CN2458746Y

CN2458746Y - High-voltage grounding wire clamp

Info

Publication number: CN2458746Y
Application number: CN 00257290
Authority: CN
Inventors: 王兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-13
Filing date: 2000-10-13
Publication date: 2001-11-07
Anticipated expiration: 2010-10-13

Abstract

The utility model discloses a high-voltage grounding wire clamp, which is composed of a clamping device and a controlling device which are connected together by a pulling line, wherein, the clamping device takes a hook to compose the main body, a concave groove is arranged in the inner side of the clamping device, a screw is connected with a tongue plate in the low part of the hook, and the tongue can oscillate taking the screw as the shaft; the flat linear part of the hook is provided with a pin, a tension spring is sheathed on the pin, and two feet of the spring are respectively pushed on the opposite two sides of the hook and the tongue plate; the middle parts of the hook and the tongue plate are respectively provided with a through hole of the pulling line. The controlling device comprises a fixing rod and a handle which are connected through a screw, the upper part of the handle is provided with a closure groove of the pulling line to fix one end of the pulling wire, and the other end is fixed in the through hole of the pulling line on the tongue plate. As long as the length of the pulling line is enough, an electric worker can carry out the full set of the operation of clamping and loosening on the ground, the operation is convenient, safe and reliable.

Description

The high-voltage earthing wire clamp

The utility model relates to a kind of high-voltage earthing wire clamp, or rather, relates to a kind of 500KV stay-supported high-voltage earthing wire clamp.

The high-voltage earthing wire clamp is high-tension circuit when maintenance one of instrument commonly used, power supply and the earth is coupled together by it temporarily, and the high-tension circuit that had had a power failure originally when preventing to overhaul is sent a telegram here to life danger that the maintenance worker is caused because of unexpected.The high-voltage earthing wire clamp is made up of wire clamp and earth connection usually, and wherein wire clamp is a critical component; Requirement to wire clamp comprises: have fabulous conductivity, big with the contact area of lead, can bear impact of huge short circuit current or the like.

Present employed high-voltage earthing wire clamp all needs work high above the ground, it is not too convenient to use, and can not guarantee the danger that the maintenance worker sends a telegram here and brought suddenly because of high-tension bus-bar when wire clamp is operated, the clamping plate of wire clamp are generally flat type in addition, little with the lead contact area, there is the outer layer rubber of potential safety hazard and fragile lead.

In order to solve existing deficiency in the above-mentioned high-voltage earthing wire clamp, it is a kind of simple in structure, easy to operate that the purpose of this utility model is to provide, big with the contact area of lead, wireplint contacts good high-voltage earthing wire clamp with lead, and just can finish clamp, unwrapping wire etc.～a whole set of operating process on ground.

In order to achieve the above object, high-voltage earthing wire clamp of the present utility model is made up of two parts, and the wire-clamping device that part foot contacts with lead, another part are the control device of being operated by the check man, is connected by a backguy between wire-clamping device and the control device; Wherein wire-clamping device constitutes main body by a hook that has earth lead, has dug a groove in the hook inboard, and connects a hyoplastron in the bottom of hook straight portion with a bolt, and this hyoplastron can serve as the axle swing with this bolt; Hook straight portion above this bolt is equipped with a pin, is with a tension spring on this pin, and the spring bipod withstands on respectively on the hook both sides relative with hyoplastron; One backguy perforation is respectively arranged at the middle part of hook and hyoplastron, and they are on the same horizontal level.

Control device is connected by a bolt with handle by a fixed lever, one backguy end socket groove is arranged above handle, the through wires hole that one end of backguy is passed on the fixed lever is cemented in the backguy end socket groove of handle, and the through wires hole that the other end passes on the wire-clamping device hook is cemented in the hyoplastron through wires hole.

When using this high-voltage earthing wire clamp, at first wire-clamping device is placed on the lead, wire-clamping device is in normal condition, and this moment, hyoplastron and hook can only be placed on the lead but can not the clamping lead; When the handle of holding with a firm grip is twitched backguy and drive hyoplastron to the swing of hook straight portion direction, fall at the action of gravity lower draw-bar, make lead be in the bend office of hook, decontrol handle hyoplastron under the tension spring effect and back swing, block lead.When needs with the wire-clamping device handle of when lead takes off, need holding with a firm grip once more, twitch backguy and also drive hyoplastron to the swing of hook straight portion, unclamp lead and take off wire-clamping device.

There is a projection that has a through wires hole in the hook straight portion of the wire-clamping device outside.

Wire-clamping device is made with the good material of conductivity such as aluminium alloy.

In conjunction with the accompanying drawings a most preferred embodiment of the present utility model is described in further detail down.

Fig. 1 is the structural representation of the utility model high-voltage earthing wire clamp wire-clamping device.

Fig. 2 is the structural representation of the utility model high-voltage earthing wire clamp control device.

The utility model is made up of two parts, and a part is a wire-clamping device as shown in Figure 1, and another part is a control device as shown in Figure 2, is connected by a backguy 4 between wire-clamping device and the control device.

Wherein the main part of wire-clamping device is the hook 7 that a bottom has two earth leads, 11 usefulness connecting holes 3.Dug a groove in hook 7 inboards, the lower end of groove is positioned at the top of connecting hole 3, and the upper end is positioned at the upper end of hook sweep.

Lower end at groove connects a hyoplastron 8 with a bolt 6, and an end of this hyoplastron 8 is connected as a single entity by bolt 6 and hook 7, and the other end places in the groove of hook, and can serve as that axle swings back and forth in the hook corner with bolt 6.Hook 7 has a pin 17 above bolt 6, be with a tension spring 10 on this pin 17, and the bipod of tension spring 10 withstands on respectively on the relative both sides of hook 7 and hyoplastron 8, and making is not having hyoplastron 8 under the external force effect can abut against the upper end of hook groove.Respectively there are a through

wires hole

2 and 9 in middle part at hook 7 and hyoplastron 8, and they are in same horizontal level and direction is vertical mutually.

The outer lower portion of straight portion has a projection 5 in hook 7 in addition, and a through wires hole 12 is arranged on this projection 5, twitches sensitive in order to guarantee backguy.Also have that the straight portion outer upper has a link 1 in hook 7, easy to carry when being convenient to wire-clamping device and not using.

In addition, control device constitutes main body by fixed lever 16 and handle 14, and fixed lever 16 and handle 14 fuse by a bolt 13, and can serve as that axle rotates with bolt 13, at handle one backguy end socket groove 15 is arranged above 14.

Backguy 4 one ends are cemented on the backguy end socket groove 15 of control device, and the other end passes the through wires hole on the projection 5 12 in the wire-clamping device, and and then through in the through wires hole 9 on the 2 arrival hyoplastrons 8 of the through wires hole on the hook 7.

When using this high-voltage earthing wire clamp, at first wire-clamping device is placed on the lead, wire-clamping device is in normal condition, and this moment, hyoplastron 8 and hook 7 can only be placed on the lead but can not the clamping lead; When the handle 14 held with a firm grip is twitched backguys 4 and driven hyoplastron 8 in hook 7 during the straight portion swing, fall at action of gravity lower draw-bar 7, make lead be in the bend office of hook 7, decontrol handle 14 hyoplastron under the effect of tension spring 10 and back swing, block lead.When needs with the wire-clamping device handle 14 of when lead takes off, need holding with a firm grip once more, twitch backguy 4 and also drive hyoplastron 8 to the swing of hook 7 straight portion, unclamp lead and take off wire-clamping device.

As long as backguy 4 long enoughs, the check man stands on the ground just can carry out clamping, unclamp operation to high-voltage conducting wires, and because earth lead is without control device, even the unexpected incoming call of high-tension bus-bar this moment can not cause danger to the check man yet, so easy to operate, safe, reliable.

Claims

1. a high-voltage earthing wire clamp is made up of wire-clamping device and control device two parts, connects with a backguy between two parts, it is characterized in that:

Wherein wire-clamping device constitutes main body by a hook (7) that has earth lead, dug a groove in the hook inboard, and the bottom of straight portion is connected with a hyoplastron (8) with a bolt (6) in hook, this hyoplastron (8) can serve as that axle is swung with this bolt (6), hook (7) straight portion in this bolt (6) top is equipped with a pin (17), be with a tension spring (10) on this pin (17), the spring bipod lean respectively hook (7) and hyoplastron (8) over against two sides on, at the middle part of hook (7) and hyoplastron (8) backguy perforation (2) and (9) is arranged respectively, they are on the same horizontal level, and an end of backguy (4) passes backguy perforation (2) and is cemented in the through wires hole (9);

Control device constitutes main body by fixed lever (16) and handle (14), be connected as a single entity by a bolt (13) between fixed lever (16) and the handle (14), and can serve as that axle rotates with this bolt (13), on handle (14) top one backguy end socket groove (15) is arranged, be used for fixed backguy of drawing from wire-clamping device;

2. high-voltage earthing wire clamp according to claim 1 is characterized in that: the hook straight portion outside of wire-clamping device also has a projection (5), and this projection has a through wires hole on (5).

3. high-voltage earthing wire clamp according to claim 1 is characterized in that: wire-clamping device is to make with the good material of conductivity such as aluminium alloy.

4. high-voltage earthing wire clamp according to claim 1 is characterized in that: there is a link (1) in the hook straight portion outside of wire-clamping device.