CN215069866U - Portable bypass device for quickly replacing RTO (remote terminal operation) insurance - Google Patents

Abstract

The utility model discloses a portable bypass device for quick replacement RTO insurance, include: the device comprises a hard insulating plate, a conductive copper plate, a clamping rail, a three-phase air circuit breaker, a distribution line, a power connection bolt, a extension rod and a clamping rod bolt; the upper end and the lower end of the hard insulating plate are respectively provided with a conductive copper plate, a clamping rail with a horizontal structure is fixed at the horizontal center line of the front end surface of the hard insulating plate, a three-phase air circuit breaker is clamped on the clamping rail, three groups of circuit breaking channels are arranged on the three-phase air circuit breaker in total, each group of circuit breaking channels are connected with the electric connecting bolts at the upper end and the lower end of the hard insulating plate through distribution wires, and the conductive copper plates are electrically connected with extension rods with conductivity; the utility model has the advantages that: effectively avoided the electric arc risk of load change RTO insurance core, can let the user accomplish the maintenance operation that RTO insurance core was changed under the condition of no perception power failure completely, can not lose the power consumption safety when conveniently overhauing yet.

Description

Portable bypass device for quickly replacing RTO (remote terminal operation) insurance

Technical Field

The utility model relates to the electric power tech field specifically is a portable bypass device for quick replacement RTO insurance.

Background

RTO insurance is also known as: the RTO fuse or the sealed tube fuse with the filler mainly comprises a tube body, an indicator, quartz sand filler and a melt; the tube body is made of talcum ceramics, the outer surface of the tube body is made into a wave shape, the heat dissipation area of the surface is increased, the tube body is attractive, and the two ends of the inner circle of the tube body are respectively provided with four screw holes so that the cover plate can be conveniently arranged on the tube body through screws. The upper cover is provided with an obvious red indicator for indicating the fusing working condition, and the indicator is bounced when fused; punching a mesh by using a thin red copper sheet, enclosing the mesh into a cage shape, welding pure tin in the middle, and welding two end points of the melt on a metal plate to ensure that the melt is well contacted with the conductive slotting tool; the tube is filled with specially treated quartz sand for cooling and extinguishing electric arc; but current RTO insurance is when overhauing and changing, when the RTO insurance leaves RTO insurance base, there is great electric arc to produce, so the maintenance of RTO insurance is changed dangerously higher, simultaneously when the maintenance of current RTO insurance is changed, generally all need break the circuit and handle, directly influence the power consumption of receiving the crowd and experience, and also have great electric arc production the same maintenance that also can influence the RTO insurance and change the security when the RTO insurance after breaking is installed again, so prior art needs one kind can accomplish the maintenance operation that the RTO insurance core was changed and effectively avoid taking the load to change the electric arc risk of RTO insurance core and still do not lose the portable bypass device of power consumption security under the condition of power failure completely of user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable bypass device for quick replacement RTO insurance to solve the problem mentioned in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a portable bypass device for quick change RTO fuse, comprising: the device comprises a hard insulating plate, a conductive copper plate, a clamping rail, a three-phase air circuit breaker, a distribution line, a power plug, a extension rod, a clamping rod plug, a safety base, an RTO safety core, a power plug-in post and a power plug-out post; the safety base is a base used for clamping an RTO safety core, metal clamping structures used for clamping two ends of the RTO safety core are arranged at two ends of the safety base, and the metal clamping structures at the two ends of the safety base and the RTO safety core clamped by the metal clamping structures form a circuit path; the metal clamping structure at one end of the safety base is provided with an incoming bolt column for externally receiving an incoming potential, and the metal clamping structure at the other end of the safety base is provided with an outgoing bolt column for externally receiving a potential; the electricity inlet bolt column and the electricity outlet bolt column are threaded bolts of the same type; the hard insulating plate is a flame-retardant rectangular PCB (printed circuit board) with good insulating property, the hard insulating plate is vertically placed, two round through holes are respectively formed in the two ends of the upper side and the lower side of the hard insulating plate, a power connection bolt is embedded in each through hole, each power connection bolt is of a set of threaded screw structure, and four sets of power connection bolts are formed; a copper strip plate is clamped and fixed together with the two groups of connecting bolts at the upper end and the lower end to form a conductive copper plate, a clamping rail with a horizontal structure is fixed at the horizontal center line of the front end surface of the hard insulating plate, a three-phase air circuit breaker is clamped and connected on the clamping rail, three groups of circuit breaking channels are arranged on the three-phase air circuit breaker in total, each group of circuit breaking channels are connected with the connecting bolts at the upper end and the lower end of the hard insulating plate through distribution wires, so that the three-phase air circuit breaker can control the on-off of circuits between the connecting bolts at the upper end and the lower end of the hard insulating plate; and the conductive copper plates are electrically connected with extension rods with conductive performance.

Preferably, in order to facilitate the connection of the expansion rod with the electric plug-in column and the electric plug-out column, the expansion rod is composed of a copper column bar, a screw hole end, an insulating layer, a screw column end and a tail connection screw hole; the main body of the expansion rod is a copper column strip of a metal copper rod structure, one end of the copper column strip is provided with a threaded column to form a screw column end, the other end of the copper column strip is a screw hole end, a tail connection screw hole is arranged on the screw hole end, and the tail connection screw hole is in threaded fit with threads of the electric input bolt column and the electric output bolt column; the hard insulating plate is characterized in that concentric through holes are formed in the upper end and the lower end of the hard insulating plate and the center of each group of conductive copper plates, the diameter of each through hole is larger than the diameter of each stud end and smaller than the diameter of each end face of each copper post strip (the end faces are the end faces of the copper post strips and the stud ends and do not contain the stud end parts), two groups of extension rods are adopted, the stud ends on the extension rods penetrate through one group of through holes respectively, the stud ends are locked and fixed on the conductive copper plates in a threaded fit mode through clamping rod bolts of nut structures, and the clamping rod bolts are tightly attached to the conductive copper plates close to the end faces of the conductive copper plates.

Preferably, in order to facilitate the live-line operation of the whole device, the outer circumferential surface of the copper column strip is wrapped with an insulating layer made of rubber.

Preferably, wherein the end face of the screw hole end is not covered with the insulating layer in order to ensure good electrical conductivity.

Preferably, in order to reduce the load of the single-stranded wire and avoid causing overload risks, the branch wires are divided into main wires and auxiliary wires, the main wires and the auxiliary wires are both wires with insulating layers, a main wire and an auxiliary wire are fixed on a power plug on each group of conductive copper plates in a voltage-sharing manner, wherein the two groups of main wires are respectively electrically connected with circuit breaking channels on the three-phase air circuit breaker on the same side of two sides, and one ends of the two groups of auxiliary wires, which are close to the three-phase air circuit breaker, are combined and electrically connected with the middle circuit breaking channels on the three-phase air circuit breaker.

Preferably, in order to prevent the corners of the conductive copper plate from colliding, extruding and deforming, so that the conductive copper plate is not attached to the contact of the power connection bolt and the clamping rod bolt, the projection profile of the conductive copper plate on the front end face of the hard insulating plate is located in the profile of the front end face of the hard insulating plate.

Preferably, the power connection plug and the clamping rod plug are made of copper or copper alloy with good conductivity.

Preferably, in order to prevent that the bending deformation of copper cylinder strip is good, influence the utility model discloses an overall assembly, so be in the inside of copper cylinder strip is equipped with concentric stereoplasm steel core.

Preferably, for convenience of installation and live working, the clamping rod bolt and the conductive copper plate on the same side of the clamping rod bolt are kept relatively fixed.

Preferably, in order to facilitate synchronous connection of the two sides of the extension rod, the thread pitch of the thread of the tail connecting screw hole is consistent with that of the thread of the clamping rod bolt, and the thread directions are opposite.

Compared with the prior art, the beneficial effects of the utility model are that:

through the stereoplasm insulation board, electrically conductive copper, the card rail, three-phase air circuit breaker, divide the electric wire, connect the power plug, the extension pole, the establishment of kelly bolt, after the installation, go into the power plug post, go out through electrically conductive copper between the power plug post, divide the electric wire, the extension pole, three-phase air circuit breaker forms the break-make return circuit, set three-phase air circuit breaker to the on-state, go into the power plug post this moment, go out between the power plug post by the short circuit, just can take off the RTO insurance core on the safety base this moment, install the RTO insurance core of replacement again, effectively avoided the electric arc risk of taking load to change the RTO insurance core, can let the user accomplish the maintenance operation that the RTO insurance core was changed under the condition of complete noninductive power failure, can also not lose the power consumption safety when convenient the maintenance.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic diagram of the RTO safety structure used in conjunction with the present invention.

Fig. 3 is a schematic diagram of the distribution line structure of the present invention.

Fig. 4 is a schematic view of the structure of the middle expansion rod of the present invention.

Fig. 5 is a schematic view of the tail screw hole structure of the middle extension rod of the present invention.

Fig. 6 is a schematic view of the assembly principle of the present invention.

In the figure: 1. a rigid insulating plate; 2. a conductive copper plate; 3. clamping a rail; 4. three control on; 5. distributing wires; 6. a plug is connected; 7. an expansion rod; 9. a safety base; 10. an RTO safety core; 11. charging a plug; 12. discharging the plug; 51. a main conductor; 52. a secondary wire; 71. copper column bars; 73. an insulating layer; 74. a stud end; 75. and the tail is connected with a screw hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, in an embodiment of the present invention, a portable bypass device for fast replacing RTO fuse includes: the device comprises a hard insulating plate 1, a conductive copper plate 2, a clamping rail 3, a three-phase air circuit breaker 4, a distribution line 5, a power plug 6, a extension rod 7, a clamping rod plug 8, a safety base 9, an RTO safety core 10, a power plug column 11 and a power plug column 12; the safety base 9 is a base for clamping the RTO safety core 10, metal clamping structures for clamping two ends of the RTO safety core 10 are arranged at two ends of the safety base 9, and the metal clamping structures at two ends of the safety base 9 and the RTO safety core 10 clamped by the metal clamping structures form a circuit path; wherein, an electric input bolt column 11 for externally receiving an electric input potential is arranged on the metal clamping structure at one end of the safety base 9, and an electric output bolt column 12 for externally receiving an electric potential is arranged on the metal clamping structure at the other end of the safety base 9; the electricity inlet bolt column 11 and the electricity outlet bolt column 12 are threaded bolts of the same type; the hard insulating plate 1 is a flame-retardant rectangular PCB plate with good insulating property, the hard insulating plate 1 is kept vertically placed, two round through holes are respectively formed in the two ends of the upper side and the lower side of the hard insulating plate 1, a power connection bolt 6 is embedded in each through hole, each power connection bolt 6 is of a threaded screw structure, and four power connection bolts 6 are connected in total; a copper strip plate is clamped and fixed together with the two groups of connecting bolts 6 at the upper end and the lower end to form a conductive copper plate 2, a clamping rail 3 with a horizontal structure is fixed at the horizontal center line of the front end surface of the hard insulating plate 1, a three-phase air circuit breaker 4 is clamped on the clamping rail 3, three groups of circuit breaking channels are arranged on the three-phase air circuit breaker 4, and each group of circuit breaking channels are connected with the connecting bolts 6 at the upper end and the lower end of the hard insulating plate 1 through distribution wires 5, so that the three-phase air circuit breaker 4 can control the on-off of circuits between the connecting bolts 6 at the upper end and the lower end of the hard insulating plate 1; the conductive copper plates 2 are electrically connected with an expansion rod 7 with conductive performance.

In order to facilitate the connection of the expansion rod 7 with the power input bolt column 11 and the power output bolt column 12, the expansion rod 7 is composed of a copper column bar 71, a screw hole end 72, an insulating layer 73, a stud end 74 and a tail connecting screw hole 75; the main body of the extension rod 7 is a copper column bar 71 of a metal copper rod structure, one end of the copper column bar 71 is provided with a threaded column forming screw column end 74, the other end of the copper column bar 71 is a screw hole end 72, the screw hole end 72 is provided with a tail connection screw hole 75, and the tail connection screw hole 75 is in threaded fit with the threads of the electric bolt entering column 11 and the electric bolt exiting column 12; the upper end and the lower end of the hard insulating plate 1 and the center of each group of conductive copper plates 2 are provided with concentric through holes, the diameter of each through hole is larger than the diameter of each stud end 74 and smaller than the diameter of the end face of each copper stud 71 (the end face is the end face of the copper stud 71 and the end face of the same stud end 74 and does not contain the part of the stud end 74), two groups of extension rods 7 are adopted, the stud ends 74 on the extension rods 7 penetrate through one group of through holes respectively, the stud ends 74 are locked and fixed on the conductive copper plates 2 in a thread fit mode through the clamping rod bolts 8 of nut structures, and the clamping rod bolts 8 are tightly attached to the conductive copper plates 2 close to the end faces of the conductive copper plates 2.

In order to facilitate the live-line operation of the whole device, the outer circumferential surface of the copper bar 71 is wrapped with an insulating layer 73 made of rubber.

Wherein the end surface of the screw hole end 72 is not covered with the insulating layer 73 in order to ensure good electrical conductivity.

In order to reduce the load of a single-stranded wire and avoid overload risks, the branch wire 5 is divided into a main wire 51 and an auxiliary wire 52, the main wire 51 and the auxiliary wire 52 are both wires with insulating layers, a main wire 51 and an auxiliary wire 52 are fixed on a contact bolt 6 on each group of conductive copper plates 2 in a voltage-sharing manner, wherein two groups of main wires 51 are respectively electrically connected with circuit breaking channels on the three-phase air circuit breaker 4 on the same side of two sides, and one ends of the two groups of auxiliary wires 52 close to the three-phase air circuit breaker 4 are combined and electrically connected with a middle circuit breaking channel on the three-phase air circuit breaker 4.

In order to prevent the conductive copper plate 2 from colliding and extruding to deform, so that the conductive copper plate 2 is not attached to the contact of the contact bolt 6 and the clamping rod bolt 8, the projection profile of the conductive copper plate 2 on the front end face of the hard insulating plate 1 is located in the front end face profile of the hard insulating plate 1.

The power connection bolt 6 and the clamping rod bolt 8 are both made of copper or copper alloy with good conductivity.

In order to prevent the copper column bars 71 from bending and deforming well, the overall assembly of the present invention is affected, so that the inside of the copper column bars 71 is provided with a concentric hard steel core.

For convenience of installation and live working, the clamping rod bolt 8 and the conductive copper plate 2 on the same side are kept relatively fixed.

In order to facilitate synchronous connection of the two sides of the extension rod 7, the thread pitch of the tail connecting screw hole 75 is the same as that of the clamping rod bolt 8, and the thread directions are opposite.

The utility model discloses a theory of operation is:

when the RTO safety core 10 needs to be replaced, the tail connecting screw holes 75 of the two groups of extension rods 7 are respectively screwed on the electricity inlet bolt post 11 and the electricity outlet bolt post 12 and are not screwed, the stud ends 74 at the other ends of the two groups of extension rods 7 are respectively aligned with the screw holes of the clamping rod bolts 8, the extension rods 7 are rotated, because the thread pitch of the tail connecting screw holes 75 is consistent with that of the clamping rod bolts 8, but the thread directions are opposite, the extension rods 7 can be simultaneously rotated and locked on the electricity inlet bolt post 11, the electricity outlet bolt post 12 and the clamping rod bolts 8 along with the rotation of the extension rods 7, at the moment, an on-off loop is formed between the electricity inlet bolt post 11 and the electricity outlet bolt post 12 through the conductive copper plate 2, the distribution wires 5, the extension rods 7 and the three-phase air circuit breaker 4, the three-phase air circuit breaker 4 is set to be in a conducting state, at the moment, the electricity inlet bolt post 11 and the electricity outlet bolt post 12 are in a short circuit, at the moment, the RTO safety core 10 on the safety base 9 can be taken down, install the RTO insurance core 10 of replacement again, after finishing changing, reentry electric bolt post 11 again, go out on the electric bolt post 12 reset take off two sets of extension rod 7 can, the electric arc risk of RTO insurance core has effectively been avoided changing in the load to the above-mentioned operation, can let the user accomplish the maintenance operation that RTO insurance core changed under the condition of no perception power failure completely, if the potential safety hazard appears in the power consumption end simultaneously, can promptly open circuit the circuit through disconnection three-phase air circuit breaker 4, can not lose the power consumption safety when convenient the maintenance, certain earth leakage protection tripping operation ability also can be undertaken to the earth leakage protection structure of three-phase air circuit breaker 4 self simultaneously, further guarantee to overhaul construction safety.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; furthermore, the terms "first", "second", etc. 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 defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein; any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A portable bypass device for quick change RTO fuse, comprising: the device comprises a hard insulating plate (1), a conductive copper plate (2), a clamping rail (3), a three-phase air circuit breaker (4), a distribution line (5), a power connection bolt (6), a extension rod (7), a clamping rod bolt (8), a safety base (9), an RTO safety core (10), a power connection bolt column (11) and a power output bolt column (12); the safety base (9) is a base used for clamping an RTO safety core (10), metal clamping structures used for clamping two ends of the RTO safety core (10) are arranged at two ends of the safety base (9), and the metal clamping structures at the two ends of the safety base (9) and the RTO safety core (10) clamped by the metal clamping structures form a circuit path; wherein, an input bolt column (11) for externally receiving a feeding potential is arranged on the metal clamping structure at one end of the safety base (9), and an output bolt column (12) for externally receiving a potential is arranged on the metal clamping structure at the other end of the safety base (9); the electricity inlet bolt column (11) and the electricity outlet bolt column (12) are threaded bolts of the same type; the method is characterized in that: the hard insulating plate (1) is a flame-retardant rectangular PCB (printed circuit board) with good insulating property, the hard insulating plate (1) is kept to be vertically placed, two round through holes are respectively formed in the two ends of the upper side and the lower side of the hard insulating plate (1), a power connection plug (6) is embedded in each through hole, each power connection plug (6) is of a set of threaded screw structure, and four sets of power connection plugs (6) are formed; a copper strip plate is clamped and fixed together with the two groups of connecting bolts (6) at the upper end and the lower end to form a conductive copper plate (2), a clamping rail (3) with a horizontal structure is fixed at the horizontal center line of the front end surface of the hard insulating plate (1), a three-phase air circuit breaker (4) is clamped on the clamping rail (3), three groups of circuit breaking channels are arranged on the three-phase air circuit breaker (4), and each group of circuit breaking channels are connected with the connecting bolts (6) at the upper end and the lower end of the hard insulating plate (1) through distribution wires (5), so that the three-phase air circuit breaker (4) can control the on-off of a circuit between the connecting bolts (6) at the upper end and the lower end of the hard insulating plate (1); and the conductive copper plates (2) are electrically connected with extension rods (7) with conductive performance.

2. The portable bypass device for quick change RTO fuse of claim 1, wherein: the expansion rod (7) is composed of a copper column bar (71), a screw hole end (72), an insulating layer (73), a stud end (74) and a tail connection screw hole (75); the main body of the extension rod (7) is a copper column strip (71) of a metal copper rod structure, one end of the copper column strip (71) is provided with a threaded column forming screw column end (74), the other end of the copper column strip (71) is a screw hole end (72), the screw hole end (72) is provided with a tail connection screw hole (75), and the tail connection screw hole (75) is in threaded fit with threads of the power-in bolt column (11) and the power-out bolt column (12); the hard insulating plate is characterized in that concentric through holes are formed in the upper end and the lower end of the hard insulating plate (1) and the center of each group of conductive copper plates (2), the diameter of each through hole is larger than that of each stud end (74) and smaller than the end face diameter of each copper stud strip (71), two groups of extension rods (7) are adopted, the stud ends (74) on the extension rods (7) penetrate through one group of through holes respectively, the stud ends (74) are locked and fixed on the conductive copper plates (2) in a thread fit mode through the clamping rod bolts (8) of nut structures, and the end faces, close to the conductive copper plates (2), of the clamping rod bolts (8) are tightly attached to the conductive copper plates (2).

3. The portable bypass device for quick change RTO fuse of claim 2, wherein: the outer circumferential surface of the copper column strip (71) is wrapped with an insulating layer (73) made of rubber.

4. A portable bypass device for quick change RTO fuse as claimed in claim 3 wherein: the end face of the screw hole end (72) is not covered with the insulating layer (73).

5. The portable bypass device for quick change RTO fuse of claim 1, wherein: the branch line (5) divide into leading wire (51), vice wire (52), leading wire (51), vice wire (52) are the wire that has the insulating layer, voltage-sharing fastening has a leading wire (51) and a pair wire (52) on the bolt of taking over (6) on every group electrically conductive copper (2), wherein two sets of leading wires (51) realize the electricity with the both sides homonymy circuit break passageway on the three-phase air circuit breaker (4) respectively and are connected, the one end that is close to three-phase air circuit breaker (4) of two sets of vice wires (52) merges and the middle circuit break passageway on three-phase air circuit breaker (4) realizes the electricity and connects.

6. The portable bypass device for quick change RTO fuse of claim 1, wherein: the projection profile of the conductive copper plate (2) on the front end face of the hard insulating plate (1) is positioned in the front end face profile of the hard insulating plate (1).

7. The portable bypass device for quick change RTO fuse of claim 1, wherein: the power connection bolt (6) and the clamping rod bolt (8) are made of copper or copper alloy with good conductivity.

8. The portable bypass device for quick change RTO fuse of claim 2, wherein: and a concentric hard steel core is arranged inside the copper column bar (71).

9. The portable bypass device for quick change RTO fuse of claim 1, wherein: in order to facilitate installation and live working, the clamping rod bolt (8) and the conductive copper plate (2) on the same side of the clamping rod bolt are kept relatively fixed.

10. The portable bypass device for quick change RTO fuse of claim 2, wherein: the thread pitch of the tail screw hole (75) is consistent with that of the clamping rod bolt (8), and the thread directions are opposite.

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