CN2155631Y

CN2155631Y - Earth lead clamp and special threading device

Info

Publication number: CN2155631Y
Application number: CN 93228163
Authority: CN
Inventors: 王凤华; 朱式程
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-14
Filing date: 1993-05-14
Publication date: 1994-02-09
Anticipated expiration: 2003-05-14

Abstract

The utility model discloses an earth lead clamp and special threading device. The casing of the clamp is provided with a top plate and a rotary clamp by pins, and the casing is also provided with a ratchet wheel shaft and a ratchet pawl shaft, wherein, the ratchet wheel shaft is provided with a ratchet wheel, and the ratchet pawl shaft is provided with a ratchet pawl. The ratchet wheel shaft is also provided with a lock wheel by a connecting rod, and the front end of the ratchet wheel shaft is fixed with a locking main rod. The back end of the ratchet pawl shaft is connected with a releasing operation rod by a key. The special threading device is provided with a clamping plate, the clamping plate is provided with a movable head by a rotary shaft, the rotary shaft is provided with a torsional spring by which the movable head can be reset, the upper end of the movable head is fixed with a thread delivering hook, and the other end of the clamping plate is fixed with a thread hanging hook. The earth lead of the electric power guide lead can be safely and rapidly hung and connected by the utility model.

Description

Earth lead clamp and special threading device

Hanging earthing conductor electric power system be one very important and be again a regular job.Hanging earthing conductor adopts insulating bar directly to hang always at present, but electrical lead is all very high apart from ground, as the lead of 500 kilovolts of equipment about 15 meters apart from ground, the people stands on the ground and does not hang with insulating bar at all, so the maintainer has to climb to the equipment top directly with the hand extension sometimes, does like this and not only violates operating provision, and quite dangerous, the present hanging ground-wire instrument of also not finding safe ready.

The purpose of this utility model provides a kind of can carrying, on the ground earth lead clamper and special-purpose threading device that just can safe ready ground hanging earthing conductor.

For achieving the above object, the utility model adopts an earth lead clamper and the supporting use of special-purpose threading device, and the earth lead clamper has a housing, top board is installed and changes folder by bearing pin on housing; Ratchet shaft and pawl axis also are installed on housing, on ratchet shaft, a lock wheel are installed by connecting rod; Rear end at pawl axis is connected with a releasing operation bar by key; Be connected with an interlock release lever in the ratchet shaft rear end by key, be fixed with a locking mobile jib at the ratchet shaft front end.

Special-purpose threading device has clamping plate, by rotating shaft a head alive is installed on the clamping plate, and the torsion spring that the head of living is resetted is installed in rotating shaft, is fixed with rope supplying hook in the head upper end of living, and has been screwed the lanyard hook at the clamping plate other end.

Advantage of the present utility model is that volume is little, be easy to carry and operate, hanging wire rapidly, safety.

Fig. 1 is a front view of the present utility model;

Fig. 2 is the B-B cutaway view of the utility model Fig. 1;

Fig. 3 is the A-A cutaway view of the utility model Fig. 2;

Fig. 4 is that the C of the utility model Fig. 1 is to partial view;

Fig. 5 is that the D of the utility model Fig. 1 is to partial view;

Fig. 6 is the front view of the utility model threading device;

Fig. 7 is the A-A cutaway view of the utility model Fig. 6.

Describe in detail below in conjunction with accompanying drawing:

As Fig. 1, Fig. 2, shown in Figure 3: the earth lead clamper has a housing 1, said housing be by a base plate 1 ' and cover plate 1 " be formed by connecting with bolt; a top board axle 3 is installed on housing; be set with the top board 5 that an energy rotates around top board axle 3 on the top board axle 3, as shown in Figure 3: on the top board axle, also have two location axle sleeves 22; A locating shoulder is arranged on said top board 5.Between top board 5 and housing 1, be connected with an extension spring 4.Being set with one on top board 4 changes folder 6, changes folder 6 lower ends and is installed on the housing 1 by changeing folder axle 12, changes folder 6 and can rotate around changeing folder axle 12, changeing between folder 6 and the housing 1, a back-moving spring 2 is arranged.A ratchet shaft 10 and pawl axis 7 also are installed on housing 1, on said ratchet shaft 10, are fixed with a ratchet 11, on ratchet shaft, also be connected with a fork 9, by bearing pin lock wheel 14 is installed at fork 9 left ends by key.A ratchet 8 is installed on pawl axis 7, and said ratchet 8 intermeshes with ratchet 11.As Fig. 2, shown in Figure 4: the rear end at housing back pawl axis 7 is connected with a releasing operation bar 17 by key, on the releasing operation bar, be fixed with a trace 18, in ratchet shaft rear end, housing back, be connected with an interlock release lever 19 by key, a hole 19A is arranged on interlock release lever 19, and trace 18 passes this hole.As shown in Figure 5, be connected with a locking mobile jib 15 by key, on housing, also a lock operating lever 16 be installed, by rotating shaft a pulley 21 is installed in action bars 16 upper ends by lock shaft 13 at the ratchet shaft front end.Housing 1 lower end has one to be the thread gripping-board of one with housing 1, and two holes are arranged on thread gripping-board, and one is lacing hole 1B, and another is earth connection hole 1A.

Threading device with extension ground wire clamper matches and uses has two clamping plate that are bolted together 1, as Fig. 6, shown in Figure 7, is connected with a right angle flap 3 at clamping plate 1 left upper end by rotating shaft 5, and a back-moving spring 2 is installed in rotating shaft 5.Be screwed a lanyard hook 5 at the clamping plate upper right side, one and the corresponding rope supplying hook 4 of lanyard hook have also been arranged on the right angle flap.

During use, in the rope supplying hook of the flap upper end, right angle that at first will insulating restricts is suspended to threading device, with insulating bar threading device is lifted then, electric wire is contacted with the right angle flap 3 of threading device, resistance by electric wire makes right angle flap 3 rotate 90 °, at this moment the rope supplying hook of right angle flap is delivered to rope in the lanyard hook of clamping plate upper right side, at this moment the insulation rope is about to the electrical lead circle with threading device, at this moment spur threading device downwards, the right angle flap resets under extension spring 2 drives, rope then is hung in the lanyard hook, the other end and the earth lead clamper lacing hole 1B of rope are linked together, the earth connection hole 1A of earth lead and earth lead clamper is tied together, pull down threading device, move the earth lead clamper to the electric wire place, the top board 5 of earth lead clamper is rotated around axle 3, drop to position shown in Figure 2, clamping plate 5 and housing 1 are clamped electric wire, for increasing clamping force, pull down lock operating lever 16, be handled easily, a rope is passed the lacing hole of check lock lever 16, the people stands in and on the ground spurs rope check lock lever 16 is rotated counterclockwise in position shown in Figure 5 then, and forces locking mobile jib 15 to clockwise rotate by pulley 21, and locking mobile jib 15 drives ratchet shafts 10 and rotates, ratchet shaft 10 drivening rods 9 rotate, make lock wheel 14 withstand clamping plate 5, clamping plate 5 are cooperated with housing, electric wire is tightly clamped, because the cooperation of ratchet and pawl, ratchet can not be reversed, and therefore, mechanism can not unclamp voluntarily.Work as end of operation, available pulling moved releasing operation bar 17, is handled easily, also a rope is hung on the releasing operation bar 17, the people stands in pulling cord on the ground, the releasing operation bar is clockwise rotated by edge, position shown in Figure 4, and drive the ratchet rotation by pawl axis, ratchet and ratchet are separated, when the releasing operation bar drops to certain position, just force interlock release lever 19 to rotate, ratchet shaft drivening rod 9 is rotated, and 14 declines of lock wheel are separated with clamping plate 6, at this moment the ground wire clamper can be taken.

Claims

1, a kind of earth lead clamper comprises housing, it is characterized in that: top board is installed and changes folder by bearing pin on housing; Ratchet shaft and pawl axis also are installed on housing, a ratchet is arranged on ratchet shaft; A ratchet is arranged on pawl axis; On ratchet shaft, also a lock wheel is installed by connecting rod; Be fixed with a locking mobile jib at the ratchet shaft front end; Be connected with a releasing operation bar in the pawl axis rear end by key.

2, according to right 1 described earth lead clamper, it is characterized in that: a lock operating lever also is installed on housing, on lock operating lever, pulley is installed by rotating shaft.

3, earth lead clamper according to claim 1 is characterized in that: be fixed with a trace on the releasing operation bar, trace passes the hole on the interlock release lever.

4, the special-purpose threading device that is used of a kind of and earth lead clamper, it is characterized in that: clamping plate are arranged, on clamping plate, a head alive is installed, the torsion spring that the head of living is resetted is installed in rotating shaft by rotating shaft, be fixed with rope supplying hook in the head upper end of living, be fixed with the lanyard hook at the clamping plate other end.