CN112802696B

CN112802696B - Anti-misoperation locking box, anti-misoperation system and anti-misoperation method of electrical equipment

Info

Publication number: CN112802696B
Application number: CN202110328569.0A
Authority: CN
Inventors: 刘晋武; 黄梦; 周会成; 谭汝庆; 黄玉鹏
Original assignee: Changyuan Contron Power Security Technology Co Ltd
Current assignee: Changyuan Contron Power Security Technology Co Ltd
Priority date: 2020-03-27
Filing date: 2021-03-26
Publication date: 2023-02-28
Anticipated expiration: 2041-03-26
Also published as: CN111370240A; CN112802696A

Abstract

The invention is suitable for the field of error prevention of electrical equipment, and discloses an error prevention locking box, an error prevention system and an error prevention method of the electrical equipment, wherein the error prevention locking box comprises a lock seat and a box cover, the orientation of the side surface of the box cover is switched along with the change of the state of a change switch, a first connecting structure is arranged on the lock seat, and second connecting structures used for being connected with the first connecting structure are arranged on at least two side surfaces of the box cover; the detection part is arranged between the box cover and the lock seat and comprises induction pieces arranged on the box cover and detection pieces arranged on the lock seat, the induction pieces are respectively arranged on at least two sides of the box cover, and the number or/and the positions of the induction pieces on different sides of the box cover are different. The invention also provides an anti-error system and an anti-error method of the electrical equipment, the state of the change-over switch is judged through the result combination logic of at least two detection pieces, and the detection pieces can judge that the number of different states is larger than that of the detection pieces according to the combination logic, so that the structure is compact, and the cost is favorably reduced.

Description

Anti-misoperation locking box, anti-misoperation system and anti-misoperation method of electrical equipment

Technical Field

The invention belongs to the field of error prevention of electrical equipment (system), and particularly relates to an error prevention locking box, an error prevention system and an error prevention method of electrical equipment.

Background

The change-over switch is used for switching an electric loop in the electrical equipment, the common change-over switch can be switched between two or three states, and in order to improve the safety of the change-over switch and avoid safety accidents, an anti-misoperation locking box is generally installed on the change-over switch in practice so as to prevent unauthorized people from rotating the change-over switch.

The invention discloses an anti-misoperation locking box in the prior art, which has a single function and poor practicability, for example, an invention patent with the application number of 201621166839.3 and the publication date of 2017, 4 and 19 discloses an anti-misoperation locking box, wherein a cover body covers a selector switch to be locked, so that the selector switch is prevented from being operated under the unauthorized condition, but the cover body cannot be separated from a base component in the patent. This application is to some great or change over switches that have the handle of volume, and the lid can't cover change over switch, and its application range is less to when the operating personnel carries out the switching operation to change over switch, can't learn this change over switch's state in real time, if the operating personnel operates under the wrong condition of change over switch state, the incident takes place easily, and this has great potential safety hazard and inconvenience when making to overhaul or operating electrical equipment.

Among the prior art, also there are multistation switch shutting and state collection system, its shutting cover has a plurality of state feedback pieces, and have a plurality of state feedback pieces to set up respectively in the different positions of shutting cover, and set up with a plurality of shutting position one-to-ones, state collection portion responds to with the state feedback piece that corresponds, with the current station that discernment multistation switch was located, if the position of response is more, need correspond at the lock seat and set up a plurality of state collection portions, and is with high costs, its overall arrangement difficulty, the volume is small and exquisite compact inadequately, probably lead to the installation difficulty, be not convenient for user's use.

Disclosure of Invention

The present invention is directed to solve at least one of the above technical problems, and provides an anti-misoperation locking box, an anti-misoperation system and an anti-misoperation method for electrical equipment, wherein the state of a switch can be obtained through the matching shape of a lock seat and a box cover, so that the occurrence of electrical misoperation can be effectively prevented, and the personal safety of operators can be ensured.

The technical scheme of the invention is as follows: an anti-misoperation locking box of electrical equipment comprises a lock seat and a box cover, wherein the direction of the side face of the box cover is switched along with the state change of a change-over switch, a first connecting structure is arranged on the lock seat, and second connecting structures used for being connected with the first connecting structure are arranged on at least two side faces of the box cover; the lid with be provided with between the lock seat and be used for detecting the lid side with the detection part of the connection status of lock seat, the detection part including set up in the response piece of lid with set up in the detection piece of lock seat, the response piece set up respectively in two at least sides of lid, just the quantity or/and the position of the response piece of the different sides of lid are different.

Optionally, the box cover includes a first side surface, a second side surface, a third side surface and a fourth side surface, and the first side surface, the second side surface and the third side surface are all provided with the second connecting structure.

Optionally, the detecting element includes a first detecting element and a second detecting element, and the sensing element includes a first sensing element disposed on the first side surface and facing the first detecting element when the first side surface faces the lock seat, a second sensing element disposed on the second side surface and facing the second detecting element when the second side surface faces the lock seat, and a third sensing element and a fourth sensing element disposed on the third side surface and facing the first detecting element and the second detecting element respectively when the third side surface faces the lock seat.

Optionally, the fourth side is provided with an opening for a handle of a switch to protrude.

Optionally, the first connecting structure is a sliding groove, and the second connecting structure is a sliding rail; or, the first connecting structure is a sliding rail, and the second connecting structure is a sliding groove.

Optionally, two sliding grooves are provided, and two sliding rails are also provided; and/or, the port department of spout is provided with and is used for guiding the slide rail gets into the horn mouth of spout.

Optionally, the detection part is a reed pipe, and the induction part is magnetic steel.

Optionally, the box cover is provided with a limiting structure matched with the change-over switch, and the limiting structure comprises a groove or a convex strip which is arranged in the box cover and matched with the change-over switch; or, the limiting structure comprises an opening which is arranged on the side surface of the box cover and used for the handle of the change-over switch to extend out.

Optionally, the lock seat comprises a housing and a locking structure arranged in the housing and used for locking the box cover to the lock seat, the locking structure comprises a lock pin and a driving structure used for driving the lock pin to extend out of the surface of the housing, and the side of the box cover with the second connecting structure is provided with a locking hole used for the lock pin to extend into to lock the box cover.

Optionally, the lock base further comprises a key interface located at the top of the housing and a circuit module electrically connected with the detection member to obtain the orientation state of the box cover.

The invention also provides an anti-misoperation system of the electrical equipment, which comprises the electrical system equipment with a change-over switch, and further comprises:

the mis-locking prevention box of the electrical equipment is arranged on the change-over switch;

the computer key is used for unlocking the anti-misoperation locking box and acquiring the state of the change-over switch according to the state of the anti-misoperation locking box;

and the anti-misoperation host is used for sending the operation information of the change-over switch to the computer key according to the control logic and confirming the state of the electrical system equipment according to the state information of the anti-misoperation locking box fed back by the computer key.

Optionally, the anti-misoperation system further comprises a communication adapter for the computer key to send and receive information.

The invention also provides an anti-error method of the electrical equipment, and the anti-error system of the electrical equipment comprises the following steps:

selecting a switch needing to be switched into a state in the electrical system equipment, performing analog logic judgment on the switched state of the electrical system equipment by the anti-misoperation host, and if the analog logic judgment meets a preset logic rule, sending corresponding information to a computer key;

connecting the computer key to an anti-misoperation locking box corresponding to the electrical system equipment, identifying the current state of the anti-misoperation locking box to acquire the state corresponding to the change-over switch, and prompting a user to perform unlocking operation if the state of the change-over switch is consistent with the information in the computer key;

the box cover of the anti-misoperation locking box is taken down, the change-over switch of the electrical system equipment is switched, and the side face of the box cover is selectively switched to face and the box cover is locked on the lock seat according to the state of the change-over switch;

the computer key identifies the switched state of the selector switch through the state of the anti-misoperation locking box, and if the switched state of the selector switch is consistent with the information in the computer key, the information is transmitted back to the anti-misoperation host;

and the anti-misoperation host switches the state of the corresponding change-over switch in the electrical system equipment.

Optionally, by rotating the box cover, the sensing pieces in different numbers or/and different positions face the sensing pieces on the lock seat, at least two of the detection pieces in the lock seat simultaneously detect whether there is a corresponding sensing piece, and the state of the change-over switch is judged through the result combination logic of the at least two detection pieces.

Optionally, the first detecting element of the lock base senses the sensing element, but the second detecting element of the lock base does not sense the sensing element, and the detecting element determines that the switch is in the first state according to the combinational logic;

the first detection part of the lock seat does not sense a sensing part, but the second detection part of the lock seat senses a sensing part, and the detection part judges that the change-over switch is in a second state according to the combinational logic;

the first detection piece of the lock seat senses the sensing piece, the second detection piece of the lock seat also senses the sensing piece, and the detection part judges that the change-over switch is in the third state according to the combinational logic;

the first detection piece of the lock seat does not sense an induction piece, the second detection piece of the lock seat does not sense an induction piece, and the detection part judges that the change-over switch is in the fourth state according to the combinational logic.

Optionally, the detecting component may determine that the number of different states is greater than the number of detecting elements according to a combinational logic.

The invention provides an anti-misoperation locking box, an anti-misoperation system and an anti-misoperation method of electrical equipment, wherein the anti-misoperation locking box acquires the state of a change-over switch through the connection relation between the side surface of a box cover and a lock seat detected by a detection part, the anti-misoperation system acquires information in the anti-misoperation locking box by using a computer key and compares the information with the information provided by an anti-misoperation host, so as to judge whether the current state of the change-over switch is wrong or not, thereby effectively preventing the occurrence of electrical misoperation, and having strong safety.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an exploded view of an anti-mislatching box of an electrical device according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a box cover of an anti-mislocking box of electrical equipment according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of another view angle of a lid of the mis-locking prevention box of the electrical device according to the embodiment of the present invention;

fig. 4 is a schematic diagram of an error locking prevention box of an electrical device in a first state according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an anti-mislatching box of an electrical device in a third state according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an anti-mislatching box of an electrical device in a second state according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of an alternative embodiment of an anti-mislatching box of an electrical device according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a change-over switch of an alternative embodiment of the mis-locking prevention box of the electrical device according to the embodiment of the present invention;

FIG. 9 is a schematic diagram of an anti-error system of an electrical device according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a 220KV substation electrical system.

In the figure:

1. a lock base; 11. a housing; 12. a slide rail; 13. a lock pin; 14. a detection member; 141. a first detecting member; 142. a second detecting member; 15. a key interface;

2. a box cover; 21. a first side surface; 211. a first sensing member; 22. a second side surface; 221. a second sensing member; 23. a third side; 231. a third sensing member; 232. a fourth sensing member; 24. a fourth side; 25. a locking hole; 26. an opening; 27. a chute; 28. a convex strip;

3. a switch; 31. a handle; 32. a groove;

41.1ZK switch; 42.2ZK switch; 43.3ZK switch; 44.4ZK switch; 45.5ZK switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed or connected, or indirectly disposed or connected through intervening elements or intervening structures.

In addition, in the embodiments of the present invention, if there are terms of orientation or positional relationship indicated by "longitudinal direction", "lateral direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., it is only for convenience of description and simplification of description based on the orientation or positional relationship shown in the drawings or the conventional placing state or using state, and it does not indicate or imply that the structures, features, devices or elements referred to must have a specific orientation or positional relationship or must not be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The various features and embodiments described in the embodiments may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and in order to avoid unnecessary repetition, various possible combinations of features/embodiments in the present invention will not be described in detail.

As shown in fig. 1, 2 and 4, an anti-misoperation locking box for electrical equipment according to an embodiment of the present invention includes a lock holder 1 and a box cover 2 that switches side orientations along with a state change of a switch 3, that is, different orientations of the box cover 2 correspond to different states of the switch 3, the switch 3 is switched to different states (for example, rotating and toggling the switch 3), and the side orientations of the box cover 2 are different, so that the state of the switch 3 can be determined by determining the different orientations of the side surfaces of the box cover 2, for convenience of description, in this embodiment, the side surface of the box cover 2 facing the lock holder 1 is used as an orientation reference, the lock holder 1 is provided with a first connection structure, at least two side surfaces of the box cover 2 are provided with second connection structures for connecting with the first connection structures, the box cover 2 is connected to the lock holder 1 by matching of the first connection structures and the second connection structures, and the box cover 2 can switch over the second connection structures of different side surfaces to be connected with the first connection structures according to different states of the switch 3, that each side surface of the second connection structure faces the lock holder 1, and one state of the box cover 3 corresponds to one state of the switch 3; a detection part is arranged between the box cover 2 and the lock base 1, the detection part comprises induction pieces (211, 221, 231 and 232) arranged on the box cover 2 and a detection piece 14 arranged on the lock base 1, the induction pieces are respectively arranged on at least two side faces of the box cover 2, the number or/and positions of the induction pieces on different side faces of the box cover 2 are different, different side faces correspond to different states of the change-over switch 3, when the box cover 2 is connected with the lock base 1, the detection piece 14 on the lock base 1 acquires the matching state of the box cover 2 and the lock base 1 (namely which side face of the box cover 2 is connected with the lock base 1, the side face is the side face facing the lock base 1) by detecting the induction piece on the currently connected side face, so that the current state of the change-over switch 3 is acquired; when the switch 3 switches the state, the box cover 2 needs to correspondingly switch the connection side surface of the box cover and the lock base 1, the connection side surface faces the side surface of the lock base 1, so as to ensure that the side surface of the box cover 2 is in one-to-one correspondence with the state of the switch 3. With the design, a maintenance worker can judge whether the current state of the change-over switch 3 is correct or not through the information provided by the detection piece 14, so that the occurrence of electrical misoperation is avoided, and the safety of electrical overhaul is effectively improved. Simultaneously, lid 2 and lock seat 1 can be detachable design, and in practical application, change over switch 3 is various, and the shape size also is different, when the installation was prevented mistake locking box, can select different lid 2 according to different change over switch 3 to adapt to actual demand.

In a specific application, the box cover 2 is generally a cover body having a top surface and a plurality of side surfaces, and the box cover 2 has a cavity therein for accommodating the switch 3. The shape of lid 2 or the quantity of side can be decided according to the state quantity that change over switch 3 has, and the quantity of general lid 2 side is no less than change over switch 3's state quantity, if change over switch 3 has three kinds of states, then the side quantity of lid 2 should be no less than three to on the side that every state of change over switch 3 corresponds, all be provided with second connection structure and response piece, in order to satisfy actual demand. In this embodiment, lid 2 can be the cuboid, and lid 2 has four sides promptly, and change over switch 3 can have three kinds of different states, and is corresponding, all is provided with second connection structure and response piece in the three side of lid 2.

As shown in fig. 2 and fig. 3 in particular, the box cover 2 includes a first side surface 21, a second side surface 22, a third side surface 23, and a fourth side surface 24, wherein the first side surface 21, the second side surface 22, and the third side surface 23 can be provided with a second connecting structure, and in this embodiment, the first side surface 21, the second side surface 22, and the third side surface 23 can be provided with corresponding sensing elements.

In a specific application, the second connecting structure may be determined according to the number of states of the switch 3, for example, if the switch 3 has two states, the second connecting structure may be disposed on two sides, and similarly, if the switch 3 has three states, the second connecting structure may be disposed on three sides.

Specifically, as shown in fig. 1 to 3, the detecting element 14 includes a first detecting element 141 and a second detecting element 142, and the sensing elements include a first sensing element 211 disposed on the first side 21 and facing the first detecting element 141 when the first side 21 faces the lock base 1, a second sensing element 221 disposed on the second side 22 and facing the second detecting element 142 when the second side 22 faces the lock base 1, and a third sensing element 231 and a fourth sensing element 232 disposed on the third side 23 and facing the first detecting element 141 and the second detecting element 142 respectively when the third side 23 faces the lock base 1. When the second connection structure of the first side surface 21 is connected to the first connection structure of the lock base 1 (i.e. the first side surface faces the lock base 1), the first sensing element 211 is opposite to the first detecting element 141 and can trigger the first detecting element 141, the first detecting element 141 is turned on, and the second detecting element 142 is turned off because it is not triggered; when the second side surface 22 is connected to the lock seat 1, the second sensing member 221 is opposite to the second detecting member 142 and can trigger the second detecting member 142, the second detecting member 142 is turned on, and the first detecting member 141 is turned off because it is not triggered; when the third side 23 is connected to the lock seat 1, the third sensing element 231 is opposite to the first detecting element 141 and can trigger the first detecting element 141, and the fourth sensing element 232 is opposite to the second detecting element 142 and can trigger the second detecting element 142, the first detecting element 141 is turned on, and the second detecting element 142 is also turned on. In this embodiment, the relationship between the sensing element and the detecting element 14 in various states is shown in table 1:

table 1: relation table of various states of detecting member 14

First detecting member 141	Second detecting member 142	Read state
			Is connected to	Disconnect	First state (first side 21 connected, see fig. 4)
Disconnect	Is connected to	Second state (second side 22 connected, see FIG. 6)
			Is connected to	Is connected to	Third state (third side 23 connected, see FIG. 5)
Break off	Disconnect	Fourth state (not connected with box cover 2)

In table 1, the on state indicates that the detection element 14 detects the sensing element, the off state indicates that the detection element 14 does not detect the sensing element, the first state, the second state, and the third state can be represented as three different states of the change-over switch 3, and the detection element 14 reads the different states by detecting the sensing element to obtain the current state of the change-over switch 3, so that a maintenance worker can judge whether the change-over switch 3 is in the correct state, and the safety during maintenance can be effectively improved. Meanwhile, the fourth state can be defined as a reminding state, namely the fourth state is a state without installing the box cover 2, and a warning lamp capable of emitting warning light or a loudspeaker capable of emitting reminding sound can be arranged on the lock seat 1 or the box cover 2, when the detection piece 14 is in the fourth state within a period of time, the warning lamp or the loudspeaker can emit warning light or reminding sound and other prompting information to remind maintenance personnel to install the box cover 2, and the situation that the maintenance personnel forget to install the box cover 2 after maintenance is avoided, so that the safety of the electrical equipment is further improved.

Specifically, the detection part can judge that the number of different states is larger than that of the detection parts according to the combinational logic, so that the product structure is small and exquisite, and the cost is reduced. For example, in this embodiment, detection of four states can be achieved by two detection pieces. According to the scheme of the embodiment, when three detection pieces are arranged, detection of up to 8 states can be realized. When four detection pieces are provided, detection of up to 16 states can be realized. When being provided with n detection pieces promptly, can realize that the quantity that the state detected reaches 2 n powers as much, compare with one-to-one among the prior art detection piece, response piece, reduced the required space of device overall arrangement, product compact structure is convenient for install and use. In the concrete application, the quantity of the response piece of every face of lid 2 all is not more than the quantity that detects the piece, and wherein the at least one face of lid 2 can be provided with the response piece that equals with the detection piece quantity, and the at least one face of lid 2 can need not to be provided with the response piece.

In a specific application, as another optional implementation of this embodiment, three detection pieces 14 may be provided, three sensing pieces are correspondingly provided, and each detection piece 14 can be triggered and sensed by only one sensing piece, that is, three detection pieces 14 correspond to three different states of the switch 3, and such a design is also the same as the effect achieved by this embodiment.

In a specific application, if the switch 3 has only two states, only one detecting element 14 may be provided, and only one side surface is provided with the sensing element, and at this time, the detecting element 14 has only two states to correspond to the two states of the switch 3. Of course, the same scheme as the present embodiment may be adopted, and the third sensing element 231 and the fourth sensing element 232 of the third side surface 23 may be removed, only the sensing elements of the first side surface 21 and the second side surface 22 are remained, and the first side surface 21 and the second side surface 22 are corresponding to two states of the switch 3.

The detecting member 14 may be a hall element. Specifically, as shown in fig. 2, the detecting element 14 is a reed pipe, and the sensing element is magnetic steel. In this embodiment, can set up the response hole site that is used for installing the response piece in the side of lid 2, install the magnet steel in the response hole site to can install or dismantle the magnet steel according to change over switch 3's state quantity, with the demand that satisfies different change over switch 3. Of course, in practical applications, the detecting element 14 may be other detecting devices, and the sensing element may also be other sensing devices.

In particular, as shown in fig. 3, the fourth side 24 may be provided with an opening 26 for protruding a handle 31 of the diverter switch 3. With such a design, when the anti-misoperation locking box is applied to the switch 3 with the handle 31 (see fig. 4), the handle 31 can extend out of the opening 26 and extend out of the box cover 2, so that the volume of the box cover 2 can be reduced as much as possible under the condition that the normal use of the anti-misoperation locking box is not influenced, and the occupied space of the box cover 2 is reduced.

Specifically, in other embodiments, the box cover 2 may be provided with a limiting structure engaged with the switch 3, and the limiting structure includes a groove or a protruding strip 28 disposed in the box cover 2 and engaged with the switch 3; alternatively, the limiting structure comprises an opening 26 which is arranged on the side surface of the box cover 2 and is used for extending the handle 31 of the change-over switch 3.

In a specific application, as an alternative to the embodiment, as shown in fig. 8, when the switch 3 is a linear groove knob having a groove 32 on a panel, as shown in fig. 7, the limiting structure may be a protruding strip 28 disposed in the box cover 2 and matching with the groove 32 of the switch 3, and the protruding strip 28 may be disposed inside the box cover 2. When the box cover 2 is installed, the convex strip 28 is aligned with the groove 32 on the panel of the change-over switch 3 and is embedded into the groove 32; when the switch 3 needs to switch the state, the box cover 2 needs to be taken down and the state of the switch 3 needs to be switched, and then the box cover 2 can be installed on the switch 3 by adjusting the direction of the box cover 2 and aligning the convex strips 28 with the grooves 32 on the panel of the switch 3, and the box cover 2 is connected with the lock base 1, so that the condition that the corresponding relation between the state of the switch 3 and each side surface of the box cover 2 is wrong does not occur. Of course, the size of the protrusion 28 can be determined according to the groove 32 on the switch 3, for example, when the groove 32 on the switch 3 is a cross-shaped groove, the protrusion 28 can be a cross-shaped protrusion matching with the cross-shaped groove.

In a specific application, as another alternative of this embodiment, when the switch 3 is a linear protruding bar knob having a protruding bar on a panel, the limiting structure can be a groove disposed in the box cover 2 and engaged with the protruding bar of the switch 3, or a strip groove surrounded by two strip-shaped baffles. Thus, after the state of the switch 3 is switched and the box cover 2 is installed, the box cover 2 can be installed on the switch 3 and the box cover 2 is connected with the lock base 1 only by adjusting the direction of the box cover 2, aligning the groove with the convex strip on the switch 3 and embedding the convex strip into the groove, so that the condition that the corresponding relation between the state of the switch 3 and each side surface of the box cover 2 is wrong can not occur. Of course, if the switch 3 is a cross-shaped knob, the groove can also be a cross-shaped groove.

Specifically, as shown in fig. 1, the first connecting structure may be a sliding slot 27, the second connecting structure may be a sliding track 12, the sliding slot 27 is engaged with the sliding track 12, and after the sliding track 12 enters the sliding slot 27, the box cover 2 is limited to move only in the axial direction (i.e. the length direction of the sliding slot 27 and the sliding track 12). The lock base 1 and the box cover 2 are matched with the sliding groove 27 and the sliding rail 12 to realize sliding connection between the lock base and the box cover, so that the box cover 2 is convenient to detach and mount. Of course, in practical applications, the first connecting structure may be the sliding rail 12, and the second connecting structure may be the sliding groove 27.

In a specific application, the first connecting structure and the second connecting structure may also be other detachable connections, such as a snap connection, a screw clamping connection, and the like.

Specifically, as shown in fig. 1, two sliding grooves 27 may be provided, two sliding rails 12 may also be provided, and the two sliding grooves 27 and the sliding rails 12 are connected in a matching manner, so that the sliding connection between the lock holder 1 and the box cover 2 is more reliable and smooth, and meanwhile, the loosening phenomenon after the lock holder 1 and the box cover 2 are connected can also be avoided. In a specific application, one or more sliding rails 12 and sliding grooves 27 may be provided.

In a specific application, a port of the sliding groove 27 may be provided with a flared opening for guiding the sliding rail 12 to enter the sliding groove 27, that is, the port of the sliding groove 27 has a guiding inclined surface or a guiding arc surface, so that the port of the sliding groove 27 is flared, so as to facilitate inserting the sliding rail 12 into the sliding groove 27. In specific application, the sliding rail 12 may be a strip rail protruding from the surface of the lock base 1 and having a T-shaped or dovetail-shaped cross section, and correspondingly, the sliding groove 27 may be a strip groove having a T-shaped or dovetail-shaped cross section, when the sliding rail 12 enters the sliding groove 27 (after the box cover 2 is connected to the lock base 1), the lock base 1 limits the freedom of movement of the box cover 2, and at this time, the box cover 2 can only move along the length direction of the sliding rail 12.

Specifically, as shown in fig. 1, the lock holder 1 includes a housing 11 and a locking structure disposed in the housing 11 and used for locking the box cover 2 to the lock holder 1, the locking structure includes a locking pin 13 and a driving structure (not shown in the figure) for driving the locking pin 13 to protrude out of the surface of the housing 11, and a side of the box cover 2 having the second connecting structure is provided with a locking hole 25 for the locking pin 13 to protrude into to lock the box cover 2. When the box cover 2 is connected with the lock base 1, the matching of the sliding rail 12 and the sliding groove 27 can enable the box cover 2 to only slide along the length direction of the sliding rail 12, the driving structure can drive the lock pin 13 to extend out of the surface of the shell 11 and into the locking hole 25 on the side surface of the box cover 2 under the control of a key, at this time, the movement of the box cover 2 is completely limited, and the box cover 2 is locked on the lock base 1. When the lock pin 13 retracts into the shell 11, the end surface of the lock pin 13 can be flush with the surface of the shell 11, on one hand, the lock pin 13 can be prevented from interfering the installation and the disassembly of the box cover 2, on the other hand, impurities such as dust can be prevented from falling into the shell 11, and therefore the service life of the anti-misoperation locking box is prolonged.

In a specific application, each side of the box cover 2 (i.e. the side provided with the second connecting structure) that can be connected with the lock base 1 can be provided with a locking hole 25, and the position of each locking hole 25 can be the same, i.e. when each side faces the lock base 1, the locking hole 25 of the side is aligned with the front end of the lock pin 13.

Specifically, as shown in fig. 4, the lock base 1 further includes a key interface 15 located at the top of the housing 11 and a circuit module (not shown in the figure) electrically connected to the detecting element 14 to obtain the orientation state of the box cover 2, the key used in the mis-locking prevention box may be a computer key (electronic key), and when the key is inserted into the key interface 15, the key can read the connection condition between the box cover 2 and the lock base 1 (i.e. the state of the switch 3 in the box cover 2), and drive the driving structure, so as to unlock the box cover 2 and quickly and accurately determine whether the switch 3 is in the correct state, thereby improving the maintenance efficiency and ensuring the personal safety of the maintenance personnel. When the change-over switch 3 needs to be operated, the box cover 2 can be unlocked by a key (meanwhile, the current connection condition information of the box cover 2 and the lock base 1 is read to judge the current state information of the change-over switch 3 before operation), and the box cover 2 is taken down from the lock base 1, so that the change-over switch 3 is operated; after the operation is finished, the box cover 2 can be locked, and the current state information of the operated selector switch 3 can be judged by reading the connection condition information of the box cover 2 and the lock base 1.

In the concrete application, the product shutting spring bolt can be the plane, and lid 2 (shutting cover) need the key to rotate the inside slewing mechanism of lock body, and in retracting the lock bolt lock body, lid 2 (shutting cover) could just be adorned in the lock body, and the final state of change over switch 3 (handle) can be through the key feedback like this.

As shown in fig. 9, an embodiment of the present invention further provides an anti-error system for electrical equipment, including an electrical system device having a switch 3, further including:

in the error locking prevention box of the electrical equipment, the error locking prevention box is arranged on the change-over switch 3;

the computer key is used for unlocking the anti-misoperation locking box and acquiring the state of the change-over switch 3 through the state of the anti-misoperation locking box;

the anti-misoperation host is used for sending operation information of the change-over switch 3 to the computer key according to the control logic and confirming the state of the electrical system equipment according to the state information of the anti-misoperation locking box fed back by the computer key.

It can be understood that, in the embodiment of the present invention, the electrical system device of the substation is taken as an example, and the present invention is not particularly limited, and in a specific application, the error prevention system of the present invention may also be applied to error prevention of other electrical devices (systems).

Specifically, the anti-misoperation system further comprises a communication adapter for receiving and sending information by the computer key, and information transmission between the anti-misoperation host and the computer key is realized through the communication adapter.

The embodiment of the invention also provides an anti-error method of the electrical equipment, and the anti-error system of the electrical equipment comprises the following steps:

selecting a change-over switch 3 which needs to be switched over in the electrical system equipment, performing analog logic judgment on the switching over state of the electrical system equipment by the anti-misoperation host, and if the analog logic judgment meets a preset logic rule, sending corresponding information to a computer key;

connecting a computer key to an anti-misoperation locking box corresponding to the electrical system equipment, identifying the state of the current anti-misoperation locking box to acquire the state of the corresponding change-over switch 3, and prompting a user to unlock if the state of the change-over switch 3 is consistent with the information in the computer key;

taking down the box cover 2 of the anti-misoperation locking box, switching a change-over switch 3 of the electrical system equipment, and selecting to switch the side face orientation of the box cover 2 according to the state of the change-over switch 3 and locking the box cover 2 on the lock seat 1;

the computer key identifies the state of the change-over switch 3 after switching through the state of the anti-misoperation locking box, if the state is consistent with the information in the computer key, the current operation step of the computer key is ended, otherwise, the computer key stays in the step all the time;

the information of the computer key is transmitted back to the anti-misoperation host through the communication adapter, and the anti-misoperation host switches the state of the corresponding change-over switch 3 in the electrical system equipment.

Specifically, by rotating the box cover 2, the sensing pieces in different numbers or/and different positions face the sensing pieces on the lock holder 1, at least two of the detection pieces in the lock holder 1 simultaneously detect whether the corresponding sensing pieces exist, and the state of the change-over switch is judged through the result combination logic of the at least two detection pieces. Compared with the one-to-one correspondence of the detection part and the induction part in the prior art, the space required by the layout of the device is reduced, the product structure is compact, and the installation and the use are convenient. In the concrete application, the quantity of the response piece of every face of lid 2 all is not more than the quantity that detects the piece, and wherein the at least one face of lid 2 can be provided with the response piece that equals with the detection piece quantity, and the at least one face of lid 2 can need not to be provided with the response piece.

Specifically, the first detecting element 141 of the lock seat 1 senses a sensing element, but the second detecting element 142 of the lock seat 1 does not sense a sensing element, and the detecting element determines that the switch 3 is in the first state according to the combinational logic;

the first detecting element 141 of the lock base 1 does not sense a sensing element, but the second detecting element 142 of the lock base 1 senses a sensing element, and the detecting element determines that the change-over switch 3 is in the second state according to the combinational logic;

the first detecting element 141 of the lock base 1 senses the sensing element, and the second detecting element 142 of the lock base 1 also senses the sensing element, and the detecting element determines that the switch 3 is in the third state according to the combinational logic;

the first detecting element 141 of the lock base 1 does not sense a sensing element, and the second detecting element 142 of the lock base 1 does not sense a sensing element, and the detecting element determines that the switch 3 is in the fourth state according to the combinational logic.

Optionally, the detecting component can judge that the number of different states is larger than the number of the detecting components according to the combinational logic, so that the product structure is small and compact, and the cost is reduced. For example, in this embodiment, detection of four states can be achieved by two detection pieces. According to the scheme of the embodiment, when three detection pieces are arranged, detection of up to 8 states can be realized. When four detection pieces are provided, detection of up to 16 states can be realized. I.e. provided with n detection members, a number of state detections of up to the power n of 2 can be achieved.

In this embodiment, reed switches are placed at two positions inside the lock base 1 as detection parts, and then magnets with different numbers or positions are placed on three surfaces of the box cover 2 (locking cover) as sensing parts, specifically, 1 surface a, 1 surface B, 2 surfaces C, and three surfaces ABC are interchangeable. When the surface A of the box cover 2 (locking cover) and the two reed switches in the lock seat 1 are induced, only the position with a magnet in the two reed switches works to generate induction (logic is represented as 0), the other reed switch does not generate induction (logic is represented as 1), the surface B reaction principle is opposite to the surface A, the reed switch which does not react in the surface A is used, the reaction (logic is represented as 0) is carried out at the moment, the reed switch which reacts in the surface A does not react at the moment (logic is represented as 1), the surface C is used, the two reed switches both react with the magnet (logic is represented as 0 and 0), and the two reed switches are (0 and 1), (1 and 0); 0. 0, the three surfaces are integral and inseparable. And there is a fourth case where both reed switches are inoperative without encountering a magnet, i.e., the logical representations are 1 and 1.

In this embodiment, the electrical system takes a direct current system of a substation as an example, and the error prevention method for electrical equipment provided in the embodiment of the present invention is described, but this is not a limitation to the present invention, and in a specific application, the error prevention system and the error prevention method may also be applied to other electrical (or power) systems.

Referring to fig. 10, fig. 10 is a schematic diagram of an electrical system of a 220KV substation, in which the change-over switches (1 ZK switch 41, 2ZK switch 42, 3ZK switch 43, 4ZK switch 44, and 5ZK switch 45) are all installed with the above-mentioned false-locking prevention box, and a logic rule corresponding to the electrical device (system) needs to be compiled according to an operation rule of the device in fig. 10. Taking the example that the 1ZK switch 41 needs to be switched from the state of 'throw to the I-section bus' to the state of 'quit', firstly, performing simulation operation on the anti-misoperation host, switching the position of the 1ZK switch 41 from 'throw to the I-section bus' to 'quit', in the switching process, logically judging the anti-misoperation host according to a preset logic rule to judge whether the anti-misoperation host meets the conditions that 'the 2ZK switch 42 is throw to the II-section bus and the 5ZK switch 45 is in the throw-in state' or 'the 2ZK switch 42 is throw to the II-section battery and the 5ZK45 switch is in the throw-in state', if the pre-set logic rule is met, sending corresponding operation steps and related information to a computer key, and if the pre-set rule is not met, not allowing operation; connecting the corresponding error-proof locking box of the 1ZK switch 41 by using a computer key and identifying the state of the error-proof locking box, if the current state is 'throw to the I section bus', prompting a user to carry out unlocking operation, otherwise, not allowing to carry out unlocking; taking down the anti-misoperation locking box and switching the switching 1ZK switch 41 to an exit state, then unlocking again by using a computer key, switching the side orientation of the box cover 2 and locking the box cover to the lock seat 1, releasing an unlocking mechanism of the computer key, judging the state of the current anti-misoperation locking box by the computer key, and if the state is the exit state, finishing the steps in the computer key; otherwise, prompting the operator of error switching operation; the information is transmitted back to the anti-misoperation host through the communication adapter, and the anti-misoperation host switches the state of the corresponding 1ZK switch 41 stored in the anti-misoperation host according to the information, so that the switching operation of the 1ZK switch 41 is completed. In the whole switching operation process, whether before or after switching, the state of the change-over switch 3 can be obtained by identifying the error-proof locking box, so that the safety of operators and the accuracy of operation can be ensured.

The invention provides an anti-misoperation locking box, an anti-misoperation system and an anti-misoperation method of electrical equipment, wherein the anti-misoperation locking box acquires the current state of a selector switch 3 through a box cover 2 which can be switched to face the side face along with the state of the selector switch 3, the anti-misoperation system acquires the state of the selector switch 3 in the anti-misoperation locking box through a computer key, compares the current state of the selector switch 3 with information provided by an anti-misoperation host, and allows unlocking operation if the information is consistent, so that the occurrence of electrical misoperation can be effectively prevented, and the safety of operators is ensured; and after the switching operation is completed, the state of the switched change-over switch 3 is compared with the switched information provided by the anti-misoperation host by the computer key, if the information is consistent, the current operation step of the computer key is ended, the switched information is synchronized to the anti-misoperation host, otherwise, the computer key stays in the step all the time. The information in the anti-misoperation host is always consistent with the state of the change-over switch 3, and meanwhile, the accuracy of the switching operation of the operating personnel is also ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The anti-misoperation locking box of the electrical equipment is characterized by comprising a lock seat and a box cover, wherein the box cover switches the orientation of the side face along with the state change of a switch, a first connecting structure is arranged on the lock seat, and second connecting structures used for being connected with the first connecting structure are arranged on at least two side faces of the box cover; a detection part for detecting the connection state of the side face of the box cover and the lock seat is arranged between the box cover and the lock seat, the detection part comprises induction pieces arranged on the box cover and detection pieces arranged on the lock seat, the induction pieces are respectively arranged on at least two side faces of the box cover, and the number or/and the positions of the induction pieces on different side faces of the box cover are different;

the box cover comprises a first side face, a second side face, a third side face and a fourth side face, the detection piece comprises a first detection piece and a second detection piece, the induction piece comprises a first induction piece which is arranged on the first side face and is opposite to the first detection piece when the first side face faces the lock seat, a second induction piece which is arranged on the second side face and is opposite to the second detection piece when the second side face faces the lock seat, and a third induction piece and a fourth induction piece which are arranged on the third side face and are respectively opposite to the first detection piece and the second detection piece when the third side face faces the lock seat;

the box cover is provided with a limiting structure matched with the change-over switch, the lock seat comprises a shell and a locking structure which is arranged in the shell and used for locking the box cover on the lock seat, the locking structure comprises a lock pin and a driving structure used for driving the lock pin to stretch out of the surface of the shell, and a locking hole used for enabling the lock pin to stretch into the box cover to lock the box cover is formed in the side face, provided with the second connecting structure, of the box cover.

2. The mis-locking prevention box for electrical equipment as recited in claim 1, wherein the first side, the second side, and the third side are each provided with the second connecting structure.

3. An erroneous locking prevention box for electric equipment as claimed in claim 1, wherein said fourth side is provided with an opening for a handle of the change-over switch to protrude.

4. The mis-locking prevention box for electrical equipment as recited in claim 1, wherein said first connecting structure is a slide groove and said second connecting structure is a slide rail; or, the first connecting structure is a sliding rail, and the second connecting structure is a sliding groove.

5. The mis-locking prevention box for electrical equipment as claimed in claim 4, wherein the sliding groove is provided with two, and the sliding rail is also provided with two; and/or, the port department of spout is provided with and is used for guiding the slide rail gets into the horn mouth of spout.

6. The mis-locking prevention box of electric equipment as claimed in claim 1, wherein the detecting member is a reed pipe and the sensing member is magnetic steel.

7. The mis-locking prevention box of electrical equipment as claimed in claim 1, wherein the limiting structure comprises a groove or a rib disposed in the box cover and engaged with the switch; or, the limiting structure comprises an opening which is arranged on the side surface of the box cover and used for the handle of the change-over switch to extend out.

8. The mis-locking prevention box for electrical equipment as claimed in claim 7, wherein the key holder further comprises a key interface at the top of the housing and a circuit module electrically connected to the detecting member to obtain the orientation state of the box cover.

9. An anti-misoperation system for electrical equipment, comprising electrical system equipment with a change-over switch, characterized by further comprising:

an anti-mislatching box for electrical equipment as claimed in any one of claims 1 to 8 mounted to said diverter switch;

10. The error prevention system for electrical equipment of claim 9, further comprising a communication adapter for the computer key to send and receive information.

11. An error preventing method of an electrical apparatus, characterized in that an error preventing system of an electrical apparatus according to claim 9 or 10 is adopted, comprising the steps of:

connecting the computer key to an anti-misoperation locking box corresponding to the electrical system equipment, identifying the current state of the anti-misoperation locking box to obtain the state corresponding to the change-over switch, and prompting a user to perform unlocking operation if the state of the change-over switch is consistent with the information in the computer key;

the box cover of the anti-misoperation locking box is taken down, the change-over switch of the electrical system equipment is switched, the side face orientation of the box cover is selectively switched according to the state of the change-over switch, and the box cover is locked on the lock seat;

the computer key identifies the state of the change-over switch after switching through the state of the anti-misoperation locking box, and if the state of the change-over switch is consistent with the information in the computer key, the information is transmitted back to the anti-misoperation host;

12. An error prevention method for electrical equipment according to claim 11, wherein by rotating the box cover, the sensing members with different numbers and/or different positions are oriented to the sensing members on the lock base, at least two of the detecting members in the lock base detect whether there is a corresponding sensing member at the same time, and the state of the switch is determined by the result combinational logic of at least two of the detecting members.

13. An anti-malfunction method for electrical equipment according to claim 11,

the first detection piece of the lock seat senses the sensing piece, but the second detection piece of the lock seat does not sense the sensing piece, and the detection part judges that the change-over switch is in a first state according to the first combination logic;

the first detection piece of the lock seat does not sense an induction piece, but the second detection piece of the lock seat senses an induction piece, and the detection part judges that the change-over switch is in a second state according to a second combination logic;

the first detection piece of the lock seat senses the sensing piece, the second detection piece of the lock seat also senses the sensing piece, and the detection part judges that the change-over switch is in a third state according to a third combination logic;

the first detection piece of the lock seat does not sense an induction piece, the second detection piece of the lock seat does not sense an induction piece, and the detection part judges that the change-over switch is in the fourth state according to the fourth combinational logic.

14. The error preventing method of an electric device according to claim 11, wherein the detecting part can judge that the number of different states is larger than the number of the detecting parts according to a combinational logic.