CN106654743B

CN106654743B - Locking and unlocking device for temporary grounding wire

Info

Publication number: CN106654743B
Application number: CN201611240003.8A
Authority: CN
Inventors: 谢小渭; 梁海坤; 黄建林; 郑爱民; 吴化洪
Original assignee: Changyuan Contron Power Security Technology Co Ltd
Current assignee: Changyuan Contron Power Security Technology Co Ltd
Priority date: 2016-12-28
Filing date: 2016-12-28
Publication date: 2022-09-06
Anticipated expiration: 2036-12-28
Also published as: CN106654743A

Abstract

The invention discloses an unlocking and locking device for a temporary grounding wire, and belongs to the technical field of power equipment safety. The device comprises a computer key, a temporary grounding wire and a ring buckle grounding wire lock; the computer key unlocks the ring buckle ground wire lock; the grounding end of the temporary grounding wire is fixedly connected with the ring buckle ground wire lock, and the hanging end of the temporary grounding wire can be connected to the ring buckle ground wire lock or separated from the lock body of the ring buckle ground wire lock; the ring buckle ground wire lock can enable the temporary ground wire to be in a state of being folded back and incapable of meeting hanging requirements in length or enable the temporary ground wire to be in a free extension state; and the hanging end of the temporary grounding wire is provided with an identity mark which can be read and represents the identity of the temporary grounding wire. The temporary grounding wire unlocking and locking device capable of effectively preventing the phenomenon of missing disassembly reduces the occurrence of misoperation accidents of closing with the ground.

Description

Locking and unlocking device for temporary grounding wire

Technical Field

The invention belongs to the technical field of power equipment safety, and particularly relates to a device for unlocking a temporary grounding wire.

Background

In order to maintain the safe and stable operation of the power grid, the electrical equipment and lines need to be inspected or periodically repaired and maintained before commissioning. The hanging or dismantling of the temporary grounding wire is a very important operation in the maintenance process, and is not only related to the life safety of operators in the maintenance process, but also related to the safe and stable operation of the whole power grid in the power transmission process after maintenance.

In order to guarantee the personal safety during the working process of detection or regular maintenance before commissioning and avoid the occurrence of power grid safety accidents during the power transmission process after the maintenance, a large amount of manpower and material resources are input by a plurality of power grid operation companies, power safety equipment and system service providers to research operation equipment, a control system and a control method for preventing temporary grounding wire storage, wrong hanging, wrong dismounting, mixed use and the like, and certain effects are achieved. For example, the independent ground wire management system solves the problems that the temporary ground wire cannot be taken away randomly, only the temporary ground wire with the corresponding unlocking number can be taken away when in use, and the situation that the ground wire is not used according to the number is solved; the ground wire management system combined with the microcomputer anti-misoperation system realizes effective management and state monitoring of the temporary ground wire; the real-time ground wire management system can track and detect the hanging position and state of each group of temporary ground wires in real time through a wireless network, and realizes the management of the temporary ground wires in a non-use state.

However, at present, phenomena of hanging leakage, detaching leakage and the like of the grounding wire still occur sometimes because field operators are careless in the operation and use process of the temporary grounding wire and supervision is not in place. How to solve the problems of missed hanging, missed dismantling and the like of the grounding wire by using a technical means is a great problem of safe production and management of the power system.

Disclosure of Invention

The invention aims to: the temporary grounding wire unlocking and locking device can effectively prevent the phenomenon of missing disassembly, and reduces the occurrence of misoperation accidents of 'closing with the ground'.

The technical scheme for realizing the aim of the invention is as follows: a locking and unlocking device for a temporary grounding wire comprises a computer key, the temporary grounding wire and a ring buckle grounding wire lock; the computer key unlocks the ring buckle ground wire lock; the ground end of the temporary grounding wire is fixedly connected with the ring buckle ground wire lock, and the hanging end of the temporary grounding wire can be connected to the ring buckle ground wire lock or separated from the lock body of the ring buckle ground wire lock.

The ring buckle ground wire lock can enable the temporary ground wire to be in a state of being folded back and incapable of meeting hanging requirements in length or enable the temporary ground wire to be in a free extension state;

and the hanging end of the temporary grounding wire is provided with an identity mark which can be read and represents the identity of the temporary grounding wire.

According to the invention, the temporary grounding wire can be in a state of turning back and having a length which cannot meet the hanging requirement or in a state of freely extending to meet the use requirement by unlocking the lock, and the identity mark which can be read by a computer key or other readers in an error prevention system is arranged at the hanging end of the temporary grounding wire, so that the state of unlocking the lock and hanging the temporary grounding wire is formed, the identity mark of the temporary grounding wire cannot be read by the computer key, and the identity mark of the temporary grounding wire can be read by the computer key only in the state that the temporary grounding wire is detached, so that the effect of preventing the temporary grounding wire from being missed in disassembly is achieved.

More specifically, when the ring buckle ground wire lock is locked, the ring buckle ground wire lock enables the temporary ground wire to be in a state of being folded back and incapable of meeting hanging requirements in length; when the buckle ground wire lock is unlocked, the temporary ground wire is in a free extension state.

More specifically, when the buckle ground wire lock is locked, the identification mark arranged at the hanging end of the temporary ground wire is hidden in the lock body of the buckle ground wire lock and cannot be read.

More specifically, when the buckle ground wire lock is unlocked, the identification mark arranged on the hanging end of the temporary grounding wire is separated from the lock body of the buckle ground wire lock along with the hanging end and can be read.

Through the design of the structure of the ring buckle ground wire lock, when the ring buckle ground wire lock is locked, the identity mark arranged at the hanging end of the temporary grounding wire is hidden in the lock body of the ring buckle ground wire lock and cannot be read by a computer key, and only when the ring buckle ground wire lock is unlocked, the identity mark on the temporary grounding wire can be read by the computer key, so that the state of the temporary grounding wire can be further judged, and whether the temporary grounding wire is likely to be missed to be dismounted is checked.

Specifically, the loop ground wire lock comprises a first wire clamp part and a second wire clamp part which are respectively sleeved on the hanging end and the grounding end of the temporary ground wire in a corresponding manner, and the identity mark representing the identity of the temporary ground wire is arranged on the first wire clamp part; when the buckle ground wire lock is unlocked, the first wire clamp part can be separated from the lock body of the buckle ground wire lock.

Specifically, the loop-buckle ground wire lock comprises a first wire clamp part and a second wire clamp part which are respectively sleeved on the hanging end and the grounding end of the temporary ground wire in a corresponding manner, and the first wire clamp part is provided with an identity mark representing the identity of the temporary ground wire; when the buckle ground wire lock is unlocked, the first wire clamp part can be separated from the lock body of the buckle ground wire lock; when the buckle ground wire lock is locked, the temporary ground wire is in a state of turning back and the length of the temporary ground wire cannot meet the hanging requirement; according to the ring buckle ground wire lock, the temporary ground wire can be in a state that the temporary ground wire is turned back and the length cannot meet the hanging requirement or the temporary ground wire is in a state that the temporary ground wire can be freely extended to meet the use requirement through unlocking, and the identity mark which can be read by a computer key is arranged at the hanging end of the temporary ground wire in an indirect mode, so that the state that the temporary ground wire is unlocked through the locking device and the temporary ground wire is hung is formed, the identity mark of the temporary ground wire cannot be read by the computer key, and the identity mark of the temporary ground wire can be read by the computer key only in the state that the temporary ground wire is detached, so that the effect of preventing the temporary ground wire from being detached is achieved.

More specifically, when the buckle ground wire lock is locked, the buckle ground wire lock enables the temporary ground wire to be connected end to end, and the identification mark arranged in the first wire clamp portion is hidden in the lock body of the buckle ground wire lock and cannot be read.

More specifically, when the buckle ground wire lock is unlocked, the first clip part is separated from the lock body of the buckle ground wire lock, and the identification mark arranged in the first clip part can be read.

The following further additional features serve to define all of the aforementioned aspects, and are hereby incorporated for simplicity of presentation.

Specifically, the first wire clamp part comprises a first fixed clamping block, a first movable clamping block and a first chip holder; the first fixed clamping block and the first movable clamping block are detachably connected through a fastener penetrating from the first fixed clamping block to the first movable clamping block; the first chip seat is detachably connected with the first fixed clamping block through a fastener penetrating from the first chip seat to the first fixed clamping block; when the first clamping part is connected to the lock body, the side wall of the first code chip seat, which is far away from the first fixed clamping block, is clung to the side wall of the lock body or is accommodated in the first accommodating groove.

More specifically, a locking circular hole is formed in the upper portion, away from the side wall of the first fixed clamping block, of the first chip seat, a locking ring table is formed on the circumferential inner wall of the locking circular hole, close to the outer end face of the locking circular hole, and a fan-shaped notch extending axially from the outer end face of the locking circular hole is further formed in the circumferential inner wall of the locking circular hole; the fan-shaped notch is communicated with a sunken part forming the locking ring platform; the lower part of the first chip seat, which is far away from the side wall of the first fixed clamping block, is provided with a chip groove, and an identity mark for representing the identity of the temporary grounding wire is arranged in the chip groove.

More specifically, the lock body is provided with an unlocking mechanism and an unlocking accommodating groove for accommodating the unlocking mechanism, the unlocking mechanism unlocks the first clamp part, the unlocking mechanism comprises a lock knob sleeve, a lock knob and a locking mechanism, and the lock knob sleeve is connected with the lock knob; the locking mechanism can limit the lock knob, so that the lock knob is in a rotatable state or a rotation limiting state.

More specifically, the lock knob is integrally columnar, and a lock knob limiting pin is arranged at one end of the lock knob close to the lock knob sleeve; the lock knob is also sequentially sleeved with a lock knob reset torsion spring, a reset torsion spring clamping plate and a self-locking sleeve reset spring; one end of the lock knob reset torsion spring is connected with the lock knob limiting pin, and the other end of the lock knob reset torsion spring is connected with the reset torsion spring clamping plate; one end of the self-locking sleeve return spring is fixed on the return torsion spring clamping plate.

More specifically, the locking mechanism comprises a self-locking sleeve and a locking hook, and the self-locking sleeve is sleeved outside the self-locking sleeve return spring nested on the lock knob; the locking hook is arranged at one end, close to the first wire clamp part, of the lock knob, and can be matched with a locking ring platform on the first wire clamp part.

More specifically, a locking hook accommodating groove is axially formed in the right end of the lock knob from the end face, and a pin hole is formed in the right end face close to the lock knob and perpendicular to the side wall face of the locking hook accommodating groove; the locking hook is approximately hammer-shaped and comprises a hook handle and a hook body which are integrally formed, and the bottom of the hook body and the lower part of the hook handle are provided with locking hook reset spring accommodating grooves along the extension direction of the hook handle; and a mounting hole is formed in the direction perpendicular to the side wall surface of the locking hook return spring accommodating groove on the hook body of the locking hook, and the locking hook return spring are mounted on the lock knob through a connecting pin penetrating through the pin hole.

More specifically, the self-locking sleeve is integrally cylindrical, when the self-locking sleeve is nested on the lock knob, one end of the self-locking sleeve close to the locking hook is provided with a groove along the axial wall surface of the self-locking sleeve, and the bottom of the groove is provided with a notch which can be matched with the locking hook.

More specifically, a travel switch fixing seat is installed in the lock body, and a travel switch is installed in the travel switch fixing seat.

More specifically, a boss is arranged at the lower part of the self-locking sleeve, and a travel switch control spring for controlling the on/off of the travel switch is arranged in the boss.

More specifically, a lock knob identification mark which can be read and represents the lock knob or the lock body identity is arranged in the lock body of the temporary grounding wire.

According to the unlocking and locking device for the temporary grounding wire, unlocking and locking functions of the temporary grounding wire are realized through a computer and a ring buckle grounding wire lock, the temporary grounding wire is in a state that the temporary grounding wire is turned back and the length cannot meet the hanging requirement, or the temporary grounding wire is in a state that the temporary grounding wire is freely stretched to meet the use requirement, and an identity mark which can be read by a computer key or other readers in an anti-misoperation system is arranged at the hanging end of the temporary grounding wire, so that the ring buckle grounding wire lock is locked, the temporary grounding wire is in a state that the temporary grounding wire is turned back and cannot be hung, the identity mark of the temporary grounding wire cannot be read by the computer key, and the identity mark of the temporary grounding wire can be read by the computer key only when the temporary grounding wire is disassembled, so that the effect of preventing the temporary grounding wire from being disassembled is achieved.

Drawings

Figure 1 is a full sectional view of the buckle ground lock.

Fig. 2 is a schematic view of the overall structure of the buckle ground line lock.

Figure 3 is an exploded view of the buckle ground lock as a whole.

Fig. 4 is a sectional view of the first clip portion.

Fig. 5 is an exploded view of the first clip portion.

Fig. 6 is a side view of the first clip portion.

Figure 7 is a side view of the lock body.

Fig. 8 is a schematic view of the construction of the lock knob of fig. 3.

Fig. 9 is an exploded view of the self-locking mechanism of fig. 3.

Fig. 10 is an enlarged schematic view of the self-locking sleeve.

Figure 11 is a schematic view of the internal structure of the buckle ground lock in the locked state.

Figure 12 is a schematic view of the internal structure of the buckle ground lock in the unlocked state.

Fig. 13 is a schematic structural view of the buckle ground wire lock in a locked state with the temporary ground wire.

Fig. 14 is a schematic structural view of the temporary grounding wire and the buckle ground wire lock in an unlocked state.

Fig. 15 is a block diagram showing a configuration of a temporary ground wire locking device control system.

Fig. 16 is a block diagram showing another configuration of a temporary earth wire locking device control system.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

As shown in fig. 15, a control system for preventing electrical misoperation includes a misoperation prevention host, a temporary grounding wire unlocking subsystem, a temporary grounding pile and an unlocking subsystem; the temporary grounding wire and unlocking subsystem comprises a ring buckle grounding wire lock (also called ring buckle locking device or ring grounding wire lock) and a temporary grounding wire; the temporary grounding pile and the unlocking subsystem comprise a computer key, a communication adapter, a temporary grounding pile locking lockset (locking lockset for short) and a temporary grounding pile.

As shown in fig. 16, the control system for preventing electrical misoperation is a variant form, and includes a misoperation prevention host, a computer key, a communication adapter, a temporary grounding wire unlocking subsystem, a temporary grounding pile and an unlocking subsystem; the temporary grounding wire and unlocking subsystem comprises a ring buckle grounding wire lock (also called ring buckle locking device or ring grounding wire lock) and a temporary grounding wire; the temporary grounding pile and unlocking subsystem comprises a temporary grounding pile locking lockset (short for locking lockset) and a temporary grounding pile.

And anti-error management software is configured in the anti-error host, and is mainly used for processing task reservation of the temporary grounding wire, generating an electronic operation ticket comprising an operation step and a verification step and issuing the electronic operation ticket to a computer key.

The computer key is carried by an operator and is connected with the anti-misoperation host through a communication adapter in a wireless communication mode, and the communication adapter and the computer key can be integrally manufactured. The computer key can receive and display the operation order information of the task, can identify the identity of objects (such as locking devices of a temporary grounding wire, a temporary grounding pile and the like) on the task site (such as reading a radio frequency code sheet), then carries out unlocking or locking, state identification and recording on the corresponding site, and also feeds back the task progress to the anti-misoperation host.

The locking lockset is arranged on a temporary grounding pile located on an overhaul site, when the locking lockset is locked, the temporary grounding wire and the temporary grounding pile cannot be effectively hooked (connected) according with the regulations, and the temporary grounding wire can be effectively hooked on the temporary grounding pile only after unlocking. The computer key can unlock the locking lockset.

As shown in fig. 1, 13 and 14, a temporary grounding wire and unlocking device includes a temporary grounding wire 11a (the temporary grounding wire includes a temporary grounding wire body, a hanging end, and a grounding end), a loop-fastening ground wire lock (the loop-fastening ground wire lock may also be a part of the temporary grounding wire), and a computer key (not shown). As shown in fig. 13, the buckle ground wire lock includes a lock body 1a, a first clip part 2a and a second clip part 3a, wherein a first ID chip 2032a with an identification is installed in the first clip part 2a to represent the identity and number of the temporary ground wire, and the ID code corresponds to the number representing the position of the temporary ground stud; the first wire clamp part 2a and the second wire clamp part 3a are respectively sleeved on a hanging connection end 12a and a grounding end 13a of the temporary grounding wire 11 a; the computer key unlocks and locks the ring buckle ground wire lock. The annular buckle ground wire lock is internally provided with a unlocking mechanism 6a, and when the annular ground wire lock is unlocked through a computer key, the unlocking mechanism 6a automatically locks the computer key so that the computer key cannot be pulled out.

As shown in fig. 1 and 2, a first receiving groove 4a and a second receiving groove 5a are respectively formed in a right side portion and a lower side portion of the lock body 1a (in the present invention, all of left, right, upper, lower, etc. directions are based on a paper plane in which the lock body 1a is located in fig. 13, a direction indicated by a horizontal arrow is right, a direction indicated by a longitudinal arrow is up, and an outward direction perpendicular to the paper plane is front). Wherein, a part or the whole of the first wire clip part 2a is received in the first receiving groove 4a, and is connected to or separated from the lock body 1a by the unlocking mechanism 6a in the lock body 1 a. The second wire clamp portion 3a is partially or completely accommodated in the second accommodation groove 5a, and is connected and assembled with the lock body 1a through the limiting mechanism 7 a.

As shown in fig. 3, 4, 5, 6, and 13, the first wire clamp portion 2a includes a first chip holder 203a, a first fixed clamp block 201a, and a first movable clamp block 202a arranged in left, middle, and right directions; the upper end and the lower end of the first fixed clamping block 201a are provided with threaded through holes 2011a, and the threaded through holes 2011a are internal threads; a threaded through hole 2021a corresponding to the threaded through hole 2011a is formed at the upper end and the lower end of the first movable clamping block 202a, and the screw 204a realizes fastening of the first fixed clamping block 201a and the first movable clamping block 202a sequentially through the threaded through hole 2011a and the threaded through hole 2021 a; i.e. the head of the screw 204a is located to the left of the first fixed clamping block 201 a. The first wire clamp portion 2a is fixedly sleeved on the hanging end 12 a.

A first chip seat 203a is fastened on the left side (the side far away from the first movable clamping block 202 a) of the first fixed clamping block 201a through a hexagon bolt 205a, and the head of the hexagon bolt 205a is located on the left side of the first chip seat 203a, in this embodiment, the first chip seat 203a is adapted to the first accommodating groove 4a, a locking circular hole is formed in the upper portion of the first chip seat 203a, a locking annular table 2031a is formed at the left end (outer end) of the locking circular hole in a manner of local depression along the circumferential inner wall of the locking circular hole, and a fan-shaped notch 2035a extending from the left end surface of the locking circular hole along the axial direction is further formed on the circumferential inner wall of the locking circular hole; the indentation 2035a communicates with the depression forming the latch ring land 2031 a. The locking mechanism 6a unlocks the first clip portion 2a by using the locking loop 2031a and the indentation 2035a, so as to connect or disconnect the first clip portion 2a with or from the lock body 1 a. A chip groove is formed in the lower portion of the first chip holder 203a, and a first ID chip 2032a representing the identity of the temporary ground line is mounted in the chip groove and fixed to the first chip holder 203a by a chip cover plate 2033 a. As shown in fig. 13, when the first clip part 2a is locked by the unlocking structure 6a using the locking collar 2031a, the first code piece seat 203a is adapted to the first receiving groove 4a, the left sidewall of the first code piece seat 203a is tightly attached to the right sidewall of the lock body 1a, and the head of the hex bolt 205a is hidden between the left sidewall of the first end code piece seat 203a and the right sidewall of the lock body 1a, so as to prevent the first clip part from being broken.

As shown in fig. 1, 3 and 13, the second wire clamp portion 3a includes a second fixed clamping block 301a and a second movable clamping block 302a arranged up and down, and the second fixed clamping block 301a and the second movable clamping block 302a are fastened by a stud bolt; the head of the stud screw is located on the upper side of the second fixed clamping block 301 a; the second clip portion 3a is fixedly fitted to the ground terminal 13 a. The upper portion of the second fixing clamping block 201a is provided with a second wire clamp portion bolt mounting hole 303a, the limiting mechanism 7a is in threaded connection with the second wire clamp portion bolt mounting hole 303a to achieve connection and assembly of the second wire clamp portion 3a and the lock body 1a, and the limiting mechanism 7a is a hexagon socket head cap screw in this embodiment. When the first wire clamp part 2a is connected with the lock body 1a, the head parts of the limiting mechanism 7a and the stud screws connecting the second fixed clamping block 301a and the second movable clamping block 302a are all hidden in the lock body, so that the breaking and dismantling prevention effect is achieved.

As shown in fig. 1 and 3, a cover plate 9a is disposed on the left side of the lock body, and a second ID chip 2034a which is capable of being read and represents a lock knob or an identity of the lock body is installed in the cover plate 9a, thereby facilitating area management and voltage class classification management of the temporary grounding wire. A stroke switch holder 10b is attached to an upper end of the second clip portion 3a, and a stroke switch 10c electrically connected to the second ID chip 2034a is provided in the stroke switch holder 10 b. By turning on/off the travel switch 10c and the second ID code chip 2034a, it is determined that the computer key can/cannot read the information in the second ID code chip 2034a, thereby affecting the capability/inability of the computer key to be inserted into the lock knob.

As shown in fig. 1, 3, 8, 9 and 10, an unlocking accommodating groove 8a for accommodating the unlocking mechanism 6a is formed in the lock body 1a, the unlocking mechanism 6a includes a knob sleeve 601a, a knob 602a and a locking mechanism 603a, and the knob sleeve 601a is connected to the knob 602 a.

As shown in fig. 1, 3, 8 and 9, the lock knob 602a is generally cylindrical, a lock knob limit pin 6021a is installed at one end of the lock knob 602a close to the lock knob sleeve 601a, and the lock knob limit pin 6021a is used for unlocking and resetting the lock knob 602a and limiting an unlocking angle. A lock knob reset torsion spring 6022a, a reset torsion spring snap plate 6023a and a self-locking sleeve reset spring 6025a are sequentially sleeved on the lock knob 602a from left to right; the reset torsion spring clamping plate 6023a can be fixed on the inner wall of the lock knob sleeve 601a, the lock knob 602a can rotate around an axis relative to the reset torsion spring clamping plate 6023a, one end of the lock knob reset torsion spring 6022a is connected with the lock knob limiting pin 6021a, and the other end is connected with the reset torsion spring clamping plate 6023 a; the lock button return torsion spring 6022a forms torsion in the unlocking process through the fixing effect of the return torsion spring snap plate 6023a, and provides rotation power for the lock button 602a during return. One end of the self-locking sleeve return spring 6025a is fixed on the return torsion spring snap plate 6023 a.

As shown in fig. 1, 3, 8, and 9, the locking mechanism 603a includes a self-locking sleeve 6031a, a locking hook 6032a, and a locking hook return spring 6033 a. The self-locking sleeve 6031a is sleeved outside the self-locking sleeve return spring 6025a nested on the lock knob 602a, and one end of the self-locking sleeve return spring 6025a is fixed on the inner wall of the self-locking sleeve 6031 a. An interlocking hook accommodating groove 6026a is axially formed in the right end of the lock knob 602a from the end surface, and a pin hole 6024a is formed in the right end surface close to the lock knob 602a and perpendicular to the side wall surface of the interlocking hook accommodating groove 6026 a. The locking hook 6032a is substantially hammer-shaped and includes a hook shank and a hook body which are integrally formed, and a receiving groove for the locking hook return spring is formed in the bottom of the hook body and the lower portion of the hook shank along the extending direction of the hook shank; a mounting hole is formed in the direction perpendicular to the side wall surface of the accommodating groove of the locking hook return spring on the hook body of the locking hook, and the locking hook 6032a and the locking hook return spring 6033a are mounted on the lock knob 602a through a connecting pin penetrating through the pin hole 6024 a; the free end of the hook stem of the latch hook 6032a faces the bottom of the latch hook receiving groove 6026 a; the upper portion of the hook body of the locking hook 6032a can be adapted to the locking ring table 2031a (the structure and installation of the locking hook can directly adapt to the locking ring table 2031a without rotating a lock knob (computer key) by the action of the locking hook return spring 6033a during the locking process).

As shown in fig. 9 and 10, the self-locking sleeve 6031a is integrally cylindrical, when the self-locking sleeve 6031a is nested on the lock knob, a stepped groove 6031b is formed at one end close to the locking hook 6032a along an axial wall surface of the self-locking sleeve 6031a, a notch 6031c is formed at a stepped bottom of the groove 6031b, and bottom surfaces of the groove 6031b and the notch 6031c can be matched with the locking hook 6032 a.

As shown in fig. 7, 9, and 10, a boss 6031d is provided at a lower portion of the self-locking sleeve 6031a, and a stroke switch control spring 10a for controlling on/off of the stroke switch 10c is installed therein. An n-shaped notch 101a matched with the boss 6031d is formed in the lock body 1, so that the self-locking sleeve 6031a cannot rotate around an axis, namely, the rotation angle is restrained, and the self-locking sleeve 6031a can only move axially along the lock knob 602 a.

The second ID chip 2034a is electrically connected to the travel switch 10c via a connecting lead. When the travel switch 10c is turned on (i.e., the travel switch control spring 10a abuts against the travel switch), the second ID code chip 2034a and the travel switch 10c form a closed electronic loop, and when the annular ground wire lock is operated by using the computer key, the code value of the second ID code chip 2034a can be read to perform the unlocking operation; when the travel switch 10c is turned off (i.e., when the travel switch control spring 10a is moved away from the travel switch), the code value of the second ID code chip 2034a is invalidated due to the electronic circuit being cut off, and when the circular earth wire lock is operated by the computer key, the authorized operation of the computer key is rejected due to the code value of the second ID code chip 2034a being invalid.

As shown in fig. 13, when the ground wire lock is locked, the ground wire lock makes the hanging end 12a of the temporary ground wire 11a and the grounding end 13a connected end to form a ring shape, so that the length of the temporary ground wire 11a cannot meet the hanging requirement, i.e. the temporary ground wire 11a is in a state of being unable to be turned back; meanwhile, the first ID chip 2032a in the first wire clamping portion is hidden between the left side wall of the first chip holder 203a and the right side wall of the lock body 1a, and cannot be read by a computer key, indicating that the temporary grounding wire is in an un-hooked state and in an unavailable state. The possibility of illegal operation is eliminated, the temporary grounding wire is confirmed to be removed, and the correctness of the whole operation is guaranteed forcibly. Simultaneously, when the latch closure earth wire lock is in the shutting state, the installation screw all is hidden, and the latch closure earth wire lock adopts totally enclosed structural design promptly, and unable dismantlement possesses reliable pick-proof, anti-shear, impact resistance simultaneously.

As shown in fig. 14, the state of the latch-type ground wire lock is opened by a computer key (not shown), and the computer key cannot be taken out in the opened state; when the buckle ground wire lock is unlocked, the first wire clamp part 2a in the buckle ground wire lock can be pulled out from the lock body 1a and separated from the lock body 1a, the first ID code chip 2032a of the first wire clamp part 2a can be read by a computer key, the temporary grounding wire is shown to be in an unretracted or hooked state, the working personnel is reminded to recover or remove, and the anti-dismantling leakage is realized.

The following is a temporary grounding wire and an unlocking and locking device, and the specific operation steps are carried out during unlocking and locking.

1) When the temporary grounding wire and the unlocking and locking device are unlocked:

as shown in fig. 1, 11, 12 and 14, in the ring-shaped ground line lock in the locked state, the first wire clamp portion 2a is fit with the locking hook 6032a in the lock body 1a through the locking ring platform 2031a in the first code piece holder 203a, so as to be firmly closed in the first receiving groove 4 a. At this time, the self-locking sleeve 6031a is pushed to approach the return torsion spring snap-plate 6023a by the action of the first wire clamp part 2a, and the notch 6031c at the bottom of the groove 6031b at the right end of the self-locking sleeve 6031a has no restraining effect on the locking hook 6032 a. Meanwhile, under the action of the stroke switch control spring 10a in the boss 6031d at the bottom of the self-locking sleeve 6031a, the stroke switch 10c is switched on, the second ID code chip 2034a is in a closed electronic loop state, and the second ID code chip 2034a can authorize unlocking of the computer key.

When the computer key is used to unlock, the lock knob 602a can rotate in the circumferential direction (in this embodiment, the lock knob can rotate 65 °), and the locking hook 6032a is driven to rotate. When the knob 602a rotates 65 °, the knob 602a drives the locking hook 6032a to be located in the sector indentation 2035a of the locking circular hole on the first cable clamp portion 2 a. At this time, the self-locking sleeve 6031a moves rightward under the action of the self-locking sleeve return spring 6025a and ejects the first clip part 2a (i.e., the annular ground wire lock is successfully unlocked).

Meanwhile, after the computer key unlocking operation is completed, the lock knob 602a performs a corresponding reset action under the action of the lock knob reset torsion spring 6022 a. At this time, under the action of the lock knob reset torsion spring 6022a, the locking hook 6032a enters the notch 6031c of the self-locking sleeve 6031a, and the lock knob 602 can not rotate freely any more due to the constraint of the locking hook 6032a, thereby realizing the function of automatic locking after unlocking.

Meanwhile, as the self-locking sleeve 6031a moves rightwards, the travel switch control spring 10a on the boss at the bottom of the self-locking sleeve 6031a leaves the travel switch 10c, so that the electronic loop of the second ID code chip 2034a is in a cut-off state and cannot generate an effective code value, and a computer key cannot unlock the unlocked annular ground wire lock, thereby perfectly realizing the functions of mechanical self-locking and intelligent self-locking in the unlocking state.

At this time, the loop ground wire lock is in an unlocked state, the first clip part 2a is separated from the loop ground wire lock body, and the first ID code chip 2032a can be read by a computer key, so that whether the hanging position of the temporary ground wire 11a corresponds to the temporary ground pile or not is determined.

2) When the temporary grounding wire and the unlocking device are locked:

when the locking groove 6032a is movably arranged in the locking hook accommodating groove 6026a, as shown in fig. 1, 11, 12 and 13, the first wire clip part 2a is inserted into the first accommodating groove 4a, the self-locking sleeve 6031a is pushed to be close to the reset torsion spring clamping plate 6023a due to the action of the first wire clip part 2a, and the notch 6031c at the bottom of the groove 6031b at the right end of the self-locking sleeve 6031a has no constraint effect on the locking hook 6032 a; at this time, the travel switch control spring 10a at the bottom of the self-locking sleeve 6031a acts to turn on the travel switch, so that the second ID code chip 2034a generates a valid code value, and then the computer key can perform authorized locking operation. In the process of closely fitting the first wire clamp portion 2a to the first receiving groove 4a (i.e., in the process of moving the locking hook 6032a forward (without rotation)), the locking hook 6032a rotates around the connecting pin passing through the pin hole 6024a as a rotation axis by being pressed by the locking ring stand 2031a, and the hook body partially or completely enters the locking hook receiving groove 6026a downward. Until the first wire clamp portion 2a is tightly attached to the first receiving groove 4a, the locking hook return spring 6033a makes the hook body of the locking hook 6032a bounce upward to match with the locking ring stand 2031a in the first wire clamp portion 2a, i.e. the locking hook 6032a firmly locks the first wire clamp portion 2a in the first receiving groove 4a (i.e. the annular ground wire lock is in a locked state). At this time, the latch ground wire lock is in a locked state, and the temporary ground wire 11a is in an unavailable state in an end-to-end connection manner.

Certainly, when the locking hook 6032a is directly and fixedly arranged at the right end of the locking knob 602a, as shown in fig. 1, fig. 11, fig. 12 and fig. 13, the first wire clip part 2a is inserted into the first accommodating groove 4a, the self-locking sleeve 6031a is pushed to be close to the reset torsion spring snap plate 6023a due to the action of the first wire clip part 2a, and the notch 6031c at the bottom of the groove 6031b at the right end of the self-locking sleeve 6031a has no constraint effect on the locking hook 6032 a; at this time, the travel switch control spring 10a at the bottom of the locking sleeve 6031a acts to turn on the travel switch, so that the second ID code chip 2034a generates a valid code value, and thus the computer key can perform authorized locking operation, and drive the lock knob 602a, further drive the locking hook 6032a to rotate, so that the locking hook 6032a is adapted to the locking ring stand 2031a in the first cable clamp portion 2a, that is, the locking hook 6032a firmly locks the first cable clamp portion 2a in the first receiving groove 4a (i.e., the annular ground wire lock is in a locked state). At this time, the latch ground wire lock is in a locked state, and the temporary ground wire 11a is in an unavailable state in an end-to-end connection manner.

It should be noted that, based on the above embodiment, the ground wire loop lock may not be necessarily disposed at both ends of the temporary ground wire, but may be disposed at a relevant position of the temporary ground wire, and it only needs to be ensured that when the ground wire loop lock is in a locked state, the temporary ground wire is in a state of being turned back and having a length that cannot meet a hooking requirement; when the buckle ground wire lock is in an unlocked state, the temporary ground wire is in a state of freely extending to meet the use requirement, and the corresponding purpose can be achieved. In addition, the identification (i.e., the first ID chip) representing the temporary grounding wire may also be directly disposed at the hanging end of the temporary grounding wire, instead of being disposed through the wire clamping portion of the loop-and-buckle ground wire lock. Namely, various modifications which can only realize the unlocking of the locking device and the hanging state of the temporary grounding wire, can not read the identity of the temporary grounding wire by using a computer key, and can only read the identity of the temporary grounding wire by using the computer key when the temporary grounding wire is in the dismounted state, so as to achieve the aim of preventing the temporary grounding wire from being dismounted are all within the protection scope of the invention.

A control method for preventing misoperation by utilizing the control system for preventing electrical misoperation comprises the following steps in the temporary grounding wire hooking stage:

1) an operator logs in the anti-error management software in the anti-error host, generates an operation order according to the operation task simulation and transmits the operation order to the computer key;

2) an operator carries a computer key and a corresponding temporary grounding wire (a ring buckle grounding wire lock) to go to the site;

3) an operator opens a loop ground wire lock of a group of temporary ground wires by using a computer key (the operator can unlock the loop ground wire lock after the computer key is successfully calibrated with a second ID code piece of the loop ground wire lock), and reads a first ID code piece of the loop ground wire lock in the temporary ground wire to be hung by using the computer key;

4) after confirming that the temporary grounding wire to be hung is matched with the temporary grounding pile, an operator opens a locking lockset on the temporary grounding pile at the hanging point by using a computer key;

5) an operator articulates the temporary grounding wire and restores the temporary grounding pile to be locked after the temporary grounding wire is articulated;

6) after all the operation tasks are completed, the operator returns to the master control room, returns the computer key and returns task information.

Step 3), the middle buckle ground wire lock is provided with a first ID code piece of an identity label and represents the identity of the temporary grounding wire; the first ID code chip is positioned in a first wire clamping part of the ground wire lock, and the first wire clamping part is used for fixing a hanging connection end of the temporary ground wire and can be read by a computer key only when the ring buckle ground wire lock is in an open state.

And an operator generates an operation ticket according to the operation task simulation in the anti-misoperation host. In the operation process, an operator opens the annular ground wire lock by using a computer key, reads a first ID code chip in the annular ground wire lock through the computer key, and binds and corresponds the temporary grounding wire and a hanging point (temporary grounding pile). Then, an operator opens the locking lockset of the grounding pile, articulates the temporary grounding wire, and then restores the locking of the temporary grounding pile to achieve the functions of preventing the temporary grounding from being hung in a leakage way, mistakenly hanging and the like. After all operations are finished, the operator returns to the master control room and returns the computer key operation information. At the moment, the error prevention host records the ID code of the annular ground wire lock and the information of the hanging point. Each hanging connection point corresponds to a temporary grounding wire.

A control method for preventing misoperation by utilizing the control system for preventing electrical misoperation comprises the following steps in the temporary grounding wire dismantling stage:

2) when an operator arrives at an operation place, taking down the hanging end of the temporary grounding wire;

3) an operator reads a first ID code chip in a first wire clamp part of a hanging end of the temporary grounding wire by using a computer key to confirm the identity of the temporary grounding wire;

4) after confirming that the hung temporary grounding wire is matched with the temporary grounding pile, an operator opens a locking lockset of the temporary grounding pile of the grounding point by using a computer key, removes the temporary grounding wire and restores the temporary grounding pile to be locked after the temporary grounding wire is removed;

5) an operator uses a computer key to restore and lock the ring buckle ground wire lock of the temporary ground wire; taking down the computer key;

6) after all the operations are finished, returning the temporary grounding wire by the operator;

7) the operator returns the computer key and returns the task information.

In the temporary grounding wire dismantling operation, the anti-misoperation host synchronously sends the ID codes of the annular grounding wire locks corresponding to the grounding points to the computer key when the operation is simulated by an operator. Before an operator removes the anti-misoperation lockset of the temporary grounding point, the hanging end of the temporary grounding line must be removed, the first ID code piece of the annular grounding line lock is read through a computer key (if the hanging end of the temporary grounding line is not removed, information in the first ID code piece cannot be read, so that the temporary grounding line can be ensured to be removed), namely the identity of the temporary grounding line is confirmed (whether the removal place is correct or not is confirmed, and the temporary grounding line is prevented from being removed by mistake). Then, an operator opens the ground point locking lockset, removes the temporary ground line, and locks the annular ground line lock (after removing the ground line hanging end 12, the ground end 13 is required to be removed to lock the annular ground line lock, so that the leakage prevention is realized). And when all the operation tasks are finished, returning the operation information to the computer key. The anti-misoperation host can check the operation information of the computer key according to the operation task, and can end the current operation task when the returned operation information corresponds to the hanging point and the temporary grounding wire.

According to the invention, through the structure of the buckle ground wire lock, when a worker removes the ground wire, the worker only needs to remove the hanging end of the temporary ground wire to read the identity of the temporary ground wire, so that the possibility of illegal operation and the possibility of missed removal are solved, namely, the correctness of the whole operation is forcibly ensured through the control method.

Claims

1. A temporary grounding wire unlocking and locking device is characterized by comprising a computer key, a temporary grounding wire and a ring buckle grounding wire lock; the computer key unlocks the ring buckle ground wire lock; the grounding end of the temporary grounding wire is fixedly connected with the ring buckle ground wire lock, and the hanging end of the temporary grounding wire can be connected to the ring buckle ground wire lock or separated from the lock body of the ring buckle ground wire lock; the ring buckle ground wire lock can enable the temporary ground wire to be in a state of being folded back and incapable of meeting hanging requirements in length or enable the temporary ground wire to be in a free extension state; the hanging end of the temporary grounding wire is provided with a readable identity mark representing the identity of the temporary grounding wire; when the buckle ground wire lock is locked, the identity mark arranged at the hanging end of the temporary grounding wire is hidden in the lock body of the buckle ground wire lock and cannot be read.

2. A temporary grounding wire unblocking device according to claim 1, wherein when the ground wire looping lock is locked, the ground wire looping lock enables the temporary grounding wire to be in a state of being folded back and incapable of meeting hanging requirements in length; when the buckle ground wire lock is unlocked, the temporary ground wire is in a free extension state.

3. The device as claimed in claim 1, wherein when the ground wire loop lock is unlocked, the identification mark disposed at the hanging end of the ground wire loop lock is read along with the hanging end being separated from the lock body of the ground wire loop lock.

4. The device for unlocking and locking a temporary grounding wire according to claim 1, wherein the buckle grounding wire lock comprises a first wire clamp part and a second wire clamp part which are correspondingly sleeved on a hanging end and a grounding end of the temporary grounding wire respectively, and the identity mark is arranged on the first wire clamp part; when the buckle ground wire lock is unlocked, the first wire clamp part can be separated from the lock body of the buckle ground wire lock.

5. The device for unlocking and locking a temporary grounding wire according to claim 1, wherein the buckle grounding wire lock comprises a first wire clamp part and a second wire clamp part which are correspondingly sleeved on a hanging end and a grounding end of the temporary grounding wire respectively, and the first wire clamp part is provided with the identity mark; when the buckle ground wire lock is unlocked, the first wire clamp part can be separated from the lock body of the buckle ground wire lock; when the ring buckle ground wire lock is locked, the temporary grounding wire is in a state of being folded back and the length of the temporary grounding wire cannot meet hanging requirements.

6. A temporary grounding wire unblocking apparatus according to claim 5, wherein when the ground wire looping lock is locked, the ground wire looping lock enables the temporary grounding wire to be connected end to end, and the identification mark provided in the first wire clamp portion is hidden in a lock body of the ground wire looping lock and cannot be read.

7. A temporary grounding wire unlocking device according to claim 5, wherein when the buckle ground wire lock is unlocked, the first wire clamp portion is separated from the lock body of the buckle ground wire lock, and the identification mark provided in the first wire clamp portion can be read.

8. A temporary grounding wire unlocking device according to any one of claims 4 to 7, wherein a first receiving groove for receiving part or all of the first wire clamp portion and a second receiving groove for receiving part or all of the second wire clamp portion are formed in the lock body.

9. A temporary grounding wire unblocking apparatus according to claim 8, wherein the second wire clamp portion includes a second fixed clamping block and a second movable clamping block; the second fixed clamping block and the second movable clamping block are detachably connected through a fastener penetrating from the second fixed clamping block to the second movable clamping block; the second wire clamp part is fixedly connected to the lock body, and the side wall, far away from the second movable clamping block, of the second fixed clamping block is tightly attached to the side wall of the lock body or accommodated in the second accommodating groove.

10. A temporary earth connection deoccluding device of claim 8, wherein the first clamp portion comprises a first fixed clamp block, a first movable clamp block, and a first chip holder; the first fixed clamping block and the first movable clamping block are detachably connected through a fastener penetrating from the first fixed clamping block to the first movable clamping block; the first chip seat is detachably connected with the first fixed clamping block through a fastener penetrating from the first chip seat to the first fixed clamping block; when the first clamping part is connected to the lock body, the side wall of the first code chip seat, which is far away from the first fixed clamping block, is clung to the side wall of the lock body or is accommodated in the first accommodating groove.

11. A temporary grounding wire unlocking and locking device as claimed in claim 10, wherein a locking circular hole is provided at an upper portion of the first chip seat, which is far away from the side wall of the first fixed clamping block, a locking ring table is formed at a circumferential inner wall of the locking circular hole, which is near to an outer end face of the locking circular hole, and a fan-shaped notch extending from the outer end face of the locking circular hole along the axial direction is further formed at the circumferential inner wall of the locking circular hole; the fan-shaped notch is communicated with a concave part forming the locking ring platform;

the lower part of the first chip seat, which is far away from the side wall of the first fixed clamping block, is provided with a chip groove, and an identity mark for representing the identity of the temporary grounding wire is arranged in the chip groove.

12. The device for unlocking a temporary grounding wire according to any one of claims 4 to 7, wherein an unlocking mechanism and an unlocking accommodating groove for accommodating the unlocking mechanism are arranged on the lock body, the unlocking mechanism unlocks the first clamp part, the unlocking mechanism comprises a lock knob sleeve, a lock knob and a locking mechanism, and the lock knob sleeve is connected with the lock knob; the locking mechanism can limit the lock knob, so that the lock knob is in a rotatable state or a rotation limiting state.

13. The device for unlocking and locking the temporary grounding wire according to claim 12, wherein the lock knob is integrally columnar, and a lock knob limiting pin is arranged at one end of the lock knob, which is close to the lock knob sleeve; the lock knob is also sequentially sleeved with a lock knob reset torsion spring, a reset torsion spring clamping plate and a self-locking sleeve reset spring; one end of the lock knob reset torsion spring is connected with the lock knob limiting pin, and the other end of the lock knob reset torsion spring is connected with the reset torsion spring clamping plate; one end of the self-locking sleeve return spring is fixed on the return torsion spring clamping plate.

14. A temporary grounding wire unblocking apparatus according to claim 13, wherein the blocking mechanism includes a self-locking sleeve and a blocking hook, the self-locking sleeve is disposed outside the self-locking sleeve return spring nested on the lock knob; the locking hook is arranged at one end, close to the first wire clamp part, of the lock knob, and can be matched with a locking ring platform on the first wire clamp part.

15. A temporary grounding wire unblocking apparatus according to claim 14, wherein a locking hook receiving groove is axially opened at a right end of the locking knob from an end surface, and a pin hole is opened at a position near the right end surface of the locking knob perpendicular to a side wall surface of the locking hook receiving groove; the locking hook is approximately hammer-shaped and comprises a hook handle and a hook body which are integrally formed, and locking hook reset spring accommodating grooves are formed in the bottom of the hook body and the lower part of the hook handle along the extension direction of the hook handle; and a mounting hole is formed in the direction perpendicular to the side wall surface of the locking hook return spring accommodating groove on the hook body of the locking hook, and the locking hook return spring are mounted on the lock knob through a connecting pin penetrating through the pin hole.

16. The device for unlocking a temporary grounding wire according to claim 15, wherein the self-locking sleeve is cylindrical as a whole, when the self-locking sleeve is nested on the lock knob, one end of the self-locking sleeve, which is close to the locking hook, is provided with a groove along an axial wall surface of the self-locking sleeve, and a notch is formed at the bottom of the groove and can be matched with the locking hook.

17. A temporary grounding wire unlocking device according to claim 16, wherein a travel switch fixing seat is installed in the lock body, and a travel switch is installed in the travel switch fixing seat.

18. The device as claimed in claim 17, wherein a boss is provided at a lower portion of the self-locking sleeve, and a travel switch control spring for controlling the on/off of the travel switch is installed therein.

19. A temporary grounding wire unlocking device according to claim 8, wherein a lock knob identification mark which is capable of being read and represents the lock knob or the lock body identity is arranged in the lock body.