Special glass fiber reinforced plastic insulating ladder for electrician

The design of fiberglass rods and connecting handles enables quick replacement and maintenance of the steps of the fiberglass insulated ladder, solving the problem of complex disassembly in existing technologies, improving maintenance efficiency, and maintaining the ladder's stability and lightweight.

CN223839028UActive Publication Date: 2026-01-27HEBEI MORUI COMPOSITE MATERIALS CO LTD
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Patent Information

Application Number
CN202520003260.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2026-01-27
Estimated Expiration
2035-01-02

AI Technical Summary

Technical Problem

The steps of existing fiberglass insulated ladders are connected to the main frame by bolts or welding, which makes replacement time-consuming and laborious and may damage the main frame.

Method used

Featuring a fiberglass rod and connecting handle design, the square steps utilize a snap-fit ​​and sliding groove structure to achieve quick unlocking and fixing, simplifying the replacement process.

Benefits of technology

It simplifies the replacement and maintenance process of steps, reduces maintenance costs and time, while ensuring a secure connection and offering advantages such as corrosion resistance, insulation, and lightweight.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of ladders, and particularly relates to a special glass fiber reinforced plastic insulating ladder for electricians, which comprises two supporting main frames, a plurality of mounting grooves are formed in the inner side of the supporting main frame; square steps are mounted in the mounting grooves; the two ends of the square step are clamped in the mounting grooves in the supporting main frame; fixing blocks are mounted at the two ends of the square step; a fixing assembly is mounted on the fixing block; the two fixing assemblies are arranged on the same supporting main frame. A fixing hole is formed in the fixing block; a connecting assembly is arranged at the joint of the two supporting main frames; the glass fiber rod is mounted in the fixing hole in the fixing block; through the design of the glass fiber rod and the connecting handle, a user can easily unlock and fix the square step without complicated tools or technologies, so that the square step is very simple and rapid to replace and maintain, and the maintenance cost and time are reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of ladder technology, specifically an electrical-specific fiberglass insulated ladder. Background Technology

[0002] Fiberglass insulated ladders are made of insulated fiberglass and typically have a withstand voltage rating of 220KV. Types of fiberglass insulated ladders include fiberglass insulated single ladders, fiberglass insulated A-frame ladders, fiberglass insulated folding ladders, and fiberglass insulated lifting ladders (single-sided and double-sided).

[0003] Inside substations, workers can use fiberglass insulated ladders to safely approach high-voltage equipment to perform operations such as checking equipment connection points and replacing fuses, avoiding electric shock accidents. In telecommunications engineering, fiberglass insulated ladders are often used for the installation, commissioning, and maintenance of high-altitude equipment such as communication towers and base stations.

[0004] Currently, fiberglass insulated ladders are typically one-piece structures, with the steps connected to the main frame via bolts or welding. When a step is damaged and needs replacement, the connection between the step and the main frame is usually made by bolts or welding. This requires complex disassembly work, including unscrewing the bolts or cutting the welds. This is not only time-consuming and labor-intensive, but may also cause damage to the main frame. Therefore, to address the above issues, a fiberglass insulated ladder specifically designed for electricians is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a fiberglass insulated ladder for electrical engineering.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The electrical-specific fiberglass insulated ladder of this utility model includes a supporting main frame, of which two supporting main frames are provided; a plurality of mounting slots are opened on the inner side of the supporting main frame; square steps are installed in the mounting slots; the two ends of the square steps are engaged in the mounting slots on the supporting main frame; fixing blocks are installed at the two ends of the square steps; fixing components are installed on the fixing blocks; two fixing components are set on the same supporting main frame; fixing holes are opened on the fixing blocks; a connecting component is provided at the connection of the two supporting main frames; the fixing component includes a fiberglass rod; the fiberglass rod is installed in the fixing hole on the fixing block; a connecting handle is rotatably connected to the top of the fiberglass rod.

[0007] Preferably, a sliding guide rod is installed at the other end of the connecting handle; a connecting rod is connected to the sliding guide rod; the connecting rod is fixed to the main support frame; a sliding groove is provided on the connecting rod; the sliding guide rod is slidably connected in the sliding groove; the main support frame and the square steps are made of fiberglass.

[0008] Preferably, a fixing block is installed on the main support frame; a rubber leg pad is installed on the fixing block.

[0009] Preferably, a positioning block is installed at one end of the step; a plurality of positioning slots are provided on one side of the main support frame; and the positioning block is engaged in the positioning slot.

[0010] Preferably, the connecting assembly includes a mounting plate and connecting bolts; the mounting plate overlaps at the connection point of the two main support frames; the connecting bolts are mounted on the mounting plate; the connecting bolts pass through the main support frames and are mounted on the mounting plate.

[0011] Preferably, the square steps are equipped with anti-slip mats.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a fiberglass insulated ladder for electricians. Through the design of fiberglass rods and connecting handles, users can easily unlock and fix the square steps without complicated tools or techniques. This makes the replacement and maintenance of the square steps very simple and quick, reducing maintenance costs and time.

[0014] This utility model provides a fiberglass insulated ladder for electrical work. Fiberglass rods, as a high-strength material, can effectively ensure the stable connection between the square steps and the main support frame. By using fiberglass material and installing rubber leg pads at the bottom, the ladder has the advantages of corrosion resistance, insulation, and light weight. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the cross-section of the main support frame in this utility model;

[0019] Figure 3 This is a perspective view of the main support frame and the square steps separated in this utility model;

[0020] Figure 4 This is a perspective view of the connecting component in this utility model.

[0021] Legend:

[0022] 1. Support frame; 2. Square steps; 3. Mounting slot; 4. Fixing block; 5. Fixing hole; 61. Fiberglass rod; 62. Connecting handle; 63. Connecting rod; 64. Sliding guide rod; 65. Sliding groove; 7. Positioning block; 8. Positioning groove; 9. Rubber leg pad; 10. Fixing clip; 11. Anti-slip pad; 121. Mounting plate; 122. Connecting bolt. Detailed Implementation

[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figure 1 -4. This utility model provides a fiberglass insulated ladder for electrical work, including a main support frame 1, of which two main support frames 1 are provided; several mounting slots 3 are opened on the inner side of the main support frame 1; square steps 2 are installed in the mounting slots 3; the two ends of the square steps 2 are engaged in the mounting slots 3 on the main support frame 1; fixing blocks 4 are installed at the two ends of the square steps 2; fixing components are installed on the fixing blocks 4; two fixing components are set on the same main support frame 1; fixing holes 5 are opened on the fixing blocks 4; a connecting component is provided at the connection of the two main support frames 1; the fixing component includes a fiberglass rod 61; the fiberglass rod 61 is installed in the fixing holes 5 on the fixing blocks 4; a connecting handle 62 is rotatably connected to the top of the fiberglass rod 61;

[0026] During operation, the main support frame 1 consists of two hollow square fiberglass rods. Pulling the connecting handle 62 causes the connected fiberglass rod 61 to slide within the fixing hole 5 on the fixing block 4 connected to the square step 2. Simultaneously, the sliding guide rod 64 slides within the sliding groove 65, causing the fiberglass rod 61 to detach from the fixing block 4. By detaching the fiberglass rods 61 from the fixing blocks 4 at both ends of the step, the square step 2 is detached from the main support frame 1, allowing the square step 2 to be replaced. During assembly, one end of the step is inserted into the mounting groove 3, which is identical in shape to the square step 2. Then, the sliding guide rod 64 is slidably connected to the sliding groove 65 on the connecting rod 63. The sliding guide rod 64 slides within the sliding groove 65, thereby driving the fiberglass rod 61 on the connecting handle 62 to insert into the fixing hole 5, thus fixing the square step 2 and completing the assembly of the square step 2. Through the design of the fiberglass rod 61 and the connecting handle 62, users can easily unlock and fix the square step 2 without complicated tools or techniques, which makes the replacement and maintenance of the square step 2 very simple and quick, reducing maintenance costs and time. As a high-strength material, the fiberglass rod 61 can effectively ensure the stable connection between the square step 2 and the supporting main frame 1. By using fiberglass material and installing rubber leg pads 9 at the bottom, the ladder has the advantages of corrosion resistance, insulation, and light weight.

[0027] Furthermore, such as Figure 2 As shown, a sliding guide rod 64 is installed at the other end of the connecting handle 62; a connecting rod 63 is connected to the sliding guide rod 64; the connecting rod 63 is fixed to the main support frame 1; a sliding groove 65 is provided on the connecting rod 63; the sliding guide rod 64 is slidably connected in the sliding groove 65; the main support frame 1 and the square step 2 are made of fiberglass; the sliding groove 65 and the sliding guide rod 64 are set in a T-shape, and the T-shaped design of the sliding guide rod 64 and the sliding groove 65 makes the insertion and removal of the fiberglass rod 61 smoother and reduces the difficulty of operation.

[0028] Furthermore, such as Figure 1-3 As shown, a fixing block 10 is installed on the main support frame 1; a rubber leg pad 9 is installed on the fixing block 10; a positioning block 7 is installed at one end of the step; several positioning grooves 8 are opened on one side of the main support frame 1; the positioning block 7 is engaged in the positioning groove 8; during operation, the main support frame 1 consists of two hollow square fiberglass rods, and the fixing block 10 on the rubber leg pad 9 is engaged in the grooves at the top and bottom of the main support frame 1; when installing the square step 2 in the mounting groove 3, the square step 2 is engaged in the mounting groove 3, and then the positioning block 7 on the square step 2 is engaged in the positioning groove 8 on the main support frame 1, thereby facilitating the installation of the square step 2.

[0029] Furthermore, such as Figure 1 ,4 As shown, the connecting assembly includes a mounting plate 121 and connecting bolts 122. The mounting plate 121 overlaps the connection between the two main support frames 1. The connecting bolts 122 are mounted on the mounting plate 121. The connecting bolts 122 pass through the main support frame 1 and are mounted on the mounting plate 121. During operation, the connecting bolts 122 on the connecting assembly can be removed to separate the two main support frames 1. During installation, the connecting bolts 122 are fitted onto one side of the mounting plate 121, then passed through the mounting holes provided in the main support frame 1, and then through the other side of the mounting plate 121. The connecting bolts 122 are then fixed with nuts. The main support frames 1 are fixed with four connecting bolts 122, so that when the ladder is too long and difficult to store, the main support frames 1 can be disassembled for easy storage.

[0030] Furthermore, such as Figure 1 and 3 As shown, the square step 2 is equipped with an anti-slip mat 11. During operation, the main function of the anti-slip mat 11 is to increase the friction of the step surface, reduce slipping caused by wet step surface or shoe sole material, and make climbing more stable.

[0031] Working principle: During operation, the main support frame 1 consists of two square fiberglass rods. Pulling the connecting handle 62 causes the connected fiberglass rod 61 to slide within the fixing hole 5 on the fixing block 4 connected to the square step 2. Simultaneously, it causes the sliding guide rod 64 to slide within the sliding groove 65, allowing the fiberglass rod 61 to detach from the fixing block 4. By detaching the fiberglass rods 61 from the fixing blocks 4 at both ends of the step, the square step 2 is detached from the main support frame 1, allowing for the replacement of the square step 2. During assembly, one end of the step is inserted into the mounting groove 3. The mounting groove 3 has the same shape as the square step 2. The sliding guide rod 64 is then slidably connected to the sliding groove 65 on the connecting rod 63. As the sliding guide rod 64 slides in the sliding groove 65, it drives the fiberglass rod 61 on the connecting handle 62 to be inserted into the fixing hole 5, thereby fixing the square step 2 and completing the assembly of the square step 2. Through the design of the fiberglass rod 61 and the connecting handle 62, users can easily unlock and fix the square step 2 without complicated tools or techniques. This makes the replacement and maintenance of the square step 2 very simple and quick, reducing maintenance costs and time.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An electrical-specific fiberglass insulated ladder, comprising a supporting main frame (1), characterized in that: Two main support frames (1) are provided; several mounting slots (3) are provided on the inner side of the main support frame (1); square steps (2) are installed in the mounting slots (3); the two ends of the square steps (2) are engaged in the mounting slots (3) on the main support frame (1); fixing blocks (4) are installed at the two ends of the square steps (2); fixing components are installed on the fixing blocks (4); two fixing components are provided on the same main support frame (1); fixing holes (5) are provided on the fixing blocks (4); a connecting component is provided at the connection of the two main support frames (1); the fixing component includes a fiberglass rod (61); the fiberglass rod (61) is installed in the fixing holes (5) on the fixing blocks (4); a connecting handle (62) is rotatably connected to the top of the fiberglass rod (61).

2. The electrical-specific fiberglass insulated ladder as described in claim 1, characterized in that: The other end of the connecting handle (62) is equipped with a sliding guide rod (64); a connecting rod (63) is connected to the sliding guide rod (64); the connecting rod (63) is fixed on the main support frame (1); a sliding groove (65) is provided on the connecting rod (63); the sliding guide rod (64) is slidably connected in the sliding groove (65); the main support frame (1) and the square step (2) are made of fiberglass.

3. The electrical-specific fiberglass insulated ladder as described in claim 1, characterized in that: A fixing block (10) is installed on the main support frame (1); a rubber leg pad (9) is installed on the fixing block (10).

4. The electrical-specific fiberglass insulated ladder as described in claim 1, characterized in that: A positioning block (7) is installed at one end of the step; a number of positioning slots (8) are opened on one side of the main support frame (1); the positioning block (7) is engaged in the positioning slot (8).

5. The electrical-specific fiberglass insulated ladder as described in claim 1, characterized in that: The connecting assembly includes a mounting plate (121) and connecting bolts (122); the mounting plate (121) overlaps at the connection of two supporting main frames (1); the connecting bolts (122) are mounted on the mounting plate (121); the connecting bolts (122) pass through the supporting main frames (1) and are mounted on the mounting plate (121).

6. The electrical-specific fiberglass insulated ladder as described in claim 1, characterized in that: The square step (2) is equipped with an anti-slip pad (11), and the main support frame (1) consists of two hollow square fiberglass rods.