Rapidly-assembled fabricated building and stair structure thereof

Abstract

The invention provides a quickly-assembled fabricated building and a stair structure thereof. The problems that a traditional prefabricated stair structure is poor in connection stress, poor in anti-seismic property, high in production and manufacturing cost, large in manufacturing difficulty, low in construction efficiency and the like are solved. The assembly type stair structure comprises a stair section component and a supporting system, the stair section component is provided with at least one stair section, and the supporting system is provided with a first locking part and a second locking part which are matched with the upper end and the lower end of the stair section. The locking part locks the space and the corresponding locking unit through the acute angle and the obtuse angle, and stable connection between the stair section and the supporting system is achieved. In addition, external corner reinforcements can be arranged at the ends of the stair sections, and internal corner reinforcements can be arranged in the locking spaces, so that the structural strength is enhanced. According to the design, the construction process is simplified, the structural stability and anti-seismic performance are improved, the manufacturing difficulty and cost are reduced, and the structure is suitable for various buildings.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and more specifically, to a fast-assembled prefabricated building and its staircase structure. The present invention aims to provide a prefabricated staircase solution with novel structure, stable connection, good seismic performance, low production cost, low manufacturing difficulty and high construction efficiency, so as to meet the requirements of modern buildings for high efficiency, economy and safety. Background Art

[0002] With the rapid development of the construction industry, prefabricated buildings have gradually attracted widespread attention due to their advantages such as high factory production efficiency, stable quality, and fast on-site construction speed. As the main traffic building component connecting upper and lower floors, stairs play a vital role in prefabricated buildings. However, the existing prefabricated staircase structures still have many shortcomings in design, manufacturing and construction.

[0003] Traditional prefabricated staircase structures mainly adopt the method of integrated prefabrication or segmented prefabrication and bolt connection. Although the integrated prefabrication method has good integrity, it is difficult to manufacture, has high cost, and has high requirements for transportation and installation conditions. In particular, the integrated connection between the stair section and the stair platform not only increases the manufacturing difficulty, but also greatly increases the prefabrication cost. On the other hand, although the segmented prefabrication and bolt connection method is relatively flexible, it has the problems of poor connection force and poor seismic performance. Bolt connection mainly relies on the friction force of the concrete surface to transmit force. This connection method is prone to sliding when subjected to force, resulting in insufficient stability of the connection part. In addition, bolt connection also requires holes to be opened on the stair section and the support system, which not only increases the manufacturing difficulty, but also affects the overall aesthetics of the stairs. In addition, the bolt holes need to be blocked during the installation process, which increases the complexity of construction.

[0004] In order to overcome these shortcomings, the industry has been exploring more efficient and reliable prefabricated staircase structures. Some new prefabricated staircase structures use more advanced connection methods, such as welding and mechanical locking, but these methods still have some problems. Although the welding connection has high strength, it is difficult to construct and has high technical requirements for welders. At the same time, the stress and deformation that may occur during the welding process will also affect the overall performance of the stairs. Although the mechanical locking connection is convenient and fast, the reliability and durability of the locking parts still need to be further verified, and in some cases it may not meet the requirements of high seismic performance.

[0005] Therefore, in view of the shortcomings of the prior art, the present invention proposes a fast-assembly prefabricated staircase structure, which aims to solve the problems of poor connection stress, poor seismic performance, high production and manufacturing costs, great manufacturing difficulty and low construction efficiency of traditional prefabricated staircase structures. By optimizing the connection method between the staircase sections and the supporting parts, the structural strength and safety are improved, the manufacturing difficulty and cost are reduced, and the construction efficiency is improved, thereby promoting the further development of the field of prefabricated buildings. Summary of the invention

[0006] The present invention application provides a rapidly assembled prefabricated building and its staircase structure to solve the problems of poor connection stress, poor seismic performance, high production cost, great manufacturing difficulty and low construction efficiency of traditional prefabricated staircase structures.

[0007] In order to achieve the above invention objectives, this application adopts the following technical solutions:

[0008] A prefabricated staircase structure includes a staircase component and a support system. The staircase component has at least one staircase, and the support system has a first locking portion adapted to be assembled with the lower end of the staircase and a second locking portion adapted to be assembled with the upper end of the staircase. The first locking portion includes at least one first locking space with an acute angle and a first locking unit suitable for keeping the lower end of the staircase in the first locking space; the second locking portion includes at least one second locking space with an obtuse angle and a second locking unit suitable for keeping the upper end of the staircase in the second locking space.

[0009] The above-mentioned combined design gives full play to the advantages of high tensile strength of the first locking unit and the second locking unit, effectively avoids the problem of poor shear resistance, and significantly improves the structural strength and safety of the stairs.

[0010] Furthermore, the stair segment component may include a first stair segment, and the support system includes an A support and a B support. The lower end of the first stair segment is locked and assembled with a first locking portion configured on the A support, and the upper end of the first stair segment is locked and assembled with a second locking portion configured on the B support. This design makes the connection between the stair segment and the support system more stable and reliable.

[0011] In addition, the stair segment component may further include a second stair segment, and the lower end of the second stair segment is locked and assembled with the first locking portion configured on the B support member. This modular design facilitates the prefabrication and installation of the staircase and improves the construction efficiency.

[0012] In particular, the B-support member configured with the first locking portion and the second locking portion can be constructed as a staircase platform, which can not only save material costs but also improve the overall stability and safety of the stairs.

[0013] The design of the first locking space and the second locking space also fully considers the installation requirements of the stair segment. The first locking space includes a first reference locking surface and a first inclined locking surface inclined upward relative to the first reference locking surface, and the lower end of the stair segment is at least partially embedded in the first locking space. The second locking space includes a second reference locking surface and a second inclined locking surface inclined downward relative to the second reference locking surface, and the upper end of the stair segment is at least partially embedded in the second locking space. This design enables the stair segment to be more firmly fixed on the support system during installation.

[0014] In order to improve the structural strength of the staircase, at least one end of the staircase can be provided with a positive corner reinforcement, and the first locking space and / or the second locking space can be provided with a negative corner reinforcement, and the positive corner reinforcement and the negative corner reinforcement are adapted to each other. This design can effectively enhance the structural strength of the end of the staircase and increase its earthquake resistance.

[0015] The opening of the first locking space is inclined upward, and the opening of the second locking space is inclined downward. This design facilitates the installation and disassembly of the stair section and improves the construction efficiency.

[0016] Further, the first locking unit is configured as a male connector or a female connector, and the second locking unit is configured as a male connector or a female connector.

[0017] Wherein, the male connector is arranged on one of the ladder component and the support system, and the female connector is arranged on the other of the ladder component and the support system;

[0018] The male joint has a locking rod that can be elastically retracted, and the female joint is configured to limit the separation of the two when the locking rod is inserted into the female joint. This design makes the connection between the staircase and the support system more firm and reliable, effectively improving the overall stability of the stairs.

[0019] The present application also provides a fast-assembly prefabricated building, which is assembled using the above-mentioned prefabricated staircase structure. This prefabricated building has the advantages of high structural strength, good earthquake resistance, low production cost, low manufacturing difficulty and high construction efficiency, and is very suitable for the needs of modern buildings.

[0020] The technical effects of the present invention are mainly reflected in the following aspects:

[0021] First of all, the design of the prefabricated staircase structure significantly simplifies the construction process. By prefabricating the stair components and support system, only simple assembly work is required on site, without the need for complex on-site processing and pouring. This not only shortens the construction period, but also reduces noise and dust pollution during the construction process. The standardized production of prefabricated components also ensures the quality consistency of the stair components and improves the stability and durability of the overall structure.

[0022] Secondly, the unique locking part design is another highlight of the staircase structure. The first locking part and the second locking part adopt the locking space design of acute angle and obtuse angle respectively, and cooperate with the elastic retractable locking rod and the female joint that limits separation to ensure the tight connection between the staircase section and the support system. This design not only improves the stability of the connection, but also maintains the stability of the structure in long-term use, effectively preventing safety hazards caused by loosening or falling off. At the same time, the synergistic effect of the external corner reinforcement and the internal corner reinforcement further enhances the overall strength and stability of the stairs.

[0023] It is also worth mentioning that the design of the tilted opening of the locking space is mainly to facilitate the assembly and disassembly process between the stair components and the support system. This design makes the assembly process smoother, reduces the difficulty and complexity of installation, and also facilitates disassembly when necessary, improving the maintainability of the structure.

[0024] In practical applications, the assembled staircase structure has a wide range of applicability. Whether it is a residence, commercial building or public facility, appropriate staircase components and support systems can be selected for assembly according to needs. Especially in emergency situations, such as fire or earthquake, the staircase structure can maintain structural stability and provide a safe passage for personnel evacuation.

[0025] In summary, the prefabricated staircase structure proposed by the present invention performs well in terms of assembly convenience, structural stability, practicality and safety. Its unique design and innovative concept not only improve construction efficiency and quality, but also provide users with a safer and more comfortable use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the stair step component in the first embodiment.

[0027] Figure 2 yes Figure 1 Section view of the mid-flight components.

[0028] Figure 2a and 2b They are Figure 2 Magnified views of points A and B.

[0029] Figure 3 It is a structural schematic diagram of the support system in Example 1.

[0030] Figure 3a and 3b They are Figure 3 Cross-sectional view at EE and FF.

[0031] Figure 4 It is a schematic diagram of the assembly state of a stair segment component and a support system according to an embodiment.

[0032] Figure 4a and 4b They are Figure 4 Schematic diagram of the assembly structure at C and D in the middle.

[0033] Figure 4c and 4d They are Figure 4a and 4b Schematic diagram of another embodiment of the assembly structure.

[0034] Figure 5 It is a schematic diagram of the structure of the first locking unit and the second locking unit in the first embodiment.

[0035] Figure 6 This is a schematic diagram of an assembly state in the second embodiment.

[0036] Figure 7 This is another schematic diagram of an assembly state in the second embodiment.

[0037] Description of reference numerals:

[0038] 100, staircase component; 100A, first staircase; 100B, second staircase; 100C, third staircase;

[0039] 200, support system; 200A, A support member; 200B, B support member; 200C, C support member;

[0040] 210, first locking portion; 211, first locking space; 211a, first reference locking surface; 211b, first inclined locking surface; 212, first locking unit;

[0041] 220, second locking portion; 221, second locking space; 221a, second reference locking surface; 221b, second inclined locking surface; 222, second locking unit;

[0042] 31, male connector; 31a, lower male connector; 31b, upper male connector; 310, locking rod; 311, male connector shell; 312, first elastic member;

[0043] 32. Female connector; 320. Female connector shell; 321. Conical locking clip; 322. External conical surface; 323. Power spring; 324. Internal conical surface;

[0044] 41. First internal corner reinforcement member; 42. First external corner reinforcement member; 43. Second internal corner reinforcement member; 44. Second external corner reinforcement member. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0046] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0047] Embodiment 1:

[0048] As a connecting passage connecting the vertical space of a building, the staircase occupies a very important position in the building. The staircase is usually composed of a staircase component 100 and a support system 200 for supporting the staircase component 100. The staircase component 100 includes at least one staircase segment. In the assembled state, the lower end of the staircase segment is connected to the floor surface or platform surface structure of the first floor, and the upper end of the staircase segment is connected to the floor of the upper level or the staircase platform located in the middle of the floor, forming a staircase passage connected up and down. In practice, the corresponding combination of the staircase component 100 and the support system 200 can be designed according to the number of floors or staircase structure of the designed building, thereby completing the staircase construction of the entire building floor.

[0049] refer to Figure 1-Figure 5 As shown, an assembled staircase structure in this embodiment includes a staircase component 100 and a support system 200. The staircase component 100 has at least one staircase segment. Specifically, the staircase component 100 in this embodiment includes a first staircase segment 100A. Figure 4As shown. The support system 200 has a first locking portion 210 adapted to be assembled with the lower end of the stair section and a second locking portion 220 adapted to be assembled with the upper end of the stair section. The first locking portion 210 includes at least one first locking space 211 with an acute angle, and a first locking unit 212 suitable for keeping the lower end of the stair section in the first locking space 211. The first locking unit 212 and the first locking space 211 cooperate to fix the lower end of the first stair section 100A in the horizontal direction and the vertical direction to make it stably connected. The second locking portion 220 includes at least one second locking space 221 with an obtuse angle, and a second locking unit 222 suitable for keeping the upper end of the stair section in the second locking space 221. The second locking unit 222 and the second locking space 221 cooperate to fix the upper end of the first stair section 100A in the horizontal direction and the vertical direction.

[0050] The lower end of the stair component 100 can be connected to the ground, stair landing or floor, and the upper end of the stair component 100 can be connected to the stair landing or floor. In this example, the lower end of the stair component 100 is connected to the A support member 200A, and the upper end is connected to the B support member 200B. The A support member 200A and the B support member 200B can be part of or the whole of the ground, stair landing or floor. Specifically, as Figure 4 As shown, the lower end of the first stair section 100A is locked and assembled with the first locking portion 210 of the A support member 200A, and the upper end of the first stair section 100A is locked and assembled with the second locking portion 220 of the B support member 200B.

[0051] The design of the first locking space 211 and the second locking space 221 needs to fully consider the need for stable and convenient installation of the staircase. Specifically, the first locking space 211 includes a first reference locking surface 211a and a first inclined locking surface 211b that is inclined upwards compared to the first reference locking surface 211a. The lower end of the staircase is at least partially embedded in the first locking space 211, which is partially embedded in this embodiment, and can also be fully embedded in other embodiments. The angle formed between the first reference locking surface 211a and the first inclined locking surface 211b is an acute angle, that is, the angle between the two is less than 90°. The second locking space 221 includes a second reference locking surface 221a and a second inclined locking surface 221b that is inclined downwards compared to the second reference locking surface 221a. The upper end of the staircase is at least partially embedded in the second locking space 221, which is partially embedded in this embodiment, and can also be fully embedded in other embodiments. The angle formed between the second reference locking surface 221a and the second inclined locking surface 221b is an obtuse angle, that is, the angle between the two is greater than 90°. This design enables the ladder segment component 100 to be more firmly fixed on the support system 200 during the installation process.

[0052] like Figure 3a As shown, in the first locking portion 210, the first reference locking surface 211a and the first inclined locking surface 211b form a first locking space 211 in the shape of an "upward slanting L", and this "upward slanting L" shaped locking space is exactly fitted with the lower end of the stair section. During installation, first assemble the lower end of the first stair section 100A with the first locking portion 210. This "upward slanting L-shaped" structure has an installation positioning function, and the first stair section 100A can always be firmly embedded therein under its own gravity, and will not be displaced after assembly. When subjected to external vibration or impact, the first stair section 100A can reset itself along the L-shaped inclined surface, thereby enhancing the stability of the structure.

[0053] like Figure 3b As shown, the second reference locking surface 221a and the second inclined locking surface 221b form a "downward sloping L" shaped second locking space 221, and this "downward sloping L" shaped locking space is just overlapped with the upper end of the first stair section 100A. After the upper end of the first stair section 100A is installed, the first stair section 100A is inclined, and the downward pressure of the upper end of the first stair section 100A is converted into a horizontal thrust, which is then offset by more structures such as beams, walls, etc. Under the pull of the first locking unit 212 and the second locking unit 222, the horizontal thrust fully utilizes its high tensile strength, well avoids the problem of poor shear resistance, and improves the structural strength and safety of the stairs.

[0054] Furthermore, if Figure 3a As shown, the opening of the first locking space 211 is inclined upward. Figure 3b As shown, the opening of the second locking space 221 is tilted downward. The design of the tilted opening of the locking space is mainly to facilitate the assembly and disassembly process between the ladder component 100 and the support system 200. This design makes the assembly process smoother, reduces the difficulty and complexity of installation, and also facilitates disassembly when necessary, improving the maintainability of the structure.

[0055] As an improvement, Figure 4c and 4d As shown, in order to increase the connection strength between the stair segment component 100 and the support system 200 and improve its anti-seismic performance, a first internal angle reinforcement 41 is embedded in the intersection area of ​​the first reference locking surface 211a and the first inclined locking surface 211b, and the lower end of the first stair segment 100A has a first external angle reinforcement 42 that is mutually compatible with the first internal angle reinforcement 41. And, further preferably, a second internal angle reinforcement 43 is embedded in the intersection area of ​​the second reference locking surface 221a and the second inclined locking surface 221b, and the upper end of the first stair segment 100A has a second external angle reinforcement 44 that is mutually compatible with the second internal angle reinforcement 43.

[0056] In the present technical solution: a first internal corner reinforcement 41 is added in the "upward sloping L" shaped intersection area formed by the first locking space 211, and a first external corner reinforcement 42 adapted thereto is added at the corner of the lower end of the ladder section component 100. The first external corner reinforcement 42 can prevent the lower end of the ladder section component 100 from being bumped during transportation and can improve assembly accuracy and structural strength; the first internal corner reinforcement 41 is preferably configured as an acute-angled steel plate that can fit with the first locking space 211, or it can be formed by splicing two steel plates.

[0057] Similarly, a second internal angle reinforcement 43 is arranged in the intersection area between the second reference locking surface 221a and the second inclined locking surface 221b, and a second external angle reinforcement 44 is arranged at the corner of the upper end of the ladder component 100. At the same time, the second internal angle reinforcement 43 is preferably configured as an obtuse steel plate that can fit the two second locking spaces 221, or it can be formed by splicing two steel plates.

[0058] Preferably, the internal corner reinforcement and the external corner reinforcement are fixedly connected to the locking space in an embedded manner. In another alternative, the internal corner reinforcement and the external corner reinforcement can also be fixedly connected to the locking space by fasteners, welding or other methods. In this embodiment, both the internal corner reinforcement and the external corner reinforcement are provided, and in other embodiments, only one of them can be provided.

[0059] In order to further improve the bonding strength between the ladder segment component 100 and the support system 200, the present embodiment further optimizes the end angle of the ladder segment component 100 and the angle of the locking space. For example, when the lower end of the ladder segment component 100 is prefabricated, the corner of the lower end can be chamfered or rounded, and at the same time, the top of the angle of the first locking space 211, that is, the intersection area of ​​the first reference locking surface 211a and the first inclined locking surface 211b is configured to be chamfered or rounded to fit and assemble with the lower end of the ladder segment component 100.

[0060] When chamfering the corner of the lower end of the ladder component 100, the direction of the chamfer can be horizontal or inclined at a certain angle. In order to enable it to be well assembled with the support system 200, the inclination angle of the chamfer configured in the intersection area of ​​the first reference locking surface 211a and the first inclined locking surface 211b needs to be consistent therewith.

[0061] Configuring chamfers or rounded corners can not only improve assembly accuracy and reduce prefabrication difficulty, but also prevent the lower end of the ladder component 100 from being bumped and damaged during transportation.

[0062] like Figure 4-5 As shown, the specific implementation structure of the first locking unit 212 and the second locking unit 222 provided in this embodiment is as follows:

[0063] The first locking unit 212 is configured as a male joint 31 or a female joint 32, and the lower end of the first stair section 100A has a female joint 32 or a male joint 31 adapted to the first locking unit 212. The second locking unit 222 is configured as a male joint 31 or a female joint 32, and the upper end of the first stair section 100A has a female joint 32 or a male joint 31 adapted to the second locking unit 222. The male joint 31 has a locking rod 310, and the female joint 32 is configured to limit the separation of the two when the locking rod 310 is embedded in the female joint 32. Specifically, as Figure 2 As shown, the lower end of the first stair section 100A is configured with a lower male joint 31a, and the upper end thereof is configured with an upper male joint 31b.

[0064] As a further preferred embodiment, the male connector 31 includes a male shell 311, a locking rod 310 telescopically embedded in the male shell 311, and the locking rod 310 is provided with external inverted teeth; and a first elastic member 312 accommodated in the male shell 311, the first elastic member 312 presses against the rear enlarged end of the locking rod 310 and applies force to it, so that the other end of the locking rod 310 can extend along the extension direction of the male shell 311.

[0065] Alternatively, based on the above solution, when the prefabricated building components are installed in sequence, in order to save costs, the locking rod 310 can omit the telescopic function, reduce the length of the male shell 311 to save material costs, and the locking rod 310 extends from the male shell 311 to meet the connection requirements.

[0066] The female connector 32 comprises a female housing 320 , a conical locking clip 321 received in the female housing 320 , the conical locking clip 321 being provided with internal inverted teeth, and a power spring 323 providing a continuous forward thrust to the conical locking clip 321 .

[0067] Among them, the inner side of the female shell 320 is provided with an inner conical surface 324, and the outer side of the conical locking clip 321 is provided with an outer conical surface 322. The inner conical surface 324 and the outer conical surface 322 squeeze each other, so that the inner inverted teeth of the conical locking clip 321 can tightly hold the outer inverted teeth corresponding to the locking rod 310, and the locking rod 310 can be easily inserted and cannot be pulled out. The greater the pulling force, the tighter the hold.

[0068] The male connector 31 is alternatively embedded in one of the first stair section 100A and the support system 200, and the female connector 32 is embedded in the other.

[0069] In this embodiment: the first elastic member 312 can be a spring, which is always in a compressed state, and one end of the spring presses against the enlarged end of the rear end of the locking rod 310 to ensure that the locking rod 310 always extends out of the male connection shell 311. When assembling the first stair section 100A, the locking rod 310 is compressed into the male connection shell 311, and then the first stair section 100A is installed into the first locking portion 210. After installation, the locking rod 310 is pushed out by the first elastic member 312 and inserted into the female connector 32 to achieve mechanical connection.

[0070] In order to achieve the maximum tensile strength of the first locking unit 212 and the second locking unit 222 to bear the stress inside the structure, the principle of one-way locking between the male connector 31 and the female connector 32 is as follows:

[0071] External teeth are provided on the outer surface of the extended end of the locking rod 310, and internal teeth are provided on the inner wall of the conical locking clip 321 to increase the friction when the two are in contact, thereby improving the tensile performance and structural strength of the locking unit.

[0072] When the male connector 31 and the female connector 32 are docked, one end of the locking rod 310 is inserted into the female housing 320 and squeezes the conical locking clip 321. After the conical locking clip 321 is subjected to force, it squeezes the power spring 323 downward (or backward) and stretches the conical locking clip 321 outward (the conical locking clip 321 is annular. In order to improve the locking performance of the conical locking clip 321, three clips that are interlocked and annular can be preferably used); when the connecting end of the locking rod 310 is fully inserted into the conical locking clip 321, the outer teeth of the locking rod 310 and the inner teeth of the conical locking clip 321 form an engagement. When subjected to tension, the outer conical surface 322 of the conical locking clip 321 and the inner conical surface 324 on the inner side of the female housing 320 are inclined, forming an extrusion locking effect that becomes tighter and tighter, thereby locking the locking rod 310.

[0073] The first locking unit 212 and the second locking unit 222 are mechanical connection structures, and the preferred implementation thereof can refer to the authorized announcement of the patent "A tooth-extrusion non-return steel bar connector" with announcement number CN216305149U.

[0074] During the assembly process, the lower end of the first staircase section 100A is first assembled with the first locking portion 210 of the A support member 200A, and the elastically retractable male connector 31 is inserted into the corresponding female connector 32. The female connector 32 can lock the male connector, thereby limiting the separation of the first staircase section 100A from the A support member 200A in the vertical direction. Since the opening of the first locking space 211 is tilted upward, this design makes the assembly process smoother. When the locking rod 310 is fully inserted into the female connector 32, its outer teeth are engaged with the inner teeth of the conical locking clip 321, achieving a stable connection.

[0075] Next, the upper end of the first staircase 100A is assembled with the second locking portion 220 of the B support 200B, and similar insertion and locking operations are performed. Since the opening of the second locking space 221 is inclined downward, this design also facilitates the assembly process.

[0076] Through the above assembly process, the first staircase section 100A is firmly fixed between the A support member 200A and the B support member 200B, forming a staircase passage connecting up and down. The assembled staircase structure not only has efficient assembly and disassembly performance, but also has excellent structural strength and earthquake resistance.

[0077] Embodiment 2:

[0078] See also Figure 6 and Figure 7 As shown, the connection structure of the stair segment component 100 and the support system 200 used in this embodiment is basically the same, except that this embodiment focuses on the assembly structure and method of a multi-layer staircase structure, as follows:

[0079] First, if Figure 7 As shown, the staircase component 100 has three staircases, namely the first staircase 100A, the second staircase 100B and the third staircase 100C. The support system 200 includes an A support member 200A, a B support member 200B and a C support member 200C. The first staircase 100A is set between the A support member 200A and the B support member 200B, the second staircase 100B is set between the B support member 200B and the C support member 200C, and the third staircase 100C is set between the C support member 200C and another upper support member (not marked in the figure).

[0080] refer to Figure 6 and Figure 7 As shown, the A support member 200A is arranged at the bottom and can be fixed to the bottom plate in the subsequent process. The A support member 200A is at least provided with a first locking portion 210, which is used to support and lock the lower end of the first stair section 100A. The B support member 200B is arranged in the middle of the floor to form a stair landing. The B support member 200B is also provided with a first locking portion 210 and a second locking portion 220. The first locking portion 210 and the second locking portion 220 are arranged side by side, and the second locking portion 220 is located on the outside of the stair landing to support and lock the upper end of the first stair section 100A. The first locking portion 210 is located on the inside of the stair landing to support and lock the lower end of the second stair section 100B. It should be noted that the specific structure of the first locking portion 210 and the second locking portion 220 here is the same as that in the first embodiment.

[0081] Furthermore, the stair segment component 100 also includes a third stair segment 100C, and the support system 200 also includes a C support member 200C, wherein the C support member 200C forms another stair platform, and the structures of the C support member 200C and the B support member 200B are basically the same, and they are also configured with a first locking portion 210 and a second locking portion 220, the first locking portion 210 and the second locking portion 220 are arranged side by side, and the second locking portion 220 is located on the inner side of the stair platform for supporting and locking the upper end of the second stair segment 100B, and the first locking portion 210 is located on the outer side of the stair platform for supporting and locking the lower end of the third stair segment 100C.

[0082] Furthermore, in order to simplify the structural design of the stair segment component 100 and the support system 200, reduce costs, and facilitate on-site assembly, all stair segment structures in this embodiment are the same, and the structures of all support components are also the same. The stair segment components 100 and the support system 200 are both modularly designed, thereby greatly reducing structural costs and design difficulty, and significantly improving on-site assembly efficiency.

[0083] The assembly method of the above multi-layer staircase structure is as follows:

[0084] The first step: assemble the stair platform; use the lifting equipment to fix the A support member 200A, the B support member 200B, and the C support member 200C to the wall or the vertical wall in sequence.

[0085] Step 2: Assemble the first staircase 100A; assemble the lower end of the first staircase 100A on the first locking portion 210 in the A support 200A, so that the lower end of the first staircase 100A is fixed to the first locking portion 210. The upper end of the first staircase 100A is assembled on the second locking portion 220 in the B support 200B, so that it is fixed to the second locking portion 220 of the B support 200B.

[0086] Step 3: Assemble the second staircase 100B. Assemble the lower end of the second staircase 100B on the first locking portion 210 inside the B support 200B to fix it to the first locking portion 210 of the B support 200B. Assemble the upper end of the second staircase 100B on the second locking portion 220 in the C support 200C to fix it to the second locking portion 220 of the C support 200C.

[0087] Step 4: Assemble the third staircase section 100C. Assemble the lower end of the third staircase section 100C on the first locking portion 210 in the C support member 200C so that it is fixed with the first locking portion 210 of the C support member 200C; finally, the upper end of the third staircase section 100C is assembled on the second locking portion 220 of another support member (staircase platform 4) (staircase platform 4 is assembled on the vertical wall or wall in advance like the B support member 200B, and it also has the first locking portion 210 and the second locking portion 220, and the staircase platform 4 is not shown in the figure), and finally the staircase structure is built.

[0088] It is worth noting that, taking the B support member 200B as an example, it is simultaneously equipped with a first staircase section 100A extending downward and a second staircase section 100B extending upward. The second locking portion 220 connected to the upper end of the first staircase section 100A and the first locking portion 210 connected to the lower end of the second staircase section 100B can be arranged on the same side of the horizontal plane of the staircase landing, or on different sides. The staircase landings accumulated upward in this way and the N support members therein can adopt this arrangement.

[0089] Alternatively, the hoisting equipment first hoists the A support member 200A and the B support member 200B into place, and then hoists the first stair section 100A; after the first stair section 100A is installed, hoist the C support member 200C, and then hoist the second stair section 100B, and assemble the stairs of the entire building in this order.

[0090] For the staircase section that is at the uppermost or lowermost position in the entire staircase structure, the support member assembled with the staircase section will also be at the uppermost or lowermost position in the entire staircase structure.

[0091] First: If Figure 6 As shown, when the first staircase 100A is at the lowest end of the staircase structure, the A support 200A assembled with the lower end of the staircase should also be at the lowest end of the building structure. At this time, the support can be provided with only the first locking portion 210, or the second locking portion 220. However, when the second locking portion 220 is also provided on the support, the second locking portion 220 in the support is vacant.

[0092] Second, when the staircase is at the top of the staircase structure, the B support 200B assembled with the upper end of the staircase should also be at the top of the building structure. At this time, the support can only be provided with the second locking portion 220, or the first locking portion 210 can be provided at the same time. However, when the first locking portion 210 is also provided on the support, the first locking portion 210 in the support is vacant.

[0093] According to the above two assembly situations, after the staircase structure is assembled, in order to ensure the flatness and beauty of the staircase platform, it is necessary to fill the empty first locking part 210 and the second locking part 220 in the staircase platform with materials.

[0094] Usually, in order to speed up the actual construction process, production personnel will prefabricate the stair platforms at the top and bottom of the stair structure separately, so that there is only a single locking part in the stair platform, thereby avoiding the problem of redundant locking parts being vacant.

[0095] And because the direction of the stairs in the building structure is often determined according to the internal design of the building, for a single staircase platform, the relative position of the first locking portion 210 and the second locking portion 220 must be determined according to actual construction requirements during prefabrication. In this application, the positions of the two are not limited to the scenario described in this embodiment, and there is no qualitative requirement for whether the two are arranged side by side, staggered, or at a certain angle, which is also considered to fall within the protection scope of this application.

[0096] In actual manufacturing and construction, the first locking unit 212 and the second locking unit 222 can effectively prevent the stair segment component 100 from being separated from or displaced from the support system 200 after assembly, and can also form internal connection stress after assembly, thereby increasing the safety of the building. The first locking unit 212 and the second locking unit 222 can be mechanical connectors or other connection components with locking functions pre-buried at the ends of the stair segment component 100. There is a gap at the assembly connection of the stair segment component 100 and the support system 200. In order to ensure the connection strength and improve the anti-corrosion performance of the metal locking unit, after the staircase is installed, an adhesive is filled into the connection gap or a sealing treatment such as cement grouting is performed.

[0097] The present application also adopts the following technical solution: a rapidly assembled prefabricated building, which is assembled using the above-mentioned prefabricated staircase structure.

[0098] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An assembled staircase structure, characterized in that: include: A staircase component having at least one staircase flight; as well as A support system having a first locking portion adapted to be assembled with a lower end of the staircase and a second locking portion adapted to be assembled with an upper end of the staircase; Wherein, the first locking portion comprises at least one first locking space with an acute angle, and a first locking unit adapted to keep the lower end of the staircase section in the first locking space; The second locking portion includes at least one second locking space with an obtuse angle, and a second locking unit suitable for keeping the upper end of the staircase flight in the second locking space.

2. The assembled staircase structure according to claim 1, characterized in that: The stair segment component includes a first stair segment, and the support system includes an A support member and a B support member; Among them, the lower end of the first stair section is locked and assembled with a first locking part configured on the A support member, and the upper end of the first stair section is locked and assembled with a second locking part configured on the B support member.

3. The assembled staircase structure according to claim 2, characterized in that: The stair segment component further includes a second stair segment, and a lower end portion of the second stair segment is locked and assembled with a first locking portion configured on the B support member.

4. The assembled staircase structure according to claim 3, characterized in that: The B-support provided with the first locking portion and the second locking portion is configured as a stair landing.

5. The assembled staircase structure according to claim 1, characterized in that: The first locking space includes a first reference locking surface and a first inclined locking surface inclined upward relative to the first reference locking surface, and the lower end portion of the stair section is at least partially embedded in the first locking space.

6. The assembled staircase structure according to claim 1 or 5, characterized in that: The second locking space includes a second reference locking surface and a second inclined locking surface inclined downward relative to the second reference locking surface, and the upper end of the stair section is at least partially embedded in the second locking space.

7. The assembled staircase structure according to claim 1, characterized in that: At least one end of the stair section is provided with a male corner reinforcement, and the first locking space and / or the second locking space is provided with a female corner reinforcement, and the male corner reinforcement and the female corner reinforcement are matched.

8. The assembled staircase structure according to claim 1, characterized in that: The opening of the first locking space is inclined upward, and the opening of the second locking space is inclined downward.

9. The assembled staircase structure according to claim 1, characterized in that: The first locking unit is configured as a male connector or a female connector, and the second locking unit is configured as a male connector or a female connector; Wherein, the male connector is arranged on one of the ladder component and the support system, and the female connector is arranged on the other of the ladder component and the support system; The male connector has an elastically retractable locking rod, and the female connector is configured to limit the separation of the two when the locking rod is inserted into the female connector.

10. A rapidly assembled prefabricated building, characterized in that: The prefabricated building has the prefabricated staircase structure described in any one of claims 1-9.

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