CN113948882A - Overhead line quick access device - Google Patents
Overhead line quick access device Download PDFInfo
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- CN113948882A CN113948882A CN202111098617.8A CN202111098617A CN113948882A CN 113948882 A CN113948882 A CN 113948882A CN 202111098617 A CN202111098617 A CN 202111098617A CN 113948882 A CN113948882 A CN 113948882A
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- cover
- conductive core
- main body
- groove
- access device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20127—Natural convection
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses an overhead line fast access device, which comprises: the base is made of insulating materials; the electric power fitting comprises a main body, the main body is made of conductive materials, the main body is fixedly installed in the base, and a cable installation structure and a connector connection structure are arranged on the main body; the quick connector comprises a quick connector seat, wherein the quick connector seat is fixed on the base and comprises an insulating sleeve which is through from front to back, a conductive core is arranged in the insulating sleeve, the front end of the conductive core is provided with a butt joint structure, the rear end of the conductive core extends out of the insulating sleeve, and the rear end of the conductive core is fixedly connected with the joint connection structure. The electric power fitting and the quick connector seat are skillfully integrated together, so that the electric power fitting is simple and convenient to use, high in installation efficiency and reliable in electric conduction.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to an emergency power supply device for an overhead line.
Background
In recent years, people have higher and higher requirements on power supply reliability, and power enterprises are all using methods to shorten construction and urgent repair time so as to ensure that power is continuously supplied to customers. When the power supply is interrupted due to the fault of the power system, an emergency power generation car is usually started, and an emergency power supply is connected to the power generation car to supply power. However, the conventional overhead line generally does not reserve an access device or an access electric cabinet, so that a great amount of time is often consumed by a constructor to transmit the electric power of the power generation car to a power outage area. This affects the continuity of the power supply and also reduces the use experience of the consumers using the power. Although some access devices capable of increasing efficiency appear in the prior art, the structure of the access device is not ideal enough, and the access efficiency and the power connection safety are still required to be improved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the present invention is directed to an overhead line quick access device, which solves one or more of the problems of the prior art, and provides at least one of the advantages of the prior art.
The solution of the invention for solving the technical problem is as follows: an overhead line fast access device comprising: the base is made of insulating materials; the electric power fitting comprises a main body, the main body is made of conductive materials, the main body is fixedly installed in the base, and a cable installation structure and a connector connection structure are arranged on the main body; the quick connector comprises a quick connector seat, wherein the quick connector seat is fixed on the base and comprises an insulating sleeve which is through from front to back, a conductive core is arranged in the insulating sleeve, the front end of the conductive core is provided with a butt joint structure, the rear end of the conductive core extends out of the insulating sleeve, and the rear end of the conductive core is fixedly connected with the joint connection structure.
The invention has the beneficial effects that: the electric power fitting and the quick connector seat are skillfully integrated together, so that the electric power fitting is simple and convenient to use, high in installation efficiency and reliable in electric conduction.
As a further improvement of the above technical solution, the base includes a boss, a mounting groove is provided in the boss, and the main body is fixed in the mounting groove; the upper side swing joint of boss has the upper cover, the downside swing joint of boss has the lower cover, the upper cover is relative with the lower cover position, form between upper cover and the lower cover and accomodate the space, electric power fitting wholly is located accomodate the space, upper cover and lower cover lock joint each other. The installation groove that sets up and main part adaptation in the base for electric power fitting's installation is more firm reliable, and through increasing the lower cover, can play the guard action to electric power fitting moreover, the upper cover is swing joint with the lower cover moreover, in the use through open the lower cover can, do not influence electric power fitting's use.
As a further improvement of the above technical solution, the rear end of the upper cover is hinged with the base; the rear end of the lower cover is clamped with the base, and the front end of the upper cover is buckled with the front end of the lower cover.
As a further improvement of the technical scheme, the lower end of the upper cover is provided with a cover edge, and the cover edge is abutted against the outer edge of the upper end of the lower cover; the front end of the upper cover is provided with a clamping block, the front end of the lower cover is provided with a buckling groove, and the clamping block is connected with the buckling groove in a buckling mode. Through increasing the lid limit, can be so that upper cover and lower cover sealed effect after closing better.
As a further improvement of the above technical scheme, upper wire passing grooves are formed in the left side and the right side of the upper cover, lower wire passing grooves are formed in the left side and the right side of the lower cover, the upper wire passing grooves are opposite to the lower wire passing grooves in position, and wire passing holes are formed between the upper wire passing grooves and the lower wire passing grooves; a waterproof rubber pad is arranged in the wire passing hole; and a drain hole is formed at the bottom of the lower wire passing groove.
As a further improvement of the above technical solution, the cable mounting structure includes a cable cavity, the cable cavity is disposed on the main body, the cable cavity includes an opening, a slot is disposed on the opening, an extending direction of the slot intersects with a direction of the opening, and at least one end of the slot penetrates through the main body; the cable clamp is characterized by further comprising a base, the base comprises a sealing plate and a sliding block, the sliding block is connected with the clamping groove in a sliding mode, the sealing plate covers the opening, an adjusting screw hole is formed in the sealing plate, a bolt penetrates through the adjusting screw hole, a pressing plate is connected to the inner side of the bolt, and the pressing plate is located in the cable cavity. The overhead wire is fastened in the cable cavity by the pressing plate, so that the connection between the overhead wire and the electric power fitting is tighter.
As a further improvement of the above technical solution, the main body includes a mounting portion, the mounting portion includes a mounting hole, and an axis of the mounting hole is inclined to a horizontal plane; the rear end of the conductive core comprises a connecting column, and the connecting column is fixedly connected with the main body through the mounting hole. And a crown spring is arranged between the connecting column and the mounting hole. Through utilizing spliced pole and mounting hole to carry out fixed connection, not only make the installation reliable, electrically conductive effect is better moreover.
As a further improvement of the technical scheme, a plurality of clamping jaws are arranged at the rear end of the insulating sleeve, the plurality of clamping jaws are annularly arranged on the insulating sleeve at intervals, one end of each clamping jaw is fixedly connected with the insulating sleeve, and the other end of each clamping jaw is suspended in the air; the rear part of the conductive core is provided with an annular clamping groove, and the clamping jaw is abutted to the clamping groove; still be equipped with the beaded finish in the insulating cover, the inner wall of beaded finish with the jack catch butt, the outer wall of beaded finish with the inner wall butt of insulating cover. The invention is fixed and installed by using the clamping jaws in the insulating sleeve and the conductive core, thereby not only being convenient to install, but also being reliable in connection.
As a further improvement of the above technical solution, the conductive core includes a front portion and a rear portion, the front portion includes a cavity therein, and the connecting structure is disposed on the front portion; the front part is provided with a heat dissipation through hole which is communicated with the cavity. The cavity is arranged in the front part of the conductive core, so that when the conductive core is butted with an external joint, the contact area is larger, and the conductive effect is better. And in the use process of the conductive core, the connecting structure is easy to generate heat due to conduction, and the heat can be discharged outwards by adding the heat dissipation through holes.
As a further improvement of the above technical solution, the docking structure includes a guide groove and a positioning hole; the front end of the conductive core is also provided with an insulating cover, the insulating cover covers the outside of the connecting structure, and the insulating cover is provided with a notch corresponding to the guide groove. Utilize the guide way can make things convenient for the butt joint with external joint, moreover through the locating hole, can be so that conductive core and outer articulate more reliable, moreover through increasing insulating cover, can improve the reliability of connecing the electricity.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an overall cross-sectional view of the present invention;
FIG. 3 is a schematic partial perspective view of the present invention;
FIG. 4 is a schematic perspective view of the base and upper and lower cover structures of the present invention;
FIG. 5 is a schematic view of the construction of the insulating sleeve of the present invention;
FIG. 6 is a schematic view of the construction of the conductive core of the present invention;
FIG. 7 is a schematic view of the structure of the insulating cover of the present invention;
FIG. 8 is a schematic structural diagram of another embodiment of the present invention;
fig. 9 is a schematic structural view of still another embodiment of the present invention.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. The drawings illustrate a preferred embodiment of the invention and, together with the description, serve to complement the description with figures so that the person may visually and vividly understand each and every feature and every technical solution of the invention, but are not to be construed as limiting the scope of the invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions. Meanwhile, all technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
In a first embodiment, referring to fig. 1 to 7, an overhead line fast access apparatus includes: a base 100, an electric power fitting 200, and a quick-connect socket 300.
The base 100 is made of an insulating material; the base 100 includes a boss 110, a mounting groove 120 is disposed in the boss 110, connecting wings 130 are disposed on left and right sides of the boss 110, and two first through holes 131 are disposed on the connecting wings 130 (in some other embodiments, the number of the first through holes 131 may be increased adaptively). An upper cover 140 is movably connected to the upper side of the boss 110, a lower cover 150 is movably connected to the lower side of the boss 110, the upper cover 140 is opposite to the lower cover 150, and a receiving space 160 is formed between the upper cover 140 and the lower cover 150.
Specifically, the top end of the boss 110 is provided with a rotating block 111, the rear side of the upper cover 140 is provided with a rotating shaft 141, and the rotating shaft 141 is rotatably connected with the rotating block 111; the lower end of the boss 110 is provided with a supporting block 112, the rear side of the lower cover 150 is provided with a claw 151, and the claw 151 is clamped with the supporting block 112. A clamping block 142 is arranged at the front end of the upper cover 140, a buckling groove 152 is arranged at the front end of the lower cover 150, and the clamping block 142 is connected with the buckling groove 152 in a buckling manner. Meanwhile, the left and right sides of the upper cover 140 and the lower cover 150 are both provided with a wire passing groove structure, specifically, the left and right sides of the upper cover 140 are both provided with an upper wire passing groove 143, the left and right sides of the lower cover 150 are both provided with a lower wire passing groove 153, the upper wire passing groove 143 is opposite to the lower wire passing groove 153, and both of the upper wire passing groove 143 and the lower wire passing groove 153 are both approximately semicircular, and after the upper cover 140 and the lower cover 150 are closed, the upper wire passing groove 143 and the lower wire passing groove 153 are closed to form a wire passing hole 400.
When the upper cover 140 needs to be opened, the latch 142 of the upper cover 140 is separated from the catch groove 152 of the lower cover 150, so that the upper cover can be turned over and opened. The lower cover is usually rarely disassembled when it is used, and thus, the lower cover 150 is fixed to the supporting block 112 by the jaws 151. It should be appreciated that after the jaws 151 and the support block 112 are snapped together, a tight interference fit is provided between the two, requiring a relatively large force to separate the two. Thereby ensuring reliability of use. And as for the combination force between the two, the fit tolerance between the two can be adjusted according to the actual requirement.
The electric power fitting comprises a main body 200, wherein the main body 200 is made of a conductive material, the main body 200 is fixedly installed in the installation groove 140 of the base 100, the shape of the installation groove 140 is matched with that of the bottom of the electric power fitting 200, and meanwhile, the main body 200 is integrally located in the accommodating space 160.
The main body 200 includes a cable portion 210 and a mounting portion 220, the cable portion 210 and the mounting portion 220 are integrally formed, the mounting portion 220 is located at the front side of the cable portion 210, a cable mounting structure 230 is arranged on the cable portion 210, and a joint connecting structure 240 is arranged on the mounting portion 220.
Specifically, the cable mounting structure 230 includes:
the cable chamber 231 that the opening is ascending, cable chamber 231 runs through along left right direction cable portion 210, the top in cable chamber 231 is equipped with draw-in groove 232, draw-in groove 232 has twice draw-in groove 232 distribute on two terminal surfaces around cable chamber 231, just draw-in groove 232 extend and run through along left right direction cable portion 210. The cable chamber 231 is provided with a base 233, the base 233 includes a sealing plate 2331 and two sliders 2332, the two sliders 2332 are disposed on the front and rear sides of the sealing plate 2331, and the sliders 2332 and the sealing plate 2331 are integrally formed. The slider 2332 has a shape that matches the shape of the card slot 232 so that the base 233 as a whole can slide in the left-right direction in the cable chamber 231. Two adjusting screw holes are formed in the sealing plate 2331, two bolts 234 are inserted through the two adjusting screw holes, respectively, and a pressing plate 235 is provided inside the two bolts 234, and the pressing plate 235 can slide up and down in the cable chamber 231.
Specifically, the joint connection structure 240 includes:
mounting hole 241, mounting hole 241 runs through the setting and is in on the installation department 220, the one end of mounting hole 241 includes horn mouth 242, be equipped with the stopper on the horn mouth 242.
The quick connector 300 is fixed on the base 100, the quick connector 300 includes an insulating sleeve 310 that is through from front to back, a conductive core 320 is disposed in the insulating sleeve 310, a butt joint structure 321 is disposed at the front end of the conductive core 320, the rear end of the conductive core 320 extends out of the insulating sleeve 310, and the rear end of the conductive core 320 is fixedly connected to the connector connecting structure 240.
Meanwhile, the rear end of the insulating sleeve 310 is provided with a plurality of claws 311, the inner sides of the claws 311 are provided with wedge blocks, the claws 311 are annularly arranged on the insulating sleeve 310 at intervals, one end of the claw 311 is fixedly connected with the insulating sleeve 311, and the other end of the claw 311 is suspended; the rear part of the conductive core 320 is provided with a conical guide section 322 and an annular second clamping groove 323, the second clamping groove 323 is located in front of the guide section 322, the outer diameter of the second clamping groove 323 is smaller than the maximum outer diameter of the guide section 322, and the clamping jaw 311 is abutted to the second clamping groove 323.
During installation, the conductive core 320 is inserted into the insulating sleeve 310 from front to back, the rear end of the conductive core 320 penetrates through the insulating sleeve 310, then when the guide section 322 contacts the claw 311, the guide section 322 presses the claw 311 outwards, so that the claw 311 is spread outwards to allow the conductive core 320 to pass through, and when the guide section 322 completely passes through the claw 311, the claw 311 is clamped in the second clamping groove 322, and because the inner side of the claw 311 is provided with the wedge-shaped block, after the claw 311 is connected with the second clamping groove 322, the conductive core 320 cannot move back and forth. Meanwhile, in order to prevent the conductive core 320 from rotating relative to the insulating sleeve 310, in this embodiment, a stop plane is disposed at the rear end of the conductive core 320, and a positioning plane is also disposed at the rear portion of the insulating sleeve 310, so that when the conductive core 320 is installed in place, the stop plane and the positioning plane abut against each other, and the conductive core 320 cannot rotate.
Then, the quick-plug connector holder 300 is mounted on the electric power fitting, in this embodiment, the rear end of the conductive core 320 is provided with a connecting column 324, the rear end of the connecting column 324 is provided with an external thread, the connecting column 324 penetrates through the lower cover 150 and then penetrates through the mounting hole 241, and a nut is screwed on the connecting column 324, so that the connecting column 324 and the mounting portion 220 are fixedly connected together. After the installation, the insulating sheath 310 is tightly attached to the lower cover 150.
When the emergency vehicle is needed to supply power to the power failure area, the installation position of the access device is selected firstly, and the access device is generally installed near a street code of an overhead line. The base 100 is then secured to the wall surface by expansion bolts.
Then, the upper cover 140 is opened, and one of the cables of the overhead line is peeled off, so that the conductive metal wire is fully exposed; then the base 233 in the cable cavity 231 of the power fitting is removed so that the opening is not blocked; the bare conductive wire is then placed into the cable cavity 231 from the opening; the base 233 is then slid back over the cable cavity 231 from the card slot 232 so that the cover plate 2331 covers the opening so that the conductive wires cannot be removed from the cable cavity 231; next, by tightening the two bolts 234, the bolts 234 bring the pressing plate 235 close to the cable cavity 231, so that the conductive wire and the cable part 210 of the main body 200 are tightly attached together.
The upper cover 140 is then covered such that the cable passes through the wire passing hole 400, the upper cover 140 and the lower cover 150 are tightly combined together, and the power fittings are hidden in the receiving space 160.
Finally, the cable connector of the emergency vehicle is inserted into the quick-insertion connector base 300, so that the electric power of the emergency vehicle is transmitted to the electric power fittings through the conductive core and then is transmitted to the overhead line.
Of course, the access device corresponds to only one cable, and a plurality of access devices need to be installed for a plurality of cables arranged on the overhead line.
And this access device direct mount has had protective structure simultaneously on the wall, can used repeatedly many times, when using again, only need directly insert the cable joint of emergency vehicle in quick-witted socket 300 can, simple and convenient has improved the efficiency of construction operation widely. Moreover, since the overhead line is generally installed at a high altitude, the cable of the emergency vehicle needs to be suspended on the overhead line, and the weight of the cable is not light, and the weight of the cable can be directly transmitted to the base by using the base, so that the weight is prevented from directly acting on the overhead line, and the load of the overhead line is prevented from being increased.
It can be understood that the shapes of the upper cover 140 and the lower cover 150 are determined according to the shapes of the electric fittings, and the outlines of the receiving spaces 160 formed by the upper cover 140 and the lower cover 150 are similar to the outlines of the electric fittings for shielding protection. Meanwhile, for protection, reinforcing ribs are arranged in the upper cover 140 and the lower cover 150, and an arc-shaped drainage structure is arranged on the outer surface of the upper cover 140. And the lower cover 150 may be provided with second mounting holes 154 through which peripheral connectors are mounted. And in the second mounting hole 154, a corresponding sealing structure, such as a sealing ring, may be provided.
Since the access device can be installed outdoors for a long time, in order to improve the waterproof function of the interior, it is further preferable that the lower end of the upper cover 140 is provided with a cover rim 144, and the cover rim 144 abuts against the outer edge of the upper end of the lower cover 150. At the edge where the upper cover 140 and the lower cover 150 are combined, the upper cover 140 is provided with a ring of cover rim 144 which is turned outwards, when the upper cover 140 and the lower cover 150 are fastened together, the cover rim 144 completely blocks the outer edge of the upper end of the lower cover 150, and since the cover rim 144 is integrally formed with the upper cover 140, rainwater falling from the upper cover 140 flows away through the cover rim 144 and cannot flow into the receiving space from the seam between the upper cover 140 and the lower cover 150. In a further preferred embodiment, a sealing strip may be added on the inner side of the cover rim 144, and when the upper cover 140 is fastened to the lower cover 150, the sealing strip is deformed by compression, so that the waterproof effect is improved.
Meanwhile, in order to achieve a better waterproof effect, the convex edge 170 is arranged around the boss 110, the convex edge 170 surrounds the mounting groove 120, meanwhile, the upper cover 140 and the lower cover 150 are both provided with flanges matched with the convex edge 170, and after the upper cover 140 and the lower cover 150 are closed, the convex edge 170 and the flanges are mutually abutted together, so that rainwater is effectively prevented from entering the accommodating space from the joint between the upper cover 140 and the boss 110.
Since the wire passing hole 400 communicates the external space with the receiving space, in order to improve the waterproof performance of the receiving space 160, the waterproof rubber mat 500 is disposed in the wire passing hole 400. The waterproof rubber mat 500 may be divided into an upper portion and a lower portion, and the upper portion and the lower portion are respectively installed on the upper cover 140 and the lower cover 150. The upper and lower parts of the waterproof rubber pad 500 are both provided with semicircular gaps, and the inner diameter of the semicircular gaps is smaller than the outer diameter of the cable. After the upper cover 140 and the lower cover 150 are closed, the waterproof rubber mat 500 can be tightly connected with the cable, so that rainwater is effectively prevented from entering the accommodating space through the cable. Of course, the waterproof rubber mat 500 is tightly connected with the upper wire passing groove 143 or the lower wire passing groove 153.
Further, in a preferred embodiment, a drain hole is formed at the bottom of the lower wire passage groove 153. When rainwater enters the wire passing hole along the cable, the rainwater is blocked by the waterproof rubber mat 500, and then the rainwater can be discharged along the bottom of the lower wire passing groove 320, so that the rainwater is prevented from accumulating to cause leakage of the waterproof rubber mat 500.
In order to make the connection between the exposed conductive metal wires and the cable cavity 231 more secure, it is further preferable that the cable cavity 231 is provided with a concave-convex pattern on one side, and the pressing plate 235 is provided with an anti-slip pattern on the side facing the cable cavity 231. Through the effect of raised grain and anti-skidding line for electrically conductive metal wire is firmly fixed in cable chamber 231, the skew of position can not take place, thereby electrically conductive between electrically conductive metal wire and the main part is better.
Further preferably, the axis of the mounting hole 241 is inclined to the horizontal plane. Because the mounting hole 241 inclines and sets up for quick connector seat is whole also to lean out after the installation, thereby makes the cable at emergency vehicle when the access, can not take place to interfere with current overhead line, leaves for the bigger operating space of constructor.
Further as a preferred embodiment, one end of the mounting hole 241 includes a bell mouth 242, and a limiting block is disposed on the bell mouth 242. One end of the mounting hole 241 is of a tapered bell mouth 242 structure, and meanwhile, the guide section 322 of the conductive core 320 is of a corresponding tapered structure, so that when the conductive core 320 is fastened and mounted in the mounting hole 231, the two conductive cores are connected more tightly, and the conductivity is better. The limiting block can prevent the conductive core from rotating in the mounting hole 241, and the reliability of connection is further improved.
Meanwhile, in order to further improve the connection reliability between the conductive core 320 and the power fitting, a gasket and a loosening spring plate are further arranged between the nut and the mounting portion 220. Moreover, a crown spring is disposed between the connection post 324 and the mounting hole 241. By adding the crown spring, the outer end face of the connecting column 324 is connected with the inner surface of the mounting hole 241 more tightly, and the conductive effect is better.
The conductive core 320 comprises a front portion 325 and a rear portion 326, the front portion 325 includes a cavity 327 therein, and the connecting structure 321 is disposed on the front portion 325; the attachment post 324 and the guide section 322 are both provided with the rear portion 326, which may be a solid structure. The cavity 327 is formed behind the butt joint structure 321, so that the contact area between the joint of the external emergency vehicle and the conductive core 320 can be increased, and the conductive performance is improved.
Meanwhile, a heat dissipation through hole 328 is provided on the front portion 326, and the heat dissipation through hole 328 communicates with the cavity 327.
Further in a preferred embodiment, an internal thread 329 is provided in the cavity 327 near the rear end. The internal threads 329 may be used for a mating connection with an external fitting.
Referring to fig. 6, further as a preferred embodiment, the docking structure 321 includes a guide slot 3211 and a positioning hole 3212. Specifically, the guide groove 3211 includes a first annular groove and a second annular groove penetrating through the conductive core, the second annular groove and the first annular groove are communicated with each other, and the first annular groove is disposed inside the front end of the conductive core 320; then, two symmetrical circular positioning holes 3212 are further formed at both ends of the first groove.
When corresponding the use, the joint of outside emergency vehicle is including the connecting block, and this connecting block enters into first groove from the second groove at first, then rotates along first groove, has supported locating hole 3212 until the connecting block to make outside joint and conductive core be connected convenient and reliable more.
Referring to fig. 2, in a further preferred embodiment, a reinforcing ring 600 is further disposed in the insulating sleeve 100, an inner wall of the reinforcing ring 600 abuts against the jaws 311, and an outer wall of the reinforcing ring 600 abuts against an inner wall of the insulating sleeve 310. The reinforcing ring 600 is made of a material with certain elasticity, and when the insulating sleeve is used, the outward turning degree of the jaws 311 is limited by the reinforcing ring 600, so that the conductive core 320 and the insulating sleeve 310 are well installed.
Referring to fig. 1, in order to ensure that the quick connector socket has good waterproof performance in use, a cover 700 is further provided outside the insulating sleeve 310 as a preferred embodiment. Specifically, the insulation sleeve 310 is externally provided with a mounting groove 312, the sealing cover 700 includes a mounting ring 710, a connecting strip 720 and a cover body 730, the mounting ring 710 is disposed in the mounting groove 312, two ends of the connecting strip 720 are respectively connected to the mounting ring 710 and the cover body 730, and the outer diameter of the cover body 730 is adapted to the inner diameter of the opening at the front end of the insulation sleeve 310.
Further, a seal ring may be provided inside the opening at the front end of the insulating cover 310, and the seal ring may abut against the cover 730. Meanwhile, the front end of the insulating sleeve 310 is a bell mouth 313, and the outer diameter of the bell mouth 313 gradually increases from back to front.
Referring to fig. 7, as a further preferred embodiment, an insulating cover 800 is further disposed at the front end of the conductive core 320, the insulating cover 800 covers the connecting structure 321, and a notch corresponding to the guide groove 3211 is disposed on the insulating cover 800. By adding the insulating cover 800, the reliability of power connection can be improved.
In the second embodiment, referring to fig. 8, unlike the first embodiment, in the present embodiment, the main body 200 of the electric power fitting is not provided with the mounting portion, but a slope is provided at the lower side of the cable portion 210, then a positioning groove 211 is provided on the slope, then a connection screw hole 212 is provided in the positioning groove 211, and the positioning groove 211 and the connection screw hole 212 are used as the joint connection structure. In this embodiment, the rear end of the conductive core 320 does not have the connecting post 324, but a conductive plate is used, which may be integrally formed with the conductive core 320 or separately installed. The shape of this conductive plate corresponds with the shape of constant head tank 211, and during the installation, directly pass the conductive plate after-fixing on connecting screw 212 through the screw to make electrically conductive core 320 and electric power fitting realize electrically conductive the switching on.
In the third embodiment, referring to fig. 9, unlike the second embodiment, the opening of the cable cavity 231 is forward in the present embodiment, and the rest of the structure is the same as that of the second embodiment.
In order to facilitate the fixed installation of the power fitting, as a preferred embodiment, the main body 200 is provided with mounting wings 250 on both left and right sides of the cable part 210, and the mounting wings 250 are provided with through holes. The mounting wings 250 and the cable part 210 are also integrally formed, and at the time of mounting, at least two screws are fixed on each mounting wing 250, so that the whole electric power fitting is reliably mounted and fixed.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (10)
1. The utility model provides an overhead line quick access device which characterized in that: the method comprises the following steps:
the base is made of insulating materials;
the electric power fitting comprises a main body, the main body is made of conductive materials, the main body is fixedly installed in the base, and a cable installation structure and a connector connection structure are arranged on the main body;
the quick connector comprises a quick connector seat, wherein the quick connector seat is fixed on the base and comprises an insulating sleeve which is through from front to back, a conductive core is arranged in the insulating sleeve, the front end of the conductive core is provided with a butt joint structure, the rear end of the conductive core extends out of the insulating sleeve, and the rear end of the conductive core is fixedly connected with the joint connection structure.
2. The overhead line fast access device of claim 1, wherein: the base comprises a boss, a mounting groove is formed in the boss, and the main body is fixed in the mounting groove; the upper side swing joint of boss has the upper cover, the downside swing joint of boss has the lower cover, the upper cover is relative with the lower cover position, form between upper cover and the lower cover and accomodate the space, electric power fitting wholly is located accomodate the space, upper cover and lower cover lock joint each other.
3. The overhead line fast access device of claim 2, wherein: the lower end of the upper cover is provided with a cover edge, and the cover edge is abutted against the outer edge of the upper end of the lower cover; the front end of the upper cover is provided with a clamping block, the front end of the lower cover is provided with a buckling groove, and the clamping block is connected with the buckling groove in a buckling mode.
4. The overhead line fast access device of claim 2, wherein: the upper wire passing grooves are formed in the left side and the right side of the upper cover, the lower wire passing grooves are formed in the left side and the right side of the lower cover, the upper wire passing grooves are opposite to the lower wire passing grooves in position, and wire passing holes are formed between the upper wire passing grooves and the lower wire passing grooves; a waterproof rubber pad is arranged in the wire passing hole; and a drain hole is formed at the bottom of the lower wire passing groove.
5. The overhead line fast access device of claim 1, wherein: the cable mounting structure comprises a cable cavity, the cable cavity is arranged on the main body and comprises an opening, a clamping groove is arranged on the opening, the extending direction of the clamping groove is intersected with the direction of the opening, and at least one end of the clamping groove penetrates through the main body; the cable clamp is characterized by further comprising a base, the base comprises a sealing plate and a sliding block, the sliding block is connected with the clamping groove in a sliding mode, the sealing plate covers the opening, an adjusting screw hole is formed in the sealing plate, a bolt penetrates through the adjusting screw hole, a pressing plate is connected to the inner side of the bolt, and the pressing plate is located in the cable cavity.
6. The overhead line fast access device of claim 5, wherein: the main body comprises a mounting part, the mounting part comprises a mounting hole, and the axis of the mounting hole is obliquely arranged with the horizontal plane; the rear end of the conductive core comprises a connecting column, and the connecting column is fixedly connected with the main body through the mounting hole.
7. The overhead line fast access device of claim 6, wherein: and a crown spring is arranged between the connecting column and the mounting hole.
8. The overhead line fast access device of claim 1, wherein: the rear end of the insulating sleeve is provided with a plurality of clamping jaws which are annularly arranged on the insulating sleeve at intervals, one end of each clamping jaw is fixedly connected with the insulating sleeve, and the other end of each clamping jaw is suspended; the rear part of the conductive core is provided with an annular clamping groove, and the clamping jaw is abutted to the clamping groove; still be equipped with the beaded finish in the insulating cover, the inner wall of beaded finish with the jack catch butt, the outer wall of beaded finish with the inner wall butt of insulating cover.
9. The overhead line fast access device of claim 8, wherein: the conductive core comprises a front part and a rear part, the front part comprises a cavity, and the connecting structure is arranged on the front part; the front part is provided with a heat dissipation through hole which is communicated with the cavity.
10. The overhead line fast access device of claim 8, wherein: the butt joint structure comprises a guide groove and a positioning hole; the front end of the conductive core is also provided with an insulating cover, the insulating cover covers the outside of the connecting structure, and the insulating cover is provided with a notch corresponding to the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111098617.8A CN113948882B (en) | 2021-09-18 | 2021-09-18 | Quick access device for overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111098617.8A CN113948882B (en) | 2021-09-18 | 2021-09-18 | Quick access device for overhead line |
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| CN113948882A true CN113948882A (en) | 2022-01-18 |
| CN113948882B CN113948882B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111098617.8A Active CN113948882B (en) | 2021-09-18 | 2021-09-18 | Quick access device for overhead line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114977021A (en) * | 2022-06-27 | 2022-08-30 | 广东电网有限责任公司 | A kind of overhead line quick connect device |
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