CN112582200B - Misoperation prevention monopole grounding disconnecting link - Google Patents
Misoperation prevention monopole grounding disconnecting link Download PDFInfo
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- CN112582200B CN112582200B CN202011239776.0A CN202011239776A CN112582200B CN 112582200 B CN112582200 B CN 112582200B CN 202011239776 A CN202011239776 A CN 202011239776A CN 112582200 B CN112582200 B CN 112582200B
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- locking device
- conductor
- travel switch
- blade body
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
Abstract
The invention provides an misoperation-preventing monopole grounding disconnecting link, which belongs to the technical field of grounding disconnecting links, and comprises a fixed contact and a conductor, wherein the fixed contact and the conductor are arranged on a base, and a moving contact blade body is rotatably connected to the conductor; a locking device is rotatably arranged at the top of the conductor, and a ratchet wheel is arranged at one end, close to the locking device, of the moving contact blade body; when the locking device rotates to the locking position, the matched ratchet wheel blocks the moving contact blade body from rotating towards the direction of the fixed contact; when the locking device rotates to the opening and closing position, the ratchet wheel is not blocked by the locking device, and the moving contact blade body can rotate towards the direction of the fixed contact; and a knife switch state monitoring device is further arranged at the top of the conductor and is used for monitoring the position state of the movable contact knife body of the position state of the locking device. The invention ensures that operators can always keep a safe distance from a line which is inexperienced in electricity and is provided with a grounding wire on the pole tower; the time for installing the grounding wire and removing the safety device is saved, the working efficiency is improved, and the problems of power failure maintenance start time and late power transmission time after power failure maintenance are solved.
Description
Technical Field
The invention relates to the technical field of distribution line grounding disconnecting switches, in particular to an misoperation-preventing monopole grounding disconnecting switch.
Background
With the rapid development of social economy, the requirements on the power supply reliability of the power distribution network lines are higher and higher. Therefore, the distribution overhead line is developed into a complex multi-circuit line erected on the same tower from a simple single-circuit line, and the original bare conductor line is changed into a fully insulated line, so that a new challenge is brought to the safety of line power failure overhaul work.
At present, the conventional portable three-phase short-circuit grounding wire is still adopted for line power failure maintenance, and the personal safety of operators and the operation safety of a power grid can not be completely ensured in the use process. The hidden trouble exists as follows:
firstly, when 10 kilovolt multi-circuit lines are erected on the same tower and overhauled in a power failure, operators cannot always keep the minimum safety distance when using the portable three-phase short-circuit grounding wire to test electricity on the tower and make safety measures, and if a return power supply is available, personnel electric shock danger easily occurs; secondly, the portable three-phase short-circuit grounding wire is made of copper, the length is about 15-20 m, the weight is about 10kG, the carrying and the transportation are inconvenient, when the number required by maintenance work is large, operators can frequently move up and down on the pole tower by carrying the grounding wire, the time is long, the operation intensity is high, and the danger of high-altitude falling of the operators is easy to occur; thirdly, safety measures (position change) real-time information mastered by regulation and control on the overhead line with power failure cannot be exchanged with a regulation and control background man-machine, and if the line is in a blind regulation state, line power transmission is carried out when one grounding wire is leaked from the line, and a line tripping accident can be caused.
Disclosure of Invention
The invention aims to provide the misoperation-preventing monopole grounding disconnecting link which is suitable for a multi-loop overhead line, is convenient and quick to operate, ensures the safety of operators and improves the working efficiency, so as to solve at least one technical problem in the background technology.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides an misoperation prevention monopole grounding disconnecting link, which comprises the following components:
the device comprises a base, wherein one end of the base is provided with an insulator, and the other end of the base is provided with a conductor;
the insulator is connected with a fixed contact, and the conductor is rotatably connected with a moving contact cutter body;
a locking device is rotatably arranged at the top of the conductor, and a ratchet wheel is arranged at one end, close to the locking device, of the moving contact blade body; when the locking device rotates to a locking position, the matched ratchet wheel blocks the moving contact blade body from rotating towards the direction of the fixed contact; when the locking device rotates to an opening and closing position, the ratchet wheel is not blocked by the locking device, and the moving contact blade body can rotate towards the direction of the fixed contact;
and a disconnecting link state monitoring device is further arranged at the top of the conductor and used for monitoring the position state of the locking device and the position state of the moving contact blade body.
Preferably, the locking device comprises a rotating column, the rotating column is movably inserted on a rotating shaft, and the rotating shaft is vertically fixed on the upper surface of the conductor; the radial end face of the rotary column is provided with an axial slot, and the axial end face of the rotary column is provided with an inserting hole.
Preferably, the knife switch state monitoring device comprises a first travel switch and a second travel switch;
when the movable contact blade body is connected with the fixed contact, the first travel switch is in a trigger state, the first monitoring circuit is conducted, a first electric signal is generated, and the first electric signal is sent to the distribution network automation platform monitoring system through the intelligent terminal communication box;
when the locking device is at the locking position, the second travel switch is in a triggering state, the second monitoring circuit is conducted, a second electric signal is generated, and the second electric signal is sent to the distribution network automation platform monitoring system through the intelligent terminal communication box.
Preferably, the first travel switch is arranged at the top of the shell, the shell is arranged at the top of the conductor, the first travel switch is a spring button, the first monitoring circuit is arranged inside the shell and comprises a first contact and a second contact, the first contact is arranged at the bottom of the first travel switch, after the first travel switch is compressed by the moving contact blade body, the first contact is connected with the second contact, the second contact is electrically connected with a wiring terminal inside the shell, and the wiring terminal is connected with the intelligent terminal communication box.
Preferably, the second travel switch is arranged on the side surface of the shell facing the locking device, the second travel switch is a spring button, the second monitoring circuit is arranged in the shell and comprises a third contact and a fourth contact, the third contact is arranged at the bottom of the second travel switch, after the second travel switch is compressed by the locking device, the third contact is connected with the fourth contact, and the fourth contact is electrically connected with the wiring terminal.
Preferably, the fixed contact is connected with a connecting pressing plate; the movable contact blade body is provided with a pull ring, and is connected with the conductor through a connecting wire.
Preferably, the device further comprises an auxiliary insulating operation rod, wherein an unlocking disc is arranged at one end of the auxiliary insulating operation rod, and an unlocking rod capable of being inserted into the jack is vertically connected to the unlocking disc.
Preferably, the auxiliary insulating operation rod comprises a first connecting rod, a second connecting rod and an intermediate connecting rod;
one end of the first connecting rod is provided with a handle, and the other end of the first connecting rod is provided with a butt joint;
one end of the middle connecting rod is provided with a butt joint groove, and the other end of the middle connecting rod is provided with a butt joint head;
one end of the second connecting rod is provided with a butt joint groove, and the other end of the second connecting rod is provided with the unlocking disc.
Preferably, the second connecting rod is further provided with an electricity checking device, and the electricity checking device is electrically connected with the unlocking disc.
Preferably, the electricity testing device is an electricity testing pen.
The invention has the beneficial effects that: the safe distance between an operator and a line which is provided with an inexperienced power line and a ground wire on the tower can be always kept; the insulating pull rod can be easily operated, so that the safety, time and labor are saved, and the danger of high-altitude falling caused by frequent up-and-down movement of operators on the tower is avoided; the time for installing the grounding wire and removing the safety device is saved, the working efficiency is improved, and the problems of power failure maintenance start time and late power transmission time after power failure maintenance are solved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a diagram of a structure of a misoperation prevention monopole grounding switch according to an embodiment of the present invention.
Fig. 2 is a top view of a locking device of a single-pole grounding switch for preventing misoperation according to an embodiment of the present invention.
Fig. 3 is a structural diagram of an auxiliary insulating operation rod of an anti-misoperation monopole grounding knife switch according to an embodiment of the invention.
Fig. 4 is a functional block diagram of a knife switch state monitoring device for preventing misoperation of a monopole grounding knife switch according to an embodiment of the invention.
Wherein: 1-a base; 2-insulators; 3-conductors; 4-a fixed contact; 5-moving contact blade body; 6-ratchet wheel; 7-a locked position; 8-a knife switch state monitoring device; 9-spin columns; 10-axially slotting; 11-jacks; 12-a first travel switch; 13-a second travel switch; 14-an intelligent terminal communication box; 15-a distribution network automation platform monitoring system; 16-a housing; 17-a first contact; 18-a second contact; 19-a wiring terminal; 20-third contacts; 21-fourth contacts; 22-connecting a pressing plate; 23-pull ring; 24-connecting wires; 25-unlocking the disc; 26-unlocking the rod; 27-a first connecting rod; 28-a second connecting rod; 29-an intermediate connecting rod; 30-handle; 31-butt joint; 32-a butt joint groove; 33-an electricity testing device; 34-open and closed position.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by way of the drawings are exemplary only and should not be construed as limiting the invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, and/or groups thereof.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
In the description of this specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present specification, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present technology.
The terms "mounted," "connected," and "disposed" are to be construed broadly, and may be, for example, fixedly connected, disposed, detachably connected, or integrally connected, disposed, unless otherwise specifically defined and limited. The specific meaning of the above terms in the present technology can be understood by those of ordinary skill in the art according to the specific circumstances.
In order that the invention may be readily understood, a further description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings and are not to be construed as limiting embodiments of the invention.
It will be appreciated by those skilled in the art that the drawings are merely schematic representations of examples and that the elements of the drawings are not necessarily required to practice the invention.
Examples
As shown in fig. 1, this embodiment provides an anti-misoperation monopole grounding knife switch, which includes:
the device comprises a base 1, wherein an insulator 2 is arranged at one end of the base 1, and a conductor 3 is arranged at the other end of the base 1; the insulator 2 is connected with a fixed contact 4, and the conductor 3 is rotatably connected with a moving contact blade body 5.
A locking device is rotatably arranged at the top of the conductor 3, and a ratchet wheel 6 is arranged at one end, close to the locking device, of the moving contact blade body; when the locking device rotates to a locking position 7, the matching ratchet 6 stops the moving contact blade 5 from rotating towards the direction of the fixed contact 4; when the locking device rotates to the opening and closing position 34, the ratchet 6 is not blocked by the locking device, and the moving contact blade 5 can rotate towards the direction of the fixed contact 4.
A knife switch state monitoring device 8 is further arranged on the top of the conductor 3 and is used for monitoring the position state of the locking device and the position state of the moving contact knife body 5.
As shown in fig. 2, the locking device comprises a rotating column 9, wherein the rotating column 9 is movably inserted on a rotating shaft, and the rotating shaft is vertically fixed on the upper surface of the conductor 3; an axial slot 10 is formed in the radial end face of the rotary column 9, and an insertion hole 11 is formed in the axial end face of the rotary column 9.
When the monopole earthing knife-switch in this embodiment is used, the monopole earthing knife-switch device is reversely installed on the cross arm at the proper position (the head and the tail of the line) of the overhead line, 1 three-phase wires are respectively installed, the fixed contact 4 is connected with the live wire through the connecting pressing plate 22, and the moving contact knife-body 5 is connected with the earthing device of the metal conductor 3 through the connecting wire 24 (namely soft connecting copper wires) (the current-carrying capacity of the earthing current is increased).
When the line is in live operation, an operator pulls the movable contact blade body 5 away through the pull ring 23 and is perpendicular to the disconnecting link base by about 90 degrees, and rotates the locking device to the locking position 7. As shown in fig. 2, the locking position corresponds to a position where the axial slot 10 is not formed in the rotating column 9, and since the axial slot 10 is not formed in the locking position 7, the rotating column 9 can block the ratchet 6 from rotating to the right side, so that the other end of the moving contact blade 5 is blocked from rotating towards the direction of the fixed contact, the connection of the moving contact and the fixed contact blade is avoided, the reliable operation of a live line is ensured, and the safety is ensured.
When the line is serviced by a power outage, the latch is rotated to the open and closed position 34. As shown in fig. 2, the opening and closing position 34 corresponds to a position where the axial slot 10 is provided on the rotary column 9, and since the opening and closing position is provided with the axial slot 10, the axial slot 10 provides a space for the ratchet 6 to rotate to the right side, the left end of the moving contact blade body can rotate downwards, an operator can bring the moving contact blade body into full contact with the fixed contact, and then the mechanical locking device 7 is rotated to the locking position, so that the safety of maintenance personnel of a power failure line is ensured, and all the operations are operated by using a special operating rod with an electricity checking function.
As shown in fig. 4, the knife switch state monitoring device 8 includes a first travel switch 12 and a second travel switch 13; when the moving contact blade 5 is connected with the fixed contact 4, the first travel switch 12 is in a trigger state, the first monitoring circuit is turned on, a first electric signal is generated, and the first electric signal is sent to the distribution network automation platform monitoring system 15 through the intelligent terminal communication box 14.
When the locking device is at the locking position 7, the second travel switch 13 is in a triggering state, the second monitoring circuit is conducted, a second electric signal is generated, and the second electric signal is sent to the distribution network automation platform monitoring system 15 through the intelligent terminal communication box 14.
Specifically, the first travel switch 12 is disposed at the top of the housing 16, the housing 16 is disposed at the top of the conductor 3, the first travel switch 12 is a spring button, the first monitoring circuit is disposed inside the housing 16, the first monitoring circuit includes a first contact 17 and a second contact 18, the first contact 17 is disposed at the bottom of the first travel switch 12, when the first travel switch 12 is compressed by the moving contact blade 5, the first contact 17 is connected with the second contact 18, the second contact 18 is electrically connected with a connection terminal 19 inside the housing, and the connection terminal 19 is connected with the intelligent terminal communication box 14.
The second travel switch 13 is arranged on the side surface of the shell 16, which faces the locking device, the second travel switch 13 is a spring button, the second monitoring circuit is arranged inside the shell and comprises a third contact 20 and a fourth contact 21, the third contact 20 is arranged at the bottom of the second travel switch 13, after the second travel switch 13 is compressed by the locking device, the third contact 20 is connected with the fourth contact 21, and the fourth contact 21 is electrically connected with the wiring terminal 19.
The misoperation-preventing monopole grounding disconnecting link further comprises an auxiliary insulating operating rod, and the switching between the locking position and the opening position on the locking device can be completed by using the auxiliary insulating operating rod.
As shown in fig. 3, an unlocking disc 25 is provided at one end of the auxiliary insulating operation rod, and an unlocking rod 26 that can be inserted into the insertion hole 11 is vertically connected to the unlocking disc 25. When the locking position and the opening position are switched, an operator inserts the unlocking bar 26 into the jack 11, for example, the jack 11 may be in a hexagonal prism shape, and the corresponding unlocking bar 26 is matched with the jack 11 and also in a hexagonal prism shape. The operator rotates the auxiliary insulating operating rod to drive the unlocking disc 25 to rotate, the unlocking rod 26 is driven to rotate by the rotation of the unlocking disc 25, and the unlocking rod 26 rotates to drive the rotation of the rotary column 9 through the cooperation of the jack 11, so that position switching is realized.
The auxiliary insulating operation rod comprises a first connecting rod 27, a second connecting rod 28 and an intermediate connecting rod 29; a handle 30 is arranged at one end of the first connecting rod 27, and a butt joint 31 is arranged at the other end of the first connecting rod 27; one end of the intermediate connecting rod 29 is provided with a butt joint groove 32, and the other end of the intermediate connecting rod 29 is provided with a butt joint 31. One end of the second connecting rod 28 is provided with a docking slot 32, and the other end of the second connecting rod 28 is provided with the unlocking disc 25.
In the present embodiment, the butt joint 31 of the first connecting rod 27 is inserted into the butt joint groove 32 of the intermediate connecting rod 29, and the butt joint 31 of the intermediate connecting rod 29 is inserted into the butt joint groove of the second connecting rod 28, so that the whole assembly work of the auxiliary insulating operation rod can be completed.
In a specific application, a plurality of intermediate connecting rods 29 can be provided, and the auxiliary insulating operating rods can have different lengths through the cooperation of the butt joint and the butt joint groove. The number of the intermediate connecting rods 29 can be specifically selected by a person skilled in the art according to practical situations, so as to assemble auxiliary insulating operation rods with proper length, and operation is convenient.
The second connecting rod 28 is further provided with an electricity checking device 33, and the electricity checking device 33 is electrically connected with the unlocking disc 25. The unlocking bar 26 and the unlocking disk 25 are both electric conductors, and when the locking device is electrified after the unlocking bar 26 is inserted into the insertion hole 11, the unlocking bar can be checked out by the electric checking device 33. The electroscope 33 may be an electroscope.
In summary, the monopolar grounding knife switch with the misoperation prevention device is installed on the multicircuit line erected on the same tower, and operators can always keep a safety distance of more than 1.5 meters from an inexperienced electric line and a line provided with a grounding wire on the tower. Compared with the traditional line safety measures, the portable short-circuit grounding wire is smaller than the minimum required safety distance of 0.7, and the electric shock danger of personnel is solved.
The monopole grounding disconnecting link with the misoperation prevention device can be easily operated by using the insulation pull rod, and is safe, time-saving and labor-saving, and compared with the traditional line safety measure, the portable three-phase short-circuit grounding wire is made of copper, has the length of about 15-20 meters and the weight of about 10kG. Operators frequently move up and down on the pole tower, the operation intensity is high when the time is long, and the danger that the operators fall aloft is solved.
If a monopole grounding disconnecting link with an anti-misoperation device is adopted, 8 groups of grounding disconnecting links should be operated, and one group of disconnecting links needs 2 minutes and about 20 minutes to operate; the portable three-phase short-circuit grounding wire adopts the traditional circuit safety measures to also carry out the circuit safety measures on the two ends of the four circuits, and 8 grounding wires are needed. A set of time is set up for about 10 minutes and 8 ground wire sets up for about 80 minutes. The monopole grounding disconnecting link with the misoperation prevention device saves about 60 minutes compared with the traditional line safety measure portable three-phase short-circuit grounding wire, and 60 minutes can be saved when the safety measure is dismantled after the work is finished, so that the problems of power failure, overhauling and starting time and later time for completing power transmission are solved.
The anti-misoperation monopole earthing knife-switch described in this embodiment is used, for example, average one line load is calculated according to 5MW, and about 20MW for four line loads. The work is carried out for 120 minutes (60 x 2) in advance, the power supply quantity is 40000kW.h, and the economic benefit of 25000 yuan can be increased according to the calculation of the average power price of 0.625 yuan/degree (the life lighting power price of 0.547 yuan/degree and the general industrial and commercial power price of 0.702 yuan/degree). The economic benefit generated by only one power failure work is very considerable, for example, the power failure work is detected for a plurality of times in spring and autumn. The monopole grounding disconnecting link with the misoperation prevention device is adopted on the distribution network line, so that the occurrence of personal electric shock and falling prevention accidents is effectively solved. If an economic loss of personal casualties happens once, the economic loss is huge, and a certain social negative influence is brought to be an immeasurable loss.
The foregoing description of the preferred embodiments of the present disclosure is provided only and not intended to limit the disclosure so that various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
While the foregoing embodiments of the present disclosure have been described in conjunction with the accompanying drawings, it is not intended to limit the scope of the disclosure, and it should be understood that, based on the technical solutions disclosed in the present disclosure, various modifications or variations may be made by those skilled in the art without requiring any inventive effort, and are intended to be included in the scope of the present disclosure.
Claims (8)
1. An anti-misoperation monopole grounding knife switch is characterized by comprising:
the device comprises a base (1), wherein one end of the base (1) is provided with an insulator (2), and the other end of the base (1) is provided with a conductor (3);
the insulator (2) is connected with a fixed contact (4), and the conductor (3) is rotatably connected with a moving contact blade body (5);
a locking device is rotatably arranged at the top of the conductor (3), and a ratchet wheel (6) is arranged at one end, close to the locking device, of the moving contact blade body; when the locking device rotates to a locking position (7), the matching ratchet wheel (6) blocks the moving contact blade body (5) from rotating towards the direction of the fixed contact (4); when the locking device rotates to an opening and closing position (34), the ratchet wheel (6) is not blocked by the locking device, and the moving contact blade body (5) can rotate towards the direction of the fixed contact (4);
the locking device comprises a rotating column (9), the rotating column (9) is movably inserted into a rotating shaft, and the rotating shaft is vertically fixed on the upper surface of the conductor (3); an axial slot (10) is formed in the radial end face of the rotary column (9), and an inserting hole (11) is formed in the axial end face of the rotary column (9);
a disconnecting link state monitoring device (8) is further arranged at the top of the conductor (3) and used for monitoring the position state of the locking device and the position state of the moving contact blade body (5);
the disconnecting link state monitoring device (8) comprises a first travel switch (12) and a second travel switch (13);
when the movable contact blade body (5) is connected with the fixed contact (4), the first travel switch (12) is in a trigger state, the first monitoring circuit is conducted, a first electric signal is generated, and the first electric signal is sent to the distribution network automation platform monitoring system (15) through the intelligent terminal communication box (14);
when the locking device is at the locking position (7), the second travel switch (13) is in a trigger state, the second monitoring circuit is conducted, a second electric signal is generated, and the second electric signal is sent to the distribution network automation platform monitoring system (15) through the intelligent terminal communication box (14).
2. The anti-misoperation monopole earthing knife-switch as claimed in claim 1, wherein:
the utility model discloses a smart terminal communication box, including shell (3), shell (16), first travel switch (12) are located the top of shell (16), shell (16) are located to first travel switch (16), first monitoring circuit is inside, first monitoring circuit includes first contact (17) and second contact (18), first contact (17) are located the bottom of first travel switch (12), works as first travel switch (12) by after moving contact cutter body (5) compress, first contact (17) with second contact (18) are connected, binding post (19) inside shell are connected to second contact (18) electricity, binding post (19) are connected smart terminal communication box (14).
3. The anti-misoperation monopole earthing knife-switch as claimed in claim 2, wherein:
the second travel switch (13) is arranged on the side face of the shell (16) facing the locking device, the second travel switch (13) is a spring button, the second monitoring circuit is arranged inside the shell and comprises a third contact (20) and a fourth contact (21), the third contact (20) is arranged at the bottom of the second travel switch (13), after the second travel switch (13) is compressed by the locking device, the third contact (20) is connected with the fourth contact (21), and the fourth contact (21) is electrically connected with the wiring terminal (19).
4. The anti-misoperation monopole earthing knife-switch as claimed in claim 1, wherein:
the fixed contact (4) is connected with a connecting pressing plate (22); the movable contact blade body (5) is provided with a pull ring (23), and the movable contact blade body (5) is connected with the conductor (3) through a connecting wire (24).
5. The anti-misoperation monopole earthing knife-switch as claimed in claim 1, wherein:
the electric power socket further comprises an auxiliary insulating operation rod, an unlocking disc (25) is arranged at one end of the auxiliary insulating operation rod, and an unlocking rod (26) capable of being inserted into the jack (11) is vertically connected to the unlocking disc (25).
6. The anti-misoperation monopole earthing knife-switch as claimed in claim 5, wherein:
the auxiliary insulating operation rod comprises a first connecting rod (27), a second connecting rod (28) and an intermediate connecting rod (29);
one end of the first connecting rod (27) is provided with a handle (30), and the other end of the first connecting rod (27) is provided with a butt joint (31);
one end of the middle connecting rod (29) is provided with a butt joint groove (32), and the other end of the middle connecting rod (29) is provided with a butt joint head (31);
one end of the second connecting rod (28) is provided with a butt joint groove (32), and the other end of the second connecting rod (28) is provided with the unlocking disc (25).
7. The anti-misoperation monopole earthing knife-switch as claimed in claim 6, wherein: and the second connecting rod (28) is also provided with an electricity checking device (33), and the electricity checking device (33) is electrically connected with the unlocking disc (25).
8. The anti-misoperation monopole earthing knife-switch as claimed in claim 7, wherein: the electricity testing device (33) is an electricity testing pen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011239776.0A CN112582200B (en) | 2020-11-09 | 2020-11-09 | Misoperation prevention monopole grounding disconnecting link |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011239776.0A CN112582200B (en) | 2020-11-09 | 2020-11-09 | Misoperation prevention monopole grounding disconnecting link |
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| Publication Number | Publication Date |
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| CN112582200A CN112582200A (en) | 2021-03-30 |
| CN112582200B true CN112582200B (en) | 2023-08-15 |
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| CN112582200A (en) | 2021-03-30 |
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