Temporary protection mechanism for prefabricated stairs

Abstract

The utility model relates to a prefabricated stair temporary protection mechanism, which belongs to the technical field of prefabricated stair protection and comprises a prefabricated stair body, a protection mechanism arranged on the prefabricated stair body and a protection component arranged on the prefabricated stair body. The protection mechanism comprises two supporting plates slidably connected with the prefabricated stair body, supporting columns fixedly connected to the two supporting plates, two connecting bases fixedly connected to the two supporting columns, and sleeves hinged to the interiors of the two connecting bases on the right side. According to the prefabricated stair temporary protection mechanism, by arranging the protection mechanism, the protection device has the limiting and fixing functions, the protection device is fixed to the prefabricated stair body in a limiting mode, and therefore the protection device can be conveniently and rapidly mounted and dismounted, the working efficiency during mounting and dismounting of the protection device is improved, and meanwhile the universality of the protection device is improved; the protection device is suitable for prefabricated stair bodies of different sizes, and the practicability of the protection device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precast stair protection, in particular to a temporary protection mechanism for precast stairs. Background Technique

[0002] Precast stairs are one of the commonly used components in prefabricated buildings. The precast components of precast stairs are mainly precast concrete treads, platform boards and supporting structures. The main supporting methods of stairs are divided into three types: wall bearing type, cantilever tread type and beam bearing type. They have the advantages of high efficiency, fast construction speed and high quality controllability.

[0003] For example, patent CN219952503U discloses a precast stair protection device that is easy to separate. Through the cooperation between the precast stair main body, fixed protection rods, movable protection rods and positioning components, and by using the positioning components, the connection of the fixed protection rods and movable protection rods to the columns is realized, effectively solving the problem that the components of the protection components cannot be disassembled in the above-mentioned disclosed technical content. By changing the connection method between the fixed protection rods and movable protection rods and simultaneously retracting the movable protection rods into the fixed protection rods, the columns, fixed protection rods and movable protection rods can be separated, reducing the occupied area of the columns, fixed protection rods and movable protection rods, thus facilitating the staff to carry and transport the columns, fixed protection rods and movable protection rods. However, when installing this protection device, multiple holes need to be opened on the precast stairs, resulting in inconvenience in installing the protection device, increasing the installation difficulty and reducing the versatility of the protection device. Therefore, a temporary protection mechanism for precast stairs is proposed to solve the above-mentioned problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a temporary protection mechanism for precast stairs, which has the advantages of convenient installation, etc., and solves the problems that when installing this protection device, multiple holes need to be opened on the precast stairs, resulting in inconvenience in installing the protection device and reducing the versatility of the protection device.

[0005] To achieve the above object, the utility model provides the following technical solution: A temporary protection mechanism for precast stairs, comprising a precast stair main body, a protection mechanism arranged on the precast stair main body, and a protection component arranged on the precast stair main body;

[0006] By adopting the above technical solution, compared with the traditional cast-in-place stairs, the precast stair main body has high installation efficiency and fast construction speed, and can maximize the flexible assembly characteristics. The precast stair main body can quickly form a passage for people to go up and down, that is, it saves the temporary passage and is convenient for construction workers to work up and down.

[0007] The protection mechanism includes two support plates slidably connected to the precast staircase body, support columns fixedly connected to the two support plates, two connecting seats fixedly connected to the two support columns, sleeves hinged inside the two connecting seats on the right side, and connecting rods slidably connected inside the two sleeves and hinged inside the two connecting seats on the left side;

[0008] By adopting the above technical solution, the support plates, support columns, connecting seats, sleeves and connecting rods are installed on the left and right sides of the precast staircase body, so as to facilitate the protection of both sides of the precast staircase body, facilitate the construction personnel to work up and down, ensure the safety of the construction personnel's lives, and improve the safety of the precast staircase body.

[0009] A box body fixedly connected to the support plate, a threaded rod rotatably connected inside the box body, a movable rod threadedly connected to the outside of the threaded rod, a limiting plate fixedly connected to the movable rod, an anti-slip pad fixedly connected to the limiting plate, and two support components arranged inside the box body.

[0010] By adopting the above technical solution, the protection device is limited and fixed on the precast staircase body, so as to facilitate the quick installation and disassembly of the protection device, improve the work efficiency during its installation and disassembly, and at the same time improve the versatility of the protection device, which is applicable to precast staircase bodies of different sizes and can maximize the flexible assembly characteristics.

[0011] Furthermore, the support component includes a support block fixedly connected to the movable rod, a support groove opened on the inner wall of the box body, a support rod fixedly connected inside the support groove, and a support spring sleeved on the outside of the support rod and fixedly connected to one side of the support block.

[0012] By adopting the above technical solution, the support block squeezes the support spring on the outside of the support rod, and the support spring contracts, so as to limit and support the limiting plate, further increasing the stability when the limiting plate is limited and fixed.

[0013] Furthermore, the protection component includes a protection plate placed on the precast staircase body and a positioning plate slidably connected inside the protection plate.

[0014] By adopting the above technical solution, the protection plate is laid on the surface of the precast staircase body to achieve the effect of protecting the precast staircase body, avoiding damage to the surface of the precast staircase body, increasing the service life of the precast staircase body, and multiple protection plates are fixed by sequentially plugging the heads and tails, which is convenient for installation and disassembly, and thus convenient for recycling, as well as convenient for handling and storage.

[0015] Furthermore, the support plate is U-shaped.

[0016] By adopting the above technical solution, it is convenient to insert the support plate on the precast staircase body.

[0017] Furthermore, the outer side of the support block is slidably connected to the inside of the support groove.

[0018] By adopting the above technical solution, the movable rod is limited and supported, increasing its stability during movement.

[0019] Furthermore, a sliding through-hole is provided inside the support block, and the outer side of the support rod is slidably connected to the inside of the sliding through-hole.

[0020] By adopting the above technical solution, the support block squeezes the support spring on the outer side of the support rod, ensuring the stability of the support block during movement on the outer side of the support rod.

[0021] Furthermore, the protection plate is L-shaped, and anti-slip stripes are provided on the protection plate.

[0022] By adopting the above technical solution, by setting the anti-slip stripes, it is convenient to walk on the protection plate, avoiding slipping, further ensuring the safety of construction workers and improving the safety of the precast staircase body.

[0023] Furthermore, a positioning groove is provided on the protection plate, and the size of the positioning plate is adapted to the size of the positioning groove.

[0024] By adopting the above technical solution, it is convenient for the positioning plate to be inserted into the positioning groove provided on another protection plate, thus facilitating the splicing of the two protection plates. At the same time, the overall weight of the protection plate is relatively large, and it is not easy to move and fall even when encountering a large external force, increasing the stability after the protection plates are spliced.

[0025] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0026] 1. For this precast staircase temporary protection mechanism, by setting the protection mechanism, the protection device is provided with the function of limiting and fixing, achieving the purpose of limiting and fixing the protection device on the precast staircase body, thereby facilitating the rapid installation and disassembly of the protection device, improving the work efficiency during its installation and disassembly, and at the same time improving the versatility of the protection device, being applicable to precast staircase bodies of different sizes, facilitating the use of users, and increasing the practicality of the protection device.

[0027] 2. For this precast staircase temporary protection mechanism, by setting the protection components, the precast staircase is provided with the function of protection, achieving the effect of protecting the precast staircase body, thereby facilitating the fixing of multiple protection plates by sequentially inserting the heads and tails of each other, being convenient for installation and disassembly, and further facilitating recycling, as well as being convenient for handling and storage, facilitating the use of users, and improving the practicality of the protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1Schematic diagram of the structure of the present utility model;

[0029] Figure 2 The present utility model Figure 1 Enlarged schematic diagram of the structure at position A in the present utility model;

[0030] Figure 3 Schematic diagram of the structure of the protection component of the present utility model.

[0031] In the figure: 1, precast staircase body; 2, support plate; 3, support column; 4, connecting seat; 5, sleeve; 6, connecting rod; 7, box body; 8, threaded rod; 9, movable rod; 10, limiting plate; 11, anti-slip pad; 12, support block; 13, support groove; 14, support rod; 15, support spring; 16, protection plate; 17, positioning plate. Specific implementation mode

[0032] Please refer to Figures 1-3 , a temporary protection mechanism for a precast staircase in this embodiment, includes a precast staircase body 1, a protection mechanism arranged on the precast staircase body 1, and a protection component arranged on the precast staircase body 1.

[0033] It should be noted that compared with traditional staircases, the precast staircase body 1 enables workers not to need to set up a complex framework when building staircases, nor to consider whether the weather is suitable, and there is no need to spend a lot of time mixing and pouring concrete. Moreover, the hollow feature of the precast staircase body 1 also makes it lighter. Combining these factors, the installation of the precast staircase body 1 is much faster than that of traditional staircases. The quality of the precast staircase body 1 after forming is greatly improved compared with the quality and appearance of cast-in-place staircases. The precast staircase body 1 is different from the chipped corners of traditional cast-in-place staircases, and also omits the secondary plastering link, saving one process and cost compared with the plastering amount.

[0034] Please refer to Figures 1-3 , in this embodiment, the protection mechanism includes two support plates 2 that are slidably connected to the precast staircase body 1, a support column 3 fixedly connected to the two support plates 2, two connecting seats 4 fixedly connected to the two support columns 3, a sleeve 5 hinged inside the two right connecting seats 4, and a connecting rod 6 slidably connected inside the two sleeves 5 and hinged inside the two left connecting seats 4. The support plate 2 is U-shaped.

[0035] It should be noted that the support plates 2, support columns 3, connecting seats 4, sleeves 5, and connecting rods 6 are installed on the left and right sides of the precast staircase body 1, so as to facilitate the protection of both sides of the precast staircase body 1, facilitate the up and down operation of construction workers, ensure the safety of construction workers, and improve the safety of the precast staircase body 1.

[0036] Please refer to Figures 1-3, in this embodiment, a box body 7 fixedly connected to the support plate 2, a threaded rod 8 rotatably connected inside the box body 7, a movable rod 9 threadedly connected to the outside of the threaded rod 8, a limiting plate 10 fixedly connected to the movable rod 9, an anti-slip pad 11 fixedly connected to the limiting plate 10, and two support components arranged inside the box body 7.

[0037] It should be noted that the protection device is limited and fixed on the precast staircase body 1, so as to facilitate the quick installation and disassembly of the protection device, improve the work efficiency during its installation and disassembly, and at the same time improve the versatility of the protection device, which is applicable to precast staircase bodies 1 of different sizes. By setting the anti-slip pad 11, the stability of the limiting plate 10 during limiting and fixing is further increased, making the limiting plate 10 not easy to slide, and ensuring the stability of the installation of the protection device.

[0038] Please refer to Figures 1-3 , in this embodiment, the support component includes a support block 12 fixedly connected to the movable rod 9, a support groove 13 opened on the inner wall of the box body 7, a support rod 14 fixedly connected inside the support groove 13, and a support spring 15 sleeved on the outside of the support rod 14 and fixedly connected to one side of the support block 12. The outside of the support block 12 is slidably connected to the inside of the support groove 13, a sliding through hole is opened inside the support block 12, and the outside of the support rod 14 is slidably connected to the inside of the sliding through hole.

[0039] It should be noted that by setting the support spring 15 to stretch, the limiting plate 10 is limited and supported, further increasing the stability of the limiting plate 10 during limiting and fixing, and the support plate 2 is not easy to slide off, making the protection device fixed more stably.

[0040] Please refer to Figures 1-3 , in this embodiment, the protection component includes a protection plate 16 placed on the precast staircase body 1 and a positioning plate 17 slidably connected inside the protection plate 16. The protection plate 16 is L-shaped, anti-slip stripes are provided on the protection plate 16, a positioning groove is opened on the protection plate 16, and the size of the positioning plate 17 is adapted to the size of the positioning groove.

[0041] It should be noted that by setting the protection component, the effect of protecting the precast staircase body 1 is achieved, so that a plurality of protection plates 16 can be conveniently fixed by sequentially plugging the heads and tails, which is convenient for installation and disassembly, and thus convenient for recycling, as well as for handling and storage. At the same time, the overall total weight of the protection plate 16 is relatively large, and it is not easy to move and fall off even when encountering a large external force. By setting the anti-slip stripes, it is convenient to walk on the protection plate 16 to avoid slipping, further ensuring the safety of construction workers and improving the safety of the precast staircase body 1.

[0042] The working principle of the above embodiment is:

[0043] 1) First, install the precast staircase body 1. Prepare the construction tools such as steel wire ropes, lifting appliances, snap rings, bolts, etc. required for hoisting, and ensure that their strength meets the hoisting requirements of the precast staircase body 1. Use a special lifting frame or hoist to lift the precast staircase body 1 above the installation position. During the hoisting process, ensure that the precast staircase body 1 is in the correct posture to avoid collision or damage. Make a slight pause at an appropriate position above the working layer, and let the construction workers hold the component by hand to adjust the direction, ensuring that the side line of the staircase slab is aligned with the installation control line on the ladder beam. When lowering the precast staircase body 1, stop steadily and lower it slowly. It is strictly prohibited to lower it quickly and violently to avoid causing cracks in the slab surface due to vibration. Use tools such as crowbars to finely adjust the position of the staircase slab until its position is correct and it is placed flat. According to the requirements of the drawing, tie and connect the reserved steel bars and the steel bars on the precast staircase body 1 to ensure that the steel bars are tied firmly and evenly. For the joint parts that need grouting, grouting treatment should be carried out in a timely manner, and a slightly expanded concrete or mortar with a strength grade one higher than that of the structure should be used for joint filling.

[0044] 2) When using the protection device, by setting the protection mechanism, adjust the distance between the two support columns 3 according to the size of the precast staircase body 1. At the same time, make the movable rod 9 slide inside the sleeve 5 to adjust its length, thereby increasing the protection range of the protection device. Then insert the two support plates 2 on the precast staircase body 1. Rotate the threaded rod 8, and the threaded rod 8 drives the movable rod 9 to move. The movable rod 9 drives the limiting plate 10 to move and be in close contact with the bottom of the precast staircase body 1, thereby fixing the support plate 2 on the precast staircase body 1. By setting the anti-slip pad 11, increase the stability when the limiting plate 10 is limited and fixed.

[0045] 3) By setting the support spring 15 to stretch, limit and support the limiting plate 10, further increase the stability when the limiting plate 10 is limited and fixed, and ensure the stability when the protection device is used. By setting the protection component, place the protection plate 16 on the precast staircase body 1, and then put another protection plate 16 on the positioning plate 17, and insert the positioning plate 17 into the positioning groove opened on another protection plate 16, so that multiple protection plates 16 can be conveniently fixed by sequentially connecting end to end, which is convenient for installation and disassembly, and thus convenient for recycling, as well as convenient for handling and storage, facilitating the use of users and improving the practicability of the protection device.

Claims

1. A temporary protection mechanism for prefabricated stairs, characterized in that: It comprises a prefabricated staircase body (1), a protective mechanism arranged on the prefabricated staircase body (1), and a protective component arranged on the prefabricated staircase body (1); The protection mechanism comprises two support plates (2) slidably connected to the prefabricated staircase body (1), support columns (3) fixedly connected to the two support plates (2), two connection seats (4) fixedly connected to the two support columns (3), sleeves (5) hinged inside the two right connection seats (4), and connection rods (6) slidably connected inside the two sleeves (5) and hinged inside the two left connection seats (4); A box body (7) fixedly connected to a support plate (2), a threaded rod (8) rotatably connected to the inside of the box body (7), a movable rod (9) threadedly connected to the outside of the threaded rod (8), a limit plate (10) fixedly connected to the movable rod (9), an anti-slip pad (11) fixedly connected to the limit plate (10), and two support assemblies arranged inside the box body (7).

2. A prefabricated stair temporary protection mechanism according to claim 1, characterized in that: The support assembly comprises a support block (12) fixedly connected to the movable rod (9), a support groove (13) formed on the inner wall of the box body (7), a support rod (14) fixedly connected to the inside of the support groove (13), and a support spring (15) sleeved on the outside of the support rod (14) and fixedly connected to one side of the support block (12).

3. A prefabricated stair temporary protection mechanism according to claim 1, characterized in that: The protection assembly comprises a protection plate (16) placed on the prefabricated staircase body (1) and a positioning plate (17) slidably connected to the inside of the protection plate (16).

4. A prefabricated stair temporary protection mechanism according to claim 1, characterized in that: The support plate (2) is U-shaped.

5. A prefabricated stair temporary protection mechanism according to claim 2, characterized in that: The outer side of the support block (12) is slidably connected to the inside of the support groove (13).

6. A prefabricated stair temporary protection mechanism according to claim 2, characterized in that: A sliding through hole is provided inside the support block (12), and the outer side of the support rod (14) is slidably connected to the inside of the sliding through hole.

7. A prefabricated stair temporary protection mechanism according to claim 3, characterized in that: The protective plate (16) is L-shaped, and anti-slip stripes are provided on the protective plate (16).

8. The prefabricated stair temporary protection mechanism according to claim 3 is characterized in that: The protective plate (16) is provided with a positioning groove, and the size of the positioning plate (17) is adapted to the size of the positioning groove.

Images