CN213906110U - High-strength arc extinction pulley - Google Patents

Abstract

The utility model relates to a power grid maintenance equipment technical field discloses a high strength arc extinction coaster, including lifting hook, slider, lift and hang piece and loose pulley assembly, the lifting hook includes coupler body and hook seat, the inboard of coupler body has broad contact surface, slider movable mounting be in the end of coupler body, the slider position can reciprocate spacingly, just the hook seat correspond can with the slider lower extreme is connected, lift hang with the top of slider is connected, loose pulley assembly electrically conducts and connects the hook seat downside. The utility model discloses a high strength arc extinction coaster convenient to use, easy operation effectively strengthen its ability of overflowing when contacting with no-load wire, can firmly articulate no-load wire moreover, are difficult to produce the pine and take off.

Description

High-strength arc extinction pulley

Technical Field

The utility model relates to a power grid maintenance of equipment technical field especially relates to a high strength arc extinction coaster.

Background

At present, 220kV and below voltage class substation equipotential operation project, mainly for the equipment maintenance in the substation, and the station uses the equipotential operation method to carry on the no-load line break, lap joint operation, generally when using the arc extinction rope to break and connect the no-load line, must use the arc extinction pulley to support the application at the same time, and the present many arc extinction pulleys on the market are mostly of single structure, with the no-load line small overcurrent contact area, and the anti-drop mechanism is not firm enough, used for the anti-drop sheetmetal too weak, easy to occur deformation damage, break, connect the no-load line in the process of easily causing the high strength arc extinction pulley to drop, occur damage the high strength arc extinction pulley in the substation electrical equipment, injure the operating personnel below or because the high strength arc extinction pulley drops, the lead wire loses control, lead to the interphase or relative short circuit accident, endanger the personnel safety of the operating personnel, it is very inconvenient for the worker.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a high strength arc extinction coaster, its convenient operation has with the bigger area of contact of unloaded wire, can effectively prevent the pine moreover and take off.

The utility model provides a high strength arc extinction coaster, includes lifting hook, slider, carries and hangs piece and loose pulley assembly, the lifting hook includes coupler body and hook seat, the inboard of coupler body has wide contact surface, slider movable mounting be in the end of coupler body, the slider position can reciprocate spacingly, just the hook seat correspond can with the slider lower extreme is connected, carry hang the piece with the top of slider is connected, loose pulley assembly electrically conducts the connection and is in the hook seat downside.

And a concave hole matched with the lower end of the sliding block is formed in the hook seat.

The lower end of the sliding block is embedded with a magnet, and magnetic metal is arranged at the bottom of the concave hole.

The end of the hook seat is provided with a sliding seat used for slidably mounting the sliding block, the sliding seat is provided with a sliding groove extending longitudinally, and a cover plate corresponding to the sliding groove of the sliding seat is arranged on the sliding seat.

The lower end of the cover plate is provided with a guide part which extends obliquely downwards and back to the sliding seat.

The slider is provided with the spacing groove that extends from top to bottom, be provided with on the slide correspondingly pass the spacer pin in spacing groove.

The top of the pulley assembly is rotatably connected to the bottom of the lifting hook through an overflowing bolt.

And reinforcing ribs are arranged on the inner side wall surface of the lifting hook.

The lifting piece comprises a lifting ring.

The lifting hook and the pulley component are made of copper, and the sliding block and the lifting piece are made of aluminum alloy.

The utility model has the advantages that: the utility model discloses a high strength arc extinction coaster convenient to use, easy operation effectively strengthen its ability of overflowing when contacting with no-load wire, can firmly articulate no-load wire moreover, are difficult to produce the pine and take off.

Drawings

Fig. 1 is a side view of a mounting structure of an embodiment of the present invention;

fig. 2 is a front view of the mounting structure of the embodiment of fig. 1 with the slider moved up.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are used in a generic sense, e.g., 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. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, a high-strength arc extinguishing tackle according to a preferred embodiment of the present invention includes a hook 1, a slider 2, a lifting member 3 and a pulley assembly 4, the hook 1 includes a hook body 17 on the upper portion thereof and a hook seat 18 on the lower portion thereof, the inner side of the hook body 17 has a conductive wide contact surface 11, the slider 2 is movably mounted on the end of the hook body 17, the slider 2 can move up and down in a position limited manner, the hook seat 18 can be correspondingly connected with the lower end of the slider 2, the lifting member 3 is connected with the top end of the slider 2, the pulley assembly 4 is conductively connected to the lower side of the hook seat 18, the lifting member 3 can be a ring-shaped, hook-shaped or other-shaped structural member, the slider 2 can be mounted on the hook 1 through sliding connections such as sliding grooves, clamping rails, etc., that the end or tip of the hook body 17 is provided with a sliding groove, The structure of clamping groove, clamping rail, etc. is connected with the sliding block 2 in a sliding way, meanwhile, the lifting hook 1 can realize the limit of the up-and-down movement of the sliding block 2 through the limit clamping part on the sliding block 2, when the sliding block 2 slides upwards to a corresponding position, the limit is realized, when the sliding block 2 slides downwards to the bottom, the limit is correspondingly blocked by the hook seat 18, so that the opening of the lifting hook 1 is blocked by the sliding block 2, and the sliding block 2 can keep the normal state downwards and can not be opened from the directions other than upwards through the modes of gravity action, spring support, magnetic attraction fixation, etc., at least the lifting hook 1 and the pulley component 4 are made of conductive metal.

The operation method of the high-strength arc extinguishing tackle comprises the following steps that an operator jacks up the lifting piece 3 on the ground by using an insulating telescopic rod, the lifting piece 3 drives the sliding block 2 to slide upwards until the sliding block 2 is limited by the lifting hook 1, so that the lifting hook 1 is driven to ascend, the lifting hook 1 is hung on a wire by passing the wire through an opening of the lifting hook 1, namely between a hook body 17 and a hook seat 18, then the insulating telescopic rod moves downwards to leave the lifting piece 3, the sliding block 2 automatically slides downwards and shields the opening of the lifting hook 1, the pulley assembly 4 is wound with an arc extinguishing rope, the lifting hook 1 is abutted against the wire through the wide contact surface 11, so that the conductive contact area is increased, the overcurrent capacity is enhanced, the current conduction from the wire to the arc extinguishing rope is realized, the wire cannot be pushed away from the hook due to the fact that the sliding block 2 can only slide upwards to open the opening of the lifting hook 1, thereby the high-strength arc extinction pulley is firmly hung on the electric wire or the conducting wire, and the operation is convenient and simple.

Referring to fig. 2, the hook seat 18 is provided with a concave hole 13 matching the lower end of the slider 2, and when the slider 2 slides to the bottom, the lower end of the slider 2 can be inserted into the concave hole 13, so as to further limit the degree of freedom of the lower end of the slider 2, thereby more effectively preventing the electric wire or the lead from coming off during operation.

Referring to fig. 1 and 2, a magnet 21 is embedded in the lower end of the slider 2, a magnetic metal 14 is disposed at the bottom of the concave hole 13, when the slider 2 is placed in the concave hole 13, the magnet 21 and the magnetic metal 14 attract each other, so that the position of the slider 2 is locked by magnetic force, the magnet 21 may be a magnet or a magnet, the magnetic metal 14 may be iron, iron alloy, cobalt, or nickel, the magnetic metal 14 is in a metal sheet shape and is fastened to the bottom of the concave hole 13 by an interference fit connection manner or a screw or bolt connection manner, if the concave hole 13 is a through hole structure, the magnetic metal 14 may be directly attached to the lower end of the hook 1 and fastened by a screw, if the concave hole 13 is a blind hole structure, the magnetic metal 14 may be embedded into the hook 1 from the front side thereof and may be fastened by a horizontal or vertical screw or bolt, in addition, the slider 2 may be connected to the hook 1 through an elastic member such as a spring or a compression spring at an upper portion thereof, and the slider 2 may be elastically biased downward with respect to the hook 1 by the elastic member, so that the slider 2 is locked without any other external force.

Referring to fig. 1 and 2, the end of the hook seat 1 is provided with a slide seat 12 for slidably mounting the slide block 2, the slide seat 12 is provided with a sliding groove which is matched with the longitudinal extension of the slide block 2, the slide seat 12 is provided with a cover plate 5 corresponding to the sliding groove of the slide seat 12, the cover plate 5 covers the slide block 2 after being placed in the sliding groove of the slide seat 12 to limit the slide block 2 to only slide up and down, and the cover plate 5 is fastened and connected with the slide seat 12 through bolts at two sides.

As shown in fig. 1 and 2, the lower end of the cover plate 5 is provided with a guide portion 51 extending obliquely downward and away from the sliding base 12, and after the slider 2 slides upward to open the opening of the hook 1, the lower side of the guide portion 51 can be guided into the hook 1 when contacting with a wire or an electric wire from top to bottom during installation, so that the operation of an operator on the ground through a telescopic rod is reduced.

Referring to fig. 1 and 2, the slider 2 is provided with a limiting groove 22 extending from top to bottom, the sliding base 12 is provided with a limiting pin 15 correspondingly penetrating through the limiting groove 22, the limiting pin 15 is horizontally arranged in the sliding groove of the sliding base 12, the limiting pin 15 and the upper and lower ends of the limiting groove 22 are respectively limited in the abutting process, the upper and lower sliding ranges of the slider 2 are further provided, the upper part and the lower part of the slider 2 can be respectively provided with a horizontally convex bulge, so that the slider 2 can be clamped with the sliding base 12 along with the up and down sliding of the slider 2, and the limitation of the upper and lower sliding ranges can be realized.

Referring to fig. 1 and 2, the top of the pulley assembly 4 is rotatably connected to the bottom of the hook 1 through an overcurrent bolt 41, the pulley assembly 4 can be horizontally rotated and adjusted according to the position of an arc extinguishing rope hung on a pulley, so that the operation is more convenient, and the overcurrent bolt 41 is made of a conductive metal material, so that the hook 1 and the pulley assembly 4 efficiently pass through current.

Referring to fig. 1 and 2, the inner side wall surface of the lifting hook 1 is provided with two reinforcing ribs 16, and the two reinforcing ribs 16 are preferably distributed on two sides of the inner lower part of the lifting hook 1 to increase the structural strength of the joint of the lifting hook 1 and the pulley assembly 4.

As shown in fig. 2, the lifting member 3 includes a hanging ring, the lower end of the lifting member 3 is clamped with the upper end of the sliding block 2 and is fastened and connected by a bolt, the hanging ring is conveniently and correspondingly lifted by the telescopic rod, the hanging ring is not loosened even if the lifting member is shaken, and the lifting member 3 is arranged on the sliding block 2 and is easier to operate and open and can simultaneously drive the lifting hook 1.

The lifting hook 1 and the pulley assembly 4 are made of copper, the sliding block 2 and the lifting piece 3 are made of aluminum alloy, so that the lifting hook 1 and the pulley assembly 4 have high electric conductivity and high heat conductivity, the processing and the forming are easy, the structural strength is high, the wide contact surface 11 can be formed by transversely extending a copper hook-shaped part with a wide upper end of the lifting hook 1, the wide contact surface 11 is preferably arc-shaped to be matched with a round outer surface of a lead or an electric wire, the sliding block 2 and the lifting piece 3 are light in weight and high in strength, the structural firmness can be guaranteed while the total mass of the high-strength arc extinction pulley can be reduced, and the lead or the electric wire is not prone to being loosened due to over-deformation.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. A high strength arc extinction coaster which characterized in that: including lifting hook, slider, lifting and hanging piece and loose pulley assembly, the lifting hook includes coupler body and hook seat, the inboard of coupler body has wide contact surface, slider movable mounting be in the end of coupler body, slider position spacing ground can reciprocate, just hook seat correspond can with the slider lower extreme is connected, lifting and hanging piece with the top of slider is connected, loose pulley assembly is electrically conductive to be connected the hook seat downside.

2. A high intensity arc extinguishing tackle as claimed in claim 1, wherein: and a concave hole matched with the lower end of the sliding block is formed in the hook seat.

3. A high intensity arc extinguishing tackle as claimed in claim 2, wherein: the lower end of the sliding block is embedded with a magnet, and magnetic metal is arranged at the bottom of the concave hole.

4. A high intensity arc extinguishing tackle as claimed in claim 1, wherein: the end of the hook seat is provided with a sliding seat used for slidably mounting the sliding block, the sliding seat is provided with a sliding groove extending longitudinally, and a cover plate corresponding to the sliding groove of the sliding seat is arranged on the sliding seat.

5. A high intensity arc extinguishing tackle as claimed in claim 4, wherein: the lower end of the cover plate is provided with a guide part which extends obliquely downwards and back to the sliding seat.

6. A high intensity arc extinguishing tackle as claimed in claim 4, wherein: the slider is provided with the spacing groove that extends from top to bottom, be provided with on the slide correspondingly pass the spacer pin in spacing groove.

7. A high-intensity arc extinguishing tackle as claimed in any one of claims 1 to 6, wherein: the top of the pulley assembly is rotatably connected to the bottom of the lifting hook through an overflowing bolt.

8. A high-intensity arc extinguishing tackle as claimed in any one of claims 1 to 6, wherein: and reinforcing ribs are arranged on the inner side wall surface of the lifting hook.

9. A high-intensity arc extinguishing tackle as claimed in any one of claims 1 to 6, wherein: the lifting piece comprises a lifting ring.

10. A high-intensity arc extinguishing tackle as claimed in any one of claims 1 to 6, wherein: the lifting hook and the pulley component are made of copper, and the sliding block and the lifting piece are made of aluminum alloy.

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