Construction engineering construction safety ladder
By designing an adjustable ladder structure and auxiliary rods, the problem of fixed length in existing safety ladders has been solved, achieving flexible use and stable support, and enhancing portability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINMING APARTMENT CONSTR GRP CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-24
AI Technical Summary
Existing construction safety ladders have fixed lengths and structures, cannot be adjusted, have limited functionality, and require supports for stable use.
The first and second ladders are rotated together, and the design of the positioning frame, positioning plate and bolts allows for the fixing and adjustment of the ladder angle. It is also equipped with telescopic auxiliary rods and fluorescent strips to enhance stability and portability.
The safety ladder features flexible adjustment of length and angle, maintains stability without the need for supports, increases storage space, and is easy to carry and use.
Smart Images

Figure CN224550008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety ladder technology, specifically a construction safety ladder for building engineering. Background Technology
[0002] In construction sites, due to project requirements or terrain limitations, it is often necessary to work at heights or cross certain heights. Safety ladders can support construction workers and assist them in their work.
[0003] Application No. 202121515803.2 discloses a safety ladder for construction engineering. Through the cooperation of a groove, a recess, a telescopic rod, a reinforcing rib, a sliding rod, a screw, an anti-slip plate, a fixing groove, a fixing rod, a return spring, and a connecting rod, the ladder can be stably supported when in use, ensuring the stability of the ladder. At the same time, when not in use, the reinforcing rib can be put back into the groove, reducing the size of the ladder and making it convenient to carry and store.
[0004] The ladders in the aforementioned applications have fixed lengths and structures, cannot be adjusted as needed, have limited functionality, and require supports for stable use. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a construction safety ladder for building engineering, which solves the problems mentioned in the background technology.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a construction safety ladder, comprising a first ladder body, a pivot shaft rotatably connected to one end of the first ladder body, a second ladder body fixedly connected to the outer side of the pivot shaft, positioning plates installed on corresponding sides of one end of the second ladder body, the positioning plates having multiple positioning holes inside, positioning frames installed on corresponding sides of one end of the first ladder body, bolts threadedly connected to the inside of the positioning frames, a positioning block fixedly connected to one end of the bolts, and one end of the positioning block inserted into one of the positioning holes, multiple equidistant steps installed on the inner sides of both the first and second ladder bodies, and grooves being formed inside the multiple steps.
[0007] Preferably, a first auxiliary rod is installed on both sides of the end of the first and second ladders away from the pivot, and a second auxiliary rod is internally threaded onto the first auxiliary rod.
[0008] Preferably, handrails are installed on both sides of the first and second ladders respectively.
[0009] Preferably, a fluorescent strip is affixed to the surface of the pedal and to one side of the groove.
[0010] Preferably, the distance between the plurality of positioning holes is the same.
[0011] Preferably, the surface of the positioning disk and one side of the plurality of positioning holes are provided with scale values.
[0012] This utility model provides a construction safety ladder for building engineering, which has the following beneficial effects: 1. The construction safety ladder of this building project is connected by the rotation of the first ladder body and the second ladder body. Under the action of the bolt in the positioning frame and the positioning hole in the positioning plate, it is easy to fix the angle of the first ladder body and the second ladder body, so that it can be unfolded or folded to extend the length of the safety ladder, or to fold it into a triangle. It can maintain support without the need for support. In addition, the pedals are provided with grooves to increase storage space and facilitate the placement of small tools during operation.
[0013] 2. The construction safety ladder in this building project uses a telescopic auxiliary rod installed at one end of the ladder body to facilitate the support of the safety ladder and make it more stable. At the same time, with the threaded connection between the first and second auxiliary rods, it is easy to adjust the overall length of the auxiliary rod according to the angle of the ladder body, so that one end can maintain contact with the ground. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram illustrating the operation of this utility model; Figure 4 This is a partial structural diagram of the present invention.
[0015] In the diagram: 1. First ladder; 2. Rotating shaft; 3. Second ladder; 4. Positioning plate; 5. Positioning hole; 6. Positioning frame; 7. Bolt; 8. Positioning block; 9. Pedal; 10. Groove; 11. First auxiliary rod; 12. Second auxiliary rod; 13. Fluorescent strip; 14. Handrail. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] Please see Figures 1 to 4This utility model provides a technical solution: a construction safety ladder, including a first ladder body 1, a rotating shaft 2 rotatably connected to one end of the first ladder body 1, a second ladder body 3 fixedly connected to the outside of the rotating shaft 2, positioning plates 4 installed on corresponding sides of one end of the second ladder body 3, multiple positioning holes 5 opened inside the positioning plates 4, positioning frames 6 installed on corresponding sides of one end of the first ladder body 1, bolts 7 threadedly connected inside the positioning frames 6, positioning blocks 8 fixedly connected to one end of the bolts 7, one end of the positioning block 8 inserted into one of the positioning holes 5, cooperating with the rotation of the second ladder body 3, so that the positioning block 8 can be inserted into the corresponding positioning hole 5 in the positioning plate 4 as the bolt 7 rotates, limiting the positioning plate 4, fixing the angle between the second ladder body 3 and the first ladder body 1, so that it can be unfolded or folded, facilitating the adjustment of the length and angle of the safety ladder, the distance between the multiple positioning holes 5 is the same, and the surface of the positioning plate 4 and one side of the multiple positioning holes 5 are provided with scale values, which facilitates the determination of the first ladder body 3. The first ladder 1 and the second ladder 3 are angled together. Multiple equidistant pedals 9 are installed on the inner sides of both the first ladder 1 and the second ladder 3. The interior of each pedal 9 has a groove 10 to increase storage space for storing tools used during operation. Fluorescent strips 13 are affixed to the surface of each pedal 9 and to one side of the groove 10. The fluorescent ink on the surface is made of a mixture of phosphorescent powder, fluorescent powder and resin and has a self-illuminating function, which can help to indicate the position of the multiple pedals 9 in low light. First auxiliary rods 11 are installed on both sides of the first ladder 1 and the second ladder 3 away from the pivot 2. The first auxiliary rods 11 are internally threaded with second auxiliary rods 12, which helps to support the first ladder 1 and the second ladder 3. The length of the auxiliary rods can be adjusted by rotating the second auxiliary rods 12 according to the angle of the ladder, so that one end can keep in contact with the ground. Handrails 14 are installed on the corresponding sides of the first ladder 1 and the second ladder 3 to help workers climb.
[0018] In summary, this construction safety ladder is used by rotating the second ladder body 3 via the pivot 2 to align it with the first ladder body 1, extending the ladder's length. Then, rotating the bolts 7 connecting the two internal threads of the positioning brackets 6 at one end of the first ladder body 1 causes the positioning blocks 8 at one end of the bolts 7 to insert into the corresponding positioning holes 5 in the positioning discs 4 on both sides of the second ladder body 3, thus limiting the positioning discs 4 and fixing the second ladder body 3. Tilting the first ladder body 1 and the second ladder body 3 so that one end of the second ladder body 3 fits against a wall or other support allows for climbing. Similarly, rotating the bolts 7 in the opposite direction removes the positioning blocks 8 from the positioning holes 5, releasing the positioning discs 4 and the second ladder body 3 from their positions. After fixing step 3, the second ladder 3 can be rotated to the required angle, so that the first ladder 1 and the second ladder 3 are folded to form a triangle. Then, the bolt 7 can be rotated again to fix the angle of the first ladder 1 and the second ladder 3, so that the first ladder 1 and the second ladder 3 are placed on the ground. At this time, one end of the first ladder 1 and the second ladder 3 are both against the ground. As needed, the first auxiliary rod 11 at one end of the first ladder 1 and the second ladder 3 can be rotated to connect the second auxiliary rod 12 internally, so that one end of the second auxiliary rod 12 is against the ground, which helps to support the first ladder 1 and the second ladder 3. In the dim light, the fluorescent strips 13 on the multiple pedals 9 remind you of the position of the pedals 9.
[0019] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of the shaft-shaped parts are connected by bearings, the connection position of the valve component is provided with anti-leakage rubber strips, the outside of the threaded rod or screw is provided with dust cover, and the equipment can be driven by either built-in battery or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.
Claims
1. A construction safety ladder for building engineering, comprising a first ladder body (1), characterized in that: One end of the first ladder (1) is rotatably connected to a rotating shaft (2), and the outer side of the rotating shaft (2) is fixedly connected to a second ladder (3). Positioning plates (4) are installed on both sides of one end of the second ladder (3). Multiple positioning holes (5) are opened inside the positioning plates (4). Positioning brackets (6) are installed on both sides of one end of the first ladder (1). Bolts (7) are threaded inside the positioning brackets (6). A positioning block (8) is fixedly connected to one end of the bolts (7). One end of the positioning block (8) is inserted into one of the positioning holes (5). Multiple equidistant pedals (9) are installed on the inner sides of the first ladder (1) and the second ladder (3). Grooves (10) are opened inside the multiple pedals (9).
2. The construction safety ladder according to claim 1, characterized in that: The first ladder (1) and the second ladder (3) are each equipped with a first auxiliary rod (11) on both sides of the end away from the pivot (2), and the first auxiliary rod (11) is internally threaded with a second auxiliary rod (12).
3. A construction safety ladder according to claim 1, characterized in that: Handrails (14) are installed on both sides of the first ladder (1) and the second ladder (3).
4. A construction safety ladder according to claim 1, characterized in that: A fluorescent strip (13) is affixed to the surface of the pedal (9) and to one side of the groove (10).
5. A construction safety ladder according to claim 1, characterized in that: The distance between the multiple positioning holes (5) is the same.
6. A construction safety ladder according to claim 1, characterized in that: The surface of the positioning disk (4) and one side of the multiple positioning holes (5) are provided with scale values.