CN102434086A

CN102434086A - Ladder for getting down transmission line

Info

Publication number: CN102434086A
Application number: CN201110407402XA
Authority: CN
Inventors: 许磊; 李刚; 甘文辉
Original assignee: Shaanxi University of Technology
Current assignee: Shaanxi University of Technology
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-05-02

Abstract

The invention discloses a ladder for getting down a transmission line. The adder for getting down the transmission line comprises a hanging hook, a joint, a handle assembly, an upper screw, a lead screw, pedal assemblies, a bushing, a lower screw and a lifting hook. The hanging hook is welded at the upper end of the joint and the lower end of the joint is connected with the lead screw through a steel ball. The lead screw is screwed in the upper screw. A ratchet wheel is arranged at the neck of the lead screw. The handle assembly is installed on the ratchet wheel. The upper screw is connected onto the outer wall of the upper end of the bushing through threads. The pedal assemblies are arranged at the middle part of the bushing. Each pedal assembly consists of a screw rod, a pin roll, a support and a pedal, wherein the support is fixed on the bushing through the screw rod and the pedal is fixed on the support and the screw rod through the pin roll. The outer wall of the lower end of the bushing is connected with the lower screw through threads. The lower end of the lower screw is connected with the lifting hook through a steel ball. When operation is conducted by using the ladder, the stability is high, the operation height and the operation direction are adjustable, the ladder is safe and reliable for working and the ladder is mainly used for the maintenance of vertically split conducting wires of a high-voltage transmission line.

Description

Ladder rolls off the production line

Technical field

The invention belongs to ultra-high-tension power transmission line maintenance facility, be specifically related to a kind of between last lower wire, the conversion and the ladder that rolls off the production line during fixed operation.

Background technology

Line maintenance is a frequent and more frequent job; Particularly during the maintenance of the vertical split conductor of ultra-high-tension power transmission line, often need be between last lower wire conversion process, prior art connects a flexible rope ladder below being employed in the rope ladder head that hangs on the lead mostly again; The operating personnel is up and down and operation on rope ladder; This combining form not only combines complicacy, the more important thing is the operating personnel on rope ladder during operation, and the motion of rope ladder during with the human body operation constantly is out of shape; Make the operating personnel be difficult to keep balance, operation is dangerous big.

Summary of the invention

The objective of the invention is to overcome the deficiency of prior art, good stability, adjustable, the safe and reliable ladder that rolls off the production line of operation height when proposing a kind of simple in structure, operation.

The technical scheme that realizes above-mentioned purpose is: a kind of ladder that rolls off the production line, and it comprises hook, joint, handle assembly, last screw, leading screw, pedal assembly, sleeve pipe, following screw, suspension hook, it is characterized in that: the sleeve pipe upper end is provided with screw; Leading screw screws in last screw; The leading screw neck is provided with handle assembly, and the leading screw top is provided with joint, and joint is provided with hook; The sleeve pipe middle part is provided with the array pedal assembly, and the sleeve pipe lower end is provided with down screw, the screw lower end is provided with suspension hook down.

Said joint all is connected through steel ball with suspension hook with leading screw, following screw, rotates arbitrarily but the ladder work of rolling off the production line does a position solderless wrapped connection center, and suspension hook can rotate arbitrarily around following screw center.

Said handle assembly is provided with ratchet, and leading screw is provided with ratchet, and handle assembly is installed on the ratchet, pulls handle assembly leading screw is rotated forward or backwards.

Said pedal assembly is made up of screw rod, bearing pin, bearing, pedal, is horizontal during the pedal duty, can rotate up 90 ° around bearing pin during carrying.

Effect of the present invention is: whole according to the ladder that rolls off the production line of such scheme manufacturing is rigidity, and job stabilization is good, safe and reliable, and operation height and operator are to adjustable, and pedal can fold, and this ladder that rolls off the production line is simple in structure, easy to use.

Description of drawings

Fig. 1 is the structural representation of one embodiment of the invention.

Fig. 2 is the cutaway view Amplified image at Figure 1A-A place.

Fig. 3 is the cutaway view Amplified image at Figure 1B-B place.

Among the figure: 1. hook, 2. joint, 3. screw, 4. steel ball, 5. handle assembly, 51. ratchets are 6. gone up screw; 7. leading screw, 8. backing pin, 9. pedal assembly, 91. nuts, 92. packing rings, 93. bearings, 94. bearing pins; 95. screw rod, 96. pedals, 10. screw, 11. sleeve pipes, 12. times screws, 13, suspension hook.

The specific embodiment:

Below in conjunction with accompanying drawing the present invention is described further.

As shown in Figure 1; The present invention's ladder that rolls off the production line, it comprises hook 1, joint 2, handle assembly 5, goes up screw 6, leading screw 7, pedal assembly 9, sleeve pipe 11, screw 12 and suspension hook 13 down, is welded with hook 1 on the joint 2; Joint 2 bottoms and cooperation place, leading screw 7 top are provided with the circular arc annular groove that matches; Be provided with a plurality of steel balls 4 in the groove, steel ball 4 can outwards not drop after through screw 3 shutoff, but leading screw 7 rotates arbitrarily with solderless wrapped connection 2 center after joint 2 is connected through steel ball 4; Leading screw 7 upper end necks also are provided with handle assembly 5, and the threaded portion of leading screw 7 screws in last screw 6, and the threaded portion lower end is provided with backing pin 8, and leading screw 7 can not screw out screw 6 when screwing, and guarantee job safety; Last screw 6 screws the outer wall in the upper end of sleeve pipe 11 through screw thread, and locked through screw 10, can not drive screw 6 when guaranteeing leading screw 7 rotations around sleeve pipe 11 rotations; Sleeve pipe 11 middle parts are arranged with a plurality of pedal assemblies 9, and the pedal 96 in the pedal assembly 9 is stood for the operating personnel or the usefulness of climbing up and down, and its duty is not horizontal and can be rotated down; Be combined with down screw 12 through screw thread on the sleeve pipe 11 lower end outer walls; And it is locked through screw 10; Following screw 12 lower ends are connected through steel ball 4 with suspension hook 13, and steel ball 4 can not drop after through screw 3 shutoff, and suspension hook 13 can rotate arbitrarily around screw 12 centers down; The effect of suspension hook 13 is: be provided with on the suspension hook 13 tightrope can from below traction make the ladder that rolls off the production line keep stable, the hanging point when suspension hook 13 also can be used as lifting.

Like Fig. 1, shown in Figure 2; Handle assembly 5 is provided with the ratchet 51 that can change direction; Leading screw 7 is provided with ratchet 71, pulls handle assembly 5, drives ratchet 71 through ratchet 51 leading screw 7 is rotated forward or backwards; Working position, the terraced bottom integral body that rolls off the production line will be moved thereupon up or down, makes the operating personnel be in desirable operation height.

Like Fig. 1, shown in Figure 3; Pedal assembly 9 comprises bearing 93, bearing pin 94, screw rod 95 and pedal 96; Bearing 93 is fixed on the sleeve pipe 11 through screw rod 95, packing ring 92, nut 91, and pedal 96 is fixed on bearing 93 and the screw rod 95 through bearing pin 94, and pedal 96 duties are horizontal; Can rotate up 90 ° around bearing pin 94 during carrying, realize folding.

Claims

1. ladder that rolls off the production line, it comprises hook, joint, handle assembly, goes up screw, leading screw, pedal assembly, sleeve pipe, screw, suspension hook down, it is characterized in that: the sleeve pipe upper end is provided with screw; Leading screw screws in last screw; The leading screw neck is provided with handle assembly, and the leading screw top is provided with joint, and joint is provided with hook; The sleeve pipe middle part is provided with the array pedal assembly, and the sleeve pipe lower end is provided with down screw, the screw lower end is provided with suspension hook down.

2. according to the described a kind of ladder that rolls off the production line of claim 1, it is characterized in that: said joint all is connected through steel ball with suspension hook with leading screw, following screw.

3. according to the described a kind of ladder that rolls off the production line of claim 1, it is characterized in that: said handle assembly is provided with ratchet, and leading screw is provided with ratchet, and handle assembly is installed on the ratchet.

4. according to the described a kind of ladder that rolls off the production line of claim 1; It is characterized in that: said pedal assembly is made up of screw rod, bearing pin, bearing, pedal; Bearing is fixed on the sleeve pipe through screw rod; Pedal is fixed on bearing and the screw rod through bearing pin, and pedal can rotate up 90 °, duty around bearing pin and be horizontal.