Novel furnace door platform escape device

By designing a combination of a suspended platform and a ladder on the furnace door platform, a safe escape route is provided, solving the problem that workers cannot evacuate when the existing furnace door platform malfunctions, and achieving the effect of safe evacuation.

CN223921040UActive Publication Date: 2026-02-17TAIYUAN FOUR UNIONS HEAVY IND CO LTD
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Patent Information

Application Number
CN202520398609.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-02-17
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

The existing furnace door maintenance platform lacks an escape device in case of malfunction, which means that staff cannot evacuate safely when the lifting platform malfunctions, posing a serious threat to their lives.

Method used

An escape device for a furnace door platform, comprising a platform body, a lifting mechanism, and a basket mechanism, was designed. Through the combination of the basket base plate, guardrail, extension plate, sliding sleeve, guide rod, and fixing bolt, a safe escape path is provided, allowing workers to climb to the ladder and safely return to the ground in the event of a malfunction.

Benefits of technology

In the event of a malfunction in the lifting platform, staff can safely evacuate using extension panels and ladders, avoiding the risk of falling and ensuring personnel safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of safety equipment, and particularly relates to a novel furnace door platform escape device which comprises a platform body, a lifting mechanism and a hanging basket mechanism, the lifting mechanism is installed in the platform body, the hanging basket mechanism is installed at the output end of the lifting mechanism, and a crawling ladder is installed on the side surface of the platform body. The hanging basket mechanism comprises a hanging basket bottom plate, a guardrail, a door frame, an extension plate, a sliding sleeve, a guide rod, a threaded hole, a fixing bolt, a first fixing hole and a second fixing hole, the guardrail is connected to the surface of the hanging basket bottom plate, the door frame is installed on the side surface of the guardrail, the extension plate is embedded in the surface of the hanging basket bottom plate, and the sliding sleeve is connected to the bottom side of the extension plate. The inner wall of the hanging basket bottom plate penetrating through the sliding sleeve is connected with a guide rod, and a positioning mechanism is arranged between the hanging basket bottom plate and the extension plate. According to the fixing device, when the fixing bolt moves to the outside of the first fixing hole, the extension plate is pushed, when the extension plate drives the sliding sleeve to move to the other end of the guide rod, the fixing bolt reversely rotates in the threaded hole and can move towards the inside of the second fixing hole, and when the fixing bolt moves to the inside of the second fixing hole, the position of the extension plate can be fixed; and then, a worker can climb to the surface of the crawling ladder through the extension plate, so that when the device rises to a relatively high height and breaks down, the worker can safely return to the ground along the crawling ladder.
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Description

Technical Field

[0001] This utility model belongs to the field of safety equipment technology, specifically relating to a novel furnace door platform escape device. Background Technology

[0002] A furnace door maintenance platform is a device specifically designed for furnace door inspection and maintenance. It provides a stable working platform, allowing workers to perform inspection, maintenance, cleaning, and upkeep of the furnace door in a safe environment. A furnace door maintenance platform typically consists of a steel structure, a lifting system, and protective facilities. The steel structure serves as the platform's supporting frame, ensuring its stability and load-bearing capacity; the lifting system is responsible for raising and lowering the platform, allowing workers easy access to the furnace; and protective facilities such as guardrails and safety doors ensure the safety of workers on the platform.

[0003] Currently, a serious safety hazard exists in the field of furnace door maintenance: most existing furnace door maintenance platforms lack dedicated escape routes. This means that if these lifting platforms malfunction during operation—for example, due to power outages, mechanical failures, or control system malfunctions—the workers on the platform will face extreme difficulties. Not only will they be unable to continue their maintenance tasks, but more importantly, they lack a safe and effective escape route to quickly evacuate the danger zone. In this situation, the workers' lives will be severely threatened; they may suffer injury or even face death due to their inability to escape in time. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of furnace door platform escape device, which aims to solve the problem that existing furnace door maintenance platforms do not have fault escape devices, and once the lifting platform malfunctions, the staff cannot escape, causing great harm to the staff's life safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel furnace door platform escape device, comprising a platform body, a lifting mechanism, and a suspended basket mechanism. The lifting mechanism is installed inside the platform body, and the suspended basket mechanism is installed at the output end of the lifting mechanism. A ladder is installed on the side surface of the platform body. The suspended basket mechanism includes a suspended basket base plate, a guardrail, a gate frame, an extension plate, a sliding sleeve, a guide rod, threaded holes, fixing bolts, a first fixing hole, and a second fixing hole. The guardrail is connected to the surface of the suspended basket base plate, and the gate frame is installed on the side surface of the guardrail. The extension plate is fitted into the surface of the suspended basket base plate, and the sliding sleeve is connected to the bottom side of the extension plate. A guide rod is connected to the inner wall of the suspended basket base plate that penetrates the sliding sleeve. A positioning mechanism is provided between the suspended basket base plate and the extension plate.

[0006] As a preferred embodiment of the novel furnace door platform escape device of this utility model, the sliding sleeve and the guide rod are symmetrically arranged in two sets on the bottom side of the extension plate, and the sliding sleeve and the guide rod are slidably connected.

[0007] As a preferred embodiment of the novel furnace door platform escape device of this utility model, the positioning mechanism includes a threaded hole, a fixing bolt, a first fixing hole, and a second fixing hole. The side surface of the basket bottom plate is provided with a threaded hole, and a fixing bolt passes through the inside of the threaded hole. The side surface of the extension plate is provided with a first fixing hole, and the side surface of the extension plate is provided with a second fixing hole.

[0008] In a preferred embodiment of this novel furnace door platform escape device, the fixing bolt and the threaded hole are connected by a thread.

[0009] As a preferred embodiment of the novel furnace door platform escape device of this utility model, the first fixing hole and the second fixing hole are of the same size, and the fixing bolt is matched with the size of the first fixing hole.

[0010] As a preferred embodiment of the novel furnace door platform escape device of this utility model, the distance between the first fixing hole and the second fixing hole is the same as the maximum sliding distance of the sliding sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, when the fixing bolt moves to the outside of the first fixing hole, it pushes the extension plate. When the extension plate drives the sliding sleeve to the other end of the guide rod, the fixing bolt rotates in the reverse direction inside the threaded hole and can move into the inside of the second fixing hole. When the fixing bolt moves into the inside of the second fixing hole, it can fix the position of the extension plate. Then, the workers can climb to the surface of the ladder through the extension plate. In this way, when the device malfunctions after rising to a higher height, the workers can safely return to the ground by climbing the ladder. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model;

[0015] Figure 2 This is a top view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the suspended platform mechanism of this utility model;

[0017] Figure 4This is a schematic diagram of the connection structure between the bottom plate and the extension plate of the suspended basket of this utility model;

[0018] Figure 5 This is an exploded view of the connection structure between the bottom plate and the extension plate of the suspended basket of this utility model.

[0019] In the diagram: 1. Platform body; 2. Lifting mechanism; 3. Suspended platform mechanism; 301. Suspended platform base plate; 302. Guardrail; 303. Gantry; 304. Extension plate; 305. Sliding sleeve; 306. Guide rod; 307. Threaded hole; 308. Fixing bolt; 309. First fixing hole; 310. Second fixing hole; 4. Ladder. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5 This utility model provides the following technical solution: a novel furnace door platform escape device, comprising a platform body 1, a lifting mechanism 2, and a basket mechanism 3. The lifting mechanism 2 is installed inside the platform body 1, and the basket mechanism 3 is installed at the output end of the lifting mechanism 2. A ladder 4 is installed on the side surface of the platform body 1. The basket mechanism 3 includes a basket base plate 301, a guardrail 302, a door frame 303, an extension plate 304, a sliding sleeve 305, a guide rod 306, a threaded hole 307, a fixing bolt 308, a first fixing hole 309, and a second fixing hole 310. The guardrail 302 is connected to the surface of the basket base plate 301, and the door frame 303 is installed on the side surface of the guardrail 302. The extension plate 304 is fitted into the surface of the basket base plate 301, and the sliding sleeve 305 is connected to the bottom side of the extension plate 304. The guide rod 306 is connected to the inner wall of the basket base plate 301 that penetrates the sliding sleeve 305. A positioning mechanism is provided between the basket base plate 301 and the extension plate 304.

[0022] When the furnace door platform is in use, the staff can open the door frame 303 and enter the interior of the guardrail 302. Then, the lifting mechanism 2 can be operated. When the lifting mechanism 2 is running, it can drive the basket mechanism 3 to rise. When the basket mechanism 3 rises, it can drive the staff to move upward to the furnace door. At this time, the staff can perform maintenance on the furnace door.

[0023] Preferably, two sets of sliding sleeves 305 and guide rods 306 are symmetrically arranged on the bottom side of the extension plate 304, and the sliding sleeves 305 and guide rods 306 are slidably connected.

[0024] In practical use, when the extension plate 304 is subjected to a force, it can drive the sliding sleeve 305 to slide on the surface of the guide rod 306, which can restrict the movement direction of the extension plate 304.

[0025] Preferably, the positioning mechanism includes a threaded hole 307, a fixing bolt 308, a first fixing hole 309, and a second fixing hole 310. The side surface of the suspended basket base plate 301 is provided with a threaded hole 307, and the fixing bolt 308 passes through the inside of the threaded hole 307. The side surface of the extension plate 304 is provided with a first fixing hole 309, and the side surface of the extension plate 304 is provided with a second fixing hole 310.

[0026] Preferably, the fixing bolt 308 and the threaded hole 307 are connected by a thread.

[0027] In practical use, when the fixing bolt 308 rotates inside the threaded hole 307, it can move laterally through the threaded connection, thus adjusting the lateral position of the fixing bolt 308.

[0028] Preferably, the first fixing hole 309 and the second fixing hole 310 are the same size, and the fixing bolt 308 is matched with the size of the first fixing hole 309.

[0029] In practical use, when the fixing bolt 308 moves laterally to the inside of the first fixing hole 309, the position of the extension plate 304 can be fixed.

[0030] Preferably, the distance between the first fixing hole 309 and the second fixing hole 310 is the same as the maximum sliding distance of the sliding sleeve 305.

[0031] It should be noted that the extension plate 304 can prevent falls that could easily occur when crossing directly from the suspended platform 3 to the surface of the ladder 4, thus avoiding potential danger to workers.

[0032] Working principle: When the furnace door platform is in use, if the hoisting mechanism 3 malfunctions after being raised to the high position, the fixing bolt 308 can be rotated first. As the fixing bolt 308 rotates inside the threaded hole 307, it moves away from the first fixing hole 309. When the fixing bolt 308 moves to the outside of the first fixing hole 309, it can push the extension plate 304. When the extension plate 304 is pushed, it can cause the sliding sleeve 305 to slide on the surface of the guide rod 306. When the sliding sleeve 305 moves to the guide rod 306... When the extension plate 304 moves the second fixing hole 310 to the end of the fixing bolt 308, the fixing bolt 308 can be rotated in the opposite direction. The fixing bolt 308 can move into the second fixing hole 310 when it rotates in the opposite direction inside the threaded hole 307. When the fixing bolt 308 moves into the second fixing hole 310, the position of the extension plate 304 can be fixed. Then the worker can open the gantry 303 and stand on the extension plate 304, and then climb up the ladder 4 through the extension plate 304 and climb to the ground.

[0033] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A novel furnace door platform escape device, comprising a platform body (1), a lifting mechanism (2), and a suspended basket mechanism (3), characterized in that: The platform body (1) is equipped with a lifting mechanism (2) inside. The output end of the lifting mechanism (2) is equipped with a suspended basket mechanism (3). A ladder (4) is installed on the side surface of the platform body (1). The suspended basket mechanism (3) includes a suspended basket base plate (301), a guardrail (302), a gantry (303), an extension plate (304), a sliding sleeve (305), a guide rod (306), a threaded hole (307), a fixing bolt (308), a first fixing hole (309), and a second fixing hole (300). 10) A guardrail (302) is connected to the surface of the suspended basket base plate (301). A gantry (303) is installed on the side surface of the guardrail (302). An extension plate (304) is fitted onto the surface of the suspended basket base plate (301). A sliding sleeve (305) is connected to the bottom side of the extension plate (304). A guide rod (306) is connected to the inner wall of the suspended basket base plate (301) that passes through the sliding sleeve (305). A positioning mechanism is provided between the suspended basket base plate (301) and the extension plate (304).

2. The novel furnace door platform escape device according to claim 1, characterized in that: The sliding sleeve (305) and the guide rod (306) are symmetrically arranged in two sets on the bottom side of the extension plate (304), and the sliding sleeve (305) and the guide rod (306) are slidably connected.

3. The novel furnace door platform escape device according to claim 1, characterized in that: The positioning mechanism includes a threaded hole (307), a fixing bolt (308), a first fixing hole (309), and a second fixing hole (310). The side surface of the bottom plate (301) of the suspended basket is provided with a threaded hole (307), and the fixing bolt (308) passes through the inside of the threaded hole (307). The side surface of the extension plate (304) is provided with a first fixing hole (309), and the side surface of the extension plate (304) is provided with a second fixing hole (310).

4. The novel furnace door platform escape device according to claim 3, characterized in that: The fixing bolt (308) and the threaded hole (307) are connected by a thread.

5. A novel furnace door platform escape device according to claim 4, characterized in that: The first fixing hole (309) and the second fixing hole (310) are the same size, and the fixing bolt (308) is matched with the size of the first fixing hole (309).

6. The novel furnace door platform escape device according to claim 5, characterized in that: The distance between the first fixing hole (309) and the second fixing hole (310) is the same as the maximum sliding distance of the sliding sleeve (305).