Convenient and fast climbing device for overhauling boiler denitration equipment

The segmented ladder and grid tread design solves the problems of inconvenient transportation and poor safety of traditional climbing devices, providing a flexible installation method and effective protection measures, ensuring the safe and efficient maintenance of boiler denitrification equipment.

CN224187482UActive Publication Date: 2026-05-01HEFEI SUYUAN MECHANICAL & ELECTRICAL EQUIP INSTALLATION ENG CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI SUYUAN MECHANICAL & ELECTRICAL EQUIP INSTALLATION ENG CO
Filing Date
2025-05-16
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional climbing devices are inconvenient to transport and install, have poor step safety, lack protective measures, and cannot be effectively sealed, affecting the safety of maintenance personnel and the service life of the device.

Method used

A segmented ladder was designed, equipped with a grid tread and a protective cage. The grid tread slopes downwards, and the protective cage forms an enclosed space with doors for sealing. It adapts to the height and location of different boiler denitrification equipment and provides a stable and safe climbing passage.

Benefits of technology

It improves the flexibility and adaptability of the climbing device, ensures the safety and stability of the climbing process, reduces the risk of slipping, prevents accidental falls and device damage, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of boiler denitration equipment, and discloses a convenient climbing device for overhauling boiler denitration equipment, which comprises a sectional ladder body matched with overhauling personnel to climb, a protective cage and a door leaf, the sectional ladder bodies are spliced to form the climbing ladder, grating pedals are arranged on the sectional ladder bodies, a stable treading platform is provided for maintainers, and the grating pedals are downwards and obliquely arranged in the direction of the boiler denitration equipment; the protective cage is mounted around the sectional ladder body and forms a relatively closed space, so that the maintainer can be prevented from accidentally falling in the climbing process; the door leaf is used for closing the grating pedal and closing the protection cage. The grating pedals not only provide stable support and accord with human engineering, but also can be self-cleaned, the protective cage surrounds the sectional ladder body to form a closed space, personnel are effectively prevented from falling off, the door leaf is convenient to operate, and accidents can be prevented when the door leaf is closed.
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Description

A convenient climbing device for maintenance of boiler denitrification equipment Technical Field

[0001] This utility model belongs to the technical field of boiler denitrification equipment, specifically relating to a convenient climbing device for the maintenance of boiler denitrification equipment. Background Technology

[0002] In the daily maintenance and repair of boiler denitrification equipment, maintenance personnel need to frequently reach different heights of the equipment for inspection, repair, and debugging. To meet this need, climbing devices have become indispensable tools.

[0003] Traditional climbing devices are primarily one-piece ladders. However, with the diversification and increasing scale of boiler denitrification equipment, these ladders have gradually revealed numerous limitations in practical applications. In terms of transportation, one-piece ladders are bulky and heavy, making them difficult to move and requiring significant manpower and resources. Regarding installation, they are difficult to adjust flexibly to suit the height and location of different boiler denitrification equipment. For maintenance of equipment at specific heights or locations, they may not provide suitable climbing access, hindering the smooth progress of maintenance work. Furthermore, the treads of traditional ladders are typically simple in design, easily accumulating rainwater, dust, and debris, making the surface slippery and increasing the risk of slips for maintenance personnel, seriously threatening their personal safety. Simultaneously, maintenance personnel lack effective protective measures during climbing, especially when climbing higher ladders; in the event of an accident, a fall can easily occur, causing serious injury. Moreover, when not in use, traditional climbing devices cannot effectively prevent unauthorized personnel from entering, potentially damaging the device and affecting its lifespan and safety.

[0004] In view of this, we propose a convenient climbing device for the maintenance of boiler denitrification equipment to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the technical problems of inconvenient transportation and installation, poor pedal safety, lack of protective measures, and inability to effectively seal the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A convenient climbing device for maintenance of boiler denitrification equipment includes:

[0008] The segmented ladder is designed for easy climbing by maintenance personnel. The segmented ladder is assembled to form a climbing ladder, providing maintenance personnel with a passage from the ground to the maintenance position of the boiler denitrification equipment. The segmented ladder is equipped with grid steps, which provide maintenance personnel with a stable stepping platform. The grid steps are inclined downwards towards the boiler denitrification equipment.

[0009] The safety cage, installed around the segmented ladder to form a relatively enclosed space, can prevent maintenance personnel from accidentally falling during the climbing process;

[0010] Door panels are used to close the grille pedals and enclose the protective cage.

[0011] As a preferred embodiment, the segmented ladder also includes two vertical plates symmetrically arranged on both sides with a cross-section of U-shape, and mounting feet arranged at equal intervals on the two vertical plates, which are then installed onto the boiler denitrification equipment.

[0012] Preferably, the grille tread is located between two uprights. The grille tread includes two side plates on both sides and a grille plate located between the two side plates. The two side plates are fixed to the two uprights by bolts.

[0013] Preferably, mounting plates A are welded to the outer sides of both the upper and lower ends of the two uprights. When the two uprights are joined together, mounting plates B are joined to the outer sides of the two mounting plates A. The two uprights, mounting plates A and B are fixed together by the cooperation of screws and nuts that pass through the uprights, mounting plates A and B, thereby splicing the two segmented ladders together.

[0014] Preferably, the door leaf includes a door panel covering the outer side of the segmented trapezoid and a grid baffle fixed to the bottom of the door panel.

[0015] Preferably, one side of the door panel is hinged to one of the uprights of the bottom segmented ladder, and the other side is mechanically locked to another upright of the bottom segmented ladder.

[0016] Preferably, the grille baffle is attached to the bottom of the cage.

[0017] Preferably, the cage includes several arc-shaped rings arranged vertically at equal intervals and connecting strips arranged annularly at equal intervals on the outer side of the arc-shaped rings. The two ends of the arc-shaped rings are fixed to the two side uprights by bolts.

[0018] Compared with the prior art, the technical effects and advantages of this utility model are:

[0019] 1. This boiler denitrification equipment maintenance access ladder features a segmented design compared to a one-piece ladder. Each segment is relatively small in size and weight, facilitating handling and transportation. During installation, it can be flexibly assembled and connected according to the specific location and height requirements of the boiler denitrification equipment, greatly improving installation efficiency and reducing installation difficulty. The number and assembly of the segmented ladder sections can be freely combined according to the height and location differences of different boiler denitrification equipment, adjusting the length and shape of the ladder to ensure precise access to maintenance positions. It possesses strong adaptability and versatility.

[0020] 2. The grating steps provide stable footing for maintenance personnel, ensuring safety and stability during climbing. Furthermore, the design of the grating steps allows rainwater, dust, and debris to fall through the grating gaps, keeping the step surface clean and dry and reducing the risk of slipping. The grating steps are angled downwards towards the boiler denitrification equipment, conforming to human climbing habits and mechanical principles. When maintenance personnel approach the equipment, the angled steps allow them to get closer more naturally, facilitating subsequent maintenance operations and improving work convenience and efficiency. The uprights are simply and firmly assembled using mounting plates A and B, along with bolts and nuts, ensuring the structural stability and safety of the entire climbing ladder.

[0021] 3. The cage creates a relatively enclosed space, effectively preventing maintenance personnel from accidentally falling during climbing, especially when climbing higher ladders, providing extra protection and enhancing their sense of security. The vertically arranged and circular arc-shaped rings and connecting strips form a stable structure and are tightly connected to the segmented ladder body, further improving the stability and reliability of the entire climbing device. The structure composed of arc-shaped rings and connecting strips provides protection without obstructing the maintenance personnel's view, allowing them to clearly observe their surroundings during climbing and avoiding accidents caused by obstructed vision.

[0022] 4. When the door is closed, it prevents people or objects from accidentally stepping onto the grille pedals, avoiding unnecessary safety accidents. Simultaneously, the enclosed cage prevents small animals from entering, reducing damage and interference with the climbing device. The door panel's hinged joint and mechanical lock design make opening and closing the door very convenient, allowing maintenance personnel to operate easily as needed, improving work efficiency. The grille baffle connects to the bottom of the cage, preventing debris, tools, etc., from falling from the bottom of the cage and causing injury to personnel and equipment below. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of this utility model;

[0024] Figure 2 is a schematic diagram of the opening structure of the door leaf of this utility model;

[0025] Figure 3 is a structural schematic diagram of the segmented ladder of this utility model;

[0026] Figure 4 is a schematic diagram of the structure of the protective cage of this utility model;

[0027] Figure 5 shows the state diagram of the two segmented ladder bodies of this utility model when they are connected.

[0028] Figure 6 is a structural schematic diagram of the grille pedal of this utility model.

[0029] In the picture:

[0030] 1. Segmented ladder body; 11. Upright plate; 12. Grille tread; 13. Mounting feet; 14. Side plate; 15. Grille plate; 16. Mounting plate A; 17. Mounting plate B; 18. Threaded rod; 19. Nut;

[0031] 2. Protective cage; 21. Arc ring; 22. Connecting strip;

[0032] 3. Door leaf; 31. Door panel; 32. Grille baffle. Detailed Implementation

[0033] 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.

[0034] The present application will be further described in detail below with reference to Figures 1 to 6.

[0035] This application discloses a convenient climbing device for the maintenance of boiler denitrification equipment, including a segmented ladder 1, a protective cage 2, and a door 3 to assist maintenance personnel in climbing.

[0036] The segmented ladder body 1, assembled together, forms a climbing ladder, providing maintenance personnel with a passage from the ground to the boiler denitrification equipment maintenance location. Compared to a one-piece ladder, the segmented design facilitates transportation and installation. The length and shape of the climbing ladder can be flexibly adjusted according to actual needs to adapt to the maintenance requirements of boiler denitrification equipment at different heights and locations. The segmented ladder body 1 is equipped with grid-like footboards 12, providing a stable platform for maintenance personnel. Personnel can place their feet on the grid-like footboards 12 and climb the ladder using the assistance of the ladder, ensuring safety and stability during the climbing process.

[0037] The segmented ladder 1 also includes two vertical plates 11 symmetrically arranged on both sides with a cross-section of U-shape, several grid pedals 12 inclined downward toward the boiler denitrification equipment and arranged at equal distances between the two vertical plates 11, and mounting feet 13 arranged at equal distances on the two vertical plates 11. The mounting feet 13 are installed on the boiler denitrification equipment.

[0038] The grille pedal 12 is angled downwards towards the boiler denitrification equipment, which is more in line with human climbing habits and mechanical principles. When maintenance personnel climb to approach the boiler denitrification equipment, the angled pedal allows them to get closer to the equipment more naturally, facilitating subsequent maintenance operations.

[0039] The grating step 12 includes two side plates 14 on both sides and a grating plate 15 located between the two side plates 14. The two side plates 14 are fixed to two upright plates 11 by bolts. The design of the grating step 12 allows rainwater, dust, debris, etc. to fall through the gaps in the grating, preventing them from accumulating on the step, keeping the step surface clean and dry, reducing the risk of slipping, and improving the safety of maintenance personnel when climbing.

[0040] Mounting plates A16 are welded to the outer sides of both the upper and lower ends of the two upright plates 11. When the two upright plates 11 are joined together, mounting plates B17 are joined to the outer sides of the two mounting plates A16. The upper and lower upright plates 11, mounting plates A16, and mounting plates B17 are fixed together by the cooperation of screws 18 and nuts 19 that pass through the upright plates 11, mounting plates A16, and mounting plates B17, thereby splicing the two segmented ladder bodies 1 together.

[0041] The mounting plates A16 welded to the outer sides of the upper and lower ends of the upright plate 11, along with the mating mounting plates B17, securely connect the upper and lower segmented ladder bodies 1 together through the cooperation of screws 18 and nuts 19. This splicing method is simple and reliable, ensuring the structural stability and safety of the entire climbing ladder.

[0042] The cage 2 is installed around the segmented ladder 1 and forms a relatively enclosed space to prevent maintenance personnel from accidentally falling during the climbing process. The cage 2 includes several arc-shaped rings 21 arranged vertically at equal intervals and connecting strips 22 arranged annularly at equal intervals on the outer side of the arc-shaped rings 21. The two ends of the arc-shaped rings 21 are fixed to the two side uprights 11 by bolts.

[0043] The safety cage 2 is installed around the segmented ladder 1, forming a relatively enclosed space that effectively prevents maintenance personnel from accidentally falling during climbing. Especially when climbing higher ladders, the safety cage 2 provides additional protection for maintenance personnel, enhancing their sense of security.

[0044] Several vertically equidistant arc-shaped rings 21 and annularly equidistant connecting strips 22 constitute the stable structure of the cage 2. The two ends of the arc-shaped rings 21 are fixed to the two side uprights 11 by bolts, so that the cage 2 is tightly connected to the segmented ladder 1, further improving the stability and reliability of the entire climbing device.

[0045] The structure consisting of the arc ring 21 and the connecting strip 22 provides protection without obstructing the view of maintenance personnel, allowing them to clearly observe the surrounding environment during climbing and avoiding accidents caused by obstructed vision.

[0046] Door 3 is used to close the grille pedal 12 and enclose the cage 2. Door 3 includes a door panel 31 that covers the outer side of the segmented ladder 1 and a grille baffle 32 fixed to the bottom of the door panel 31. One side of the door panel 31 is hinged to one of the uprights 11 of the bottom segmented ladder 1, and the other side is mechanically locked to the other upright 11 of the bottom segmented ladder 1. The grille baffle 32 abuts against the bottom of the cage 2.

[0047] Door 3 can close the grille pedal 12 and enclose the protective cage 2. When maintenance work is completed or the climbing device is not needed, closing door 3 prevents personnel or objects from accidentally stepping on the grille pedal 12, avoiding unnecessary safety accidents. One side of door panel 31 is hinged to the vertical plate 11 of the bottom segmented ladder 1, and the other side is mechanically locked to another vertical plate 11. This design makes opening and closing door 3 very convenient. Maintenance personnel can easily open or close door 3 as needed, improving work efficiency. The grille baffle 32 connects to the bottom of the protective cage 2, further enhancing the protective performance of the cage 2. It prevents debris, tools, etc., from falling from the bottom of the cage 2 and causing injury to personnel and equipment below.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A convenient climbing device for maintenance of boiler denitrification equipment, characterized in that, include: The segmented ladder (1) is used to facilitate climbing by maintenance personnel. The segmented ladder (1) is spliced ​​together to form a climbing ladder, providing maintenance personnel with a passage from the ground to the maintenance position of the boiler denitrification equipment. The segmented ladder (1) is equipped with a grid step (12) to provide maintenance personnel with a stable stepping platform. The grid step (12) is inclined downward towards the boiler denitrification equipment. The protective cage (2) is installed around the segmented ladder (1) to form a relatively closed space, which can prevent maintenance personnel from falling accidentally during the climbing process. The door (3) is used to close the grid step (12) and close the protective cage (2).

2. The convenient climbing device for maintenance of boiler denitrification equipment according to claim 1, characterized in that: The segmented ladder (1) also includes two vertical plates (11) symmetrically arranged on both sides with a cross section of U-shape, and mounting feet (13) arranged at equal intervals on the two vertical plates (11). The mounting feet (13) are installed on the boiler denitrification equipment.

3. The convenient climbing device for maintenance of boiler denitrification equipment according to claim 2, characterized in that: The grating tread (12) is located between two upright plates (11). The grating tread (12) includes two side plates (14) on both sides and a grating plate (15) located between the two side plates (14). The two side plates (14) are fixed to the two upright plates (11) by bolts.

4. The convenient climbing device for maintenance of boiler denitrification equipment according to claim 2, characterized in that: Mounting plates A (16) are welded to the outer sides of the upper and lower ends of the two upright plates (11). When the two upright plates (11) are joined together, mounting plates B (17) are joined to the outer sides of the two mounting plates A (16). The upper and lower upright plates (11), mounting plates A (16), and mounting plates B (17) are fixed together by the cooperation of screws (18) and nuts (19) that pass through the upright plates (11), mounting plates A (16), and mounting plates B (17), thereby splicing the two segmented ladder bodies (1) together.

5. The convenient climbing device for maintenance of boiler denitrification equipment according to claim 2, characterized in that: The door leaf (3) includes a door panel (31) covering the outer side of the segmented ladder (1) and a grid baffle (32) fixed to the bottom of the door panel (31).

6. The convenient climbing device for maintenance of boiler denitrification equipment according to claim 5, characterized in that: One side of the door panel (31) is hinged to one of the uprights (11) of the bottom segmented ladder (1), and the other side is locked to the other upright (11) of the bottom segmented ladder (1) by a mechanical lock.

7. The convenient climbing device for maintenance of boiler denitrification equipment according to claim 6, characterized in that: The grid baffle (32) is attached to the bottom of the cage (2).

8. The convenient climbing device for maintenance of boiler denitrification equipment according to claim 2, characterized in that: The cage (2) includes several arc rings (21) arranged vertically at equal intervals and connecting strips (22) arranged in a ring at equal intervals on the outer side of the arc rings (21). The two ends of the arc rings (21) are fixed to the two side uprights (11) by bolts.