A prefabricated stair lateral reinforcement structure

Abstract

The utility model discloses a prefabricated stair lateral reinforcing structure relates to the field of stair installation technology, it includes prefabricated stair, and prefabricated stair includes a plurality of tread, and the fixedly connected with connecting plate all on the tread, and the cross section of connecting plate is L type, and the screw sleeve is fixed and set up in the tread along the verticality, and the bolt is equipped on the connecting plate, and the bolt is inserted into the screw sleeve through the connecting plate, and is all screwed with the screw sleeve and connecting plate, and the side away from the tread of connecting plate is welded with the steel sheet, and a plurality of positioning block no.

Description

Technical Field

[0001] This utility model relates to the field of staircase installation technology, and in particular to a prefabricated staircase lateral reinforcement structure. Background Technology

[0002] Currently, prefabricated stairs are widely used in building construction due to their high component quality, energy efficiency, and environmental friendliness. Workers can put them into use immediately after grouting is completed and the prefabricated stairs are installed with the walls, resulting in high installation efficiency.

[0003] The relevant technology can be found in Chinese Patent No. CN221972848U, which discloses a precast concrete staircase, including a floor slab and a precast concrete staircase body. The connecting mechanism, in conjunction with the use of the precast concrete staircase body, allows the precast concrete staircase body to be lifted and placed between floor slabs using hoisting equipment. The positioning block installed on the bottom surface of the precast concrete staircase body is inserted into the positioning hole opened on the top surface of the floor slab. After the connecting plate is installed into the horizontal groove on the bottom surface of the floor slab, the screw knob on the side wall of the fixing plate is rotated in sequence. The screw knob pushes the movable plate outward through the rotating block until the limiting plate installed on the outer wall of the movable plate passes through the positioning hole opened on the side wall of the positioning block and is inserted into the slot. Thus, the precast concrete staircase body can be conveniently and quickly connected and installed between floor slabs without the use of other tools, so that the precast concrete staircase body can be stably connected between the floor slabs.

[0004] Regarding the aforementioned technologies, prefabricated stairs are fixed to the main structure's shear wall laterally via grouting during installation. This single stress distribution makes it prone to tilting or detachment between the stairs and the shear wall, which is detrimental to improving the structural stability of the stairs. Utility Model Content

[0005] To improve the structural stability of stairs, this application provides a prefabricated staircase lateral reinforcement structure.

[0006] This application provides a prefabricated staircase lateral reinforcement structure, which adopts the following technical solution: A prefabricated staircase lateral reinforcement structure includes a prefabricated staircase with several treads fixedly connected. Reinforcing bars are fixedly embedded within each tread. A connecting plate with an L-shaped cross-section is provided inside the tread on the side closest to the wall. One side of the connecting plate is fixedly connected to the tread, and the other side faces the wall. A connector for fixing the connecting plate is provided between the connecting plate and the tread. A steel plate facing the connecting plate is pre-embedded in the wall on the side closest to the tread. In the installed state, the steel plate and the connecting plate are fixed by welding.

[0007] By adopting the above technical solution, the steel bars support and reinforce the treads, the treads support and fix the connecting plates through the connectors, the walls support and fix the steel plates, and the steel plates are fixedly connected to the connecting plates. This allows the walls to support and fix the connecting plates through the steel plates, thereby supporting and fixing the treads. This helps to enhance the connection stability between the treads and the walls and reduces the probability of the prefabricated stairs detaching from or tilting from the walls.

[0008] Optionally, the connector includes several bolts, and the connecting plate has through holes. The bolts pass through the through holes and are inserted into the pedal, and are threadedly connected to the connecting plate and the pedal.

[0009] By adopting the above technical solution, the pedal is fixed and limited by bolts to the connecting plate, and the bolts limit the connection of the connecting plate through the through hole, which helps to improve the connection stability between the connecting plate and the pedal.

[0010] Optionally, the pedal is provided with a threaded sleeve, which is inserted vertically into the pedal, and the opening of the threaded sleeve is directly opposite the bolt. After the bolt passes through the connecting plate, it is inserted into the threaded sleeve and threadedly connected to the threaded sleeve.

[0011] By adopting the above technical solution, the bolt is connected to the pedal through the threaded sleeve, and the pedal limits and guides the bolt through the threaded sleeve, which further strengthens the connection between the connecting plate and the pedal and reduces the probability of misalignment between the connecting plate and the pedal.

[0012] Optionally, mortar is injected into the pedal and between the pedal and the wall, filling the gap between the connecting plate and the pedal, as well as the gap between the pedal and the wall.

[0013] By adopting the above technical solution, the mortar fills the gaps between the treads and the wall when it flows, and further strengthens the connection between the treads and the wall after the mortar solidifies. This helps to reduce the possibility of the prefabricated stairs separating from the wall and tilting, and improves the installation stability and safety of the prefabricated stairs.

[0014] Optionally, the steel plate includes a fixed plate and several connecting rings, the fixed plate and the connecting plate are fixedly connected, and the several connecting rings are parallel to each other and arranged vertically on the fixed plate.

[0015] By adopting the above technical solution, several connecting rings provide lateral support to the fixing plate, which helps to enhance the stability of the fixing plate in the wall, thereby enhancing the connection stability between the fixing plate and the connecting plate.

[0016] Optionally, the fixing plate has several positioning grooves opened horizontally along its side, and the connecting plate has several positioning blocks that are adapted to the positioning grooves. The positioning blocks are inserted into the positioning grooves and fit against the inner wall of the positioning grooves.

[0017] By adopting the above technical solution, the steel plate positions the positioning block one through the positioning groove, thereby positioning the connecting plate and the connecting plate, ultimately making the connecting plate and the steel plate face each other, which helps to improve the installation accuracy between the connecting plate and the steel plate.

[0018] Optionally, the connecting plate has several positioning holes, and the positioning holes and positioning blocks are alternately arranged.

[0019] By adopting the above technical solution, during installation, the positioning hole increases the welding area between the connecting plate and the steel plate, which helps to enhance the connection stability between the connecting plate and the steel plate.

[0020] Optionally, a plurality of positioning blocks II are fixed on the side of the fixing plate near the connecting plate, and a plurality of positioning holes II adapted to the positioning blocks II are opened on the side of the connecting plate near the wall. The positioning blocks II are inserted into the positioning holes II, and the side of the positioning blocks II near the wall is in contact with the inner wall of the positioning holes II.

[0021] By adopting the above technical solution, the connecting plate positions the positioning block 2 through the positioning hole 2, thereby positioning the connecting plate against the fixing plate, and finally making the connecting plate and the fixing plate face each other, which helps to improve the installation accuracy between the connecting plate and the steel plate.

[0022] Optionally, the second positioning block has a trapezoidal cross-section, and a certain gap is left between the second positioning block and the second positioning hole.

[0023] By adopting the above technical solution, a certain gap is left between positioning block two and positioning hole two, which increases the welding area between the connecting plate and the steel plate. The welding residue fills the gap, which helps to strengthen the connection between the connecting plate and the steel plate, thereby strengthening the connection between the connecting plate and the wall, and ultimately enhancing the installation stability between the prefabricated staircase and the wall.

[0024] In summary, this application includes at least one of the following beneficial technical effects of prefabricated staircase lateral reinforcement structures: 1. The steel bars support and reinforce the treads, and the treads support and fix the connecting plates through the connectors. The walls support and fix the steel plates, and the steel plates are fixedly connected to the connecting plates. This allows the walls to support and fix the connecting plates through the steel plates, thereby supporting and fixing the treads. This helps to enhance the connection stability between the treads and the walls and reduces the probability of the prefabricated stairs separating from or tilting from the walls. 2. The pedal is fixed and limited to the connecting plate by bolts. The bolts limit the connection plate through the through holes, which helps to improve the connection stability between the connecting plate and the pedal. 3. The bolt is connected to the pedal through a threaded sleeve. The pedal limits and guides the bolt through the threaded sleeve, further reinforcing the connection between the connecting plate and the pedal and reducing the probability of misalignment between the connecting plate and the pedal. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0026] Figure 2 This is a schematic diagram designed to highlight the positions of the connecting plate and the steel plate.

[0027] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0028] Figure 4 It is a cross-sectional schematic diagram of the pedal and the wall.

[0029] Figure 5 This is a schematic diagram of the overall structure of Example 2.

[0030] Explanation of reference numerals in the attached drawings: 1. Precast staircase; 11. Tread; 12. Threaded sleeve; 2. Wall; 3. Connecting plate; 31. Through hole; 32. Bolt; 33. Positioning block one; 34. Positioning hole one; 35. Positioning hole two; 4. Steel plate; 41. Fixing plate; 411. Positioning groove; 412. Positioning block two; 42. Connecting ring. Detailed Implementation

[0031] The present application will be further described in detail below with reference to all the accompanying drawings.

[0032] This application discloses a prefabricated staircase lateral reinforcement structure.

[0033] Example 1 Reference Figure 1 A lateral reinforcement structure for a prefabricated staircase 1 includes a prefabricated staircase 1, which includes a plurality of treads 11. The treads 11 are parallel to each other and fixedly connected. Steel bars are fixedly installed inside the treads 11, which helps to improve the structural stability of the treads 11, thereby improving the overall structural stability of the prefabricated staircase 1.

[0034] Reference Figure 2 and Figure 3 A connecting plate 3 is fixedly installed on the side of the pedal 11 near the wall 2. The connecting plate 3 has an L-shaped cross-section. A receiving groove adapted to the connecting plate 3 is provided on the pedal 11. One side of the connecting plate 3 is located in the receiving groove and is in contact with the inner wall of the receiving groove. The other side of the connecting plate 3 is in contact with the wall 2. The pedal 11 supports and limits the connecting plate 3 through the receiving groove.

[0035] Reference Figure 3 and Figure 4Each side of the connecting plate 3 located inside the pedal 11 has a vertically opening through hole 31. A bolt 32 is installed in the through hole 31. A threaded sleeve 12 adapted to the bolt 32 is fixed vertically inside the pedal 11. The bolt 32 passes through the insertion hole and is inserted into the threaded sleeve 12, and is threadedly connected to both the through hole 31 and the threaded sleeve 12. The pedal 11 fixes and limits the bolt 32 through the threaded sleeve 12, and the bolt 32 limits the connecting plate 3 through the through hole 31. This ensures that the pedal 11 fixes and limits the connecting plate 3, reducing the probability of misalignment between the connecting plate 3 and the pedal 11, and improving the overall stability of the structure.

[0036] Reference Figure 4 A steel plate 4 is pre-embedded in the wall 2 near the pedal 11. The steel plate 4 is placed vertically and includes a fixing plate 41 and connecting rings 42. The connecting rings 42 are evenly arranged vertically on the side of the fixing plate 41 away from the pedal 11 and are fixedly connected to the fixing plate 41. The connecting rings 42 provide lateral support to the fixing plate 41, which helps to improve the structural stability of the fixing plate 41 within the wall 2.

[0037] Reference Figure 2 and Figure 3 The connecting plate 3 is fixedly connected to the fixing plate 41 by welding on the side perpendicular to the tread 11, thereby fixing the tread 11 to the steel plate 4, and then fixing the tread 11 to the wall 2. This helps to strengthen the connection stability between the tread 11 and the wall 2, reduce the probability of the prefabricated staircase 1 separating from or tilting to the wall 2, and improve the safety of the staircase.

[0038] Reference Figure 2 and Figure 3 A number of positioning blocks 33 are fixed horizontally on the side of the connecting plate 3 near the wall 2. A number of positioning grooves 411 adapted to the positioning blocks 33 are opened on the steel plate 4. The positioning grooves 411 are recessed from the surface of the wall 2 into the interior of the wall 2. When the connecting plate 3 and the fixing plate 41 are attached, the positioning blocks 33 are inserted into the positioning grooves 411 and attached to the inner wall of the positioning grooves 411. The steel plate 4 limits the positioning blocks 33 through the positioning grooves 411, thereby limiting the connecting plate 3. This helps to improve the installation accuracy and efficiency between the connecting plate 3 and the steel plate 4.

[0039] Reference Figure 2 and Figure 3 The connecting plate 3 has several positioning holes 34, which are parallel to each other. The positioning holes 34 and the positioning blocks 33 are staggered. During welding, the steel plate 4 is welded along the inner wall of the positioning holes 34, which increases the welding area between the steel plate 4 and the connecting plate 3 and helps to improve the connection stability between the connecting plate 3 and the steel plate 4.

[0040] Reference Figure 2Mortar is poured between the connecting plate 3 and the tread 11, and between the tread 11 and the wall 2. After the mortar solidifies, it further reinforces the tread 11 and the wall 2, and at the same time, it further reinforces the connecting plate 3 and the tread 11, which helps to improve the overall stability of the structure and thus improve the safety of the prefabricated staircase 1.

[0041] The implementation principle of the prefabricated staircase lateral reinforcement structure in this application embodiment is as follows: the tread 11 is fixed to the bolt 32 by the threaded sleeve 12, thereby fixing the connecting plate 3. The wall 2 supports and fixes the connecting plate 3 by the steel plate 4, thereby supporting and fixing the tread 11, and thus supporting and fixing the prefabricated staircase 1 as a whole. This helps to enhance the connection stability between the prefabricated staircase 1 and the wall 2. The steel plate 4 positions the positioning block 33 by the positioning groove 411, thereby positioning the connecting plate 3. This helps to improve the installation accuracy between the connecting plate 3 and the fixing plate 41. Mortar is poured between the prefabricated staircase 1 and the wall 2 to further reinforce the connection between the prefabricated staircase 1 and the wall 2, which helps to improve the overall installation stability and safety of the structure.

[0042] Example 2 The difference between this embodiment and embodiment 1 is that multiple positioning blocks 412 are fixed on the side of the connecting plate 3 near the wall 2.

[0043] Reference Figure 5 All positioning blocks 412 are parallel to each other. The cross-section of positioning block 412 is trapezoidal. Positioning holes 35 are opened on the fixing plate 41. Positioning blocks 412 are inserted into positioning holes 35. The width of the side of the positioning block closest to the fixing plate 41 is adapted to the width of positioning block 412. The connecting plate 3 positions the positioning block 412 through the positioning holes 35, so that the connecting plate 3 and the fixing plate 41 are aligned, which helps to improve the installation accuracy and installation efficiency of the prefabricated staircase 1.

[0044] Reference Figure 5 The gap between the positioning block 412 and the inner wall of the positioning hole 35 gradually increases from the steel plate 4 toward the connecting plate 3. The operator welds the steel plate 4 along the inner wall of the positioning hole 35 and fills the gap with the welding residue, which further strengthens the connection between the connecting plate 3 and the steel plate 4 and helps to improve the overall stability of the structure.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A prefabricated staircase lateral reinforcement structure, comprising a prefabricated staircase (1), the prefabricated staircase (1) comprising a plurality of treads (11), the plurality of treads (11) being fixedly connected, characterized in that: The pedal (11) is fixed with steel bars. A connecting plate (3) is provided inside the side of the pedal (11) near the wall (2). The connecting plate (3) has an L-shaped cross-section. One side of the connecting plate (3) is fixedly connected to the pedal (11), and the other side is directly opposite the wall (2). A connector for fixing the connecting plate (3) is provided between the connecting plate (3) and the pedal (11). A steel plate (4) is pre-embedded on the side of the wall (2) near the pedal (11) and is directly opposite the connecting plate (3). In the installed state, the steel plate (4) is fixed to the connecting plate (3) by welding.

2. The prefabricated staircase lateral reinforcement structure according to claim 1, characterized in that: The connector includes several bolts (32), and the connecting plate (3) has through holes (31). The bolts (32) pass through the through holes (31) and are inserted into the pedal (11) and threadedly connected to the connecting plate (3) and the pedal (11).

3. The prefabricated staircase lateral reinforcement structure according to claim 1, characterized in that: The pedal (11) is provided with a threaded sleeve (12). The threaded sleeve (12) is inserted vertically into the pedal (11), and the opening of the threaded sleeve (12) is directly opposite the bolt (32). The bolt (32) passes through the connecting plate (3) and is inserted into the threaded sleeve (12) and threadedly connected to the threaded sleeve (12).

4. The prefabricated staircase lateral reinforcement structure according to claim 1, characterized in that: Mortar is poured into the pedal (11) and between the pedal (11) and the wall (2). The mortar fills the gap between the connecting plate (3) and the pedal (11) and the gap between the pedal (11) and the wall (2).

5. The prefabricated staircase lateral reinforcement structure according to claim 1, characterized in that: The steel plate (4) includes a fixed plate (41) and several connecting rings (42). The fixed plate (41) is fixedly connected to the connecting plate (3), and the several connecting rings (42) are parallel to each other and arranged vertically on the fixed plate (41).

6. The prefabricated staircase lateral reinforcement structure according to claim 5, characterized in that: The fixing plate (41) has several positioning grooves (411) opened horizontally, and the connecting plate (3) has several positioning blocks (33) that are adapted to the positioning grooves (411). The positioning blocks are inserted into the positioning grooves (411) and fit against the inner wall of the positioning grooves (411).

7. The prefabricated staircase lateral reinforcement structure according to claim 1, characterized in that: The connecting plate (3) has several positioning holes (34), and the positioning holes (34) and positioning blocks (33) are alternately arranged.

8. A prefabricated staircase lateral reinforcement structure according to claim 5, characterized in that: The fixing plate (41) is fixed with a plurality of positioning blocks (412) on the side near the connecting plate (3). The connecting plate (3) has a plurality of positioning holes (35) that are adapted to the positioning blocks (412) on the side near the wall (2). The positioning blocks (412) are inserted into the positioning holes (35), and the side of the positioning blocks (412) near the wall (2) is in contact with the inner wall of the positioning holes (35).

9. A prefabricated staircase lateral reinforcement structure according to claim 8, characterized in that: The second positioning block (412) has a trapezoidal cross-section, and there is a certain gap between the second positioning block (412) and the second positioning hole (35).

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