CN114122931B - Safety control device for safety test of electrical switch cabinet - Google Patents
Safety control device for safety test of electrical switch cabinet Download PDFInfo
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- CN114122931B CN114122931B CN202111414531.1A CN202111414531A CN114122931B CN 114122931 B CN114122931 B CN 114122931B CN 202111414531 A CN202111414531 A CN 202111414531A CN 114122931 B CN114122931 B CN 114122931B
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- 238000011076 safety test Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 97
- 238000012360 testing method Methods 0.000 claims abstract description 62
- 238000006073 displacement reaction Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims description 25
- 230000001012 protector Effects 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 10
- 239000003086 colorant Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004870 electrical engineering Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B15/00—Supervisory desks or panels for centralised control or display
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/24—Structural association with auxiliary mechanical devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Trip Switchboards (AREA)
Abstract
The invention discloses a safety control device for safety test of an electrical switch cabinet, and mainly relates to the field of electrical engineering. Comprises a shell and a stepping driving device; a circuit plugging device is arranged between the shell and the electrical cabinet, and comprises a power transmission circuit joint, a system test joint, a power transmission circuit interface and a system test interface which are arranged on the shell in a matching way and on the inner wall of a cabinet groove of the electrical cabinet; the stepping driving device drives the shell to realize stepping displacement relative to the cabinet groove of the electrical cabinet; the invention has the beneficial effects that: the electric safety of operators can be ensured. The circuit in the device achieves self-locking safety when being communicated, prevents the device from being pulled out or electrified, and ensures the electricity utilization safety in a working state; the device can instruct the connection condition of the computer system line and the power transmission circuit, can accurately instruct the current connection state and the connection point position of the device, and avoids the problem that the safety control device in the traditional mode is difficult to realize good control on the displacement between the whole device and the switch cabinet.
Description
Technical Field
The invention relates to the field of electrical engineering, in particular to a safety control device for a safety test of an electrical switch cabinet.
Background
The switch cabinet is an electrical device, the external line of the switch cabinet firstly enters the main control switch in the cabinet, then enters the sub-control switch, and each shunt is arranged according to the requirement. The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of generating, transmitting, distributing and converting electric energy of the electric power system. The components in the switch cabinet mainly comprise a breaker, a disconnecting switch, a load switch, an operating mechanism, a transformer, various protection devices and the like. The method is mainly suitable for various different occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industry textile, factories and mining enterprises, residential communities, high-rise buildings and the like.
The whole switch cabinet is used as a centralized control power distribution center, and the power utilization safety of operators is required to be ensured when the switch cabinet is maintained, debugged and used. The switch cabinet is subdivided into independent control safety control devices to carry out independent control power supply to each unit when supplying power to the system, when the independent circuit is required to be overhauled or controlled, the safety control devices are required to be ensured to be capable of independently separating the circuit and guaranteeing the electricity utilization safety of workers, electric shock prevention is realized, the workers are convenient to overhaul and maintain the circuit, the safety control devices in the traditional mode are difficult to realize good control on the displacement between the whole device and the switch cabinet, accurate control cannot be realized on the connection condition of the circuit, and electric shock danger is extremely easy to cause. Because the electrical components in the safety control device are easy to be pulled out by manual pulling by more workers, the safety control device for the safety test of the electrical switch cabinet is needed.
Disclosure of Invention
The invention aims to provide a safety control device for a safety test of an electrical switch cabinet, which is used as a unit power distribution control center of the electrical switch cabinet and can ensure the electricity utilization safety of operators. The device can instruct the connection condition of computer system circuit and transmission circuit, can accurate instruction device current connection state and hookup point location, the staff of being convenient for uses the safety control device of having avoided traditional mode to be difficult to realize good control to the displacement between device whole and the cubical switchboard to different situations, and then can't realize accurate control to the connection condition of circuit, very easily causes the danger of electric shock.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
a safety control device for safety test of an electrical switch cabinet comprises a shell and a stepping driving device;
a circuit plugging device is arranged between the shell and the electrical cabinet, and comprises a power transmission circuit joint, a system test joint, a power transmission circuit interface and a system test interface which are arranged on the shell in a matching way and on the inner wall of a cabinet groove of the electrical cabinet;
the stepping driving device drives the shell to realize stepping displacement relative to the cabinet groove of the electrical cabinet;
the connection of the system test connector and the system test interface and the connection of the power transmission circuit connector and the power transmission circuit interface are sequentially and respectively controlled by controlling the moving distance of the step displacement.
The stepping driving device is in a three-point two-section stepping displacement mode, and the connection state of the system test connector and the system test interface, the connection state of the power transmission circuit connector and the power transmission circuit interface and the complete disconnection state are controlled through the difference of displacement distances of the three-point two-section stepping displacement;
the stepping driving device is a worm and gear transmission mechanism, and the worm and gear transmission mechanism comprises a driving worm arranged outside the shell and a worm master strip fixedly arranged in the electric cabinet groove and matched with the driving worm; three-point two-section stepping displacement is realized between the driving worm and the worm bus bar by rotation.
The driving worm is arranged on the bottom surface of the shell, the worm strips are correspondingly arranged on the bottom surface of the cabinet groove of the electric cabinet, the driving worm is connected to the driving shaft, and the driving shaft is arranged in the mounting groove on the bottom surface of the shell;
the step driving device is matched with a state indicating device; the state indicating means indicates different connection states by driving the rotational position of the worm.
The rotating shaft of the state indicating device is driven with the driving shaft in a gear transmission mode, and the state indicating device is driven to rotate through the gear transmission mechanism by rotating the driving shaft, so that the state indicating device displays a three-point connection state to indicate the connection state of the control system test connector and the system test interface, the connection state of the power transmission circuit connector and the power transmission circuit interface and the complete disconnection state;
the gear transmission mechanism comprises a driving gear, a duplex gear and a driven gear; the driving gear is coaxially arranged on the driving shaft, the driven gear and the state indicating device are coaxially arranged, and the duplex gear is respectively meshed with the driving gear and the driven gear; the driven gear limits the rotation angle for the residual gear, the state indicating device comprises an indicating disc, a state indicating block is arranged on the tooth surface of the driven gear, a groove which is suitable for the three-point connection state is arranged on the state indicating block, and an elastic piece matched with the groove is arranged on the mounting groove body;
when the driving gear drives the driven gear to rotate through the duplex gear, the groove is in contact with the port of the elastic piece, and the elastic piece enters the groove for limiting, so that the corresponding state mark on the indicating disc displays a corresponding connection state indicating point position.
The inner surface of the state indicating block is provided with a bulge, the mounting groove body is provided with an elastic sheet, a travel switch and an indicator light circuit, the tail end of the elastic sheet is provided with a jack post which is matched with the bulge, and the beginning and the tail of the travel switch are respectively correspondingly connected with two indicator light circuits with different colors;
when the bulge on the surface of the state indicating block is contacted with the jack post to push the jack post, the elastic sheet pushes the travel switch to displace, so that the communication state of the different-color indicating lamp circuits is changed, and the three-point connection state is represented by observing the color state and the on-off state of the indicating lamp, namely, the connection state of the test joint of the control system and the test interface of the system, the connection state of the power transmission circuit joint and the power transmission circuit interface and the complete disconnection state are controlled.
The front end of the driving shaft is provided with a key hole, and the driving shaft is screwed by a special key to control the three-point connection state;
a circuit breaking protector for controlling the on-off of a circuit is arranged between the power transmission circuit joint and the power transmission circuit interface;
the key hole is connected with a safety protection device, the safety protection device controls the working state of the circuit breaking protector, and the circuit breaking protector locks the shell in the electric cabinet in the on state and locks the key hole.
The safety protection device comprises a plectrum driving long shaft and a plectrum switch;
one end of the pulling piece driving long shaft is connected with a knob switch, and the pulling piece switch is matched with a circuit protection switch of the circuit breaker protector; the driving long shaft of the plectrum and the plectrum switch are driven by a gear-rack transmission mechanism;
the toggle knob switch and the toggle piece driving long shaft drive the toggle piece switch to bidirectionally translate through the gear-rack transmission mechanism so as to control the opening and closing of the circuit protection switch;
the rotary poking plate is characterized in that a rotary poking plate is matched with the poking plate driving long shaft, the poking plate driving long shaft rotates to drive the rotary poking plate to rotate, an arc-shaped sliding long hole is formed in the rotary poking plate, a locking plate is connected to the rotary poking plate, and the locking plate slides in the sliding long hole in a limiting mode;
when the long shaft is driven by the poking piece to drive the rotating poking piece to rotate, the top of the arc sliding long hole of the rotating poking piece pushes the locking piece to move downwards, and the bottom of the locking piece penetrates through the bottom surface of the shell and then is inserted into the matched locking groove on the bottom surface of the electric cabinet groove to realize locking.
The safety protection device also comprises a movable safety locking plate and a vertical plate; the movable safety locking plate is provided with a first obtuse angle chute and a bottom chute, a second obtuse angle chute opposite to the first obtuse angle chute in direction is arranged on the movable safety locking plate, the locking piece is in limit relative sliding connection with the first obtuse angle chute and the second obtuse angle chute through short shafts, and the bottom of the movable safety locking plate is also in limit sliding connection with the bottom chute through the short shafts;
the movable safety locking plate is also connected with an L-shaped sealing plate, a transverse plate of the L-shaped sealing plate is provided with a safety hole, and the safety hole is matched with a key hole at the front end of the driving shaft; the transverse plate of the L-shaped sealing plate on the movable safety locking plate controls the alignment state of the safety hole and the key hole at the front end of the driving shaft through bidirectional sliding displacement.
The shell is internally provided with a computer system control element which is connected with a control system joint. The shell is provided with a switch door, and the switch door is provided with a handle, an indication display lamp arranged on an indication lamp circuit and a display screen connected with a control element of the computer system.
Compared with the prior art, the invention has the beneficial effects that:
1. the device is used as a unit power distribution control center of an electrical switch cabinet, and can ensure the electricity safety of operators. The circuit in the device achieves self-locking safety when being communicated, prevents the device from being pulled out or electrified, and ensures the electricity utilization safety in a working state; the device can instruct the connection condition of computer system circuit and transmission circuit, can accurate instruction device current connection state and hookup point location, the staff of being convenient for uses the safety control device of having avoided traditional mode to be difficult to realize good control to the displacement between device whole and the cubical switchboard to different situations.
2. The state indicating device arranged by the device can accurately indicate the connection condition of a computer system line and a power transmission circuit, and the indicating disc corresponds to the indicated area and the connection state of the indicating lamp through the indicating lamp connected with the travel switch, so that the position of the device can be accurately reflected, and the connection state of a system test connector and a system test interface, the connection state of the power transmission circuit connector and the power transmission circuit interface and the complete disconnection state are fed back.
3. The safety protection device is arranged, so that the device cannot be moved only after the power is cut off when the circuit in the device is communicated, the device can be moved through the special key, the safety of the device is further improved, and electric shock caused by misoperation during electrification is prevented.
4. When the test is performed, the input circuit is disconnected, the controlled circuit is checked and controlled through the panel of the computer system, and the device does not need to be further opened to control from the inside.
Drawings
Fig. 1 is a general view of the device of the present invention.
Fig. 2 is a tank view of the apparatus and electrical cabinet of the present invention.
Fig. 3 is a view of a step driving apparatus in the present invention.
Fig. 4 is an internal structural view of the step driving device in the present invention.
Fig. 5 is a view of the safety device of the present invention.
Fig. 6 is a view of the safety device of the present invention.
Fig. 7 is a view of the safety device of the present invention.
The reference numbers shown in the drawings:
1. a housing; 2. a power transmission circuit joint; 3. a system test joint; 4. a cabinet slot of the electrical cabinet; 5. a driving worm; 6. a snail mother strip; 7. a drive shaft; 8. a drive gear; 9. a duplex gear; 10. a driven gear; 11. A chute plate; 12. an indication disc; 13. a status indication block; 14. a groove; 15. an elastic member; 16. a cross plate; 17. a protrusion; 18. installing a groove body; 19. an elastic sheet; 20. a travel switch; 21. a top column; 22. a computer system control element; 23. a key hole; 24. a circuit breaking protector; 25. the poking piece drives the long shaft; 26. a toggle switch; 27. a knob switch; 28. rotating the poking plate; 29. arc sliding long hole; 30. a tooth hole; 31. a locking piece; 32. a locking groove; 33. a safety locking plate; 34. a vertical plate; 35. a first obtuse angle chute; 36. a bottom chute; 37. a second obtuse angle chute; 38. a first stub shaft; 39. a second stub shaft; 40. a sliding groove body; 41. A safety hole; 42. opening and closing a door; 43. a handle; 44. an indication display lamp; 45. a display screen; 46. a switch drive gear; 47. the mounting plate is bent.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.
The invention relates to a safety control device for a safety test of an electrical switch cabinet, which comprises a main body structure, a control device and a control device, wherein the main body structure comprises a shell 1 and a stepping driving device;
a circuit plugging device is arranged between the shell 1 and the electrical cabinet, and comprises a power transmission circuit connector 2, a system test connector 3, a power transmission circuit interface and a system test interface, wherein the power transmission circuit connector 2 and the system test connector 3 are arranged on the shell 1, and the power transmission circuit interface and the system test interface are arranged on the inner wall of the electrical cabinet groove 4 in a matching way; the stepping driving device drives the shell 1 to realize stepping displacement relative to the electric cabinet groove 4; the connection of the system test connector 3 and the system test interface and the connection of the power transmission circuit connector 2 and the power transmission circuit interface are sequentially and respectively controlled by controlling the moving distance of the step displacement.
The circuit plugging device is connected with two power transmission circuit joints 2 of the shell 1 as shown in the attached figure 1 of the specification, because the power transmission circuit joints 2 of the shell 1 are connected with the power input ends in the cabinet groove 4 of the electric cabinet firstly, after the power transmission circuit joints 2 of the shell 1 are connected with points, the power transmission circuit joints are connected with a circuit breaker 24 which is described below through a circuit, after the circuit is protected, the power input in the cabinet groove 4 of the electric cabinet is output through the other circuit connection, so that the circuit belt correspondingly controlled by the device is powered on; the system test connector 3 is connected with a test interface arranged in the electric cabinet groove 4, and the control circuit is adjusted to be opened and closed after the system test connector is connected.
Step driving device:
according to the use requirement and the safety of the device, the stepping mode of the stepping driving device is three-point two-section stepping displacement, wherein three-point two-section refers to the process of connecting, testing and separating two displacement distances of three state points, and the two-section displacement represents the connection state change of the power transmission circuit connector 2 and the power transmission circuit connector 2. The connection state of the system test connector 3 and the system test interface, the connection state of the power transmission circuit connector 2 and the power transmission circuit interface and the complete disconnection state are controlled by different displacement distances of three-point two-section stepping displacement.
The connection state indicated by the connection point is that the power transmission circuit joint 2 is connected with a power transmission circuit interface, and the system test joint 3 is connected with a system test interface; the test points are: the system test connector 3 is connected with the system test interface, and the power transmission circuit connector 2 is disconnected with the power transmission circuit interface; the separation point is: the power transmission circuit connector 2 is connected with a power transmission circuit interface, and the system test connector 3 is disconnected with a system test interface. The three-point state point positions and the two-section stepping displacement are realized by the following specific structures.
The stepping driving device has the specific structure that:
the stepping driving device is a worm and gear transmission mechanism, and the worm and gear transmission mechanism comprises a driving worm 5 arranged outside the shell 1 and a worm master strip 6 fixedly arranged in the electric cabinet groove 4 and matched with the driving worm 5; three-point two-section stepping displacement is realized between the driving worm 5 and the worm master strip 6 through rotation. The driving worm 5 is arranged on the bottom surface of the shell 1, the worm strip 6 is correspondingly arranged on the bottom surface of the cabinet groove 4 of the electric cabinet, the driving worm 5 is connected to the driving shaft 7, and the driving shaft 7 is arranged in the mounting groove body 18 on the bottom surface of the shell 1; the driving shaft 7 is rotated to drive the active worm 5 and the worm mother strip 6 in a meshing manner, so that relative displacement is generated between the shell 1 and the electric cabinet groove.
The step driving device is matched with a state indicating device; the status indication means indicates a "three-point" status by driving the rotational position of the worm screw, the status indication means being described below.
Status indication means:
the rotating shaft of the state indicating device is in transmission with the driving shaft 7 in the stepping driving device in a gear transmission mode, and the state indicating device is driven to rotate through the gear transmission mechanism by rotating the driving shaft 7, so that the state indicating device displays a three-point connection state to indicate the connection state of the control system test connector 3 and the system test interface, the connection state of the power transmission circuit connector 2 and the power transmission circuit interface and the complete disconnection state.
The specific structure of the state indicating device transmission mechanism is as follows:
the gear transmission mechanism shown in figure 3 of the drawings of the specification comprises a driving gear 8, a duplex gear 9 and a driven gear 10; the double gear 9 is: two gears which are coaxial and are separated by a certain distance are integrated into a whole to form the duplex gear 9. The driving gear 8 is coaxially arranged on the driving shaft 7, and the driven gear 10 and the state indicating device are coaxially arranged, so that the meshing transmission mechanism and the state indicating mechanism arranged on the driven shaft are connected to achieve synchronization; the duplicate gear 9 is meshed with the driving gear 8 and the driven gear 10 respectively; the driven gear 10 is a residual gear for limiting the rotation angle of the meshed duplex gear 9 and the driving gear 8.
The purpose of the driven gear 10 as a stub gear is two: the first is that the connection of the system test line and the circuit is an orderly connection process, and the driven teeth and the driving gear 8 are engaged for transmission limit so as to limit the maximum travel of the displacement of the driving shaft 7 of the stepping driving device, thereby preventing the system test connector 3 and the power transmission circuit connector 2 from running after the plugging is completed and negatively affecting the line connection and the durability; the second is to cooperate with an indicating disc 12 connected with a driven shaft, which is described below, if the driven gear 10 does not limit the driving gear 8, the indicating position of the indicating disc 12 will be disordered, for example, after the casing 1 is put into the cabinet groove 4 of the electrical cabinet, the indicating point is separated, tested and connected, the driving gear 8 is driven by the driving shaft 7 to continue rotating after the limitation is absent, the connecting point will rotate from the connecting indicating point to the separating point indicating point, and after the continuous rotation, the indicating disc 12 will be disordered from the indicating position, so that the driven gear 10 is a residual gear to limit the rotating angle. The angle of the incomplete state of the driven gear 10 is correspondingly proportioned to the gear ratio of the gear transmission mechanism in cooperation with a groove 14 provided on an indicating disc 12 and a state indicating block 13 described below.
The state indicating device has the specific structure that:
the state indicating device shown in fig. 4 of the accompanying drawings of the specification comprises an indicating disc 12, wherein the indicating disc 12 is provided with indicating areas corresponding to three state points, and the indicating areas are mutually angled. The state indicating disc 12 is connected with the gear shaft of the driven gear 10, and after connection, the rotating angle of the indicating disc 12 is consistent with the rotating angle of the driven gear 10, and the action of indicating the advancing distance of the stepping driving device is achieved through the meshing transmission of the driven gear 10 and the driving gear 8, so that when the stepping driving device is driven, the moving process and the state of the advancing of the shell 1 can be more conveniently and more intuitively seen, and the connection condition of the system test connector 3 and the system test connector and the connection condition of the power transmission circuit connector 2 and the power transmission circuit connector are fed back.
Further improvement:
the tooth surface of the driven gear 10 is provided with a state indicating block 13, the state indicating block 13 is provided with a groove 14 which is matched with the three-point connection state, the point position of the groove 14 corresponds to the disc, and the mounting groove body 18 is provided with an elastic piece 15 which is matched with the groove 14; as shown in figure 5 of the drawings, when the driving gear 8 drives the driven gear 10 to rotate through the duplex gear 9, the groove 14 contacts with the port of the elastic element 15, and the elastic element 15 enters into the groove 14 to limit sliding, so that the corresponding state mark on the indicating disc 12 displays a corresponding connection state indicating point. In connection with the key hole 23 provided at the front end of the drive shaft 7 described below, it is considered that a dedicated key screw driving is required, and if only the indicating disk 12 is provided, the drive shaft 7 needs to be turned by the dedicated key while the indicating disk 12 is always seen to be operated, and no clear indication point is perceived. After improvement, when the special key drives the indicating disc 12 to rotate to a three-point state through the gear transmission mechanism, the elastic piece 15 enters the groove 14 to limit and slide, has obvious insensitive and sounding, and can be known to reach the next state point through rotation.
Further improvement:
the specific structure is shown in figure 5 of the accompanying drawings of the specification, the inner surface of the state indicating block 13 is provided with a bulge 17, the mounting groove body 18 is provided with an elastic sheet 19, a travel switch 20 and an indicator light circuit, the tail end of the elastic sheet 19 is provided with a jack post 21 which is matched with the bulge 17, and the beginning and the tail end of the travel switch 20 are respectively correspondingly connected with two indicator light circuits with different colors; the travel switch 20 is used for switching on or off a control circuit by utilizing the collision of the production mechanical moving parts to enable the contacts to act, so as to achieve the purpose of communicating the control circuit.
When the protrusion 17 of the rotating surface of the status indicator block 13 contacts with the jack 21 to push the jack 21, the jack 21 pushes the elastic piece 19 to displace the contact of the travel switch 20, changing the communication status of the different color indicator light circuits.
For example: when the whole device is just put into the electrical cabinet, the whole circuit of the device is not connected, the indicator lamp is in an off state, the shell 1 gradually enters the electrical cabinet by rotating the driving shaft 7, and when the test joint 3 of the control system is connected with the test interface of the system, the bulge 17 on the rotating surface of the state indicator block 13 is contacted with the jacking column 21 to push the jacking column 21, the jacking column 21 pushes the elastic sheet 19 to enable the contact of the travel switch 20 to be displaced, and the indicator lamp displays yellow to indicate that the current point is in the test point; continuing to rotate the driving shaft 7, the protrusion 17 on the rotating surface of the status indicator block 13 moves away along with the gear transmission, the jack post 21 moves back to the contact of the travel switch 20, and the status indicator lamp displays green to indicate that the current point is at the connection point.
Therefore, the three-point connection state can be represented by observing the color state and the on-off state of the indicator lamp, namely the connection state of the control system test connector 3 and the system test interface, the connection state of the power transmission circuit connector 2 and the power transmission circuit interface and the complete disconnection state.
Further improvements in the provision of safety protection devices from a safety point of view:
the front end of the driving shaft 7 is provided with a key hole 23, so that the driving shaft 7 is screwed by a special key to control the three-point connection state conveniently and manually, the use safety of the device and the electricity safety of the device are improved, the danger of the device when being opened by others at will is avoided, the driving shaft 7 is screwed by the special key to be controlled manually, the use flexibility is high, and the use state can be mastered according to the requirement when the device is used again. The groove 14 of the status indication block 13 and the elastic member 15 are matched, so that the point of the three-point status can be found more conveniently.
According to the use characteristics of the electrical cabinet, the connection and control circuit are performed, so that a protection device is required to be arranged on the circuit, and a circuit break protector 24 for controlling the on-off of the circuit is arranged between the power transmission circuit connector 2 and the power transmission circuit interface. The molded case circuit breaker can automatically cut off the current after the current exceeds the trip setting. Plastic housing refers to the use of plastic insulators as the housing of the device to isolate the conductors from each other and from the grounded metal parts.
The key hole 23 is connected with a safety protection device, and the safety protection device is used for controlling the working state of the circuit breaking protector 24, so that the working state of the circuit breaking protector 24 is controlled by a knob switch 27 arranged below to achieve the communication of the circuit in the control device outside the shell 1, and the circuit breaking protector 24 locks the shell 1 in the electric cabinet in the on state and locks the key hole 23, so that the three-point state can be adjusted only after the circuit in the shell 1 is disconnected in consideration of safety.
The safety protection device has the specific structure that:
as shown in fig. 6 of the drawings, the safety protection device comprises a plectrum driving long shaft 25 and a plectrum switch 26; one end of the pulling piece driving long shaft 25 is connected with a knob switch 27, the knob switch 27 is arranged on a switch door 42 described below, and the pulling piece switch 26 is matched with a circuit protection switch of the circuit breaking protector 24; the driving long shaft 25 of the plectrum and the plectrum switch 26 realize transmission through a gear-rack transmission mechanism; the toggle knob switch 27 and the toggle piece driving long shaft 25 drive the toggle piece switch 26 to bidirectionally translate through a gear-rack transmission mechanism so as to control the opening and closing of the circuit protection switch; thereby achieving communication of the internal circuit of the control housing 1 from outside the housing 1.
The rack and pinion transmission mechanism described above by way of fig. 7 of the drawings of the specification includes a switch drive gear 46 and a slide groove body 40; the concrete structure is as follows: the tail end of the plectrum driving long shaft 25 is provided with a switch driving gear 46; the circuit breaking protector 24 is also provided with a bending mounting plate 47, the mounting plate is provided with a sliding groove plate 11, the sliding groove plate 11 is internally provided with a sliding groove body 40 in a matching way, the sliding groove body 40 is internally provided with a pulling piece switch 26, and the sliding groove body 40 is internally provided with a plurality of tooth holes 30; the tooth hole 30 is matched with a switch driving gear 46 arranged at the tail end of the driving long shaft, so that the sliding groove body 40 can slide in two directions under the action of the switch driving gear 46.
When the knob switch is shifted clockwise, the driving long shaft connected with the knob switch is driven to coaxially drive the switch driving gear 46 to rotate, gear teeth of the driving gear are meshed with the gear holes 30 arranged in the sliding groove body 40 to drive the sliding groove body 40 to slide in the sliding groove plate, and then the pulling piece switch 26 arranged on the sliding groove body 40 is driven to open the switch of the circuit breaking protector 24, so that the internal circuit of the device is communicated, the internal circuit of the device is controlled from the outside of the shell 1, and the safety performance of the device in use is further improved.
The locking device as a whole and locking key hole 23 when the communication circuit is reached in view of safety, further improves:
the whole concrete structure of locking device when the circuit is connected is: the rotary plectrum 28 is matched with the plectrum driving long shaft 25, the plectrum driving long shaft 25 rotates to drive the rotary plectrum 28 to rotate, the rotary plectrum 28 is provided with an arc sliding long hole 29, the rotary plectrum 28 is connected with a locking piece 31, and the locking piece 31 is limited and slides in the sliding long hole; when the pulling piece driving long shaft 25 drives the rotating pulling piece 28 to rotate clockwise, the working state of the circuit breaking protector 24 is opened, so that the circuit in the device is communicated, the top of the arc sliding long hole 29 of the rotating pulling piece 28 pushes the locking piece 31 downwards, and the bottom of the locking piece 31 penetrates through the bottom surface of the shell 1 and then is inserted into the locking groove 32 matched with the bottom surface of the electric cabinet groove 4 to realize locking. The rotary poking plate 28 is driven to rotate by taking the poking plate driving long shaft 25 as a power source, the arc-shaped sliding long hole 29 of the rotary poking plate 28 inserts the locking plate 31 into the locking groove 32 on the bottom surface of the electrical cabinet groove 4, the whole device is locked with the electrical cabinet groove 4, and the safety of the device is improved.
Further improving the structure:
in order to prevent the key hole 23 from being inserted into a key when the power is on, namely, the circuit breaking protector 24 works, if the electric leakage inside the circuit or the position factor of the fault lamp causes the electric shock of a worker, the specific improvement structure is as follows: as shown in fig. 5 and 7 of the drawings, the vertical plate 34 is provided with a first obtuse angle chute 35 and a bottom chute 36, the movable safety locking plate 33 is provided with a second obtuse angle chute 37 opposite to the first obtuse angle chute 35, the locking piece 31 is in limited relative sliding connection with the first obtuse angle chute 35 and the second obtuse angle chute 37 through short shafts, and the bottom of the movable safety locking plate 33 is also in limited sliding connection with the bottom chute 36 through short shafts. The movable safety locking plate 33 is also connected with an L-shaped sealing plate, a safety hole 41 is arranged on a transverse plate 16 of the L-shaped sealing plate, and the safety hole 41 is matched with a key hole 23 at the front end of the driving shaft 7; the bi-directional sliding displacement of the cross plate 16 of the L-shaped closure plate on the movable safety lock plate 33 controls the alignment of the safety hole 41 with the key hole 23 at the front end of the drive shaft 7.
Through the locking piece 31, the first short shaft 38 and the second short shaft 39 are separated into the first short shaft 38 and the second short shaft 39 according to the arrangement sequence, and the rotary pulling piece 28, the vertical plate 34 and the safety locking plate 33 can be connected through the connection of the attached chart 6 in the specification, so when the pulling piece drives the long shaft 25 to drive the rotary pulling piece 28 to rotate clockwise, the working state of the circuit breaking protector 24 is opened, the circuit in the device is communicated, the first short shaft 38 of the locking piece 31 slides in the sliding long hole of the rotary pulling piece 28 in a limited manner, the second short shaft 39 of the locking piece 31 slides in the first obtuse angle sliding groove 35 and the second obtuse angle sliding groove 37 in a limited manner, the short shaft of the safety locking piece 31 slides in the bottom sliding groove 36 of the vertical plate 34, the safety locking piece 31 and the L-shaped sealing plate are displaced, the position of the transverse plate 16 of the L-shaped sealing plate aligned with the key hole 23 is further displaced, the purpose of locking the key hole 23 is achieved, and the safety performance of the device is improved.
Other elements:
a computer system control element 22 is arranged in the shell 1 and is connected with a control system connector; the casing 1 is provided with a switch door 42, and the switch door 42 is provided with a handle 43 for facilitating drawing and pulling when the inside of the casing 1 fails, an indicator light 44 arranged on an indicator light circuit, an indicator light connected with the travel switch 20 and a display screen 45 connected with the computer system control element 22. The computer system control element 22 is arranged to debug and change the controlled circuit when the test point is located, and the computer system control element is matched with the display screen 45 of the computer system, so that the situation of the control circuit can be simply checked and the connection situation of the control circuit can be changed through keys arranged on the display screen 45.
The use method is as follows:
the device with the turn-button switch 27 in the closed state is integrally placed in the cabinet groove 4 of the electrical cabinet, all plugs at the separation point are not connected at the moment, so that the driving worm 5 of the stepping driving device is meshed with the worm stock strip 6, a special key is inserted into the key hole 23, the special key is rotated to enable the whole driving shaft 7 rotating device to move towards the interior of the cabinet groove 4, the computer system test joint 3 is connected with the system test interface, the indication disc 12 correspondingly reaches the test point, the push column and the poking piece are pushed by the protrusions 17 arranged on the state indication block 13 to enable the circuit in the travel switch 20 to be changed, and the yellow indication lamp is lightened; after the system line is debugged, the special key is continuously rotated to enable the device to continuously move into the electrical cabinet, the system test connector 3 is connected with the system test interface, the power transmission circuit connector 2 is connected with the power transmission circuit interface, the indication disc 12 correspondingly reaches a connection point position, the bulge 17 arranged on the state indication block 13 rotates, the pushing column retreats to change the circuit in the travel switch 20, and the green indication lamp is lightened to reach the connection point position.
In summary, the device is used as a unit power distribution control center of the electrical switch cabinet, and can ensure the electricity safety of operators. The circuit in the device achieves self-locking safety when being communicated, prevents the device from being pulled out or electrified, and ensures the electricity utilization safety in a working state; when the circuit in the device is communicated, the device cannot be moved and can be moved only after the power is off by a special key, so that the safety of the device is further improved, and electric shock caused by misoperation during electrification is prevented; the device can instruct the connection condition of computer system circuit and transmission circuit, can accurate instruction device current connection state and hookup point location, the staff of being convenient for uses the safety control device of having avoided traditional mode to be difficult to realize good control to the displacement between device whole and the cubical switchboard to different situations, and then can't realize accurate control to the connection condition of circuit, very easily causes the danger of electric shock.
Claims (7)
1. A be used for electrical switchgear safety test safety control device which characterized in that: comprises a shell (1) and a stepping driving device;
a circuit plugging device is arranged between the shell (1) and the electrical cabinet, and comprises a power transmission circuit connector (2) arranged on the shell (1), a system test connector (3), and a power transmission circuit interface and a system test interface which are arranged on the inner wall of the electrical cabinet groove (4) in a matching way;
the stepping driving device drives the shell (1) to realize stepping displacement relative to the electric cabinet groove (4); the stepping driving device is a worm and gear transmission mechanism, and the worm and gear transmission mechanism comprises a driving worm (5) arranged outside the shell (1) and a worm strip (6) fixedly arranged in the electric cabinet groove (4) and matched with the driving worm (5); three-point two-section stepping displacement is realized between the driving worm (5) and the worm bus bar (6) through rotation;
the connection of the system test connector (3) and the system test interface and the connection of the power transmission circuit connector (2) and the power transmission circuit interface are sequentially and respectively controlled by controlling the moving distance of the stepping displacement, the driving worm (5) is connected to the driving shaft (7), and the driving shaft (7) is arranged in the mounting groove body (18) on the bottom surface of the shell (1); the front end of the driving shaft (7) is provided with a key hole (23), and the driving shaft (7) is screwed by a special key to control the three-point connection state; a circuit breaking protector (24) for controlling the on-off of a circuit is arranged between the power transmission circuit connector (2) and the power transmission circuit interface; the key hole (23) is connected with a safety protection device, the safety protection device controls the working state of the circuit breaking protector (24), and the circuit breaking protector (24) locks the shell (1) in the electric cabinet and locks the key hole (23) at the same time in the on state;
the safety protection device comprises a plectrum driving long shaft (25) and a plectrum switch (26); one end of the pulling piece driving long shaft (25) is connected with a knob switch (27), and the pulling piece switch (26) is matched with a circuit protection switch of the circuit breaking protector (24); the driving long shaft (25) of the plectrum and the plectrum switch (26) are driven by a gear-rack transmission mechanism; the toggle knob switch (27) and the toggle piece driving long shaft (25) drive the toggle piece switch (26) to bidirectionally translate through a gear-rack transmission mechanism so as to control the opening and closing of the circuit protection switch; the rotary poking piece driving long shaft (25) is provided with a rotary poking piece (28) in a matched mode, the rotary poking piece driving long shaft (25) rotates to drive the rotary poking piece (28) to rotate, the rotary poking piece (28) is provided with an arc-shaped sliding long hole (29), the rotary poking piece (28) is connected with a locking piece (31), and the locking piece (31) is limited and slides in the sliding long hole; when the poking piece driving long shaft (25) drives the rotating poking piece (28) to rotate, the top of the arc sliding long hole (29) of the rotating poking piece (28) pushes the locking piece (31) to move downwards, and the bottom of the locking piece (31) penetrates through the bottom surface of the shell (1) and then is inserted into the locking groove (32) matched with the bottom surface of the electrical cabinet groove (4) to realize locking;
the safety protection device also comprises a movable safety locking plate (33) and a vertical plate (34); the vertical plate (34) is provided with a first obtuse angle chute (35) and a bottom chute (36), the movable safety locking plate (33) is provided with a second obtuse angle chute (37) opposite to the first obtuse angle chute (35), the locking piece (31) is in limit relative sliding connection with the first obtuse angle chute (35) and the second obtuse angle chute (37) through short shafts, and the bottom of the movable safety locking plate (33) is also in limit sliding connection with the bottom chute (36) through short shafts; the movable safety locking plate (33) is also connected with an L-shaped sealing plate, a safety hole (41) is formed in a transverse plate (16) of the L-shaped sealing plate, and the safety hole (41) is matched with a key hole (23) at the front end of the driving shaft (7); the two-way sliding displacement of the transverse plate (16) of the L-shaped sealing plate on the movable safety locking plate (33) controls the alignment state of the safety hole (41) and the key hole (23) at the front end of the driving shaft (7).
2. A safety control device for safety tests of electrical switch cabinets according to claim 1, characterized in that: the stepping driving device adopts a three-point two-section stepping displacement mode, and the connection state of the system test connector (3) and the system test interface, the connection state of the power transmission circuit connector (2) and the power transmission circuit interface and the complete disconnection state are controlled through the difference of the displacement distances of the three-point two-section stepping displacement.
3. A safety control device for safety tests of electrical switch cabinets according to claim 2, characterized in that: the driving worm (5) is arranged on the bottom surface of the shell (1), the worm stock (6) is correspondingly arranged on the bottom surface of the electric cabinet groove (4), and the stepping driving device is matched with the state indicating device; the state indicating means indicates different connection states by driving the rotational position of the worm.
4. A safety control device for safety tests of electrical switch cabinets according to claim 3, characterized in that: the rotating shaft of the state indicating device is in transmission with the driving shaft (7) in a gear transmission mode, and the state indicating device is driven to rotate through the gear transmission mechanism by rotating the driving shaft (7), so that the state indicating device displays a three-point connection state to indicate the connection state of the control system test connector (3) and the system test interface, the connection state of the power transmission circuit connector (2) and the power transmission circuit interface and a complete disconnection state;
the gear transmission mechanism comprises a driving gear (8), a duplex gear (9) and a driven gear (10); the driving gear (8) is coaxially arranged on the driving shaft (7), the driven gear (10) is coaxially arranged with the state indicating device, and the duplex gear (9) is respectively meshed with the driving gear (8) and the driven gear (10); the driven gear (10) limits the rotation angle for the residual gear, the state indicating device comprises an indicating disc (12), a state indicating block (13) is arranged on the tooth surface of the driven gear (10), a groove (14) which is suitable for the three-point connection state is arranged on the state indicating block (13), and an elastic piece (15) which is matched with the groove (14) is arranged on the mounting groove body (18);
when the driving gear (8) drives the driven gear (10) to rotate through the duplex gear (9), the groove (14) is in contact with the port of the elastic piece (15), and the elastic piece (15) enters the groove (14) to limit, so that the corresponding state mark on the indicating disc (12) displays the corresponding connection state indicating point.
5. The safety control device for safety test of electrical switch cabinet according to claim 4, wherein: the inner surface of the state indicating block (13) is provided with a bulge (17), the mounting groove body (18) is provided with an elastic sheet (19), a travel switch (20) and an indicator light circuit, the tail end of the elastic sheet (19) is provided with a jack post (21) which is matched with the bulge (17), and the beginning and the tail end of the travel switch (20) are respectively correspondingly connected with two indicator light circuits with different colors;
when the protrusion (17) on the surface of the state indicating block (13) is contacted with the jack post (21) to push the jack post (21), the elastic sheet (19) pushes the travel switch (20) to displace, so that the connection state of the different-color indicating lamp circuits is changed, and the three-point connection state is represented by observing the color state and the on-off state of the indicating lamp, namely, the connection state of the control system test connector (3) and the system test connector, the connection state of the power transmission circuit connector (2) and the power transmission circuit connector and the complete disconnection state.
6. The safety control device for safety test of electrical switch cabinet according to claim 5, wherein: the shell (1) is internally provided with a computer system control element (22), and the computer system control element is connected with a control system joint.
7. A safety control device for safety tests of electrical switch cabinets according to claim 1, characterized in that: the shell (1) is provided with a switch door (42), and the switch door (42) is provided with a handle (43), an indication display lamp (44) arranged on an indication lamp circuit and a display screen (45) connected with a computer system control element (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111414531.1A CN114122931B (en) | 2021-11-25 | 2021-11-25 | Safety control device for safety test of electrical switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111414531.1A CN114122931B (en) | 2021-11-25 | 2021-11-25 | Safety control device for safety test of electrical switch cabinet |
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| CN114122931A CN114122931A (en) | 2022-03-01 |
| CN114122931B true CN114122931B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003111218A (en) * | 2001-09-28 | 2003-04-11 | Terasaki Electric Co Ltd | Control center |
| KR100841528B1 (en) * | 2007-02-28 | 2008-06-25 | 한국원자력연구원 | Angular position detector using planetary gear and circumferential arranged reed switches and detecting method of control rod position using thereof |
| CN202167780U (en) * | 2011-08-22 | 2012-03-14 | 新疆昆仑电气有限公司 | Interlocking device for grounding switch operating mechanism of switch cabinet |
| CN109473871A (en) * | 2018-04-09 | 2019-03-15 | 国家电网公司 | A kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device and method |
| CN212304448U (en) * | 2020-04-08 | 2021-01-05 | 浙江裕欣电力科技有限公司 | High low-voltage cabinet hand power for drawer switch interlocking device of security |
| CN212516960U (en) * | 2020-07-22 | 2021-02-09 | 山西德力西电器有限公司 | Emergency brake separating device of switch cabinet |
-
2021
- 2021-11-25 CN CN202111414531.1A patent/CN114122931B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003111218A (en) * | 2001-09-28 | 2003-04-11 | Terasaki Electric Co Ltd | Control center |
| KR100841528B1 (en) * | 2007-02-28 | 2008-06-25 | 한국원자력연구원 | Angular position detector using planetary gear and circumferential arranged reed switches and detecting method of control rod position using thereof |
| CN202167780U (en) * | 2011-08-22 | 2012-03-14 | 新疆昆仑电气有限公司 | Interlocking device for grounding switch operating mechanism of switch cabinet |
| CN109473871A (en) * | 2018-04-09 | 2019-03-15 | 国家电网公司 | A kind of high-tension switch cabinet earthing switch blade computer anti-misoperation and lockout device and method |
| CN212304448U (en) * | 2020-04-08 | 2021-01-05 | 浙江裕欣电力科技有限公司 | High low-voltage cabinet hand power for drawer switch interlocking device of security |
| CN212516960U (en) * | 2020-07-22 | 2021-02-09 | 山西德力西电器有限公司 | Emergency brake separating device of switch cabinet |
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|---|---|
| CN114122931A (en) | 2022-03-01 |
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