CN112448305A

CN112448305A - Outdoor landing high-voltage demarcation electric energy metering box with mechanical interlock

Info

Publication number: CN112448305A
Application number: CN201910826324.3A
Authority: CN
Inventors: 郑华伟; 卞飞; 周鹏; 史辛琳; 汪皖昱; 徐圣棠; 赵笑琦; 谭超; 李楠; 王栋; 闫泽民; 侯博文; 刘晓光; 陈伟; 崔玉振; 刘沛
Original assignee: Xinxiang Huayuan Electric Power Group Co ltd; Xinxiang Power Supply Co of State Grid Henan Electric Power Co Ltd
Current assignee: Xinxiang Huayuan Electric Power Group Co ltd; Xinxiang Power Supply Co of State Grid Henan Electric Power Co Ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2021-03-05

Abstract

The invention discloses an outdoor landing high-voltage demarcation electric energy metering box with mechanical interlocking, which comprises a cabinet body, wherein the interior of the cabinet body is divided into an independent high-voltage switch chamber, a high-voltage wire inlet chamber, a high-voltage wire outlet chamber, a metering chamber and a gas cabin through metal partition plates, the high-voltage switch chamber, the high-voltage wire inlet chamber, the high-voltage wire outlet chamber and the metering chamber respectively face four directions and are arranged around the gas cabin, and a switch chamber door, a wire inlet chamber door, a wire outlet chamber door and a metering chamber door are respectively installed on the cabinet body; be equipped with between switch room door and the inlet wire room door and be used for controlling the first mechanical interlocking device that the inlet wire room door opened and shut, be equipped with between switch room door and the outlet wire room door and be used for controlling the second mechanical interlocking device that the outlet wire room door opened and shut. The invention can solve the problems that the installation construction, operation and maintenance, and metering and meter reading are inconvenient on the high-voltage demarcation switch and metering device column of the power supply department, and the outdoor installation of the demarcation switch and the metering device is greatly influenced by the environment, has high failure rate and has large electric shock risk.

Description

Outdoor landing high-voltage demarcation electric energy metering box with mechanical interlock

Technical Field

The invention relates to the technical field of high-voltage power equipment, in particular to an outdoor landing high-voltage demarcation electric energy metering box with mechanical interlocking.

Background

At present, the main mode of providing high-voltage electric energy power supply service for users by a power supply department is to install a high-voltage pole-mounted switch on a pole of a high-voltage line as a boundary switch, then to measure high-voltage electric energy on an outgoing line side of the boundary switch, and a measuring device is also installed in a pole in a high altitude mode.

This power supply scheme has the following problems: 1. the demarcation switch and the metering device are separately arranged on a rod, so that construction, installation, operation and maintenance, maintenance and meter reading are inconvenient; 2. the high-voltage charged body of the on-column demarcation switch is exposed, is influenced by factors such as environmental change, condensation and the like, has flashover, discharge and the like, has high equipment failure rate, and the operating mechanism of the on-column demarcation switch is easy to corrode outdoors to cause switch operation failure; 3. the metering device is arranged on the column and is close to the high-voltage electrified body, so that the electric shock risk of metering and collecting personnel is high, and in addition, the metering device is arranged in an exposed outdoor environment, so that the electric larceny risk is high, and great loss is brought to a power supply department; 4. the demarcation switch and the metering device are independently installed on the column respectively, the work of each overhaul and operating personnel is easy to intersect, the potential safety hazard is large, the completion work needs the assistance of a plurality of professionals, and the work flow is very complex.

Present power equipment producer mainly is absorbed in on the pole boundary metering device and simply installs the research and development and the production of pole switch in outdoor case, still is the installation mode on the post, easily receives the operational environment influence, and the reliability is low, brings very big personal safety hidden danger for fortune dimension, the personnel of collecting, and does not carry out the integrated design to switchgear and metering equipment, is not convenient for the construction installation, more is unfavorable for developing of later stage fortune dimension and measurement work.

Disclosure of Invention

The invention provides an outdoor landing high-voltage boundary electric energy metering box with a mechanical interlock, aiming at solving the defects in the prior art, and solving the problems that a high-voltage boundary switch and a metering device of a power supply department are inconvenient to install, maintain and check meters, and the outdoor installation of the boundary switch and the metering device is greatly influenced by the environment, high in failure rate and high in electric shock risk.

The invention provides an outdoor landing high-voltage demarcation electric energy metering box with mechanical interlocking, which comprises a cabinet body, wherein the interior of the cabinet body is divided into five independent compartments through metal partition plates, namely a high-voltage switch chamber, a high-voltage wire inlet chamber, a high-voltage wire outlet chamber, a metering chamber and a gas cabin, the high-voltage switch chamber, the high-voltage wire inlet chamber, the high-voltage wire outlet chamber and the metering chamber respectively face four directions and are arranged around the gas cabin, a switch chamber door, a wire inlet chamber door, a wire outlet chamber door and a metering chamber door are respectively arranged on the cabinet body corresponding to the positions of the high-voltage switch chamber, the high-voltage wire inlet chamber, the high-voltage wire outlet chamber and the metering chamber, and the high-voltage wire inlet chamber and the high-voltage wire;

be equipped with between switch room door and the inlet wire room door and be used for controlling the first mechanical interlocking device that the inlet wire room door opened and shut, be equipped with between switch room door and the outlet wire room door and be used for controlling the second mechanical interlocking device that the outlet wire room door opened and shut.

Preferably, SF6 gas for insulation is filled in the gas cabin, and a circuit breaker, a three-position isolating switch and a protection current transformer are installed in the gas cabin;

a switch mechanism bin is arranged in the high-voltage switch chamber, a circuit breaker operating mechanism of the circuit breaker and an isolating switch operating mechanism of the three-station isolating switch are respectively arranged in the switch mechanism bin, and the switch mechanism bin is sealed by a mechanism bin sealing plate;

the circuit breaker electric operating shaft and the manual operating shaft of the circuit breaker operating mechanism respectively extend out of the mechanism bin sealing plate, the circuit breaker electric operating handle is mounted at the end part of the circuit breaker electric operating shaft, the isolating switch operating shaft of the isolating switch operating mechanism extends out of the mechanism bin sealing plate, and the circuit breaker electric operating shaft, the manual operating shaft and the connecting parts of the isolating switch operating shaft and the mechanism bin sealing plate are respectively in sealing connection through sealing shaft sleeves;

the high-voltage wire inlet chamber is internally provided with a wire inlet cable which is an insulated cable, and the wire inlet cable is connected with a wire inlet end of a circuit breaker in the gas bin in a plugging manner;

an outlet cable is arranged in the high-voltage outlet chamber, the outlet cable is an insulated cable, and the outlet cable is in plug connection with a primary conductor in the gas cabin;

the metering chamber is internally provided with a metering table bin, a metering voltage transformer and a metering current transformer, the mounting heights of the metering voltage transformer and the metering current transformer are lower than those of the circuit breakers, and the primary charged parts of the metering voltage transformer and the metering current transformer are sealed in the gas bin.

Preferably, an observation hole is formed in the side wall, close to the high-voltage wire outlet chamber, of the gas bin, and an observation window is installed at the observation hole.

Preferably, the first mechanical interlocking mechanism and the second mechanical interlocking mechanism have the same structure and are symmetrical to each other, the first mechanical interlocking mechanism comprises an operating handle, a rotating rod and at least one group of interlocking transmission assemblies, one end of the operating handle extends out of the metal partition plate on one side of the high-voltage switch chamber and is horizontally arranged, a baffle ring is fixedly connected onto the operating handle, a reset spring is arranged between the baffle ring and the metal partition plate extending out of the operating handle, the rotating rod is vertically arranged and is rotatably connected to the corner of the cabinet body, a first crank arm is fixedly connected onto the rotating rod, and the other end of the operating handle is hinged to the first crank arm; locks and stirrers are respectively and fixedly arranged on the inner side wall of the wire inlet chamber door and the inner side wall of the wire outlet chamber door;

the interlocking transmission assembly comprises a second crank arm, a guide support, a push rod and a lock rod, one end of the second crank arm is fixed on the rotating rod, the other end of the second crank arm is provided with a waist-shaped hole, the guide support is fixed on the inner side wall of the cabinet body, the lock rod is connected onto the guide support in a sliding mode, the guide support is provided with a long hole, the length direction of the long hole is axially parallel to the lock rod, the push rod is vertically arranged, one end of the push rod is fixedly connected onto the lock rod, the other end of the push rod sequentially penetrates through the long hole and the waist-shaped hole;

the operating handle is parallel to the opening and closing chamber door in the horizontal direction, and the lock rod is parallel to the outlet chamber door in the horizontal direction.

Preferably, install the overhead door subassembly that is used for pushing up the door plant between guide bracket and the lock are mixed, and the overhead door subassembly includes roof, rotation support and torsional spring, and the roof is the bent plate, and the one end of roof is rotated through the pivot and is connected on rotating the support, rotates support fixed connection on the inside wall of the cabinet body, installation in the pivot the torsional spring, when the room door of being qualified for the next round of competitions is closed, the locking lever passes the lock and mixes, the other end of roof and the room door roof pressure contact of being qualified for the next round of.

Preferably, the cabinet body is internally and fixedly connected with two support plates which are respectively arranged at the upper part and the lower part of the cabinet body, and the upper end and the lower end of the rotating rod are rotatably connected on the support plates.

Preferably, the interlocking transmission assemblies are provided with two groups which are respectively arranged at the upper part and the lower part of the cabinet body.

Preferably, the door of the switch room and the door of the metering room are both provided with a rotating mortise lock assembly, the rotating mortise lock assembly comprises a rotating handle, an upper inserting rod and a lower inserting rod, the rotating handle is rotatably connected to the middle part of the door of the switch room or the door of the metering room, one end of the rotating handle penetrates out of the door of the switch room or the door of the metering room, the other end of the rotating handle is fixedly connected with a rotating block, the upper inserting rod and the lower inserting rod are all arranged inside the cabinet body, and the upper inserting rod and the lower inserting rod are vertically arranged and are respectively hinged to the rotating block;

an upper guide block and a lower guide block are fixed on the door of the opening and closing chamber and the door of the metering chamber, an upper insertion rod is connected with the upper guide block in a sliding manner, and a lower insertion rod is connected with the lower guide block in a sliding manner.

Preferably, a first hinge and a second hinge are installed between the opening and closing chamber door and the cabinet body, one end of the first hinge is hinged to the cabinet body, the other end of the first hinge is hinged to one end of the second hinge, and the other end of the second hinge is hinged to the opening and closing chamber door.

Preferably, a plurality of heat dissipation holes are respectively formed in the wire inlet chamber door and the wire outlet chamber door, and a file box is installed on the inner side wall of the switch chamber door.

By adopting the technical scheme, the invention has the following advantages:

1. the internal compartments of the invention are independent respectively, are connected with each other and do not interfere with each other, compared with the existing boundary switch and metering device, the boundary switch and the metering device are installed in a cabinet body in a centralized way, the structure is compact, the volume is greatly reduced, and the transportation and the landing construction installation are convenient; the high-voltage switch and the charged body are sealed in the gas cabin filled with SF6 gas or environment-friendly gas, so that the equipment can be ensured to run reliably outdoors for a long time, and each independent function compartment can meet the normal work of different professionals, and is safe, convenient and reliable.

2. According to the invention, the observation window is arranged on the side wall of the gas cabin close to the high-voltage outlet chamber, the real-time working states of opening, closing and grounding of the three-position isolating switch can be observed through the observation window, and an operation and maintenance maintainer can observe the real-time working position of the three-position isolating switch in real time according to the working requirement, so that reliable safety guarantee is provided for operation and maintenance work, the problem that the SF6 gas insulated cabinet cannot observe the working state of the isolating switch in real time is solved, and great convenience is provided for the operation and maintenance work.

3. The metering chamber is not exposed with a high-voltage electrified body, so that the risk of electric shock of recording, operation and maintenance personnel is avoided, the metering meter bin is arranged close to the metering voltage transformer and the metering current transformer in a centralized design mode and is directly arranged at the lower part of the circuit breaker, the structure is compact, the metering signal acquisition is facilitated, and the possibility of electricity stealing is reduced.

4. The switch mechanism bin is arranged, is completely sealed, has the protection grade reaching IP55, effectively avoids the problem that the switch operating mechanism is easy to rust due to the influence of the outdoor environment, causes the fault of the operating mechanism, ensures that the switch operating mechanism does not rust for a long time and reliably runs, and greatly reduces the fault rate of the outdoor equipment mechanism due to the rust.

5. According to the invention, the switch room door and the incoming line room door are mechanically interlocked, the switch room door and the outgoing line room door are mechanically interlocked, and only when the high-voltage switch room confirms that the high-voltage incoming line room or the high-voltage outgoing line room is electrified, the opening and closing of the incoming line room door and the outgoing line room door can be realized through the operation handle at the push-pull switch room door, so that the problem that the high-voltage incoming line room and the high-voltage outgoing line room are mistakenly electrified is avoided; the door locking device is not needed to be additionally arranged on the wire inlet chamber door and the wire outlet chamber door, so that the problem that the door cannot be opened due to the corrosion of an outdoor lock is avoided; the electrified interval of the incoming and outgoing line room can be effectively prevented from being mistakenly inserted, meanwhile, the operation of opening and closing the door of the incoming and outgoing line room by a single person can be realized, the electric shock hazard caused by the mutual matching operation error is effectively avoided, and the reliable interlocking among the intervals is realized. The interlocking mechanism is simple in structure, convenient to operate, easy to produce and manufacture and capable of being widely applied to outdoor power equipment.

Drawings

FIG. 1 is a front view of the present invention (with the metering chamber door open);

fig. 2 is a left side view of the present invention (outlet chamber door open state);

fig. 3 is a right side view of the present invention (with the entrance compartment door open);

fig. 4 is a rear view of the present invention (with the opening and closing chamber door open);

FIG. 5 is a sectional view A-A of FIG. 4;

FIG. 6 is a partial schematic view of the interior of the cabinet;

FIG. 7 is an enlarged partial schematic view at A of FIG. 6;

fig. 8 is a partially enlarged schematic view at B in fig. 6.

Reference numerals: 1. the file box comprises a cabinet body, 11, a metal partition plate, 12, a door for opening and closing doors, 121, a first hinge, 122, a second hinge, 123, a file box, 124, a rotating handle, 125, an upper insertion rod, 126, a lower insertion rod, 127, a rotating block, 128, an upper guide block, 129, a lower guide block, 13, a door for incoming lines, 14, a door for outgoing lines, 15, a door for metering doors, 16 and heat dissipation holes;

21. the locking device comprises an operating handle, 211, a baffle ring, 212, a return spring, 22, a rotating rod, 23, a first crank arm, 241, a second crank arm, 242, a guide bracket, 243, a push rod, 244, a locking rod, 25, a lock, 261, a top plate, 262, a rotating support, 263, a torsion spring, 264, a rotating shaft, 27 and a support plate;

3. the device comprises a gas cabin 31, a circuit breaker 32, a three-position isolating switch 33, a protection current transformer 34 and an observation window;

4. a high-voltage switch chamber 41, a switch mechanism chamber 42, a mechanism chamber sealing plate 43, a breaker operating mechanism 44, a disconnecting switch operating mechanism 45, a breaker electric operating shaft 46, a manual operating shaft 47, a breaker electric operating handle 48, a disconnecting switch operating shaft 49 and a sealing shaft sleeve;

5. the high-voltage metering device comprises a high-voltage wire inlet chamber 51, a wire inlet cable 6, a high-voltage wire outlet chamber 61, a wire outlet cable 7, a metering chamber 71, a metering bin 72, a metering voltage transformer 73 and a metering current transformer.

Detailed Description

As shown in fig. 1 to 8, the outdoor floor high-voltage demarcation electric energy metering box with mechanical interlock comprises a cabinet body 1, the cabinet body 1 is internally divided into five independent compartments through metal partition plates 11, namely a high-voltage switch chamber 4, a high-voltage wire inlet chamber 5, a high-voltage wire outlet chamber 6, a metering chamber 7 and an air bin 3, the high-voltage switch chamber 4, the high-voltage wire inlet chamber 5, the high-voltage wire outlet chamber 6 and the metering chamber 7 respectively face four directions and are arranged around the air bin 3, a switch chamber door 12, a wire inlet chamber door 13, a wire outlet chamber door 14 and a metering chamber 7 door 15 are respectively arranged on the cabinet body 1 corresponding to the high-voltage switch chamber 4, the high-voltage wire inlet chamber door 5, the high-voltage wire outlet chamber 6 and the metering chamber 7, and the high-voltage wire inlet chamber 5 and the high-voltage wire;

be equipped with between switch room door 12 and the entrance to a telephone switchboard room door 13 and be used for controlling the first mechanical interlocking mechanism that entrance to a telephone switchboard room door 13 opened and shut, be equipped with between switch room door 12 and the exit from a telephone switchboard room door 14 and be used for controlling the second mechanical interlocking mechanism that exit from a telephone switchboard room door 14 opened and shut.

SF6 gas for insulation is filled in the gas cabin 3, and a circuit breaker 31, a three-position isolating switch 32 and a protection current transformer 33 are installed in the gas cabin 3; all insulation, totally enclosed for whole equipment structure is very compact, and all electrified bodies and primary member all are in totally insulated totally enclosed SF6 gas chamber 3, do not receive external environment influence, ensure the long-term reliable operation of equipment, reduce the maintenance work of equipment.

The high-voltage switch chamber 4 is formed by a switch chamber door 12 on the cabinet body 1 and a metal partition plate 11 in the cabinet body 1 to form an independent switch chamber interval, a switch mechanism bin 41 is arranged in the high-voltage switch chamber 4, and no exposed charged body exists in the high-voltage switch chamber 4, so that the operation, maintenance and repair are convenient, and the operation is convenient; the circuit breaker operating device 43 of circuit breaker 31 and the isolator operating device 44 of three-station isolator 32 install respectively in the switchgear storehouse 41, the switchgear storehouse 41 is sealed through mechanism storehouse shrouding 42, the switchgear storehouse 41 is sealed completely, protection level reaches IP55, effectively avoided the problem that the switch operating device caused operating device trouble by the easy corrosion of environmental impact outdoor, ensure that the long-term reliable operation of switch operating device does not corrode, greatly reduced the fault rate of outdoor equipment mechanism because of the corrosion.

A circuit breaker electric operating shaft 45 and a manual operating shaft 46 of the circuit breaker operating mechanism 43 respectively extend out of the mechanism bin sealing plate 42, a circuit breaker electric operating handle 47 is mounted at the end part of the circuit breaker electric operating shaft 45, a disconnecting switch operating shaft 48 of the disconnecting switch operating mechanism 44 extends out of the mechanism bin sealing plate 42, and the connecting parts of the circuit breaker electric operating shaft 45, the manual operating shaft 46 and the disconnecting switch operating shaft 48 and the mechanism bin sealing plate 42 are respectively in sealing connection through a sealing shaft sleeve 49; the electric switching on and off of the circuit breaker 31 can be realized by rotating the electric operating handle 47 of the circuit breaker, the manual switching on and off of the circuit breaker 31 can be realized by rotating the part of the manual operating shaft 46 extending out of the mechanism bin sealing plate 42, and the switching on and off and grounding operations of the disconnecting switch can be realized by rotating the extending part of the disconnecting switch operating shaft 48.

The high-voltage wire inlet chamber 5 comprises a wire inlet chamber door 13 on the cabinet body 1 and a metal partition plate 11 in the cabinet body 1 to form an independent wire inlet chamber interval, a wire inlet cable 51 is arranged in the high-voltage wire inlet chamber 5, the wire inlet cable 51 is an insulated cable, the wire inlet cable 51 is in plug-in connection with a wire inlet end of a circuit breaker 31 in the gas cabin 3, construction wiring is facilitated, no exposed high-voltage electrified body exists in the high-voltage wire inlet chamber 5, and personal safety of operation and maintenance personnel can be guaranteed.

The high-voltage outlet chamber 6 is composed of an outlet chamber door 14 on the cabinet body 1 and a metal partition plate 11 in the cabinet body 1 to form an independent outlet chamber interval, an outlet cable 61 is arranged in the high-voltage outlet chamber 6, the outlet cable 61 is an insulated cable, the outlet cable 61 is in plug connection with a primary conductor in the gas cabin 3, and no exposed charged body exists in the high-voltage outlet chamber 6, so that the safety of operation and maintenance personnel is ensured, and the construction and wiring are convenient.

The metering chamber 7 is formed by a door 15 of the metering chamber 7 on the cabinet body 1 and a metal partition plate 11 in the cabinet body 1 into independent metering chamber 7 intervals, a metering chamber 71, a metering voltage transformer 72 and a metering current transformer 73 are arranged in the metering chamber 7, the installation heights of the metering voltage transformer 72 and the metering current transformer 73 are lower than that of the circuit breaker 31, and primary charged parts of the metering voltage transformer 72 and the metering current transformer 73 are sealed in the gas cabin 3. Can establish the padlock on the strapping table storehouse 71, ensure that equipment reliable operation in the measurement room 7, no high voltage charged body exposes in the measurement room 7, avoid copying, the risk that the fortune dimension personnel electrocuted, strapping table storehouse 71 is close to measurement voltage transformer 72 and measurement current transformer 73 and concentrates the design installation, and directly in the lower part of circuit breaker 31, compact structure, the measurement signal acquisition of being convenient for avoids stealing the possibility of electricity.

The gas storehouse 3 has been seted up the observation hole on being close to the lateral wall of high pressure outlet chamber 6, observation window 34 is installed through flange and bolt in observation hole department, see through observation window 34, can observe three-station isolator 32's separating brake, the real-time operating condition of combined floodgate and ground connection, the operation and maintenance maintainer observes three-station isolator 32's real-time operating position according to the needs of work in real time, provide reliable safety guarantee for overhauing operation and maintenance work, the problem that SF6 gas-insulated cabinet can not observe isolator operating condition in real time has thoroughly been solved to this scheme, for operation and maintenance work provides very big facility.

The first mechanical interlocking mechanism and the second mechanical interlocking mechanism are identical in structure and symmetrical to each other, the first mechanical interlocking mechanism comprises an operating handle 21, a rotating rod 22 and at least one group of interlocking transmission assemblies, one end of the operating handle 21 extends out of the metal partition plate 11 on one side of the high-voltage switch chamber 4 and is horizontally arranged, a baffle ring 211 is fixedly connected onto the operating handle 21, a reset spring 212 is arranged between the baffle ring 211 and the metal partition plate 11 extending out of the operating handle 21, the rotating rod 22 is vertically arranged and is rotatably connected to a corner of the cabinet body 1 (such as a junction of the high-voltage switch chamber 4 and the high-voltage wire inlet chamber 5 and a junction of the high-voltage switch chamber 4 and the high-voltage wire outlet chamber 6), a first crank arm 23 is fixedly connected onto the rotating rod 22, and the other end of the operating handle 21 is hinged to; lock stirrers 25 are fixedly mounted on the inner side wall of the wire inlet chamber door 13 and the inner side wall of the wire outlet chamber door 14 respectively, and holes are formed in the lock stirrers 25 so that the lock rod 244 can be inserted conveniently.

Two support plates 27 are fixedly connected in the cabinet body 1, the two support plates 27 are respectively installed at the upper part and the lower part of the cabinet body 1, and the upper end and the lower end of the rotating rod 22 are rotatably connected on the support plates 27. The support plate 27 is provided with a hole, and both ends of the rotating rod 22 can be inserted into the support plate 27 to rotate.

In this embodiment, the interlocking transmission assembly is provided with two sets, sets up respectively in the upper portion and the lower part of the cabinet body 1, improves the closure of business turn over entrance door 13 or line outgoing door 14. Interlocking transmission subassembly includes second crank arm 241, guide bracket 242, push rod 243 and locking lever 244, the one end of second crank arm 241 is fixed on dwang 22, waist shape hole has been seted up to the other end of second crank arm 241, guide bracket 242 is fixed on the inside wall of the cabinet body 1, locking lever 244 sliding connection is on guide bracket 242, the slot hole has been seted up on guide bracket 242, the length direction and the locking lever 244 axial direction of slot hole are parallel, the vertical setting of push rod 243 and the one end fixed connection of push rod 243 are on locking lever 244, the other end of push rod 243 passes slot hole and waist shape hole setting in proper order, locking lever 244 mixes 25 cooperation setting with the lock.

The operation handle 21 is parallel to the opening and closing chamber door 12 in the horizontal direction, and the lock lever 244 is parallel to the incoming line chamber door 13 or the outgoing line chamber door 14 in the horizontal direction. One end of the operating handle 21 is of a T-shaped structure, so that the operating handle 21 can be held conveniently, and meanwhile, the operating handle 21 can be limited, and one end of the operating handle 21 is prevented from being immersed into the metal partition plate 11.

Install the overhead door subassembly that is used for pushing up the door plant between guide bracket 242 and the lock stirring 25, overhead door subassembly includes roof 261, pivoting support 262 and torsional spring 263, and roof 261 is the bent plate, and the one end of roof 261 rotates through pivot 264 to be connected on pivoting support 262, and pivoting support 262 fixed connection is on the inside wall of the cabinet body 1, installation in the pivot 264 torsional spring 263, when the room door 14 of being qualified for the next round of competitions is closed, locking lever 244 passes the lock stirring 25, the other end of roof 261 and the room door 14 roof pressure contact of being qualified for the next round of competitions.

The torsion spring 263 can push the top plate 261 to always push the outlet door 14 or the inlet door 13, ensuring that the outlet door 14 or the inlet door 13 is pushed open.

The mechanical interlocking mechanism works as follows:

when the outlet chamber door 14 needs to be opened, the operating handle 21 close to one side of the inlet chamber door 13 is pulled to drive the first crank arm 23 to rotate, so that the rotating rod 22 rotates, meanwhile, the return spring 212 is compressed, the rotating rod 22 drives the second crank arm 241 to rotate, the second crank arm 241 pulls the push rod 243 to move towards one side of the rotating rod 22 along the guide bracket 242, the push rod 243 drives the lock rod 244 to be separated from the lock catch 25, the end of the top plate 261 pushes the outlet chamber door 14 open by the torsion spring 263, and the door is opened, and at this time, the operating handle 21 pushes the lock lever 244 all the way under the action of the return spring 212, so that the lock lever 244 has a tendency to be inserted into the lock knob 25, and the locking lever 244 is stopped by the top plate 261 at this time, and the locking knob 25 cannot be inserted, and when the door is closed, the outlet chamber door 14 pushes the top plate 261 to move, the lower portion of the top plate 261 rotates backward, at the same time, the lock lever 244 is released, and the lock lever 244 can be smoothly inserted into the lock knob 25, thereby achieving the door closing operation. The opening and closing process of the entrance chamber door 13 and so on.

Switch room door 12 and inlet wire room door 13 mechanical interlocking, switch room door 12 and outlet wire room door 14 mechanical interlocking can realize opening and the operation of closing to inlet wire room door 13 and outlet wire room door 14 through the operating handle 21 of push-and-pull switch room door 12 department, can avoid electrified mistake to go into the problem of high pressure inlet wire room 5 and high pressure outlet wire room 6. The door opening and closing operation is completed by single person operation, so that the electric shock hazard caused by mutual cooperation operation errors is avoided, and unsafe factors in multi-person cross work are avoided; the door 13 of the incoming line door and the door 14 of the outgoing line door do not need to be additionally provided with door locking devices, so that the problem that the door cannot be opened due to corrosion of an outdoor lock is avoided; the electrified interval of high-voltage business turn over line room can effectively be prevented from being gone into by mistake, the operation of single switch business turn over line room door 14 still can be realized simultaneously, the electric shock danger that the mistake of operation of mutually supporting caused has effectively been avoided, realize the reliable interlocking between each interval.

The door 12 for opening and closing the door and the door 15 for measuring the door are both provided with a rotating mortise lock assembly, the rotating mortise lock assembly comprises a rotating handle 124, an upper insertion rod 125 and a lower insertion rod 126, the rotating handle 124 is rotatably connected to the middle part of the door 12 for opening and closing the door or the door 15 for measuring the door, one end of the rotating handle 124 penetrates out of the door 12 for opening and closing the door or the door 15 for measuring the door, the other end of the rotating handle 124 is fixedly connected with a rotating block 127, the upper insertion rod 125 and the lower insertion rod 126 are all arranged inside the cabinet body 1, and the upper insertion rod 125 and the lower insertion rod 126 are vertically arranged and are; an upper guide block 128 and a lower guide block 129 are fixed on the opening and closing chamber door 12 and the metering chamber door 15, the upper insertion rod 125 is slidably connected with the upper guide block 128, and the lower insertion rod 126 is slidably connected with the lower guide block 129.

When the rotating handle 124 rotates, the rotating block 127 is driven to rotate, the upper insertion rod 125 and the lower insertion rod 126 are far away from or close to each other, when the upper insertion rod 125 and the lower insertion rod 126 are far away from each other, the upper insertion rod 125 and the lower insertion rod 126 vertically extend out of the door 12 for opening and closing the door 15 for opening and closing the door 12 for opening and closing the door 15 for measuring the door and block the inside of the cabinet 1, when the upper insertion rod 125 and the lower insertion rod 126 are close to each other, the upper insertion rod 125 and the lower insertion rod 126 vertically leave the cabinet 1 for retracting the inside of the door 12 for opening and closing the door 15 for measuring. The upper guide block 128 and the lower guide block 129 may guide the upper insert rod 125 and the lower insert rod 126.

Install first hinge 121 and second hinge 122 between switch room door 12 and the cabinet body 1, the one end of first hinge 121 articulates on the cabinet body 1, the other end of first hinge 121 and the one end of second hinge 122 are articulated, the other end of second hinge 122 articulates on switch room door 12, when opening switch room door 12, the degree of opening and shutting of switch room door 12 can be fixed a position to first hinge 121 and second hinge 122, to windowing the same, avoid switch room door 12 to rock.

A plurality of louvre 16 has been seted up on inlet wire room door 13 and the outlet wire room door 14 respectively, avoids the cabinet body 1 high temperature, installs file box 123 on the inside wall of switch room door 12, is convenient for place the paper file, conveniently refers to.

The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a take mechanical interlocking's outdoor high pressure boundary electric-energy metering box that falls to ground, includes the cabinet body, its characterized in that: the interior of the cabinet body is divided into five independent compartments through metal partition plates, namely a high-voltage switch chamber, a high-voltage wire inlet chamber, a high-voltage wire outlet chamber, a metering chamber and a gas bin, wherein the high-voltage switch chamber, the high-voltage wire inlet chamber, the high-voltage wire outlet chamber and the metering chamber face four directions respectively and are arranged around the gas bin;

2. The outdoor landing high-voltage demarcation electric energy metering box with the mechanical interlock according to claim 1, is characterized in that: SF6 gas for insulation is filled in the gas cabin, and a circuit breaker, a three-station isolating switch and a protective current transformer are installed in the gas cabin;

3. The outdoor floor high-voltage demarcation electric energy metering box with the mechanical interlock according to claim 1 or 2, is characterized in that: an observation hole is formed in the side wall, close to the high-voltage wire outlet chamber, of the air bin, and an observation window is installed at the observation hole.

4. The outdoor floor high-voltage demarcation electric energy metering box with the mechanical interlock according to claim 1 or 2, is characterized in that: the first mechanical interlocking mechanism and the second mechanical interlocking mechanism are identical in structure and symmetrical to each other, the first mechanical interlocking mechanism comprises an operating handle, a rotating rod and at least one group of interlocking transmission assemblies, one end of the operating handle extends out of a metal partition plate on one side of the high-voltage switch chamber and is horizontally arranged, a baffle ring is fixedly connected onto the operating handle, a reset spring is arranged between the baffle ring and the metal partition plate extending out of the operating handle, the rotating rod is vertically arranged and is rotatably connected to the corner of the cabinet body, a first crank arm is fixedly connected onto the rotating rod, and the other end of the operating handle is hinged to the first crank arm; locks and stirrers are respectively and fixedly arranged on the inner side wall of the wire inlet chamber door and the inner side wall of the wire outlet chamber door;

5. The outdoor landing high-voltage demarcation electric energy metering box with the mechanical interlock is characterized in that: install the overhead door subassembly that is used for pushing up the door plant between guide bracket and the lock is mixed, and the overhead door subassembly includes roof, rotation support and torsional spring, and the roof is the bent plate, and the one end of roof is rotated through the pivot and is connected on rotating the support, rotates support fixed connection on the inside wall of the cabinet body, installs in the pivot the torsional spring, when the room door of being qualified for the next round of competitions is closed, the locking lever passes the lock and mixes, the other end of roof and the room door roof pressure contact of being qualified for the next round.

6. The outdoor landing high-voltage demarcation electric energy metering box with the mechanical interlock is characterized in that: two supporting plates are fixedly connected in the cabinet body, the two supporting plates are respectively arranged at the upper part and the lower part of the cabinet body, and the upper end and the lower end of the rotating rod are rotatably connected on the supporting plates.

7. The outdoor landing high-voltage demarcation electric energy metering box with the mechanical interlock is characterized in that: the interlocking transmission components are provided with two groups which are respectively arranged at the upper part and the lower part of the cabinet body.

8. The outdoor landing high-voltage demarcation electric energy metering box with the mechanical interlock according to claim 5, is characterized in that: the rotary mortise lock assembly is arranged on each of the switch room door and the metering room door and comprises a rotary handle, an upper inserted bar and a lower inserted bar, the rotary handle is rotatably connected to the middle of the switch room door or the metering room door, one end of the rotary handle penetrates out of the switch room door or the metering room door, the other end of the rotary handle is fixedly connected with a rotary block, the upper inserted bar and the lower inserted bar are all arranged inside the cabinet body, and the upper inserted bar and the lower inserted bar are vertically arranged and are respectively hinged to the rotary block through a waist-shaped hole;

9. The outdoor landing high-voltage demarcation electric energy metering box with the mechanical interlock according to claim 8, is characterized in that: install first hinge and second hinge between switch room door and the cabinet body, the one end of first hinge articulates on the cabinet body, and the other end of first hinge is articulated with the one end of second hinge, and the other end of second hinge articulates on switch room door.

10. The outdoor landing high-voltage demarcation electric energy metering box with the mechanical interlock according to claim 9, is characterized in that: a plurality of radiating holes are formed in the wire inlet room door and the wire outlet room door respectively, and a file box is installed on the inner side wall of the switch room door.