CN212571394U

CN212571394U - Grounding pile management device with mechanical interlock

Info

Publication number: CN212571394U
Application number: CN202021267324.9U
Authority: CN
Inventors: 华江; 赵永生; 王青; 仝戈; 钟明
Original assignee: South To North Water Transfer Middle Route Information Technology Co ltd
Current assignee: South To North Water Transfer Middle Route Information Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-02-19
Anticipated expiration: 2030-07-01

Abstract

The utility model relates to the technical field of temporary grounding wire management of an electric power system, in particular to a grounding pile management device with mechanical interlocking, which comprises a lock core A, a lock core B and a grounding pile management box, wherein the top end of one side of the grounding pile management box is respectively provided with the lock core A and the lock core B, the inner bottom end of the grounding pile management box is provided with a grounding wire hanging bottom plate, the top side of the grounding wire hanging bottom plate is provided with a grounding wire clamping detection top plate, one side of the grounding pile management box is provided with a box door, the top side of the box door is respectively provided with a locking groove A and a locking groove B, the bottom side of the grounding pile management box is provided with a wire groove, the inner side of the grounding pile management box is symmetrically provided with a grounding box door closing detection mechanism A and a grounding box door closing detection mechanism B, one side of the grounding box door closing detection mechanism A and the grounding box door closing detection mechanism B, the five-prevention function of preventing the earth wire from being hung in an electrified way and preventing the circuit breaker from being closed with the earth wire is realized, and the five-prevention device has interlocking setting and high safety barrier.

Description

Grounding pile management device with mechanical interlock

Technical Field

The utility model relates to an electric power system earthing for work line management technical field especially relates to a take ground connection stake management device of mechanical interlocking.

Background

The temporary grounding wire is an important tool for ensuring the safety of workers when voltage unexpectedly appears on power-off equipment and lines in a power system; the temporary grounding wire is a life wire for ensuring the personal safety of workers, but is also a main source of human equipment accidents and personal casualties, accidents that the temporary grounding wire is hung in a power system in a power-on mode or the temporary grounding wire is powered on are frequently generated and are listed as the first of serious misoperation accidents, and the five-prevention system in the conventional power system only has an effect on the operation of grounding switches and the like, but cannot effectively prevent the assembly and disassembly conditions of the temporary grounding wire; the temporary grounding wire is used in the electric power safety production process, so that great potential safety hazards exist, a device is needed to be developed, the temporary grounding wire can be assembled and disassembled, and can be combined with a five-prevention phase lock of equipment to realize the purposes of preventing the grounding wire from being connected with the ground wire in an electrified way and preventing the grounding wire from being connected with a circuit breaker, and therefore, the grounding pile management device with the mechanical interlock is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a grounding pile management device with mechanical interlocking.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the design is that a ground pile management device with mechanical interlocking comprises a lock cylinder A, a lock cylinder B and a ground pile management box, wherein the top end of one side of the ground pile management box is fixedly connected with the lock cylinder A and the lock cylinder B respectively, the inner side bottom end of the ground pile management box is movably connected with a ground wire hooking bottom plate, the top side of the ground wire hooking bottom plate is movably connected with a ground wire clamping detection top plate, one side of the ground pile management box is connected with a box door through a hinge in a turnover mode, the top side of the box door and positions perpendicular to the lock cylinder A and the lock cylinder B are fixedly provided with a locking groove A and a locking groove B respectively, the bottom side of the ground pile management box is fixedly provided with a guide groove, the inner side of the ground pile management box is symmetrically movably connected with a ground box door closing detection mechanism A and a ground box door closing detection mechanism B, and one side of the ground box door closing detection mechanism A and the ground box detection mechanism B are movably, And the limiting mechanism B is arranged on one side of the grounding box door closing detection mechanism A, which is far away from the limiting mechanism A, and one side of the grounding box door closing detection mechanism B, which is far away from the limiting mechanism B, are movably connected and provided with interlocking mechanisms, two interlocking mechanisms are movably connected and provided with springs, and two springs are movably connected and provided with a grounding box locking plate A and a grounding box locking plate B respectively.

Preferably, the interlock mechanism includes: door locking cam A, restriction cam A, door locking cam B, restriction cam B, transmission sleeve A, transmission sleeve B, the inboard of ground connection stake management case and with lock core A, the relative position of lock core B respectively fixed connection be equipped with door locking cam A, door locking cam B, one side of door locking cam A, door locking cam B respectively fixed connection be equipped with transmission sleeve A, transmission sleeve B, one side of transmission sleeve A, transmission sleeve B respectively fixed connection be equipped with restriction cam A, restriction cam B, one side of restriction cam A, restriction cam B respectively with ground connection case door closing detection mechanism A, one side inconsistent of ground connection case door closing detection mechanism B.

Preferably, the lock core A, the door locking cam A, the limiting cam A and the transmission sleeve A are fixedly arranged in the same core; the lock core B, the door locking cam B, the limiting cam B and the transmission sleeve B are fixedly arranged in the same core.

Preferably, the grounding pile management device with mechanical interlocking is incorporated into a five-prevention locking system of the transformer.

The utility model provides a pair of take mechanical interlocking's ground connection stake management device, beneficial effect lies in: the interlocking mechanism is arranged with the only grounding pile management box, and the lock cylinder A is associated with a five-prevention system on the equipment, so that the key of the lock cylinder A can be obtained to carry out hanging connection of a temporary grounding wire only when the equipment is isolated and in a power failure maintenance state, after the hanging connection is finished, the grounding pile management box is locked, the key of the lock cylinder B is taken out, the key of the lock cylinder A is limited to be pulled out, meanwhile, the grounding wire is locked in the box, and the grounding wire is prevented from being removed by other people; thereby "prevent that electrified string (closing) earth connection (earthing switch) that realizes electric power five preventions, when needs resume the power transmission to equipment, must demolish after the earthing for work line, the key of lock core A can be extracted to the side for five relieves of preventing the lock of equipment, carries out the recovery operation of equipment, thereby realizes: the lock core A, the door locking cam A, the limiting cam A and the transmission sleeve A are fixedly arranged in the same core; the lock core B, the door locking cam B, the limiting cam B and the transmission sleeve B are fixedly arranged in a concentric manner, the integral driving of a locking mechanism in the device can be guaranteed, the situation of single movement of parts can not occur, unlocking and locking can be synchronously operated, the grounding pile management device with mechanical interlocking is incorporated into a five-prevention locking system of a transformer, the lock A on a grounding pile management box can be associated with the five-prevention of field electrical equipment, the management of a temporary grounding wire can be incorporated into the five-prevention system of the field equipment, the hanging condition of the grounding wire and the flow of power transmission recovery of the equipment are strictly solidified, and only after the isolation operation of the equipment is completed, the key A of the grounding pile management device can be obtained to unlock the grounding pile, and the grounding wire is hung; the ground pile management device with the mechanical interlock realizes the purposes of preventing the ground wire from being hung in an electrified way, has the interlock setting and has high safety barrier.

Drawings

Fig. 1 is a schematic structural view of a grounding pile management device with mechanical interlock provided by the present invention;

fig. 2 is an appearance structure schematic diagram of a grounding pile management device with mechanical interlock provided by the utility model;

fig. 3 is a structural schematic diagram of an open state of the grounding pile management device with mechanical interlock provided by the present invention;

fig. 4 is a schematic view of a temporary grounding wire hanging structure of a grounding pile management device with mechanical interlock provided by the utility model;

fig. 5 is the utility model provides a take mechanical interlocking's ground connection stake management device's transformer overhauls shutting logic flow schematic diagram.

In the figure: the ground wire clamping detection device comprises a lock cylinder A1, a lock cylinder B2, a ground pile management box 3, a ground wire clamping detection top plate 4, a ground wire hanging bottom plate 5, a lock groove A6, a lock groove B7, a wire guide groove 8, a ground box door closing detection mechanism A9, a limiting mechanism A10, a ground box locking plate A11, a door locking cam A12, a limiting cam A13, a ground box door closing detection mechanism B14, a limiting mechanism B15, a ground box locking plate B16, a door locking cam B17, a limiting cam B18, an interlocking mechanism 19, a transmission sleeve A20 and a transmission sleeve B21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a grounding pile management device with mechanical interlocking comprises a lock cylinder a1, a lock cylinder B2 and a grounding pile management box 3, wherein the top end of one side of the grounding pile management box 3 is respectively and fixedly connected with a lock cylinder a1 and a lock cylinder B2, the bottom end of the inner side of the grounding pile management box 3 is movably connected with a grounding wire hanging bottom plate 5, the top side of the grounding wire hanging bottom plate 5 is movably connected with a grounding wire clamping detection top plate 4, one side of the grounding pile management box 3 is provided with a box door through hinge turnover connection, the top side of the box door and the positions perpendicular to the lock cylinder a1 and the lock cylinder B2 are respectively and fixedly provided with a lock groove a6 and a lock groove B7, the bottom side of the grounding pile management box 3 is fixedly provided with a wire guide groove 8, the inner side of the grounding pile management box 3 is symmetrically and movably connected with a grounding box door closing detection mechanism a9 and a grounding box door closing detection mechanism B14, one side of the grounding box door closing detection mechanism a9 and the, Stop gear B15, the equal swing joint in one side that stop gear A10 was kept away from to ground connection case door closing detection mechanism A9 and ground connection case door closing detection mechanism B14 kept away from stop gear B15 is equipped with interlocking device 19, the equal swing joint in bottom side of two interlocking device 19 is equipped with the spring, the bottom side difference swing joint of two springs is equipped with ground connection case locking plate A11, ground connection case locking plate B16, the inboard fixed connection in bottom of ground connection stake management case 3 is equipped with spliced pole 22, one side of spliced pole 22 is rotated and is connected and is equipped with fishplate bar 23, one side electric connection of fishplate bar 23 is equipped with earth connection 24.

In the utility model, the interlocking mechanism 19 is arranged with the only grounding pile management box 3, and the key of the lock cylinder A is associated with a five-prevention system on the equipment, only when the equipment is isolated and completed and is in a power failure maintenance state, the key of the lock cylinder A can be obtained to hook a temporary grounding wire, after the hooking is completed, the grounding pile management box is locked and the key of the lock cylinder B is taken out, at the moment, the key of the lock cylinder A is limited to be pulled out and simultaneously the grounding wire is locked in the box, so that the grounding wire is prevented from being removed by other people; thereby "prevent that electrified string (closing) earth connection (earthing switch) that realizes electric power five preventions, when needs resume the power transmission to equipment, must demolish after the earthing for work line, the key of lock core A can be extracted to the side for five relieves of preventing the lock of equipment, carries out the recovery operation of equipment, thereby realizes: "prevent power transmission with ground".

In the utility model, the lock core A1, the door locking cam A12, the limiting cam A13 and the transmission sleeve A20 are fixedly arranged in the same core; the lock cylinder B2, the door locking cam B17, the limiting cam B18 and the transmission sleeve B21 are fixedly arranged in the same core, so that the integral driving of a locking mechanism in the device can be ensured, the condition of single movement of parts cannot occur, and the unlocking and locking can be synchronously operated.

In the utility model, the grounding pile management device with mechanical interlocking is used for containing the five-prevention locking system of the transformer, the A lock on the grounding pile management box can be associated with the five-prevention of the field electrical equipment, the management of the temporary grounding wire is contained in the five-prevention system of the field equipment, the hanging condition of the grounding wire and the process of power transmission recovery of the equipment are strictly solidified, and only after the isolation operation of the equipment is completed, the key A of the grounding pile management device can be obtained to unlock the grounding pile and carry out the hanging of the grounding wire; the ground pile management device with the mechanical interlock realizes the purposes of preventing the ground wire from being hung in an electrified way, has the interlock setting and has high safety barrier.

The working principle is as follows: when the grounding box is in a door closing state, the door closing detection mechanism 9 releases the restriction on the restriction cam A13, a key of the lock cylinder A is inserted, the key is rotated by 90 degrees clockwise, the restriction cam A13, the transmission cylinder A20 and the door locking cam 12A are driven to rotate, the pressing on the locking plate A11 is released, the locking plate A11 is jacked upwards under the action of the spring force at the moment, the restriction on the grounding box door is released, and the grounding box door can be opened to carry out temporary grounding wire hanging connection at the moment;

when the grounding wire is hung, the grounding wire clamping detection top plate 4 is pulled down at the moment, and the interlocking of the limiting cam B18 is released; after the grounding box door is closed, the grounding box door closing detection mechanism B14 is jacked open, the restriction on the limiting cam B18 is removed, at the moment, the lock cylinder B2 can be rotated counterclockwise, the limiting cam B18, the transmission cylinder B21 and the second door locking B17 are driven to rotate, and the lock plate B16 is pressed down to lock the grounding box door.

Description figure 5 transformer overhaul lockout logic flow description:

a. disconnecting a high-voltage side switch CB1 of the transformer, and locking the high-voltage side switch CB1 at a test (or maintenance) position to obtain a key K001;

b. disconnecting the transformer low-voltage side circuit breaker CB2 and locking the circuit breaker CB2 at a test (or maintenance) position to obtain a key K002;

c. inserting the obtained keys CB1 and CB2 into a key exchange box, and exchanging two unlocking keys A of the transformer cabinet door keys K003 and K004 and the grounding pile management box;

d. opening the transformer cabinet door by using keys K003 and K004;

e. and unlocking the grounding pile management box by using the key A, and hanging the grounding wire before overhauling the transformer.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a take mechanical interlocking's ground connection stake management device, includes lock core A (1), lock core B (2), ground connection stake management case (3), one side top of ground connection stake management case (3) is fixed connection respectively and is equipped with lock core A (1), lock core B (2), a serial communication port, the inboard bottom swing joint of ground connection stake management case (3) is equipped with the earth connection and articulates bottom plate (5), the top side swing joint that the earth connection articulated bottom plate (5) is equipped with the earth connection and presss from both sides tight detection roof (4), one side of ground connection stake management case (3) is equipped with the chamber door through hinge upset connection, the top side of chamber door just is fixed ground connection A (6), locked groove B (7) respectively with lock core A (1), lock core B (2) mutually perpendicular's position, the bottom side of stake management case (3) is fixed and is equipped with wire casing (8), the inboard symmetry swing joint of ground connection stake management case (3) is equipped with ground connection detection mechanism that closes the door (A 9) A grounding box door closing detection mechanism B (14), wherein one side of the grounding box door closing detection mechanism A (9) and one side of the grounding box door closing detection mechanism B (14) are respectively and movably connected with a limiting mechanism A (10) and a limiting mechanism B (15), one side of the grounding box door closing detection mechanism A (9) far away from the limiting mechanism A (10) and one side of the grounding box door closing detection mechanism B (14) far away from the limiting mechanism B (15) are both movably connected with interlocking mechanisms (19), the bottom sides of the two interlocking mechanisms (19) are both movably connected with springs, the bottom sides of the two springs are respectively movably connected with a grounding box locking plate A (11) and a grounding box locking plate B (16), the inner side of the bottom end of the grounding pile management box (3) is fixedly connected with a connecting column (22), one side of the connecting column (22) is rotatably connected with a hanging plate (23), and one side of the hanging plate (23) is electrically connected with a grounding wire (24).

2. A grounding pile management device with mechanical interlock according to claim 1, characterized in that the interlock mechanism (19) comprises: a door locking cam A (12), a limiting cam A (13), a door locking cam B (17), a limiting cam B (18), a transmission sleeve A (20) and a transmission sleeve B (21), the utility model discloses a ground connection stake management box, including ground connection stake management box (3), lock core A (1), lock core B (2) the inboard and the position relative respectively fixed connection of lock core A (1), lock core B (2) are equipped with lock door cam A (12), lock door cam B (17), one side of lock door cam A (12), one side fixed connection respectively of lock door cam B (17) is equipped with transmission sleeve A (20), transmission sleeve B (21), one side fixed connection respectively of transmission sleeve A (20), one side of transmission sleeve B (21) is equipped with restriction cam A (13), restriction cam B (18), restriction cam A (13), one side of restriction cam B (18) is closed door detection mechanism A (9) with the ground connection case respectively, one side of ground connection case detection mechanism B (14) is closed the door inconsistent.

3. A grounding pile management device with mechanical interlock according to claim 2, characterized in that the lock core A (1) is fixedly arranged with the door locking cam A (12), the limiting cam A (13) and the transmission sleeve A (20) in the same core; the lock core B (2), the door locking cam B (17), the limiting cam B (18) and the transmission sleeve B (21) are fixedly arranged in the same core.

4. A grounding pile management device with mechanical interlock according to claim 1, characterized in that it incorporates a five-prevention lockout system for the transformer.