CN104681328B - A kind of electric operation case - Google Patents
A kind of electric operation case Download PDFInfo
- Publication number
- CN104681328B CN104681328B CN201510061781.XA CN201510061781A CN104681328B CN 104681328 B CN104681328 B CN 104681328B CN 201510061781 A CN201510061781 A CN 201510061781A CN 104681328 B CN104681328 B CN 104681328B
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- Prior art keywords
- switch
- power supply
- lock
- power
- circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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Abstract
The embodiment of the invention discloses a kind of electric operation case, the power switch that setting is connected with power supply circuit in casing, and the switch lock that power switch can be controlled to open or close is set on outside the enclosure wall, power switch is driven to open when switch lock is locked, turn off power supply circuit, and then prevent power supply from being powered to electrical equipment by power supply circuit, electrical equipment loses electric power and shuts down, simultaneously, box door lock pins chamber door, prevent chamber door from being opened, so as to avoid other staff from turning on power supply circuit from box house.Using electric operation case provided in an embodiment of the present invention, maintainer can lock locking switch when electrical equipment is overhauled, carry out service work in the case where electrical equipment power-off and chamber door can not be opened, other staff's maloperation is avoided to be operated using electric equipment, the personal safety of effective guarantee maintainer and the equipment safety of electrical equipment.
Description
Technical Field
The invention relates to the technical field of safety, in particular to an electric operating box.
Background
The electric operating box can control a power supply circuit arranged between a power supply source and electric equipment, the power supply source supplies power to the electric equipment by switching on the power supply circuit, the power supply source stops supplying power to the electric equipment by switching off the power supply circuit, and therefore electric power control on the electric equipment is achieved.
The electric operation box is usually provided with a start button, a stop button and an emergency stop button, the power supply circuit can be switched on after the start button is pressed, the power supply circuit can be switched off after the stop button is pressed, the connecting circuit between the power supply and the power supply circuit can be switched off after the emergency stop button is pressed, and the emergency stop button can ensure that the power transmission between the power supply and the electric equipment is stopped after the stop button is out of work. When the staff overhauls the consumer, can press the outside stop button of electrical operation box, make supply circuit turn-off to guarantee the personal safety of maintainer when overhauing the consumer and the equipment safety of consumer.
However, in the process of the maintenance work performed by the maintenance personnel, if other personnel do not know that the maintenance work is performed at the moment and press the start button outside the electric operation box, the power supply circuit is turned on, so that the maintenance personnel are possibly in danger, serious safety accidents are caused, and meanwhile, the electric equipment is possibly damaged. In addition, when the maintenance personnel carry out maintenance work, if other personnel open the chamber door of electrical operation box, make supply circuit switch on manually, then also can threaten maintenance personnel's personal safety and equipment safety equally.
Disclosure of Invention
The embodiment of the invention provides an electric operation box, which aims to solve the problems that the existing electric operation box is easy to operate by mistake and cannot meet the requirement of safe maintenance.
In order to solve the technical problem, the embodiment of the invention discloses the following technical scheme:
an electric operating box is used for controlling a power supply source to supply power to electric equipment and comprises a box body, a power supply circuit, a power supply switch and at least one switch lock, wherein,
the box body is provided with a box door, and the at least one switch lock is arranged on the outer wall of the box door; the box door is provided with a box door lock;
the power supply circuit is positioned in the box body, and two ends of the power supply circuit are respectively connected with the power supply and the electric equipment;
the power supply switch is arranged inside the box body and is connected in series in the power supply circuit;
each switch lock is respectively connected with the power supply switch and the box door lock, when each switch lock is opened, the power supply switch is closed, and the box door lock does not lock the box door; when any one switch lock is locked, the power supply switch is opened, and the box door lock locks the box door.
Optionally, a control circuit is arranged in the box body;
the control loop comprises a control piece, a control piece power supply and at least one control piece switch, wherein the control piece and each control piece switch are connected in series, and a circuit formed by the series connection and the control piece power supply form a loop;
each switch lock is connected with an independent control member switch, when the switch lock is opened, the switch lock drives the corresponding control member switch to be closed, and when the switch lock is locked, the switch lock drives the corresponding control member switch to be opened;
when the control loop is powered on, the control piece drives the power supply switch to be closed, and when the control loop is powered off, the control piece drives the power supply switch to be opened.
Optionally, the switch lock is provided with a plurality of switches;
the control loop comprises the control member switches the number of which is the same as that of the switch locks.
Optionally, the box door lock comprises a lock and a box door lock circuit; wherein,
the locking piece has two states of extending and retracting, when the locking piece extends, the locking piece clamps the box body to prevent the box door from being opened, and when the locking piece retracts, the locking piece does not clamp the box body to prevent the box door from being opened;
the box door lock circuit is connected with the control piece in parallel and comprises a locking piece controller and a first locking piece switch connected with the locking piece controller in series;
the first lock switch is driven by the control element, when the control loop is electrified, the control element drives the first lock switch to be closed, and when the control loop is powered off, the control element drives the first lock switch to be opened;
the latch fitting controller with the latch fitting is corresponding, works as when case lock circuit circular telegram, latch fitting controller drive the latch fitting is withdrawed, works as when case lock circuit outage, latch fitting controller drive the latch fitting stretches out.
Optionally, a door opening device connected to the locking member is disposed on the door, and the locking member is driven to retract when the door opening device is opened.
Optionally, a power switch is arranged in the box body;
the power switch is connected in the power supply circuit in series and used for controlling a power supply source to supply power to the power supply circuit;
the box door lock circuit also comprises a power switch controller and a second locking piece switch;
the second latch switch is connected in series with the latch controller, and the second latch switch and the latch controller connected in series are connected in parallel with the power switch controller;
the power switch and the second locking piece switch correspond to the power switch controller respectively, when the box door lock circuit is powered on, the power switch controller drives the power switch and the second locking piece switch to be closed, and when the box door lock circuit is powered off, the power switch controller drives the power switch and the second locking piece switch to be opened.
Optionally, a prompter is further arranged on the surface of the box body and used for prompting the state information of the switch lock, wherein the state information comprises a warning word and the name, the contact way and the affiliated unit of a person in charge for locking the switch lock.
Optionally, the box body is further provided with an opening device and a stopping device;
the opening device comprises an opening button arranged on the box door and an opening switch connected with the opening button;
the opening switch is connected in the power supply circuit in series and drives the opening switch to be closed when the opening button is pressed;
the stop device comprises a stop button arranged on the box door and a stop switch connected with the stop button;
the stop switch is connected in series in the power supply circuit and is driven to be turned on when the stop button is pressed.
Optionally, the surface of the box body is further provided with an emergency stop device;
the emergency stop device comprises an emergency stop knob arranged on the box door and an emergency stop switch connected with the emergency stop knob;
the emergency stop switch is connected in the power supply circuit in series and used for controlling a power supply source to supply power to the power supply circuit, and the emergency stop switch is driven to be turned on when the emergency stop knob is rotated by a preset angle.
According to the technical scheme, the power supply switch connected with the power supply circuit in series is arranged in the box body, the switch lock capable of controlling the power supply switch to be opened or closed is arranged on the outer wall of the box body, the power supply switch is driven to be opened when the switch lock is locked, the power supply circuit is turned off, the power supply source is prevented from supplying power to the electric equipment through the power supply circuit, the electric equipment loses power and stops running, meanwhile, the box door lock locks the box door, the box door cannot be opened, and therefore other people are prevented from conducting the power supply circuit from the interior of the box body and enabling the electric equipment to run; when the switch lock is opened, the power supply switch is driven to be closed, the power supply circuit is conducted, then the power supply supplies power to the electric equipment through the power supply circuit, the electric equipment starts to operate, and meanwhile, the box door lock does not lock the box door, so that the box door can be opened. By applying the electric operation box provided by the embodiment of the invention, a maintainer can lock the switch lock when the electric equipment is overhauled, and the overhauling work is carried out under the condition that the electric equipment is powered off and the box door cannot be opened, so that the misoperation of other personnel for using the electric equipment is avoided, the personal safety of the maintainer and the equipment safety of the electric equipment are effectively ensured, and the electric operation box provided by the embodiment of the invention can also be applied to other situations needing to ensure the circuit to be turned off.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an electrical operation box according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a control loop in an electrical control box according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a door of an electrical operating box according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a control loop in another electrical control box according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a door lock of an electrical control box according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another electric control box door lock according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of an electrical operating box according to an embodiment of the present invention, which is capable of controlling a power supply 1 to supply power to an electrical device 2 through a power supply circuit 4, wherein two ends of the power supply circuit 4 are respectively connected to the power supply 1 and the electrical device 2, the power supply 1 may be any type of power supply, and the electrical device 2 may be any device that requires power, for example, a transmission belt for transmitting sinter in a sintering machine, etc.
The electric operation box comprises a box body 3, a power supply switch 5 and at least one switch lock 6, wherein a power supply circuit 4 penetrates through the interior of the box body 3, the power supply switch 5 connected with the power supply circuit 4 in series is arranged in the box body 3, and the power supply circuit 4 is conducted when the power supply switch 5 is closed, so that the power supply 1 can supply power to the electric equipment 2, and the normal operation of the electric equipment 2 is guaranteed; this power supply switch 5 supply circuit 4 turn-offs when opening, makes power supply 1 can not provide electric power to consumer 2, guarantees consumer 2 shut down, when the maintainer carries out the maintenance work, need ensure consumer 2 shut down and the outage, just so can avoid the maintainer because of consumer 2 operation is injured to and avoid consumer 2 operation to cause the injury to equipment self when overhauing.
However, if other people mistakenly close the power supply switch 5 at this time and power the electric equipment 2, the personal safety of the maintainer and the equipment safety of the electric equipment 2 may be greatly damaged, and therefore, in this embodiment, a switch lock 6 is further provided on the outer wall of the box body 3 for opening or closing the power supply switch 5 in the power supply circuit 4 when locking or opening.
The switch lock 6 is connected with the power supply switch 5, the power supply switch 5 is driven to be closed when the switch lock 6 is opened, and the power supply switch 5 is driven to be opened when the switch lock 6 is locked, in a specific embodiment of the invention, the switch lock 6 can be a lock with a key and a key hole, when the key rotates for a certain angle, the switch lock 6 is locked, the key can be pulled out from the key hole, a maintainer carries the key to carry out maintenance work, other personnel cannot open the switch lock 6 without the key matched with the key hole, namely other personnel cannot drive the power supply switch 5 to be closed after the maintainer operates the power supply switch 5 to be opened, the electric equipment 2 is powered off, after the maintenance work is finished, the maintainer inserts the key back into the key hole and rotates for a certain angle in the opposite direction, so that the switch lock 6 is opened, and the key cannot be pulled out from the key hole.
In another embodiment of the present invention, the switch lock 6 may also be a combination lock, when the service personnel sets a combination for the combination lock, the combination lock is locked, the power supply to the electric device 2 is cut off, when the service personnel finishes the service work, the combination is input into the combination lock, the combination lock is unlocked, and the electric device 2 is powered on.
The way that the switch lock 6 drives the power supply switch 5 to be opened or closed can be mechanical movement, that is, the part of the switch lock 6 penetrating into the box body 3 touches the power supply switch 5 to open or close the power supply switch 5, and the control of the power supply switch 5 can also be completed through an electronic component connected with the switch lock 6.
The box body 3 has a box door 15 that can be opened or closed, and a worker can check or adjust cables, power supplies, components, and the like in the box body 3 by opening the box door 15, and the switch lock 6 may also be provided on the box door 15.
In addition, the box door 15 is also provided with a box door lock (not shown in the figure) capable of locking the box door, each switch lock 6 is respectively connected with the power supply switch 5 and the box door lock, when each switch lock 6 is opened, the power supply switch 5 is closed to enable the power supply circuit 4 to be conducted, and the box door lock does not lock the box door 15 to enable the box door 15 to be opened; when any one of the switch locks 6 is locked, the power supply switch 5 is turned on to turn off the power supply circuit 4, and the box door lock locks the box door 15 so that the box door 15 cannot be opened. In this embodiment, the switch lock 6 and the power supply switch 5 may be connected by a mechanical connection, a driving connection, a circuit connection, and the like.
In this embodiment, through opening or locking switch lock 6, switching on or shutting off of control supply circuit 4 to and control chamber door 15 can be opened or can not be opened, thereby make the maintainer when carrying out the maintenance work, only need locking switch lock 6, can ensure that other personnel can neither switch on supply circuit 4 by the box 3 outside, also can not open chamber door 15 and switch on supply circuit 4 in the box 3 inside, effectively ensure the personal safety and the equipment safety of maintainer when carrying out the maintenance work.
In another embodiment of the present invention, a control circuit 7 is disposed inside the box 3 in the above-mentioned embodiment, and the above-mentioned action of the switch lock 6 to drive the power supply switch 5 to open or close can be performed by the control circuit 7, as shown in fig. 2, the control circuit 7 includes a control member 10, a control member power source 9 and at least one control member switch 8 connected in series, where the control member 10 and each control member switch 8 are connected in series and form a loop with the control member power source 9, when the control circuit 7 is on, the whole control circuit 7 is powered on, the control member power source 9 can supply power to the control member 10, and when the control circuit 7 is off, the control circuit 7 is powered off, and the control member power source 9 cannot supply power to the control member.
The control member 10 corresponds to the power supply switch 5, when the control circuit 7 is powered on, the control member 10 drives the power supply switch 5 to be closed, and when the control circuit 7 is powered off, the control member 10 drives the power supply switch 5 to be opened.
In one embodiment of the invention, the control member 10 may be a relay, contactor or other device capable of actuating the power switch 5, in the present embodiment, taking the control element 10 as a contactor as an example, the power supply switch 5 may be a normally open contact corresponding to the contactor, when the contactor is not electrified, the normally open contact is not controlled by the contactor and keeps an open state, and when the contactor is electrified, the normally open contact is controlled by the contactor and keeps a closed state, for example, the contactor is provided with an iron core, a coil is wound on the iron core, the normally open contact is an armature, when the contactor is powered on, the coil and the iron core generate an electromagnetic effect, the armature can be attracted by the electromagnetic force to move towards the iron core, the armature can move to a disconnection point of a certain circuit to enable the circuit to be conducted, and when the contactor is powered off, the electromagnetic force disappears, the armature recovers to the original state, and the circuit is switched off.
The power supply switch 5 can control the power supply circuit 4 to be turned on or off, and the control member 10 can control the power supply switch 5 to be turned on or off, while in the present embodiment, the control member switch 8 can control the control member 10 to be powered on or powered off.
The control member switch 8 is connected with the switch lock 6, the control member switch 8 is driven to be closed when the switch lock 6 is opened, the control member switch 8 is driven to be opened when the switch lock 6 is locked, the switch lock 6 can be contacted with the control member switch 8 through a part penetrating the box body 3, and then the control member switch 8 is driven to be closed or opened, for example, the control member switch 8 can be a normally open switch, when the switch lock 6 is opened, the switch lock 6 pushes the control member switch 8 to the control loop 7, so that the control member switch 8 can be conducted with the control loop 7, and when the switch lock 6 is locked, the switch lock 6 pushes the control member switch 8, so that the control member switch 8 is recovered to the normally open state.
In the embodiment, the control circuit 7 is arranged in the box body 3, so that the control element 10 in the control circuit 7 drives the power supply switch 5 to be closed when the control circuit 7 is powered on, and drives the power supply switch 5 to be opened when the control circuit 7 is powered off, and the control element switch 8 connected in series in the control circuit 7 is connected with the switch lock 6, so that the switch lock 6 drives the control circuit 7 to be powered on or powered off by closing or opening the control element switch 8, and therefore the switch lock 6 is used for controlling the power supply switch 5 to be closed or opened, and further controlling the power supply circuit 4 to be switched on or switched off.
In another embodiment of the invention, as shown in fig. 3 and 4, the electrical control box of the above embodiment comprises a plurality of switch locks 6 arranged on the outer wall of the box 3, and the control circuit 7 comprises a plurality of control switches 8 connected in series with the control member 10 and the control member power supply 9, the number of control switches 8 corresponding to the number of switch locks 6, each switch lock 6 being connected to a separate control switch 8, i.e. each switch lock 6 controls a control switch 8.
In this embodiment, the control circuit 7 can be turned on only when each control switch 8 in the control circuit 7 is closed, and when any control switch 8 is opened, the control circuit 7 is in an off state, and the design of this embodiment allows a plurality of maintenance personnel to perform maintenance work simultaneously in practical application, for example, in a sintering production line, the length of 1000 meters can be reached only by a transmission belt, when a plurality of maintenance personnel perform maintenance work simultaneously, the maintenance personnel may not know that other maintenance personnel are performing maintenance work, if the maintenance personnel open the switch lock 6 to use the electric equipment 2 to operate at this time, the other maintenance personnel may be dangerous, therefore, the design of the plurality of switch locks 6 in this embodiment enables a plurality of maintenance personnel to perform maintenance on the electric equipment 2 or other aspects simultaneously, and when any maintenance personnel do not complete maintenance work, the electric equipment 2 can not operate, and only after all the maintainers finish the maintenance work, the electric equipment 2 is operated, so that the personal safety of all the maintainers is effectively guaranteed.
In another embodiment of the present invention, as shown in fig. 5, the door lock of the door 15 in the above-described embodiment includes a locker 14 and a door lock circuit 11, wherein the locker 14 has both an extended state and a retracted state, the locker 14 catches the body 3 when the locker 14 is extended so that the door 15 cannot be opened, and the locker 14 does not catch the body 3 when the locker 14 is retracted so that the door 15 can be opened.
The box door lock circuit 11 is connected in parallel with the control member 10, so that the power when the box door lock circuit 11 is on comes from the control member power supply 9 in the control circuit 7, as shown in fig. 5, the box door lock circuit 11 includes a lock member controller 13 and a first lock member switch 12 connected in series with the lock member controller 13, and the first lock member switch 12 is driven by the control member 10 in the above embodiment, and when the control member 10 does not drive the first lock member switch 12, the first lock member switch 12 is kept in an open state, so that the box door lock circuit 11 is turned off, so that when the control circuit 7 is turned off, the control member 10 cannot drive the first lock member switch 12, and the box door lock circuit 11 is also necessarily turned off; when the control circuit 7 is powered on, the control part 10 can drive the first lock switch 12 to be closed, so that the box door lock circuit 11 is conducted.
The latch controller 13 corresponds to the latch 14, when the box door lock circuit 11 is powered on, the latch controller 13 drives the latch 14 to retract so that the latch 14 does not catch the box body 3, when the box door lock circuit 11 is powered off, the latch controller 13 extends the latch 14 so that the latch 14 catches the box body 3, for example, similar to the principle that the control part 10 drives the power switch 5 to open or close, the latch controller 13 may be a contactor, the latch 14 may be an armature, when the latch controller 13 is powered on, the latch 14 is driven to retract, when the latch controller 13 is powered off, the latch 14 is driven to extend, wherein the latch 14 may be a rotatable iron bar, when the contactor is powered on, electromagnetic force attracts the iron bar to rotate to a position where the length direction thereof is parallel to the edge of the box door 15 so that the iron bar cannot catch the box body 3, when the contactor is powered off, the electromagnetic force disappears, the iron bar loses attraction and rotates to fall to a position perpendicular to the edge of the box door 15 by gravity, the container 3 is jammed and the door 15 cannot be opened.
In this embodiment, control member 10 can not only control opening or closing of power supply switch 5, also can control switching on or shutting off of box door lock circuit 11, when box door lock circuit 11 switches on, latch fitting controller 13 among box door lock circuit 11 can drive latch fitting 14 and withdraw, chamber door 15 can be opened, when box door lock circuit 11 switches off, latch fitting controller 13 among box door lock circuit 11 drives latch fitting 14 and stretches out, chamber door 15 can not open on the basis of this embodiment, can guarantee that the maintainer is when carrying out maintenance work, other personnel can not open chamber door 15, thereby avoid other personnel to switch on using electrical equipment 2 to operate with power supply circuit 4 inside 3 boxes.
In another embodiment of the present invention, as shown in fig. 3, the door 15 of the above-mentioned embodiment is provided with a door opening device 19 connected to the locking member 14, and the locking member 14 is driven to retract when the door opening device 19 is unlocked, so that the door 15 can be opened, for example, the door opening device 19 may be composed of a lock mechanically connected to the locking member 14 and a special key capable of unlocking the lock, and the locking member 14 retracts when the special key unlocks the lock, and the door opening device 19 of the present embodiment may forcibly open the door 15 in an emergency to operate the internal components of the cabinet 3.
In another embodiment of the present invention, as shown in fig. 6, a power switch 18 is disposed in the box 3 of the above embodiment, and the power switch 18 is connected in series in the power supply circuit 4 and is used for controlling the power supply 1 to supply power to the power supply circuit 4, in actual production, the power supply 1 is similar to a general household power supply circuit in a household, the power switch 18 in the present invention can be regarded as a switch for controlling the general household power supply circuit in the household, when the switch is opened, the general power supply circuit stops supplying power to the interior, when the switch is closed, the general power supply circuit supplies power to the interior, similarly, when the power switch 18 is opened, the power supply 1 stops supplying power to the power supply circuit 4, when the power switch 18 is closed, the power supply 1 supplies power to the power supply circuit 4, and by disposing the power switch 18 in the connection circuit, the safety of an overhaul personnel can be ensured more.
The box door lock circuit 11 in the above embodiment further includes a power switch controller 17 and a second locking piece switch 16;
wherein, the second latch switch 16 is connected in series with the latch controller 13, and the second latch switch 16 and the latch controller 13 connected in series are connected in parallel with the power switch controller 17;
the power switch 18 and the second locking piece switch 16 correspond to the power switch controller 17 respectively, when the box door lock circuit 11 is electrified, the power switch controller 17 drives the power switch 18 and the second locking piece switch 16 to be closed, so that the power supply 1 transmits power to the power supply circuit 4, and the locking piece 14 is withdrawn by the electrified locking piece controller 13, so that the box door 15 can be opened;
when the control circuit 7 is powered off, the power switch controller 17 drives the power switch 18 and the second locking piece switch 16 to be turned on, so that the power supply 1 stops transmitting power to the power supply circuit 4, and the locking piece controller 13 after the power off drives the locking piece 14 to extend, so that the door 15 cannot be opened.
In another embodiment of the present invention, on the basis of the above embodiment, as shown in fig. 3, a prompt 23 is further disposed on the surface of the box 3, the prompt 23 can prompt status information of the switch lock 6, the prompt 23 may be an electronic screen and an input keyboard, or may be a transparent card socket into which a card can be inserted, the prompt 23 is used to prompt status information of the switch lock 6, and the status information may include a warning word, and a name, a contact manner, and an affiliated entity of a person in charge of locking the switch lock 6.
For example, the prompter 23 is a card and a card seat which are matched, and after the switch lock 6 is locked, the maintainer can note that the electric equipment 2 is being overhauled at the moment on the card, and leave the information of the name, the contact way, the unit and the like of the maintainer, so that when other staff need to open the electric equipment 2, the maintainer can be found through the information on the card, and after the switch lock 6 is opened by the maintainer, other staff can open the electric equipment 2.
In another embodiment of the present invention, as shown in fig. 3, the box body 3 of the electric operation box is further provided with an opening device and a stopping device, which can be provided on the box door 15, wherein,
the opening device comprises an opening button 20 arranged on the box door 15 and an opening switch connected with the opening button 20, the opening switch is connected in series in the power supply circuit 4, the opening switch can be driven to be closed when the opening button 20 is pressed down, the opening button 20 is pressed down when the staff needs to open the electric equipment 2, and the electric equipment 2 is used to operate on the premise that the power supply circuit 4 is switched on.
The stopping device comprises a stopping button 21 arranged on the box door 15 and a stopping switch connected with the stopping button 21, wherein the stopping switch is connected in series in the power supply circuit, the stopping switch is driven to be turned on when the stopping button 21 is pressed, when the staff needs to turn off the electric equipment 2, the stopping button 21 is pressed, the power supply circuit 4 is turned off, and the electric equipment 2 stops running.
In another embodiment of the present invention, as shown in fig. 3, the surface of the box body 3 of the electrical appliance operation box is further provided with an emergency stop device, the emergency stop device comprises an emergency stop knob 22 arranged on the box door 15 and an emergency stop switch connected with the emergency stop knob 22, the emergency stop switch is connected in series in the power supply circuit 4 and is used for controlling the power supply 1 to supply power to the power supply circuit 4, and the emergency stop switch is driven to be turned on when the emergency stop knob 22 is rotated by a preset angle, so as to ensure that the connection between the power supply 1 and the power supply circuit 4 is cut off by the emergency stop device when an emergency situation occurs.
In another embodiment of the present invention, as shown in fig. 3, a rotatable handle 24 is further disposed on the box door 15 of the electrical operation box, one end of the handle 24 penetrating through the box door 15 is connected with a fastener capable of also fastening the box body 3, when the handle 24 rotates by a certain angle, the fastener is driven to fasten the box body 3, so that the box door 15 cannot be opened, when the handle 24 rotates by a certain angle in the reverse direction, the fastener is driven to not fasten the box body 3, so that the box door 15 can be opened, the handle 24 and the fastener are disposed so that the box door 15 can be closed on the box body 3, and cannot be opened randomly, so as to prevent dust from falling into the interior of the electrical operation box.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An electrical operating box for controlling a power supply (1) to supply power to an electrical device (2), characterized in that it comprises a box (3), a power supply circuit (4), a power supply switch (5) and at least one switch lock (6), wherein,
the box body (3) is provided with a box door (15), and the at least one switch lock (6) is arranged on the outer wall of the box door (15); the box door (15) is provided with a box door lock;
the power supply circuit (4) is positioned in the box body (3), and two ends of the power supply circuit (4) are respectively connected with the power supply source (1) and the electric equipment (2);
the power supply switch (5) is arranged inside the box body (3) and is connected in series in the power supply circuit (4);
each switch lock (6) is respectively connected with the power supply switch (5) and the box door lock, when each switch lock (6) is opened, the power supply switch (5) is closed, and the box door lock does not lock the box door (15); when any one switch lock (6) is locked, the power supply switch (5) is opened, and the box door lock locks the box door (15);
wherein a control loop (7) is arranged in the box body (3);
the control loop (7) comprises a control part (10), a control part power supply (9) and at least one control part switch (8), wherein the control part (10) and each control part switch (8) are connected in series, and the series circuit and the control part power supply (9) form a loop;
each switch lock (6) is connected with an independent control member switch (8), when the switch lock (6) is opened, the switch lock (6) drives the corresponding control member switch (8) to be closed, and when the switch lock (6) is locked, the switch lock (6) drives the corresponding control member switch (8) to be opened;
when the control loop (7) is powered on, the control part (10) drives the power supply switch (5) to be closed, and when the control loop (7) is powered off, the control part (10) drives the power supply switch (5) to be opened;
the box door lock comprises a lock piece (14) and a box door lock circuit (11); wherein,
the locking piece (14) has two states of extending and retracting, when the locking piece (14) extends, the locking piece (14) blocks the box body (3) to prevent the box door (15) from being opened, and when the locking piece (14) retracts, the locking piece (14) does not block the box body (3) to prevent the box door (15) from being opened;
the box door lock circuit (11) is connected with the control piece (10) in parallel and comprises a locking piece controller (13) and a first locking piece switch (12) connected with the locking piece controller (13) in series;
the first lock switch (12) is driven by the control part (10), when the control circuit (7) is electrified, the control part (10) drives the first lock switch (12) to be closed, and when the control circuit (7) is powered off, the control part (10) drives the first lock switch (12) to be opened;
latch fitting controller (13) with latch fitting (14) are corresponding, work as when the circuit at latch fitting controller (13) place circular telegram, latch fitting controller (13) drive latch fitting (14) are withdrawed, work as when the circuit outage at latch fitting controller (13) place, latch fitting controller (13) drive latch fitting (14) stretch out.
2. An electric operating box according to claim 1, characterized in that said switch lock (6) is plural;
the control circuit (7) comprises the same number of control member switches (8) as the number of switch locks (6).
3. The electrical box according to claim 1, characterized in that said box door (15) is provided with a door opening device (19) connected to said latch (14), said latch (14) being actuated to retract when said door opening device (19) is opened.
4. An electric operating box according to claim 1, characterised in that a power switch (18) is arranged in the box (3);
the power switch (18) is connected in series in the power supply circuit (4) and is used for controlling a power supply (1) to supply power to the power supply circuit (4);
the box door lock circuit (11) further comprises a power switch controller (17) and a second locking piece switch (16);
the second latch switch (16) is connected in series with the latch controller (13), and the second latch switch (16) and the latch controller (13) connected in series are connected in parallel with the power switch controller (17);
the power switch (18) and the second locking piece switch (16) correspond to the power switch controller (17) respectively, when the box door lock circuit (11) is powered on, the power switch controller (17) drives the power switch (18) and the second locking piece switch (16) to be closed, and when the box door lock circuit (11) is powered off, the power switch controller (17) drives the power switch (18) and the second locking piece switch (16) to be opened.
5. An electric operation box according to claim 1,
the surface of the box body (3) is further provided with a prompter (23) for prompting the state information of the switch lock (6), wherein the state information comprises a warning sign, and the name, the contact and the affiliated unit of a person in charge for locking the switch lock (6) are locked.
6. The electrical box according to claim 1, characterized in that said box body (3) is further provided with opening means and stopping means;
the opening device comprises an opening button (20) arranged on the box door (15) and an opening switch connected with the opening button (20);
the opening switch is connected in series in the power supply circuit (4) and is driven to be closed when the opening button (20) is pressed;
the stopping device comprises a stopping button (21) arranged on the box door (15) and a stopping switch connected with the stopping button (21);
the stop switch is connected in series in the power supply circuit (4) and is driven to open when the stop button (21) is pressed.
7. The electrical cabinet according to claim 6, characterized in that the surface of the cabinet (3) is further provided with an emergency stop device;
the emergency stop device comprises an emergency stop knob (22) arranged on the box door (15) and an emergency stop switch connected with the emergency stop knob (22);
the emergency stop switch is connected in the power supply circuit (4) in series and used for controlling a power supply source (1) to supply power to the power supply circuit (4), and when the emergency stop knob (22) is rotated by a preset angle, the emergency stop switch is driven to be turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510061781.XA CN104681328B (en) | 2015-02-06 | 2015-02-06 | A kind of electric operation case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510061781.XA CN104681328B (en) | 2015-02-06 | 2015-02-06 | A kind of electric operation case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104681328A CN104681328A (en) | 2015-06-03 |
| CN104681328B true CN104681328B (en) | 2017-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510061781.XA Expired - Fee Related CN104681328B (en) | 2015-02-06 | 2015-02-06 | A kind of electric operation case |
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| Country | Link |
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| CN (1) | CN104681328B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145083A (en) * | 2016-03-01 | 2017-09-08 | 汤毅 | A kind of multi-purpose tool management equipment |
| CN108439118A (en) * | 2018-03-09 | 2018-08-24 | 方晓妹 | A kind of elevator car roof repair safety guard |
| CN113097893B (en) * | 2021-05-21 | 2022-08-05 | 深圳市龙星辰电源有限公司 | Be applied to medical site and be convenient for maintain power |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202738285U (en) * | 2012-08-08 | 2013-02-13 | 北京瑞赛长城航空测控技术有限公司 | Flame-proof device and interlocking device |
| JP2014233158A (en) * | 2013-05-29 | 2014-12-11 | ファナック株式会社 | Electric circuit switching apparatus |
| CN103366985A (en) * | 2013-07-03 | 2013-10-23 | 天津市既济电气控制设备有限公司 | Mobile power switch special for maintenance and debugging |
| CN204390938U (en) * | 2015-02-06 | 2015-06-10 | 莱芜钢铁集团有限公司 | A kind of electric operation case |
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| Publication number | Publication date |
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| CN104681328A (en) | 2015-06-03 |
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Granted publication date: 20170623 |