CN104409892A - Special ground clamp for novel overhead bus bar bridge - Google Patents

Abstract

The invention discloses a new type of special ground wire clamp for high-position busbar bridges, which includes a detachably connected ground wire clamp and an insulation adjustment rod. The ground wire clamp includes a fixed part and a movable part. The end of the conductive plate is provided with a ground wire fixing bolt, and a through hole is opened on the conductive plate of the bus bar; the movable part includes a lower clip, a screw, a polygonal base and a positioning frame, and the positioning frame includes a vertical connecting plate and a horizontal connecting plate; There are screw holes on the connecting plate from top to bottom, the top of the screw is connected to the lower clip, and the end of the screw is connected to the polygonal base; the upper connecting rod of the insulating adjustment rod includes a first insulating rod, and the top of the first insulating rod is connected to the polygonal sleeve The shape of the polygonal sleeve matches the polygonal base, and the upper connecting piece is provided at the end of the first insulating rod; the lower extending rod includes the second insulating rod, and the top end of the second insulating rod is connected with the connecting piece at the end of the first insulating rod. match.

Description

A new type of special grounding clamp for high-position busbar bridges

technical field

The invention relates to the technical field of grounding safety, in particular to a new type of special grounding clamp for high-level bus bridges.

Background technique

The grounding wire is connected to the electrical equipment casing and other parts in a timely manner to lead out unsafe charges or leakage currents generated due to various reasons. During the maintenance process of the transmission line, the ground wire must be connected after the power failure of the line. During the inspection and maintenance of electric equipment, it is necessary to ensure reliable grounding of the equipment. Usually, the clamp connected with the grounding wire is fixed on the conductor part of the grounding equipment. When carrying out the grounding operation of high-level busbars, it is necessary to carry climbing tools to work at high places. If the operator accidentally falls or misoperates during the operation, it will lead to personal injury and violation accidents such as wrongly electrified and connected to the grounding wire.

Contents of the invention

The purpose of the present invention is to provide a new type of special ground wire clamp for high-level bus bridges, which can manually adjust the clamping range of the ground wire clamp according to the different thicknesses of the aluminum bars, so as to meet different requirements and ensure the safety of operation and maintenance personnel. It also effectively saves the time for hanging the grounding wire.

The technical scheme adopted in the present invention is:

A new type of special ground wire clamp for high-level bus bridges, including a detachably connected ground wire clamp and an insulation adjustment rod. The ground wire clamp includes a fixed part and a movable part. The fixed part includes an upper splint and a busbar conductive plate. The upper splint It is vertically connected with the busbar conductive plate, and the end of the busbar conductive plate is provided with a ground wire fixing bolt, and a through hole is opened on the busbar conductive plate from the left end to the right end; the movable part includes the lower clip, the screw, the polygonal base and the positioning frame, The positioning frame includes a vertical connecting plate and a horizontal connecting plate, the right end of the horizontal connecting plate is vertically connected to the end of the vertical connecting plate, the right side wall of the vertical connecting plate is connected with a positioning bolt, and the positioning bolt passes through the through hole and is fixed by a nut ; There are screw holes on the horizontal connecting plate from top to bottom, the screw rod is threadedly connected with the screw hole, the top of the screw rod is connected to the lower clip, and the end of the screw rod is connected to the polygonal base; the insulating adjustment rod includes an upper connecting rod and a lower extension Rod, the upper connecting rod includes a first insulating rod, the top end of the first insulating rod is connected to a polygonal sleeve, the shape of the polygonal sleeve matches the polygonal base, the polygonal sleeve is detachably connected to the polygonal base, and the end of the first insulating rod An upper connecting piece is provided; the lower extending rod includes a second insulating rod, and the top end of the second insulating rod matches the connecting piece at the end of the first insulating rod.

The upper connecting piece is a hollow cylinder, and a limit rod is arranged horizontally inside the hollow cylinder, and the upper part of the hollow cylinder is sleeved on the end of the first insulating rod.

A slot is opened on the top surface of the second insulating rod, the limit rod is arranged in the slot, and the outer diameter of the second insulating rod is smaller than the inner diameter of the upper connecting piece.

The end of the lower extension rod is provided with the same connecting piece as the upper connecting piece at the end of the first insulating rod.

There are multiple extension rods at the lower part.

An upward concave wire groove is arranged on the lower end surface of the upper splint.

There are two positioning bolts.

The invention uses the fixed part and the positioning frame to roughly adjust the grounding wire clamp, so that the grounding wire clamp can clamp the aluminum bar or the bus bar, and then controls the up and down movement of the screw rod through the insulation adjustment rod, thereby controlling the up and down movement of the lower clamping piece to achieve Precisely adjust the grounding wire clamp, and finally make the upper splint and the lower clamp clamp the aluminum bar or busbar for maintenance; further, use the upper connecting piece to connect the upper connecting rod and the lower extension rod, when the staff improperly operate or the parts When the frequency of use is high, the limit rod may be twisted off and the card slot may be deformed, which affects the quick installation and convenient use of the insulation adjustment rod. Therefore, the upper connecting piece can be used for replacement at any time. The device is flexible, and practically, it can not only ensure the safety of the operation and maintenance personnel, but also more effectively save the time for hanging the grounding wire.

Description of drawings

Fig. 1 is the schematic front view of the structure of the ground wire clamp of the present invention;

Fig. 2 is the schematic right view of the structure of the ground wire clamp of the present invention;

Fig. 3 is the structural schematic diagram of the insulating adjusting rod of the present invention;

Fig. 4 is a schematic diagram showing the enlarged structure of part A of the insulating adjusting rod of the present invention.

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention includes a detachably connected grounding wire clamp and an insulation adjustment rod. The grounding wire clamp includes a fixed part and a movable part, and the fixed part includes an upper splint 1 And the busbar conductive plate 2, the upper splint 1 is vertically connected with the busbar conductive plate 2, and the lower end surface of the upper splint 1 is provided with an upwardly concave wire groove 20, and the wire groove 20 is used to clamp the busbar to prevent the busbar from slipping. The end of the busbar conductive plate 2 is provided with a ground wire fixing bolt 11, and the busbar conductive plate 2 is provided with a through hole 8 from the left end to the right end. The movable part includes a lower clip 5, a screw rod 6, a polygonal base 7 and a positioning frame. The positioning frame includes a vertical connecting plate 3 and a horizontal connecting plate 4. The right end of the horizontal connecting plate 4 is vertically connected to the end of the vertical connecting plate 3. Two positioning pins 9 are connected on the right side wall of vertical connecting plate 3, and positioning pin 9 passes through hole 8 and is fixed by nut 10; Offer screw hole 19 from top to bottom on horizontal connecting plate 4, screw rod 6 and The screw holes 19 are threaded, the top of the screw 6 is connected to the lower clip 5 , and the end of the screw 6 is connected to the polygonal base 7 . The insulating adjusting rod includes an upper connecting rod and a lower extension rod, the upper connecting rod includes a first insulating rod 14, the top end of the first insulating rod 14 is connected to a polygonal sleeve 13, and the shape of the polygonal sleeve 13 is similar to that of the polygonal base 7. Matching, the polygonal sleeve 13 is detachably connected with the polygonal base 7, such as clamping. The end of the first insulating rod 14 is provided with an upper connecting piece 16; the upper connecting piece 16 is a hollow cylinder, and a limit rod 17 is arranged horizontally inside the hollow cylinder, and the upper part of the hollow cylinder is sleeved on the first insulating rod. 14 ends. The lower extension rod includes a second insulating rod 15 , and the top end of the second insulating rod 15 is matched with the connector at the end of the first insulating rod 14 . The top surface of the second insulating rod 15 is provided with a locking groove 18 , and the limiting rod 17 is disposed in the locking groove 18 . The outer diameter of the second insulating rod 15 is smaller than the inner diameter of the upper connecting piece 16 . The end of the lower extension rod is provided with the same connecting piece as the upper connecting piece 16 at the end of the first insulating rod 14 . There are multiple extension rods at the lower part.

The working principle of the present invention is specifically described below in conjunction with accompanying drawing:

As shown in Figure 1, first, the staff visually inspects the thickness of the aluminum row or the thickness of the bus bar, and manually adjusts the positioning for the first time. Locate the upper and lower positions of the spacer, and then tighten the nut 10. Because the right side wall of the vertical connection plate 3 of the positioning frame adopts a planar structure, the left side wall of the busbar conductive plate 2 also adopts a planar structure, which can make the vertical connection plate 3 and the busbar conductive plate 2 closely fit together, making it more firm to fix the positioning bracket. Then, the grounding wire is fixed on the grounding wire clamp by the grounding wire fixing bolt 11, which plays the role of conduction, and the current leaked in the work is guided to the earth, so as to avoid the electric shock of the staff and endanger life. Secondly, the polygonal sleeve 13 at the top of the upper connecting rod is sleeved on the polygonal base 7. At this time, the staff can easily raise the grounding wire clamp and set the grounding wire clamp on the equipment that needs to be overhauled. At this time, the ground wire clamp does not firmly clamp the maintenance equipment, so it needs to be finely adjusted again. Before raising the ground wire clamp, the staff needs to visually check the height of the maintenance equipment, and connect the lower extension rod according to the height. As shown in Figure 4, which is an enlarged view of Figure 3A, the upper connecting rod and the lower extension rod are connected together through the upper connecting piece 16, and a limit rod 17 is arranged horizontally inside the upper connecting piece 16, also called "one". The glyph cross bar can be connected conveniently and quickly by adopting this structure, and the operation is convenient. The limit rod 17 can be matched in the draw-in groove 18 that is arranged on the top cylinder wall of the second insulating rod 15, because the insulation adjusting rod is held by the staff to support the whole weight, and the effect of gravity, the limit The rod 17 will not easily fall off from the slot 18, ensuring the effectiveness of use. After the staff installs the insulation adjusting rod, precise adjustment is required. Because the lower clip 5 moves up and down through the action of the screw 6, and the screw 6 needs to be rotated by the action of the insulation adjusting rod, so at this time, the staff passes Manually turn the insulation adjustment rod to make the screw rod 6 rotate, and finally the lower clip 5 can be moved up and down. According to the actual situation, adjust upward or downward until the maintenance equipment can be tightened.

The present invention uses the upper connecting piece 16 to connect the upper connecting rod and the lower extension rod, mainly because the insulation adjusting rod will be worn out during long-term use. It may be twisted off and the card slot 18 will be deformed, which will affect the quick installation and convenient use of the insulating adjustment rod. Therefore, the upper connecting piece 16 can be used for replacement at any time. At the same time, in actual on-site work, it is necessary to carry multiple insulating adjustment rods, in case one is damaged and affects normal maintenance.

Claims (7)

1. a Novel high-level bus bridge Special grounding wire clip, it is characterized in that: comprise the earth connection fixture and insulation adjusting rod that removably connect, described earth connection fixture comprises standing part and movable part, standing part comprises train wheel bridge and bus conductive plate, train wheel bridge is connected with bus conductive plate is vertical, the end of bus conductive plate is provided with ground wire gim peg, and bus conductive plate offers through hole by left side to right side; Movable part comprises lower clamping piece, screw rod, polygon-shaped seat and locating rack, locating rack comprises vertical connecting plate and cross connecting plate, the right-hand member of cross connecting plate vertically connects the end of vertical connecting plate, the right side wall of vertical connecting plate connects pilot pin, and pilot pin is passed through hole and is fixed by nut; Cross connecting plate offers screw from top to bottom, and screw rod is threaded with screw, and the top of screw rod connects lower clamping piece, and the end of screw rod connects polygon-shaped seat; Described insulation adjusting rod comprises top connecting rod and bottom extension rod, top connecting rod comprises the first insulating bar, the top of the first insulating bar connects polygon sleeve, shape and the polygon-shaped seat of polygon sleeve match, polygon sleeve and polygon-shaped seat removably connect, and the first insulating bar end is provided with top connector; Bottom extension rod comprises the second insulating bar, and the top of the second insulating bar and the connector of the first insulating bar end match.

2. Novel high-level bus bridge Special grounding wire clip according to claim 1, it is characterized in that: described top connector is hollow cylindrical drum, hollow cylindrical inner horizontal is provided with a gag lever post, and the top of hollow cylindrical tube is set in the first insulating bar end.

3. Novel high-level bus bridge Special grounding wire clip according to claim 2, it is characterized in that: the top end face of the second insulating bar offers a draw-in groove, gag lever post is located in draw-in groove, the overall diameter of the second insulating bar is less than the interior diameter of top connector.

4. Novel high-level bus bridge Special grounding wire clip according to claim 3, is characterized in that: described bottom extension rod end is provided with the connector identical with the top connector of the first insulating bar end.

5. Novel high-level bus bridge Special grounding wire clip according to claim 4, is characterized in that: described bottom extension rod is provided with many.

6. Novel high-level bus bridge Special grounding wire clip according to claim 5, is characterized in that: the lower surface of train wheel bridge is provided with the wire casing to fovea superior.

7. Novel high-level bus bridge Special grounding wire clip according to claim 6, is characterized in that: described pilot pin is provided with two.