CN206471747U - It is a kind of can charged for replacement insulator arrangement - Google Patents

Abstract

The utility model relates to an insulator device that can be replaced with electricity, which comprises an insulator body. A wire frame is installed on the upper end of the insulator body. The opening is provided with a limit pin for preventing the wire from coming out; the lower end of the insulator body is equipped with a cross-arm clamp, and the cross-arm clamp is provided with a cross-arm slot for clamping the cross-arm, and the cross-arm clamp The groove bottom of the groove is provided with fasteners for fixing the cross-arm bracket on the cross-arm. The utility model has a simple structure, not only can liberate the staff, but also has a special tool for bearing the tension of the wire and serving as the main insulation protection, and can obviously improve the work efficiency and work safety level of the maintenance work.

Description

A live-replaceable insulator device

Technical field:

The utility model relates to a live-replaceable insulator device.

Background technique:

In the 10KV power distribution overhead network, insulators are important equipment for fixing and supporting overhead lines, keeping them insulated from grounding bodies such as cross-arms and poles, and ensuring a sufficient safety distance between charged bodies. In order to meet the increasingly higher requirements of all sectors of society for power supply reliability, insulator damage is mostly replaced by live work. According to different methods of live work in power distribution, live replacement of insulators can be replaced by the small crane method of an insulating bucket arm truck. (hereinafter referred to as the small hanging method), this operation method requires that the height of the wire to be raised is not less than 0.4 meters from the top of the insulator; or the wire is placed on the cross arm through the double insulation of the wire insulation shield and the cross arm shield (hereinafter referred to as the cross arm method), but in practical applications, both methods have certain security risks.

Small hanging method: When the small crane lifts the wire and bears the tension of the wire, the height and horizontal position of the insulating arm of the insulating bucket arm truck will not be adjusted; only by adjusting the position of the working bucket, it can be arranged in a triangle or horizontally after replacing the three-phase wires. When installing the intermediate phase post insulators of overhead distribution line devices, it is difficult for the staff to find a suitable working position; in addition, the regulations stipulate that when lifting the wires, if a single wire suspension device is used, backup protection measures should be taken, and the wires being lifted at this time can only be The sling and hook of the small crane with insulated bucket arm are stressed, and there is no backup protection measure.

Cross-arm method: The working position of the staff is not limited, and there is no need to consider the stability of the wires. Although the cross-arm shield is mainly designed to store live wires, there are only two layers between the grounded iron cross-arm and the live wires. As a shielding measure for auxiliary insulation protection, it has brought many controversies.

Utility model content:

The purpose of this utility model is to provide a live-replaceable insulator device for the above shortcomings, which can not only liberate the staff and have special tools for bearing the tension of the wires and as the main insulation protection, but also can significantly improve the work efficiency of maintenance operations and job safety levels.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an insulator device that can be replaced with electricity, including an insulator body, a lead frame is installed on the upper end of the insulator body, and a lead frame is provided on the lead frame to facilitate the passage of the wire. The wire trough, the notch of the wire trough is provided with a limit pin for preventing the wire from coming out; the lower end of the insulator body is equipped with a cross-arm clamp, and the cross-arm clamp is provided with a clamp for clamping the cross-arm The cross-arm clamping slot, the bottom of the cross-arm clamping slot is provided with fasteners for fixing the cross-arm clamping frame on the cross-arm.

Further, the insulator body is a composite post insulator.

Further, the wire groove is a U-shaped through groove with the notch facing upwards, and the two side walls of the wire groove are respectively coaxially provided with through holes for the passage of the limit bolt, and the inner wall of the through hole is provided with an inner The outer circumferential surface of the limit bolt is provided with an outer thread for cooperating with the inner thread.

Further, a first steel ring is fixedly connected to one end of the limit bolt.

Further, the cross-arm slot is a U-shaped through slot with a horizontal opening, and a screw hole is vertically opened in the middle of the bottom of the cross-arm slot; the fastener is threaded through the screw hole locking bolts.

Further, the slot width of the cross-arm clamping slot is 10mm.

Further, a second steel ring is fixedly connected to the lower end of the locking bolt.

Compared with the prior art, the utility model has the following effects: the utility model is simple in structure, easy to use, and has good flexibility in use. It can effectively improve the work efficiency and safety level of maintenance work.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a schematic diagram of the use state of the embodiment of the utility model.

In the picture:

1-Insulator body; 2-Lead frame; 3-Wire groove; 4-Limiting pin; The second steel ring; 10-wire; 11-cross arm angle iron.

detailed description:

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

As shown in Figure 1-2, the utility model is an insulator device that can be replaced with electricity. The wire groove 3 passed, the notch of the wire groove 3 is provided with a limit pin 4 for preventing the wire from protruding; the lower end of the insulator body 1 is equipped with a cross-arm clamp 5, and a There is a cross-arm clamping slot 6 for clamping the cross-arm, and the bottom of the cross-arm clamping slot 6 is provided with fasteners for fixing the cross-arm clamping frame 5 on the cross-arm.

In this embodiment, considering that the temporary post insulator should have sufficient mechanical and electrical strength during operation, and that the storage, transportation and use links should not be damaged by external mechanical forces, the insulator body 1 has good insulation performance and mechanical Composite post insulator with high strength.

In this embodiment, the wire groove 3 is a U-shaped through groove with the notch facing upwards, and the two side walls of the wire groove 3 are respectively coaxially provided with through holes to facilitate the passage of the stop pin 4. The inner wall of the inner thread is provided with an internal thread, and the outer circumferential surface of the limit bolt 4 is set on the external thread for cooperating with the internal thread. The limit bolt 4 is easy to assemble and disassemble, and the connection is firm; the setting of the limit bolt 4 can prevent the wire from There is no risk of automatic detachment from the wire groove 3 and running wires, while the wires are fixed without binding, which reduces operating time and improves work efficiency and safety at the work site.

In this embodiment, one end of the limit pin 4 is fixedly connected with a first steel ring 7, so that the limit pin 4 can be rotated quickly, and the operation is convenient and the operation efficiency is improved.

In this embodiment, the cross-arm slot 6 is a U-shaped through slot with a horizontal opening, and a screw hole is vertically opened in the middle of the bottom of the cross-arm slot 6; And the locking bolt 8 matched with its thread, when in use, the cross-arm card slot 6 is stuck on the iron cross-arm angle iron, and then locked by the locking bolt 8, the operation is simple, and there will be no swing after fixing, and the firmness better.

In this embodiment, the notch width of the cross-arm clamping slot 6 is 10 mm, which is suitable for most specifications of cross-arm angle irons.

In this embodiment, the lower end of the locking bolt 8 is fixedly connected with a second steel ring 9, which is convenient for manual and quick rotation of the locking bolt 8, which is easy to operate and improves operating efficiency.

In this embodiment, the lead frame 2 and the insulator body 1, and the cross-arm bracket 5 and the insulator body 1 are all welded.

The above descriptions are only preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the patent scope of the present utility model shall fall within the scope of the present utility model.

Claims (7)

1. An insulator device that can be replaced with electricity is characterized in that: it includes an insulator body, a lead frame is installed on the upper end of the insulator body, and the lead frame is provided with a wire groove for the wire to pass through, and the wire groove The notch of the insulator is provided with a limit pin for preventing the wire from coming out; the lower end of the insulator body is equipped with a cross-arm clamping frame, and the cross-arm clamping frame is provided with a cross-arm clamping slot for clamping the cross-arm. The bottom of the card slot is provided with fasteners for fixing the cross-arm card frame on the cross-arm. 2. The live-replaceable insulator device according to claim 1, wherein the insulator body is a composite post insulator. 3. A live-replaceable insulator device according to claim 1, characterized in that: the wire groove is a U-shaped through groove with the notch facing upwards, and the two side walls of the wire groove are coaxially opened with the following: The through hole through which the limit pin passes, the inner wall of the through hole is provided with an internal thread, and the outer circumferential surface of the limit pin is provided with an external thread for cooperating with the internal thread. 4. The live-replaceable insulator device according to claim 3, characterized in that: a first steel ring is fixedly connected to one end of the limit bolt. 5. A live-replaceable insulator device according to claim 1, characterized in that: the cross-arm clamping slot is a U-shaped through-slot arranged horizontally at the notch, and the middle part of the bottom of the cross-arm clamping slot is vertically A screw hole is provided; the fastener is a lock bolt passing through the screw hole and threadedly matched with it. 6 . The live-replaceable insulator device according to claim 5 , wherein the slot width of the cross-arm clamping slot is 10 mm. 7. The live-replaceable insulator device according to claim 5, wherein a second steel ring is fixedly connected to the lower end of the locking bolt.