect the major safety risks for leading to not mount earth brace and bringing because of testing crew, the incidence of the such risk in high-voltage test field can be substantially reduced.
Description
Technical field
The utility model is related to high-potting fields, more particularly to are filled with a kind of protection of high-pressure test device cooperating
It sets.
Background technology
During high-voltage test, it may be led due to defective insulation, imperfect earth, electrostatic induction, electric discharge residual voltage etc.
Cause testing crew gets shocked or electricity wound, and death can be caused when serious.Especially surge voltage, dash current analoglike are struck by lightning
Experiment, surge voltage is as unit of 10kV, and dash current is as unit of 10kA, and equipment residual voltage can reach thousands of when imperfect earth
Volt, seriously threatens the personal safety of testing crew.So in order to provide protection to testing crew, high-pressure test device is generally adopted
It is isolated with guardrail, and is provided with the dodge gate for making testing crew pass in and out on guardrail, gate interlock is added on this dodge gate,
And gate interlock is linked into the charging circuit of high-pressure test device, when gate interlock unlock, dodge gate are opened, charging circuit
It disconnecting, high-pressure test device is stopped, when dodge gate is closed, gate interlock is sealed, charging circuit conducting, high-pressure test device
It could start to work.
Also, in order to further decrease security risk, earth brace is also equipped in test site, this earth brace includes insulation
Operating lever, ground wire, ground terminal and conductive hook, and ground terminal is connect with ground strap, ground wire connection ground terminal
Son and conductive hook.When testing crew needs to operate high-pressure test device, enters in guardrail and hand-held insulating bar will be led
Electric hook is articulated on the high-field electrode of high-pressure test device, to be further ensured that the ground connection of high-pressure test device, is completed in operation
Afterwards, before charging again to high-pressure test device, testing crew again hold insulating bar by conductive hook from high-field electrode
It removes, is grounded to avoid high-pressure test device, testing crew is exited to except guardrail later, and gate interlock is sealed, is then started pair
High-potting dress charging.
In the prior art, it is typically provided with holder in the test site in guardrail, is taken from high-field electrode by conductive hook
After lower, need testing crew earth brace is placed on holder (since there is no strict requirements for the storage to earth brace, so
Even there is the case where directly placing earth brace on the ground), then testing crew is exited to except guardrail again, is needed later
When being operated again to high-pressure test device, testing crew enters in guardrail, then picks up earth brace from holder or ground
And it is suspended on high-field electrode.This double protection mode using gate interlock and earth brace is still deposited although seeming safety
In larger security risk：During experiment, testing crew needs frequently repeat to operate high-pressure test device, inevitably go out
The case where now forgetting that earth brace is articulated on high-field electrode and directly removes operation high-pressure test device, once high-pressure test device
In residual voltage it is higher, will occur electric shock lead to casualty accident.
Utility model content
In view of this, the utility model provides a kind of novel protective device, can avoid testing crew forget by
Earth brace is articulated to the situation on high-field electrode, and casualty accident is enabled no longer to occur, and significantly improves protection effect.
In order to achieve the above object, the utility model provides the following technical solutions：
A kind of protective device is used for guaranteeing high-voltage test device, including：
Earth brace；
Guardrail is provided with the dodge gate passed in and out for personnel on the guardrail；
It is arranged on the guardrail, controls the gate interlock of the dodge gate opening and closing, and the gate interlock can control institute
State the break-make of the charging circuit of high-pressure test device；
It is arranged on the guardrail, the hook for hanging the earth brace, the ground connection being articulated on the hook
Bar is across the dodge gate, to stop that personnel pass in and out from the dodge gate, and the contact of the earth brace and the hook
And separation, switching on and off for the charging circuit can be controlled.
Preferably, in above-mentioned protective device, the hook is two, and is respectively distributed to the left side and the right side of the dodge gate
Side.
Preferably, in above-mentioned protective device, two hooks are arranged in same level, and between ground
Distance is 1m~1.3m.
Preferably, in above-mentioned protective device, the hook is one, and is arranged on the right side of the dodge gate.
Preferably, in above-mentioned protective device, the hook is two, and is respectively distributed to the upside of the dodge gate under
Side.
Preferably, in above-mentioned protective device, it is provided with linked switch in the charging circuit, when the earth brace is hanging to
When on the hook, the conductive hook of the earth brace contacts with the movable contact spring of the linked switch and the movable contact spring is driven to move
It is dynamic, to realize the closure of the linked switch.
Protective device provided by the utility model is provided with the hook for hanging earth brace on guardrail, works as earth brace
After being hanging on guardrail, earth brace is across dodge gate, to form blocking to the testing crew for passing in and out dodge gate, as experiment people
Member needs to enter when being operated to high-pressure test device in guardrail, it is necessary to which removing earth brace from hook could enter
Into guardrail, testing crew is enabled first to pick up earth brace before touching high-pressure test device, forgotten so as to avoid testing crew
Earth brace is articulated to the situation on high-field electrode to occur, meanwhile, the mode automatically controlled is additionally used, i.e., by the behaviour of earth brace
Make by be arranged switching circuit (this switching circuit is the partial circuit for being directed to earth brace and its installation position and adding, it is possible to understand that
For a part for charging circuit) mode seal in charging circuit, switching circuit disconnects automatically when removing earth brace from hook,
Hang earth brace when switching circuit be closed automatically, do not remove earth brace and be then not easily accessible in guardrail, do not mount earth brace then without
Charging circuit is connected in method, fundamentally avoids testing crew and forgets to mount the high pressure Danger Electric shock risk that earth brace is brought.This practicality
Switching circuit is arranged by enabling earth brace be crossed on dodge gate, and for earth brace, significantly in the protective device of novel offer
Increase the protection effect to high-pressure test device, prevented because testing crew carelessness cause not mount earth brace bring it is great
Security risk can substantially reduce the incidence of the such risk in high-voltage test field.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is that the protective device that the utility model embodiment provides hangs on the structural schematic diagram on hook in earth brace；
Fig. 2 is structural schematic diagram of the protective device when earth brace is removed from hook.
In fig. 1 and 2：
1- high-pressure test devices, 2- earth braces, 3- guardrails, 4- dodge gates, 5- gate interlocks, 6- hooks, 7- conductive hooks, 8- connection
Dynamic switch, 9- charging circuits, 10- switching circuits.
Specific implementation mode
The utility model provides a kind of novel protective device, and testing crew can be avoided to forget to mount earth brace
Situation on to high-field electrode, enables casualty accident no longer occur, and significantly improves protection effect.
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.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, the protective device that the utility model embodiment provides, for being carried out to high-pressure test device 1
Protection, avoids testing crew from getting shocked, includes mainly：Earth brace 2, guardrail 3, dodge gate 4, gate interlock 5 and hook 6.Its
In, earth brace 2 is existing earth brace 2, and dodge gate 4 is arranged on guardrail 3, and testing crew can pass through the activity when unlatching
Door 4 enters in test site guardrail 3 inside, it, which together forms high-pressure test device 1 with guardrail 3, when closure is isolated, and
The gate interlock 5 with 4 cooperating of dodge gate is additionally provided on guardrail 3, this gate interlock 5 can lock dodge gate 4, while by the couplet on the door
Lock 5 is linked into the charging circuit 9 of high-pressure test device 1, and can control the break-make of charging circuit 9, i.e., the gate interlock 5 is suitable
In a switch being arranged in charging circuit 9, the unlock of gate interlock 5 can not only realize the opening and energy of dodge gate 4
Enough realize the disconnection of charging circuit 9, and gate interlock 5 is sealed, then the locking of dodge gate 4 not only may be implemented but also can realize charging electricity
The conducting on road 9；The hook 6 being arranged on guardrail 3 for hanging earth brace 2, and link up with 6 be preferably provided with it is multiple, and respectively
Positioned at the both sides of dodge gate 4, after earth brace 2 is suspended on hook 6, earth brace 2 is across dodge gate 4, when being opened to dodge gate 4
The channel of formation stopped, enables testing crew could be by that must remove from hook 6 earth brace 2 when the dodge gate 4
Enter into test site so that testing crew first picks up earth brace 2, avoid testing crew before touching high-pressure test device 1
Forget operational grounding bar 2；Herein on basis, the also further fit system for being directed to earth brace 2 and earth brace 2 and hook 6,
Provided with switching circuit 10 (this switching circuit 10 can be understood as the extension of charging circuit 9), when earth brace 2 is in hook 6
After upper suspension in place, switching circuit 10 could be enabled to be connected, and then charging circuit 9 is enabled to be connected, high-pressure test device 1 could normal work
Make, when earth brace 2 is not hanging on hook 6, then switching circuit 10 is off, and causes charging circuit 9 that can not be connected,
High-pressure test device 1 can not work normally.In above-mentioned circuit structure, charging circuit 9 and switching circuit 10 are series relationship,
And gate interlock 5 is located in charging circuit 9, any one opening all will be switched off charging circuit in gate interlock 5 and switching circuit 10
9, charging circuit 9 is just can turn on when being only closed to enable high-pressure test device 1 work normally.
In order to advanced optimize technical solution, in protective device provided in this embodiment, it is two preferably to link up with 6, and point
Be not distributed in the left and right side of dodge gate 4, this left and right side refers to the both sides in 4 horizontal direction of dodge gate, such as Fig. 1 and
Shown in Fig. 2.Such set-up mode enables to earth brace 2 after being hanging on hook 6 across on dodge gate 4, to activity
Realize transverse barriers in the channel that door 4 is formed when opening.
In addition, the hook 6 being arranged on guardrail 3 or one, are located at the right side in 4 horizontal direction of dodge gate, connect
When one end of the thin end of the scroll 2 is by this 6 support of hook, the other end for being provided with conductive hook 7 then can be by being arranged in switching circuit 10
Linked switch 8 (being mentioned in subsequent content) realize support, and make linked switch 8 be closed.Certainly, it is hung to further increase
Effect, the setting quantity for linking up with 6 may be it is more than two more.
More preferred, enable the setting height of two hooks 6 identical, even two hooks 6 are arranged in same level,
It is horizontally suspended so that earth brace 2 can be realized.
On the basis of linking up with 6 at horizontally disposed two, the setting height h of the present embodiment further preferably earth brace 2 is
1m~1.3m, as shown in Figure 1.In the present embodiment preferably, the suspension height of earth brace 2 should be unfavorable for adult from earth brace 2
Side across and be unfavorable for drill-through from the lower section of earth brace 2, it is 1m~1.3m that height h, which is arranged, it is advantageous to it.When hook 6 is set as one
When a, setting height is it is also preferred that numberical range thus.
In addition, two be arranged on guardrail 3 are linked up with 6 other than horizontally disposed, it can also be along other directions
Setting, such as be vertically arranged, even two hooks 6 are respectively distributed to the upper side and lower side (such setting side of dodge gate 4
Formula is not shown in figure), to enable earth brace 2 is vertical to stand in the channel formed when dodge gate 4 is opened, with to testing crew reality
Now stop.
Specifically, earth brace 2 is hanging to the concrete structure and process for realizing that charging circuit 9 is connected on hook 6, preferably fill
It is provided with linked switch 8 in circuit 9 (being more specifically switching circuit 10), when earth brace 2 is hanging on hook 6, ground connection
The conductive hook 7 of bar 2 contacts with the movable contact spring of linked switch 8 and movable contact spring is driven to move, to realize the closure of linked switch 8.More
Particularly, during being placed into hook 6, its conductive hook 7 contacts earth brace 2 with movable contact spring when earth brace 2 moves down, and leads to
The own wt for crossing earth brace 2 pushes movable contact spring, until movable contact spring is contacted with the static contact of underlying linked switch 8, from
And switching circuit 10 is enabled to be connected；When testing crew picks up earth brace 2, conductive hook 7 is disengaged with movable contact spring, movable contact spring bullet
It rises, switching circuit 10 disconnects.
In addition, the break-make of switching circuit 10 can also be realized by other means, for example, on switching circuit 10 with conductive hook 7
Corresponding position disconnects, and after earth brace 2 is hung in place, conductive hook 7 is moved to open position, and will be switched off by conductive hook 7
Circuit turn-on, at this time conductive hook 7 be switching circuit 10 partial circuit；When picking up earth brace 2, conductive hook 7 leaves circuit
Open position, switching circuit 10 is again off.
Each part is described by the way of progressive in this specification, what the structure of each part stressed is
With the difference of existing structure, the entirety and part-structure of protective device can be obtained by combining the structure of above-mentioned multiple portions
It arrives.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (6)
1. a kind of protective device is used for guaranteeing high-voltage test device, which is characterized in that including：
Earth brace；
Guardrail is provided with the dodge gate passed in and out for personnel on the guardrail；
It is arranged on the guardrail, controls the gate interlock of the dodge gate opening and closing, and the gate interlock can control the height
The break-make of the charging circuit of compression testing device；
Be arranged on the guardrail, the hook for hanging the earth brace, be articulated to the earth brace on the hook across
Cross the dodge gate, to stop that personnel pass in and out from the dodge gate, and the earth brace and the contact of the hook and point
From switching on and off for the charging circuit can be controlled.
2. protective device according to claim 1, which is characterized in that the hook is two, and is respectively distributed to described
The left and right side of dodge gate.
3. protective device according to claim 2, which is characterized in that two hooks are arranged in same level,
And the distance between ground is 1m~1.3m.
4. protective device according to claim 1, which is characterized in that the hook is one, and is arranged in the activity
The right side of door.
5. protective device according to claim 1, which is characterized in that the hook is two, and is respectively distributed to described
The upper side and lower side of dodge gate.
6. according to the protective device described in any one of claim 1-5, which is characterized in that be provided in the charging circuit
Linked switch, when the earth brace is hanging on the hook, the conductive hook of the earth brace is dynamic with the linked switch
Contact pad simultaneously drives the movable contact spring to move, to realize the closure of the linked switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721887150.4U CN207663001U (en) | 2017-12-28 | 2017-12-28 | A kind of protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721887150.4U CN207663001U (en) | 2017-12-28 | 2017-12-28 | A kind of protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207663001U true CN207663001U (en) | 2018-07-27 |
Family
ID=62944164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721887150.4U Active CN207663001U (en) | 2017-12-28 | 2017-12-28 | A kind of protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207663001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366817A (en) * | 2018-12-26 | 2020-07-03 | 合肥中车轨道交通车辆有限公司 | Protective device |
-
2017
- 2017-12-28 CN CN201721887150.4U patent/CN207663001U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366817A (en) * | 2018-12-26 | 2020-07-03 | 合肥中车轨道交通车辆有限公司 | Protective device |
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