CN112186562A - High-voltage power electrical power distribution cabinet - Google Patents

High-voltage power electrical power distribution cabinet Download PDF

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Publication number
CN112186562A
CN112186562A CN202011039836.4A CN202011039836A CN112186562A CN 112186562 A CN112186562 A CN 112186562A CN 202011039836 A CN202011039836 A CN 202011039836A CN 112186562 A CN112186562 A CN 112186562A
Authority
CN
China
Prior art keywords
push rod
rotating shaft
cabinet door
inner cavity
voltage power
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.)
Withdrawn
Application number
CN202011039836.4A
Other languages
Chinese (zh)
Inventor
冯金霞
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.)
Foshan Bozhi Yingju Technology Co Ltd
Original Assignee
Foshan Bozhi Yingju Technology 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 Foshan Bozhi Yingju Technology Co Ltd filed Critical Foshan Bozhi Yingju Technology Co Ltd
Priority to CN202011039836.4A priority Critical patent/CN112186562A/en
Publication of CN112186562A publication Critical patent/CN112186562A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/38—Hinged covers or doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/02—Lubricating arrangements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/303—Bases or feet
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins
    • E05D2005/102—Pins
    • E05D2005/104—Pins characterised by the materials

Abstract

The invention provides a high-voltage power electrical power distribution cabinet, which comprises a cabinet body, a first rotating shaft, a cabinet door, a second rotating shaft, a connecting shaft, a nut column, a first spiral spring, a piston and a push rod, wherein one side of an opening of the cabinet body is provided with an inward protruding edge, the protruding edge is provided with a groove, a first inner cavity and a second inner cavity are arranged in the protruding edge, the first inner cavity is communicated with the second inner cavity through a first through hole, a first sealing cavity is formed among the piston, the first inner cavity and the push rod, lubricating grease is filled in the first sealing cavity, one end of the first spiral spring is fixedly connected with the side wall of the first inner cavity, the other end of the first spiral spring is fixedly connected with one end of the push rod, one end of the push rod is connected with the inner wall of the first through hole in a sliding and sealing manner, one end. The cabinet door can limit the positions of the first rotating shaft and the cabinet door, so that technicians can conveniently open the cabinet door and clean and maintain the electric elements in the high-voltage power electric power distribution cabinet.

Description

High-voltage power electrical power distribution cabinet
Technical Field
The invention relates to the technical field of high-voltage electrical equipment, in particular to a high-voltage power electrical power distribution cabinet.
Background
The high-voltage power distribution cabinet can be called as a high-voltage switch cabinet, is an electrical appliance product which is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and plays roles of on-off, control or protection and the like, has a voltage grade of 3.6-550 kV, and mainly comprises a high-voltage circuit breaker, a high-voltage isolating switch, a grounding switch, a high-voltage load switch, a high-voltage automatic reclosing and sectionalizing device, a high-voltage operating mechanism, a high-voltage explosion-proof power distribution device, a high-voltage switch cabinet and the.
Due to maintenance and cleaning requirements, the doors of high voltage distribution cabinets need to be opened and closed. But the cabinet body and the door body of present high voltage distribution cabinet all are through hinge connection generally, when cleaning or maintaining high voltage distribution cabinet internal component, the cabinet door can autogiration close even, influences cleanness and maintenance progress, and its structure remains to be improved.
Disclosure of Invention
Based on this, in order to solve the problem that the cabinet door of the prior high-voltage power distribution cabinet can automatically rotate or even close when being cleaned or maintained, and the cleaning and maintenance progress is influenced, the invention provides a high-voltage power electric power distribution cabinet, which has the following specific technical scheme:
a high-voltage power electrical power distribution cabinet comprises a cabinet body, a first rotating shaft and a cabinet door, wherein an inward protruding edge is arranged on one side of an opening of the cabinet body, a slot is formed in the protruding edge, the cabinet door is rotatably connected with the slot through the first rotating shaft, the high-voltage power electrical power distribution cabinet further comprises a second rotating shaft, a connecting shaft, a nut column, a first spiral spring, a piston and a push rod, a first inner cavity and a second inner cavity are arranged in the protruding edge, one end of the second rotating shaft is rotatably connected with a side wall, far away from the cabinet door, of the first inner cavity, the other end of the second rotating shaft is fixedly connected with one end of the connecting shaft, the other end of the connecting shaft extends into the first inner cavity and is in threaded connection with the nut column, the piston is fixedly connected with one end, far away from the second rotating shaft, of the nut column is in sliding sealing connection with the inner wall, first inner chamber with the second inner chamber is through first through-hole intercommunication, the piston first inner chamber form a first sealed cavity between the push rod, it has lubricating grease to fill in the first sealed cavity, first coil spring's one end with first inner chamber is kept away from the lateral wall fixed connection of second inner chamber, first coil spring's the other end with the one end fixed connection of push rod, the one end of push rod with the inner wall sliding seal of first through-hole connects, the one end of first pivot stretch into in the second inner chamber and be equipped with the other end assorted draw-in groove of push rod, the second pivot is made by the fusible alloy.
Optionally, the high-voltage power electric power distribution cabinet further comprises a lock, the lock comprises an inner lock cylinder, the lock is installed in the side wall of the cabinet door far away from the first inner cavity, and one end of the second rotating shaft is connected with the side wall of the cabinet door far away from the first inner cavity in a rotating mode through the inner lock cylinder.
Optionally, the lock further includes an outer lock cylinder, a second spiral spring, an outer pin tumbler and an inner pin tumbler, at least one outer pin tumbler hole is formed in the outer lock cylinder, an inner pin tumbler hole matched with the outer pin tumbler hole is formed in the inner lock cylinder, the inner lock cylinder is sleeved in the outer lock cylinder, the second spiral spring and the outer pin tumbler are installed in the outer pin tumbler hole, one end of the second spiral spring is in contact with the side wall of the outer pin tumbler hole far away from the inner lock cylinder, the other end of the second spiral spring is in contact with one end of the outer pin tumbler, and the inner pin tumbler is installed in the inner pin tumbler hole.
Optionally, the high voltage power electrical distribution cabinet further comprises a key matched with the lock.
Optionally, the melting temperature of the second rotating shaft is between 65 ℃ and 80 ℃.
Optionally, the nut column is a press-riveting nut column.
Optionally, the clamping groove is in a regular hexagon shape.
Optionally, a switch handle is arranged on the cabinet door.
Optionally, the lock is made of an aluminum alloy material.
Optionally, the bottom of the cabinet body is provided with a rubber foot pad.
One end of the second rotating shaft is rotatably connected with the side wall, far away from the cabinet door, of the first inner cavity, the other end of the second rotating shaft is fixedly connected with one end of the connecting shaft, the other end of the connecting shaft extends into the first inner cavity and is in threaded connection with the nut column, and one end of the nut column is fixedly connected with the piston, so that the connecting shaft can be driven to rotate by rotating the second rotating shaft, and the piston is driven to move back and forth along the side wall of the first inner cavity. And first coil spring set up the lateral wall at first inner chamber with between the one end of push rod, the one end of push rod and the inner wall sliding seal of first through-hole are connected, the one end of first pivot be equipped with the other end assorted draw-in groove of push rod, it has lubricating grease to fill in the first sealed cavity, through the lateral wall round trip movement of drive piston along first inner chamber, can make the push rod slide from top to bottom along the inner wall of first through-hole, and then make the other end card of push rod go into in the draw-in groove or follow break away from in the draw-in groove to prescribe a limit to the position of first pivot and cabinet door, make things convenient for the technical staff to open the cabinet door, clean and maintain the inside electrical component of high-voltage power electrical distribution cabinet.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a schematic diagram of the overall structure of a high-voltage power electrical distribution cabinet according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic view of an overall lock structure of a high-voltage power electrical distribution cabinet according to an embodiment of the present invention;
fig. 4 is a schematic view of a structural relationship among a memory spring, a spike, an elastic membrane and a protruding edge of a high voltage power electrical distribution cabinet according to an embodiment of the present invention;
fig. 5 is a schematic structural relationship diagram of a third inner cavity, a rubber block, a third coil spring, a top bar and a raised edge of the high-voltage power electrical distribution cabinet according to an embodiment of the present invention;
fig. 6 is a schematic structural relationship diagram of a first limiting block, a second limiting block, a first round bar, a second round bar and a third inner cavity of a high-voltage power electrical distribution cabinet according to an embodiment of the present invention.
Description of reference numerals:
1. a cabinet body; 2. a first rotating shaft; 3. a cabinet door; 4. a second rotating shaft; 5. a nut post; 6. a piston; 7. a first coil spring; 8. a push rod; 9. a raised edge; 10. grooving; 11. a first lumen; 12. a second lumen; 13. a first through hole; 14. an inner lock cylinder; 15. an outer lock cylinder; 16. a second coil spring; 17. an outer pin; 18. an inner marble; 19. an outer bullet hole; 20. an inner bullet hole; 21. a memory spring; 22. a spike portion; 23. an elastic film; 24. a second through hole; 25. a first round bar; 26. a top rod; 27. a third coil spring; 28. a rubber block; 29. a third lumen; 30. a groove; 31. a first stopper; 32. a second round bar; 33. a second limiting block; 34. and (7) connecting the shafts.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
The first embodiment is as follows:
as shown in fig. 1 and fig. 2, a high voltage power electrical distribution cabinet includes a cabinet body 1, a first rotating shaft 2 and a cabinet door 3, wherein an inward protruding edge 9 is disposed on one side of an opening of the cabinet body 1, the protruding edge 9 is provided with a slot 10, the cabinet door 3 is rotatably connected to the slot 10 through the first rotating shaft 2, the high voltage power electrical distribution cabinet further includes a second rotating shaft 4, a connecting shaft 34, a nut column 5, a first spiral spring 7, a piston 6 and a push rod 8, a first inner cavity 11 and a second inner cavity 12 are disposed in the protruding edge 9, one end of the second rotating shaft 4 is rotatably connected to a side wall of the first inner cavity 11 away from the cabinet door 3, the other end of the second rotating shaft 4 is fixedly connected to one end of the connecting shaft 34, and the other end of the connecting shaft 34 extends into the first inner cavity 11 and is in threaded connection with the nut column 5, the piston 6 is fixedly connected with one end of the nut column 5 far away from the second rotating shaft 4, the piston 6 is connected with the inner wall of the first inner cavity 11 in a sliding and sealing way, the first inner cavity 11 is communicated with the second inner cavity 12 through a first through hole 13, a first sealed cavity is formed among the piston 6, the first inner cavity 11 and the push rod 8, lubricating grease is filled in the first sealing cavity, one end of the first spiral spring 7 is fixedly connected with the side wall of the first inner cavity 11 far away from the second inner cavity 12, the other end of the first spiral spring 7 is fixedly connected with one end of the push rod 8, one end of the push rod 8 is connected with the inner wall of the first through hole 13 in a sliding and sealing manner, one end of the first rotating shaft 2 extends into the second inner cavity 12 and is provided with a clamping groove matched with the other end of the push rod 8, and the second rotating shaft 4 is made of fusible alloy. By filling the first sealing chamber with grease, it can be ensured that the piston 6 slides smoothly along the side wall of the first inner cavity 11 and the push rod 8 along the inner wall of the first through hole 13.
One end of the second rotating shaft 4 is rotatably connected with the side wall, far away from the cabinet door 3, of the first inner cavity 11, the other end of the second rotating shaft 4 is fixedly connected with one end of the connecting shaft 34, the other end of the connecting shaft 34 extends into the first inner cavity 11 and is in threaded connection with the nut column 5, one end of the nut column 5 is fixedly connected with the piston 6, and therefore the connecting shaft 34 is driven to rotate by rotating the second rotating shaft 4, and the piston 6 is driven to move back and forth along the side wall of the first inner cavity 11. And first coil spring 7 set up at the lateral wall of first inner chamber 11 with between the one end of push rod 8, the one end of push rod 8 and the inner wall sliding seal of first through-hole 13 are connected, the one end of first pivot 2 be equipped with the other end assorted draw-in groove of push rod 8, it has lubricating grease to fill in the first sealed cavity, through drive piston 6 along the lateral wall round trip movement of first inner chamber 11, can make push rod 8 slide from top to bottom along the inner wall of first through-hole 13, and then make push rod 8's other end card go into among the draw-in groove or follow break away from in the draw-in groove to prescribe a limit to the position of first pivot 2 and cabinet door 3, make things convenient for the technical staff to open cabinet door 3, clean and maintain the inside electrical component of high voltage electric power electrical distribution cabinet.
When the other end of the push rod 8 is clamped into the clamping groove, the first spiral spring 7 is in a stretching state, and the elastic force of the first spiral spring can enable the push rod 8 to keep a trend of moving towards the first inner cavity 11. When the second rotating shaft 4 is rotated and the nut stud 5 and the piston 6 are driven to move in a direction away from the first spiral spring 7, the push rod 8 moves towards the first inner cavity 11 under the elastic force of the first spiral spring 7, and the other end of the push rod 8 is separated from the clamping groove. At this moment, open cabinet door 3 to certain angle to rotate first rotation once more, the drive nut post 5 and piston 6 toward being close to first coil spring 7 direction removes, through lubricating grease drive push rod 8 in the first sealed cavity removes toward second inner chamber 12 direction, and then makes push rod 8's the other end card go into in the draw-in groove, can prescribe a limit to the position of cabinet door 3, make things convenient for the technical staff to clean or maintain operations such as change to the inside electrical component of high voltage electricity electrical power distribution cabinet.
When the other end of the push rod 8 is clamped into the clamping groove or separated from the clamping groove, the first spiral spring 7 is in a stretching state all the time. When the nut column 5 and the piston 6 are driven to move away from the first spiral spring 7 by rotating the second rotating shaft 4, the push rod 8 always keeps a trend of moving towards the first inner cavity 11 under the elastic force action of the first spiral spring 7, so that the push rod 8 can be smoothly separated from the clamping groove to open the cabinet door 3.
In addition, the second rotating shaft 4 is made of fusible alloy, when the temperature of the power distribution cabinet is higher than the melting temperature of the second rotating shaft 4, the second rotating shaft 4 is melted, the connecting shaft 34, the second rotating shaft 4 and the nut column 5 do not limit the position of the piston 6 any more, and the push rod 8 can be separated from the clamping groove under the elastic force action of the first spiral spring 7. So, can avoid when block terminal high temperature or when the conflagration breaks out, need not through rotating second pivot 4, can directly open cabinet door 3 in order to carry out the radiating operation to the switch board, the switch board cabinet door 3 of perhaps opening closes, and isolated cabinet body 1 inside circulation of air is so that inside flame oxygen deficiency extinguishes, and then reaches save time, improves work efficiency's purpose.
As shown in fig. 3, the high voltage power electrical distribution cabinet further includes a lock, the lock includes an inner lock cylinder 14, an outer lock cylinder 15, a second spiral spring 16, an outer pin 17 and an inner pin 18, the lock is installed in a side wall of the first inner cavity 11 away from the cabinet door 3, one end of the second rotating shaft 4 is rotatably connected with the side wall of the first inner cavity 11 away from the cabinet door 3 through the inner lock cylinder 14, at least one outer pin hole 19 is provided in the outer lock cylinder 15, an inner pin hole 20 matched with the outer pin hole 19 is provided in the inner lock cylinder 14, the inner lock cylinder 14 is sleeved in the outer lock cylinder 15, the second spiral spring 16 and the outer pin 17 are installed in the outer pin hole 19, one end of the second spiral spring 16 is in contact with the side wall of the outer pin hole 19 away from the inner lock cylinder 14, and the other end of the second spiral spring 16 is in contact with one end of the outer pin 17, the inner pin 18 is mounted in the inner pin bore 20. The high-voltage power electrical power distribution cabinet further comprises a key matched with the lock. Utilize key and tool to lock, can close cabinet door 3, prevent that non-technical personnel from opening the switch board at will, improve the security performance of switch board. The lockset is arranged on the side wall of the cabinet door 3 far away from the first cavity, the structure is ingenious and simple, and the angle position of the cabinet door 3 can be well locked.
The specific sizes of the inner lock cylinder 14, the outer lock cylinder 15, the second spiral spring 16, the outer pin 17, the inner pin 18 and the key are conventional technical means in the field, and can be set by those skilled in the art as required, so that detailed description is omitted here.
In this embodiment, the melting temperature of the second rotating shaft 4 is between 65 degrees celsius and 80 degrees celsius.
In this embodiment, the nut post 5 is a press-riveting nut post 5, and the clamping groove is a regular hexagon. In this way, by rotating the first rotating shaft 2, the nut column 5 and the piston 6 are driven to move toward the first coil spring 7, and then the other end of the push rod 8 is driven to be inserted into the slot, so that the cabinet door 3 can be limited to three angles of 0 degree, 60 degrees, 120 degrees and 180 degrees.
In this embodiment, a switch handle is disposed on the cabinet door 3 to facilitate the opening and closing of the cabinet door 3 by a technician.
In this embodiment, the tool to lock adopts aluminum alloy material to make to alleviate the weight of whole switch board, make things convenient for technical staff to remove the transport to the switch board.
In this embodiment, the bottom fixed mounting of the cabinet body 1 has rubber pad foot to prevent the high voltage power electrical power distribution cabinet slides, reduces the vibrations that high voltage power electrical power distribution cabinet received.
Example two:
as shown in fig. 1 and fig. 2, a high voltage power electrical distribution cabinet includes a cabinet body 1, a first rotating shaft 2 and a cabinet door 3, wherein an inward protruding edge 9 is disposed on one side of an opening of the cabinet body 1, the protruding edge 9 is provided with a slot 10, the cabinet door 3 is rotatably connected to the slot 10 through the first rotating shaft 2, the high voltage power electrical distribution cabinet further includes a second rotating shaft 4, a connecting shaft 34, a nut column 5, a first spiral spring 7, a piston 6 and a push rod 8, a first inner cavity 11 and a second inner cavity 12 are disposed in the protruding edge 9, one end of the second rotating shaft 4 is rotatably connected to a side wall of the first inner cavity 11 away from the cabinet door 3, the other end of the second rotating shaft 4 is fixedly connected to one end of the connecting shaft 34, and the other end of the connecting shaft 34 extends into the first inner cavity 11 and is in threaded connection with the nut column 5, the piston 6 is fixedly connected with one end of the nut column 5 far away from the second rotating shaft 4, the piston 6 is connected with the inner wall of the first inner cavity 11 in a sliding and sealing way, the first inner cavity 11 is communicated with the second inner cavity 12 through a first through hole 13, a first sealed cavity is formed among the piston 6, the first inner cavity 11 and the push rod 8, lubricating grease is filled in the first sealing cavity, one end of the first spiral spring 7 is fixedly connected with the side wall of the first inner cavity 11 far away from the second inner cavity 12, the other end of the first spiral spring 7 is fixedly connected with one end of the push rod 8, one end of the push rod 8 is connected with the inner wall of the first through hole 13 in a sliding and sealing manner, one end of the first rotating shaft 2 extends into the second inner cavity 12 and is provided with a clamping groove matched with the other end of the push rod 8, and the second rotating shaft 4 is made of fusible alloy. By filling the first sealing chamber with grease, it can be ensured that the piston 6 slides smoothly along the side wall of the first inner cavity 11 and the push rod 8 along the inner wall of the first through hole 13.
One end of the second rotating shaft 4 is rotatably connected with the side wall, far away from the cabinet door 3, of the first inner cavity 11, the other end of the second rotating shaft 4 is fixedly connected with one end of the connecting shaft 34, the other end of the connecting shaft 34 extends into the first inner cavity 11 and is in threaded connection with the nut column 5, one end of the nut column 5 is fixedly connected with the piston 6, and therefore the connecting shaft 34 is driven to rotate by rotating the second rotating shaft 4, and the piston 6 is driven to move back and forth along the side wall of the first inner cavity 11. And first coil spring 7 set up at the lateral wall of first inner chamber 11 with between the one end of push rod 8, the one end of push rod 8 and the inner wall sliding seal of first through-hole 13 are connected, the one end of first pivot 2 be equipped with the other end assorted draw-in groove of push rod 8, it has lubricating grease to fill in the first sealed cavity, through drive piston 6 along the lateral wall round trip movement of first inner chamber 11, can make push rod 8 slide from top to bottom along the inner wall of first through-hole 13, and then make push rod 8's other end card go into among the draw-in groove or follow break away from in the draw-in groove to prescribe a limit to the position of first pivot 2 and cabinet door 3, make things convenient for the technical staff to open cabinet door 3, clean and maintain the inside electrical component of high voltage electric power electrical distribution cabinet.
When the other end of the push rod 8 is clamped into the clamping groove, the first spiral spring 7 is in a stretching state, and the elastic force of the first spiral spring can enable the push rod 8 to keep a trend of moving towards the first inner cavity 11. When the second rotating shaft 4 is rotated and the nut stud 5 and the piston 6 are driven to move in a direction away from the first spiral spring 7, the push rod 8 moves towards the first inner cavity 11 under the elastic force of the first spiral spring 7, and the other end of the push rod 8 is separated from the clamping groove. At this moment, open cabinet door 3 to certain angle to rotate first rotation once more, the drive nut post 5 and piston 6 toward being close to first coil spring 7 direction removes, through lubricating grease drive push rod 8 in the first sealed cavity removes toward second inner chamber 12 direction, and then makes push rod 8's the other end card go into in the draw-in groove, can prescribe a limit to the position of cabinet door 3, make things convenient for the technical staff to clean or maintain operations such as change to the inside electrical component of high voltage electricity electrical power distribution cabinet.
When the other end of the push rod 8 is clamped into the clamping groove or separated from the clamping groove, the first spiral spring 7 is in a stretching state all the time. When the nut column 5 and the piston 6 are driven to move away from the first spiral spring 7 by rotating the second rotating shaft 4, the push rod 8 always keeps a trend of moving towards the first inner cavity 11 under the elastic force action of the first spiral spring 7, so that the push rod 8 can be smoothly separated from the clamping groove to open the cabinet door 3.
In addition, the second rotating shaft 4 is made of fusible alloy, when the temperature of the power distribution cabinet is higher than the melting temperature of the second rotating shaft 4, the second rotating shaft 4 is melted, the connecting shaft 34, the second rotating shaft 4 and the nut column 5 do not limit the position of the piston 6 any more, and the push rod 8 can be separated from the clamping groove under the elastic force action of the first spiral spring 7. So, can avoid when block terminal high temperature or when the conflagration breaks out, need not through rotating second pivot 4, can directly open cabinet door 3 in order to carry out the radiating operation to the switch board, the switch board cabinet door 3 of perhaps opening closes, and isolated cabinet body 1 inside circulation of air is so that inside flame oxygen deficiency extinguishes, and then reaches save time, improves work efficiency's purpose.
As shown in fig. 3, the high voltage power electrical distribution cabinet further includes a lock, the lock includes an inner lock cylinder 14, an outer lock cylinder 15, a second spiral spring 16, an outer pin 17 and an inner pin 18, the lock is installed in a side wall of the first inner cavity 11 away from the cabinet door 3, one end of the second rotating shaft 4 is rotatably connected with the side wall of the first inner cavity 11 away from the cabinet door 3 through the inner lock cylinder 14, at least one outer pin hole 19 is provided in the outer lock cylinder 15, an inner pin hole 20 matched with the outer pin hole 19 is provided in the inner lock cylinder 14, the inner lock cylinder 14 is sleeved in the outer lock cylinder 15, the second spiral spring 16 and the outer pin 17 are installed in the outer pin hole 19, one end of the second spiral spring 16 is in contact with the side wall of the outer pin hole 19 away from the inner lock cylinder 14, and the other end of the second spiral spring 16 is in contact with one end of the outer pin 17, the inner pin 18 is mounted in the inner pin bore 20. The high-voltage power electrical power distribution cabinet further comprises a key matched with the lock. Utilize key and tool to lock, can close cabinet door 3, prevent that non-technical personnel from opening the switch board at will, improve the security performance of switch board. The lockset is arranged on the side wall of the cabinet door 3 far away from the first cavity, the structure is ingenious and simple, and the angle position of the cabinet door 3 can be well locked.
The specific sizes of the inner lock cylinder 14, the outer lock cylinder 15, the second spiral spring 16, the outer pin 17, the inner pin 18 and the key are conventional technical means in the field, and can be set by those skilled in the art as required, so that detailed description is omitted here.
In this embodiment, the melting temperature of the second rotating shaft 4 is between 65 degrees celsius and 80 degrees celsius.
In this embodiment, the nut post 5 is a press-riveting nut post 5, and the clamping groove is a regular hexagon. In this way, by rotating the first rotating shaft 2, the nut column 5 and the piston 6 are driven to move toward the first coil spring 7, and then the other end of the push rod 8 is driven to be inserted into the slot, so that the cabinet door 3 can be limited to three angles of 0 degree, 60 degrees, 120 degrees and 180 degrees.
In this embodiment, a switch handle is disposed on the cabinet door 3 to facilitate the opening and closing of the cabinet door 3 by a technician.
In this embodiment, the tool to lock adopts aluminum alloy material to make to alleviate the weight of whole switch board, make things convenient for technical staff to remove the transport to the switch board.
In this embodiment, the bottom fixed mounting of the cabinet body 1 has rubber pad foot to prevent the high voltage power electrical power distribution cabinet slides, reduces the vibrations that high voltage power electrical power distribution cabinet received.
In one embodiment, the push rod 8 is made of fusible alloy, the melting temperature of the push rod 8 is between 80 and 100 degrees, when an electric circuit fault occurs inside the high-voltage power electric power distribution cabinet to cause a fire disaster or the heat dissipation inside the power distribution cabinet is poor to cause the temperature inside the cabinet body 1 to be too high, and the temperature of the cabinet body 1 is higher than the melting temperature of the push rod 8, the push rod 8 is heated and melted. At this moment, push rod 8 no longer restricts the position of first pivot 2 and cabinet door 3, and technical staff can open cabinet door 3 very conveniently as required and carry out ventilation cooling to the switch board, perhaps close cabinet door 3 to reach and utilize the isolated switch board inside air of cabinet door 3 and make the mesh that the inside flame of the cabinet body 1 extinguishes.
Second pivot 4 and push rod 8 are made by fusible alloy material, just the melting temperature of second pivot 4 is between 65 degrees centigrade to 80 degrees centigrade, the melting temperature of push rod 8 is between 80 degrees centigrade to 100 degrees centigrade, push rod 8 with the cooperation of second pivot 4 is used, can play a dual protection's effect. When the second rotating shaft 4 is too high in temperature of the power distribution cabinet or has a fire hazard and the temperature reaches 65 degrees and cannot be melted, or the second rotating shaft 4 is already melted, but the elasticity of the first spiral spring 7 is weakened and is not enough to push the piston 6 to move so as to separate the push rod 8 from the clamping groove, if the temperature of the power distribution cabinet continues to rise, the push rod 8 is heated and melted, and the push rod 8 does not limit the rotation of the cabinet door 3 any more. So, the push rod 8 of being made by the fusible alloy material provides the second for the switch board in essence and protects again, can further ensure when the switch board high temperature or conflagration breaing out, need not to rotate second pivot 4 and can open or close cabinet door 3 fast.
Example three:
as shown in fig. 1 and fig. 2, a high voltage power electrical distribution cabinet includes a cabinet body 1, a first rotating shaft 2 and a cabinet door 3, wherein an inward protruding edge 9 is disposed on one side of an opening of the cabinet body 1, the protruding edge 9 is provided with a slot 10, the cabinet door 3 is rotatably connected to the slot 10 through the first rotating shaft 2, the high voltage power electrical distribution cabinet further includes a second rotating shaft 4, a connecting shaft 34, a nut column 5, a first spiral spring 7, a piston 6 and a push rod 8, a first inner cavity 11 and a second inner cavity 12 are disposed in the protruding edge 9, one end of the second rotating shaft 4 is rotatably connected to a side wall of the first inner cavity 11 away from the cabinet door 3, the other end of the second rotating shaft 4 is fixedly connected to one end of the connecting shaft 34, and the other end of the connecting shaft 34 extends into the first inner cavity 11 and is in threaded connection with the nut column 5, the piston 6 is fixedly connected with one end of the nut column 5 far away from the second rotating shaft 4, the piston 6 is connected with the inner wall of the first inner cavity 11 in a sliding and sealing way, the first inner cavity 11 is communicated with the second inner cavity 12 through a first through hole 13, a first sealed cavity is formed among the piston 6, the first inner cavity 11 and the push rod 8, lubricating grease is filled in the first sealing cavity, one end of the first spiral spring 7 is fixedly connected with the side wall of the first inner cavity 11 far away from the second inner cavity 12, the other end of the first spiral spring 7 is fixedly connected with one end of the push rod 8, one end of the push rod 8 is connected with the inner wall of the first through hole 13 in a sliding and sealing manner, one end of the first rotating shaft 2 extends into the second inner cavity 12 and is provided with a clamping groove matched with the other end of the push rod 8, and the second rotating shaft 4 is made of fusible alloy. By filling the first sealing chamber with grease, it can be ensured that the piston 6 slides smoothly along the side wall of the first inner cavity 11 and the push rod 8 along the inner wall of the first through hole 13.
One end of the second rotating shaft 4 is rotatably connected with the side wall, far away from the cabinet door 3, of the first inner cavity 11, the other end of the second rotating shaft 4 is fixedly connected with one end of the connecting shaft 34, the other end of the connecting shaft 34 extends into the first inner cavity 11 and is in threaded connection with the nut column 5, one end of the nut column 5 is fixedly connected with the piston 6, and therefore the connecting shaft 34 is driven to rotate by rotating the second rotating shaft 4, and the piston 6 is driven to move back and forth along the side wall of the first inner cavity 11. And first coil spring 7 set up at the lateral wall of first inner chamber 11 with between the one end of push rod 8, the one end of push rod 8 and the inner wall sliding seal of first through-hole 13 are connected, the one end of first pivot 2 be equipped with the other end assorted draw-in groove of push rod 8, it has lubricating grease to fill in the first sealed cavity, through drive piston 6 along the lateral wall round trip movement of first inner chamber 11, can make push rod 8 slide from top to bottom along the inner wall of first through-hole 13, and then make push rod 8's other end card go into among the draw-in groove or follow break away from in the draw-in groove to prescribe a limit to the position of first pivot 2 and cabinet door 3, make things convenient for the technical staff to open cabinet door 3, clean and maintain the inside electrical component of high voltage electric power electrical distribution cabinet.
When the other end of the push rod 8 is clamped into the clamping groove, the first spiral spring 7 is in a stretching state, and the elastic force of the first spiral spring can enable the push rod 8 to keep a trend of moving towards the first inner cavity 11. When the second rotating shaft 4 is rotated and the nut stud 5 and the piston 6 are driven to move in a direction away from the first spiral spring 7, the push rod 8 moves towards the first inner cavity 11 under the elastic force of the first spiral spring 7, and the other end of the push rod 8 is separated from the clamping groove. At this moment, open cabinet door 3 to certain angle to rotate first rotation once more, the drive nut post 5 and piston 6 toward being close to first coil spring 7 direction removes, through lubricating grease drive push rod 8 in the first sealed cavity removes toward second inner chamber 12 direction, and then makes push rod 8's the other end card go into in the draw-in groove, can prescribe a limit to the position of cabinet door 3, make things convenient for the technical staff to clean or maintain operations such as change to the inside electrical component of high voltage electricity electrical power distribution cabinet.
When the other end of the push rod 8 is clamped into the clamping groove or separated from the clamping groove, the first spiral spring 7 is in a stretching state all the time. When the nut column 5 and the piston 6 are driven to move away from the first spiral spring 7 by rotating the second rotating shaft 4, the push rod 8 always keeps a trend of moving towards the first inner cavity 11 under the elastic force action of the first spiral spring 7, so that the push rod 8 can be smoothly separated from the clamping groove to open the cabinet door 3.
In addition, the second rotating shaft 4 is made of fusible alloy, when the temperature of the power distribution cabinet is higher than the melting temperature of the second rotating shaft 4, the second rotating shaft 4 is melted, the connecting shaft 34, the second rotating shaft 4 and the nut column 5 do not limit the position of the piston 6 any more, and the push rod 8 can be separated from the clamping groove under the elastic force action of the first spiral spring 7. So, can avoid when block terminal high temperature or when the conflagration breaks out, need not through rotating second pivot 4, can directly open cabinet door 3 in order to carry out the radiating operation to the switch board, the switch board cabinet door 3 of perhaps opening closes, and isolated cabinet body 1 inside circulation of air is so that inside flame oxygen deficiency extinguishes, and then reaches save time, improves work efficiency's purpose.
As shown in fig. 3, the high-voltage power electrical distribution cabinet further includes a lock, the lock includes an inner lock cylinder 14, an outer lock cylinder 15, a second spiral spring 16, an outer pin 17 and an inner pin 18, the lock is installed in a side wall of the first inner cavity 11 far from the cabinet door 3, one end of the second rotating shaft 4 is rotatably connected with the side wall of the first inner cavity 11 far from the cabinet door 3 through the inner lock cylinder 14, at least one outer pin hole 19 is provided in the outer lock cylinder 15, an inner pin hole 20 matched with the outer pin hole 19 is provided in the inner lock cylinder 14, the inner lock cylinder 14 is sleeved in the outer lock cylinder 15, the second spiral spring 16 and the outer pin 17 are installed in the outer pin hole 19, one end of the second spiral spring 16 is in contact with the side wall of the outer pin hole 19 far from the inner lock cylinder 14, and the other end of the second spiral spring 16 is in contact with one end of the outer pin 17, the inner pin 18 is mounted in the inner pin bore 20. The high-voltage power electrical power distribution cabinet further comprises a key matched with the lock. Utilize key and tool to lock, can close cabinet door 3, prevent that non-technical personnel from opening the switch board at will, improve the security performance of switch board. The lockset is arranged on the side wall of the cabinet door 3 far away from the first cavity, the structure is ingenious and simple, and the angle position of the cabinet door 3 can be well locked.
The specific sizes of the inner lock cylinder 14, the outer lock cylinder 15, the second spiral spring 16, the outer pin 17, the inner pin 18 and the key are conventional technical means in the field, and can be set by those skilled in the art as required, so that detailed description is omitted here.
In this embodiment, the melting temperature of the second rotating shaft 4 is between 65 degrees celsius and 80 degrees celsius.
In this embodiment, the nut post 5 is a press-riveting nut post 5, and the clamping groove is a regular hexagon. In this way, by rotating the first rotating shaft 2, the nut column 5 and the piston 6 are driven to move toward the first coil spring 7, and then the other end of the push rod 8 is driven to be inserted into the slot, so that the cabinet door 3 can be limited to three angles of 0 degree, 60 degrees, 120 degrees and 180 degrees.
In this embodiment, a switch handle is disposed on the cabinet door 3 to facilitate the opening and closing of the cabinet door 3 by a technician.
In this embodiment, the tool to lock adopts aluminum alloy material to make to alleviate the weight of whole switch board, make things convenient for technical staff to remove the transport to the switch board.
In this embodiment, the bottom fixed mounting of the cabinet body 1 has the rubber pad foot to prevent high voltage power electric power distribution cabinet moves, reduces the vibrations that high voltage power electric power distribution cabinet received.
In one embodiment, the push rod 8 is made of fusible alloy, the melting temperature of the push rod 8 is between 80 and 100 degrees, when an electric circuit fault occurs inside the high-voltage power electric power distribution cabinet to cause a fire disaster or the heat dissipation inside the power distribution cabinet is poor to cause the temperature inside the cabinet body 1 to be too high, and the temperature of the cabinet body 1 is higher than the melting temperature of the push rod 8, the push rod 8 is heated and melted. At this moment, push rod 8 no longer restricts the position of first pivot 2 and cabinet door 3, and technical staff can open cabinet door 3 very conveniently as required and carry out ventilation cooling to the switch board, perhaps close cabinet door 3 to reach and utilize the isolated switch board inside air of cabinet door 3 and make the mesh that the inside flame of the cabinet body 1 extinguishes.
Second pivot 4 and push rod 8 are made by fusible alloy material, just the melting temperature of second pivot 4 is between 65 degrees centigrade to 80 degrees centigrade, the melting temperature of push rod 8 is between 80 degrees centigrade to 90 degrees centigrade, push rod 8 with the cooperation of second pivot 4 is used, can play a dual protection's effect. When the second rotating shaft 4 is too high in temperature of the power distribution cabinet or has a fire hazard and the temperature reaches 65 degrees and cannot be melted, or the second rotating shaft 4 is already melted, but the elasticity of the first spiral spring 7 is weakened and is not enough to push the piston 6 to move so as to separate the push rod 8 from the clamping groove, if the temperature of the power distribution cabinet continues to rise, the push rod 8 is heated and melted, and the push rod 8 does not limit the rotation of the cabinet door 3 any more. So, the push rod 8 of being made by the fusible alloy material provides the second for the switch board in essence and protects again, can further ensure when the switch board high temperature or conflagration breaing out, need not to rotate second pivot 4 and can open or close cabinet door 3 fast.
As shown in fig. 4, the high-voltage power electrical distribution cabinet further includes a memory spring 21, a spike portion 22 and an elastic film 23, a second through hole 24 is further disposed in the protruding edge 9, one end of the second through hole 24 is communicated with the slot 10, the other end of the second through hole 24 is communicated with the side wall of the first through hole 13, the peripheral edge of the elastic film 23 is hermetically connected with the side wall of the other end of the second through hole 24, one end of the memory spring 21 is fixedly connected with the side wall of the second through hole 24 far away from the first through hole 13, the other end of the memory spring 21 is fixedly connected with one end of the spike portion 22, and the other end of the spike portion 22 is opposite to the elastic film 23.
Specifically, when the memory spring 21 is heated and elongated, the spike 22 may pierce the elastic membrane 23. The memory spring 21 is made of a CuZnAl memory alloy wire by winding and has a two-way memory effect, and the expansion and contraction temperature is between 90 ℃ and 95 ℃. That is, when the memory spring 21 is heated and the temperature is higher than the stretching temperature, the length thereof is increased, and the sharp portion 22 is pushed to approach the elastic film 23 and pierce the elastic film 23. At this time, the lubricating grease in the first sealing chamber flows into the slot 10 from the broken elastic membrane 23 through the first through hole 13 and the second through hole 24, and the push rod 8 is separated from the slot under the elastic force of the first spiral spring 7. Through setting up memory spring 21, spine portion 22 and elastic film 23, when the switch board high temperature perhaps conflagration breaks out, need not to rotate interior lock core 14 and second pivot 4 through the key, can dispel the heat or close switch board cabinet door 3 that will open in order to open switch board cabinet door 3 to reach and utilize the isolated switch board inside air of cabinet door 3 and make the mesh that the inside flame of the cabinet body 1 extinguishes.
In addition, use for a long time and the tool to lock rusts at the switch board, when unable through the key open switch board, can heat the bulge border 9 of switch board with the relative part of fluting 10 for memory spring 21 is heated the extension, and drive spine portion 22 punctures elastic film 23, and then makes push rod 8 break away from the draw-in groove, with open closed switch board, its simple structure thinks about ingeniously, has very big popularization nature. Of course, it is also possible to open the closed switch cabinet by heating a part of the raised edge, so that the second rotating shaft 4 or the push rod 8 melts, and contacts the limit of the push rod 8 on the first rotating shaft 2.
The memory spring 21, the spine portion 22 and the elastic film 23 are arranged, so that a third protection can be provided for the power distribution cabinet. When the temperature of the power distribution cabinet reaches the stretching temperature of the memory spring 21, the second rotating shaft 4 is already melted, the push rod 8 is not melted, the elasticity of the first spiral spring 7 is weakened and is not enough to push the piston 6 to move through the lubricating grease in the first sealing chamber so that the push rod 8 is separated from the clamping groove, if the temperature of the power distribution cabinet continues to rise, the memory spring 21 is heated and extended, the spine portion 22 pierces the elastic film 23, the lubricating grease in the first sealing chamber flows in, and the limiting effect of the lubricating grease in the first sealing chamber on the movement of the push rod 8 is reduced. Under the action of the elastic force of the first spiral spring 7, the push rod 8 is separated from the clamping groove, and the push rod 8 does not limit the rotation of the cabinet door 3 any more. Thus, the memory spring 21, the spike portion 22 and the elastic film 23 substantially provide a third protection for the power distribution cabinet, so that the cabinet door 3 can be quickly opened or closed without rotating the second rotating shaft 4 when the temperature of the power distribution cabinet is too high or a fire disaster occurs.
In this embodiment, the spine 22 is a cone, the bottom of which is fixedly connected to the other end of the memory spring 21, and the diameter of the bottom of the cone is smaller than that of the elastic membrane 23. Thus, after the spike 22 pierces the elastic membrane 23, the grease in the second sealed chamber can smoothly flow into the second through hole 24.
In this embodiment, the surface of the cone is provided with a plurality of notches parallel to the generatrix thereof. The provision of a plurality of notches in the surface of the cone allows grease in the second seal chamber to flow more rapidly into the second through-hole 24.
Example four:
as shown in fig. 1 and fig. 2, a high voltage power electrical distribution cabinet includes a cabinet body 1, a first rotating shaft 2 and a cabinet door 3, wherein an inward protruding edge 9 is disposed on one side of an opening of the cabinet body 1, the protruding edge 9 is provided with a slot 10, the cabinet door 3 is rotatably connected to the slot 10 through the first rotating shaft 2, the high voltage power electrical distribution cabinet further includes a second rotating shaft 4, a connecting shaft 34, a nut column 5, a first spiral spring 7, a piston 6 and a push rod 8, a first inner cavity 11 and a second inner cavity 12 are disposed in the protruding edge 9, one end of the second rotating shaft 4 is rotatably connected to a side wall of the first inner cavity 11 away from the cabinet door 3, the other end of the second rotating shaft 4 is fixedly connected to one end of the connecting shaft 34, and the other end of the connecting shaft 34 extends into the first inner cavity 11 and is in threaded connection with the nut column 5, the piston 6 is fixedly connected with one end of the nut column 5 far away from the second rotating shaft 4, the piston 6 is connected with the inner wall of the first inner cavity 11 in a sliding and sealing way, the first inner cavity 11 is communicated with the second inner cavity 12 through a first through hole 13, a first sealed cavity is formed among the piston 6, the first inner cavity 11 and the push rod 8, lubricating grease is filled in the first sealing cavity, one end of the first spiral spring 7 is fixedly connected with the side wall of the first inner cavity 11 far away from the second inner cavity 12, the other end of the first spiral spring 7 is fixedly connected with one end of the push rod 8, one end of the push rod 8 is connected with the inner wall of the first through hole 13 in a sliding and sealing manner, one end of the first rotating shaft 2 extends into the second inner cavity 12 and is provided with a clamping groove matched with the other end of the push rod 8, and the second rotating shaft 4 is made of fusible alloy. By filling the first sealing chamber with grease, it can be ensured that the piston 6 slides smoothly along the side wall of the first inner cavity 11 and the push rod 8 along the inner wall of the first through hole 13.
One end of the second rotating shaft 4 is rotatably connected with the side wall, far away from the cabinet door 3, of the first inner cavity 11, the other end of the second rotating shaft 4 is fixedly connected with one end of the connecting shaft 34, the other end of the connecting shaft 34 extends into the first inner cavity 11 and is in threaded connection with the nut column 5, one end of the nut column 5 is fixedly connected with the piston 6, and therefore the connecting shaft 34 is driven to rotate by rotating the second rotating shaft 4, and the piston 6 is driven to move back and forth along the side wall of the first inner cavity 11. And first coil spring 7 set up at the lateral wall of first inner chamber 11 with between the one end of push rod 8, the one end of push rod 8 and the inner wall sliding seal of first through-hole 13 are connected, the one end of first pivot 2 be equipped with the other end assorted draw-in groove of push rod 8, it has lubricating grease to fill in the first sealed cavity, through drive piston 6 along the lateral wall round trip movement of first inner chamber 11, can make push rod 8 slide from top to bottom along the inner wall of first through-hole 13, and then make push rod 8's other end card go into among the draw-in groove or follow break away from in the draw-in groove to prescribe a limit to the position of first pivot 2 and cabinet door 3, make things convenient for the technical staff to open cabinet door 3, clean and maintain the inside electrical component of high voltage electric power electrical distribution cabinet.
When the other end of the push rod 8 is clamped into the clamping groove, the first spiral spring 7 is in a stretching state, and the elastic force of the first spiral spring can enable the push rod 8 to keep a trend of moving towards the first inner cavity 11. When the second rotating shaft 4 is rotated and the nut stud 5 and the piston 6 are driven to move in a direction away from the first spiral spring 7, the push rod 8 moves towards the first inner cavity 11 under the elastic force of the first spiral spring 7, and the other end of the push rod 8 is separated from the clamping groove. At this moment, open cabinet door 3 to certain angle to rotate first rotation once more, the drive nut post 5 and piston 6 toward being close to first coil spring 7 direction removes, through lubricating grease drive push rod 8 in the first sealed cavity removes toward second inner chamber 12 direction, and then makes push rod 8's the other end card go into in the draw-in groove, can prescribe a limit to the position of cabinet door 3, make things convenient for the technical staff to clean or maintain operations such as change to the inside electrical component of high voltage electricity electrical power distribution cabinet.
When the other end of the push rod 8 is clamped into the clamping groove or separated from the clamping groove, the first spiral spring 7 is in a stretching state all the time. When the nut column 5 and the piston 6 are driven to move away from the first spiral spring 7 by rotating the second rotating shaft 4, the push rod 8 always keeps a trend of moving towards the first inner cavity 11 under the elastic force action of the first spiral spring 7, so that the push rod 8 can be smoothly separated from the clamping groove to open the cabinet door 3.
In addition, the second rotating shaft 4 is made of fusible alloy, when the temperature of the power distribution cabinet is higher than the melting temperature of the second rotating shaft 4, the second rotating shaft 4 is melted, the connecting shaft 34, the second rotating shaft 4 and the nut column 5 do not limit the position of the piston 6 any more, and the push rod 8 can be separated from the clamping groove under the elastic force action of the first spiral spring 7. So, can avoid when block terminal high temperature or when the conflagration breaks out, need not through rotating second pivot 4, can directly open cabinet door 3 in order to carry out the radiating operation to the switch board, the switch board cabinet door 3 of perhaps opening closes, and isolated cabinet body 1 inside circulation of air is so that inside flame oxygen deficiency extinguishes, and then reaches save time, improves work efficiency's purpose.
As shown in fig. 3, the high-voltage power electrical distribution cabinet further includes a lock, the lock includes an inner lock cylinder 14, an outer lock cylinder 15, a second spiral spring 16, an outer pin 17 and an inner pin 18, the lock is installed in a side wall of the first inner cavity 11 far from the cabinet door 3, one end of the second rotating shaft 4 is rotatably connected with the side wall of the first inner cavity 11 far from the cabinet door 3 through the inner lock cylinder 14, at least one outer pin hole 19 is provided in the outer lock cylinder 15, an inner pin hole 20 matched with the outer pin hole 19 is provided in the inner lock cylinder 14, the inner lock cylinder 14 is sleeved in the outer lock cylinder 15, the second spiral spring 16 and the outer pin 17 are installed in the outer pin hole 19, one end of the second spiral spring 16 is in contact with the side wall of the outer pin hole 19 far from the inner lock cylinder 14, and the other end of the second spiral spring 16 is in contact with one end of the outer pin 17, the inner pin 18 is mounted in the inner pin bore 20. The high-voltage power electrical power distribution cabinet further comprises a key matched with the lock. Utilize key and tool to lock, can close cabinet door 3, prevent that non-technical personnel from opening the switch board at will, improve the security performance of switch board. The lockset is arranged on the side wall of the cabinet door 3 far away from the first cavity, the structure is ingenious and simple, and the angle position of the cabinet door 3 can be well locked.
The specific sizes of the inner lock cylinder 14, the outer lock cylinder 15, the second spiral spring 16, the outer pin 17, the inner pin 18 and the key are conventional technical means in the field, and can be set by those skilled in the art as required, so that detailed description is omitted here.
In this embodiment, the melting temperature of the second rotating shaft 4 is between 65 degrees celsius and 80 degrees celsius.
In this embodiment, the nut post 5 is a press-riveting nut post 5, and the clamping groove is a regular hexagon. In this way, by rotating the first rotating shaft 2, the nut column 5 and the piston 6 are driven to move toward the first coil spring 7, and then the other end of the push rod 8 is driven to be inserted into the slot, so that the cabinet door 3 can be limited to three angles of 0 degree, 60 degrees, 120 degrees and 180 degrees.
In this embodiment, a switch handle is disposed on the cabinet door 3 to facilitate the opening and closing of the cabinet door 3 by a technician.
In this embodiment, the tool to lock adopts aluminum alloy material to make to alleviate the weight of whole switch board, make things convenient for technical staff to remove the transport to the switch board.
In this embodiment, the bottom fixed mounting of the cabinet body 1 has rubber pad foot to prevent the high voltage power electrical power distribution cabinet slides, reduces the vibrations that high voltage power electrical power distribution cabinet received.
In one embodiment, the push rod 8 is made of fusible alloy, the melting temperature of the push rod 8 is between 80 and 100 degrees, when an electric circuit fault occurs inside the high-voltage power electric power distribution cabinet to cause a fire disaster or the heat dissipation inside the power distribution cabinet is poor to cause the temperature inside the cabinet body 1 to be too high, and the temperature of the cabinet body 1 is higher than the melting temperature of the push rod 8, the push rod 8 is heated and melted. At this moment, push rod 8 no longer restricts the position of first pivot 2 and cabinet door 3, and technical staff can open cabinet door 3 very conveniently as required and carry out ventilation cooling to the switch board, perhaps close cabinet door 3 to reach and utilize the isolated switch board inside air of cabinet door 3 and make the mesh that the inside flame of the cabinet body 1 extinguishes.
Second pivot 4 and push rod 8 are made by fusible alloy material, just the melting temperature of second pivot 4 is between 65 degrees centigrade to 75 degrees centigrade, the melting temperature of push rod 8 is between 75 degrees centigrade to 85 degrees centigrade, push rod 8 with the cooperation of second pivot 4 is used, can play a dual protection's effect. When the second rotating shaft 4 is too high in temperature of the power distribution cabinet or has a fire hazard and the temperature reaches 65 degrees and cannot be melted, or the second rotating shaft 4 is already melted, but the elasticity of the first spiral spring 7 is weakened and is not enough to push the piston 6 to move so as to separate the push rod 8 from the clamping groove, if the temperature of the power distribution cabinet continues to rise, the push rod 8 is heated and melted, and the push rod 8 does not limit the rotation of the cabinet door 3 any more. So, the push rod 8 of being made by the fusible alloy material provides the second for the switch board in essence and protects again, can further ensure when the switch board high temperature or conflagration breaing out, need not to rotate second pivot 4 and can open or close cabinet door 3 fast.
As shown in fig. 4, the high-voltage power electrical distribution cabinet further includes a memory spring 21, a spike portion 22 and an elastic film 23, an L-shaped second through hole 24 is further provided in the protruding edge 9, one end of the second through hole 24 is communicated with the slot 10, the other end of the second through hole 24 is communicated with the side wall of the first through hole 13, the peripheral edge of the elastic film 23 is hermetically connected with the side wall of the other end of the second through hole 24, one end of the memory spring 21 is fixedly connected with the side wall of the second through hole 24 far away from the first through hole 13, the other end of the memory spring 21 is fixedly connected with one end of the spike portion 22, and the other end of the spike portion 22 faces the elastic film 23. Specifically, when the memory spring 21 is heated and elongated, the spike 22 may pierce the elastic membrane 23. The memory spring 21 is made of a CuZnAl memory alloy wire by winding and has a two-way memory effect, and the expansion and contraction temperature is between 85 ℃ and 120 ℃. That is, when the memory spring 21 is heated and the temperature is higher than the stretching temperature, the length thereof is increased, and the sharp portion 22 is pushed to approach the elastic film 23 and pierce the elastic film 23. At this time, the lubricating grease in the first sealing chamber flows into the slot 10 from the broken elastic membrane 23 through the first through hole 13 and the second through hole 24, and the push rod 8 is separated from the slot under the elastic force of the first spiral spring 7. Through setting up memory spring 21, spine portion 22 and elastic film 23, when the switch board high temperature perhaps conflagration breaks out, need not to rotate interior lock core 14 and second pivot 4 through the key, can dispel the heat or close switch board cabinet door 3 that will open in order to open switch board cabinet door 3 to reach and utilize the isolated switch board inside air of cabinet door 3 and make the mesh that the inside flame of the cabinet body 1 extinguishes.
In addition, use for a long time and the tool to lock rusts at the switch board, when unable through the key open switch board, can heat the bulge border 9 of switch board with the relative part of fluting 10 for memory spring 21 is heated the extension, and drive spine portion 22 punctures elastic film 23, and then makes push rod 8 break away from the draw-in groove, with open closed switch board, its simple structure thinks about ingeniously, has very big popularization nature. Of course, it is also possible to open the closed switch cabinet by heating a part of the raised edge, so that the second rotating shaft 4 or the push rod 8 melts, and contacts the limit of the push rod 8 on the first rotating shaft 2.
The memory spring 21, the spine portion 22 and the elastic film 23 are arranged, so that a third protection can be provided for the power distribution cabinet. When the temperature of the power distribution cabinet reaches the stretching temperature of the memory spring 21, the second rotating shaft 4 is already melted, the push rod 8 is not melted, the elasticity of the first spiral spring 7 is weakened and is not enough to push the piston 6 to move through the lubricating grease in the first sealing chamber so that the push rod 8 is separated from the clamping groove, if the temperature of the power distribution cabinet continues to rise, the memory spring 21 is heated and extended, the spine portion 22 pierces the elastic film 23, the lubricating grease in the first sealing chamber flows in, and the limiting effect of the lubricating grease in the first sealing chamber on the movement of the push rod 8 is reduced. Under the action of the elastic force of the first spiral spring 7, the push rod 8 is separated from the clamping groove, and the push rod 8 does not limit the rotation of the cabinet door 3 any more. Thus, the memory spring 21, the spike portion 22 and the elastic film 23 substantially provide a third protection for the power distribution cabinet, so that the cabinet door 3 can be quickly opened or closed without rotating the second rotating shaft 4 when the temperature of the power distribution cabinet is too high or a fire disaster occurs.
In this embodiment, the spine 22 is a cone, the bottom of which is fixedly connected to the other end of the memory spring 21, and the diameter of the bottom of the cone is smaller than that of the elastic membrane 23. Thus, after the spike 22 pierces the elastic membrane 23, the grease in the second sealed chamber can smoothly flow into the second through hole 24.
In this embodiment, the surface of the cone is provided with a plurality of notches parallel to the generatrix thereof. The provision of a plurality of notches in the surface of the cone allows grease in the second seal chamber to flow more rapidly into the second through-hole 24.
As shown in fig. 5 and fig. 6, in this embodiment, the high-voltage power electrical distribution cabinet further includes a first round bar 25, a push rod 26, a third spiral spring 27 and a rubber block 28, a third inner cavity 29 is further disposed in the protruding edge 9, a groove 30 is disposed on a side wall of the slot 10 away from the first rotating shaft 2, the rubber block 28 is connected to the groove 30 in a sliding manner, one end of the third inner cavity 29 is communicated with the groove 30, one end of the push rod 26 extends into the third inner cavity 29 and is connected to the side wall of the third inner cavity 29 in a sliding and sealing manner, the other end of the push rod 26 is fixedly connected to one end of the third spiral spring 27, the other end of the third spiral spring 27 is fixedly connected to a side surface of the rubber block 28 away from the first rotating shaft 2, the first round bar 25 is connected to a side wall of the third inner cavity 29 close to the piston 6 in a sliding and sealing manner, just the one end of first round bar 25 stretches into in the third inner chamber 29, the other end of first round bar 25 stretches into in the first inner chamber 11 and be located piston 6 with between the interior lock core 14, the peripheral surface of the one end of first round bar 25 is equipped with first stopper 31, form the sealed cavity of second between third inner chamber 29, first round bar 25 and the ejector pin 26, it has lubricating grease to fill in the sealed cavity of second. Specifically, when the push rod 8 is inserted into the slot and the piston 6 is separated from the first round bar 25, the first round bar 25 can be restored to the original position by the rubber block 28 and the third coil spring 27. The first stopper 31 is disposed to prevent one end of the first rod 25 from being located in the third cavity 29 all the time.
When the key is inserted into the internal cylinder 14 of the lock to unlock the lock, the piston 6 can push the first rod 25 to the third inner cavity 29 by rotating the internal cylinder 14 and the second rotating shaft 4, so that the nut column 5 and the piston 6 are close to the second rotating shaft 4 under the action of the second rotating shaft 4. During the process of moving the first round rod 25 to the third inner cavity 29, the first round rod 25 drives the push rod 26 and the third coil spring 27 to approach the first rotating shaft 2 through the lubricating grease in the second sealed cavity, so that the rubber block 28 slides along the groove 30 and contacts with the first rotating shaft 2. In the actual use process, rotate interior lock core 14 earlier for piston 6 moves towards interior lock core 14 direction, and push rod 8 breaks away from with the draw-in groove under the effect of first coil spring 7 elasticity, at this moment, can freely open cabinet door 3 to arbitrary angle. After the door 3 is opened, the inner lock cylinder 14 is rotated continuously in the same direction and the piston 6 is pressed against the first round rod 25, the rubber block 28 is close to the first rotating shaft 2 and the first rotating shaft 2 is tightly contacted, and the position of the door 3 is further limited by the friction force between the rubber block 28 and the first rotating shaft 2.
As shown in fig. 5 and fig. 6, in this embodiment, the high-voltage power electrical distribution cabinet further includes a second round rod 32, the second round rod 32 is connected with the third inner cavity 29 in a sliding and sealing manner near the side wall of the piston 6, one end of the second round rod 32 extends into the third inner cavity 29, the other end of the second round rod 32 extends into the first inner cavity 11 and is located between the first round rod 25 and the inner lock cylinder 14, and a second stopper 33 is disposed on an outer peripheral surface of one end of the second round rod 32. A second round bar 32 is arranged between the first round bar 25 and the inner lock cylinder 14, and by continuing to rotate the inner lock cylinder 14 and pressing the piston 6 against the second round bar 32, the ejector rod 26 can be further pushed towards the first rotating shaft 2 by using the lubricating grease in the second sealed chamber, further increasing the elastic force of the third helical spring 27 and the friction force between the rubber block 28 and the first rotating shaft 2.
In this embodiment, the first round bar 25 and the second round bar 32 are both arc-shaped at one end of the first inner cavity 11.
In the above embodiment, the sizes and dimensions of the components included in the high-voltage power electrical distribution cabinet can be adjusted according to actual conditions, and are not described herein again.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims (10)

1. A high-voltage power electrical power distribution cabinet comprises a cabinet body, a first rotating shaft and a cabinet door, wherein one side of an opening of the cabinet body is provided with an inward protruding edge, the protruding edge is provided with a slot, the cabinet door is rotatably connected with the slot through the first rotating shaft, and the high-voltage power electrical power distribution cabinet is characterized by further comprising a second rotating shaft, a connecting shaft, a nut column, a first spiral spring, a piston and a push rod, a first inner cavity and a second inner cavity are arranged in the protruding edge, one end of the second rotating shaft is rotatably connected with the side wall, far away from the cabinet door, of the first inner cavity, the other end of the second rotating shaft is fixedly connected with one end of the connecting shaft, the other end of the connecting shaft extends into the first inner cavity and is in threaded connection with the nut column, and the piston is fixedly connected with one end, far away from the second rotating shaft, the piston with the inner wall sliding seal of first inner chamber connects, first inner chamber with the second inner chamber is through first through-hole intercommunication, the piston first inner chamber form a first sealed cavity between the push rod, it has lubricating grease to fill in the first sealed cavity, first coil spring's one end with first inner chamber is kept away from the lateral wall fixed connection of second inner chamber, first coil spring's the other end with the one end fixed connection of push rod, the one end of push rod with the inner wall sliding seal of first through-hole connects, the one end of first pivot stretches into in the second inner chamber and be equipped with the other end assorted draw-in groove of push rod, the second pivot is made by the fusible alloy.
2. The high-voltage power electrical distribution cabinet according to claim 1, further comprising a lock, wherein the lock comprises an inner lock cylinder, the lock is installed in the side wall of the first inner cavity away from the cabinet door, and one end of the second rotating shaft is rotatably connected to the side wall of the first inner cavity away from the cabinet door through the inner lock cylinder.
3. The high voltage power electrical distribution cabinet according to one of the preceding claims, wherein the lock further comprises an outer lock cylinder, a second spiral spring, an outer pin and an inner pin, the outer lock cylinder is provided with at least one outer pin hole, the inner lock cylinder is provided with an inner pin hole matched with the outer pin hole, the inner lock cylinder is sleeved in the outer lock cylinder, the second spiral spring and the outer pin are installed in the outer pin hole, one end of the second spiral spring is in contact with the side wall of the outer pin hole far away from the inner lock cylinder, the other end of the second spiral spring is in contact with one end of the outer pin, and the inner pin is installed in the inner pin hole.
4. A high voltage power electrical switch cabinet according to any of the preceding claims, wherein said high voltage power electrical switch cabinet further comprises a key matching said lock.
5. A high voltage power electrical switch cabinet according to any of the preceding claims 4, wherein said second shaft has a melting temperature between 65 ℃ and 80 ℃.
6. High voltage electrical power distribution cabinet according to one of the preceding claims, wherein said nut studs are clinch nut studs.
7. A high voltage power electrical distribution cabinet according to any of the preceding claims, wherein said slots are regular hexagonal.
8. A high voltage power electrical switch cabinet according to any of the preceding claims, wherein said cabinet door is provided with a switch handle.
9. A high voltage power electrical switch cabinet according to any of the preceding claims, wherein said lock is made of an aluminium alloy material.
10. A high voltage power electrical switch cabinet according to any of the preceding claims, wherein the bottom of said cabinet body is fitted with rubber feet.
CN202011039836.4A 2020-09-28 2020-09-28 High-voltage power electrical power distribution cabinet Withdrawn CN112186562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011039836.4A CN112186562A (en) 2020-09-28 2020-09-28 High-voltage power electrical power distribution cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011039836.4A CN112186562A (en) 2020-09-28 2020-09-28 High-voltage power electrical power distribution cabinet

Publications (1)

Publication Number Publication Date
CN112186562A true CN112186562A (en) 2021-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011039836.4A Withdrawn CN112186562A (en) 2020-09-28 2020-09-28 High-voltage power electrical power distribution cabinet

Country Status (1)

Country Link
CN (1) CN112186562A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950475U (en) * 1982-09-27 1984-04-03 株式会社東芝 Lock structure of cover in camera housing
JP2001298813A (en) * 2000-04-14 2001-10-26 Nissin Electric Co Ltd Door opening and closing device for switchgear
CN202324849U (en) * 2011-11-18 2012-07-11 钟永颂 Pin tumbler lock
CN207847425U (en) * 2017-12-20 2018-09-11 潍坊长城复兴门窗幕墙工程有限公司 A kind of sliding door that can be locked at any time
KR20190137575A (en) * 2018-06-02 2019-12-11 배준엽 Fixed Door Distribution Box
CN210517417U (en) * 2019-11-07 2020-05-12 任潇倩 Electric cabinet for power supply and distribution of building that security performance is high

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950475U (en) * 1982-09-27 1984-04-03 株式会社東芝 Lock structure of cover in camera housing
JP2001298813A (en) * 2000-04-14 2001-10-26 Nissin Electric Co Ltd Door opening and closing device for switchgear
CN202324849U (en) * 2011-11-18 2012-07-11 钟永颂 Pin tumbler lock
CN207847425U (en) * 2017-12-20 2018-09-11 潍坊长城复兴门窗幕墙工程有限公司 A kind of sliding door that can be locked at any time
KR20190137575A (en) * 2018-06-02 2019-12-11 배준엽 Fixed Door Distribution Box
CN210517417U (en) * 2019-11-07 2020-05-12 任潇倩 Electric cabinet for power supply and distribution of building that security performance is high

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