CN213989897U - General closed fixture for replacing single insulator - Google Patents

Abstract

The utility model discloses a universal closed fixture for replacing single-chip insulators, which belongs to the technical field of closed fixtures, and particularly relates to a universal closed fixture for replacing single-chip insulators, which comprises insulators which are connected in sequence, wherein two adjacent insulators are fixedly connected through a bolt, a fixture component is connected on an insulating head of the insulator, the fixture component comprises two upper fixtures and two lower fixtures, the two upper fixtures are positioned at the rear sides of the two lower fixtures, the two upper fixtures are connected through a first bolt, the two lower fixtures are connected through a second bolt, the upper fixtures are connected with the lower fixtures through a third bolt, the upper end part and the lower end part of the fixture component are both connected with a lead screw connector, a lead screw nut pair with a ratchet wrench is connected between the two lead screw connectors, a lead screw is arranged in the lead screw nut pair with the ratchet wrench, a lead screw is arranged in the lead screw, and the upper end part and the lower end part of the lead screw are both connected with the lead screw connector, the insulator is convenient to detach under the combined action of the screw-nut pair, the fixture assembly and the handle.

Description

General closed fixture for replacing single insulator

Technical Field

The utility model relates to a closed fixture technical field specifically is a change general closed fixture of monolithic insulator.

Background

The transmission line is wide in point and multiple, the number of lines maintained by the existing hectorite power supply bureau is 122, the outer diameter of a bowl of an insulator is different due to different purchasing time and purchasing manufacturers of glass insulators used by each line, for example, the outer diameter of a bowl of a 7-ton glass insulator is 25cm, 26.5cm, 27cm and the like, especially, the outer diameter of the bowl of the glass insulator used by some old lines can have insulator sheets with various sizes on the same insulator string, when the insulator is low in value or is self-exploded, a maintainer generally adopts a double hook, a large knife clamp, a closed clamp or a hoist to replace, the closed clamp is most convenient and quick to replace by using the above tools, but because the sizes of the bowls of the glass insulators with the same tonnage are different, and the closed clamp cannot be randomly adjusted according to the sizes of the insulators, a plurality of clamps need to be prepared before each time of maintenance, especially, a plurality of clamps need to be carried by some towers located on high mountains, which brings great inconvenience to the maintenance work, increase staff's burden, reduce work efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a change general closed fixture of monolithic insulator to solve the inconvenient problem of insulator dismantlement that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a universal closed fixture for replacing a single insulator comprises insulators which are connected in sequence, every two adjacent insulators are fixedly connected through a bolt, a fixture assembly is connected to an insulating head of each insulator, each fixture assembly comprises two upper fixtures and two lower fixtures, the two upper fixtures are located on the rear sides of the two lower fixtures, the two upper fixtures are in threaded connection through first bolts, the two lower fixtures are in threaded connection through second bolts, the upper fixtures and the lower fixtures are in threaded connection through third bolts, lead screw connectors are connected to the upper end portion and the lower end portion of each fixture assembly, a lead screw nut pair with a ratchet wrench is connected between the two lead screw connectors, a lead screw is arranged inside the lead screw nut pair with the ratchet wrench, lead screw connectors are connected to the upper end portion and the lower end portion of each lead screw, lead screw sleeves are connected to the outer walls of the two lead screws, and a handle is connected to the outer portion of each lead screw, the handle is connected with the lead screw and is provided with a pawl, one side of the pawl, which deviates from the lead screw, is connected with a ratchet wheel, one side of the ratchet wheel, which deviates from the pawl, is connected with a buckle, one side of the buckle, which deviates from the ratchet wheel, is connected with a spring, and the pawl, the ratchet wheel, the buckle and the spring are all positioned inside the handle, which is close to the lead screw.

Preferably, the screw rod can be extended and retracted by rotating the handle in the screw rod nut pair with the ratchet wrench.

Preferably, the outer sides of the upper clamp and the lower clamp are both connected with insulating rubber sleeves.

Preferably, the outer surface of the handle is provided with friction lines.

Compared with the prior art, the beneficial effects of the utility model are that: the insulator is convenient to detach under the combined action of the screw-nut pair, the fixture assembly and the handle.

Drawings

FIG. 1 is a schematic view of the present invention from the bottom;

FIG. 2 is a schematic view of the internal structure of the fixture assembly of the present invention;

FIG. 3 is a schematic view of the internal structure of the screw-nut pair of the present invention;

fig. 4 is a schematic front structural view of the present invention.

In the figure: 1 insulator, 2 bolts, 3 screw nut pairs with ratchet wrenches, 4 upper clamps, 5 first bolts, 6 lower clamps, 7 second bolts, 8 third bolts, 9 screw rod connectors, 10 screw rods, 11 screw rod sleeves, 12 pawls, 13 ratchets, 14 buckles, 15 handles and 16 springs.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-4, the present invention provides a technical solution: a universal closed fixture for replacing a single insulator comprises insulators 1 which are connected in sequence, every two adjacent insulators 1 are fixedly connected through a bolt 2, a fixture assembly is connected onto an insulating head of each insulator 1, each fixture assembly comprises two upper fixtures 4 and two lower fixtures 6, the two upper fixtures 4 are located on the rear sides of the two lower fixtures 6, the two upper fixtures 4 are in threaded connection through first bolts 5, the two lower fixtures 6 are in threaded connection through second bolts 7, the upper fixtures 4 are in threaded connection with the lower fixtures 6 through third bolts 8, lead screw connectors 9 are connected to the upper end portions and the lower end portions of the fixture assemblies, a lead screw nut pair 3 with a ratchet wrench is connected between the two lead screw connectors 9, a lead screw 10 is arranged inside the lead screw nut pair 3 with the ratchet wrench, and the upper end portion and the lower end portion of the lead screw 10 are connected with lead screw connectors 9, two all be connected with lead screw cover 11 on the lead screw 10 outer wall, lead screw 10 external connection has handle 15, pawl 12 is installed with lead screw 10 junction to handle 15, one side that pawl 12 deviates from lead screw 10 is connected with ratchet 13, one side that ratchet 13 deviates from pawl 12 is connected with buckle 14, one side that buckle 14 deviates from ratchet 13 is connected with spring 16, pawl 12, ratchet 13, buckle 14 and spring 16 all are located the inside that handle 15 is close to lead screw 10.

The screw rod 10 can be extended and retracted by rotating the handle 15 in the screw rod nut pair 3 with the ratchet wrench, the outer sides of the upper clamp 4 and the lower clamp 6 are both connected with an insulating rubber sleeve, and friction grains are arranged on the outer surface of the handle 15.

The working principle is as follows: the insulator damage device comprises a first insulator 1, an upper fixture 4 and a lower fixture 6 are mounted on an insulating head in front of and behind the damaged insulator 1, a third bolt 8 is screwed down to enable a fixture component to firmly clamp the insulating head, a screw nut pair 3 with a ratchet wrench is mounted between the two fixture components, a handle 15 is rotated clockwise by two hands to tighten the peripheral insulator 1, then a plug pin 2 can be taken down, the damaged insulator 1 is taken out, a new insulator 1 is replaced, the plug pin 2 is inserted again, the fixture component and the screw nut pair 3 with the ratchet wrench are disassembled, and operation can be completed.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a change general closed fixture of monolithic insulator, includes insulator (1) that connects gradually, its characterized in that: the two adjacent insulators (1) are fixedly connected through a bolt (2), a clamp assembly is connected to an insulating head of each insulator (1), each clamp assembly comprises two upper clamps (4) and two lower clamps (6), the two upper clamps (4) are located on the rear sides of the two lower clamps (6), the two upper clamps (4) are connected through first bolts (5) in a screwed mode, the two lower clamps (6) are connected through second bolts (7) in a screwed mode, the upper clamps (4) are connected with the lower clamps (6) through third bolts (8) in a screwed mode, the upper end portion and the lower end portion of each clamp assembly are connected with screw rod connectors (9), a screw rod nut pair (3) with a ratchet wrench is connected between the two screw rod connectors (9), a screw rod (10) is arranged inside the screw rod nut pair (3) with the ratchet wrench, and the upper end portion and the lower end portion of each screw rod (10) are connected with screw rod connectors (9), two all be connected with lead screw cover (11) on lead screw (10) outer wall, lead screw (10) external connection has handle (15), pawl (12) are installed with lead screw (10) junction in handle (15), one side that pawl (12) deviate from lead screw (10) is connected with ratchet (13), one side that ratchet (13) deviate from pawl (12) is connected with buckle (14), one side that buckle (14) deviate from ratchet (13) is connected with spring (16), pawl (12), ratchet (13), buckle (14) and spring (16) all are located handle (15) and are close to the inside of lead screw (10).

2. A universal closed fixture for single-piece insulator replacement as set forth in claim 1, wherein: the screw rod (10) can be extended and retracted by rotating the handle (15) in the screw rod nut pair (3) with the ratchet wrench.

3. A universal closed fixture for single-piece insulator replacement as set forth in claim 1, wherein: and the outer sides of the upper clamping apparatus (4) and the lower clamping apparatus (6) are both connected with insulating rubber sleeves.

4. A universal closed fixture for single-piece insulator replacement as set forth in claim 1, wherein: the outer surface of the handle (15) is provided with friction lines.

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