Prefabricated building stair convenient to transport

Abstract

The utility model belongs to the field of portable building transportation, and particularly relates to a convenient-to-transport stair for a fabricated building. The technical problems that the space occupancy rate in a transport vehicle is low due to the fact that the portable building stairs are inconvenient to stack and transport, and fixing is unstable when the portable building stairs are connected and poured are solved. According to the technical scheme, the fabricated stair convenient to transport for the building comprises stair plate assemblies; the device further comprises a pouring connecting assembly, a limiting assembly and a stop block assembly. The first fixing plate is placed between the two connecting grooves, then the inner wall of the limiting groove is attached to the outer wall of the limiting block, and the second fixing plate is fixed to the outer wall of the stud in a threaded mode through the nut; then the nut is rotated, the upper end of the second fixing plate is tightly attached to the lower end of the stair, meanwhile, the lower end of the first fixing plate is tightly attached to the lower end of the inner wall of the connecting groove, and the problem that the portable building stair is unstable in fixed connection is solved.

Description

Technical Field

[0001] The utility model belongs to the field of portable building transportation, and in particular relates to a staircase for assembled buildings which is easy to transport. Background Art

[0002] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in factories, transported to construction sites, and assembled and installed on site through reliable connection methods. Stairs are components used for vertical transportation between floors in buildings, and are used for transportation between floors and when there are large height differences. Under current circumstances, the stairs used in prefabricated buildings are mostly one-piece structures cast in reinforced concrete. As a result, during transportation, the finished stairs are usually not convenient to stack in order to ensure the transportation quality of the product, resulting in low space utilization efficiency, and there is a problem of unstable fixation when connecting and casting portable stairs. Utility Model Content

[0003] In order to overcome the problem that the existing integrated portable stairs are not convenient to stack during transportation of prefabricated building stairs, resulting in low utilization of the internal space of the transport vehicle, and there is a problem of unstable fixation when connecting and pouring the portable building stairs.

[0004] The technical solution of the utility model is: a staircase for assembled buildings that is easy to transport, including a stair tread assembly; also including a pouring connection assembly, a limit assembly and a block assembly; the stair tread assembly is provided with a pouring connection assembly for connecting pouring; the pouring connection assembly is provided with a limit assembly for extrusion and fixing; the pouring connection assembly is provided with a block assembly for pouring and leak-proofing.

[0005] Preferably, the two ladder tread assemblies are connected by a limiting assembly and a block assembly. When transportation is required, the ladder surfaces of the two ladder tread assemblies are stacked against each other to make full use of the space of the transport vehicle. When the stairs need to be installed, the pouring connection assembly and the limiting assembly are connected, and the pouring connection assembly and the limiting assembly are inserted into the two ladder tread assemblies. The position of the pouring connection assembly is adjusted by the limiting assembly, and then the block assembly is inserted into the two ladder tread assemblies, and then concrete is used to cast and fix them.

[0006] Preferably, the stair tread assembly includes stairs, connecting grooves, casting grooves, hook grooves and calibration grooves; two hook grooves are provided at the upper end of the stairs; a connecting groove is provided on the outer wall of the right end of the stairs; a casting groove is provided through the upper end of the stairs; the casting groove and the connecting groove are interconnected; and evenly distributed calibration grooves are provided at the lower end of the stairs. The veneer ends of the two stairs are placed in close proximity to each other, which can improve the space utilization efficiency of the prefabricated stairs in the transport vehicle. The two stairs are connected to form a staircase, and the calibration groove of the stairs is aligned with the embedded steel bars on the construction surface for rapid positioning and installation. The hook groove is used in conjunction with the hook of the crane. By pouring concrete from the casting groove and causing it to flow into the connecting groove, the two stairs are fixedly connected.

[0007] Preferably, the pouring connection assembly includes a first fixed plate, a fixed block, a limit block, a stud, a nut, a filling groove, a steel bar and a slot; the first fixed plate is movably arranged on the inner wall of the groove formed by the two connecting grooves; the lower end of the first fixed plate is fixedly connected to the fixed block; the lower end of the fixed block is fixedly connected to the limit block; the lower end of the fixed block is fixedly connected to symmetrical studs; the outer wall of the stud is threaded with a nut; the upper end of the first fixed plate is penetrated by a uniformly distributed filling groove; the front and rear ends of the inner wall of the filling groove are fixedly connected with steel bars; the front and rear ends of the first fixed plate are provided with slots, and by placing the first fixed plate between the two connecting grooves, when pouring into the pouring groove, concrete flows into the filling groove on the first fixed plate for filling, so that the first fixed plate pours and connects the two stairs.

[0008] Preferably, the limiting assembly includes a second fixing plate, a U-shaped plate, a through hole and a limiting groove; a second fixing plate is provided at the lower end of the first fixing plate; the limiting groove and the through hole are penetrated at the upper and lower ends of the second fixing plate; the upper end of the second fixing plate is fixedly connected to the U-shaped plate; the inner wall of the U-shaped plate fits with the outer wall of the fixing block; the outer wall of the stud fits with the inner wall of the through hole; the upper end of the nut fits with the lower end of the second fixing plate, the first fixing plate is inserted into the two connecting grooves, and then the inner wall of the limiting groove is fit with the outer wall of the limiting block, and the second fixing plate is threadedly fixed to the outer wall of the stud using the nut; then the nut is rotated to make the upper end of the second fixing plate fit tightly with the lower end of the stairs, so that the lower end of the first fixing plate fits tightly with the lower end of the inner wall of the connecting groove.

[0009] Preferably, the block assembly includes an L-shaped movable block and a third fixed plate; the inner wall of the slot is movably provided with an L-shaped movable block; the third fixed plate is fixedly connected to one end of the inner walls of the two L-shaped movable blocks that are away from each other; the upper end of the third fixed plate is fitted with the upper end of the inner wall of the connecting slot; the lower end of the third fixed plate is fitted with the upper end of the first fixed plate, and when the first fixed plate is adjusted and fixed, the L-shaped movable block is inserted into the inner wall of the slot, so that the upper and lower ends of the third fixed plate are distributed on the inner wall of the connecting slot and fit with the outer wall of the first fixed plate, thereby injecting concrete into the casting slot.

[0010] Preferably, the outer wall of the first fixed plate fits with the inner wall of the connecting groove; the left and right ends of the L-shaped movable block fit with the left and right ends of the inner walls of the two connecting grooves, so that when concrete is poured inside the connecting groove, the connection between the two stairs and the first fixed plate is more stable.

[0011] Preferably, the casting groove and the filling groove are interconnected; the limit block is adapted to the limit groove, and by pouring into the casting groove, concrete can flow evenly into the interior of the filling groove and the upper part of the first fixed plate. Since the outer wall of the limit block fits the inner wall of the limit groove, the concrete will not flow out of the limit groove.

[0012] Beneficial effects of the utility model:

[0013] 1. By placing the first fixing plate between the two connection grooves, and then fitting the inner wall of the limit groove with the outer wall of the limit block, the second fixing plate is threadedly fixed to the outer wall of the stud using a nut; then the nut is turned to make the upper end of the second fixing plate fit tightly with the lower end of the stairs, and at the same time, the lower end of the first fixing plate fits tightly with the lower end of the inner wall of the connection groove, thereby solving the problem of unstable fixed connection of the portable stairs;

[0014] 2. By inserting the L-shaped movable block into the inner wall of the slot, the upper and lower ends of the third fixing plate are distributed on the inner wall of the connecting groove and the outer wall of the first fixing plate, so that concrete is poured into the casting groove, so that the concrete flows evenly into the inside of the filling groove and the upper part of the first fixing plate. Since the outer wall of the limit block fits the inner wall of the limit groove, the concrete will not flow out of the limit groove, which solves the problem of cumbersome casting connection when installing the portable staircase;

[0015] 3. By placing the facing ends of the two stairs against each other, the space utilization efficiency of the assembled stairs in the transport vehicle can be improved, solving the problem of low space occupancy in the transport vehicle due to the inconvenience of stacking portable stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a three-dimensional structural schematic diagram of a staircase for easy transportation for an assembled building of the utility model;

[0017] Figure 2 The present invention shows a three-dimensional structural schematic diagram of a staircase assembly of a prefabricated building staircase that is easy to transport;

[0018] Figure 3 The present invention shows a schematic diagram of the three-dimensional structure of a pouring connection assembly and a stopper assembly of a staircase for an assembled building that is easy to transport;

[0019] Figure 4The three-dimensional structure schematic diagram of a limit assembly of a staircase for an assembled building that is easy to transport is shown in the utility model;

[0020] Figure 5 What is shown is a three-dimensional structural schematic diagram of a pouring connection component, a limit component and a stop block component of a staircase that is easy to transport for an assembled building according to the utility model.

[0021] The marks in the accompanying drawings are: 1-stair plate assembly, 101-stairs, 102-connecting groove, 103-casting groove, 104-hook groove, 105-calibration groove, 2-pouring connection assembly, 201-first fixed plate, 202-fixed block, 203-limiting block, 204-stud, 205-nut, 206-filling groove, 207-rebar, 208-slot, 3-limiting assembly, 301-second fixed plate, 302-U-shaped plate, 303-through hole, 304-limiting groove, 4-block assembly, 401-L-shaped movable block, 402-third fixed plate. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1 The utility model provides an embodiment: a staircase for easy transportation of assembled buildings, including a staircase assembly 1; also including a pouring connection assembly 2, a limiting assembly 3 and a block assembly 4; the staircase assembly 1 is provided with a pouring connection assembly 2 for connecting pouring; the pouring connection assembly 2 is provided with a limiting assembly 3 for extrusion and fixing; the pouring connection assembly 2 is provided with a block assembly 4 for pouring and leak-proofing.

[0024] See also Figure 2 In this embodiment, the stair plate assembly 1 includes a staircase 101, a connecting groove 102, a casting groove 103, a claw groove 104 and a calibration groove 105; two claw grooves 104 are provided at the upper end of the staircase 101; a connecting groove 102 is provided on the outer wall of the right end of the staircase 101; a casting groove 103 is provided through the upper end of the staircase 101; the casting groove 103 and the connecting groove 102 are connected to each other; and uniformly distributed calibration grooves 105 are provided at the lower end of the staircase 101.

[0025] See also Figure 3In this embodiment, the pouring connection assembly 2 includes a first fixing plate 201, a fixing block 202, a limiting block 203, a stud 204, a nut 205, a filling groove 206, a steel bar 207 and a slot 208; the first fixing plate 201 is movably arranged on the inner wall of the groove body formed by the two connecting grooves 102; the lower end of the first fixing plate 201 is fixedly connected to the fixing block 202; the lower end of the fixing block 202 is fixedly connected to the limiting block 203; the lower end of the fixing block 202 is fixedly connected to symmetrical studs 204; the outer wall of the stud 204 is threadedly installed with a nut 205; the upper end of the first fixing plate 201 is penetrated by a uniformly distributed filling groove 206; the inner wall of the filling groove 206 is Steel bars 207 are fixedly connected at the front and rear ends; slots 208 are provided at the front and rear ends of the first fixed plate 201, and the block assembly 4 includes an L-shaped movable block 401 and a third fixed plate 402; an L-shaped movable block 401 is movably provided on the inner wall of the slot 208; the third fixed plate 402 is fixedly connected to one end of the inner walls of the two L-shaped movable blocks 401 that are away from each other; the upper end of the third fixed plate 402 is fitted with the upper end of the inner wall of the connecting groove 102; the lower end of the third fixed plate 402 is fitted with the upper end of the first fixed plate 201, and the outer wall of the first fixed plate 201 is fitted with the inner wall of the connecting groove 102; the left and right ends of the L-shaped movable block 401 are fitted with the left and right ends of the inner walls of the two connecting grooves 102.

[0026] See also Figure 4-5 In the present embodiment 3, the limiting assembly 3 includes a second fixing plate 301, a U-shaped plate 302, a through hole 303 and a limiting groove 304; the lower end of the first fixing plate 201 is provided with the second fixing plate 301; the upper and lower ends of the second fixing plate 301 are penetrated with limiting grooves 304 and through holes 303; the upper end of the second fixing plate 301 is fixedly connected with the U-shaped plate 302; the inner wall of the U-shaped plate 302 is fitted with the outer wall of the fixing block 202; the outer wall of the stud 204 is fitted with the inner wall of the through hole 303, and the casting groove 103 and the filling groove 206 are interconnected; the limiting block 203 is adapted to the limiting groove 304; the upper end of the nut 205 is fitted with the lower end of the second fixing plate 301.

[0027] When the stairs need to be stacked, the facing ends of the two stairs 101 are placed close to each other, so that the space occupancy rate inside the transport vehicle is improved;

[0028] When the split staircase needs to be connected and assembled, the first fixing plate 201 is placed between the two connecting grooves 102, and then the inner wall of the limiting groove 304 is fitted with the outer wall of the limiting block 203, and the second fixing plate 301 is threadedly fixed to the outer wall of the stud 204 using the nut 205; then the nut 205 is rotated to make the upper end of the second fixing plate 301 fit tightly with the lower end of the staircase 101, and at the same time, the lower end of the first fixing plate 201 fits tightly with the lower end of the inner wall of the connecting groove 102;

[0029] When pouring is required, the L-shaped movable block 401 is inserted into the inner wall of the slot 208, so that the upper and lower ends of the third fixing plate 402 are distributed on the inner wall of the connecting groove 102 and the outer wall of the first fixing plate 201, thereby injecting concrete into the pouring groove 103, so that the concrete flows evenly into the inside of the filling groove 206 and the upper part of the first fixing plate 201. Since the outer wall of the limit block 203 is in contact with the inner wall of the limit groove 304, the concrete will not flow out of the limit groove 304;

[0030] After the two staircases 101 are poured and connected, the hook groove 104 is used in conjunction with the hook of the crane, and then the staircase calibration groove 105 is aligned with the embedded steel bars on the construction surface for rapid positioning and installation.

[0031] Through the above steps, the two ladder tread assemblies 1 are connected through the limiting assembly 3 and the block assembly 4. When transportation is required, the ladder surfaces of the two ladder tread assemblies 1 are stacked together to make full use of the space of the transport vehicle. When the stairs need to be installed, the pouring connection assembly 2 and the limiting assembly 3 are connected, and the pouring connection assembly 2 and the limiting assembly 3 are inserted into the two ladder tread assemblies 1. The position of the pouring connection assembly 2 is adjusted by the limiting assembly 3, and then the block assembly 4 is inserted into the two ladder tread assemblies 1, and then concrete is used to cast and fix them.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A staircase for use in an assembled building and convenient for transportation, comprising a stair tread assembly (1); characterized in that: It also comprises a pouring connection assembly (2), a limiting assembly (3) and a stopper assembly (4); the ladder plate assembly (1) is provided with a pouring connection assembly (2) for connection pouring; the pouring connection assembly (2) is provided with a limiting assembly (3) for extrusion and fixing; and the pouring connection assembly (2) is provided with a stopper assembly (4) for pouring and leak prevention.

2. The transportable staircase for prefabricated buildings according to claim 1, characterized in that: The staircase assembly (1) comprises a staircase (101), a connecting groove (102), a casting groove (103), a hook groove (104) and a calibration groove (105); two hook grooves (104) are provided at the upper end of the staircase (101); a connecting groove (102) is provided on the outer wall of the right end of the staircase (101); a casting groove (103) is provided through the upper end of the staircase (101); the casting groove (103) and the connecting groove (102) are interconnected; and uniformly distributed calibration grooves (105) are provided at the lower end of the staircase (101).

3. The transportable staircase for prefabricated buildings according to claim 1, characterized in that: The pouring connection assembly (2) comprises a first fixing plate (201), a fixing block (202), a limiting block (203), a stud (204), a nut (205), a filling groove (206), a steel bar (207) and a slot (208); the first fixing plate (201) is movably arranged on the inner wall of the groove body formed by the two connecting grooves (102); the lower end of the first fixing plate (201) is fixedly connected to the fixing block (202); the lower end of the fixing block (202) is fixedly connected to the limiting block (203); the lower end of the fixing block (202) is fixedly connected to symmetrical studs (204); the outer wall of the stud (204) is threadedly mounted with a nut (205); the upper end of the first fixing plate (201) is penetrated by a filling groove (206) evenly distributed; the front and rear ends of the inner wall of the filling groove (206) are fixedly connected to the steel bar (207); the front and rear ends of the first fixing plate (201) are provided with a slot (208).

4. The transportable staircase for prefabricated buildings according to claim 3 is characterized in that: The limiting assembly (3) comprises a second fixing plate (301), a U-shaped plate (302), a through hole (303) and a limiting groove (304); the second fixing plate (301) is arranged at the lower end of the first fixing plate (201); the limiting groove (304) and the through hole (303) are provided at the upper and lower ends of the second fixing plate (301); the U-shaped plate (302) is fixedly connected to the upper end of the second fixing plate (301); the inner wall of the U-shaped plate (302) is fitted with the outer wall of the fixing block (202); the outer wall of the stud (204) is fitted with the inner wall of the through hole (303); and the upper end of the nut (205) is fitted with the lower end of the second fixing plate (301).

5. The transportable staircase for prefabricated buildings according to claim 3, characterized in that: The stopper assembly (4) comprises an L-shaped movable block (401) and a third fixed plate (402); the inner wall of the slot (208) is movably provided with the L-shaped movable block (401); the inner walls of the two L-shaped movable blocks (401) are fixedly connected to one end thereof which is away from each other; the upper end of the third fixed plate (402) is in contact with the upper end of the inner wall of the connecting groove (102); and the lower end of the third fixed plate (402) is in contact with the upper end of the first fixed plate (201).

6. The transportable staircase for prefabricated buildings according to claim 5, characterized in that: The outer wall of the first fixed plate (201) fits with the inner wall of the connecting groove (102); the left and right ends of the L-shaped movable block (401) fit with the left and right ends of the inner walls of the two connecting grooves (102).

7. The transportable staircase for prefabricated buildings according to claim 4, characterized in that: The casting groove (103) and the filling groove (206) are interconnected; and the limiting block (203) and the limiting groove (304) are matched.

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