CN202190019U - Aerial earth wire ratchet wrench type two-point lifting tool - Google Patents

Abstract

The utility model relates to the technology field of power transmission line lifting operation, and discloses an aerial earth wire ratchet wrench type two-point lifting tool which is composed of lifters connected with two ends of a channel steel (15) and a clamping device (1) arranged in the middle of the channel steel (15). The clamping device (1) is a convex structure which is sleeved on angle steels which are arranged in parallel and in symmetry. Two ends of the convex structure of the clamping device (1) are provided with fixed screws (14). A convex groove of the convex structure of the clamping device (1) is provided with a jackscrew (2). The aerial earth wire ratchet wrench type two-point lifting tool enables a single constructor to compete the aerial operation independently without carrying an aerial earth wire on shoulders, thus avoiding the waist damage in construction process. The aerial earth wire ratchet wrench type two-point lifting tool is simple, reasonable, safe, reliable, and efficient.

Description

A ratchet wrench type two-point lifting tool for overhead ground wire

technical field

The utility model relates to the technical field of lifting operations for power transmission lines, in particular to an overhead ground wire ratchet wrench type two-point lifting tool for power transmission lines.

Background technique

At present, for the installation of the overhead ground wire of the power transmission line iron tower, in order to remove the overhead ground wire from the pay-off pulley, the construction personnel fix the ground wire at the ground wire hanging point by installing the ground wire suspension clamp and using the connecting hardware. The best method is to carry out the installation personnel shoulder method, this shoulder method has the following problems in actual work:

(1) Since the standing position of the construction personnel on the tower is not the best position for shoulder carrying, the strength cannot be fully exerted during the shoulder carrying process, and it is difficult to use shoulder carrying to make the ground wire reach the proper position for installation.

(2) When the overhead ground wire is carried on the shoulder, due to the heavy weight of the overhead ground wire, many high-altitude workers have sprained their waists during the operation.

(3) Due to the effect of the tension of the ground wire, the higher the height and the greater the tension, the greater the force required. Many ground wires with large gear distances are operated, and the operators did not carry them to the position due to the strength. If it is not enough, the ground wire will fall off from the shoulder and the ground wire will fall to the ground.

(4) This operation method requires two people on the tower to work together. Due to the difference in standing position and height, the mutual cooperation is uncoordinated, the work efficiency is low, the labor intensity is high, and there are many safety hazards.

Contents of the invention

In order to solve the practical problems in the installation of overhead ground wires, the utility model provides a ratchet wrench type two-point lifting tool for overhead ground wires. An overhead ground wire lifter with high working efficiency.

In order to realize the above-mentioned purpose of the invention, the utility model adopts the following technical solutions:

A ratchet wrench type two-point lifting tool for overhead ground wire, which is composed of a lifter connected at both ends of a channel steel and a clamp set in the middle of the channel steel. The clamp is a convex structure set on a symmetrical parallel angle steel. The two ends of the convex structure of the jig are provided with fixing screws, and the convex grooves of the convex structure of the jig are provided with jacking screws.

A ratchet wrench-type two-point lifting tool for overhead ground wires. The frame is a trough structure, the bottom of the lifting frame is connected with the channel steel through connecting screws, there are winding steel pipes and fixed screw rods on the edge of the lifting frame groove, the winding steel pipes are provided with winding hanging holes for wire ropes, The steel wire rope is connected to the fixed screw rod by the winding steel pipe through the hook; one end of the winding steel pipe is provided with a ratchet, and the ratchet is engaged with the pawl; the other end of the winding steel pipe is provided with a wrench matched with a ratchet wrench.

Due to the adoption of the above-mentioned technical scheme, the utility model has the following advantages:

A ratchet wrench-type two-point lifting tool for overhead ground wires, which enables construction workers to carry out high-altitude operations without carrying them on their shoulders, and can be completed by a single person independently, avoiding waist injuries during construction. The tool and the cross-arm The fixed part makes full use of the original structure of the double hanging point angle steel to avoid damage to the cross arm when it is stressed, it is easy to install, firm and stable, and because the distance from the lifting point to the lifting object is shortened, the ground wire can be easily lifted To a suitable installation position, the clamps used in this lifter can be installed according to the plane direction of the angle iron at the hanging point of the wire cross-arm. Fixed installation, the hoisting part of the hoist is designed to automatically lock with ratchet, which is convenient and quick when removing the ground wire block and connecting the hanging wire clip to the hanging point. The tool has the characteristics of simplicity and rationality, safety and reliability, and high work efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the ratchet wrench type two-point lifting tool for overhead ground wires;

Fig. 2 is a partial schematic view of the jig of the lifting tool;

Fig. 3 is a schematic diagram of the lifting part;

Figure 4 is a schematic diagram of the fixed installation of the lifter when the plane of the cross-arm angle iron at the lifting point is upward;

Figure 5 is a schematic diagram of the fixing of the lifter fixture when the plane of the cross-arm angle iron at the lifting point is downward.

In the figure: fixture 1, fixture top wire 2, connecting screw 3, lifting frame 4, winding steel pipe 5, winding hanging hole 6, ratchet 7, pawl 8, wrench 9, fixed screw rod 10, wire rope 11. Hook 12, ratchet wrench 13, fixing screw 14, channel steel 15.

Detailed ways

As shown in Figures 1, 2, 3, 4, and 5, an overhead ground wire ratchet wrench type two-point lifting tool is composed of a lifter connected at both ends of a channel steel 15 and a fixture 1 provided in the middle of the channel steel 15. The fixture 1 described above is a convex structure that is set on the symmetrical parallel angle steel on the iron tower. The two ends of the convex structure of the fixture 1 are provided with fixing screws 14, and the convex groove of the convex structure of the fixture 1 is provided with a top wire 2. ;

The lifter is composed of a lifting frame 4, a wire-wound steel pipe 5, a ratchet 7, a pawl 8, a wrench 9, a fixed screw 10 of the lifting frame, a steel wire rope 11, and a hook 12. The lifting frame 4 is a groove type structure, the bottom of the 4 grooves of the lifting frame is connected with the channel steel 15 through the connecting screw 3, the edge of the 4 grooves of the lifting frame is provided with a winding steel pipe 5 and a fixed screw 10, and the winding steel pipe 5 is provided with a winding wire rope 11 The wire hanging hole 6, the wire rope 11 is connected to the fixed screw rod 10 by the winding steel pipe 5 through the hook 12; the one end of the winding steel pipe 5 is provided with a ratchet 7, and the ratchet 7 is engaged with the pawl 8; the winding steel pipe 5 is in addition One end is provided with a wrench 9 matched with a ratchet wrench 13 .

The wire lifter includes an upper clamp 1, the lower part is composed of two lifting parts composed of two lifters, the upper clamp 1 is installed on the hanging point angle steel 16, fixed with a top wire 2, in order to facilitate disassembly and assembly, the lifting The heavy frame 4 is connected with the jig 1 through the connecting screw 3, the lifting frame 4 is provided with a winding steel pipe 5, one end of the winding steel pipe is provided with a ratchet 7, and the ratchet upper lifting frame 4 is provided with a pawl and the ratchet cooperates to realize automatic locking To prevent the reverse rotation of the tubular winding device 5, the tubular winding device 5 is provided with a hanging hole 6 connected to the steel wire rope 11, the other end of the tubular winding device 5 is provided with a wrench 9 matched with a ratchet wrench 13, a winding steel pipe 5 and a fixing bolt 10 Connect to each other by wire rope 11 and suspension hook 12.

When in use, hang the hook 12 on the ground wire, install two ratchet wrenches 13 on the wrench heads 9 of the two lifters, and turn the two wrench heads 9 at the same time to rotate the winding steel pipe 5 and tighten the wire rope 11 to make the ground wire To promote, the ratchet wrench 13 is designed to be telescopic, so that the length of the handle of the ratchet wrench 13 can be stretched according to the ground wire stress to improve the lifting speed and increase the lifting force. The ratchet wrench can be used to rotate 360°, and the range of rotation can be determined as required without removing the sleeve and inserting it again. The pause in the rocking process can automatically lock the ratchet 7 through the ratchet 8 with a spring.

work process

During use, the clamp 1 is fixed on the cross arm through the channel steel 15 and the clamp fixing screw 14, fixed with the top wire 2, the lifting frame 4 is connected with the clamp 1 with the connecting screw, and the hooks 12 at both ends are put down. Hook the hooks 12 to the overhead ground wires at both ends, respectively install the ratchet wrench 13 on the wrench 9, and use the ratchet wrench 13 to turn the wrench 9 at both ends clockwise to make the winding steel pipe 5 rotate and tighten Wire rope 11 promotes the overhead ground wire, makes the overhead ground wire break away from the pay-off pulley position, and stops lifting when the ground wire is lifted to a suitable position that can be installed, and the ratchet 8 on the lifting frame will automatically lock the ratchet 7 to prevent it from reversing. The operator just can remove the pay-off pulley and carry out the installation of the ground wire suspension clamp. It should be noted that during the operation, the stress and lifting force will be changed due to the change of the size of the gear span and the lifting height. The ratchet wrench 13 is designed to be retractable, so that the length of the handle of the ratchet wrench 13 can be adjusted according to the stress of the ground wire , increase lifting speed and increase lifting power. the

Claims (2)

1. 2 lifting instruments of an overhead ground wire ratchet wrench hand-type; It is characterized in that: constitute by the lifter of channel-section steel (15) two ends connection and the jig (1) of channel-section steel (15) middle part setting; Described jig (1) is the convex structure on the symmetry angle steel arranged side by side; The limit, convex structure two ends of jig (1) is provided with fixed screw (14), and the concave slot of jig (1) convex structure is provided with jackscrew (2).

2. 2 lifting instruments of a kind of overhead ground wire ratchet wrench hand-type as claimed in claim 1; It is characterized in that: said lifter is made up of crane boom (4), coiling steel pipe (5), ratchet (7), ratchet (8), spanner (9), the fixedly screw mandrel (10) of crane boom, steel wire rope (11), suspension hook (12); Crane boom (4) is a trench structure; Crane boom (4) bottom land links to each other with channel-section steel (15) through connecting screw (3); Crane boom (4) trough rim is provided with coiling steel pipe (5) and fixing screw mandrel (10); Said coiling steel pipe (5) is provided with the coiling hanging hole (6) of steel wire rope (11), and steel wire rope (11) is linked to each other with fixing screw mandrel (10) through suspension hook (12) by coiling steel pipe (5); Said coiling steel pipe (5) one ends are provided with ratchet (7), ratchet (7) and ratchet (8) engagement; Said coiling steel pipe (5) other end is provided with the spanner (9) that cooperates with ratchet spanner (13).

Images