CN109802317B - Safety protection device for EPS fire emergency power supply - Google Patents

Safety protection device for EPS fire emergency power supply Download PDF

Info

Publication number
CN109802317B
CN109802317B CN201910138508.0A CN201910138508A CN109802317B CN 109802317 B CN109802317 B CN 109802317B CN 201910138508 A CN201910138508 A CN 201910138508A CN 109802317 B CN109802317 B CN 109802317B
Authority
CN
China
Prior art keywords
emergency power
power supply
plate
opening
fixed plate
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
Application number
CN201910138508.0A
Other languages
Chinese (zh)
Other versions
CN109802317A (en
Inventor
张志军
张保卫
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.)
Zhina Electric Co ltd
Original Assignee
Zhina Electric 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 Zhina Electric Co ltd filed Critical Zhina Electric Co ltd
Priority to CN201910138508.0A priority Critical patent/CN109802317B/en
Publication of CN109802317A publication Critical patent/CN109802317A/en
Application granted granted Critical
Publication of CN109802317B publication Critical patent/CN109802317B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Stand-By Power Supply Arrangements (AREA)
  • Push-Button Switches (AREA)

Abstract

The invention discloses a safety protection device for an EPS fire emergency power supply, which relates to the technical field of fire-fighting equipment and comprises an emergency power supply box with a hollow structure, wherein an opening communicated with an inner cavity is formed in the emergency power supply box, a box door matched with the opening is hinged to one side of the opening, a fixed plate is arranged in the opening, an operation plate is arranged on the fixed plate in a directional sliding manner, the opening is shielded when the fixed plate and the operation plate are unfolded, an operation button is arranged on one end face of the operation plate, an operation switch which is on/off with an emergency power supply component in the emergency power supply box is arranged on the other end face of the operation plate, the operation button is electrically connected with the operation switch, and an opening and closing mechanism for fixing the operation plate on the fixed plate is arranged between the fixed plate and the operation plate; the protection effect of each part of the emergency power supply in the EPS emergency power supply box is improved, and the practical effect of the EPS emergency power supply box and the safety and stability during maintenance are improved.

Description

Safety protection device for EPS fire emergency power supply
Technical Field
The invention relates to the technical field of fire-fighting equipment, in particular to a safety protection device for an EPS fire-fighting emergency power supply.
Background
The EPS (Fire Emergency Power Supply) emergency power supply of the fire-fighting equipment is used as a reliable green standby power supply independent of the power grid, is widely applied to public places such as rail transit, communication, airports, hospitals, banks, government institutions, civil air defense, commercial and recreational centers and the like, and has the application range covering fire evacuation lighting, standby lighting, safety lighting and fire-fighting power equipment, and the importance of ensuring the supply of required emergency power under the condition of accident occurrence and providing powerful safety guarantee for the production and life safety of people.
The EPS power supply has the following principle: when the commercial power is normal, the commercial power supplies power to the important load through the output switching device, and meanwhile, the charger charges or floats the storage battery; when the mains supply is disconnected or the voltage exceeds the power supply range, the controller starts the inverter, and the output switching device immediately switches the mains supply state to the inverter for supplying power to provide emergency power for the load equipment; when the mains supply is restored, the emergency power supply will restore to mains supply.
At present, an EPS emergency power supply box is usually installed by a wall, a plurality of plates are welded or fixedly connected by bolts to form a traditional EPS emergency power supply box, each part of the emergency power supply is installed in a special emergency power supply box, the emergency power supply box is provided with a side opening for a user to operate, an adaptive box door is hinged in the side opening, and the box door is locked by a common mechanical lock; however, the protection of all parts of the emergency power supply in the EPS emergency power supply box through the box door cannot achieve a good protection effect, so that the emergency power supply is easy to cause problems, the using effect is affected, and potential safety hazards are easy to cause in the maintenance process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a safety protection device for an EPS fire emergency power supply, which has the advantages of improving the protection effect of each part of the emergency power supply in an EPS emergency power supply box, improving the practical effect of the EPS emergency power supply box and improving the safety stability during maintenance.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a safety device for EPS fire emergency power supply, includes the emergency power supply case that hollow structure set up, emergency power supply case has seted up the opening with the inner chamber intercommunication, one side of opening articulates there is the chamber door with it adaptation be provided with the fixed plate in the opening directional slip is provided with the operation panel on the fixed plate, just fixed plate and operation panel will when expanding the opening shelter from be provided with operating button on one terminal surface of operation panel, be provided with the operation switch with emergency power supply part on/off in the emergency power supply case at another terminal surface of operation panel, operating button with the operation switch electricity is connected be provided with the opening and close mechanism that is used for being fixed in the operation panel on the fixed plate between fixed plate and the operation panel.
When the emergency power supply of the EPS fire-fighting equipment needs to be detected or maintained, the box door is opened, the operation plate is slid on the fixed plate, the operation plate is fixed in the fixed plate through the opening and closing mechanism, and meanwhile, the operation switch connected with the operation button is disconnected with an emergency power supply part in the emergency power supply box, so that the safety performance in maintenance or operation is improved; then an opening on the emergency power supply box is opened, so that maintenance personnel can conveniently detect or maintain the emergency power supply box; finally, when the emergency power supply box needs to be closed, the operation plate is driven to overcome the supporting force of the opening and closing mechanism, the fixing plate and the operation plate are completely unfolded, and the operation plate is fixed again; through arranging operating switch on the operation panel to separate the protection through each emergency power source part in fixed plate and the corresponding emergency power source case of operation, have the protection effect that improves each part of its EPS emergency power source incasement emergency power source, simultaneously, make disconnection or intercommunication between its operating switch and the EPS emergency power source part through the slip operation panel, improve the practical effect of EPS emergency power source case and the safety and stability when maintaining.
Further set up: the fixed plate is internally provided with a sliding cavity, the operating plate slides in the sliding cavity, and the opening and closing mechanism is arranged between the side wall of the sliding cavity and the operating plate.
So set up, through with the operation panel slide in the slip intracavity of fixed plate, make its operation panel be in the fixed plate internal directional slip, stability and structural strength when improving the operation panel slip.
Further set up: the opening and closing mechanism comprises a wedge-shaped block and a return spring, one end of the return spring is fixedly connected with the wedge-shaped block, a mounting hole is formed in one cavity wall of the sliding cavity, the other end of the return spring is fixedly arranged at the bottom of the mounting hole, and the inclined surface of the wedge-shaped block is arranged outside the mounting hole.
When the operation plate is in contact with the wedge-shaped block, the acting force of the operation plate acts on the inclined plane of the wedge-shaped block to enable the return spring to be compressed, the wedge-shaped block is contracted towards the mounting hole, the operation block is in the sliding cavity and slides, when the interference force of the operation block to the wedge-shaped block is eliminated, the wedge-shaped block returns through the restoring force of the return spring, and the wedge-shaped block protrudes out of the mounting hole to be arranged, so that the purpose of supporting or limiting the operation block is achieved.
Further set up: the two wedge-shaped blocks are symmetrically arranged on two cavity walls of the sliding cavity.
The arrangement is that the wedge-shaped blocks on the two sides limit or support the operation plate, so that the stability of the operation plate in relative operation on the fixed plate is improved.
Further set up: the four end angles of the operation plate are all set to be chamfer angles.
When the operating plate contacts with the wedge-shaped block, the wedge-shaped block is conveniently caused to slide back and forth in the mounting hole by contacting the inclined surface of the wedge-shaped block through the chamfer angle, so that the purpose of controlling the opening and closing mechanism to control the operating plate to be in the relative position of the fixed plate is achieved.
Further set up: an operation block is fixedly arranged on the end face of the operation plate, a yielding groove is formed in the fixing plate, and the operation block is arranged in the yielding groove in a sliding mode.
So set up, when the operation board is in the fixed plate and slides, be in the inslot of stepping down through control operation piece and slide, be convenient for reach the purpose of operating the operation board.
Further set up: and a positioning groove is formed in the end face, far away from the abdication groove, of the fixing plate, and the operation switch directionally slides in the positioning groove.
So set up, when the operation board is in the fixed plate and slides, through making the operation switch be in the constant head tank and slide, be convenient for reach the purpose of operating the operation board.
Further set up: the side of opening bottom has seted up the grafting groove, and when fixed plate and operation panel were expanded, the bottom of operation panel peg graft in the grafting inslot.
So set up, when fixed plate and operation panel expand, through pegging graft the operation panel in the jack groove, make its spacing fixed purpose to the operation panel, improve the stability of operation panel installation on emergency power source case.
Further set up: one side edge of the fixing plate is hinged to one side wall of the opening.
The fixing plate is convenient to rotate at the opening, the opening is completely opened, and the purpose of being convenient for maintenance or operation in the emergency power supply box is achieved.
Further set up: the other side of the fixed plate is fixedly provided with a first magnet, and a second magnet corresponding to the first magnet is fixed on the other side wall of the opening.
The first magnet and the second magnet are mutually attached, so that the fixing plate of the first magnet is fixed at the opening of the emergency power supply box, and the emergency power supply components in the emergency power supply box are isolated and protected.
By adopting the technical scheme, compared with the prior art, the invention has the following advantages:
1. the operation switch is arranged on the operation plate, and each emergency power supply part in the corresponding emergency power supply box is operated through the fixing plate to be protected in a separated mode, so that the protection effect of each part of the emergency power supply in the EPS emergency power supply box is improved, meanwhile, the operation switch is disconnected or communicated with the EPS emergency power supply part through the sliding operation plate, and the practical effect of the EPS emergency power supply box and the safety stability in maintenance are improved;
2. the inclined surface of the wedge-shaped block is contacted with the inclined surface of the wedge-shaped block through the chamfer, so that the wedge-shaped block is conveniently caused to slide back and forth in the mounting hole, the operation plate is limited or supported through the wedge-shaped blocks at the two sides, the stability of the operation plate in relative operation on the fixed plate is improved, and the purpose of controlling the opening and closing mechanism to control the operation plate to be in the relative position of the fixed plate is achieved;
3. the operation switch slides in the positioning groove by controlling the operation block to slide in the abdication groove, so that the purpose of operating the operation plate is conveniently achieved, the purpose of limiting and fixing the operation plate is achieved by inserting the operation plate in the insertion groove, and the stability of the operation plate mounted on the emergency power supply box is improved;
4. one side of the fixing plate is hinged to one side wall of the opening, the fixing plate is conveniently rotated at the opening, the opening is fully opened, the purpose of convenient maintenance or operation in the emergency power supply box is achieved, and when the emergency power supply box is closed, the first magnet and the second magnet are mutually attached, so that the fixing plate is fixed at the opening of the emergency power supply box, and the emergency power supply part in the emergency power supply box is isolated and protected.
Drawings
FIG. 1 is a schematic view of a safety device for EPS fire emergency power supply when closed;
FIG. 2 is a schematic view of the structure of the EPS fire emergency power safety device when the safety device is opened;
FIG. 3 is a state diagram of the EPS fire emergency power safety shield apparatus when the operation panel is stored;
FIG. 4 is a cross-sectional view of the opening and closing mechanism with the operating panel received in the fixed panel;
FIG. 5 is an enlarged view of FIG. 4 at A;
fig. 6 is a state diagram of the fixing plate in the safety device for the EPS fire emergency power supply when being unfolded.
In the figure: 1. an emergency power supply box; 11. an opening; 12. a second magnet; 13. a plug-in groove; 2. a door; 3. a fixing plate; 31. a first magnet; 32. a sliding chamber; 33. a relief groove; 34. a positioning groove; 35. a mounting hole; 4. an operation panel; 41. operating a button; 42. an operation switch; 43. an operation block; 44. chamfering; 5. an opening and closing mechanism; 51. wedge-shaped blocks; 52. and a return spring.
Detailed Description
The safety protection device for the EPS fire emergency power supply is further described with reference to the accompanying drawings.
The safety protection device for the EPS fire emergency power supply comprises an emergency power supply box 1 and a box door 2, wherein the emergency power supply box 1 is arranged in a hollow structure and used for installing all parts of the emergency power supply, and the box door 2 is arranged in the hollow structure as shown in fig. 1 and 2; an opening 11 communicated with the inner cavity is formed in one end face of the emergency power supply box 1, and one side of the box door 2 is hinged to one side of the opening 11, so that the opening is matched with the box door to achieve the effect of closing the emergency power supply box 1.
As shown in fig. 2 and 6, a fixing plate 3 is arranged above the opening 11, the fixing plate 3 is arranged between the box door 2 and the emergency power supply, and one side edge of the fixing plate 3 is hinged on one side wall of the opening 11; a first magnet 31 is fixedly arranged on the other side of the fixed plate 3, a second magnet 12 corresponding to the first magnet 31 is fixed on the other side wall of the opening 11, and the purpose of fixing the fixed plate 3 above the opening 11 is achieved through interaction between the first magnet 31 and the second magnet 12.
As shown in fig. 3, 4 and 6, a sliding cavity 32 is formed in the fixed plate 3, an operation plate 4 is arranged in the sliding cavity 32 in a directional sliding manner, and the opening 11 is blocked when the fixed plate 3 and the operation plate 4 are unfolded; an operation button 41 is provided on one end surface of the operation panel 4, an operation switch 42 which is on/off with an emergency power supply part in the emergency power supply box 1 is provided on the other end surface of the operation panel 4, and the operation button 41 is electrically connected with the operation switch 42; meanwhile, an operation block 43 is fixedly arranged on the outer end surface of the operation plate 4, a yielding groove 33 is formed in the fixing plate 3, and the operation block 43 is arranged in the yielding groove 33 in a sliding manner; a positioning groove 34 is formed on the inner end surface of the fixed plate 3, and an operation switch 42 is directionally slid in the positioning groove 34.
As shown in fig. 4, an opening and closing mechanism 5 for fixing the operation plate 4 to the fixed plate 3 is provided between the fixed plate 3 and the operation plate 4, and the opening and closing mechanism 5 is provided between the side wall of the slide chamber 32 and the operation plate 4.
As shown in fig. 4 and 5, the opening and closing mechanism 5 includes a wedge block 51 and a return spring 52 having one end fixedly connected to the wedge block 51; a mounting hole 35 is formed in one cavity wall of the sliding cavity 32, the other end of the return spring 52 is fixedly arranged at the bottom of the mounting hole 35, inclined surfaces of the wedge-shaped blocks 51 are arranged outside the mounting hole 35, two groups of wedge-shaped blocks 51 are symmetrically arranged on two cavity walls of the sliding cavity 32, and the maximum elastic restoring force of the two return springs 52 is larger than the gravity value of the operation panel 4; meanwhile, the four end angles of the operation plate 4 are set to be chamfer angles 44, so that the operation plate 4 is driven to slide back and forth in the fixed plate 3.
As shown in fig. 2 and 3, in order to improve the stability of the operation panel 4 when being unfolded, the bottom end of the opening 11 is provided with a plugging slot 13, and when the fixing plate 3 and the operation panel 4 are unfolded, the bottom end of the operation panel 4 is plugged into the plugging slot 13.
Working principle: when the emergency power supply of the EPS fire-fighting equipment needs to be detected or maintained, firstly, the box door 2 is opened, the operation plate 4 is slid in the sliding groove of the fixed plate 3, the operation plate 4 is fixed in the fixed plate 3 through the opening and closing mechanism 5, and meanwhile, the operation switch 42 connected with the operation button 41 is disconnected with the emergency power supply component in the emergency power supply box 1, so that the safety performance during maintenance or operation is improved; secondly, the fixing plate 3 is rotated to enable the opening 11 on the emergency power supply box 1 to be completely opened, so that maintenance personnel can conveniently detect or maintain the emergency power supply box 1; finally, when the emergency power box 1 needs to be closed, the fixing plate 3 is rotated to enable the magnet 31 and the magnet 12 to be mutually attached, the operating plate 4 is driven to overcome the supporting force of the opening and closing mechanism 5, the fixing plate 3 and the operating plate 4 are completely unfolded, and meanwhile one end of the operating plate 4 is inserted into the inserting groove 13, so that the purpose of fixing the operating plate 4 again is achieved; through arranging operating switch 42 on operating panel 4 to separate the protection through fixed plate 3 and operation each emergency power source part in to emergency power source case 1, have the protection effect that improves each part of its emergency power source in the emergency power source case 1, simultaneously, improve the practical effect of emergency power source case 1 and the safety and stability when maintaining.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (7)

1. The utility model provides a safety device for EPS fire control emergency power source, includes emergency power source case (1) that hollow structure set up, emergency power source case (1) seted up with opening (11) of inner chamber intercommunication, one side of opening (11) articulates has chamber door (2) with its adaptation, its characterized in that: a fixed plate (3) is arranged in the opening (11), an operation plate (4) is arranged on the fixed plate (3) in a directional sliding manner, the opening (11) is shielded when the fixed plate (3) and the operation plate (4) are unfolded, an operation button (41) is arranged on one end face of the operation plate (4), an operation switch (42) which is on/off with an emergency power supply part in the emergency power supply box (1) is arranged on the other end face of the operation plate (4), the operation button (41) is electrically connected with the operation switch (42), and an opening and closing mechanism (5) for fixing the operation plate (4) on the fixed plate (3) is arranged between the fixed plate (3) and the operation plate (4); a sliding cavity (32) is formed in the fixed plate (3), the operation plate (4) slides in the sliding cavity (32), and the opening and closing mechanism (5) is arranged between the side wall of the sliding cavity (32) and the operation plate (4); the opening and closing mechanism (5) comprises a wedge-shaped block (51) and a return spring (52) with one end fixedly connected with the wedge-shaped block (51), a cavity wall of the sliding cavity (32) is provided with a mounting hole (35), the other end of the return spring (52) is fixedly arranged at the bottom of the mounting hole (35), and the inclined surface of the wedge-shaped block (51) is arranged outside the mounting hole (35); an operation block (43) is fixedly arranged on the end face of the operation plate (4), a yielding groove (33) is formed in the fixing plate (3), and the operation block (43) is slidably arranged in the yielding groove (33).
2. The safety device for an EPS fire emergency power supply according to claim 1, characterized in that: the two wedge-shaped blocks (51) are symmetrically arranged on the two cavity walls of the sliding cavity (32).
3. The safety device for an EPS fire emergency power supply according to claim 1 or 2, characterized in that: the four end angles of the operation plate (4) are all set to be chamfer angles (44).
4. The safety device for an EPS fire emergency power supply according to claim 1, characterized in that: the end face, far away from the abdication groove (33), of the fixing plate (3) is provided with a positioning groove (34), and the operation switch (42) directionally slides in the positioning groove (34).
5. The safety device for an EPS fire emergency power supply according to claim 1, characterized in that: the side of the bottom end of the opening (11) is provided with a plugging groove (13), and when the fixed plate (3) and the operation plate (4) are unfolded, the bottom end of the operation plate (4) is plugged in the plugging groove (13).
6. The safety device for an EPS fire emergency power supply according to claim 1, characterized in that: one side edge of the fixed plate (3) is hinged to one side wall of the opening (11).
7. The safety device for an EPS fire emergency power supply according to claim 6, characterized in that: a first magnet (31) is fixedly arranged on the other side edge of the fixed plate (3), and a second magnet (12) corresponding to the first magnet (31) is fixedly arranged on the other side wall of the opening (11).
CN201910138508.0A 2019-02-25 2019-02-25 Safety protection device for EPS fire emergency power supply Active CN109802317B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910138508.0A CN109802317B (en) 2019-02-25 2019-02-25 Safety protection device for EPS fire emergency power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910138508.0A CN109802317B (en) 2019-02-25 2019-02-25 Safety protection device for EPS fire emergency power supply

Publications (2)

Publication Number Publication Date
CN109802317A CN109802317A (en) 2019-05-24
CN109802317B true CN109802317B (en) 2024-03-15

Family

ID=66562288

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910138508.0A Active CN109802317B (en) 2019-02-25 2019-02-25 Safety protection device for EPS fire emergency power supply

Country Status (1)

Country Link
CN (1) CN109802317B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100985727B1 (en) * 2010-06-22 2010-10-11 동영전기 주식회사 A emergency power supply device having disorder monitoring function and power receiving and distributing board comprising of the same
CN105207094A (en) * 2015-10-20 2015-12-30 上海华欣民福电气科技有限公司 Maintenance bypass switch lock device for EPS emergency power supply
CN107069472A (en) * 2017-05-18 2017-08-18 国网山东省电力公司章丘市供电公司 A kind of intelligent distribution system suitable for power supply station
CN107783061A (en) * 2017-08-22 2018-03-09 安徽智瑞电气有限公司 A kind of power emergency power-supply system supervising device
CN207368501U (en) * 2017-11-03 2018-05-15 泉州维盾电气有限公司 Emergency power supply case
CN108155680A (en) * 2016-12-05 2018-06-12 北京市联创立源科技有限公司 Portable multifunctional solar emergency power supply case
CN207651820U (en) * 2017-12-11 2018-07-24 东莞市冉通电子有限公司 A kind of elevator emergency power cabinet of internal components easy to disassemble
CN207853529U (en) * 2018-01-26 2018-09-11 南京倍优德电气有限公司 EPS fire-fighting equipment emergency power supply safety devices
CN209374967U (en) * 2019-02-25 2019-09-10 志纳电器有限公司 EPS fire-fighting emergency power supply safety device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5243614B2 (en) * 2009-06-26 2013-07-24 株式会社日立製作所 Storage device, storage controller of storage device, and housing for storage controller

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100985727B1 (en) * 2010-06-22 2010-10-11 동영전기 주식회사 A emergency power supply device having disorder monitoring function and power receiving and distributing board comprising of the same
CN105207094A (en) * 2015-10-20 2015-12-30 上海华欣民福电气科技有限公司 Maintenance bypass switch lock device for EPS emergency power supply
CN108155680A (en) * 2016-12-05 2018-06-12 北京市联创立源科技有限公司 Portable multifunctional solar emergency power supply case
CN107069472A (en) * 2017-05-18 2017-08-18 国网山东省电力公司章丘市供电公司 A kind of intelligent distribution system suitable for power supply station
CN107783061A (en) * 2017-08-22 2018-03-09 安徽智瑞电气有限公司 A kind of power emergency power-supply system supervising device
CN207368501U (en) * 2017-11-03 2018-05-15 泉州维盾电气有限公司 Emergency power supply case
CN207651820U (en) * 2017-12-11 2018-07-24 东莞市冉通电子有限公司 A kind of elevator emergency power cabinet of internal components easy to disassemble
CN207853529U (en) * 2018-01-26 2018-09-11 南京倍优德电气有限公司 EPS fire-fighting equipment emergency power supply safety devices
CN209374967U (en) * 2019-02-25 2019-09-10 志纳电器有限公司 EPS fire-fighting emergency power supply safety device

Also Published As

Publication number Publication date
CN109802317A (en) 2019-05-24

Similar Documents

Publication Publication Date Title
CN109802317B (en) Safety protection device for EPS fire emergency power supply
KR101128868B1 (en) Switch
CN113422308A (en) Explosion-proof high-voltage power distribution cabinet who possesses automatic pressure release function
CN212323424U (en) Movable power distribution cabinet
CN105471081B (en) A kind of anti-mistaken interlocking device that 10KV high-voltage central-positioned switchgear supplies power with double circuit
CN203774862U (en) Power supplying circuit of power distribution automation terminal equipment
CN217388507U (en) Linear motor with shutdown locking function
CN209374967U (en) EPS fire-fighting emergency power supply safety device
CN214754530U (en) Electricity taking device
CN209517693U (en) Cabinet expands module
CN215835143U (en) Fire-proof rolling shutter controller with two 18650 lithium batteries connected in series as standby power supply
CN211923907U (en) Power failure prevention translation automatic door
CN111668711A (en) Power plant user's outer safe transformer case installation cabinet
CN110212423A (en) A kind of electrical equipment is with holding cabinet
CN210902318U (en) Liftable intelligent goods shelves of storage
CN203674127U (en) Switchgear breaker opening system
CN102480139A (en) Automatic power-off device for charger
CN112583104A (en) Mining incessant formula DC power supply control box
CN201111314Y (en) General vacuum air pressing type combined power distribution device for mining
CN215818928U (en) High temperature resistant boiler control box
CN210669626U (en) High-voltage live display locking device
CN217587332U (en) Multifunctional automatic test device for power system
CN209626652U (en) Coal mine high-voltage vacuum distribution equipment locking protective device
CN214589465U (en) Quick access device of emergency power supply under natural disaster condition
CN218367414U (en) Electric automobile alternating-current charging stake socket fixing device that charges

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