Adjustable beam for balcony slab of low-multilayer box-type concrete structure house and mold of adjustable beam

Abstract

The invention relates to the technical field of concrete balcony production, and discloses a low multi-layer box-type concrete structure house balcony plate adjustable beam and a mold thereof, the low multi-layer box-type concrete structure house balcony plate adjustable beam comprises a mold bottom plate, and the mold bottom plate is composed of two bottom layer modules which can be interchanged and spliced; the flat plate module is used for forming the bottom of the plate body part of the prefabricated part; the beam groove module is provided with a concave groove body and used for forming the bottom of the beam body part of the prefabricated balcony part; the coaming modules are arranged on the periphery of the mold bottom plate, and an integrated mold cavity used for pouring concrete is defined by the coaming modules and the mold bottom plate; and the adjusting module is arranged at the top of the mold bottom plate. The position of the cross beam is adjusted through the replaceable low-cost adjusting module, multiple sets of expensive molds do not need to be customized for different specifications, and the production cost is remarkably reduced. Meanwhile, due to the high production flexibility, the individual requirement of the market for the large-span wide balcony can be rapidly met, and the market competitiveness of products and the economic benefits of enterprises are improved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete balcony production, in particular to an adjustable beam for a balcony slab of a low-rise and multi-story box-type concrete structure house and a mould thereof. Background Art

[0002] Precast concrete components are now widely used in the construction of low-rise, box-type concrete structures. Balcony slabs, as key external projecting components, are crucial for their standardized production and installation efficiency, directly impacting the overall project cost and schedule.

[0003] Regarding the aforementioned issues, existing balcony slab prefabrication typically utilizes fixed, monolithic molds. For spans under 1.2 meters, the slab is typically produced as a pure cantilever structure without beams. As balcony spans increase, longitudinal cantilever beams are added to both sides of the slab. These production methods utilize fixed mold dimensions, allowing only one set of molds to produce a single size of balcony slab. Prefabrication of horizontal beams and adjustment of beam position are not possible.

[0004] However, this production model, which relied on fixed-size molds, exposed numerous problems. First, the molds' versatility was extremely limited. Every time an order required a different overhang size or beam position, the factory had to reinvest in the design and manufacture of a completely new set of steel molds. This significantly extended the production lead time. Faced with diverse market demands, the company's responsiveness was severely limited. The amortized cost of manufacturing specialized molds to meet a small number of non-standard orders was extremely high, making it completely uneconomical. More critically, existing technology had inherent structural limitations. It was unable to produce wide, long-span balconies with central reinforcement beams. This not only posed a structural safety hazard for spans exceeding 1.5 meters, but also directly prevented the company from accepting orders from such customers, resulting in the loss of important business opportunities in the market and impacting overall profitability. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides an adjustable beam for balcony slabs of low-rise box-type concrete structure houses and its mold, which solves the problems of poor versatility and high component content of existing prefabricated production molds of balcony slabs.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adjustable beam for balcony slabs of a low-rise box-type concrete structure house and its mold, comprising: A mold base plate, the mold base plate is composed of two interchangeable bottom modules; A flat plate module, used to form the bottom of the prefabricated plate portion; A beam-channel module having a concave channel body for forming the bottom of the beam portion of the prefabricated balcony member; The enclosure module is arranged around the mold base plate and together with the mold base plate forms an integrated mold cavity for pouring concrete; An adjustment module is arranged on the top of the mold bottom plate and is used to adjust the position of the beam groove.

[0007] Preferably, there is a preset height difference between the forming top surface of the flat plate module and the groove bottom forming surface of the beam groove module, and the height difference is used to form the plate-beam integrated structure of the prefabricated balcony member.

[0008] Preferably, the mold bottom plate includes a flat plate module and a beam groove module, and both have a flat outer bottom surface that can be laid on the same horizontal reference plane.

[0009] Preferably, the enclosure module includes side molds arranged on both sides of the mold base plate, and the side molds are downward-flipping and connected to the mold base plate via detachable pins.

[0010] Preferably, the enclosure module further comprises end modules arranged at both ends of the mold bottom plate, and the end modules are used to define the length of the prefabricated balcony member.

[0011] Preferably, the adjustment module comprises a plurality of wooden boards plugged into each other, and the wooden boards have a plurality of different lengths and specifications.

[0012] Preferably, both ends of the adjustment module are respectively arranged between the beam trough module and the side form.

[0013] Preferably, the end module is inserted into the inside of the side mold, and the two are connected by a fixing pin.

[0014] The present invention provides an adjustable beam for balcony slabs of a low-rise box-type concrete structure house and its mold. It has the following beneficial effects: 1. In the present invention, the mold base of the adjustable balcony beam mold is composed of a reusable flat module and a beam groove module. When the relative position of the balcony beam or the size of the eaves needs to be changed, the operator does not need to replace or re-customize the entire set of expensive steel molds. It is only necessary to replace the low-cost adjustment modules of different length specifications between the beam groove module and the side mold to quickly change the mold cavity size. After adding the steel cage and concrete, a balcony slab with a beam that meets the requirements can be obtained. The use of replaceable "consumable" adjustment modules replaces the traditional method of customizing multiple sets of main molds for different components, greatly reducing the total number of molds purchased and fixed asset investment, significantly reducing production costs, and greatly improving the turnover rate and versatility of core molds.

[0015] 2. In this invention, by utilizing an adjustment module within the mold to precisely and conveniently define the molding position of the beam-trough module, the company can quickly respond to and meet the individual requirements of different clients and architectural designs for balcony overhang lengths and structural stress points. This high level of production flexibility frees the final "low-rise, multi-story box-type concrete structure house" from the constraints of standardized components, better adapting to diverse market demands, thereby gaining a significant competitive advantage and ultimately enhancing the company's brand value and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 Schematic diagram of the structure of the flat panel module of the present invention; Figure 3 Schematic diagram of the structure of the wooden board of the present invention.

[0017] Among them, 1. mold base; 11. flat plate module; 12. beam trough module; 2. enclosure module; 21. side mold; 22. end module; 3. adjustment module; 31. wooden board. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0019] Please see the attached Figure 1 -Attached Figure 3 An embodiment of the present invention provides an adjustable beam for balcony slabs of a low-rise box-type concrete structure house and its mold, which is mainly composed of a mold bottom plate 1, a panel module 2 and an adjustment module 3.

[0020] The mold base 1 forms the foundation for the bottom shape of the prefabricated balcony element. It is not a single piece of steel plate, but rather consists of two interchangeable bottom modules with different functions. These modules are the flat plate module 11 and the beam-trough module 12. Before actual production, workers will splice these modules together on a horizontal platform mold or similar reference surface, similar to laying floor tiles, according to the drawing requirements. The flat plate module 11 forms the bottom of the thinner slab portion of the final balcony element, and its molding surface in contact with the concrete is a higher plane. The beam-trough module 12 forms the bottom of the reinforcing beam portion of the balcony element, and its structure has a significantly concave trough. The bottom of this trough serves as the molding surface of the beam, which is located lower than the molding surface of the flat plate module 11. This preset height difference allows for the natural formation of a plate-beam integrated structure in which the beam protrudes from the slab after a single pouring operation. In order to ensure the stability and standardization of the splicing, all the flat plate modules 11 and beam trough modules 12 have a completely flat outer bottom surface to ensure that they can be laid closely on the same horizontal reference plane.

[0021] After the mold base plate 1 is spliced together, the enclosure module 2 needs to be installed to form a closed mold cavity for accommodating concrete. The enclosure module 2 specifically includes side molds 21 arranged on both sides of the mold base plate 1 in the length direction, and end modules 22 arranged at both ends in the width direction. The side molds 21 are downward-flipping, and their bottoms are connected and fixed to the edges of the mold base plate 1 by multiple detachable pins. This design has huge advantages in the demoulding process. When the pins are removed, the side molds 21 can be opened outward or downward like a door, providing an unobstructed open space for the vertical lifting of the heavy balcony finished product. The end module 22 is used to accurately define the overall length of the prefabricated balcony parts. It is designed to be directly plugged into the inside of the two side molds 21, and the three are also firmly connected into an integral frame through fixed pins.

[0022] The adjustment module 3 is the direct executor of the key function of "adjustable beam". The adjustment module 3 can be composed of a plurality of interlocking wooden panels 31, which are pre-processed into a variety of different length specifications. Its installation position is very critical. After the assembly is completed, its two ends respectively abut between the outer wall of the beam groove module 12 and the inner wall of the side mold 21. Different numbers of wooden panels 31 can be used to splice the beam according to the distance from the edge of the balcony slab. The effective molding position of the beam groove module 12 in the entire mold system can be accurately and conveniently changed, thereby flexibly adjusting the relative position of the final finished beam, meeting the diverse architectural design requirements.

[0023] After the mold base 1, enclosure modules 2, and adjustment modules 3 are installed, a complete and solid mold cavity is formed. After evenly applying a release agent to the cavity, the prefabricated steel cage is hoisted in, and concrete is poured all at once. Once the concrete has cured and reached the release strength, all securing pins are removed sequentially. The end modules 22 at each end are first removed, and the side molds 21 on both sides are flipped downward and opened. The finished balcony slab can now be lifted from above by a crane without obstruction.

[0024] Working principle: First, the flat plate module 11 with a flat outer bottom surface included in the mold base plate 1 is spliced together with the beam groove module 12, wherein the groove bottom molding surface of the beam groove module 12 is lower than the molding top surface of the flat plate module 11; then, the adjustment module 3 of predetermined specifications, that is, the wooden board 31, is placed on the outside of the beam groove module 12, and the installation position of the side mold 21 is determined by the number of spliced wooden boards 31, thereby establishing the spatial relationship of the beam body in the final component; then, the side mold 21 as the enclosure module 2 is installed on both sides of the mold base plate 1, and connected to the mold base plate 1 through a detachable pin, and then the end module 22 is plugged in between the two The inside of the side mold 21 is also connected by fixed pins. At this point, the mold base plate 1, the enclosure module 2 and the adjustment module 3 together form an internally connected complete mold cavity with a high and low bottom surface; in the pouring and molding stage, the steel cage is placed in the mold cavity, and the concrete is filled in at one time and formed in the beam trough module 12 and the flat plate module 11 above it respectively; finally, when demolding, the pins are removed in turn, first the end module 22 is moved away from between the side molds 21, and then the side mold 21 is flipped downward to open, thereby releasing the enclosure module 2 from the molding component, so that the component can be vertically lifted and completely separated from the mold base plate 1 and the adjustment module 3 below.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable beam for balcony slab of a low-rise box-type concrete structure house and its mold, characterized in that: include: A mold base plate (1), the mold base plate (1) being composed of two interchangeable bottom modules; A flat plate module (11) is used to form the bottom of the prefabricated plate portion; A beam-trough module (12) having a concave trough body for forming the bottom of the beam body portion of the prefabricated balcony member; A panel module (2) is arranged around the mold base plate (1) and together with the mold base plate (1) forms an integrated mold cavity for pouring concrete; An adjustment module (3) is arranged on the top of the mold bottom plate (1) and is used to adjust the position of the beam groove (12).

2. The adjustable beam for balcony slab of a low-rise and multi-story box-type concrete structure house and its mold according to claim 1, characterized in that: There is a preset height difference between the top molding surface of the flat plate module (11) and the bottom molding surface of the beam groove module (12), and the height difference is used to form the plate-beam integrated structure of the prefabricated balcony member.

3. The adjustable beam for balcony slab of a low-rise and multi-story box-type concrete structure house and its mold according to claim 1, characterized in that: The mold base plate (1) comprises a flat plate module (11) and a beam groove module (12), and both have a flat outer bottom surface that can be laid on the same horizontal reference plane.

4. The adjustable beam for balcony slab of a low-rise and multi-story box-type concrete structure house and its mold according to claim 1, characterized in that: The enclosure module (2) comprises side molds (21) arranged on both sides of the mold base plate (1); the side molds (21) are downward-folding and connected to the mold base plate (1) via detachable latches.

5. The adjustable beam for balcony slab of a low-rise and multi-story box-type concrete structure house and its mold according to claim 1, characterized in that: The enclosure module (2) further comprises end modules (22) arranged at both ends of the mold base plate (1), and the end modules (22) are used to define the length of the prefabricated balcony member.

6. The adjustable beam for balcony slab of a low-rise and multi-story box-type concrete structure house and its mold according to claim 1, characterized in that: The adjustment module (3) comprises a plurality of wooden boards (31) plugged into each other, and the wooden boards (31) have a plurality of different lengths and specifications.

7. The adjustable beam for balcony slab of a low-rise and multi-story box-type concrete structure house and its mold according to claim 1, characterized in that: Both ends of the adjustment module (3) are respectively arranged between the beam groove module (12) and the side mold (21).

8. The adjustable beam for balcony slab of a low-rise and multi-story box-type concrete structure house and its mold according to claim 1, characterized in that: The end module (22) is plugged into the interior of the side mold (21), and the two are connected via a fixed pin.

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