Fabricated anti-seismic stair

By designing prefabricated seismic stairs, using metal frames and buffer components to resist seismic forces, combined with sound insulation, fire resistance, corrosion resistance and wear resistance layers, the problems of insufficient seismic performance and long construction cycle of prefabricated stairs are solved, and the earthquake resistance capacity and improvement of construction efficiency are achieved.

CN120575673APending Publication Date: 2025-09-02JIANGSU KAIXIANG CONSTR GRP CO LTD
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Patent Information

Application Number
CN202510893960.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2025-09-02

AI Technical Summary

Technical Problem

The existing prefabricated stairs have shortcomings in seismic resistance, especially in areas with frequent earthquakes, with long construction periods, many on-site wet operations, and difficult to control quality.

Method used

A prefabricated seismic staircase is designed, adopting a metal frame structure, and additional buffer and shock absorbing components are added at the splicing nodes and support points, including springs and buffer components, which resist seismic forces through the extrusion and sliding of the spring. At the same time, sound insulation, fire resistance, corrosion resistance and wear resistance layers are set inside the staircase to improve comprehensive performance.

Benefits of technology

Effectively resist earthquake forces, reduce earthquake damage and casualties, shorten construction cycles, improve earthquake resistance, reduce noise interference, ensure fire safety, resist chemical corrosion, extend service life, and enhance the comprehensive function of stairs.

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Abstract

The invention relates to an assembly type anti-seismic stair, and relates to the technical field of anti-seismic stairs, the assembly type anti-seismic stair comprises a wall body, connecting blocks are fixedly connected to the two sides of the upper portion of the wall body, grooves which are evenly distributed are formed in the sides, close to each other, of the connecting blocks, connecting rods are fixedly connected to the interiors of the grooves, and the connecting rods are sleeved with first springs; connecting plates are fixedly connected to the sides, close to each other, of the connecting rods, the connecting plates are slidably connected to the interiors of the connecting grooves, second springs are fixedly connected to the sides, away from each other, of the connecting plates, the second springs are fixedly connected to the interiors of the connecting grooves, and the connecting grooves are formed in the sides, away from each other, of the connecting columns; and the connecting columns are connected into the grooves in a sliding manner. The stair has the effect of effectively resisting earthquake force, damage and casualties during an earthquake are reduced, the overall anti-seismic capacity is improved, the stair body can be conveniently disassembled and assembled, and the construction period is greatly shortened.
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Description

Technical Field

[0001] The present invention relates to the technical field of earthquake-resistant stairs, and in particular to an assembled earthquake-resistant staircase. Background Art

[0002] With the development of building industrialization, prefabricated buildings have gradually become an important development direction in the construction industry due to their advantages such as fast construction speed, controlled quality, environmental protection and energy saving. As an important vertical transportation component in a building, the seismic performance of stairs is directly related to the overall safety of the building.

[0003] While traditional cast-in-place concrete stairs offer some seismic resistance, they suffer from long construction periods, frequent wet work on-site, and difficulty controlling quality. Furthermore, while existing prefabricated stairs have improved construction efficiency, they still lack seismic resistance. This is especially true in earthquake-prone areas, where even higher seismic resistance is required.

[0004] In response to the above-mentioned related technologies, a prefabricated staircase is provided, which is equipped with a metal frame, an assembled structure, and certain buffering, shock-absorbing and earthquake-resistant structures are added at the splicing nodes and the overall support points. Summary of the Invention

[0005] The purpose of this application is to provide an assembled earthquake-resistant staircase, aiming to improve the problems of the prior art such as long construction period, frequent wet work on site, and difficult quality control.

[0006] The lifting of the lifting form is to lock the locking plate, and the locking plate is locked. The locking plate is locked and the locking plate is locked. The staircase is closed and locked. The staircase is closed by a screw bolt, and the locking plate is locked. The staircase is closed by a screw bolt, and the locking plate is locked.

[0007] Preferably, the buffer assembly includes a plug-in block, which is fixedly connected to the adjacent side of the support plate. The interior of the slide groove is fixedly connected with a uniformly distributed third spring, which is fixedly connected to the distant side of the support plate to facilitate support and limitation of the support plate.

[0008] Preferably, a plug hole is provided inside the plug block, and the plug block is slidably connected to the inside of the plug slot. The plug slot is provided on the side away from the mounting block, which is convenient for supporting and limiting the plug block. A through slot is provided on the side away from the plug slot, and a fixing rod is slidably connected to the inside of the through slot. The far end of the fixing rod is fixedly connected to a pulling block, and a fourth spring is provided on the outside of the fixing rod to facilitate the rebound of the movable plate. A disassembly assembly is fixedly connected to the close end of the fixing rod, and the disassembly assembly is used to facilitate the disassembly and assembly of the stairs.

[0009] Preferably, the disassembly and assembly assembly includes a movable plate, which is fixedly connected to the adjacent end of the fixed rod, and the adjacent side of the movable plate is fixedly connected to an insertion rod, which is slidably connected to the inside of the socket to facilitate supporting and limiting the plug-in block, and the adjacent side of the mounting block is fixedly connected to the stair body.

[0010] Preferably, the interior of the stair body is fixedly connected to a sound insulation layer, which can significantly reduce noise interference; the exterior of the sound insulation layer is fixedly connected to a fireproof layer, which effectively provides fire protection for the stair body; the exterior of the fireproof layer is fixedly connected to a corrosion-resistant layer, which effectively resists corrosion of the stair material by moisture, acids, alkalis and other chemicals in the air; the exterior of the corrosion-resistant layer is fixedly connected to a wear-resistant layer, which can withstand long-term friction and use.

[0011] Preferably, evenly distributed anti-slip strips are fixedly connected to the upper side of the stair body, which effectively improves the anti-slip effect of the stair body when in use.

[0012] Preferably, both sides of the through slot are fixedly connected with second limiting slots, and the movable plate is slidably connected to the inside of the second limiting slots to support and limit the movable plate.

[0013] Preferably, one end of the fourth spring is fixedly connected to the inside of the through slot, and the other end of the fourth spring is fixedly connected to the side away from the movable plate, so as to support and limit the movable plate.

[0014] Preferably, a support rod is fixedly connected to the inner right side of the wall, a cross plate is fixedly connected to the top end of the support rod, and the cross plate is fixedly connected to the lower side of the connecting block, thereby further improving the stability of the staircase body when in use.

[0015] Preferably, one end of the first spring is fixedly connected to the inside of the groove, and the other end of the first spring is fixedly connected to the side away from the connecting column to support and limit the connecting column.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. This application moves the stair body to drive the mounting block to slide inside the slide groove, thereby squeezing the support plate and the third spring. At the same time, the support plate moves to drive the connecting column to slide outside the connecting rod, thereby squeezing the first spring. At the same time, the connecting rod and the connecting plate slide inside the connecting groove to squeeze the second spring, thereby effectively resisting the effects of earthquake forces, reducing damage and casualties during earthquakes, and improving the overall earthquake resistance.

[0017] 2. This application manually pulls the pulling block to drive the fixed rod and the movable plate to move, so that the movable plate squeezes the fourth spring, and at the same time the movement of the movable plate drives the plug rod to disengage from the socket, and then moves the stair body to drive the installation block to disengage from the slide groove, and at the same time makes the plug-in block disengage from the plug-in groove, thereby facilitating the disassembly and assembly of the stair body, greatly shortening the construction period, and reducing the impact on the surrounding environment during the construction process.

[0018] 3. This application effectively reduces the noise transmission in the stairwell by setting up a sound insulation layer, which can significantly reduce noise interference. The fireproof layer provided provides effective fire protection, ensuring that the stairs can play their due refuge function when a fire occurs. The corrosion-resistant layer provided effectively resists the corrosion of moisture, acids, alkalis and other chemicals in the air to the stair materials. The wear-resistant layer provided can withstand long-term friction and use, thereby achieving the improvement of sound insulation, fire prevention, corrosion resistance and wear resistance and other performance, and enhancing the comprehensive function and service life of the stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an assembled earthquake-resistant staircase according to an embodiment of the present application; Figure 2 This is a schematic diagram of the partial structure disassembly of an assembled seismic-resistant staircase according to an embodiment of the present application; Figure 3 This is a cross-sectional view of a connection block of an assembled seismic-resistant staircase according to an embodiment of the present application; Figure 4 for Figure 3 A magnified view of point A in the figure; Figure 5 This is a cross-sectional view of an installation block of an assembled seismic-resistant staircase according to an embodiment of the present application; Figure 6 It is a schematic diagram of the internal structure of the stair body of an assembled earthquake-resistant staircase in an embodiment of the present application.

[0020] Explanation of the accompanying drawings: 1. Wall; 2. Connecting block; 3. Groove; 4. Connecting rod; 5. First spring; 6. Connecting plate; 7. Connecting groove; 8. Connecting column; 9. Second spring; 10. First limiting groove; 11. Support plate; 12. Slide groove; 13. Third spring; 14. Plug-in block; 15. Socket; 16. Plug-in groove; 17. Mounting block; 18. Through groove; 19. Fixed rod; 20. Pull block; 21. Fourth spring; 22. Moving plate; 23. Plug-in rod; 24. Second limiting groove; 25. Stair body; 26. Anti-slip strip; 27. Support rod; 28. Cross plate; 29. ​​Sound insulation layer; 30. Fireproof layer; 31. Corrosion-resistant layer; 32. Wear-resistant layer. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0022] Example: Reference Figures 1-4 , an assembled seismic-resistant staircase, including a wall 1, with connecting blocks 2 fixedly connected on both sides of the upper part of the wall 1, and evenly distributed grooves 3 are opened on the adjacent side of the connecting blocks 2, and a connecting rod 4 is fixedly connected to the inside of the groove 3, and a first spring 5 is sleeved on the outside of the connecting rod 4, and a connecting plate 6 is fixedly connected to the adjacent side of the connecting rod 4, and the connecting plate 6 is slidably connected to the inside of the connecting groove 7, and a second spring 9 is fixedly connected to the inside of the connecting groove 7 on the side away from the connecting plate 6, and the second spring 9 is fixedly connected to the inside of the connecting groove 7, and the connecting groove 7 is set on the side away from the connecting column 8, and the connecting column 8 is slidably connected to the inside of the groove 3, and the end close to the connecting column 8 A support plate 11 is fixedly connected, and a slide groove 12 is provided on the adjacent side of the groove 3. The support plate 11 is slidably connected to the inside of the slide groove 12. First limit grooves 10 are provided on both sides of the inside of the groove 3. The connecting column 8 is slidably connected to the inside of the first limit groove 10. The adjacent side of the support plate 11 is fixedly connected with a uniformly distributed buffer component, and the buffer component is used to further effectively resist seismic forces; the buffer component includes a plug-in block 14, which is fixedly connected to the adjacent side of the support plate 11. The inside of the slide groove 12 is fixedly connected with a uniformly distributed third spring 13, and the third spring 13 is fixedly connected to the distant side of the support plate 11.

[0023] When using this device, when the stair body 25 shakes, the stair body 25 moves and drives the mounting block 17 to move, so that the mounting block 17 slides inside the slide groove 12, and then squeezes the support plate 11. The support plate 11 moves to squeeze the third spring 13. At the same time, the support plate 11 moves and drives the connecting column 8 to move, so that the connecting column 8 slides outside the connecting rod 4. At the same time, the connecting column 8 slides inside the first limiting groove 10, and then squeezes the first spring 5. At the same time, the connecting rod 4 and the connecting plate 6 slide inside the connecting groove 7, and then squeezes the second spring 9, thereby effectively resisting the effect of earthquake force, reducing damage and casualties during earthquakes, and improving the overall earthquake resistance.

[0024] Reference Figure 1 、 Figure 2 、 Figure 5 The plug-in block 14 is provided with a plug hole 15, and the plug-in block 14 is slidably connected to the inside of the plug-in slot 16. The plug-in slot 16 is provided on the side away from the mounting block 17, and a through slot 18 is provided on the side away from the plug-in slot 16. The inside of the through slot 18 is slidably connected with a fixing rod 19, and the far end of the fixing rod 19 is fixedly connected to the pulling block 20. The outside of the fixing rod 19 is provided with a fourth spring 21, and the close end of the fixing rod 19 is fixedly connected to a disassembly assembly, which is used to facilitate the disassembly and assembly of the stairs; the disassembly assembly includes a movable plate 22, which is fixedly connected to the close end of the fixing rod 19, and the close side of the movable plate 22 is fixedly connected with a plug rod 23. The plug rod 23 is slidably connected to the inside of the plug hole 15, and the close side of the mounting block 17 is fixedly connected with the stair body 25.

[0025] When the stair body 25 is disassembled, the pulling block 20 is manually pulled, and the pulling block 20 moves to drive the fixed rod 19 to move, and the fixed rod 19 moves to drive the movable plate 22 to move, so that the movable plate 22 slides inside the through groove 18, and then squeezes the fourth spring 21. At the same time, the movable plate 22 moves to drive the insertion rod 23 to move, so that the insertion rod 23 is disengaged from the insertion hole 15, and then the stair body 25 is moved. The stair body 25 moves and drives the installation block 17 to move, so that the installation block 17 is disengaged from the slide groove 12, and at the same time, the plug-in block 14 is disengaged from the plug-in groove 16, so that the stair body 25 can be easily disassembled and assembled, which greatly shortens the construction period and reduces the impact on the surrounding environment during construction.

[0026] Reference Figure 1 、 Figure 6 The inside of the stair body 25 is fixedly connected with a sound insulation layer 29, the outside of the sound insulation layer 29 is fixedly connected with a fireproof layer 30, the outside of the fireproof layer 30 is fixedly connected with a corrosion-resistant layer 31, and the outside of the corrosion-resistant layer 31 is fixedly connected with a wear-resistant layer 32.

[0027] The sound insulation layer 29 is usually made of sound-absorbing materials such as glass wool, rock wool, polyurethane foam, rubber sheet, sound insulation foam, etc., which effectively reduces the noise transmission between the stairs. Especially in buildings where the stairs are frequently used, it can significantly reduce noise interference and improve the comfort of the living or working environment. The fireproof layer 30 is made of fireproof gypsum board, fireproof coating, rock wool board, fireproof glass, aluminum alloy, etc., which effectively prevents fire and ensures that the stairs can play their due refuge function in the event of a fire and avoid damage to the building structure. The corrosion-resistant layer 31 is usually made of stainless steel. , hot-dip galvanized steel plates, aluminum alloys, epoxy resin coatings, polyurethane coatings, etc., effectively resist the corrosion of stair materials by moisture, acids, alkalis and other chemicals in the air, extend the service life of the stairs, and set a wear-resistant layer 32. Commonly used materials include composite rubber, polyurethane, epoxy resin, wear-resistant ceramics, stainless steel plates, PVC floors, rubber mats, etc., which can withstand long-term friction and use, maintain the integrity of the stair surface, reduce wear and scratches and other problems, and achieve the ability to improve sound insulation, fire prevention, corrosion resistance and wear resistance, and enhance the comprehensive function and service life of the stairs.

[0028] Reference Figure 1 、 Figure 5 The upper side of the stair body 25 is fixedly connected with evenly distributed anti-slip strips 26; the second limiting grooves 24 are fixedly connected on both sides of the inner part of the through groove 18, and the movable plate 22 is slidably connected to the inner part of the second limiting groove 24; one end of the fourth spring 21 is fixedly connected to the inner part of the through groove 18, and the other end of the fourth spring 21 is fixedly connected to the farther side of the movable plate 22; the inner right side of the wall 1 is fixedly connected with a support rod 27, and the top of the support rod 27 is fixedly connected with a horizontal plate 28, and the horizontal plate 28 is fixedly connected to the lower side of the connecting block 2; one end of the first spring 5 is fixedly connected to the inner part of the groove 3, and the other end of the first spring 5 is fixedly connected to the farther side of the connecting column 8.

[0029] The upper side of the stair body 25 is fixedly connected with the evenly distributed anti-slip strips 26, which effectively improves the anti-slip effect of the stair body 25; the second limiting grooves 24 are fixedly connected to the inner sides of the through groove 18, and the movable plate 22 is slidably connected to the inner side of the second limiting groove 24, which plays a role in supporting and limiting the movable plate 22; one end of the fourth spring 21 is fixedly connected to the inner side of the through groove 18, and the other end of the fourth spring 21 is fixedly connected to the side away from the movable plate 22, which plays a role in supporting and limiting the movable plate 22; a support rod 27 is fixedly connected to the right side of the inner side of the wall 1, and the top of the support rod 27 is fixedly connected to the cross plate 28, which is fixedly connected to the lower side of the connecting block 2, which further improves the stability of the stair body 25 when in use; one end of the first spring 5 is fixedly connected to the inner side of the groove 3, and the other end of the first spring 5 is fixedly connected to the side away from the connecting column 8, which plays a role in supporting and limiting the connecting column 8.

[0030] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. An assembled seismic-resistant staircase, comprising a wall (1), characterized in that: Both sides of the upper part of the wall (1) are fixedly connected with connecting blocks (2), and the adjacent sides of the connecting blocks (2) are provided with evenly distributed grooves (3). The interior of the groove (3) is fixedly connected with a connecting rod (4), and the exterior of the connecting rod (4) is provided with a first spring (5). The adjacent sides of the connecting rod (4) are fixedly connected with a connecting plate (6), and the connecting plate (6) is slidably connected to the interior of the connecting groove (7). The distant side of the connecting plate (6) is fixedly connected with a second spring (9), and the second spring (9) is fixedly connected to the interior of the connecting groove (7). The connecting groove (7) is provided at the connecting groove. The connecting column (8) is slidably connected to the inside of the groove (3) on the side away from the connecting column (8), and the end of the connecting column (8) is fixedly connected to a support plate (11). The side of the groove (3) is provided with a slide groove (12), and the support plate (11) is slidably connected to the inside of the slide groove (12). The inside of the groove (3) is provided with a first limiting groove (10), and the connecting column (8) is slidably connected to the inside of the first limiting groove (10). The side of the support plate (11) is fixedly connected to a uniformly distributed buffer component, and the buffer component is used to further effectively resist earthquake force.

2. The assembled seismic-resistant staircase according to claim 1, characterized in that: The buffer assembly comprises a plug-in block (14), the plug-in block (14) is fixedly connected to the adjacent side of the support plate (11), and the interior of the slide groove (12) is fixedly connected with uniformly distributed third springs (13), and the third springs (13) are fixedly connected to the distant side of the support plate (11).

3. The assembled seismic-resistant staircase according to claim 2, characterized in that: The plug-in block (14) is provided with a plug hole (15) inside, and the plug-in block (14) is slidably connected to the inside of the plug-in slot (16), and the plug-in slot (16) is provided on the side away from the mounting block (17), and the side away from the plug-in slot (16) is provided with a through slot (18), and the inside of the through slot (18) is slidably connected to a fixing rod (19), and the far end of the fixing rod (19) is fixedly connected to a pulling block (20), and the outside of the fixing rod (19) is provided with a fourth spring (21), and the close end of the fixing rod (19) is fixedly connected to a disassembly assembly, and the disassembly assembly is used to facilitate the disassembly and assembly of the stairs.

4. The assembled seismic-resistant staircase according to claim 3, characterized in that: The disassembly assembly comprises a movable plate (22), the movable plate (22) being fixedly connected to an adjacent end of a fixed rod (19), an insertion rod (23) being fixedly connected to the adjacent side of the movable plate (22), the insertion rod (23) being slidably connected to the inside of the insertion hole (15), and a staircase body (25) being fixedly connected to the adjacent side of the mounting block (17).

5. The assembled seismic-resistant staircase according to claim 4, characterized in that: The interior of the staircase body (25) is fixedly connected to a sound insulation layer (29), the exterior of the sound insulation layer (29) is fixedly connected to a fireproof layer (30), the exterior of the fireproof layer (30) is fixedly connected to a corrosion-resistant layer (31), and the exterior of the corrosion-resistant layer (31) is fixedly connected to a wear-resistant layer (32).

6. The assembled seismic-resistant staircase according to claim 4, characterized in that: The upper side of the staircase body (25) is fixedly connected with evenly distributed anti-slip strips (26).

7. The assembled seismic-resistant staircase according to claim 4, characterized in that: Second limiting grooves (24) are fixedly connected to both sides of the interior of the through groove (18), and the movable plate (22) is slidably connected to the interior of the second limiting grooves (24).

8. The assembled seismic-resistant staircase according to claim 3, characterized in that: One end of the fourth spring (21) is fixedly connected to the inside of the through slot (18), and the other end of the fourth spring (21) is fixedly connected to the side away from the movable plate (22).

9. The assembled seismic-resistant staircase according to claim 1, characterized in that: A support rod (27) is fixedly connected to the right side of the interior of the wall (1), a transverse plate (28) is fixedly connected to the top end of the support rod (27), and the transverse plate (28) is fixedly connected to the lower side of the connecting block (2).

10. The assembled seismic-resistant staircase according to claim 1, characterized in that: One end of the first spring (5) is fixedly connected to the inside of the groove (3), and the other end of the first spring (5) is fixedly connected to the far side of the connecting column (8).

Citation Information

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