CN110265236A - A kind of hook interlocking counter of lightning arrester device - Google Patents

A kind of hook interlocking counter of lightning arrester device Download PDF

Info

Publication number
CN110265236A
CN110265236A CN201910625845.2A CN201910625845A CN110265236A CN 110265236 A CN110265236 A CN 110265236A CN 201910625845 A CN201910625845 A CN 201910625845A CN 110265236 A CN110265236 A CN 110265236A
Authority
CN
China
Prior art keywords
rotation axis
base member
member case
static contact
mounting base
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.)
Granted
Application number
CN201910625845.2A
Other languages
Chinese (zh)
Other versions
CN110265236B (en
Inventor
李维立
邹浩斌
叶振捷
胡金磊
钟芬芳
陈伯韬
赵文
张培培
徐远途
王伟
徐松
曾汉青
郑志宏
朱德强
盘荣波
董富德
王伟杰
薛博文
罗文科
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Power Grid Co Ltd
Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Power Grid Co Ltd, Qingyuan Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN201910625845.2A priority Critical patent/CN110265236B/en
Publication of CN110265236A publication Critical patent/CN110265236A/en
Application granted granted Critical
Publication of CN110265236B publication Critical patent/CN110265236B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/02Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B3/00Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

The technical issues of present invention discloses a kind of hook interlocking counter of lightning arrester device, counter of lightning arrester for the replacement damage that solves to need to have a power failure in the prior art.The present embodiment includes base member case and mounting base;Mounting base is equipped with counter, and mounting base, which is equipped with, connects lead moving contact and ground connection moving contact;It is equipped in base member case and connects lead static contact and the first grounding static contact, ground line end of incoming cables is installed in base member case and connects lead end of incoming cables, ground line end of incoming cables is attached with the first grounding static contact, it connects and is connected with the second grounding static contact on lead end of incoming cables, the second grounding static contact is attached with lead static contact is connect;Bottom in base member case is additionally provided with the first rotation axis, the first end of first rotation axis is connected with the first operating stick, the second end of first rotation axis is connected with holding section, the second rotation axis is set on the axis body of first rotation axis, the first end of second rotation axis is connected with the second operating stick, and the second end of the second rotation axis is connected with earthing moving contact.

Description

A kind of hook interlocking counter of lightning arrester device
Technical field
The present invention relates to grid equipment technical field more particularly to a kind of hook interlocking counter of lightning arrester devices.
Background technique
Arrester is widely used in substation, because of situations such as dampness, arrester multiple discharge, will lead to arrester meter The defects of number device internal damage, pointer fall off or glass surface is smudgy, just needs the replacement counter of lightning arrester that has a power failure at this time.Cause Number of applications is more, high failure rate causes such defects count high, eliminates ratio of defects in time and is difficult to ensure, and halt device Eliminating defect need to turn to adjust the method for operation for load, increase power grid rush hour operation risk, influence the reliability of user.
Therefore, in order to solve the above technical problems, finding a kind of hook interlocking counter of lightning arrester device becomes ability The important topic that field technique personnel are studied.
Summary of the invention
The embodiment of the invention discloses a kind of hook interlocking counter of lightning arrester devices, need in the prior art for solving The technical issues of counter of lightning arrester that the replacement that has a power failure damages.
The embodiment of the invention provides a kind of hook interlocking counter of lightning arrester devices, including base member case and mounting base;
Counter is threaded in the mounting base, the back side of the mounting base, which is provided with, connects lead moving contact and ground connection Moving contact;
Be equipped in the base member case and connect lead static contact and the first grounding static contact, wherein it is described connect lead static contact with The lead moving contact that connects is attached, and the ground connection moving contact is attached with first grounding static contact;The pedestal Top in case is equipped with cross bar, and the back side of the mounting base is provided with hook, the hook hook on the cross bar;
Bottom in the base member case is equipped with ground line end of incoming cables and connects lead end of incoming cables, the ground line end of incoming cables and First grounding static contact is attached, and described connect is connected with the second grounding static contact on lead end of incoming cables, and described second connects Ground static contact is attached with the lead static contact that connects;
Bottom in the base member case is additionally provided with the first rotation axis, and the first end of first rotation axis is connected with first Operating stick, the second end of first rotation axis are connected with holding section, and first operating stick can drive first rotation axis Rotation, is fixed the holding section to mounting base;The second rotation axis is set on the axis body of first rotation axis, it is described The first end of second rotation axis is connected with the second operating stick, and the second end of second rotation axis is connected with earthing moving contact, Second operating stick can drive second rotation axis to rotate clockwise, and make the earthing moving contact and second ground connection Static contact is attached.
Optionally, handle hole is provided at the top of the mounting base.
Optionally, fixing clamp is also equipped in the base member case;
When second operating stick drives second rotation axis to rotate counterclockwise, the ground connection moving contact is made to be sticked in institute It states on fixing clamp.
Optionally, locking button is also equipped in the base member case, the locking button bit in the rear side of second operating stick, The back side of the locking button is connected with spring leaf, and carries out elastic connection by the spring leaf and the base member case.
Optionally, one layer of water-repellent paint is coated on the outer wall of the base member case.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
In the present embodiment, staff can rotate clockwise the second operating stick, be grounded earthing moving contact with second quiet Contact is attached, and is grounded lead circuit, avoids high pressure occur when replacement hurting sb.'s feelings, by rotating clockwise the One operation pull rod connects the lead static contact and first that connects that lead moving contact leaves base member case with ground connection moving contact that connects of mounting base Ground static contact takes out mounting base using insulating bar, and disassembly mounting base, which is tightened up a screw, carries out replacement damage counter.Entire replacement Process is simple and convenient, avoids having a power failure, can convenient replacing counter.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the hook interlocking counter of lightning arrester device provided in the embodiment of the present invention;
Fig. 2 is the knot of the base member case in a kind of hook interlocking counter of lightning arrester device provided in the embodiment of the present invention Structure schematic diagram;
Fig. 3 is the back of the mounting base in a kind of hook interlocking counter of lightning arrester device provided in the embodiment of the present invention Face structural schematic diagram;
Fig. 4 is the side of the mounting base in a kind of hook interlocking counter of lightning arrester device provided in the embodiment of the present invention Face structural schematic diagram;
Fig. 5 is the dynamic touching of earthing in a kind of hook interlocking counter of lightning arrester device provided in the embodiment of the present invention The schematic enlarged-scale view that head is connect with the second grounding static contact;
Fig. 6 is the mounting base disassembly in a kind of hook interlocking counter of lightning arrester device provided in the embodiment of the present invention Process schematic;
Fig. 7 is the mounting base installation in a kind of hook interlocking counter of lightning arrester device provided in the embodiment of the present invention Process schematic;
It illustrates: base member case 1;First grounding static contact 2;Connect lead static contact 3;It is grounded moving contact 4;Mounting base 5;The One operating stick 6;Second operating stick 7;First rotation axis 8;Second rotation axis 9;Earthing moving contact 10;Holding section 11;Counter 12;Hook 13;Second grounding static contact 14;Fixing clamp 15;Locking button 16;Connect lead moving contact 17.
Specific embodiment
The embodiment of the invention discloses a kind of hook interlocking counter of lightning arrester devices, need in the prior art for solving The technical issues of counter of lightning arrester that the replacement that has a power failure damages.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Fig. 1 to Fig. 7 is please referred to, a kind of hook interlocking counter of lightning arrester device provided in the embodiment of the present invention One embodiment includes:
Base member case 1 and mounting base 5;
Counter 12 is threaded in the mounting base 5, the back side of the mounting base 5, which is provided with, connects lead moving contact 17 With ground connection moving contact 4;
It is equipped in the base member case 1 and connects lead static contact 3 and the first grounding static contact 2, wherein described connect lead stationary contact First 3 are attached with the lead moving contact 17 that connects, and the ground connection moving contact 4 is attached with first grounding static contact 2; Top in the base member case 1 is equipped with cross bar, and the back side of the mounting base 5 is provided with hook 13, the hook 13 hook with On the cross bar;
Bottom in the base member case 1 is equipped with ground line end of incoming cables and connects lead end of incoming cables, the ground line end of incoming cables It being attached with first grounding static contact 2, described connect is connected with the second grounding static contact 14 on lead end of incoming cables, and described Two grounding static contacts 14 are attached with the lead static contact 3 that connects;
Bottom in the base member case 1 is additionally provided with the first rotation axis 8, and the first end of first rotation axis 8 is connected with First operating stick 6, the second end of first rotation axis 8 are connected with holding section 11, and first operating stick 6 can drive described The rotation of one rotation axis 8, is fixed the holding section 11 to mounting base 5;Is set on the axis body of first rotation axis 8 Two rotation axis 9, the first end of second rotation axis 9 are connected with the second operating stick 7, and the second end of second rotation axis 9 connects It is connected to earthing moving contact 10, second operating stick 7 can drive second rotation axis 9 to rotate clockwise, make the ground connection Knife moving contact 10 is attached with second grounding static contact 14.
In the present embodiment, staff can make earthing moving contact 10 and second clockwise through the second operating stick 7 of rotation Grounding static contact 14 is attached, and is grounded lead circuit, avoids high pressure occur when replacement hurting sb.'s feelings, and is passing through up time Needle rotation the first operation pull rod, make mounting base 5 connect lead moving contact 17 and be grounded that moving contact 4 leaves base member case 1 connects lead Static contact 3 and the first grounding static contact 2 take out mounting base 5 using insulating bar, and disassembly mounting base 5, which is tightened up a screw, to be replaced Damage counter 12.Entire replacement process is simple and convenient, avoids having a power failure, can convenient replacing counter 12.
Further, the top of the mounting base 5 is provided with handle hole.
It should be noted that staff can be inserted in by insulating bar in handle hole by mounting base 5 take out base member case 1 or Mounting base 5 is installed in base member case 1.
Further, fixing clamp 15 is also equipped in the base member case 1;
When second operating stick 7 drives second rotation axis 9 to rotate counterclockwise, engage the ground connection moving contact 4 In on the fixing clamp 15.
It should be noted that when mounting base 5 is fixedly installed in base member case 1, the engaging of ground connection moving contact 4 and fixing clamp 15 On.
Further, locking button 16 is also equipped in the base member case 1, the locking button 16 is located at second operating stick 7 rear side, the back side of the locking button 16 is connected with spring leaf, and carries out bullet by the spring leaf and the base member case 1 Property connection.
It should be noted that blocking the second operation pull rod when the second operating stick 7 is used for separating brake, avoid accidentally touching when replacement Earthing knife-switch moving contact 10.
Further, one layer of water-repellent paint is coated on the outer wall of the base member case 1.
It should be noted that being coated with water-repellent paint on the outer wall of base member case 1, it can enable rainwater quickly from base member case 1 slides, and rainwater is avoided to stop the outer wall with base member case 1.
Above-mentioned is detailed to a kind of structure progress for linking up with 13 interlocking counter of lightning arrester, 12 device provided by the invention Description, the present apparatus will be further described through with an application method below, it is provided by the invention it is a kind of hook 13 The application examples of 12 device of locking-type counter of lightning arrester includes:
Fig. 1 to Fig. 7 is please referred to, the process of counter 12 is dismantled: first operating the second operating stick 7 clockwise, at this time earthing Moving contact 10 is detached from fixing clamp 15, closes a floodgate to the second grounding static contact 14, is grounded " lead circuit under arrester ", avoids replacing When there is high pressure and hurt sb.'s feelings, then rotate clockwise the first operating stick 6, make the no longer fixed mounting 5 of holding section 11, in mounting base 5 It connects lead moving contact 17 and be grounded that moving contact 4 leaves base member case 1 connects lead static contact 3 and the first grounding static contact 2, using exhausted Edge bar handle hole takes out mounting base 5, and disassembly mounting base 5, which is tightened up a screw, carries out replacement damage counter 12.
The process of counter 12 is installed: the mounting base 5 for installing refresh counter 12 is hung in base member case 1 with insulating bar, The first operation pull rod is rotated counterclockwise, connecing lead moving contact 17 and be grounded moving contact 4 inserted base case 1 and connecing for mounting base 5 is made Lead static contact 3 and the first grounding static contact 2 are in close contact them.Locking button 16 has been latched the second operating stick 7 at this time, needs Pressing locking button 16 makes its unlock, rotates counterclockwise the second operating stick 7, and earthing moving contact 10 is made to be detached from the second ground connection stationary contact First 14, it is connected with fixing clamp 15, " lead circuit under arrester " is no longer grounded at this time, state of resuming operation.
The advantages of 13 interlocking 12 device of counter of lightning arrester of this hook, is:
1, it is able to achieve charged for replacement counter of lightning arrester 12, the adjustment method of operation is not needed, reduces the operation wind of power grid The reliability of user is improved in danger, reduces the negative effect to society.
2, counter 12 is placed in a device, is avoided that it exposes to the sun and rain, greatly reduction rate of breakdown, is reduced thus Caused by labour cost, fee of material, traffic expense.
3, device is suitable for the arrester and diversified forms counter 12 of substation, the whole province, applied widely, solves again Drilling problems.
4, do not have to redesign electrification replacing tool, directly use insulating bar, promotional value is high.
5, high altitude operation is converted into Ground Operation, improved work efficiency, reduce operating risk, ensure that safe life It produces.
6, it effectively reduces because the power off time and defect elimination time, economic and social benefit of defect elimination are very big.
7, for the present apparatus convenient for transplanting, production cost is low, and demand degree is high, versatile, convenient for installation and maintenance.
A kind of hook interlocking counter of lightning arrester device provided by the present invention is described in detail above, for Those of ordinary skill in the art, thought according to an embodiment of the present invention, have in specific embodiments and applications Change place, in conclusion the contents of this specification are not to be construed as limiting the invention.

Claims (5)

1. a kind of hook interlocking counter of lightning arrester device, which is characterized in that including base member case and mounting base;
Counter is threaded in the mounting base, the back side of the mounting base, which is provided with, connects lead moving contact and the dynamic touching of ground connection Head;
Be equipped in the base member case and connect lead static contact and the first grounding static contact, wherein it is described connect lead static contact with it is described It connects lead moving contact to be attached, the ground connection moving contact is attached with first grounding static contact;In the base member case Top cross bar is installed, the back side of the mounting base is provided with hook, the hook hook on the cross bar;
Bottom in the base member case is equipped with ground line end of incoming cables and connects lead end of incoming cables, the ground line end of incoming cables with it is described First grounding static contact is attached, and described connect is connected with the second grounding static contact on lead end of incoming cables, and second ground connection is quiet Contact is attached with the lead static contact that connects;
Bottom in the base member case is additionally provided with the first rotation axis, and the first end of first rotation axis is connected with the first operation Bar, the second end of first rotation axis are connected with holding section, and first operating stick can drive first rotation axis to rotate, The holding section is fixed to mounting base;It is set with the second rotation axis on the axis body of first rotation axis, described second The first end of rotation axis is connected with the second operating stick, and the second end of second rotation axis is connected with earthing moving contact, described Second operating stick can drive second rotation axis to rotate clockwise, and make the earthing moving contact and the second ground connection stationary contact Head is attached.
2. hook interlocking counter of lightning arrester device according to claim 1, which is characterized in that the top of the mounting base Portion is provided with handle hole.
3. hook interlocking counter of lightning arrester device according to claim 1, which is characterized in that in the base member case also Fixing clamp is installed;
When second operating stick drives second rotation axis to rotate counterclockwise, it is sticked in the ground connection moving contact described solid In clamp.
4. hook interlocking counter of lightning arrester device according to claim 1, which is characterized in that in the base member case also Locking button is installed, the locking button bit is connected with spring leaf in the rear side of second operating stick, the back side of the locking button, And elastic connection is carried out by the spring leaf and the base member case.
5. hook interlocking counter of lightning arrester device according to claim 1, which is characterized in that outside the base member case One layer of water-repellent paint is coated on wall.
CN201910625845.2A 2019-07-11 2019-07-11 Couple interlocking formula arrester counter device Active CN110265236B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910625845.2A CN110265236B (en) 2019-07-11 2019-07-11 Couple interlocking formula arrester counter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910625845.2A CN110265236B (en) 2019-07-11 2019-07-11 Couple interlocking formula arrester counter device

Publications (2)

Publication Number Publication Date
CN110265236A true CN110265236A (en) 2019-09-20
CN110265236B CN110265236B (en) 2024-07-26

Family

ID=67925636

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910625845.2A Active CN110265236B (en) 2019-07-11 2019-07-11 Couple interlocking formula arrester counter device

Country Status (1)

Country Link
CN (1) CN110265236B (en)

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0864083A (en) * 1994-08-19 1996-03-08 Railway Technical Res Inst Switch device
JPH11102628A (en) * 1997-09-26 1999-04-13 Mitsubishi Electric Corp Switch operation mechanism
CN201017808Y (en) * 2007-03-16 2008-02-06 王志忠 Safety high voltage ground switch
KR20110011961U (en) * 2010-06-22 2011-12-28 이병규 Device for door locking of the switch board
CN203895338U (en) * 2014-05-27 2014-10-22 张家港保税区常润电气有限公司 Isolation switch for high voltage isolation cabinet
CN205067580U (en) * 2015-09-30 2016-03-02 贵州电网有限责任公司都匀供电局 Quick assembly disassembly discharge counter
CN206059255U (en) * 2016-09-19 2017-03-29 贵州电网有限责任公司都匀供电局 A kind of power failure changes the quick short circuit disconnecting link of discharge counter
CN107887796A (en) * 2017-11-16 2018-04-06 安徽泰格电气科技股份有限公司 One kind overhauls convenient power distribution cabinet
CN108508257A (en) * 2018-04-20 2018-09-07 贵州电网有限责任公司 It is a kind of can charged for replacement discharge counter access system
CN108565817A (en) * 2018-06-29 2018-09-21 广东电网有限责任公司 Counter of lightning arrester more changing device and counter of lightning arrester replace system
CN208061789U (en) * 2018-02-22 2018-11-06 深圳供电局有限公司 High-frequency choke inductor
CN108963844A (en) * 2018-09-21 2018-12-07 广东电网有限责任公司 Arrester discharge counter live replacing device
CN109239450A (en) * 2018-09-26 2019-01-18 广东电网有限责任公司 Counter installing mechanism
CN209822482U (en) * 2019-07-11 2019-12-20 广东电网有限责任公司 Hook interlocking type lightning arrester counter device

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0864083A (en) * 1994-08-19 1996-03-08 Railway Technical Res Inst Switch device
JPH11102628A (en) * 1997-09-26 1999-04-13 Mitsubishi Electric Corp Switch operation mechanism
CN201017808Y (en) * 2007-03-16 2008-02-06 王志忠 Safety high voltage ground switch
KR20110011961U (en) * 2010-06-22 2011-12-28 이병규 Device for door locking of the switch board
CN203895338U (en) * 2014-05-27 2014-10-22 张家港保税区常润电气有限公司 Isolation switch for high voltage isolation cabinet
CN205067580U (en) * 2015-09-30 2016-03-02 贵州电网有限责任公司都匀供电局 Quick assembly disassembly discharge counter
CN206059255U (en) * 2016-09-19 2017-03-29 贵州电网有限责任公司都匀供电局 A kind of power failure changes the quick short circuit disconnecting link of discharge counter
CN107887796A (en) * 2017-11-16 2018-04-06 安徽泰格电气科技股份有限公司 One kind overhauls convenient power distribution cabinet
CN208061789U (en) * 2018-02-22 2018-11-06 深圳供电局有限公司 High-frequency choke inductor
CN108508257A (en) * 2018-04-20 2018-09-07 贵州电网有限责任公司 It is a kind of can charged for replacement discharge counter access system
CN108565817A (en) * 2018-06-29 2018-09-21 广东电网有限责任公司 Counter of lightning arrester more changing device and counter of lightning arrester replace system
CN108963844A (en) * 2018-09-21 2018-12-07 广东电网有限责任公司 Arrester discharge counter live replacing device
CN109239450A (en) * 2018-09-26 2019-01-18 广东电网有限责任公司 Counter installing mechanism
CN209822482U (en) * 2019-07-11 2019-12-20 广东电网有限责任公司 Hook interlocking type lightning arrester counter device

Also Published As

Publication number Publication date
CN110265236B (en) 2024-07-26

Similar Documents

Publication Publication Date Title
CN108988203B (en) Line arrester changes device
CN110265236A (en) A kind of hook interlocking counter of lightning arrester device
CN211018217U (en) Lightning arrester mounting bracket
CN107611916B (en) A kind of movable mounting structure of electric ceramic lightning arrester
CN201087972Y (en) Static eliminating device of rubbing machine
CN219739929U (en) Lightning arrester convenient to installation
CN209785774U (en) Double-knife-switch type arrester counter device
CN210199195U (en) Rotary locking type lightning arrester counter device
CN209822482U (en) Hook interlocking type lightning arrester counter device
CN110233070A (en) A kind of double-pole lock formula counter of lightning arrester device
CN111105960A (en) Circuit breaker for power protection
CN210199196U (en) Couple impulse type arrester counter device
CN110208595A (en) A kind of blocks rotation formula counter of lightning arrester device
CN212085444U (en) High-voltage switch equipment protection mechanism
CN208078640U (en) A kind of surge protector of portable installation
CN204668446U (en) A kind of antenna for 4G network base station plate
CN103696911B (en) A kind of wind power generating set lighting protection device, wind power generating set and lightening arresting method
CN202258608U (en) Combined type compound jacket zinc oxide arrester
CN110231509A (en) A kind of pusher counter of lightning arrester device of hook
CN207681068U (en) A kind of arrester with long service life
CN221900256U (en) Slide rail ground terminal convenient to splice
CN212216301U (en) Printing pretreatment device for production and processing of wires and cables
CN204858488U (en) High tension transmission line's ground wire insulation system
CN205280774U (en) A installation switching device for arrester on -line monitoring appearance
CN208767760U (en) A kind of open air arrester device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant