Fabricated stair

Abstract

The utility model belongs to the technical field of assembly type structures, and discloses an assembly type stair which comprises a bearing assembly, a kicking and treading assembly and a handrail assembly. The bearing assembly comprises two first connecting pieces and two inclined supporting pieces, the two first connecting pieces are arranged in a low-high mode, the two inclined supporting pieces are parallel to each other and arranged between the two first connecting pieces in the vertical direction in a spaced mode, and the two ends of each inclined supporting piece are detachably connected to the two first connecting pieces correspondingly. The kicking and treading assembly is arranged between the two bearing assemblies, the two ends, in the horizontal direction, of the pedals are each provided with a first end and a second end, for one bearing assembly, the first end is detachably connected to one inclined supporting piece, the second end is detachably connected to the other inclined supporting piece, and the multiple pedals are arranged at intervals in the extending direction of the inclined supporting pieces; the armrest assembly is detachably connected to the bearing assembly. Through the arrangement, the assembly type stair can be conveniently disassembled and assembled, can be repeatedly used, and is safer and more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated structures, in particular to a prefabricated staircase. Background Art

[0002] At present, stairs generally directly weld components such as stair beams and stair slabs to form the overall structure of the stairs. Since such stair components need to be welded in the factory and then transported to the construction site for installation, and the stair components are huge in volume and heavy in mass, it is not conducive to handling and hoisting. Therefore, a large amount of manpower is required, which is time-consuming and laborious, and the operation efficiency is too low, and there are safety hazards during the installation process. Moreover, if welding operations are carried out on the above components at the site, due to the large amount of welding work and inaccurate positioning of the components, it is difficult to ensure the welding process. In addition, when the welded stairs are disassembled, they can only be disassembled in a destructive manner, and the materials after disassembly cannot be used continuously due to damage, extrusion deformation, etc., and the recycling rate is relatively low. They can only be treated as construction waste, wasting resources and having a high use cost. Content of the Utility Model

[0003] The purpose of the utility model is to provide a prefabricated staircase, which can be easily disassembled and assembled, can be reused, and is safer and more convenient to use.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A prefabricated staircase, which comprises:

[0006] Two load-bearing components, which are arranged parallel to each other and at intervals in the horizontal direction. The load-bearing component includes two first connecting pieces and two diagonal braces. The two first connecting pieces are configured to be arranged, one at a lower position and the other at a higher position. The two diagonal braces are parallel to each other and arranged at intervals in the vertical direction between the two first connecting pieces. The two ends of the diagonal brace are respectively detachably connected to the two first connecting pieces;

[0007] A tread and kickboard assembly, which is arranged between the two load-bearing components, includes a plurality of tread plates extending in the horizontal direction and a plurality of kick plates extending in the vertical direction. Both ends of the tread plate in the horizontal direction are provided with a first end and a second end. For one of the load-bearing components, the first end is detachably connected to one of the diagonal braces, and the second end is detachably connected to the other diagonal brace. The plurality of tread plates are arranged at intervals along the extension direction of the diagonal brace, and each adjacent two tread plates are connected by one kick plate;

[0008] Two handrail assemblies, corresponding to the two load-bearing components one by one, and the handrail assembly is detachably connected to the load-bearing component.

[0009] Optionally, the carrying component further includes two carrying frames, the two carrying frames are respectively and correspondingly connected to the two first connectors, a clamping groove is provided at one end of the carrying frame, and a protrusion clamped in the clamping groove is provided on the first connector.

[0010] Optionally, the carrying component further includes a penetrating member and a nut member. When the first connector is clamped to the carrying frame, the penetrating member penetrates through the first connector and abuts against the port of the clamping groove, and one end of the penetrating member penetrates out from the bottom of the clamping groove and is screwed to the nut member.

[0011] Optionally, the carrying frame includes two U-shaped plates arranged oppositely and facing each other. Connecting concave portions and connecting convex portions are provided at both ends of the U-shaped plate. By clamping the connecting convex portion to the connecting concave portion, the two U-shaped plates can be buckled to form a frame structure.

[0012] Optionally, the first connector includes two first connecting plates that can be buckled and detachably connected to each other. A first accommodating groove for accommodating the diagonal brace is provided on the first connecting plate, and the opposite ends of the diagonal brace can be clamped between the two first connecting plates.

[0013] Optionally, the carrying component further includes a plurality of second connectors. The two ends of the second connector are respectively detachably connected to two adjacent diagonal braces, and the plurality of second connectors are arranged at intervals along the extending direction of the diagonal brace.

[0014] Optionally, the second connector includes two second connecting plates that can be buckled and detachably connected to each other. Second accommodating grooves are respectively provided at both ends of the second connecting plate. When the two second connecting plates are buckled together, two adjacent diagonal braces in the carrying component can be respectively clamped in the two second accommodating grooves.

[0015] Optionally, the armrest component includes a third connector, an armrest rod, and a plurality of protection rods. The armrest rod, the protection rod, the third connector, and the diagonal brace are arranged in sequence from top to bottom. The armrest rod and the diagonal brace are parallel and spaced from each other. One end of the third connector is detachably connected to the adjacent diagonal brace, and the other end is detachably connected to the armrest rod through the protection rod. The plurality of protection rods are arranged at intervals along the extending direction of the diagonal brace between the armrest rod and the third connector.

[0016] Optionally, the third connector includes a plurality of connecting rods, a plurality of third connecting plates, and a plurality of fourth connecting plates. Two third connecting plates that can be buckled and detachably connected to each other are correspondingly provided at one end of the connecting rod for connecting the protection rod, and two fourth connecting plates that can be buckled and detachably connected to each other are correspondingly provided at the other end for connecting the diagonal brace.

[0017] Optionally, the footrest is Z-shaped. Along the vertical direction, the two ends of the footrest are respectively detachably connected to two adjacent kick plates. The kick plate includes two kick panels that are parallel to each other and spaced apart. The footrest is clamped between the two kick panels.

[0018] Advantages of the present utility model:

[0019] The present utility model provides a prefabricated staircase, which includes a load-bearing component, a tread component, and a handrail component. There are two load-bearing components, and the two load-bearing components are parallel to each other and spaced apart in the horizontal direction to serve as the basic framework of the prefabricated staircase. The load-bearing component includes two first connectors and two diagonal braces. The two first connectors are configured to be arranged at different heights to meet the rationality of the staircase structure layout. The two diagonal braces are parallel to each other and spaced apart in the vertical direction between the two first connectors, thereby forming a stable support structure. The two ends of the diagonal brace are respectively detachably connected to the two first connectors to facilitate assembly and disassembly. The tread component is arranged between the two load-bearing components and includes a plurality of footrests extending in the horizontal direction and a plurality of kick plates extending in the vertical direction to meet the normal use of users when going up and down the stairs. Both ends of the footrest in the horizontal direction are provided with a first end and a second end. For one load-bearing component, the first end is detachably connected to one diagonal brace, and the second end is detachably connected to the other diagonal brace, so that each component can be disassembled and assembled, which is convenient for operators to operate and can be reused. The operator can quickly complete the assembly without complex welding operations, improving the construction efficiency. The plurality of footrests are spaced apart along the extension direction of the diagonal brace, and each adjacent two footrests are connected by a kick plate to ensure the safety of using the prefabricated staircase. There are two handrail components, and the two handrail components correspond to the two load-bearing components one by one. The handrail component is detachably connected to the load-bearing component, further improving the installation and disassembly efficiency and ensuring the use safety. Through the above settings, the prefabricated staircase of the present application can be easily disassembled and assembled, reused, and is safer and more convenient to use. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the prefabricated staircase provided by the embodiment of the present utility model;

[0021] Figure 2 is Figure 1 the partial enlarged view of A in

[0022] Figure 3 is the partial structural schematic diagram of the prefabricated staircase provided by the embodiment of the present utility model;

[0023] Figure 4 is Figure 3Partial enlarged view at B in [Chinese description];

[0024] Figure 5 It is a partial structural schematic diagram of the bearing assembly provided by an embodiment of the present utility model;

[0025] Figure 6 It is an exploded view of the first connecting member provided by an embodiment of the present utility model;

[0026] Figure 7 It is a connection schematic diagram of the second connecting member provided by an embodiment of the present utility model;

[0027] Figure 8 It is an exploded view of the second connecting member provided by an embodiment of the present utility model;

[0028] Figure 9 It is an exploded view of the third connecting member provided by an embodiment of the present utility model;

[0029] Figure 10 It is a connection schematic diagram of the intermediate rod and the auxiliary rod provided by an embodiment of the present utility model;

[0030] Figure 11 It is Figure 10 exploded schematic diagram of;

[0031] Figure 12 It is a connection schematic diagram of the armrest rod and the protection rod provided by an embodiment of the present utility model;

[0032] Figure 13 It is Figure 12 exploded schematic diagram of.

[0033] In the figure:

[0034] 1. Bearing assembly; 11. First connecting member; 111. Projection; 112. First connecting plate; 1121. First accommodating groove; 12. Diagonal brace; 13. Bearing frame; 131. Card slot; 132. U-shaped plate; 1321. Connecting recess; 1322. Connecting protrusion; 14. Passing member; 15. Nut member; 16. Second connecting member; 161. Second connecting plate; 1611. Second accommodating groove; 2. Tapping assembly; 21. Footrest plate; 22. Kicking plate; 221. Kicking panel; 3. Armrest assembly; 31. Third connecting member; 311. Connecting rod; 312. Third connecting plate; 3121. Third accommodating groove; 313. Fourth connecting plate; 314. Auxiliary rod; 32. Armrest rod; 33. Protection rod; 34. Intermediate rod; 341. Fifth connecting plate; 4. Bending connecting member. Detailed implementation manner

[0035] The following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the present utility model and not for limiting it. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0036] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0038] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0039] Such as Figures 1 - 13As shown in the figure, this embodiment provides a prefabricated staircase, which includes a bearing assembly 1, a tread assembly 2, and a handrail assembly 3. There are two bearing assemblies 1, and the two bearing assemblies 1 are arranged parallel to each other and spaced apart in the horizontal direction. The bearing assembly 1 includes two first connectors 11 and two diagonal braces 12. The two first connectors 11 are configured to be arranged with one being lower and the other being higher. The two diagonal braces 12 are parallel to each other and spaced apart in the vertical direction between the two first connectors 11. The two ends of the diagonal brace 12 are respectively detachably connected to the two first connectors 11. The tread assembly 2 is arranged between the two bearing assemblies 1 and includes a plurality of tread plates 21 extending in the horizontal direction and a plurality of kick plates 22 extending in the vertical direction. Both ends of the tread plate 21 in the horizontal direction are provided with a first end and a second end. For one bearing assembly 1, the first end is detachably connected to one diagonal brace 12, and the second end is detachably connected to the other diagonal brace 12. The plurality of tread plates 21 are spaced apart along the extension direction of the diagonal brace 12, and each adjacent two tread plates 21 are connected by a kick plate 22. There are two handrail assemblies 3, and the two handrail assemblies 3 correspond to the two bearing assemblies 1 one by one. The handrail assembly 3 is detachably connected to the bearing assembly 1.

[0040] In this embodiment, there are two bearing assemblies 1, and the two bearing assemblies 1 are arranged parallel to each other and spaced apart in the horizontal direction to serve as the basic framework of the prefabricated staircase. The bearing assembly 1 includes two first connectors 11 and two diagonal braces 12. The two first connectors 11 are configured to be arranged with one being lower and the other being higher to meet the rationality of the staircase structure layout. The two diagonal braces 12 are parallel to each other and spaced apart in the vertical direction between the two first connectors 11, thus forming a stable support structure. The two ends of the diagonal brace 12 are respectively detachably connected to the two first connectors 11 to facilitate assembly and disassembly. The tread assembly 2 is arranged between the two bearing assemblies 1 and includes a plurality of tread plates 21 extending in the horizontal direction and a plurality of kick plates 22 extending in the vertical direction to meet the normal use of users when going up and down the stairs. Both ends of the tread plate 21 in the horizontal direction are provided with a first end and a second end. For one bearing assembly 1, the first end is detachably connected to one diagonal brace 12, and the second end is detachably connected to the other diagonal brace 12, enabling each component to be disassembled and assembled, facilitating the operation of the operators, and being reusable. The operators can quickly complete the assembly without complex welding operations, improving the construction efficiency. The plurality of tread plates 21 are spaced apart along the extension direction of the diagonal brace 12, and each adjacent two tread plates 21 are connected by a kick plate 22 to ensure the safety of the prefabricated staircase during use. There are two handrail assemblies 3, and the two handrail assemblies 3 correspond to the two bearing assemblies 1 one by one. The handrail assembly 3 is detachably connected to the bearing assembly 1, further improving the installation and disassembly efficiency and ensuring the use safety. Through the above settings, the prefabricated staircase of this embodiment can be easily disassembled and assembled, reusable, and safer and more convenient to use.

[0041] It is understandable that the detachable connection of the above components can be achieved by bolt connection or snap connection, etc., which will not be explained in detail here.

[0042] The specific structure of the assembled staircase is described below:

[0043] Specifically, Figures 1 - 6 As shown, the bearing assembly 1 further includes two bearing frames 13, which are used to connect to the building structure and can effectively disperse the load from the foot pedal 21 and the user to ensure the stability and bearing capacity of the bearing assembly 1. The two bearing frames 13 are connected to the two first connecting members 11 in a one-to-one correspondence, and a slot 131 is provided at one end of the bearing frame 13, and a protrusion 111 that is connected to the slot 131 is provided on the first connecting member 11. The above connection method is simple and fast, and does not require complicated tools. The operator can quickly complete the assembly and disassembly work.

[0044] More specifically, if Figure 6 As shown, the card slot 131 is extended in the vertical direction, a port is opened at the upper end of the card slot 131, and the bottom end is the bottom of the slot. A guide groove is provided at the end of the card slot 131 away from the supporting frame 13, and the guide groove is set through. The first connecting member 11 is slidably connected to the guide groove, so that the first connecting member 11 can slide from top to bottom into the card slot 131 to achieve card connection, thereby facilitating the operation of the operator and improving the working efficiency.

[0045] More specifically, Figures 1 - 6 As shown, the bearing assembly 1 also includes a penetration member 14 and a nut member 15. When the first connecting member 11 is clamped on the bearing frame 13, the penetration member 14 is penetrated through the first connecting member 11 and abuts against the end of the card slot 131, thereby enhancing the stability of the connection points of each component and reducing the risk of loosening or falling off of each component due to long-term use or external force. One end of the penetration member 14 passes through the bottom of the card slot 131 and is screwed to the nut member 15, thereby further improving the connection strength between the first connecting member 11 and the bearing frame 13. When the bearing assembly 1 needs to be maintained, repaired or replaced, it is only necessary to loosen the nut member 15 to disassemble the penetration member 14 and the first connecting member 11 without complicated tools or a lot of disassembly work. Among them, the penetration member 14 can be a bolt or a screw, as long as it can achieve the above-mentioned functions, and no excessive restrictions are made here.

[0046] Specifically, Figure 6As shown, the carrier frame 13 includes two U-shaped plates 132 that face each other and are disposed opposite to each other. Each U-shaped plate 132 includes a horizontal bottom plate and two vertical side plates. The two vertical side plates are respectively connected to both ends of the horizontal bottom plate. It is not only light in structure but also easy to process and manufacture. Connecting recesses 1321 and connecting protrusions 1322 are provided at both ends of the U-shaped plate 132. The two U-shaped plates 132 are placed in opposite directions so that their openings face each other, and the connecting protrusions 1322 are snapped into the connecting recesses 1321. The two U-shaped plates 132 can be buckled to form a frame structure, which is not only convenient for connection but also easy to disassemble and assemble, improving the operation efficiency.

[0047] Specifically, as Figures 1 - 6 shown, the first connecting member 11 includes two first connecting plates 112 that can be buckled with each other and detachably connected, so as to facilitate the operator to install and disassemble the first connecting member 11. A protrusion is provided at one end of the first connecting plate 112. When the two first connecting plates 112 are buckled with each other, the two protrusions jointly form a protrusion 111 that cooperates with the card slot 131, making the connection between the two first connecting plates 112 and the carrier frame 13 more stable. A first accommodation groove 1121 for accommodating the diagonal brace 12 is provided on the first connecting plate 112. The opposite ends of the diagonal brace 12 can be clamped between the two first connecting plates 112. By passing bolts through the two first connecting plates 112 and the diagonal brace 12, a stable connection between the first connecting member 11 and the diagonal brace 12 can be achieved.

[0048] More specifically, the first accommodation groove 1121 and the shape of the diagonal brace 12 are conformally matched to ensure that the diagonal brace 12 can be stably clamped between the two connecting plates. Two first accommodation grooves 1121 are provided on the first connecting plate 112. When the two first connecting plates 112 are buckled with each other, the two first accommodation grooves 1121 are correspondingly buckled and respectively abut against the outer peripheral walls of the two diagonal braces 12, thereby improving the connection strength between the components. Among them, the diagonal brace 12 can be a diagonal brace rod or a diagonal brace plate, as long as the stability of the overall structure can be ensured, and no more limitations are made here.

[0049] Specifically, as Figures 1 - 7 shown, the carrier assembly 1 further includes a plurality of second connecting members 16. The two ends of the second connecting member 16 are respectively detachably connected to two adjacent diagonal braces 12, so that the two diagonal braces 12 can further improve the strength and load-bearing capacity of the overall structure through the second connecting member 16, and it is also convenient for the assembly, disassembly and reuse of each component. The plurality of second connecting members 16 are arranged at intervals along the extending direction of the diagonal brace 12 to ensure that the second connecting members 16 between the diagonal braces 12 are evenly distributed, avoiding the occurrence of local stress concentration.

[0050] More specifically, as Figure 7As shown, the second connecting member 16 includes two second connecting plates 161 that can be interlocked and detachably connected, so that the installation and removal process of the second connecting member 16 becomes simple and quick, and at the same time, it is also convenient to maintain and replace the second connecting member 16 when necessary. Among them, the above-mentioned detachable connection can be connected by bolts or snaps, which is not limited too much here. The two ends of the second connecting plate 161 are respectively provided with second accommodating grooves 1611, and the shape and size of the second accommodating grooves 1611 are adapted to the cross-section of the diagonal bracing member 12. When the two second connecting plates 161 are interlocked, the two adjacent diagonal bracing members 12 in the bearing assembly 1 can be clamped in the two second accommodating grooves 1611 one by one, thereby enhancing the stability of the entire structural system. Even when subjected to a large load or external force, the diagonal bracing member 12 is not easy to loosen or fall off.

[0051] More specifically, in this embodiment, the middle portion of the second connecting plate 161 protrudes outward, that is, the plate surface between the two second accommodating grooves 1611 protrudes outward, so that the two second connecting plates 161 can be abutted against each other when buckled, and bolts are passed through the two second connecting plates 161 and the diagonal support member 12, thereby ensuring the detachable assembly and connection strength of the above-mentioned components.

[0052] Specifically, Figures 1 - 4 As shown, in this embodiment, the foot pedal 21 is Z-shaped. The Z-shaped structure can disperse stress through its unique shape when subjected to pedal force, reduce the situation where a single point is subjected to excessive force, and help to enhance the stability and strength of the foot pedal 21. In the vertical direction, the two ends of the foot pedal 21 are detachably connected to two adjacent kick plates 22, thereby facilitating the installation, disassembly and maintenance of the foot pedal 21, and also making the entire structure more flexible and can be adjusted or replaced as needed. The above-mentioned detachable connection can be achieved by bolt connection or buckle connection, which is not limited here. Figure 4 As shown, the kick plate 22 includes two kick panels 221 that are parallel to each other and spaced apart, and the footrest 21 is sandwiched between the two kick panels 221, which not only effectively fixes the position of the footrest 21 to prevent it from sliding or shifting during use, but also increases the stability of the footrest 21. In other embodiments, the footrest 21 may also be L-shaped, as long as it facilitates the detachable connection between the footrest 21 and the kick plate 22, and no further limitation is made here.

[0053] More specifically, if Figures 1 - 3 As shown, along the vertical direction, a kick plate 22 is additionally provided at the lower end of the foot pedal 21 at the bottom end to improve the safety of the user walking on the stairs.

[0054] Specifically, Figures 1 - 9As shown, the armrest assembly 3 includes a third connecting member 31, an armrest rod 32, and a plurality of protective rods 33. The armrest rod 32, the protective rods 33, the third connecting member 31, and the brace 12 are arranged in sequence from top to bottom to ensure the rationality of the layout of each component, enabling users to go up and down the stairs more safely. The armrest rod 32 and the brace 12 are parallel to each other and arranged at intervals, thereby providing necessary support and grasping functions for users. Users can maintain body balance or assist in movement through the armrest rod 32. One end of the third connecting member 31 is detachably connected to the adjacent brace 12, and the other end is detachably connected to the protective rod 33 and detachably connected to the armrest rod 32 through the protective rod 33, so that each component can meet the requirements of being easy to disassemble, assemble, and reuse, avoiding the problems of a large amount of welding and destructive disassembly in the past, and saving the operation cost. The plurality of protective rods 33 are arranged at intervals between the armrest rod 32 and the third connecting member 31 along the extending direction of the brace 12, thereby enhancing the overall structural strength of the armrest assembly 3 and preventing users from accidentally colliding with the structure or components below the armrest rod 32 to a certain extent. In addition, the protective rod 33 can also serve as an additional support point to improve the load-bearing capacity of the armrest assembly 3.

[0055] More specifically, as Figure 1 and Figure 9 shown, the third connecting member 31 includes a plurality of connecting rods 311, a plurality of third connecting plates 312, and a plurality of fourth connecting plates 313. At one end of the connecting rod 311, two third connecting plates 312 that can be buckled and detachably connected to each other are correspondingly provided for connecting the protective rod 33. By buckling the two third connecting plates 312 with each other, the protective rod 33 and the connecting rod 311 can be clamped between the two third connecting plates 312, thereby improving the connection stability and strength of each component. Then, bolts are passed through the two third connecting plates 312 and screwed to nuts, thereby realizing the firm connection of the two third connecting plates 312. As Figure 1 and Figure 9 shown, at the other end of the connecting rod 311, two fourth connecting plates 313 that can be buckled and detachably connected to each other are correspondingly provided for connecting the brace 12. By buckling the two fourth connecting plates 313 with each other, the brace 12 and the connecting rod 311 can be clamped between the two fourth connecting plates 313, improving the connection stability and strength of each component. Then, bolts are passed through the two fourth connecting plates 313 and screwed to the corresponding nuts, thereby realizing the firm connection of the two fourth connecting plates 313. Through the above settings, the protective rod 33 and the brace 12 can be firmly connected together, which is beneficial to the effective transfer of loads. It can be understood that the protective rod 33 and the connecting rod 311 can be independently provided or share a single rod for easy local material selection and actual installation, and no more limitations are made here.

[0056] Even more specifically, as Figure 1and Figure 9 As shown in Figure 9 , a third receiving groove 3121 for receiving the protection rod 33 and the connecting rod 311 is provided on the third connecting plate 312. The third receiving groove 3121 is provided to penetrate along the extending direction of the protection rod 33, and is conformally matched with the shapes of the protection rod 33 and the connecting rod 311, so as to ensure that when the two third connecting plates 312 are buckled with each other, the protection rod 33 and the connecting rod 311 can be correspondingly clamped in the third receiving groove 3121, improving the connection stability of each component. In addition, as Figure 1 and Figure 2 As shown in Figure 2 , the third connecting member 31 further includes an auxiliary rod 314. The auxiliary rod 314 is connected to the diagonal brace 12, and is parallel and spaced from the diagonal brace 12. The auxiliary rod 314 is arranged between the protection rod 33 and the adjacent diagonal brace 12, so that the two ends of the protection rod 33 are respectively connected to the handrail rod 32 and the auxiliary rod 314, further improving the stability of the overall structure. As Figures 1 - 9 As shown in Figures 1 - 9 , a groove for receiving the auxiliary rod 314 is provided on the third connecting plate 312. The groove communicates with the third receiving groove 3121. When the two third connecting plates 312 are buckled with each other, the auxiliary rod 314 is clamped in the groove, and the connection is more stable.

[0057] Specifically, as Figures 1 - 10 As shown in Figures 1 - 10 , along the extending direction of the diagonal brace 12, an intermediate rod 34 is provided between two adjacent protection rods 33. The two ends of the intermediate rod 34 are respectively detachably connected to the handrail rod 32 and the auxiliary rod 314. A plurality of intermediate rods 34 are parallel and spaced from each other. By providing the intermediate rod 34, the external force can be effectively dispersed, enhancing the anti-deformation ability of the overall structure, and facilitating the assembly and disassembly by the operators.

[0058] More specifically, as Figures 1 - 11 As shown in Figures 1 - 11 , two fifth connecting plates 341 that can be buckled and detachably connected to each other are provided at one end of the intermediate rod 34. When the two fifth connecting plates 341 are buckled with each other, they can abut against the outer peripheral wall of the auxiliary rod 314, that is, the auxiliary rod 314 is clamped in the groove between the two fifth connecting plates 341, ensuring the connection strength between the auxiliary rod 314 and the intermediate rod 34, and further improving the anti-deformation ability of the overall structure. Among them, the above-mentioned detachable connection can be realized by bolts or screws, and no further description is made here.

[0059] Specifically, as Figures 1 - 13 As shown in Figures 1 - 13 , connection holes are provided on the protection rod 33, and bolts can pass through the handrail rod 32 and the corresponding connection holes, thereby realizing the detachable connection between the protection rod 33 and the handrail rod 32. In addition, in order to further improve the connection strength between the above components, as Figure 13As shown, the prefabricated staircase further includes a bent connecting member 4. Two bent connecting members 4 are provided corresponding to one protective rod 33. The two bent connecting members 4 are respectively arranged on the opposite sides of the protective rod 33. The bent connecting members 4 respectively abut against the handrail rod 32 and the protective rod 33, and the bent connecting members 4, the protective rod 33 and the handrail rod 32 are connected to each other by bolts. A limiting groove is provided at the end of the protective rod 33, so that the bent connecting member 4 can abut in the limiting groove, further improving the connection stability of each component.

[0060] More specifically, the bent connecting member 4 is a bent plate, which is convenient for obtaining materials locally and on-site processing. In other embodiments, the bent connecting member 4 includes a bent block, as long as the above functions can be realized, and no more limitations are made here.

[0061] It can be understood that the detachable connection between the middle rod 34 and the handrail rod 32 can be specifically realized by referring to the detachable connection between the protective rod 33 and the handrail rod 32, and will not be elaborated here.

[0062] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Prefabricated staircase, characterized in that, Including: Two load-bearing components (1), which are arranged parallel to each other and at intervals in the horizontal direction. The load-bearing component (1) includes two first connecting members (11) and two diagonal braces (12). The two first connecting members (11) are configured to be arranged, one at a lower position and the other at a higher position. The two diagonal braces (12) are parallel to each other and arranged at intervals in the vertical direction between the two first connecting members (11). Two ends of the diagonal brace (12) are respectively detachably connected to the two first connecting members (11); A tap-dancing component (2), which is arranged between the two load-bearing components (1), includes a plurality of foot pedals (21) extending in the horizontal direction and a plurality of foot kick plates (22) extending in the vertical direction. Both ends of the foot pedal (21) in the horizontal direction are provided with a first end and a second end. For one load-bearing component (1), the first end is detachably connected to one diagonal brace (12), and the second end is detachably connected to the other diagonal brace (12). The plurality of foot pedals (21) are arranged at intervals along the extending direction of the diagonal brace (12), and each adjacent two foot pedals (21) are connected by one foot kick plate (22); Two armrest components (3), corresponding to the two load-bearing components (1) one by one, and the armrest component (3) is detachably connected to the load-bearing component (1).

2. The prefabricated staircase according to claim 1, wherein The load-bearing component (1) further includes two load-bearing frames (13), and the two load-bearing frames (13) are connected to the two first connecting members (11) one by one. One end of the load-bearing frame (13) is provided with a card slot (131), and the first connecting member (11) is provided with a protrusion (111) that is snapped into the card slot (131).

3. The prefabricated staircase according to claim 2, characterized in that, The load-bearing component (1) further includes a penetrating member (14) and a nut member (15). When the first connecting member (11) is snapped into the load-bearing frame (13), the penetrating member (14) penetrates through the first connecting member (11) and abuts against the port of the card slot (131). One end of the penetrating member (14) passes out from the bottom of the card slot (131) and is screwed to the nut member (15).

4. The prefabricated staircase according to claim 2, characterized in that, The load-bearing frame (13) includes two U-shaped plates (132) that face each other and are arranged opposite to each other. Both ends of the U-shaped plate (132) are provided with a connecting recess (1321) and a connecting protrusion (1322). By snapping the connecting protrusion (1322) into the connecting recess (1321), the two U-shaped plates (132) can be buckled to form a frame structure.

5. The prefabricated staircase according to claim 1, characterized in that, The first connecting member (11) includes two first connecting plates (112) that can be buckled with each other and detachably connected. The first connecting plate (112) is provided with a first accommodating groove (1121) for accommodating the diagonal brace (12), and the opposite ends of the diagonal brace (12) can be clamped between the two first connecting plates (112).

6. The prefabricated staircase according to claim 1, wherein, The load-bearing assembly (1) further includes a plurality of second connecting members (16). Both ends of the second connecting members (16) are detachably connected to two adjacent diagonal braces (12) respectively, and the plurality of second connecting members (16) are arranged at intervals along the extending direction of the diagonal braces (12).

7. The prefabricated staircase according to claim 6, wherein, The second connecting member (16) includes two second connecting plates (161) that can be buckled with each other and detachably connected. Second accommodating grooves (1611) are respectively provided at both ends of the second connecting plates (161). When the two second connecting plates (161) are buckled with each other, two adjacent diagonal braces (12) in the load-bearing assembly (1) can be respectively clamped in the two second accommodating grooves (1611).

8. The prefabricated staircase according to claim 1, characterized in that, The armrest assembly (3) includes a third connecting member (31), an armrest rod (32), and a plurality of protective rods (33). The armrest rod (32), the protective rods (33), the third connecting member (31), and the diagonal braces (12) are arranged in sequence from top to bottom. The armrest rod (32) is parallel and spaced from the diagonal braces (12). One end of the third connecting member (31) is detachably connected to the adjacent diagonal brace (12), and the other end is detachably connected to the armrest rod (32) through the protective rods (33). The plurality of protective rods (33) are arranged at intervals along the extending direction of the diagonal braces (12) between the armrest rod (32) and the third connecting member (31).

9. The prefabricated staircase according to claim 8, characterized in that, The third connecting member (31) includes a plurality of connecting rods (311), a plurality of third connecting plates (312), and a plurality of fourth connecting plates (313). Two third connecting plates (312) that can be buckled with each other and detachably connected are correspondingly provided at one end of the connecting rod (311) for connecting the protective rods (33), and two fourth connecting plates (313) that can be buckled with each other and detachably connected are correspondingly provided at the other end for connecting the diagonal braces (12).

10. The prefabricated staircase according to any one of claims 1-9, characterized in that, The footrest (21) is in a Z shape. Along the vertical direction, both ends of the footrest (21) are detachably connected to two adjacent kick plates (22) respectively. The kick plate (22) includes two kick panels (221) that are parallel and spaced from each other, and the footrest (21) is clamped between the two kick panels (221).

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