CN202308909U - Clamping device for live line insulator string replacement - Google Patents

Abstract

A clamping device for a live line insulator string replacement is mainly used to solve the problem that the conventional clamping device is not general, and is characterized in that a clamping frame (1) is inverted trough-shaped, the left and right sides of front and back vertical plates are equipped with longitudinal notches (2)respectively, and the left and right sides of a top plate are connected with telescopic screw sleeves (3) longitudinally; the telescopic screw sleeves (3) are connected with main telescopic screw rods (4) via screw threads, and ratchet wrenches are arranged on the outsides of the lower ends of the main telescopic screw rods (4); auxiliary telescopic screw rods (6) are connected in the lower ends of the main telescopic screw rods (4) via screw threads, and lifting hooks (7) are arranged below the auxiliary telescopic screw rods (6). The clamping device for the live line insulator string replacement has the characteristics of being strong in generality and being safe and reliable.

Description

Insulation string clamp for live replacement

technical field

The utility model relates to a tool used for electric power maintenance, in particular to a jig for replacing insulating strings with electricity.

Background technique

In the field of power maintenance, live replacement of insulators is the main work content in live work on power transmission lines. The clamps used to replace the straight-line string insulators are based on the different structure types of the cross-arms of the towers. Although the cross-arms of the line towers with the same voltage level are quite different, different cross-arm structures must be prepared for different types. The cross-arm fixture replaces the straight-line string insulator. This will cause great difficulty in matching tools, and it is also uneconomical.

Contents of the invention

In order to solve the problem that the existing clamps are not universal. The utility model provides a fixture for replacing insulating strings with electricity. The clamp for replacing insulating strings with electricity has the characteristics of high versatility, safety and reliability.

The technical scheme of the utility model is: the clamp for replacing the insulating series with electricity includes a clamp frame. The card frame is in the shape of an inverted groove, and there are longitudinal gaps on the left and right sides of the front and rear vertical plates, respectively. The top plates on the left and right sides are longitudinally connected with telescopic screw sleeves. The outer ratchet wrench of the lower end is threadedly connected with a secondary telescopic screw rod under the main telescopic screw rod, and a suspension hook is arranged under the secondary telescopic screw rod.

The utility model has the following beneficial effects: the live replacement insulating string jig adopts an inverted groove shape, the left and right sides of the front and rear vertical plates are respectively provided with longitudinal gaps, and the top plates of the left and right sides are longitudinally connected with telescopic screw sleeves , the telescopic screw sleeve is threadedly connected with the main telescopic screw, the lower end of the main telescopic screw is an external ratchet wrench, the inner part of the main telescopic screw is connected with a secondary telescopic screw, and there is a hook structure under the secondary telescopic screw. The gap holder is on the cross arm of the tower, and then the ratchet wrench is rotated to drive the main telescopic screw rod and the auxiliary telescopic screw rod to rotate, and the linear insulator string is lifted or lowered by the hook rope, so as to realize live replacement of insulators on the cross arm of different structures. Live working on electric lines can further expand the scope of application, reduce the risk of work, enhance safety, and the structure and operation are simple. Therefore, the clamp for replacing the insulating string with electricity has the characteristics of strong versatility, safety and reliability.

Description of drawings:

Accompanying drawing 1 is the utility model top view sectional structure schematic diagram;

Accompanying drawing 2 is the bottom view of Fig. 1.

Among the figure 1-card frame, 2-notch, 3-telescopic screw sleeve, 4-main telescopic screw rod, 5-ratchet wrench, 6-secondary telescopic screw rod, 7-hook.

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in the accompanying drawings, the live replacement insulating string clamp includes a clamp 1 . The card frame 1 is in the shape of an inverted groove, and there are longitudinal gaps 2 on the left and right sides of the front and rear vertical plates respectively. Connected with telescopic screw sleeve 3, telescopic screw sleeve 3 is threadedly connected with main telescopic screw rod 4, the outer ratchet wrench 5 at the lower end of main telescopic screw rod 4, and secondary telescopic screw rod 6 is threadedly connected with main telescopic screw rod 4. The threads on the main telescopic screw mandrel 4 and the auxiliary telescopic screw mandrel 6 make the suspension hook 7 move up and down, lift or lower the insulating string, and the auxiliary telescopic screw mandrel 6 has a suspension hook 7, and the suspension hook 7 is used to connect the transmission rope.

Operation process:

First, two operators carry the transfer rope to the tower and hang the transfer rope at the cross arm. The ground operator passes the live replacement insulation string jig and insulating boom to the tower; the two operators on the tower cooperate to The jig for replacing the insulator string with electricity is pressed on the U screw of the cross-arm bolt through the gap 2, the hook 7 is hooked on the wires on both sides of the insulator string, and the ratchet wrench 5 is moved to pass through the top of the main telescopic screw rod 4 and the auxiliary telescopic screw rod 6. Move and tighten the screw rod to transfer the load of the wire to the live replacement insulation string fixture; two operators use the operating rod to remove the insulator and the spring pin on the bowl head from the tower to the horizontal position of the wire, and take off the bowl head. ; One operator moves the ratchet wrench 5, moves down the wire by 10-15 cm through the downward movement of the main telescopic screw rod 4 and the secondary telescopic screw rod 6, and the other operator binds the insulator string to the transmission rope, and the ground The upper operator binds the new insulator string to the transmission rope, and cooperates with an operator on the tower to remove the spring pin to transfer the old insulator string to the ground, and the new insulator to the tower to complete the operation of replacing the insulator string with power on.

Claims (1)

1. A fixture for replacing insulating strings with electricity, including a card holder (1), characterized in that: the card holder (1) is in the shape of an inverted groove, and there are longitudinal gaps (2) on the left and right sides of the front and rear vertical plates, respectively. The top plates on both sides are longitudinally connected with telescopic screw sleeves (3), and the telescopic screw sleeves (3) are threadedly connected with main telescopic screw rods (4). The outer ratchet wrench (5) at the lower end of the main telescopic screw rods (4) Under the screw mandrel (4), there is a secondary telescopic screw mandrel (6) that is threadedly connected, and a suspension hook (7) is arranged under the secondary telescopic screw mandrel (6).

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