CN211530219U

CN211530219U - General flexible connection for rural power grid transformation and upgrading project

Info

Publication number: CN211530219U
Application number: CN201922020696.5U
Authority: CN
Inventors: 瞿征; 彭钰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-09-18
Anticipated expiration: 2029-11-12

Abstract

General swing joint of rural power grids transformation upgrading engineering has branch crimping body and electric conductance lead screw, branch crimping body lateral part intermediate position sets up indentation board recess, and the middle part sets up the slide opening in the indentation board recess, and the slide opening both sides sets up the silk hole, sets up the reinforced electricity wire guide sleeve in the slide opening, strengthens the intraductal electric conductance lead screw that sets up of electric conductance wire sleeve, and one end of electric conductance lead screw sets up thin slide opening, and another tip sets up thick slide opening, sets up the anticreep pivot in the thick slide opening, and an anticreep pivot tip sets up axle recess, and the axle recess outside sets up the jam plate, and the jam plate upper end sets up the pressure bolt hole, and the lower. The utility model can be used in a low-voltage 0.4 KV distribution line and a high-voltage 10 KV distribution line.

Description

General flexible connection for rural power grid transformation and upgrading project

The technical field is as follows:

the utility model relates to a link fitting that continues that transmission and distribution lines used directly relates to the general loose joint of rural power grids transformation upgrade engineering, and the specially adapted uses on the transmission and distribution lines after the upgrading.

Background art:

the power transmission to the user is completed through high-low voltage power transmission and distribution lines. The wire connection hardware fitting is realized by using a single parallel groove clamp in the T-connection construction of the power transmission and distribution line project. The parallel groove clamp has the following effects in the engineering construction of the power transmission and distribution line: after accomplishing user's branch circuit erects, erect branch initial end wire after accomplishing still to insert to T contact trunk electric wire at last, must use conventional parallel groove clamp just can realize continuing the connection with trunk electric wire T contact when inserting branch initial end wire to T contact trunk electric wire, its way that uses parallel groove clamp is: firstly, a semicircular slot at one side end of a double-groove fixing body of a parallel groove clamp is attached to the lower part of the bottom of a main wire at a T joint, then a double-groove pressing body of the parallel groove clamp is arranged right above the main wire at the T joint, then the double-groove fixing body and the double-groove pressing body are slightly fixed by using a fixing bolt, then the end of a branch wire to be connected into the main wire is inserted into the semicircular slot at the other side between the double-groove fixing body and the double-groove pressing body, and finally the fixing bolt for fixing the double-groove pressing body is forcibly fastened to complete the most reliable electrical connection between the branch wire and the main wire at the T joint. However, in long-term use, people also find that although the existing parallel groove clamp has a simple structure, is convenient and practical, the technical problem which is not solved by people and cannot meet the modern power supply requirement exists: firstly, when the preceding-stage end of the branch wire end protection device and the control device (namely, a drop-out fuse, an isolating switch, a boundary switch and the like) which are connected to the parallel groove clamp with the original structure of a branch house are not naturally damaged and require irregular maintenance, the branch wire end connected to the parallel groove clamp with the original structure can not be separated from the live T contact of the main line (namely, the branch wire end can not be withdrawn from the live T contact of the main line from history), and at the moment, the equipment which is not naturally damaged can be irregularly inspected and maintained under the condition of no existence (necessary power failure). When a branch conductor end protection device and a control device (namely a drop-out fuse, an isolating switch, a demarcation switch and the like) which are connected to the parallel groove clamp with the original structure are naturally damaged and need to be maintained or replaced for several times, because the branch conductor end connected to the parallel groove clamp with the original structure is also an inseparable live T contact of a main line, the protection device and the control device which are naturally damaged can be maintained or replaced after the main line is subjected to switching-off and power-off, and at the moment, people need to arrange a thorough power-off plan and inform all users along the line and then can perform planned power-off and treatment. Thirdly, in particular: when a branch conductor end protection device and a control device (namely, a drop-out fuse, an isolating switch, a demarcation switch and the like) on a parallel groove clamp with an original structure are connected to a branch user for several times, sudden failures occur and need to be maintained or replaced in time, and at the moment, the devices causing the sudden failures of the branch users can be maintained or replaced after sudden brake opening and power failure. When the power is cut off due to sudden switching-off, the power is connected with the common users on the same line in parallel, and the common economic loss and the major economic loss are easy to cause different degrees due to the sudden switching-off. Thirdly, and even more important: when a class A user (a special user) connected in parallel with the same line encounters sudden power failure, other unforeseeable serious and unsafe accidents are more easily caused.

The utility model has the following contents:

the utility model aims at providing a general loose joint of rural power grids transformation upgrade engineering, it can solve effectively: when sudden faults occur after the protection equipment and the control equipment which are connected to the branch wire end of the original structure parallel groove clamp are subjected to secondary operation and need to be maintained or replaced in time, the branch wire connected to the original structure parallel groove clamp cannot be separated from the live T contact of the main line (namely the end of the branch wire cannot be withdrawn from the live T contact of the main line), and the protection equipment and the control equipment which have the sudden faults can be maintained or replaced after sudden brake opening and power off are performed on the main line. Particularly more important is: when a class A user connected in parallel with the same line encounters sudden power failure, other major technical problems of unforeseeable unsafe accidents occur very easily. Therefore, it is necessary to develop a reliable upgrade product which can be adapted to the modern electric power industry department (the purpose of best service without power cut) and is effective and practical and can be conveniently and easily disassembled and assembled when the T-contact of the trunk wire is in a live state, and the above-mentioned problem is solved by the granted patent 2018203556840. In use it has also been found that: 2018203556840, the branch splicing sleeve 5 is installed horizontally, and the practical disadvantages still exist in the practical application: firstly, the end of the branch lead is bent by 90 degrees and then is pressed. And secondly, the compression joint mode is a bolt direct pressing mode (namely the end of the bolt directly presses and contacts the end of the lead and then easily damages the lead). The purpose of the utility model is to solve the above new shortcoming namely: the installation mode of the end of the branch lead is vertical installation. And secondly, the compression joint mode is a direct compression joint mode of adopting a compression joint plate in a compression joint groove. And thirdly, the electric conduction lead screw can not be separated when being screwed off for a long distance.

The purpose of the utility model is realized like this: general swing joint of rural power grids transformation upgrading engineering has branch crimping body and electric conductance lead screw, characterized by: a retractable plate groove is arranged in the middle of one side part of the branch compression joint body, a sliding hole is arranged in the middle of the retractable plate groove, and screw holes are formed in two side ends of the sliding hole.

As the further scheme of the utility model is: and a reinforced electric wire guide sleeve is arranged in the slide hole.

As another aspect of the present invention: the reinforced electric conducting wire sleeve is internally provided with an electric conducting lead screw, one end part of the electric conducting lead screw is provided with a thin sliding hole, and the other end part of the electric conducting lead screw is provided with a thick sliding hole.

As another scheme of the present invention is: an anti-falling shaft pin is arranged in the coarse sliding hole, and a shaft groove is formed in one end of the anti-falling shaft pin.

As still another scheme of the utility model is: the shaft groove is externally provided with a locking plate, the upper end part of the locking plate is provided with a press bolt hole, and the middle part of the lower end of the locking plate is provided with a semicircular lock hole.

The utility model discloses owing to adopted and set up thin slide opening at a conductance lead screw tip, another tip sets up thick slide opening, sets up the anticreep pivot in the thick slide opening, and its characteristics are: insert the anticreep pivot to the inside of electric conductance lead screw and twist the electric conductance lead screw again to the inside back of strengthening the electric conductance wire sleeve, the anticreep pivot has can realize can blockking that the electric conductance lead screw can not separate adds electric conductance wire sleeve.

Still owing to adopted and set up the indentation board recess in branch crimping body lateral part intermediate position, anticreep pivot one end sets up the axle recess, and axle recess outside sets up the jam plate, and jam plate lower extreme middle part sets up the semicircle lockhole, and its characteristics are: after the two lock plates are symmetrically fixed in the indentation plate groove, the shaft groove which is arranged at one end part of the anti-falling shaft pin in the electric conduction screw can be clamped again by the semicircular lock hole at the middle part of the lower end of the lock plate (so that the electric conduction screw can not withdraw from the electric conduction wire guide sleeve as well).

Use the utility model discloses, accomplish completely: firstly, when a branch wire end protection device and a control device which are connected to an original structure parallel groove clamp by a branch house are naturally damaged and require irregular maintenance, the branch wire end connected to the original structure parallel groove clamp cannot be separated from a live T joint of a main line (namely the branch wire end cannot be withdrawn from the live T joint of the main line from history), and the equipment which is not naturally damaged can be irregularly inspected and maintained under the condition of no condition (power failure). Two, when the protective apparatus and the controlgear of branch wire end break down after the time need in time maintain or change, insert extremely the utility model discloses an on branch wire can realize completely can freely conveniently withdrawing from branch wire end with the electrified T contact of trunk line, need not implement and take to maintain or change the protective apparatus and the controlgear that break down suddenly after the power-off suddenly. Thirdly, the use can be permanent once, and the reuse can be realized after the disassembly. And fourthly, the connection mode after the connection is finished can be regarded as dead connection, and the connection mode can also be regarded as live connection after the single nut is unscrewed and removed by using a special operation tool. Fifth, the utility model can be used in low voltage 0.4 KV distribution line and high voltage 10 KV distribution line.

The utility model discloses can never be used as the protection equipment to use in operation, can never be used as the controlgear to use after the separation.

Description of the drawings:

fig. 1 is a branch crimp body, fig. 2 is a reinforced electrical lead bushing, fig. 3 is an electrical lead screw, fig. 4 is a perspective view of the electrical lead screw, fig. 5 is an anti-drop shaft pin, fig. 6 is a lock plate, fig. 7 is a flat opening press stud, fig. 8 is a six-ridge stud rod, fig. 9 is a crimp plate, fig. 10 is a trunk line T-joint body, and fig. 11 is a general assembly view.

The specific implementation mode is as follows:

fig. 1, fig. 2, fig. 3, fig. 5, fig. 6 are the structure diagram of the utility model, it is right to combine fig. 1, fig. 2, fig. 3, fig. 5, fig. 6 below the utility model discloses it further explains, 1 side middle part of the branch crimping body of fig. 1 sets up indentation board recess 2, the middle part sets up slide opening 3 in indentation board recess 2, 3 both sides of slide opening set up screw hole 4, set up fig. 2 in the slide opening 3 and strengthen electrical lead sleeve 5, set up fig. 3 electrical lead screw 6 in strengthening electrical lead sleeve 5, 6 tip of electrical lead screw sets up thin slide opening 7, another tip sets up thick slide opening 8, set up 5 anticreep pivots 9 of figure in thick slide opening 8, 9 tip of anticreep pivots sets up

axle recess

10, 10 outside sets up 6 jam plate 11 of fig. 6, 11 upper end sets up pressure bolt hole 12, the lower extreme middle part sets up semicircle lockhole 13.

In the first embodiment, the following description is made with reference to fig. 1, in which a slide hole 3 is disposed in the middle of a recess 2 of a retractable plate of a branched compression joint body 1, a reinforced electrical lead sleeve 5 of fig. 2 is disposed in the slide hole 3, and a conductive lead screw 6 of fig. 3 is disposed in the reinforced electrical lead sleeve 5: after the fig. 2 reinforced electric wire guide sleeve 5 is forcibly pressed into the inside of the middle sliding hole 3 in the indentation plate groove 2 in fig. 1 by using a press, the fig. 2 reinforced electric wire guide sleeve 5 can be used for enabling the fig. 3 electric wire guide screw 6 to be screwed into the sleeve of the fig. 3 reinforced electric wire guide sleeve (preventing the phenomenon of wire sliding from occurring).

In the second embodiment, the function of the anti-slip shaft pin 9 in fig. 5 in the rough-slip hole 8 is described with reference to fig. 3, in which the fine-slip hole 7 is formed at one end of the conductance screw 6, and the rough-slip hole 8 is formed at the other end: after the anti-disengaging shaft pin 9 of fig. 5 is inserted into the electrical lead screw 6 of fig. 3 and then the electrical lead screw 6 of fig. 3 is screwed into the reinforced electrical lead sleeve 5 of fig. 2, the anti-disengaging shaft pin 9 of fig. 5 can prevent the electrical lead screw 6 of fig. 3 from being separated from the reinforced electrical lead sleeve 5 of fig. 2.

Embodiment three, combine figure 1 to explain branch's crimp body 1 a side middle part position sets up indentation board recess 2, and fig. 5 anticreep pivot 9 an end sets up axle recess 10, and axle recess 10 outside sets up fig. 6 jam plate 11, and jam plate 11 lower extreme middle part sets up the function of semicircle lockhole 13: after the two locking plates 11 shown in fig. 6 are symmetrically fixed in the indentation plate groove 2 shown in fig. 1, the semicircular locking hole 13 in the middle of the lower end of the locking plate 11 can clamp the shaft groove 10 which is already arranged in the electric lead screw 6 shown in fig. 3 and is arranged at one end of the anti-falling shaft pin 9 shown in fig. 5 again (so that the electric lead screw 6 shown in fig. 3 can not retreat from the electric lead bushing 5 shown in fig. 2 as well).

The utility model discloses an assembly process does: firstly, strongly pressing the reinforcing electric wire guide sleeve 5 in fig. 2 into the sliding hole 3 in the middle of the indentation plate groove 2 in fig. 1 by using a press (copper-aluminum transition is realized between the reinforcing electric wire guide sleeve 5 in fig. 2 and the sliding hole 3 in the middle of the indentation plate groove 2).

And step two, inserting the anti-disengaging shaft pin 9 in fig. 5 into the inner part of the electric lead screw 6 in fig. 3, and enabling one end with the shaft groove 10 to penetrate out of the fine sliding hole 7.

And the third operation step, reversely turning the branched crimping body 1 shown in fig. 1, and screwing the electric lead screw 6 shown in fig. 3 into the reinforced electric lead sleeve 5 shown in fig. 2 pressed into the slide hole 3 shown in fig. 1.

And step four, using two locking plates 11 in the figure 6 to be symmetrically arranged in the plate groove 2 in the figure 11, using four flat-open mouth pressing bolts 14 in the figure 7 to penetrate through the bolt pressing holes 12 of the locking plates 11, and then screwing the locking plates and the thread holes 4 in the figure 1 firmly. At this time, two semicircular lock holes 13 at the end of the two symmetrical lock plates 11 of fig. 6 are used for locking the shaft groove 10 of fig. 5.

And step five, finally, the assembled electric lead screw 6 is placed in a giant open slot 20 of the trunk line T-shaped connector 18 (the trunk line T-shaped connector 18 in fig. 10 is an issued patent 2018203556840) of fig. 10, and the electric lead screw 6 in the upper figure is screwed down to complete the whole assembly (see fig. 11 after the whole assembly is completed).

The utility model has the use process that (when the utility model is used for the live-line work of a low-voltage 0.4 KV circuit): in the first operation, when the low-voltage branch conductor needs to perform T-connection on the low-voltage main electrical wire, the conductive screw 6 shown in fig. 11 (described below with reference to fig. 11 of the upper drawing after assembly) is unscrewed and separated from the conductive screw 6 integrally connected with the branch crimp body 1, and then another crimp plate similar to the crimp plate 16 shown in fig. 9 is pressed by using a conventional press bolt to secure the end of the branch conductor in the crimp groove 21 of the branch crimp body 1 (complete pre-uncharged crimping of the branch conductor).

And secondly, unscrewing the six-edge bolt rod 15 at the top of the crimping plate 16 in advance, then taking down the crimping plate 16, screwing the screw post head (not marked) of a special insulating operating handle into the screw post head at the bottom of the branch crimping body 1 in advance, then holding the insulating operating handle with a hand to lift the attached drawing 11, enabling the wire pressing groove 22 of the branch crimping body 1 to be in top contact with a T joint (not marked) of the electrified main wire, then covering the separated crimping plate 16 with an insulating clamp right above the T joint of the main wire, then restoring the screwed six-edge bolt rod 15 with the insulating clamp, and then re-fastening the restored six-edge bolt rod 15 with an insulating wrench tool to complete safe and convenient T connection with the main wire in an electrified state.

When the device and other devices connected and branched lines in the figure 11 are operated on the line for a long time, and need to be overhauled irregularly or damaged naturally or have sudden failure and need to be maintained or replaced, at this time, a screw post head (not marked) of a special insulating operating handle can be used for being screwed into a screw hole (not marked) in advance of the screw post head at the bottom of the branched pressure joint body 1, then the special insulating operating handle is held by one hand, the conductive screw 6 can be slightly unscrewed under a charged state by the other hand and an insulating wrench is used by the other hand, and then the branched pressure joint body 1 connected with the conductive screw 6 into a whole is separated and withdrawn from the charged main trunk line T joint body 18, so that safe overhaul or replacement can be carried out.

When the special insulating operating rod shown in the figure 6 is used for live-line work of a high-voltage line (referring to the fact that the special insulating operating rod shown in the figure 6 runs in a high-voltage 10-KV line), firstly, a screw head column at the top of a special insulating operating rod is screwed into a screw head screwing hole (not marked) at the bottom of the figure 11 in advance, then, a deep socket sleeve head of a direct-current electric wrench at the top of another special insulating operating rod is sleeved on a conductive screw 6 shown in the figure 11, then, a hand presses a reverse key of a wireless remote controller, at the moment, a receiver at the top of the special insulating operating rod receives a reverse signal to start a motor of the direct-current electric wrench, the motor of the direct-current electric wrench is started to enable the deep socket sleeve head of the direct-current electric wrench to unscrew the conductive screw 6, when the conductive screw 6 is unscrewed, the special insulating operating rod screwed into the screw head at the bottom of the figure 11 can separate the conductive screw 6 into a huge 20, after the special insulating operating rod is moved downwards for a certain distance, the hook at the top of the other hanging rod at the side part of the screw head column of the special insulating operating rod is hooked on the main trunk line of the phase, at the moment, the conductive screw 6 and the T-shaped connector 18 of the main trunk line of the charged body form an obvious disconnection point (the pictures used when the special insulating operating rod, the wireless remote controller and the direct current electric wrench are operated on site are uploaded when needed), and at the moment, the equipment with faults at the lower end of the branch line can be safely and conveniently overhauled or replaced.

Claims

1. Rural power grids transform general loose joint of upgrading engineering, have branch crimping body (1) and electric conductance lead screw (6), characterized by: a retractable plate groove (2) is arranged in the middle of one side of the branch compression joint body (1), a sliding hole (3) is arranged in the middle of the retractable plate groove (2), and thread holes (4) are arranged at two side ends of the sliding hole (3).

2. The rural power grid transformation and upgrading engineering universal movable connection as claimed in claim 1, wherein: and a reinforced electric wire guide sleeve (5) is arranged in the slide hole (3).

3. The rural power grid transformation and upgrading engineering universal movable connection as claimed in claim 2, wherein: a conductive lead screw (6) is arranged in the reinforcing electric wire guide sleeve (5), one end of the conductive lead screw (6) is provided with a thin sliding hole (7), and the other end of the conductive lead screw is provided with a thick sliding hole (8).

4. The rural power grid transformation and upgrading engineering universal movable connection as claimed in claim 3, wherein: an anti-falling shaft pin (9) is arranged in the rough sliding hole (8), and a shaft groove (10) is arranged at one end of the anti-falling shaft pin (9).

5. The rural power grid transformation and upgrading engineering universal movable connection as claimed in claim 4, wherein: the shaft groove (10) is externally provided with a lock plate (11), the upper end part of the lock plate (11) is provided with a press bolt hole (12), and the middle part of the lower end is provided with a semicircular lock hole (13).