Prefabricated spliced step unit and step ladder with same

Abstract

The utility model relates to a prefabricated spliced step unit and a step ladder with the same, the prefabricated spliced step unit comprises: a main body, a pouring horizontal plate, a pouring vertical plate and a pouring baffle, the main body is composed of a tread plate and a kick plate arranged vertically, the pouring horizontal plate and the pouring vertical plate are fastened to the kick plate to form pouring channels, the pouring baffle is arranged on the bottom surface of the tread plate, and the pouring baffle blocks the two ends of the pouring channels of the steps below during splicing to form a closed grouting space. Grouting material is injected through the grouting holes on the pouring baffle, the grouting material fills the pouring channels and discharges excess gas from the overflow holes and overflow through holes, and the adjacent steps are firmly connected after solidification. The utility model reduces the complexity of on-site construction, reduces the construction difficulty, shortens the construction period, and solves the technical problems of complex construction, long construction period and insecure connection between steps of traditional stair steps.

Description

Technical Field

[0001] This utility model relates to the field of building materials technology, and more specifically to a prefabricated splicing step unit and a staircase having the same. Background Technology

[0002] In existing technologies and traditional building construction, stair treads are mostly cast-in-place. This method requires erecting formwork on-site, pouring concrete into the formwork, and waiting for it to solidify. For example, in the construction of a staircase in a large commercial building, casting stair treads on-site requires a significant amount of time for installing and removing formwork. Furthermore, the concrete curing time is relatively long, generally requiring about 28 days to reach its design strength, which greatly extends the construction period.

[0003] Traditional single-step treads, with no interconnection between multiple steps, are often supported by a base of sand or cement. If the base collapses, the steps will separate due to the lack of connecting parts.

[0004] Therefore, how to provide a new prefabricated splicing step unit and a staircase with it, which can be spliced ​​in multiple stages while the connection between the two stages can be locked between adjacent stages by grouting, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a prefabricated splicing step unit and a step ladder having the same, aiming to solve the technical problem that the traditional single steps separate after the bottom support collapses due to the lack of a tight connection between them.

[0006] A prefabricated modular step unit, comprising:

[0007] The main body includes a vertically arranged pedal and a kick plate, with the pedal and the bottom of the first surface of the kick plate being vertically arranged and fastened together.

[0008] A horizontal slab and a vertical slab are poured. The first end of the horizontal slab is arranged perpendicularly to the second surface of the kick plate and is fastened. The vertical slab is arranged opposite to the second surface of the kick plate, and its bottom end is fastened to the second end of the horizontal slab. A pouring channel is formed between the opposite surfaces of the vertical slab and the second surface of the kick plate and the upper surface of the horizontal slab.

[0009] Two pouring baffles are arranged at intervals on the bottom surface of the tread away from the pouring slab, with the interval being the length of the pouring channel.

[0010] Through the above technical solution, this utility model has a casting horizontal plate and a casting vertical plate fastened to the second plate surface of the kick plate, forming a casting channel between the three. A casting baffle for sealing the two ends of the casting channel is fastened to the bottom surface of the tread. During the splicing of the two steps, a closed casting space is formed at the connection point, and grout can be poured inside to achieve the connection between the two steps. It has the characteristics of simple assembly and firm connection.

[0011] Preferably, grouting holes are provided on the pouring baffle.

[0012] Preferably, it also includes a connecting plate, the surface of which is arranged parallel to the kick plate and is securely connected to the bottom surface of the tread, and two pouring baffles are securely connected to both ends of the connecting plate.

[0013] Preferably, the distance L between the connecting plate and the end of the pedal furthest from the kick plate corresponds to the thickness D of the kick plate.

[0014] Preferably, the first surface of the kick plate is provided with an overflow hole at the position corresponding to the pouring channel, and the connecting plate is provided with an overflow through hole arranged corresponding to the overflow hole.

[0015] Preferably, the overflow hole is a flared hole, and the diameter of the hole gradually decreases from the first plate surface to the second plate surface.

[0016] Preferably, there are multiple overflow holes and overflow passages, which are evenly arranged along the length of the kick plate.

[0017] Preferably, the diameter of the grouting hole is larger than the diameter of the overflow hole.

[0018] Preferably, the surface area of ​​the casting baffle is larger than the cross-sectional area of ​​the casting channel.

[0019] A staircase includes prefabricated spliced ​​step units arranged in sequence. When two adjacent prefabricated spliced ​​step units are joined together, the two pouring baffles corresponding to the upper prefabricated spliced ​​step unit respectively block the two ends of the pouring channel corresponding to the lower prefabricated spliced ​​step unit.

[0020] As can be seen from the above technical solution, compared with the prior art, the present utility model discloses a prefabricated splicing step unit and a step ladder having the same, which has the following beneficial effects: the prefabricated splicing design reduces the complexity of on-site construction and reduces the difficulty of construction; the prefabricated structure reduces the time for on-site formwork erection and dismantling and shortens the construction cycle. Attached Figure Description

[0021] Figure 1 A three-dimensional schematic diagram of a prefabricated splicing step unit provided by this utility model;

[0022] Figure 2A three-dimensional schematic diagram of a prefabricated splicing step unit provided by this utility model from another perspective;

[0023] Figure 3 A partial sectional view of a step ladder provided by this utility model;

[0024] Figure 4 for Figure 3 A magnified view of a section at point A.

[0025] Wherein: 1-Main body; 3-Pouring baffle; 4-Connecting plate; 11-Pedal; 12-Kick plate; 20-Pouring channel; 21-Pouring horizontal plate; 22-Pouring vertical plate; 31-Grouting hole; 41-Overflow through hole; 121-Overflow hole. Detailed Implementation

[0026] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0027] See appendix Figure 1-2 This utility model discloses a prefabricated splicing step unit, including: a main body 1, a cast horizontal plate 21, a cast vertical plate 22 and a cast baffle 3;

[0028] The main body 1 includes a vertically arranged pedal 11 and a kick plate 12. The pedal 11 and the bottom of the first plate surface of the kick plate 12 are arranged vertically and fastened together.

[0029] The first end of the casting horizontal plate 21 is arranged perpendicularly to the second plate surface of the kick plate 12 and is fastened. The casting vertical plate 22 is arranged opposite to the second plate surface, and its bottom end is fastened to the second end of the casting horizontal plate 21. A casting channel 20 is formed between the opposite surfaces of the casting vertical plate 22 and the second plate surface and the upper plate surface of the casting horizontal plate 21.

[0030] Two pouring baffles 3 are arranged at intervals on the bottom surface of the tread plate 11 away from the pouring upright plate 22, and the interval is the length of the pouring channel 20.

[0031] In some embodiments, the pouring baffle 3 is provided with grouting holes 31. Thus, the design of the grouting holes 31 allows the grouting material to be directly injected into the pouring channel 20, simplifying the construction process.

[0032] In other embodiments, a connecting plate 4 is also included, the surface of which is arranged parallel to the kick plate 12 and is fastened to the bottom surface of the pedal 11, and two pouring baffles 3 are fastened to both ends of the connecting plate 4 respectively.

[0033] In one embodiment, the distance L between the connecting plate 4 and the end of the pedal 11 away from the kick plate 12 corresponds to the thickness D of the kick plate 12. Thus, after two adjacent steps are joined together, the end face of the pedal 11 corresponding to the upper step away from the kick plate 12 remains flush with the first surface of the kick plate 12 corresponding to the lower step.

[0034] In one embodiment, the first surface of the kick plate 12 is provided with an overflow hole 121 corresponding to the position of the pouring channel 20, and the connecting plate 4 is provided with an overflow through hole 41 arranged corresponding to the overflow hole 121. Thus, the design of the overflow hole 121 and the overflow through hole 41 ensures the uniform distribution of grout, avoids the generation of air bubbles, improves the filling effect of grouting, and enhances the connection strength between adjacent steps.

[0035] In this embodiment, the overflow hole 121 is a trumpet-shaped hole, and the diameter of the hole gradually decreases from the first plate surface to the second plate surface. Thus, the design of the trumpet-shaped hole allows the grout solidified between the overflow hole 121 and the overflow through hole 41 to securely connect the kick plate 12 and the connecting plate corresponding to the two adjacent steps, thereby improving the connection stability of adjacent steps.

[0036] In some embodiments, there are multiple overflow holes 121 and overflow through holes 41, which are evenly arranged along the length of the kick plate 12. Thus, the uniform arrangement of multiple overflow holes 121 and overflow through holes 41 ensures the uniform distribution of grouting material and avoids localized insufficient filling.

[0037] In some specific embodiments, the diameter of the grouting hole 31 is larger than the diameter of the overflow through hole 41.

[0038] In some embodiments, the surface area of ​​the pouring baffle 3 is larger than the cross-sectional area of ​​the pouring channel 20. This larger surface area ensures the sealing of both ends of the pouring channel 20, preventing grout leakage.

[0039] In some specific embodiments, the surface of the casting slab 22 is arranged at an angle to the second slab surface. This angled arrangement of the casting slab 22 optimizes the flow path of the grout and ensures uniform filling.

[0040] See appendix Figure 3-4 A staircase, characterized in that it includes the aforementioned prefabricated spliced ​​step units arranged in sequence, wherein when two adjacent prefabricated spliced ​​step units are joined together, the two pouring baffles 3 corresponding to the upper prefabricated spliced ​​step unit respectively block both ends of the pouring channel 20 corresponding to the lower prefabricated spliced ​​step unit.

[0041] Specifically, when two adjacent prefabricated step units are joined, the connecting plate 4 corresponding to the upper prefabricated step unit is attached to the second plate surface corresponding to the lower prefabricated step unit.

[0042] The specific principle and usage method of the prefabricated spliced ​​step unit and the step ladder having it provided in this embodiment are as follows:

[0043] 1. The prefabricated steps are spliced ​​together step by step. The pouring baffle 3 of the upper prefabricated splicing step unit is aligned with both ends of the pouring channel 20 of the lower prefabricated splicing step unit. The connecting plate 4 of the upper prefabricated splicing step unit is attached to the second plate surface of the lower prefabricated splicing step unit to form a closed grouting space.

[0044] 2. Grouting material is injected through the grouting hole on the casting baffle 3. The grouting material fills the casting channel 20 and the excess gas is discharged through the overflow hole 41 and overflow hole 121. Finally, the grouting material fills the overflow hole 41 and overflow hole 121.

[0045] 3. Use a scraper to scrape and remove excess grout from overflow hole 121 to complete the connection between two adjacent precast splicing step units.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A prefabricated spliced step unit, characterized in that, include: The main body (1) includes a vertically arranged pedal (11) and a kick plate (12), wherein the pedal (11) and the bottom end of the first plate surface of the kick plate (12) are arranged vertically and fastened together; A horizontal slab (21) and a vertical slab (22) are cast. The first end of the horizontal slab (21) is arranged perpendicularly to the second surface of the kick plate (12) and is fastened. The vertical slab (22) is arranged opposite to the second surface and its bottom end is fastened to the second end of the horizontal slab (21). A casting channel (20) is formed between the opposite surface of the vertical slab (22) and the second surface and the upper surface of the horizontal slab (21). The two pouring baffles (3) are arranged at intervals on the bottom surface of the tread (11) away from the pouring upright plate (22), and the interval distance is the length of the pouring channel (20).

2. The prefabricated spliced step unit according to claim 1, characterized in that, Grouting holes (31) are provided on the pouring baffle (3).

3. The prefabricated spliced step unit according to claim 2, wherein, It also includes a connecting plate (4), the surface of which is arranged parallel to the kick plate (12) and is fastened to the bottom surface of the pedal (11), and the two pouring baffles (3) are fastened to the two ends of the connecting plate (4).

4. The prefabricated spliced step unit as claimed in claim 3, wherein, The distance L between the connecting plate (4) and the end of the pedal (11) away from the kick plate (12) corresponds to the thickness D of the kick plate (12).

5. The prefabricated spliced step unit as claimed in claim 3, wherein, An overflow hole (121) is provided on the first plate surface of the kick plate (12) at the position corresponding to the pouring channel (20), and an overflow through hole (41) is provided on the connecting plate (4) corresponding to the overflow hole (121).

6. The prefabricated spliced step unit as claimed in claim 5, wherein, The overflow hole (121) is a horn hole, and the diameter of the hole gradually decreases from the first plate surface to the second plate surface.

7. The prefabricated spliced step unit as claimed in claim 6, wherein, The number of overflow holes (121) and overflow through holes (41) is multiple, and they are evenly arranged along the length direction of the kick plate (12).

8. The prefabricated spliced step unit as claimed in claim 7, wherein, The diameter of the grouting hole (31) is larger than the diameter of the overflow hole (41).

9. The prefabricated spliced step unit as claimed in claim 1, wherein, The surface area of ​​the casting baffle (3) is greater than the cross-sectional area of ​​the casting channel (20).

10. A stairway characterized in that It includes a plurality of prefabricated splicing step units according to any one of claims 1 to 9 arranged in sequence. When two adjacent prefabricated splicing step units are connected, the two pouring baffles (3) corresponding to the upper prefabricated splicing step unit respectively block the two ends of the pouring channel (20) corresponding to the lower prefabricated splicing step unit.

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