Safety ladder for foundation pit operations

Abstract

This utility model belongs to the field of construction tools and provides a safety ladder for foundation pit operations. It includes a ladder body, a toolbox for storing tools at the top of the ladder body, sleeves on both sides of the ladder body, and adjustment components on both sides of the toolbox that cooperate with the sleeves to adjust its position. Each adjustment component includes a connecting rod located on the side of the toolbox closest to the sleeve, a movable plate slidably mounted on the connecting rod, and a bottom end of the movable plate penetrating into the interior of the sleeve and having an insert block. Through the cooperation of the adjustment components and sleeves, this utility model allows workers to flexibly adjust the height of the toolbox according to their standing height on the ladder, reducing the need for workers to extend their bodies or bend over when retrieving tools, avoiding frequent hand removal from protection, reducing the risk of falls due to loss of balance, and greatly improving worker safety during operations.

Description

Technical Field

[0001] This utility model belongs to the field of construction tools, specifically a safety ladder for foundation pit operations. Background Technology

[0002] In foundation pit construction, it is often necessary to carry out high-altitude operations within the pit (such as foundation pit sidewall support construction, embedded part installation, and pit wall defect repair). Safety ladders are crucial facilities for construction workers to reach high-altitude work positions within the foundation pit and provide temporary standing and operational support during operations. They are fundamental tools that ensure personnel can reach the work site and maintain stable operation.

[0003] However, existing safety ladders for excavation work have some shortcomings in actual use: when workers use safety ladders to perform such high-altitude operations, the narrow operating space at height makes it difficult to store and retrieve tools. The traditional method is to put the tools into a tool bag, which requires repeated searching during operation. This not only reduces construction efficiency, but also greatly increases the safety risks of falls due to frequent removal of hands from protection and frequent changes in body posture, making it difficult to meet the actual needs of high-altitude excavation work.

[0004] To address these issues, those skilled in the art have proposed safety ladders for foundation pit operations. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a safety ladder for foundation pit operations.

[0006] A safety ladder for foundation pit operations includes a ladder body, a toolbox for placing tools is provided on the upper part of the ladder body, sleeves are provided on both the left and right sides of the ladder body, and adjustment components that cooperate with the sleeves to adjust the toolbox's position are provided on both the left and right sides of the toolbox.

[0007] The adjustment assembly includes a connecting rod disposed on the side of the toolbox near the sleeve, a movable plate slidably disposed on the connecting rod, the sliding section between the connecting rod and the movable plate being a rectangular section, the bottom end of the movable plate penetrating into the interior of the sleeve and having an insert block disposed thereon, and a spring sleeved on the outer side of the connecting rod, the two ends of the spring being connected to the toolbox and the movable plate respectively.

[0008] Preferably, the sleeve has multiple equally spaced insertion ports on the side away from the ladder, and the insertion block is inserted into the corresponding insertion port on the side away from the moving plate.

[0009] Preferably, the upper part of the movable plate is provided with a connecting plate, and the two connecting plates are provided with a notch on the side that is close to each other.

[0010] Preferably, the upper part of the sleeve is provided with an L-shaped limiting block, and a fastening bolt is inserted through the outer vertical section of the limiting block, one end of the fastening bolt being threadedly connected to the outer side of the sleeve.

[0011] Preferably, the toolbox has a rotatable lid on its upper part, and the toolbox has a T-shaped partition inside, which divides the interior of the toolbox into multiple storage areas.

[0012] Preferably, the front and rear sides of the movable plate are respectively fitted to the front and rear inner walls of the sleeve.

[0013] Preferably, the lower end of the movable plate away from the insert block has two symmetrically distributed mounting grooves, and ball bearings are rolled in the mounting grooves.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By adjusting the components and sleeves, this utility model allows workers to flexibly adjust the height of the toolbox according to their standing height on the ladder. This reduces the need for workers to stretch or bend over when retrieving tools, avoids frequent hand removal from the protective cover, and reduces the risk of falls due to loss of balance, thus greatly improving the safety of workers during operation.

[0016] 2. This utility model, through the cooperation of the limiting block and the bolt, allows the limiting block to be removed by unscrewing the fastening bolt after the foundation pit operation is completed. Then, the moving plate can be moved out of the sleeve, realizing the separation of the toolbox from the ladder body. This facilitates the individual maintenance, replacement or storage of the toolbox, and meets the needs of flexible equipment management in foundation pit operations. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present invention;

[0018] Figure 2 This is a structural diagram showing the connection between the sleeve and the toolbox in this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of the structure of part A in the middle;

[0020] Figure 4 This is a structural diagram of the toolbox lid when it is opened in this utility model;

[0021] Figure 5 This is a cross-sectional view of the connection structure between the movable plate and the sleeve in this utility model.

[0022] In the picture:

[0023] 1. Ladder; 2. Toolbox; 21. Box lid; 22. Partition; 3. Sleeve; 31. Socket; 4. Adjustment assembly; 41. Connecting rod; 42. Moving plate; 43. Insert block; 44. Spring; 45. Connecting plate; 5. Limiting block; 6. Fastening bolt; 7. Ball bearing. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] As attached Figure 1 To be continued Figure 5 As shown:

[0026] This utility model provides a safety ladder for foundation pit operations, including a ladder body 1, a toolbox 2 for placing tools is provided on the upper part of the ladder body 1, sleeves 3 are provided on both the left and right sides of the ladder body 1, and adjustment components 4 that cooperate with the sleeves 3 to adjust their usage positions are provided on both the left and right sides of the toolbox 2.

[0027] refer to Figure 4 The toolbox 2 has a lid 21 that rotates on the upper part, and a T-shaped partition 22 inside the toolbox 2, which divides the interior of the toolbox 2 into multiple storage areas.

[0028] When using ladder 1 for high-altitude operations in the foundation pit, workers can climb to the designated work position in the foundation pit by relying on ladder 1. During the operation, the toolbox 2 can be flexibly adjusted in height according to the adaptation of the adjustment component 4 and the sleeve 3, so that the height of the tool can be taken out is suitable for the worker's standing posture, reducing the risk of falling due to searching and taking out tools when working at height, making it more convenient to take out tools and safer to operate.

[0029] refer to Figure 2 and Figure 3 The adjusting component 4 includes a connecting rod 41 disposed on the side of the toolbox 2 near the sleeve 3. A movable plate 42 is slidably disposed on the connecting rod 41. The sliding section between the connecting rod 41 and the movable plate 42 is a rectangular section. The bottom end of the movable plate 42 penetrates into the interior of the sleeve 3 and is provided with an insert block 43. A spring 44 is sleeved on the outside of the connecting rod 41. The two ends of the spring 44 are respectively connected to the toolbox 2 and the movable plate 42.

[0030] refer to Figure 2 The sleeve 3 has multiple equally spaced insertion ports 31 on the side away from the ladder 1, and the insertion block 43 is inserted into the corresponding insertion port 31 on the side away from the moving plate 42.

[0031] refer to Figure 2 A connecting plate 45 is provided on the upper part of the movable plate 42, and a notch is provided on the side of the two connecting plates 45 that are close to each other.

[0032] When the height of the toolbox 2 needs to be adjusted, the worker pulls the two connecting plates 45 closer together. The movement of the connecting plates 45 causes the moving plate 42 to move on the connecting rod 41. The movement of the moving plate 42 compresses the spring 44 and causes the insert block 43 to move out of the socket 31. At this time, the limitation on the moving plate 42 is removed. Then, the worker can pull the moving plate 42 upward according to the height of his / her standing on the ladder 1 to move the toolbox 2 upward. After the toolbox 2 is adjusted to the target height, the connecting plates 45 are released. At this time, the elastic force of the spring 44 can push the moving plate 42 to reset, so that the insert block 43 is re-inserted into the socket 31 of the corresponding height of the sleeve 3, thereby completing the adjustment of the height of the toolbox 2, making it more convenient for the worker to take out the tools in the toolbox 2.

[0033] refer to Figure 1 and Figure 3 The upper part of the sleeve 3 is provided with an L-shaped limiting block 5, and a fastening bolt 6 is inserted through the outer vertical section of the limiting block 5. One end of the fastening bolt 6 is threadedly connected to the outer side of the sleeve 3.

[0034] The limiting block 5 prevents the moving plate 42 from moving excessively upwards and detaching from the sleeve 3 when the toolbox 2 is pulled upwards. After the operation is completed, the worker can unscrew the fastening bolt 6 on the limiting block 5 to remove the limiting block 5 from the sleeve 3, thereby removing the moving plate 42 from the sleeve 3. This makes it easier to remove the toolbox 2 from the ladder 1, facilitating the later individual maintenance, replacement, or storage of the toolbox 2, which better meets the needs of flexible equipment management in foundation pit operations.

[0035] refer to Figure 3 and Figure 5 The front and rear sides of the movable plate 42 are respectively attached to the front and rear inner walls of the sleeve 3.

[0036] refer to Figure 5 Two symmetrically distributed mounting slots are provided on the lower end of the side of the movable plate 42 away from the insert block 43, and ball bearings 7 are rolled in the mounting slots.

[0037] By having the front and rear sides of the movable plate 42 fit against the front and rear inner walls of the sleeve 3 respectively, the movable plate 42 can avoid swaying or shifting back and forth during the lifting and lowering of the sleeve 3, ensuring that the toolbox 2 always moves smoothly in the vertical direction during adjustment. When the movable plate 42 is pulled to move the insert 43 out of the insertion port 31, the ball bearing 7 on the movable plate 42 contacts the inner wall of the sleeve 3. Then, when the movable plate 42 is pulled upward, the sliding friction between the movable plate 42 and the sleeve 3 is converted into rolling friction, which greatly reduces the moving resistance and further improves the convenience of adjustment.

[0038] Working principle: When using ladder 1 for high-altitude operations within the foundation pit, workers can climb to the designated high-altitude work position within the pit using ladder 1. Then, the worker pulls the two connecting plates 45 closer together. The movement of connecting plates 45 causes the moving plate 42 to slide along the connecting rod 41 and compress the spring 44. Simultaneously, the insert block 43 moves out of its corresponding slot 31, releasing the restriction on the moving plate 42. The worker can then pull the moving plate 42 according to their standing height, moving the toolbox 2 upwards. Once the toolbox 2 reaches the target height, the connecting plates 45 are released, and the elasticity of the spring 44... Forcefully moving the movable plate 42 resets the toolbox 2, allowing the insert block 43 to re-insert into the corresponding height slot 31 of the sleeve 3, thus adjusting the height of the toolbox 2. This makes it easier for workers to access the tools in the toolbox 2, reducing the risk of falls caused by searching for or retrieving tools during work at heights and greatly improving operational safety. At the same time, by tightening the fastening bolt 6, the limiting block 5 can be easily removed from the sleeve 3, making it easy to disassemble the toolbox 2 from the ladder 1. This facilitates the later individual maintenance, replacement, or storage of the toolbox 2, better meeting the needs of flexible equipment management in foundation pit operations.

[0039] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A safety ladder for use in a foundation pit operation, characterized by, Includes a ladder (1), the upper part of which is provided with a toolbox (2) for placing tools, and sleeves (3) are provided on both the left and right sides of the ladder (1). Adjustment components (4) that cooperate with the sleeves (3) to adjust their usage positions are provided on both the left and right sides of the toolbox (2). The adjustment assembly (4) includes a connecting rod (41) disposed on the side of the toolbox (2) near the sleeve (3). A movable plate (42) is slidably disposed on the connecting rod (41). The sliding section between the connecting rod (41) and the movable plate (42) is a rectangular section. The bottom end of the movable plate (42) penetrates into the interior of the sleeve (3) and is provided with an insert (43). A spring (44) is sleeved on the outside of the connecting rod (41). The two ends of the spring (44) are respectively connected to the toolbox (2) and the movable plate (42).

2. The safety ladder for excavation work according to claim 1, wherein: The sleeve (3) has multiple equally spaced insertion ports (31) on the side away from the ladder (1), and the insertion block (43) is inserted into the corresponding insertion port (31) on the side away from the moving plate (42).

3. The safety ladder for excavation work according to claim 1, wherein: The upper part of the movable plate (42) is provided with a connecting plate (45), and the two connecting plates (45) are provided with a notch on the side that is close to each other.

4. The safety ladder for excavation work according to claim 1, wherein: The upper part of the sleeve (3) is provided with an L-shaped limiting block (5), and a fastening bolt (6) is inserted through the outer vertical section of the limiting block (5). One end of the fastening bolt (6) is threadedly connected to the outer side of the sleeve (3).

5. The safety ladder for excavation work according to claim 1, wherein: The toolbox (2) is rotatably equipped with a lid (21) on its upper part. The toolbox (2) is equipped with a T-shaped partition (22) inside, which divides the interior of the toolbox (2) into multiple storage areas.

6. The safety ladder for excavation work as claimed in claim 1, wherein: The front and rear sides of the movable plate (42) are respectively attached to the front and rear inner walls of the sleeve (3).

7. The safety ladder for excavation work as claimed in claim 1, wherein: The movable plate (42) has two symmetrically distributed mounting grooves on the lower end of the side away from the insert block (43), and ball bearings (7) are rolled in the mounting grooves.

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