CN212334255U

CN212334255U - Power equipment earthing for work line key shutting system

Info

Publication number: CN212334255U
Application number: CN202020700226.3U
Authority: CN
Inventors: 李壮; 胡勇健; 陈炎; 冯志延; 孙徳锁; 姚建超
Original assignee: Shenzhen Storage Generating Co ltd
Current assignee: Shenzhen Storage Generating Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-01-12
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a power equipment earthing for work line key shutting system belongs to the technical field of electric power maintenance system. The locking system for the temporary grounding wire key of the power equipment comprises a three-lock-cylinder key exchange box, a grounding wire storage plate and a temporary grounding wire. The temporary grounding wire is placed on the grounding wire storage plate, and the three-lock-cylinder key exchange box is arranged on the grounding wire storage plate. The grounding wire storage plate comprises a key box mounting seat, a grounding wire frame, a hook and a lockset. The three-lock-cylinder key exchange box is installed on the key box installation seat, the grounding wire ground frame is used for placing a connector lug of a temporary grounding wire, the lockset is hung on the grounding wire ground frame, and the hook is used for placing a winding of a copper wire of the temporary grounding wire. By using the locking system, the accurate management of the temporary grounding wire can be realized in the power maintenance process, and the production safety risk caused by manual misoperation is avoided.

Description

Power equipment earthing for work line key shutting system

Technical Field

The utility model relates to a technical field of power maintenance system, specific is a shutting system that is used for standardizing electric power to overhaul earth connection safety operation.

Background

At present, power plants typically employ key lock systems to regulate the isolation of utility equipment. The lock device action locking purely mechanical lock device installed on the electrical equipment replaces a unique key corresponding to the lock device through a key interlocking box to standardize the logic sequence of isolation/recovery operation of the electrical equipment, and when the equipment in the previous operation sequence is operated in place, the operation locking key of the equipment is used for replacing the operation key of the next operation equipment, so that the next operation can be carried out, the possibility of manually changing operation steps is reduced, and the personal safety and the equipment safety during operation and maintenance of the equipment are ensured.

In the prior art, when power equipment is overhauled, temporary grounding wires need to be hung on some equipment for guaranteeing personal safety of maintainers. However, the temporary grounding wire has the characteristics of flexibility, dispersibility and concealment, and can be installed in places (such as a switch cabinet, a reactor chamber and the like) which are not easy to see and are easy to ignore in practical use, for example, a maintainer ignores the existence of the temporary grounding wires due to human factors, so that a malignant misoperation event that the temporary grounding wires are missed to be detached and the switch is closed with the grounding wires occurs, and the safety of personal equipment is greatly damaged.

SUMMERY OF THE UTILITY MODEL

For solving one or more problems in the background art, the utility model provides a power equipment earthing for work line key shutting system guarantees that the electric power personnel overhaul the operation and can in time manage the earthing for work line that is neglected easily, avoids the potential safety hazard that artificial error caused. The specific technical scheme is as follows:

a locking system for a temporary grounding wire key of power equipment comprises a three-lock-cylinder key exchange box, a grounding wire storage plate and a temporary grounding wire; the three-lock-cylinder key box is detachably connected to the grounding wire storage plate, and the temporary grounding wire is arranged on the grounding wire storage plate; the ground wire storage plate comprises a panel, a key box mounting seat, a ground wire rack, a lockset and a hook; the key box mounting seat, the ground wire frame and the hook are all arranged on the panel; the lockset is arranged on one side of the ground wire frame and is detachably connected with the panel; one end of the temporary grounding wire is clamped in the ground wire frame, and the other end of the temporary grounding wire is wound on the hook; the three-lock-cylinder key box is fixedly connected to the key box mounting seat.

Further, the lockset is a bolt lock.

Furthermore, the ground wire frame comprises two convex clamping pieces which are parallel to each other, and the distance between the two clamping pieces is larger than the diameter of the middle position of the temporary ground wire and smaller than the width of the head part and the tail part of the temporary ground wire; the height of the clip is less than the distance of the opposite panel of the latch lock, thereby enabling the latch lock to form a locking structure with the ground frame when the latch lock is closed.

Furthermore, the hook is L-shaped, and the lower end of the L-shaped hook is vertically fixed on the panel.

Furthermore, a first keyhole, a second keyhole and a third keyhole are sequentially arranged on the three-lock-cylinder key exchange box, the three keyholes respectively correspond to external safety keys in sequence, the external safety key corresponding to the second keyhole is an unlocking key of the lockset, and the external safety key corresponding to the third keyhole is an unlocking key of the power equipment to be accessed by the temporary grounding wire.

Further, the system also comprises a management cabinet; the management cabinet comprises cabinet wheels and a cabinet frame, the cabinet wheels are arranged at the bottom of the cabinet frame, and the width of the left side and the width of the right side of the cabinet frame are matched with the length of the panel; the tank bracket is provided with a slot, the slot is detachably connected with the panel, and the width of the slot is matched with the thickness of the panel.

Furthermore, install at least one earth connection storage plate in the management cabinet.

The utility model discloses a power equipment earthing for work line key shutting system compares prior art, and its beneficial effect lies in:

according to the locking system for the temporary grounding wire key of the power equipment, when the temporary grounding wire needs to be hung, the original first safety key is used for unlocking the first keyhole in the temporary grounding wire key exchange box, and the second safety key in the second keyhole and the third safety key in the third keyhole are replaced. The second safety key is used for unlocking a U-shaped lock on a corresponding grounding wire frame, so that a corresponding temporary grounding wire can be taken out, and the third safety key is used as an overhaul safety key of the power equipment. When removing power equipment and keeping apart, if not putting back earthing for work line and obtaining taking out the second safety key on corresponding ground frame, insert the third simultaneously safety key, then can't take out first safety key, whole operation process can't finish to this suggestion operating personnel puts back earthing for work line to the panel, makes operating personnel form effective management and control to earthing for work line, avoids electric power maintainer to omit the potential safety hazard that demolishs earthing for work line and lead to because the error appears.

Drawings

FIG. 1 is an exploded view of one embodiment of the temporary grounding wire key locking system;

FIG. 2 is a schematic view of a management cabinet for storing the latching system of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the triple lock cylinder key exchange box of FIG. 1;

in the figure: the key box comprises a panel 1, a three-lock-cylinder key exchange box 2, a hook 3, a key box mounting seat 4, a bolt lock 5, a ground wire frame 6, a temporary grounding wire 7, a management cabinet frame 8, a slot 9, a cabinet wheel 10, a first keyhole 21, a second keyhole 22 and a third keyhole 23.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent. Certain features or steps of the drawings may be omitted, enlarged or reduced to better illustrate the embodiments, and are not intended to represent the size or composition of the actual product or method. It will be understood by those skilled in the art that certain well-known structures or steps in the drawings and descriptions thereof may be omitted.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "designed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1 to 3, the temporary grounding wire key locking system of the power equipment of the present embodiment includes a panel 1, a three-cylinder key exchange box 2, a hook 3, a key box mounting seat 4, a latch lock 5, a ground wire frame 6, a temporary grounding wire 7, a management cabinet frame 8, a slot 9, and a cabinet wheel 10.

The panel 1 is a square thin plate. The three-lock-cylinder key exchange box 2 is sequentially provided with a first lock hole 21, a second lock hole 22 and a third lock hole 23, and each lock hole corresponds to an external safety key. Screw holes are arranged at the four top corners of the three-lock-core key exchange box 2. The three-cylinder key exchange box 2 uses the existing three-cylinder key exchange box of France STI interlocking company, when the first keyhole 21 is not opened, the keys on the second keyhole 22 and the third keyhole 23 can not be taken out, when the second keyhole 22 and the third keyhole 23 are not simultaneously turned to be closed by using the keys, the key of the first keyhole 21 can not be taken out.

The upper left side of the panel 1 is provided with a key box mounting seat 4, the lower left side is provided with an L-shaped hook 3, and the upper right side is provided with a ground wire frame 6. The key box mounting seat 4 is in a square convex shape, screw holes are formed in positions close to four top corners, and the key box mounting seat and the screw holes of the three-lock-cylinder key exchange box 2 are fixed with each other through screws. The lower end of the L-shaped hook 3 is vertically connected to the panel 1, and the upper end of the L-shaped hook faces upwards. The ground wire frame 6 is composed of two parallel clamping pieces, and each clamping piece is vertically arranged on the panel 1. The bolt lock 5 is arranged on the right side of the ground wire frame 6 on a uniform horizontal line, screw holes are formed in four top corners of the bolt lock 5, and the bolt lock 5 is installed on the panel through screws. The height of the two jaws of the ground frame 6 matches the distance separating the latch of the deadbolt 5 from the panel 1 so that the deadbolt 5 forms a locking structure with the ground frame 6 when closed. The tail end of the temporary grounding wire 7 is wound on the hook 3, the middle part of the temporary grounding wire is hung on the ground wire frame 6 through a locking structure consisting of the ground wire frame 6 and the bolt lock 5, and the head part of the temporary grounding wire is hung on the ground wire frame 6. The external security key corresponding to the second keyhole 22 is an unlocking key of the bolt lock 5, and the external security key corresponding to the third keyhole 23 is an unlocking key of the corresponding power equipment.

The management cabinet frame 8 is a hollow square cabinet. The bottom of the management cabinet frame 8 is provided with cabinet wheels 10 at positions close to the four top corners, and the cabinet wheels 10 are universal wheels. The left side and the right side of the management cabinet frame 8 are both provided with slots 9. The slot 9 is a rectangular groove, and the height of the groove is the same as the thickness of the panel 1. The spacing distance between the grooves on the same side is greater than the length of the lower end of the hook 3 'L'. The width of the left side and the right side of the management cabinet frame 8 is matched with the length of the panel 1.

When the panel 1 is used, the panel 1 can be inserted into the slot 9 of the management cabinet frame 8, and a plurality of temporary grounding wires 7 are conveniently managed. When the temporary grounding wire 7 needs to be taken out, the power overhaul personnel can open the first keyhole 21 by using the external security key corresponding to the first keyhole 21, and then can take out the external security keys corresponding to the second keyhole 22 and the third keyhole 23. The bolt lock 5 is unlocked by an external safety key corresponding to the second keyhole 22, and the temporary grounding wire 7 is taken out. The corresponding power equipment is unlocked by the external security key corresponding to the third keyhole 23, so that the condition of isolating and overhauling the power equipment is met. When the isolation of the power equipment needs to be released, the temporary grounding wire 7 needs to be placed back to the ground wire frame 6, the bolt lock 5 is closed to form a locking structure for the temporary grounding wire 7 with the ground wire frame 6, the external safety key corresponding to the second keyhole 22 of the bolt lock 5 is taken out, then two external safety keys corresponding to the second keyhole 22 and the third keyhole 23 are put into the three-lock-cylinder key exchange box 2 to be locked and replaced by the external safety key corresponding to the first keyhole 21, and the whole operation flow of power overhaul can be completed.

The effect of this embodiment is that, by adding the second keyhole 22 corresponding to the external security key to control the locking structure of the latch lock 5 and the ground wire rack 6, a condition that the corresponding external security key on the first keyhole 21 can be replaced to complete the maintenance process is formed in the operation process by replacing the temporary grounding wire 7 to obtain the second external security key. Through the establishment of corresponding structure to aforementioned condition for operating personnel can not accomplish whole operation flow when omitting, neglecting to tear earthing for work line 7 open, thereby suggestion operating personnel has the safety risk, guarantees that power equipment overhauls according to standard, safe and orderly's development, avoids electric power production and power consumption safety risk. The introduction of the management cabinet frame 8 facilitates the management operation of the temporary grounding wire 7 on a plurality of devices to be overhauled by electric power overhaul personnel at the same time.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A locking system for a temporary grounding wire key of power equipment comprises a three-lock-cylinder key exchange box, a grounding wire storage plate and a temporary grounding wire; the three-lock-cylinder key box is detachably connected to the grounding wire storage plate, and the temporary grounding wire is arranged on the grounding wire storage plate; the method is characterized in that: the ground wire storage plate comprises a panel, a key box mounting seat, a ground wire rack, a lockset and a hook; the key box mounting seat, the ground wire frame and the hook are all arranged on the panel; the lock is arranged on one side of the ground wire frame and is detachably connected with the panel; one end of the temporary grounding wire is clamped in the ground wire frame, and the other end of the temporary grounding wire is wound on the hook; the three-lock-cylinder key box is fixedly connected to the key box mounting seat.

2. The electrical equipment temporary grounding wire key locking system as claimed in claim 1, wherein: the lockset is a latch lock.

3. The electrical equipment temporary grounding wire key locking system as claimed in claim 2, wherein: the ground wire frame comprises two convex clamping pieces which are parallel to each other, and the distance between the two clamping pieces is larger than the diameter of the middle position of the temporary ground wire and smaller than the width of the head part and the tail part of the temporary ground wire; the height of the clip is less than the distance of the opposite panel of the latch lock, thereby enabling the latch lock to form a locking structure with the ground frame when the latch lock is closed.

4. The electrical equipment temporary grounding wire key locking system as claimed in claim 3, wherein: the hook is L-shaped, and the lower end of the L-shaped hook is vertically fixed on the panel.

5. The electrical equipment temporary grounding wire key locking system as claimed in claim 4, wherein: the three-lock-cylinder key exchange box is sequentially provided with a first lock hole, a second lock hole and a third lock hole, the three lock holes respectively correspond to external keys in sequence, the external safety key corresponding to the second lock hole is the unlocking key of the lockset, and the external safety key corresponding to the third lock hole is the unlocking key of the power equipment to be accessed by the temporary grounding wire.

6. The electrical equipment temporary grounding wire key locking system as claimed in claim 5, wherein: the device also comprises a management cabinet; the management cabinet comprises cabinet wheels and a cabinet frame, the cabinet wheels are arranged at the bottom of the cabinet frame, and the width of the left side and the width of the right side of the cabinet frame are matched with the length of the panel; the tank bracket is provided with a slot, the slot is detachably connected with the panel, and the width of the slot is matched with the thickness of the panel.

7. The electrical equipment temporary grounding wire key locking system as claimed in claim 6, wherein: at least one grounding wire storage plate is installed in the management cabinet.