Adjustable prefabricated stair mold

Abstract

The utility model relates to the field of pouring molds, and discloses an adjustable prefabricated stair mold which comprises a lower mold plate, a supporting side plate, a stepping mold plate and end baffles, the lower mold plate is horizontally arranged, the supporting side plate and the stepping mold plate are oppositely arranged, and the end baffles are connected to the two ends of the supporting mold plate and the two ends of the stepping mold plate. The supporting side plate, the stepping formwork and the two end baffles are encircled to form a stair shape, the stepping formwork comprises a supporting rod and a plurality of stepping ladder pedals installed on the supporting rod, a plurality of adjusting holes are machined in the supporting rod in the length direction, the stepping ladder pedals are sequentially connected and sequentially hinged into the corresponding adjusting holes, and the adjusting holes are formed in the supporting rod. Locking pull rods are connected between the supporting side plates and the supporting rods, and ejector blocks for supporting step ladder pedals are further installed on the supporting side plates. According to the stair mould, corresponding mould shapes can be quickly built according to stairs of different specifications, and then the building efficiency of the stairs is improved.

Description

Technical Field

[0001] This utility model relates to the field of casting molds, and in particular to an adjustable precast stair mold. Background Technology

[0002] Precast stairs have emerged in recent years due to the rapid development of the construction industry. Compared with traditional cast-in-place concrete stairs, they eliminate the need for on-site mold making, greatly increasing the construction speed. However, most existing precast stairs have uniform dimensions, making them non-adjustable and ultimately resulting in high mold manufacturing costs. Therefore, there is a need for an easily adjustable stair mold to improve its versatility and reduce its usage costs. Utility Model Content

[0003] The purpose of this utility model is to solve the problems in the background technology and provide an adjustable prefabricated staircase mold.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An adjustable precast stair mold includes a lower template, supporting side plates, step templates, and end baffles. The lower template is horizontally positioned, while the supporting side plates and step templates are positioned opposite each other. The end baffles are connected to both ends of the supporting template and the step templates. The supporting side plates, step templates, and two end baffles together form a staircase shape. The end baffles are U-shaped. The bottom surface of the supporting side plate connected to the upper floor slab has outwardly extending connecting ears. The adjacent end baffle has extending fixing ears. A sleeve tie rod is installed between the fixing ears and the connecting ears. The step template includes a support rod and multiple step treads installed on the support rod. The support rod has multiple adjustment holes along its length. The multiple step treads are connected sequentially and hinged sequentially in the corresponding adjustment holes. A locking tie rod is connected between the supporting side plate and the support rod. A top block supporting the step treads is also installed on the supporting side plate.

[0006] The stair treads are hollow right-angled trapezoids. Locking bolts are installed on the long side of the stair treads, and strip holes aligned with the locking bolts are machined on the short side of the stair treads.

[0007] The end baffle includes two parallel layers and a baffle strip connecting the layers. The end of the layer connected to the step template is rectangular, and the end face of the layer connected to the support side plate is triangular. A connecting plate that abuts against the surface of the support side plate is installed on the layer.

[0008] The sleeve tie rod includes a hollow threaded tube and threaded rods threaded to both ends of the hollow threaded tube, with the thread directions at both ends of the hollow threaded tube being opposite.

[0009] The adjustable prefabricated staircase mold provided by this utility model has the following advantages:

[0010] (1) With the adjustable mold, the corresponding mold shape can be quickly built according to different specifications of stairs, thereby improving the construction efficiency of stairs. In addition, this mold can be interchanged left and right.

[0011] (2) By setting support rods and multiple independent stair treads, the length of stair treads can be assembled on-site according to the specifications of the staircase, thereby improving the adaptability of the staircase mold.

[0012] (3) By setting end baffles and connecting the rectangular end to the step template, the horizontal and vertical of the stair treads can be guaranteed. By connecting the triangular end to the support treads, the parameters and dimensions of the stair can be easily adjusted. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural schematic diagram provided for an embodiment of the present utility model.

[0015] Figure 2 An exploded view provided for an embodiment of this utility model.

[0016] Figure 3 A schematic diagram of the structure of the step tread provided in an embodiment of this utility model.

[0017] Figure 4 This utility model provides a schematic diagram of the structure of the end baffle.

[0018] Figure 5 This utility model provides a schematic diagram of its usage status.

[0019] Reference numerals: 1. Lower template; 2. Supporting side plate; 21. Connecting ear; 22. Top block; 3. Step template; 31. Support rod; 32. Step tread; 33. Locking bolt; 34. Strip hole; 35. Adjustment hole; 4. End baffle; 41. Shelf; 42. Stop bar; 43. Rectangle; 44. Triangle; 45. Fixing ear; 46. Connecting plate; 5. Sleeve tie rod; 6. Locking tie rod. Detailed Implementation

[0020] Example

[0021] like Figures 1-5As shown, the adjustable precast stair mold provided in this embodiment includes a lower template 1, supporting side plates 2, step templates 3, and end baffles 4. The lower template 1 is horizontally arranged, and the supporting side plates 2 and step templates 3 are arranged opposite to each other. The end baffles 4 are connected to both ends of the supporting templates and step templates 3. The supporting side plates 2, step templates 3, and two end baffles 4 together form a stair shape. The end baffles 4 are U-shaped. The bottom surface of the supporting side plates 2, which connect to the upper floor slab, is machined with outwardly extending connecting ears 21. The adjacent end baffles 4 have extending fixing ears 45. A sleeve tie rod 5 is installed between the fixing ears 45 and the connecting ears 21. The sleeve tie rod 5 includes a hollow threaded tube and threaded rods connected to both ends of the hollow threaded tube. The thread directions at both ends of the hollow threaded tube are opposite. By rotating the hollow threaded tube, the stair mold can be adjusted. The length of the sleeve tie rod 5 is adjusted to change the angle between the end baffle 4 and the support side plate 2, so as to accommodate various floor height variations. The step template 3 includes a support rod 31 and multiple step treads 32 installed on the support rod 31. The support rod 31 has multiple adjustment holes 35 along its length. The multiple step treads 32 are connected in sequence and hinged in the corresponding adjustment holes 35. The step treads 32 are hollow right trapezoids. Locking bolts 33 are installed on the long side of the step treads 32, and strip holes 34 aligned with the locking bolts are machined on the short side of the step treads 32. A locking tie rod 6 is connected between the support side plate 2 and the support rod 31. A top block 22 supporting the step treads 32 is also installed on the support side plate 2. The thickness of the staircase can be adjusted by the cooperation of the locking tie rod 6 and the top block 22.

[0022] To accommodate staircases of different sizes, such as Figure 4 As shown, the end baffle 4 includes two parallel layers 41 and a baffle strip 42 connecting the layers 41. The end of the layer 41 connected to the step template 3 is rectangular 43, and the end face of the layer 41 connected to the support side plate 2 is triangular 44. The triangular layer 41 can adapt to multiple angles of contact with the support side plate 2, and thus can adapt to layers 41 of various heights and distances. A connecting plate 46 that abuts against the surface of the support side plate 2 is installed on the layer 41.

[0023] The method of using this utility model is as follows:

[0024] In use, first fix the lower template 1 horizontally, then vertically install the support side plate 2 on the lower template 1. Next, use the sleeve tie rod 5 to adjust the angle of the end baffle 4 at the top of the support side plate 2 at the highest point of the stairs. After adjustment, install the step template 3. During installation, hinge the corresponding number of stair treads 32 into the adjustment holes 35 on the support rod 31 in sequence. Then connect the shelf 41 with the adjacent stair treads 32 in sequence. After assembly, since the stair treads are trapezoidal and the shelf 41 in contact with them is rectangular 43, the verticality of the tread surface can be guaranteed. Next, adjust the distance between the support rod 31 and the support side plate 2 to adjust the thickness of the stairs. After adjustment, tighten the locking bolt 33. Then, contact the short baffle at the lowest point of the stairs with the support side plate 2 to assemble a closed mold. Finally, after placing the reinforcing bars in the mold cavity, use the top block 22 and the locking tie rod 6 to fix the mold. Figure 5 As shown, the final pouring operation is carried out. The adjustable staircase mold disclosed in this patent can adapt to the pouring of precast staircases of various specifications, thereby improving the adaptability of the mold and reducing the manufacturing cost of fixed molds.

[0025] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by this utility model should be covered within the protection scope of this utility model. It should be noted that the structures or components illustrated in the accompanying drawings are not necessarily drawn to scale, and descriptions of well-known components, processing technologies, and processes are omitted to avoid unnecessarily limiting this utility model.

Claims

1. An adjustable prefabricated staircase mold, characterized in that: The system includes a lower template (1), supporting side plates (2), step templates (3), and end baffles (4). The lower template (1) is horizontally arranged, and the supporting side plates (2) and step templates (3) are arranged opposite to each other. The end baffles (4) are connected to both ends of the supporting templates and step templates (3). The supporting side plates (2), step templates (3), and two end baffles (4) together form a staircase shape. The end baffles (4) are U-shaped. The bottom surface of the supporting side plates (2) that connect to the upper floor slab is machined with outwardly extending connecting ears (21), and the adjacent end baffles (4) have extending fixing ears (45). A sleeve tie rod (5) is installed between the fixing ear (45) and the connecting ear (21). The step template (3) includes a support rod (31) and multiple step treads (32) installed on the support rod (31). The support rod (31) has multiple adjustment holes (35) processed along its length. The multiple step treads (32) are connected in sequence and hinged in the corresponding adjustment holes (35). A locking tie rod (6) is connected between the support side plate (2) and the support rod (31). A top block (22) supporting the step treads (32) is also installed on the support side plate (2).

2. The adjustable prefabricated staircase mold according to claim 1, characterized in that: The step tread (32) is a hollow right trapezoid. A locking bolt (33) is installed on the long side of the step tread (32), and a strip hole (34) aligned with the locking bolt is machined on the short side of the step tread (32).

3. The adjustable prefabricated staircase mold according to claim 1, characterized in that: The end baffle (4) includes two parallel layer plates (41) and a baffle strip (42) connecting the layer plates (41). The end of the layer plate (41) connected to the step template (3) is rectangular (43), and the end face of the layer plate (41) connected to the support side plate (2) is triangular (44). A connecting plate (46) that abuts against the surface of the support side plate (2) is installed on the layer plate (41).

4. The adjustable prefabricated staircase mold according to claim 1, characterized in that: The sleeve tie rod (5) includes a hollow threaded tube and a screw tie rod threaded to both ends of the hollow threaded tube, wherein the thread directions at both ends of the hollow threaded tube are opposite.

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