Prefabricated stair

Abstract

The utility model provides a prefabricated stairway, said prefabricated stairway includes prefabricated wall, prefabricated stairway and connecting subassembly, prefabricated wall is provided with first connecting part, prefabricated stairway includes platform and stair section, platform one end is connected with stair section, platform other end is connected with prefabricated wall, connecting subassembly is provided platform bottom, connecting subassembly includes body, and the body is connected with the first connecting part. The body is connected with the first connecting part through a bolt. The prefabricated stair has the advantages of being small in production difficulty, high in installation efficiency and the like.

Description

Technical Field

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

[0002] The construction industry is facing an increasingly tight labor demand, and prefabricated construction has become a trend. Currently, the installation of prefabricated staircases in prefabricated buildings requires prefabricated ladder beams on one or both sides. The production of prefabricated wall panels with ladder beams is complex, requiring complex mold design and manufacturing. Furthermore, the complex assembly process during on-site hoisting and installation results in low construction efficiency. Utility Model Content

[0003] The utility model provides a prefabricated staircase, which is used to solve the defects of the prior art such as great production difficulty and low construction efficiency, and realizes rapid production and installation of the prefabricated staircase.

[0004] The utility model provides a prefabricated staircase, comprising:

[0005] A prefabricated wall, wherein a first connecting portion is provided on the prefabricated wall;

[0006] A prefabricated staircase, comprising a platform and a flight of stairs, wherein one end of the platform is connected to the flight of stairs, and the other end of the platform is connected to the prefabricated wall;

[0007] A connecting assembly is arranged at the bottom of the platform, and the connecting assembly includes a main body, the main body is connected to the first connecting part by bolts, and the main body is fixedly connected to the platform.

[0008] In some embodiments, the first connecting portion includes a first sleeve, the body is provided with a second sleeve corresponding to the first sleeve, and the first sleeve and the second sleeve are both threadedly connected to the same bolt.

[0009] In some embodiments, a groove is provided on the side of the body facing away from the prefabricated wall, one end of the second sleeve is disposed in the groove, the bolt includes a head and a screw, the screw is threadedly connected to each of the first sleeve and the second sleeve, and the head is disposed in the groove.

[0010] In some embodiments, the connection assembly includes a blocking piece, which is disposed in the groove, and a surface of the blocking piece facing away from the prefabricated wall is flush with a surface of the body.

[0011] In some embodiments, a plurality of anchoring plates are embedded in both the first connecting portion and the body, the plurality of anchoring plates are arranged at intervals, and the anchoring plates are fixedly connected to the first sleeve or the second sleeve.

[0012] In some embodiments, the connecting assembly includes a pin, a matching hole is provided on the platform, one end of the pin is buried in the body, and the other end of the pin matches the matching hole.

[0013] In some embodiments, there are multiple pins and multiple matching holes, and the multiple matching holes are arranged in sequence along the width direction of the prefabricated stairs, and the multiple pins correspond to the multiple matching holes one by one.

[0014] In some embodiments, the first sleeve, the second sleeve and the bolt are each provided in plurality, the plurality of first sleeves, the plurality of second sleeves and the plurality of bolts correspond one to one, and the plurality of first sleeves are arranged at intervals along the width direction of the prefabricated staircase.

[0015] In some embodiments, a shock-absorbing plate is provided between the platform and the prefabricated wall, and the shock-absorbing plate is a polystyrene plate.

[0016] In some embodiments, an adhesive layer is provided between the main body and the prefabricated wall.

[0017] The prefabricated staircase implemented by the present invention is processed separately from the prefabricated wall. Compared with the prefabricated wall with ladder beams, the mold design is simple and the production difficulty is small. Only bolts are needed for assembly, which makes it easier for workers to install and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a cross-sectional diagram of the prefabricated staircase provided by the utility model.

[0020] Figure 2 It is a schematic structural diagram of the prefabricated staircase provided by the utility model from a top view.

[0021] Figure 3 It is a structural schematic diagram of a prefabricated wall of a prefabricated staircase provided by the utility model.

[0022] Figure 4 It is a structural schematic diagram of the connection components of the prefabricated staircase provided by the present invention.

[0023] Figure 5 It is a structural schematic diagram of the prefabricated staircase provided by the utility model.

[0024] Reference numerals:

[0025] 1. Connecting assembly; 11. Main body; 12. Second sleeve; 13. Groove; 14. Blocking member;

[0026] 2. Prefabricated wall; 21. First connecting portion; 22. First sleeve;

[0027] 3. Prefabricated stairs; 31. Platform; 311. Matching holes; 32. Stair flights;

[0028] 4. Bolt; 41. Head; 42. Screw; 5. Pin; 6. Anchor plate; 7. Shock absorber plate; 8. Mortar layer; 9. Adhesive layer. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figure 1-5 As shown, an embodiment of the present invention discloses a prefabricated staircase, which includes a prefabricated wall 2, a prefabricated staircase 3 and a connection assembly 1.

[0031] The prefabricated wall 2 is provided with a first connecting portion 21 .

[0032] The prefabricated staircase 3 includes a platform 31 and a stair run 32 . One end of the platform 31 is connected to the stair run 32 , and the other end of the platform 31 is connected to the prefabricated wall 2 .

[0033] The connecting assembly 1 is disposed at the bottom of the platform 31 . The connecting assembly 1 includes a main body 11 . The main body 11 is connected to the first connecting portion 21 via bolts 4 .

[0034] For ease of description, Figure 1 and Figure 2 The up-down, left-right, and front-back directions are marked in the middle.

[0035] The prefabricated wall 2, the prefabricated staircase 3 and the connecting assembly 1 are all prefabricated and can be assembled on the building. The prefabricated wall 2 is a plane wall and the connecting assembly 1 is located below the platform 31.

[0036] The left side of the platform 31 is connected to the prefabricated wall 2, and the right side of the platform 31 is connected to the staircase 32. The left side of the connecting assembly 1 is fixedly connected to the first connecting portion 21 of the prefabricated wall 2 by bolts 4.

[0037] The body 11 is fixedly connected to the platform 31 . For example, the body 11 and the platform 31 are connected via bolts 4 , or the body 11 and the platform 31 are connected via pins 5 .

[0038] The prefabricated staircase, prefabricated wall 2, prefabricated staircase 3 and connection assembly 1 implemented in the present invention are all processed in advance. During construction, they only need to be transported to the building for assembly, and there is no need to re-cast them on site, thereby improving construction efficiency.

[0039] Moreover, the prefabricated staircase 3 and the prefabricated wall 2 are processed separately. Compared with the prefabricated wall 2 with ladder beams, the mold design is simple and the production difficulty is small. Only bolts 4 are needed for assembly, which makes it easier for operators to install and improves construction efficiency.

[0040] Therefore, the prefabricated staircase implemented by the present invention has the advantages of low production difficulty and high installation efficiency.

[0041] In some embodiments, the first connecting portion 21 includes a first sleeve 22 , and the body 11 is provided with a second sleeve 12 corresponding to the first sleeve 22 . Both the first sleeve 22 and the second sleeve 12 are threadedly connected to the same bolt 4 .

[0042] For example, Figure 1 and Figure 2 As shown, when the prefabricated wall 2 and the connection assembly 1 are processed, the first sleeve 22 is fixedly set in the prefabricated wall 2 , and the second sleeve 12 is fixedly set on the body 11 .

[0043] During assembly, the first sleeve 22 and the second sleeve 12 can be arranged correspondingly in the left and right directions.

[0044] The first sleeve 22 and the second sleeve 12 are both provided with threads on their inner circumferences, so that the first sleeve 22 and the second sleeve 12 can be connected together using the same bolt 4, thereby fixing the connecting assembly 1 and the prefabricated wall 2 together, making the structure of the prefabricated staircase implemented by the present invention simple and easy to assemble.

[0045] In some embodiments, a groove 13 is provided on the side of the body 11 facing away from the prefabricated wall 2, one end of the second sleeve 12 is disposed in the groove 13, and the bolt 4 includes a head 41 and a screw 42, the screw 42 is threadedly connected to each of the first sleeve 22 and the second sleeve 12, and the head 41 is disposed in the groove 13.

[0046] For example, Figure 1 and Figure 2As shown, the side of the main body 11 facing away from the prefabricated wall 2 is the right side of the main body 11. A groove 13 is provided on the right side surface of the main body 11. The end surface of one end of the second sleeve 12 is flush with the wall surface of the groove 13. After the bolt 4 is matched with the first sleeve 22 and the second sleeve 12, the head 41 of the bolt 4 is set in the groove 13, and the head 41 of the bolt 4 is in contact with the wall surface of the groove 13.

[0047] In some embodiments, the connection assembly 1 includes a blocking member 14 . The blocking member 14 is disposed in the groove 13 , and a surface of the blocking member 14 facing away from the prefabricated wall 2 is flush with a surface of the body 11 .

[0048] For example, Figure 1 As shown, the groove 13 is filled with a blocking member 14 , which is cast with cement, or is made of other types of plates, such as a steel plate.

[0049] Optionally, a waterproof layer is provided on the wall surface where the sealing member 14 is connected to the groove 13, thereby preventing water flow or water mist from entering the first sleeve 22 or the second sleeve 12 through the gap between the sealing member 14 and the groove 13, thereby preventing the bolts 4 from rusting, and thereby improving the structural strength between the connecting assembly 1 and the prefabricated wall 2.

[0050] In some embodiments, a plurality of anchoring plates 6 are embedded in both the first connecting portion 21 and the body 11 . The plurality of anchoring plates 6 are arranged at intervals, and the anchoring plates 6 are fixedly connected to the first sleeve 22 or the second sleeve 12 .

[0051] like Figure 1 and Figure 2 As shown, multiple anchor plates 6 are arranged in sequence along the left-right direction, the first sleeve 22 is fixedly connected to the multiple anchor plates 6, and the second sleeve 12 is fixedly connected to the multiple anchor plates 6. For example, the first sleeve 22 and the second sleeve 12 are both welded to the anchor plates 6. Thus, the anchor plates 6 can strengthen the structural strength of the first sleeve 22 and the second sleeve 12, thereby strengthening the connection strength between the prefabricated wall 2 and the connection assembly 1.

[0052] Optionally, a plurality of anchoring ribs are provided near the anchoring plate 6 .

[0053] In some embodiments, the connecting assembly 1 includes a pin 5 , a matching hole 311 is provided on the platform 31 , one end of the pin 5 is buried in the body 11 , and the other end of the pin 5 matches with the matching hole 311 .

[0054] For example, Figure 1 As shown, a matching hole 311 extending in the up-down direction is provided on the platform 31 , the lower end of the pin 5 is buried in the body 11 , and the upper end of the pin 5 extends into the matching hole 311 .

[0055] The pin 5 can realize the positioning and connection between the connecting component 1 and the prefabricated staircase 3, effectively preventing the prefabricated staircase 3 from large displacement, and effectively ensuring the stability and safety of the connection part.

[0056] In some embodiments, there are multiple pins 5 and multiple matching holes 311, and the multiple matching holes 311 are arranged in sequence along the width direction of the prefabricated staircase 3, and the multiple pins 5 correspond to the multiple matching holes 311 one by one.

[0057] The width direction of the prefabricated staircase 3 is Figure 2 The plurality of pins 5 are sequentially spaced apart along the front-to-back direction. Thus, the positioning and connection between the connection assembly 1 and the prefabricated staircase 3 can be strengthened by using the plurality of pins 5.

[0058] Optionally, the fitting hole 311 is filled with sealing slurry, which can strengthen the connection between the pin 5 and the platform 31 on the one hand, and prevent the pin 5 from being corroded by water flow or water mist on the other hand.

[0059] In some embodiments, there are multiple first sleeves 22 , multiple second sleeves 12 and multiple bolts 4 , and the multiple first sleeves 22 , multiple second sleeves 12 and multiple bolts 4 correspond to each other one by one, and the multiple first sleeves 22 are arranged at intervals along the width direction of the prefabricated staircase 3 .

[0060] For example, Figure 1 and Figure 2 As shown, the width direction of the prefabricated staircase 3 is Figure 2 The first sleeve 22, second sleeve 12, and bolt 4 are arranged in two groups, spaced apart in the front-to-back direction. Each group contains four first sleeves 22, second sleeves 12, and bolts 4. The first sleeves 22, second sleeves 12, and bolts 4 are arranged in a 2×2 rectangular formation. Thus, the multiple first sleeves 22, second sleeves 12, and bolts 4 strengthen the connection between the connection assembly 1 and the prefabricated wall 2.

[0061] Optionally, the number of the first sleeve 22 , the second sleeve 12 and the bolts 4 is not limited, and they may be arranged in other forms, such as a 3×3 rectangular form.

[0062] In some embodiments, a shock-absorbing plate 7 is provided between the platform 31 and the prefabricated wall 2 , and the shock-absorbing plate 7 is a polystyrene board.

[0063] For example, Figure 1 As shown, polystyrene boards are filled between the platform 31 and the prefabricated wall 2 . The polystyrene boards are elastic, thereby improving the earthquake resistance of the prefabricated staircase 3 and the prefabricated wall 2 .

[0064] In some embodiments, a mortar layer 8 is provided between the platform 31 and the body 11 , so that the gap between the platform 31 and the body 11 can be filled with the mortar layer 8 .

[0065] In some embodiments, an adhesive layer 9 is provided between the body 11 and the prefabricated wall 2 , so that the adhesive layer 9 can seal the gap between the body 11 and the prefabricated wall 2 .

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A prefabricated staircase, characterized in that: include: A prefabricated wall, wherein a first connecting portion is provided on the prefabricated wall; A prefabricated staircase, comprising a platform and a flight of stairs, wherein one end of the platform is connected to the flight of stairs, and the other end of the platform is connected to the prefabricated wall; A connecting assembly is arranged at the bottom of the platform, and the connecting assembly includes a main body, the main body is connected to the first connecting part by bolts, and the main body is fixedly connected to the platform.

2. The prefabricated staircase according to claim 1, characterized in that: The first connecting portion includes a first sleeve, and the body is provided with a second sleeve corresponding to the first sleeve. The first sleeve and the second sleeve are both threadedly connected to the same bolt.

3. The prefabricated staircase according to claim 2, characterized in that: A groove is provided on the side of the body facing away from the prefabricated wall, one end of the second sleeve is arranged in the groove, the bolt includes a head and a screw, the screw is threadedly connected to each of the first sleeve and the second sleeve, and the head is arranged in the groove.

4. The prefabricated staircase according to claim 3, characterized in that: The connection assembly includes a blocking piece, which is arranged in the groove, and a surface of the blocking piece on a side facing away from the prefabricated wall is flush with a surface of the body.

5. The prefabricated staircase according to claim 2, characterized in that: A plurality of anchoring plates are embedded in both the first connecting portion and the main body. The plurality of anchoring plates are arranged at intervals, and the anchoring plates are fixedly connected to the first sleeve or the second sleeve.

6. The prefabricated staircase according to claim 2, characterized in that: The connecting assembly includes a pin, and a matching hole is provided on the platform. One end of the pin is buried in the body, and the other end of the pin matches with the matching hole.

7. The prefabricated staircase according to claim 6, characterized in that There are multiple pins and multiple matching holes, and the multiple matching holes are arranged in sequence along the width direction of the prefabricated stairs. The multiple pins correspond to the multiple matching holes one by one.

8. The prefabricated staircase according to claim 2, characterized in that: There are multiple first sleeves, multiple second sleeves and multiple bolts, and the multiple first sleeves, multiple second sleeves and multiple bolts correspond to each other one by one. The multiple first sleeves are arranged at intervals along the width direction of the prefabricated stairs.

9. The prefabricated staircase according to claim 1, characterized in that: A shock-absorbing plate is provided between the platform and the prefabricated wall, and the shock-absorbing plate is a polystyrene plate.

10. The prefabricated staircase according to claim 1, characterized in that: An adhesive layer is provided between the main body and the prefabricated wall.

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