Combined prefabricated stair mold with movable edge mold

By introducing a movable side mold and fastener design into the stair mold, the problems of narrow mold applicability and complex operation are solved, achieving efficient and stable stair production and reducing resource waste and operational difficulty.

CN224527541UActive Publication Date: 2026-07-21ANHUI FUHUANG CONSTR TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI FUHUANG CONSTR TECH CO LTD
Filing Date
2025-03-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing stair molds have low utilization efficiency and serious resource waste when producing staircases of different widths. Furthermore, adjusting the position of the side molds is cumbersome, affecting molding quality and operational difficulty.

Method used

A modular precast staircase mold with movable side molds is designed. By installing movable side molds between fixed side molds and fixing them with fasteners, the position of the side molds can be flexibly adjusted. Combined with the detachable structure of the front and rear end covers, the stability and convenience of the mold are ensured.

Benefits of technology

It improves the versatility and production efficiency of molds, reduces costs, simplifies the operation process, extends the service life of molds, and ensures molding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to stair section production mould technical field, especially a kind of combined prefabricated stair mould with moving side mould.It include: base, bottom die being arranged on the top of the base and fixed side mould being arranged on the both sides of the bottom die, still include: front end cap being arranged in the one end of the bottom die, rear end cap being arranged in the other end of the bottom die and moving side mould being arranged between the fixed side mould for limiting stair section width.The utility model provides a kind of combined prefabricated stair mould with moving side mould with the advantages such as high work efficiency, wide application range, high universality, long service life, simple structure and easy disassembly.
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Description

Technical Field

[0001] This utility model relates to the field of staircase production mold technology, and in particular to a combined prefabricated staircase mold with movable side mold. Background Technology

[0002] With existing technology, prefabricated stairs with the same tread height, width, and number of steps can be produced using a single set of stair molds. However, stairs with the same tread height, width, and number of steps but different stair flight widths cannot be prefabricated using the same mold. Prefabricated public buildings have a wide variety of stair specifications and models, and the number of each specification is small. The inability to produce stairs using the same mold reduces the efficiency of mold utilization. In extreme cases, a single set of stair molds may only produce one flight of stairs, resulting in a huge waste of resources.

[0003] Chinese patent CN204725635U discloses a staircase mold, including a base, a step assembly, and at least two side molds. The step assembly is disposed on the base, and at least one side mold is disposed on the upper surface of the step assembly, with the distance between adjacent side molds being adjustable. This staircase mold, because at least one side mold can move on the upper surface of the step panel, can be used to cast staircases of different sizes and specifications. When the width of the staircase changes, casting can be performed simply by moving the side mold. Therefore, it can be used for multiple purposes, improving mold efficiency. It has the advantages of simple structure, low production and usage costs, and strong versatility.

[0004] However, since both side molds are adjustable and detachable, the overall structural strength of this technical solution may not be as good as that of a fixed mold. Especially after multiple disassemblies and reassemblies, the connection parts may become loose or deformed, which may affect the molding quality of concrete during the pouring process, or even cause the mold to deform or be damaged during use. In actual construction, frequent adjustments to the position of the side molds may increase the difficulty of operation, especially when precise adjustments are required, which may require more time and manpower. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a modular precast stair mold with a movable side mold. By installing a movable side mold between two fixed side molds, the movable side mold can be adjusted in position as needed to adapt to stair sections of different widths, thereby improving the versatility and flexibility of the mold.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A modular precast stair mold with movable side molds includes: a base, a bottom mold disposed above the base, and fixed side molds disposed on both sides of the bottom mold. It also includes: a front end cover disposed at one end of the bottom mold, a rear end cover disposed at the other end of the bottom mold, and movable side molds disposed between the fixed side molds for defining the width of the stair flight.

[0007] Preferably, the movable side mold is fixedly connected to the bottom mold by a plurality of first fasteners.

[0008] Preferably, the bottom mold is provided with a plurality of fixing holes adapted to the first fastener, and the fixing holes are distributed in groups.

[0009] Preferably, the front end cover includes: a front end plate fixedly connected to the first end of the bottom mold and a front cover plate disposed on one side of the front end plate.

[0010] Preferably, the front end plate and the bottom mold are fixedly connected by a number of second fasteners.

[0011] Preferably, the front cover plate and the movable side mold are fixedly connected by a third fastener.

[0012] Preferably, the rear end cover includes: a rear end plate disposed at the end of the bottom mold and a rear cover plate disposed on one side of the rear end plate.

[0013] Preferably, the rear end plate and the bottom mold are fixedly connected by a fourth fastener.

[0014] Preferably, the rear cover plate and the movable side mold are fixedly connected by a fifth fastener.

[0015] Preferably, both the front cover and the rear cover are L-shaped.

[0016] The beneficial effects of this utility model are as follows: (1) By setting multiple sets of fixing holes on the bottom mold, the position of the movable side mold can be adjusted according to the width of different stair sections, thereby ensuring that the same set of molds can be used to produce staircases of various sizes. It has a wide range of applications and only requires the installation and disassembly of the movable side mold, saving the time of mold replacement, reducing costs, and improving production efficiency.

[0017] (2) The present invention uses several fasteners to fix the movable side mold on the bottom mold, so that the overall structure of the mold is simple, easy to disassemble and assemble, and does not require a lot of manpower and material resources.

[0018] (3) The present invention uses the front and rear end caps as detachable structures and the movable side mold is installed and fixed in a secondary manner to further ensure the stability and firmness of the movable side mold. The detachable structure can be easily reassembled or adjusted as needed to adapt to different functional requirements or spatial layouts.

[0019] In summary, this utility model has the advantages of high work efficiency, wide applicability, high versatility, long service life, simple structure, and convenient assembly and disassembly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 for Figure 1 Enlarged view of point B; Figure 4 This is a schematic diagram of the structure of the present invention after removing the movable side mold; Figure 5 This is a top view of the present invention. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] Example like Figure 1-5As shown, this embodiment provides a combined precast stair mold with movable side molds, including: a base 1, a bottom mold 2 disposed above the base 1, and fixed side molds 3 disposed on both sides of the bottom mold 2. It also includes: a front end cover 4 disposed at one end of the bottom mold 2, a rear end cover 5 disposed at the other end of the bottom mold 2, and a movable side mold 6 disposed between the fixed side molds 3 for limiting the width of the stair flight. The design of the movable side mold 6 allows the mold to be adjusted according to different stair widths, thereby realizing that one mold is suitable for the production of staircases of various specifications, greatly reducing the types and quantities of molds, improving the versatility of molds, reducing the procurement and management costs of molds, and eliminating the need for frequent disassembly and reinstallation, thus reducing the time and labor intensity of mold adjustment.

[0024] The movable side mold 6 is cut and shaped according to the step shape, and the step forming surface of the bottom mold 2 is adjusted accordingly according to different staircase widths.

[0025] Meanwhile, the movable side mold 6 is fixedly connected to the bottom mold 2 by a number of first fasteners 61, preferably bolts, which are convenient for disassembly and assembly.

[0026] The bottom mold 2 is provided with a number of fixing holes 21 that are adapted to the first fastener 61. The fixing holes 21 are distributed in groups and correspond to different widths of ladder segments, which has a wide range of applications.

[0027] In this embodiment, when producing stairs with the largest staircase width, the movable side mold 6 is removed and directly limited by the fixed side molds 3 on both sides of the bottom mold 2; when producing stairs with other staircase widths, a set of movable side mold 6 fixing holes 21 are selected according to the staircase width and the direction of going upstairs, and the movable side mold 6 is installed and fixed on the bottom mold 2.

[0028] In this embodiment, the front cover 4 includes: a front plate 41 fixedly connected to the first end of the bottom mold 2 and a front cover plate 42 disposed on one side of the front plate 41, so that the front cover 4 is a detachable structure and can be disassembled into smaller parts during transportation or storage, greatly reducing the volume and thus saving transportation and storage space. Furthermore, due to the reduction in volume and weight, transportation and warehousing costs will also be reduced accordingly.

[0029] In this embodiment, the front end plate 41 is fixedly connected to the bottom mold 2 by a number of second fasteners 43, and the front cover plate 42 is fixedly connected to the movable side mold 6 by a third fastener 44. The fixing effect is good, making the entire mold structure more stable and firm, and extending the service life of the mold.

[0030] In this embodiment, the rear end cover 5 includes: a rear end plate 51 disposed at the end of the bottom mold 2 and a rear cover plate 52 disposed on one side of the rear end plate 51. That is, the rear end cover 5 is a detachable structure that can be easily reassembled or adjusted as needed to adapt to different functional requirements or spatial layouts.

[0031] In this embodiment, the rear end plate 51 and the bottom mold 2 are fixedly connected by the fourth fastener 53, so that the connection between the rear end plate 51 and the bottom mold 2 is firm and stable, and there will be no loosening or other situations that would cause the produced ladder sections to be unqualified.

[0032] Of course, the rear cover plate 52 and the movable side mold 6 are fixedly connected by the fifth fastener 54, so that the connection between the rear cover plate 52 and the movable side mold 6 is firm and stable, and there will be no loosening or other situations that would cause the produced ladder section to be unqualified, thus further ensuring the stability and firmness of the movable side mold 6.

[0033] In addition, both the front cover 4 and the rear cover 5 are L-shaped, and their installation orientation corresponds to the uphill direction of the stair section, so that the moving side mold 6 can be stable and firm and will not be offset, thereby ensuring that the processed stair section meets the actual requirements.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular precast staircase mold with movable side molds, comprising: The base, the bottom mold disposed above the base, and the fixed side molds disposed on both sides of the bottom mold are characterized in that they further include: a front end cover disposed at one end of the bottom mold, a rear end cover disposed at the other end of the bottom mold, and a movable side mold disposed between the fixed side molds for limiting the width of the stair flight. The front end cover includes: a front end plate fixedly connected to the first end of the bottom mold and a front cover plate disposed on one side of the front end plate. The front end plate is fixedly connected to the bottom mold by a plurality of second fasteners, and the front cover plate is fixedly connected to the movable side mold by a third section of fasteners. The rear end cover includes: a rear end plate disposed at the end of the bottom mold and a rear cover plate disposed on one side of the rear end plate. The rear end plate is fixedly connected to the bottom mold by a fourth fastener, and the rear cover plate is fixedly connected to the movable side mold by a fifth fastener. Both the front cover and the rear cover are L-shaped.

2. The combined precast staircase mold with movable side mold according to claim 1, characterized in that, The movable side mold is fixedly connected to the bottom mold by a number of first fasteners.

3. A combined precast staircase mold with movable side mold according to claim 2, characterized in that, The bottom mold is provided with a plurality of fixing holes that are adapted to the first fastener, and the fixing holes are distributed in groups.