Pre-embedded staircase edge protection device

Abstract

The utility model provides a pre-embedded staircase edge protection device, which belongs to the field of building construction, and comprises a plurality of pre-embedded steel bars, each pre-embedded steel bar is provided with a protection assembly, each protection assembly comprises a pre-embedded sleeve fixedly connected to the corresponding pre-embedded steel bar, the pre-embedded sleeve is in threaded connection with a connecting rod, and the connecting rods are connected with the pre-embedded steel bars. A stand column is installed on the connecting rod, the connecting rod penetrates through the stand column in a sliding mode, two fixing nuts are connected to the connecting rod in a threaded mode, and the stand column is located between the two fixing nuts. The safety of a plurality of construction procedures such as decorative surfaces of construction steps of the staircase, plastering of the side faces of the staircase, water dripping lines at the bottom of the staircase, formal staircase handrail installation and the like can be improved, and meanwhile, compared with the prior art that edge protection is repeatedly disassembled and repeatedly erected, the economical efficiency is also improved; and the device is convenient and fast to mount and dismount, the manufacturing cost is saved, the safety is high, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a pre-embedded stairwell edge protection device. Background Technology

[0002] Currently, in building construction, the edge protection measures for stairwells usually adopt steel pipe fasteners or standard red and white square tube panels. These can meet the edge protection needs of stairwells in the early and middle stages of the project. However, when the project enters the later decoration and renovation stage, multiple construction procedures are required, such as decorating the stair treads, plastering the sides of the stair run, installing drip lines at the bottom of the stair run, and installing the formal stairwell railings and handrails.

[0003] However, most projects require the removal of existing steel pipe fasteners or standard red and white square tubular edge protection railings before the construction of the stair treads. Moreover, due to the requirements of construction technology and procedures, the removal often involves the complete removal of all existing edge protection measures for the entire staircase. This leaves the stairwell without any reliable edge protection measures during subsequent construction processes, creating significant safety hazards. In addition, some projects, considering that this section of construction involves many procedures and lasts a long time, would be too dangerous without edge protection, so they adopt simple protective measures such as wooden blocks and warning lines. These measures are completely ineffective in providing reliable edge protection, and they also need to be removed again before the installation of the formal stair railings and handrails, which is time-consuming and laborious, returning the construction to a state without edge protection. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a pre-embedded stairwell edge protection device.

[0005] An embodiment of this utility model provides a pre-embedded stairwell edge protection device, comprising:

[0006] Multiple pre-embedded reinforcing bars are provided, each equipped with a protective component. Each protective component includes a pre-embedded sleeve fixedly connected to the pre-embedded reinforcing bar, a connecting rod threadedly connected to the pre-embedded sleeve, a column mounted on the connecting rod, the connecting rod slidingly penetrating the column, two fixing nuts threadedly connected to the connecting rod, the column located between the two fixing nuts, multiple fixing blocks mounted on the column, each fixing block having a slot, each slot containing a first locking block, a first protective railing rotatably connected to the first locking block, a first threaded rod fixedly connected to the end of the first protective railing away from the first locking block, a second protective pull rod threadedly connected to the first threaded rod, a second locking block fixedly connected to the second protective railing, and a fixing component mounted on the column.

[0007] Furthermore, the fixing assembly includes multiple sliding cavities, with each of the fixing blocks corresponding to one another. Limiting components are installed within each of the multiple sliding cavities, and each pair of fixing blocks corresponds to one of the multiple limiting components. Each limiting component includes two sets of springs fixedly connected to the inner wall of the sliding cavity. Two sliding plates are slidably connected within the sliding cavity, with limiting blocks fixedly connected to each of the two sliding plates. The two sliding plates are respectively fixedly connected to the two sets of springs. The two limiting blocks slide through the column, and each of the two sliding plates has a movable block fixedly connected to it. The end of the movable block away from the limiting block is arc-shaped. Limiting grooves are formed on both the first and second locking blocks, and the shapes of the limiting blocks and limiting grooves match. A sliding rod slides through the column, and multiple lifting blocks are fixedly connected to the side wall of the sliding rod. The multiple lifting blocks are slidably connected within the multiple sliding cavities. A second threaded rod is rotatably connected to the sliding rod, and the second threaded rod is threadedly connected to the column.

[0008] Furthermore, a tapered nut is threaded onto the end of the connecting rod furthest from the column, and the tapered nut is mounted on the pre-embedded sleeve.

[0009] Furthermore, the column has a fixing hole, and a through wire is slidably connected inside the fixing hole. Both ends of the through wire are fixedly connected to fixing rings, and expansion bolts are installed inside the two fixing rings.

[0010] Furthermore, the sidewall of the pre-embedded steel bar is fixedly connected with a reinforcing anchor steel plate.

[0011] Furthermore, a knob is fixedly connected to the second threaded rod, and the knob is provided with an anti-slip pad layer.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. First, pre-embed the pre-embedded sleeve components, install the connecting rod, and then fix the column with the fixing nut. Next, adjust the length between the first and second guardrails. Then, insert the first and second clips into their matching slots to complete the installation of the device. This can improve the safety of the stairwell during multiple construction processes, such as the decorative surface of the construction steps, the plastering of the sides of the stair run, the drip line at the bottom of the stair run, and the installation of the formal stairwell railings and handrails. At the same time, it is more economical than the previous repeated disassembly and reassembly of edge protection. Furthermore, the device is easy and quick to install and disassemble, saves costs, has high safety, and is highly practical.

[0014] 2. After the user has installed the first and second guardrails, the user can turn the knob to lower the sliding bar, causing the lifting block to descend. The lifting block contacts the moving block, which in turn receives a pushing force, causing the limiting block to move into the limiting groove. This improves the stability of the first and second locking blocks, thereby improving the stability of the first and second guardrails and further enhancing the safety of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a pre-embedded stairwell edge protection device described in an embodiment of this utility model.

[0016] Figure 2 This is an exploded view of the protective component structure of a pre-embedded stairwell edge protection device described in this utility model embodiment.

[0017] Figure 3 This is a three-dimensional sectional view of the sliding cavity structure of a pre-embedded stairwell edge protection device described in this utility model embodiment.

[0018] Figure 4 This is a three-dimensional schematic diagram of the first protective railing structure of a pre-embedded stairwell edge protection device described in this utility model embodiment.

[0019] In the above attached figures: 1. Embedded steel bar, 2. Embedded sleeve, 3. Connecting rod, 4. Column, 5. Fixing nut, 6. Fixing block, 7. First locking block, 8. First guardrail, 9. First threaded rod, 10. Sliding cavity, 11. Spring, 12. Limiting block, 13. Limiting groove, 14. Sliding rod, 15. Lifting block, 16. Moving block, 17. Conical nut, 18. Through thread. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-4 As shown in the figure, this utility model embodiment proposes a pre-embedded stairwell edge protection device, including:

[0022] Multiple pre-embedded steel bars 1 are fixedly connected to the side walls of the pre-embedded steel bars 1 with reinforcing anchor steel plates, which increases the foundation area of ​​the pre-embedded steel bars 1 and the concrete, thereby improving the stability of the device. Each pre-embedded steel bar 1 is equipped with a protective component, which includes a pre-embedded sleeve 2 fixedly connected to the pre-embedded steel bar 1. A connecting rod 3 is threadedly connected to the pre-embedded sleeve 2. A conical nut 17 is threadedly connected to the end of the connecting rod 3 away from the column 4. The conical nut 17 is set on the pre-embedded sleeve 2. The conical nut 17 can reinforce the connection between the connecting rod 3 and the pre-embedded sleeve 2, thereby improving the stability of the device. A column 4 is installed on the connecting rod 3. The connecting rod 3 slides through the column 4. Two fixing nuts 5 are threadedly connected to the connecting rod 3. The column 4 is located between the two fixing nuts 5.

[0023] The column 4 has a fixing hole, and a through thread 18 is slidably connected inside the fixing hole. Both ends of the through thread 18 are fixedly connected to fixing rings. Expansion bolts are installed in the two fixing rings to fix the column 4 and improve the stability of the column 4. Multiple fixing blocks 6 are installed on the column 4. Each fixing block 6 has a slot. Each slot is provided with a first locking block 7. A first guardrail 8 is rotatably connected to the first locking block 7. A first threaded rod 9 is fixedly connected to the end of the first guardrail 8 away from the first locking block 7. A second protective pull rod is threadedly connected to the first threaded rod 9. A second locking block is fixedly connected to the second guardrail. The column 4 is equipped with fixing components.

[0024] The fixing assembly includes multiple sliding cavities 10, with multiple fixing blocks 6 corresponding one-to-one. Limiting components are installed within each sliding cavity 10. Each pair of fixing blocks 6 corresponds one-to-one with multiple limiting components. Each limiting component includes two sets of springs 11 fixedly connected to the inner wall of the sliding cavity 10. Two sliding plates are slidably connected within the sliding cavity 10, with limiting blocks 12 fixedly connected to each of the two sliding plates. The two sliding plates are respectively fixedly connected to the two sets of springs 11. The two limiting blocks 12 slide through the column 4. Moving blocks 16 are fixedly connected to each of the two sliding plates, moving away from the limiting blocks. One end of block 12 is arc-shaped. Both the first and second locking blocks have limit grooves 13. The shapes of the limit blocks 12 and the limit grooves 13 match. A sliding rod 14 slides through the column 4. Multiple lifting blocks 15 are fixedly connected to the side wall of the sliding rod 14. The multiple lifting blocks 15 are slidably connected in multiple sliding cavities 10. A second threaded rod is rotatably connected to the sliding rod 14. The second threaded rod is threadedly connected to the column 4. A knob is fixedly connected to the second threaded rod. The knob is provided with an anti-slip pad to facilitate the user to rotate the second threaded rod, thus improving the portability of the device.

[0025] The detailed working process of this utility model is as follows:

[0026] First, before the concrete construction of the stair section, the pre-embedded sleeve 2 of the device is embedded. When the concrete strength of the stair section reaches 75% or more, the connecting rod 3 can be connected to the pre-embedded sleeve 2. Then, the end is reinforced with a tapered nut 17. After that, the fixing nut 5 fixes the column 4 to the connecting rod 3. Then, a through thread 18 is inserted into the fixing hole at the bottom of the column 4 for reinforcement and fixing with expansion bolts. After that, the user can rotate the second guardrail to adjust the distance between the first guardrail 8 and the second guardrail. After adjusting to the appropriate position, the user inserts the first clip 7 into the slot on the fixing block 6. Then, the device is assembled in sequence to complete the installation of the device, which can improve the decoration of the stair treads during construction. This device improves safety during multiple construction processes, including plastering the sides of the stair run, installing drip lines at the bottom of the stair run, and installing handrails in the stairwell. It also improves economic efficiency compared to the previous method of repeatedly dismantling and re-erecting edge protection. Furthermore, the device is easy and quick to install and dismantle, saves costs, offers high safety, and is highly practical. After placement, the user rotates the knob, causing the second threaded rod to rotate and the sliding rod 14 to slide, allowing the lifting block 15 to descend and contact the moving block 16. The moving block 16 receives a pushing force, causing the spring 11 to extend, and the limiting block 12 to move into the limiting groove 13. This improves the stability of the first locking block 7 and the second locking block, thereby improving the stability of the first and second protective railings 8 and further enhancing the safety of the device.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pre-embedded stairwell edge protection device, characterized in that, include: Multiple embedded steel bars (1) are provided with protective components. Each of the embedded steel bars (1) is equipped with a protective component. The protective component includes an embedded sleeve (2) fixedly connected to the embedded steel bar (1). A connecting rod (3) is threadedly connected to the embedded sleeve (2). A column (4) is installed on the connecting rod (3). The connecting rod (3) slides through the column (4). Two fixing nuts (5) are threadedly connected to the connecting rod (3). The column (4) is located between the two fixing nuts (5). Multiple fixing blocks (6) are installed on the column (4). Each of the multiple fixing blocks (6) has a slot. Each of the multiple slots has a first locking block (7). A first protective railing (8) is rotatably connected to the first locking block (7). A first threaded rod (9) is fixedly connected to the end of the first protective railing (8) away from the first locking block (7). A second protective pull rod is threadedly connected to the first threaded rod (9). A second locking block is fixedly connected to the second protective pull rod. A fixing component is installed on the column (4).

2. The embedded stairwell edge protection device according to claim 1, characterized in that: The fixing assembly includes multiple sliding cavities (10), with multiple fixing blocks (6) corresponding one-to-one. Each sliding cavity (10) is equipped with a limiting assembly. Each pair of fixing blocks (6) corresponds one-to-one with multiple limiting assemblies. The limiting assembly includes two sets of springs (11) fixedly connected to the inner wall of the sliding cavity (10). Two sliding plates are slidably connected inside the sliding cavity (10). Each of the two sliding plates is fixedly connected to a limiting block (12). The two sliding plates are respectively fixedly connected to the two sets of springs (11). The two limiting blocks (12) slide through the column (4). Each is fixedly connected with a movable block (16). The end of the movable block (16) away from the limiting block (12) is arc-shaped. The first card block (7) and the second card block are both opened with limiting grooves (13). The limiting block (12) and the limiting groove (13) are matched in shape. A sliding rod (14) slides through the column (4). Multiple lifting blocks (15) are fixedly connected to the side wall of the sliding rod (14). The multiple lifting blocks (15) are slidably connected in multiple sliding cavities (10). A second threaded rod is rotatably connected to the sliding rod (14). The second threaded rod is threadedly connected to the column (4).

3. The embedded stairwell edge protection device according to claim 1, characterized in that: The end of the connecting rod (3) away from the column (4) is threaded with a tapered nut (17), which is set on the pre-embedded sleeve (2).

4. The embedded stairwell edge protection device according to claim 1, characterized in that: The column (4) has a fixing hole, and a through wire (18) is slidably connected in the fixing hole. Both ends of the through wire (18) are fixedly connected to fixing rings, and expansion bolts are installed in the two fixing rings.

5. The embedded stairwell edge protection device according to claim 1, characterized in that: The pre-embedded steel bar (1) is fixedly connected to the side wall with a reinforcing anchor steel plate.

6. The embedded stairwell edge protection device according to claim 2, characterized in that: A knob is fixedly connected to the second threaded rod, and the knob is provided with an anti-slip pad layer.

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