High-stability safety engineering ladder

By employing ring-shaped treads and negative pressure adsorption technology on the engineering ladder, the problem of insufficient stability of the engineering ladder has been solved, and the stability and ease of operation have been improved.

CN223767438UActive Publication Date: 2026-01-06EBARA MACHINERY CHINA CO LTD
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Patent Information

Application Number
CN202520155716.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-01-06
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

The existing construction ladders are not stable enough during use. Workers can only move laterally within a small range. Adjusting the construction angle requires repeatedly climbing the ladder, which is cumbersome and poses safety hazards.

Method used

The first and second steps, which adopt a ring structure, are combined with support components and ground gripping components. The negative pressure adsorption technology improves stability and allows workers to easily adjust the angle on the ladder.

Benefits of technology

It improves the overall stability of the engineering ladder, simplifies the adjustment of the construction angle, and enhances the safety and convenience of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a safety engineering ladder with high stability, which relates to the technical field of engineering ladders and comprises a main core rod, a plurality of first foot bars and a plurality of second foot bars are sequentially and uniformly arranged on the main core rod from bottom to top, and the first foot bars and the second foot bars are of annular structures. The plurality of first foot bars and the plurality of second foot bars are fixedly connected to the main core bar through adaptive crosses, the second foot bars are provided with supporting assemblies, and the first foot bar at the bottommost part is provided with a ground gripping assembly. According to the engineering ladder, the anti-inclination effect is achieved on the engineering ladder in an all-around mode, the engineering ladder is helped to be kept in an upright state, the overall stability of the engineering ladder is improved, a worker can directly move along the annular first foot bar and the annular second foot bar so as to adjust the construction angle of the worker, different construction requirements are met, operation is easy and convenient, and safety is high.
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Description

Technical Field

[0001] This utility model relates to the field of engineering ladder technology, and more specifically, to a highly stable and safe engineering ladder. Background Technology

[0002] Construction ladders typically refer to ladders used in construction and engineering projects, primarily to help workers perform tasks at heights.

[0003] For example, an existing patent (publication number: CN222066622U) discloses a portable safety engineering ladder, which relates to the field of safety engineering ladder technology. It includes two fixed ladder mechanisms, one at the front and one at the back. Each of the two fixed ladder mechanisms has a folding ladder mechanism at its bottom. Each of the two fixed ladder mechanisms includes two fixed ladder support side plates. Several stepped grooves are evenly opened on the opposite sides of the two fixed ladder support side plates. Step plates are fixedly installed on the inner walls of the stepped grooves. Limiting ropes are fixedly connected to the opposite faces of the two fixed ladder support side plates. Through the cooperation of the fixed ladder support side plates, folding side plates, rotating shaft, bolts, and positioning plates, the engineering ladder can be directly folded after use. The fixed ladder support side plates and folding side plates are fixed by bolt threads installed in the positioning plate, thereby reducing the storage space of the engineering ladder, making it convenient to carry and improving portability.

[0004] Most existing construction ladders have the above-mentioned A-frame structure. First, workers can only move laterally within a small range on the ladder, which can easily cause instability. Second, if workers want to work from different angles in a more comfortable posture, they need to climb down the ladder, adjust its angle, and then climb back up to work. This is a cumbersome process, and repeated climbing also poses certain dangers. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a highly stable safety engineering ladder to solve the problem that workers can only move laterally within a small range on the engineering ladder, which can easily lead to instability of the engineering ladder. If workers want to carry out construction from different angles in a more comfortable posture, they need to climb down the engineering ladder, adjust the angle of the engineering ladder, and then climb up the engineering ladder to carry out construction. The operation is cumbersome, and repeated climbing of the ladder also poses certain dangers.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a highly stable safety engineering ladder, including a main core, wherein a plurality of first steps and a plurality of second steps are evenly arranged from bottom to top on the main core, both the first steps and the second steps are ring structures, and the plurality of first steps and the plurality of second steps are fixedly connected to the main core by a matching cross, a support component is provided on the second steps, and a ground gripping component is provided on the bottom first step.

[0007] Preferably, the diameters of the plurality of first pedals decrease sequentially from bottom to top, and the diameter of the topmost first pedal is greater than or equal to the diameter of the second pedal.

[0008] Preferably, a friction pad is provided at the bottom of the first pedal, and the friction pad is made of rubber material.

[0009] Preferably, a reinforcing frame is fixedly connected between two adjacent crosses, and the reinforcing frame has an X-shaped structure.

[0010] Preferably, the support component includes two ring rails, which are concentrically arranged on two second foot rods. Each ring rail is slidably connected to a carriage, and the carriage is fixedly connected to a back plate by a crossbar.

[0011] Preferably, the cross-section of the carriage is a T-shaped structure, and the back plate is an arc-shaped structure adapted to the human body.

[0012] Preferably, the gripping assembly includes multiple negative pressure cylinders, which are uniformly fixedly installed on the first foot rod. The top outer side of each negative pressure cylinder is provided with a thread, and a cap is connected to each negative pressure cylinder via the thread. A knob is fixedly installed on the top outer side of the cap, and a negative pressure rod is fixedly connected to the top inner side of the cap. A piston suction cup is fixedly connected to the end of the negative pressure rod away from the cap, and the piston suction cup is interference-fitted with the negative pressure cylinder.

[0013] Preferably, a baffle is fixedly installed on the inner side of the negative pressure cylinder, and the baffle is located above the piston suction cup, which is made of rubber material.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model provides resistance through the bottom ring-shaped first step, which plays an all-round role in preventing the construction ladder from tilting, helping the construction ladder to maintain an upright position and improving the overall stability of the construction ladder. Moreover, workers can move directly along the ring-shaped first and second steps to adjust the working angle to meet different construction needs. It is simple and convenient to operate and has a high degree of safety.

[0016] With this invention, workers can lean against the back panel, freeing their hands. As the worker adjusts their position and angle as needed, their back can move the back panel to adjust its position synchronously, further improving the overall practicality and safety of the engineering ladder.

[0017] This invention allows the piston suction cup to rise by rotating a knob, creating a vacuum between the bottom of the negative pressure cylinder and the ground, thus forming a negative pressure state. This allows the first step to be stably attached to the smooth ground, further improving the stability of the engineering ladder. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the support component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the gripping component structure of this utility model.

[0021] [Figure Labels]

[0022] 1. Main bar; 2. First step bar; 3. Second step bar; 4. Cross; 5. Support assembly; 51. Ring rail; 52. Carriage; 53. Crossbar; 54. Back plate; 6. Grip assembly; 61. Negative pressure cylinder; 62. Thread; 63. Screw cap; 64. Knob; 65. Negative pressure rod; 66. Piston suction cup; 67. Baffle plate; 7. Friction pad; 8. Reinforcing frame. Detailed Implementation

[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0024] As attached Figure 1 To be continued Figure 3 An embodiment of this utility model provides a highly stable safety engineering ladder, including a main rod 1. The main rod 1 is evenly provided with a plurality of first steps 2 and a plurality of second steps 3 from bottom to top. The first steps 2 and the second steps 3 are both ring structures. The plurality of first steps 2 and the plurality of second steps 3 are fixedly connected to the main rod 1 by a matching cross 4. The second steps 3 are provided with a support component 5. The bottom first steps 2 are provided with a ground gripping component 6.

[0025] Specifically, the first step 2 of the bottom ring provides resistance and plays a role in preventing the construction ladder from tilting in all directions, helping the construction ladder to maintain an upright position and improving the overall stability of the construction ladder.

[0026] Preferably, the diameters of the multiple first step rods 2 decrease sequentially from bottom to top, and the diameter of the topmost first step rod 2 is greater than or equal to the diameter of the second step rod 3, resulting in a large bottom support range and further improving the stability of the engineering ladder.

[0027] Preferably, a friction pad 7 is provided at the bottom of the first step 2. The friction pad 7 is made of rubber material to increase the friction between the first step 2 and the bottom surface, thereby improving the anti-slip stability of the engineering ladder.

[0028] Preferably, a reinforcing frame 8 is fixedly connected between two adjacent crosses 4, and the reinforcing frame 8 has an X-shaped structure.

[0029] Preferably, the support component 5 includes two ring rails 51, which are concentrically arranged on two second foot rods 3. Each ring rail 51 is slidably connected to a carriage 52, and the carriage 52 is fixedly connected to a back plate 54 by a crossbar 53.

[0030] Specifically, workers can lean against the back panel 54, freeing their hands and ensuring they remain vertical while working on the ladder. The slide 52 can be adjusted synchronously along the ring rail 51 as the workers adjust their position and angle as needed.

[0031] Preferably, the cross-section of the carriage 52 is a T-shaped structure, and the back plate 54 is an arc-shaped structure adapted to the human body.

[0032] Preferably, the gripping assembly 6 includes a plurality of negative pressure cylinders 61, which are uniformly fixedly installed on the first foot rod 2. The top outer side of the negative pressure cylinder 61 is provided with a thread 62, and the negative pressure cylinder 61 is threadedly connected to a cap 63 through the thread 62. A knob 64 is fixedly installed on the top outer side of the cap 63, and a negative pressure rod 65 is fixedly connected to the top inner side of the cap 63. A piston suction cup 66 is fixedly connected to the end of the negative pressure rod 65 away from the cap 63, and the piston suction cup 66 is interference-fitted with the negative pressure cylinder 61.

[0033] Specifically, by rotating the knob 64, the cap 63 can rise along the negative pressure cylinder 61 through the thread 62, thereby the negative pressure rod 65 pulls the piston suction cup 66 to rise, so that a vacuum is drawn between the bottom of the negative pressure cylinder 61 and the ground, forming a negative pressure state, which allows the first step 2 to be stably attached to the smooth ground, further improving the stability of the engineering ladder.

[0034] Preferably, a baffle 67 is fixedly installed on the inner side of the negative pressure cylinder 61, and the baffle 67 is located above the piston suction cup 66, which is made of rubber material.

[0035] The baffle 67 is used to limit the piston suction cup 66, thereby preventing the cap 63 from falling off the negative pressure cylinder 61.

[0036] The working process of this utility model is as follows:

[0037] When in use, the construction ladder is placed below the required construction location. Workers climb up along the first step 2 and the second step 3, with their backs resting against the inside of the back panel 54. When the angle needs to be adjusted for construction, workers can move in a circle along the first step 2 to adjust the position. At the same time, their backs can move the back panel 54 to adjust the position synchronously.

[0038] When using on smooth surfaces such as marble and glass, first position the piston suction cup 66 at the bottom, then step on the first pedal 2 and turn the knob 64 to lift the piston suction cup 66. This creates a negative pressure inside the negative pressure cylinder 61, causing the first pedal 2 to adhere to the ground through the negative pressure cylinder 61. Conversely, this will release the adhesion.

[0039] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0040] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0041] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 high-stability safety engineering ladder, characterized by, The utility model provides a kind of main heart pole (1), the main heart pole (1) is sequentially and uniformly provided with multiple first tread bar (2) and multiple second tread bar (3) from bottom to top, the first tread bar (2) and second tread bar (3) are annular structure, multiple the first tread bar (2) and multiple the second tread bar (3) are fixedly connected on main heart pole (1) by adapted cross (4), supporting assembly (5) is provided on the second tread bar (3), and the first tread bar (2) on the bottom is provided with ground grabbing assembly (6).

2. The high-stability safety engineering ladder according to claim 1, characterized in that The diameter of multiple the first tread bar (2) decreases from bottom to top, and the diameter of the first tread bar (2) at the top is greater than or equal to the diameter of the second tread bar (3).

3. The high-stability safety engineering ladder according to claim 2, characterized in that The bottom of the first tread bar (2) is provided with a friction pad (7) made of rubber material.

4. The high-stability safety engineering ladder according to any one of claims 1-3, characterized in that, Two adjacent cross (4) are fixedly connected with reinforcing frame (8), and the reinforcing frame (8) is X-shaped structure.

5. The high-stability safety engineering ladder according to claim 1, characterized in that, The supporting assembly (5) includes two ring rails (51), and the two ring rails (51) are concentrically arranged on two second tread bars (3), respectively, and the two ring rails (51) are slidably connected with a sliding frame (52), and the sliding frame (52) is fixedly connected with a back plate (54) by a cross bar (53).

6. The high-stability safety engineering ladder according to claim 5, characterized in that The cross section of the sliding frame (52) is T-shaped structure, and the back plate (54) is arc-shaped structure adapted to human body.

7. The high-stability safety engineering ladder according to claim 1, characterized in that, The ground grabbing assembly (6) includes multiple negative pressure cylinders (61), and the multiple negative pressure cylinders (61) are uniformly fixedly installed on the first tread bar (2), the top outer side of the negative pressure cylinder (61) is provided with a screw thread (62), the negative pressure cylinder (61) is threadedly connected with a screw cap (63) through the screw thread (62), the screw cap (63) is fixedly installed with a knob (64) on the top outer side, the screw cap (63) is fixedly connected with a negative pressure rod (65) on the top inner side, the negative pressure rod (65) is fixedly connected with a piston suction cup (66) at the end away from the screw cap (63), and the piston suction cup (66) is interference fit with the negative pressure cylinder (61).

8. The high-stability safety engineering ladder according to claim 7, characterized in that The inner side of the negative pressure cylinder (61) is fixedly installed with a baffle disc (67), and the baffle disc (67) is above the piston suction cup (66), and the piston suction cup (66) is made of rubber material.

Citation Information

Patent Citations

  • Portable safety engineering ladder

    CN222066622U