Crawling ladder structure for roasting furnace
By designing components such as the transverse support rod, anti-roll plate, and locking limiter in the calcining furnace ladder structure, the instability and safety hazards of the calcining furnace ladder during use were solved, achieving higher stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN WANRUI CARBON
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-03
AI Technical Summary
Existing calcining furnace ladders are prone to tipping over during use due to space constraints inside the calcining furnace chamber and slippage between the ladder and the furnace chamber wall or floor, posing a safety hazard.
A ladder structure including horizontal support rods, vertical support rods, anti-roll inserts, anti-rotation mechanisms, and locking limiters was designed. The stability and safety of the ladder are enhanced through the coordinated arrangement of these components.
It effectively prevents the ladder from shifting left and right or rolling back and forth inside the roasting furnace, significantly improving the stability and safety of the ladder and avoiding the risk of tipping over during use.
Smart Images

Figure CN224452694U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of climbing equipment technology, specifically to a ladder structure for a roasting furnace. Background Technology
[0002] The calcining furnace is a machine that can significantly reduce sintering temperature and greatly reduce energy consumption. It greatly helps protect the environment, improves efficiency, and shortens sintering time. The calcining furnace is large, and its bottom is high above the ground; during loading, operators need to descend to the bottom of the furnace, making ladders an indispensable tool.
[0003] When using a regular ladder to enter the roasting furnace, the ladder is usually set up at an angle with one end against the inner wall of the furnace chamber and the other end against the floor. On the one hand, the ladder is limited by the layout of the space inside the roasting furnace chamber. On the other hand, the ladder is prone to sliding between itself and the inner wall or floor of the furnace chamber, causing it to tip over. This results in a lack of effective safety protection when using the ladder, making it prone to tipping over and posing a safety hazard. Utility Model Content
[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing a ladder structure for a roasting furnace.
[0005] The technical solution of this utility model: a ladder structure for a roasting furnace, comprising:
[0006] A horizontal support rod has a mounting sleeve that is slidably connected to its surface, and a vertical support rod is fixedly connected to the mounting sleeve.
[0007] The foot pedals are provided in multiple units and are fixedly connected to the vertical support rod. The foot pedals are evenly distributed on both sides of the vertical support rod.
[0008] Two sets of anti-roll plates are provided, with the anti-roll plates located at both ends of the transverse support rod;
[0009] The anti-rotation mechanism is provided in two sets, with the two sets of anti-rotation mechanisms respectively located at both ends of the mounting sleeve;
[0010] The locking limiters are provided in four sets, all of which are installed on the transverse support rod. Two sets of locking limiters are used to limit the movement between the mounting sleeve and the transverse support rod, and the other two sets of locking limiters are used to limit the movement between the transverse support rod and the roasting furnace.
[0011] Preferably, the locking limiter includes a movable cylinder, an adjusting cylinder, a limiting component, and an adjusting component; the movable cylinder is slidably mounted on the transverse support rod, the adjusting cylinder is fixedly mounted on the movable cylinder, one end of the adjusting cylinder passes through the movable cylinder and is connected to the movable cylinder, the limiting component is disposed inside the movable cylinder, one end of the limiting component extends to the transverse support rod, the adjusting component is disposed inside the adjusting cylinder, one end of the adjusting component is connected to the limiting component, and the other end of the adjusting component passes through the adjusting cylinder and extends to the outside of the adjusting cylinder.
[0012] Preferably, the limiting component includes a movable disc and a limiting block; the movable disc is slidably disposed in the movable cylinder and extends into the adjusting cylinder, the limiting block is fixedly connected to the movable disc and extends into the movable cylinder, and the surface of the transverse support rod is provided with a limiting tooth groove that matches the limiting block.
[0013] Preferably, the adjusting assembly includes an adjusting rod and a return spring; one end of the adjusting rod is fixedly connected to the movable disc, and the other end of the adjusting rod passes through the adjusting cylinder and extends to the outside of the adjusting cylinder; one end of the return spring is connected to the movable disc, and the other end of the return spring is connected to the inner wall of the adjusting cylinder.
[0014] Preferably, mounting holes are provided at both ends of the transverse support rod, and the anti-roll plate is detachably connected to the transverse support rod through the mounting holes.
[0015] Preferably, the anti-rotation mechanism includes a first end face toothed ring and a second end face toothed ring; the first end face toothed ring is fixedly connected to the mounting sleeve, the second end face toothed ring is fixedly connected to the movable cylinder, and the first end face toothed ring and the second end face toothed ring are adapted to each other.
[0016] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0017] This utility model, through the coordinated arrangement of the locking limiter, anti-roll plate, and transverse support rod, not only greatly reduces the impact of the internal structure of the roasting furnace on the installation of the ladder, but also effectively prevents lateral displacement and forward and backward rolling during ladder operation, significantly improving the stability and safety of the ladder. The coordinated arrangement of the locking limiter and anti-rotation mechanism limits the installation sleeve, preventing the installation sleeve from rotating during use, further improving the stability of the ladder during use. Attached Figure Description
[0018] Figure 1 This is a perspective view of one embodiment of the present invention;
[0019] Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle;
[0020] Figure 3 This is a cross-sectional view of a locking limiter in one embodiment of the present invention;
[0021] Figure 4 This is a perspective view of an anti-rolling insert in one embodiment of the present invention.
[0022] Reference numerals in the attached drawings: 1. Horizontal support rod; 21. First end face toothed ring; 22. Second end face toothed ring; 3. Mounting sleeve; 41. Movable cylinder; 42. Adjusting cylinder; 431. Movable disc; 432. Limiting block; 433. Limiting tooth groove; 441. Adjusting rod; 442. Return spring; 5. Vertical support rod; 6. Foot pedal; 7. Anti-roll plate. Detailed Implementation
[0023] Example 1
[0024] like Figure 1-4 As shown, the present invention proposes a ladder structure for a roasting furnace, including a horizontal support rod 1, a foot pedal 6, an anti-rolling insert 7, an anti-rotation mechanism, and a locking limiter.
[0025] A mounting sleeve 3 is slidably connected to the surface of the horizontal support rod 1. A vertical support rod 5 is fixedly connected to the mounting sleeve 3. Mounting holes are opened through both ends of the horizontal support rod 1. The anti-rolling insert 7 is detachably connected to the horizontal support rod 1 through the mounting holes.
[0026] Multiple foot pedals 6 are provided, and the foot pedals 6 are fixedly connected to the vertical support rod 5. The foot pedals 6 are evenly distributed on both sides of the vertical support rod 5.
[0027] Two sets of anti-roll plates 7 are provided, and the anti-roll plates 7 are located at both ends of the transverse support rod 1;
[0028] Two sets of anti-rotation mechanisms are provided, and the two sets of anti-rotation mechanisms are respectively located at both ends of the mounting sleeve 3;
[0029] There are four sets of locking limiters, all of which are installed on the transverse support rod 1. Two sets of locking limiters are used to limit the movement between the mounting sleeve 3 and the transverse support rod 1, and the other two sets of locking limiters are used to limit the movement between the transverse support rod 1 and the roasting furnace.
[0030] Example 2
[0031] like Figure 2-3As shown, the present invention discloses a ladder structure for a roasting furnace. Compared with Embodiment 1, this embodiment also specifically discloses the structure of a locking limiter. The locking limiter includes a movable cylinder 41, an adjusting cylinder 42, a limiting component, and an adjusting component. The movable cylinder 41 is slidably mounted on the transverse support rod 1, and the adjusting cylinder 42 is fixedly mounted on the movable cylinder 41. One end of the adjusting cylinder 42 passes through the movable cylinder 41 and is connected to it. The limiting component is disposed inside the movable cylinder 41, and one end of the limiting component extends to the transverse support rod 1. The adjusting component is disposed inside the adjusting cylinder 42, and one end of the adjusting component is connected to the limiting component. The other end of the adjusting component passes through the adjusting cylinder 42 and extends to the outside of the adjusting cylinder 42.
[0032] Example 3
[0033] like Figure 3 As shown, the present invention discloses a ladder structure for a roasting furnace. Compared with Embodiment 2, this embodiment also specifically discloses the structure of a limiting component. The limiting component includes a movable disk 431 and a limiting block 432. The movable disk 431 is slidably disposed in the movable cylinder 41 and extends into the adjusting cylinder 42. The limiting block 432 is fixedly connected to the movable disk 431 and extends into the movable cylinder 41. The surface of the transverse support rod 1 is provided with a limiting tooth groove 433 that is adapted to the limiting block 432.
[0034] Example 4
[0035] like Figure 3 As shown, the present invention discloses a ladder structure for a roasting furnace. Compared with Embodiment 3, this embodiment also specifically discloses the structure of the adjustment component. The adjustment component includes an adjustment rod 441 and a return spring 442. One end of the adjustment rod 441 is fixedly connected to the movable plate 431, and the other end of the adjustment rod 441 passes through the adjustment cylinder 42 and extends to the outside of the adjustment cylinder 42. One end of the return spring 442 is connected to the movable plate 431, and the other end of the return spring 442 is connected to the inner wall of the adjustment cylinder 42.
[0036] Example 5
[0037] like Figure 2 As shown, the present invention discloses a ladder structure for a roasting furnace. Compared with embodiment four, this embodiment also specifically discloses the structure of an anti-rotation mechanism. The anti-rotation mechanism includes a first end face toothed ring 21 and a second end face toothed ring 22. The first end face toothed ring 21 is fixedly connected to the mounting sleeve 3, and the second end face toothed ring 22 is fixedly connected to the movable cylinder 41. The first end face toothed ring 21 and the second end face toothed ring 22 are adapted to each other.
[0038] During assembly, insert the transverse support rod 1 into the mounting sleeve 3. First, adjust the position of the locking limiters at both ends of the mounting sleeve 3 so that the teeth of the second end face toothed ring 22 and the first end face toothed ring 21 are engaged. Under the action of the spring force of the return spring 442, the limiting block 432 is inserted into the limiting tooth groove 433 to limit the position of the mounting sleeve 3. Then, place the vertical support rod 5 into the roasting furnace and make the transverse support rod 1 lie horizontally on the roasting furnace. Insert the anti-roll plate 7 into the mounting holes at both ends of the transverse support rod 1. Adjust the position of the remaining two sets of locking limiters so that the remaining two sets of locking limiters are engaged with the inner wall of the roasting furnace to limit and fix the transverse support rod 1.
[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A ladder structure for a roasting furnace, characterized in that, include: A horizontal support rod (1) has a mounting sleeve (3) slidably connected to its surface, and a vertical support rod (5) is fixedly connected to the mounting sleeve (3). Multiple foot pedals (6) are provided. The foot pedals (6) are fixedly connected to the vertical support rod (5). The foot pedals (6) are evenly distributed on both sides of the vertical support rod (5). Anti-rolling inserts (7) are provided in two sets, and the anti-rolling inserts (7) are provided at both ends of the transverse support rod (1); The anti-rotation mechanism is provided in two sets, which are respectively located at both ends of the mounting sleeve (3); The locking limiters are provided in four sets. All locking limiters are set on the transverse support rod (1). Two sets of locking limiters are used to limit the installation sleeve (3) and the transverse support rod (1), and the other two sets of locking limiters are used to limit the transverse support rod (1) and the roasting furnace.
2. The cat ladder structure for a baking furnace according to claim 1, wherein The locking limiter includes a movable cylinder (41), an adjusting cylinder (42), a limiting component, and an adjusting component; the movable cylinder (41) is slidably mounted on the transverse support rod (1), the adjusting cylinder (42) is fixedly mounted on the movable cylinder (41), one end of the adjusting cylinder (42) passes through the movable cylinder (41) and is connected to the movable cylinder (41), the limiting component is located inside the movable cylinder (41), one end of the limiting component extends to the transverse support rod (1), the adjusting component is located inside the adjusting cylinder (42), one end of the adjusting component is connected to the limiting component, and the other end of the adjusting component passes through the adjusting cylinder (42) and extends to the outside of the adjusting cylinder (42).
3. The cat ladder structure for a baking furnace according to claim 2, wherein The limiting assembly includes a movable disc (431) and a limiting block (432); the movable disc (431) is slidably disposed in the movable cylinder (41) and extends into the adjusting cylinder (42); the limiting block (432) is fixedly connected to the movable disc (431) and extends into the movable cylinder (41); the surface of the transverse support rod (1) is provided with a limiting tooth groove (433) that is adapted to the limiting block (432).
4. The cat ladder structure for a baking furnace according to claim 3, wherein The adjustment assembly includes an adjustment rod (441) and a return spring (442); one end of the adjustment rod (441) is fixedly connected to the movable disk (431), and the other end of the adjustment rod (441) passes through the adjustment cylinder (42) and extends to the outside of the adjustment cylinder (42); one end of the return spring (442) is connected to the movable disk (431), and the other end of the return spring (442) is connected to the inner wall of the adjustment cylinder (42).
5. The cat ladder structure for a baking furnace according to claim 1, wherein Both ends of the transverse support rod (1) are provided with mounting holes, and the anti-roll plate (7) is detachably connected to the transverse support rod (1) through the mounting holes.
6. The ladder structure for a roasting furnace according to claim 2, characterized in that, The anti-rotation mechanism includes a first end face toothed ring (21) and a second end face toothed ring (22); the first end face toothed ring (21) is fixedly connected to the mounting sleeve (3), and the second end face toothed ring (22) is fixedly connected to the movable cylinder (41). The first end face toothed ring (21) and the second end face toothed ring (22) are compatible.