Paying-off device
Technical Field
The utility model relates to an electric power unit technical field especially relates to a pay-off.
Background
When the wire is fixed on the vase, the binding wire (bare aluminum wire) is needed to be used, when the power distribution is in power failure construction, the operator can freely unfold the binding wire without considering the angle and length problems of unfolding, and in the environment of live working, the wire and the equipment on the rod are very many, the distance is also very close, because of live operation, the binding wire can never unfold for too long, because of being too close to the distance with the grounding body and the different electrified bodies, the discharging phenomenon is very easily generated, and the safety event is triggered. The technical specification of the non-power-off operation of the national network company clearly indicates that the unfolding length of the binding wire for the live working is not more than 0.1 m.
Disclosure of Invention
To above-mentioned live working in, can not open up the problem of putting the overlength when using the fixed wire of ligature, the utility model provides a security is high, is convenient for open up the pay-off of putting ligature.
In order to achieve the above object, the utility model provides a following technical scheme: a pay-off device comprises an insulation box, wherein a rotatable central shaft is arranged in the insulation box, a placing cavity is enclosed between the central shaft and the insulation box, a fixing part is arranged on the central shaft, and a pay-off hole is formed in the insulation box. Fix the one end of ligature at the fixed part of center pin, then twine on the center pin, the other end stretches out from the unwrapping wire hole, can rotate the center pin through pulling ligature during the use and realize the unwrapping wire, and insulating box can play insulation protection, prevents that ligature and electrified body and grounding body from producing the electric discharge.
Preferably, the center of the insulation box is provided with a through hole, the insulation box is rotatably connected with the central shaft through the through hole, the central shaft is positioned with the end face of the insulation box through a shaft shoulder of the central shaft, and the central shaft and the insulation box are in clearance fit. The operating personnel can press the center shaft, stop its rotation and prevent it from continuing unwrapping wire, and the security is higher to simple structure, easy production.
Preferably, a center hole is arranged through the center of the central shaft, and a lug is arranged on the end face of the central shaft. The centre bore is convenient for operating personnel to carry, and the lug can increase the frictional force of center pin and operating personnel hand, controls more easily.
Preferably, the fixed part includes the bar hole in the center pin, and the outer disc of center pin is passed to the one end in bar hole, and the other end in bar hole is sealed, and the fixed part still includes the screw hole, and the one end of screw hole is passed the centre bore surface of center pin, and other end intercommunication bar hole installs fixing bolt in the screw hole. One end of the binding wire is stretched into the bar-shaped hole, the fixing bolt is installed into the threaded hole from the central hole, and the binding wire in the bar-shaped hole is tightly fixed.
Preferably, two parallel rollers are arranged in the insulating box, and the two rollers are arranged on one side of the wire releasing hole in the insulating box. The friction when the binding wire is pulled out from the paying-off hole is reduced.
Preferably, the side plates of the insulation box protrude outwards, the protrusions of the insulation box form wire placing parts in the insulation box, and the wire placing holes and the rolling shafts are arranged in the wire placing parts. Prevent that the roller bearing from occupying and placing the chamber space, influence the storage capacity of ligature.
Preferably, the insulating box comprises a bottom plate and side plates, the bottom plate and the side plates are integrally formed, and the top of each side plate is connected with the top plate of the placement cavity and the top plate of the pay-off part. The placing cavity and the wire placing part are separately provided with the top plate, so that the disassembly and the assembly of the wire placing part can be reduced under the condition of conveniently replacing the central shaft, and the protection of the wire placing part is improved.
The utility model discloses following beneficial effect has: the insulation box can isolate the binding wire from an external charged body and a grounding body, so that the safety of operators is ensured; the paying-off device is convenient to carry and easy to operate, and can control to stop paying-off in time; simple structure, low cost and suitability for large-scale production.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a cross-sectional view of an embodiment of the present invention.
Fig. 3 is another cross-sectional view of an embodiment of the present invention.
In the figure, 1, a placing cavity top plate, 2, a central shaft, 3, a side plate, 4, a bump, 5, a central hole, 6, a bottom plate, 7, a rolling shaft, 8, a wire releasing hole, 9, a strip-shaped hole, 10, a threaded hole, 11, a wire releasing part, 12, an insulating box, 14 and a wire releasing part top plate.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, 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, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1-3, a paying-off device comprises an insulation box 12, the insulation box 12 comprises a bottom plate 6 and a side plate 3 which are integrally formed, the side plate 3 protrudes outwards, the protrusion is located inside to form a paying-off part 11, the top of the side plate 3 is connected with a paying-off part top plate 14 and a circular cavity top plate 1, the cavity top plate 1 is screwed and installed on the side plate 3 through threads, a through hole penetrating through the whole insulation box 12 is formed along the central line of the cavity top plate 14, a rotatable central shaft 2 is installed in the through hole, the central shaft 2 is positioned with the through hole through a shaft shoulder, and the central shaft 2 and the through hole are in clearance fit and are convenient to rotate. The center of center pin 2 is provided with centre bore 5, and the operating personnel of being convenient for carries and snatchs, and the terminal surface of center pin 2 is provided with along 2 length direction's of center pin lug 4, can increase the friction of hand and center pin 2, makes things convenient for the operating personnel to operate. Inward strip hole 9 has been seted up to the excircle face of center pin 2, and 2 excircle faces of center pin are passed to the one end in strip hole 9, and the other end seals, and center pin 2's centre bore 5 is provided with screw hole 10, and screw hole 10 intercommunication strip hole 9 is close to the position of blind end, installs fixing bolt in the screw hole 10. Enclose into the annular between center pin 2 and the insulating box 12 and place the chamber for the winding is placed the ligature, places chamber and unwrapping wire portion 11 intercommunication, and curb plate 3 is provided with unwrapping wire hole 8 in the position of unwrapping wire portion 11, and one side that is located insulating box 12 in unwrapping wire hole 8 is provided with two parallel roller bearings 7, and the direction of two roller bearings 7 parallel center pin 2 is used for reducing the frictional force when the unwrapping wire pulls out unwrapping wire hole 8.
The utility model discloses an operating principle does, stretches into the bar hole 9 of center pin 2 with the one end of ligature, then from 5 screw in fixing bolt in center hole, and the ligature is fixed to the roof pressure, twines the ligature to center pin 2 afterwards on, puts into the through-hole of insulating box 12 with center pin 2 in, makes the other end of ligature pass between two roller bearings 7, draws out insulating box 12 from unwrapping wire hole 8, screws and places chamber roof 1. When the binding wire unwinding device is used, the binding wire outside the wire unwinding hole 8 is pulled, the central shaft 2 rotates to discharge the binding wire, the central shaft 2 is pressed by hands to stop rotating to stop unwinding, and the binding wire unwinding device is simple to operate and high in reliability.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and substance of the present invention, any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.