Insulating ladder with protective sleeve

By designing a protective suit on the insulated ladder, using an inner groove and a swing rod to form a stable triangular structure, and connecting it with a safety rope, the problem of swaying and sliding of the insulated ladder is solved, thereby improving safety and stability during use.

CN223867930UActive Publication Date: 2026-02-03HEBEI RUISHUO ELECTRIC POWER EQUIPMENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520131623.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-03
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing insulated ladders are prone to shaking and slipping during use, posing a safety risk, especially to workers who are on the ladder and are prone to falling.

Method used

An insulated ladder with a protective casing was designed, including a main ladder, an auxiliary ladder, an inner slide, a swing rod, and a connecting seat. The inner slide and the swing rod form a stable triangular structure, and the worker is connected to the ladder by a safety rope to ensure stability and safety during use.

Benefits of technology

It effectively prevents the insulated ladder from shaking and sliding, protecting workers from tipping over or slipping, and improving safety and stability during use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223867930U_ABST
    Figure CN223867930U_ABST
Patent Text Reader

Abstract

The utility model discloses an insulating ladder with a protective sleeve, and relates to the technical field of electrical equipment maintenance tools. Comprising two supporting rods and a plurality of ladder rods, the two ends of each ladder rod are arranged on the two supporting rods respectively, and the ladder rods are arranged in parallel; the structure of the auxiliary ladder is the same as that of the main ladder, the top of the auxiliary ladder is hinged to the top of the main ladder, and the main ladder and the auxiliary ladder are obliquely arranged; the inner sliding groove is formed in a supporting rod on one side, close to the main ladder, of the auxiliary ladder; one end of the oscillating rod is hinged to one side, close to the auxiliary ladder, of the main ladder, and a sliding block is hinged to the other end of the oscillating rod and slides in the inner sliding groove; the connecting seat is arranged on the side wall of the main ladder, a rope ring is arranged on the connecting seat, and the rope ring is connected with clothes of a worker through a safety rope. By arranging the connecting seat, a worker can be connected with the ladder through the safety rope, and the worker can be pulled when the worker topples over or slides down, so that the worker can be effectively protected.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of power equipment maintenance tools, and more specifically to an insulated ladder with a protective cover. Background Technology

[0002] Insulated ladders are widely used in power engineering, telecommunications engineering, electrical engineering, and hydropower engineering as specialized climbing tools. Their excellent insulation properties maximize worker safety, leading to their widespread application in power systems. However, currently, insulated ladders lack comprehensive safety measures, posing risks such as ladder tipping, slipping, and workers falling due to lack of footholds during operation. Working on ladders carries extremely high safety risks.

[0003] Therefore, how to provide an insulated ladder with a protective sleeve that can prevent the insulated ladder from shaking and protect workers when using it is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides an insulated ladder with a protective sleeve, which aims to solve the problems in the background art mentioned above, and to prevent the insulated ladder from shaking and to protect workers when they use it.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An insulated ladder with a protective sleeve includes:

[0007] The main ladder includes two support rods and ladder rods respectively set on the two support rods at both ends; the ladder rods are provided in multiple ways and are arranged parallel to each other.

[0008] An auxiliary ladder has the same structure as the main ladder, with its top hinged to the top of the main ladder. Both the main ladder and the auxiliary ladder are inclined.

[0009] An inner slide rail is provided on the support rod on the side of the auxiliary ladder closest to the main ladder.

[0010] A swing rod, one end of which is hinged to the side of the main ladder near the auxiliary ladder, and the other end of which is hinged to a slider, which slides in the inner groove;

[0011] A connecting seat is provided on the side wall of the main ladder, and a rope loop is provided on the connecting seat. The rope loop is connected to the worker's clothing through a safety rope.

[0012] Furthermore, both support rods of the auxiliary ladder are provided with inner sliding grooves, and there are two swing rods, each with a placement plate.

[0013] Furthermore, the placement tray is provided with a sliding box, which can slide on the placement tray, and the top of the sliding box has an opening.

[0014] Furthermore, the swing rod includes a sleeve and a sliding rod. One end of the sleeve is hinged to the main ladder, and the other end of the sleeve is provided with an opening. One end of the sliding rod slides inside the sleeve, and the other end of the sliding rod is hinged to the slider.

[0015] Furthermore, a transverse sliding groove is provided on the side wall of the sliding sleeve, the transverse sliding groove penetrates the side wall of the sliding sleeve, a limiting block is slidably connected in the transverse sliding groove, one end of the limiting block is connected to the sliding rod, and the other end of the limiting block penetrates the transverse sliding groove and extends out of the transverse sliding groove.

[0016] Furthermore, the limiting block is provided with an internal threaded hole, which passes through the limiting block and the slide rod. A limiting pin is provided in the internal threaded hole. One end of the limiting pin abuts against the side of the sleeve away from the transverse sliding groove, and the other end of the limiting pin extends out of the limiting block and is provided with a rotating handle.

[0017] Furthermore, slide rails are provided on both sides of the main ladder, the connecting seat slides on the slide rails, the side wall of the connecting seat is provided with a fixing hole, a fixing nail is threaded into the fixing hole, one end of the fixing nail abuts against the slide rail, and the other end of the fixing nail extends out of the fixing hole and is provided with a fixing handle.

[0018] As can be seen from the above technical solution, compared with the prior art, this utility model discloses an insulated ladder with a protective sleeve. By setting an inner slide groove and a swing rod, the main ladder and auxiliary ladder can be pulled together when opened, and the swing rod can be retracted when closed, thus forming a triangular structure when the main ladder and auxiliary ladder are opened, making the ladder more stable and preventing swaying and sliding. By setting a connecting seat, a safety rope can be used to connect the worker to the ladder, which can pull the worker back in case of tipping or slipping, effectively protecting the worker. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1An overall structural diagram of an insulated ladder with a protective sleeve provided by this utility model;

[0021] Figure 2 Provided by this utility model Figure 1 Enlarged view of point A

[0022] Figure 3 Provided by this utility model Figure 2 Enlarged view of point B.

[0023] Wherein: 1 is the main ladder; 2 is the support rod; 3 is the ladder rod; 4 is the auxiliary ladder; 5 is the inner slide groove; 6 is the swing rod; 61 is the sleeve; 62 is the slide rod; 601 is the horizontal slide groove; 602 is the limiting block; 603 is the limiting pin; 604 is the rotating handle; 7 is the connecting seat; 701 is the rope ring; 702 is the slide rail; 703 is the fixing pin; 704 is the fixing handle; 8 is the placement plate; 9 is the sliding box. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] See Figure 1-3 This utility model discloses an insulated ladder with a protective sleeve, comprising:

[0026] The main ladder 1 includes two support rods 2 and ladder bars 3, each with one end mounted on one of the support rods 2. Multiple ladder bars 3 are arranged parallel to each other. The auxiliary ladder 4 has the same structure as the main ladder 1, with its top hinged to the top of the main ladder 1. Both the main ladder 1 and the auxiliary ladder 4 are inclined. In this embodiment, the main ladder 1 and the auxiliary ladder 4 are placed on the ground in an A-shape. Support rods 2 are provided on both the main ladder 1 and the auxiliary ladder 4. Anti-slip airbags are installed at the bottom of the support rods 2. The anti-slip airbags have a circular cross-section and are filled with gas. During use, the contact area of ​​the anti-slip airbags is increased, providing anti-slip protection to the bottom of the support rods 2, thereby effectively preventing the main ladder 1 and the auxiliary ladder 4 from sliding and ensuring the safety of the workers.

[0027] The inner slide groove 5 is set on the support rod 2 on the side of the auxiliary ladder 4 near the main ladder 1; one end of the swing rod 6 is hinged to the side of the main ladder 1 near the auxiliary ladder 4, and the other end of the swing rod 6 is hinged to a slider, which slides in the inner slide groove 5; in this embodiment, one end of the swing rod 6 is rotatably connected to the main ladder 1, and the other end of the swing rod 6 can slide in the inner slide groove 5 along the tilt direction of the auxiliary ladder 4, so that when the main ladder 1 and the auxiliary ladder 4 are folded, the swing rod 6 can be lifted upward, and thus the swing rod 6 can be hidden.

[0028] The connecting seat 7 is installed on the side wall of the main ladder 1. The connecting seat 7 is provided with a rope ring 701, which is connected to the worker's clothing through a safety rope. In this embodiment, multiple connecting seats 7 are provided, and multiple connecting seats 7 can be connected to the worker, thereby connecting the user's clothing from multiple directions and pulling the user from multiple directions, which can effectively prevent the user from tipping over and slipping.

[0029] The auxiliary ladder 4 has two support rods 2, each with an inner sliding groove 5. Two swing rods 6 are provided, each with a placement plate 8. A sliding box 9 is provided on the placement plate 8, and the sliding box 9 can slide on the placement plate. The top of the sliding box 9 has an opening. In this embodiment, by providing two support rods 2, the main ladder 1 and auxiliary ladder 4 can be connected more securely. By providing the placement plate 8, heavy objects can be placed in the placement plate 8, which can then be fixed by the main ladder 1 and auxiliary ladder 4, increasing the weight of the insulator and effectively increasing the stability of the insulated ladder. By providing the sliding box 9, heavy objects can be placed in the sliding box 9. By sliding the sliding box 9 on the placement plate 8, the center position of the insulated ladder can be changed. During use, the center of gravity of the insulated ladder can be adjusted according to the weight of the workers, further ensuring the stability and safety of the insulator.

[0030] The swing rod 6 includes a sleeve 61 and a slide rod 62. One end of the sleeve 61 is hinged to the main ladder 1, and the other end of the sleeve 61 has an opening. One end of the slide rod 62 slides inside the sleeve 61, and the other end of the slide rod 62 is hinged to a slider. A transverse sliding groove 601 is provided on the side wall of the sleeve, penetrating the side wall of the sleeve. A limit block 602 is slidably connected inside the transverse sliding groove 601. One end of the limit block 602 is connected to the slide rod 62, and the other end of the limit block 602 penetrates through the transverse sliding groove 601 and extends out of the transverse sliding groove 601. An internal threaded hole is provided on the limit block 602, penetrating both the limit block 602 and the slide rod 62. A limit pin 603 is provided in the internal threaded hole, and one end of the limit pin 603 abuts against the side of the sleeve 61 away from the transverse sliding groove 601. The other end of the positioning pin 603 extends out of the limiting block 602 and is provided with a rotating handle 604; in this embodiment, by setting the sliding rod 62 and the sleeve 61, the extension and retraction of the swing rod 6 can be realized, thereby adjusting the angle of the main ladder 1 and the auxiliary ladder 4, so that the safety ladder can be used in a variety of occasions. The limiting block 602 slides in the slide groove, which can prevent the sliding rod 62 from sliding out of the sleeve 61. By setting the positioning pin, the position of the sliding rod 62 can be fixed after adjusting the position of the sliding rod 62 in the sleeve 61.

[0031] The main ladder 1 has slide rails 702 on both side walls. The connecting seat 7 slides on the slide rails 702. The side wall of the connecting seat 7 has a fixing hole. A fixing nail 703 is threaded into the fixing hole. One end of the fixing nail 703 abuts against the slide rail 702. The other end of the fixing nail 703 extends out of the fixing hole and is provided with a fixing handle 704. In this embodiment, by setting the slide rail 702 and sliding the connecting seat 7 on the slide rail 702, the position of the connecting seat 7 can be adjusted according to the usage situation. It is also possible to slide the connecting seat 7 and the connecting ring upwards after the staff climbs up for the staff to use. By setting the fixing nail 703, the connecting seat 7 can be fixed in a certain position on the slide rail 702, thereby preventing the connecting seat 7 from sliding during use.

[0032] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An insulated ladder with a protective sleeve, characterized in that, include: The main ladder includes two support rods and ladder rods respectively set on the two support rods at both ends; the ladder rods are provided in multiple ways and are arranged parallel to each other. An auxiliary ladder has the same structure as the main ladder, with its top hinged to the top of the main ladder. Both the main ladder and the auxiliary ladder are inclined. An inner slide rail is provided on the support rod on the side of the auxiliary ladder closest to the main ladder. A swing rod, one end of which is hinged to the side of the main ladder near the auxiliary ladder, and the other end of which is hinged to a slider, which slides in the inner groove; A connecting seat is provided on the side wall of the main ladder, and a rope loop is provided on the connecting seat. The rope loop is connected to the worker's clothing through a safety rope.

2. An insulated ladder with a protective sleeve according to claim 1, characterized in that, The auxiliary ladder has inner sliding grooves on both support rods, and there are two swing rods with placement plates on them.

3. An insulated ladder with a protective sleeve according to claim 2, characterized in that, The placement tray is equipped with a sliding box that can slide on the placement tray, and the top of the sliding box has an opening.

4. An insulated ladder with a protective sleeve according to claim 1, characterized in that, The swing rod includes a sleeve and a slide rod. One end of the sleeve is hinged to the main ladder, and the other end of the sleeve is provided with an opening. One end of the slide rod slides inside the sleeve, and the other end of the slide rod is hinged to the slider.

5. An insulated ladder with a protective sleeve according to claim 4, characterized in that, A transverse sliding groove is provided on the side wall of the sleeve, the transverse sliding groove penetrates the side wall of the sleeve, a limiting block is slidably connected in the transverse sliding groove, one end of the limiting block is connected to the sliding rod, and the other end of the limiting block penetrates the transverse sliding groove and extends out of the transverse sliding groove.

6. An insulated ladder with a protective sleeve according to claim 5, characterized in that, The limiting block is provided with an internal threaded hole, which passes through the limiting block and the slide rod. A limiting pin is provided in the internal threaded hole. One end of the limiting pin abuts against the side of the sleeve away from the transverse sliding groove, and the other end of the limiting pin extends out of the limiting block and is provided with a rotating handle.

7. An insulated ladder with a protective sleeve according to claim 1, characterized in that, The main ladder is provided with slide rails on both sides, and the connecting seat slides on the slide rails. The side wall of the connecting seat is provided with a fixing hole, and a fixing nail is threaded into the fixing hole. One end of the fixing nail abuts against the slide rail, and the other end of the fixing nail extends out of the fixing hole and is provided with a fixing handle.