Forward casting precast concrete independent foundation mold

Abstract

The utility model relates to the technical field of pouring of prefabricated independent foundations, in particular to a positive pouring prefabricated concrete independent foundation mold which is formed by butt joint of two diagonal mold bodies and sequentially formed by butt joint of a diagonal column mold, a diagonal inclined mold and a diagonal side mold from top to bottom, the two diagonal column molds are in butt joint to form a rectangular hollow column body I, and the rectangular hollow column body I is in butt joint with the diagonal inclined mold. The two diagonal inclined dies are in butt joint to form a rectangular pyramid frustum hollow cylinder, the two diagonal side dies are in butt joint to form a rectangular hollow cylinder II, and the upper end and the lower end of the rectangular pyramid frustum hollow cylinder are in butt joint with the rectangular hollow cylinder I and the rectangular hollow cylinder II respectively. The positive pouring precast concrete independent foundation mold is particularly suitable for pouring of a large-size independent foundation; compared with a traditional inverted beating and overturning mold, the mold does not need to be overturned, the requirements for the load of a crane and the lifting height of the crane are lowered, and meanwhile the safety risk in the overturning process is reduced.

Description

A type of formwork for cast-in-place precast concrete independent foundations Technical Field

[0001] This utility model relates to the field of precast independent foundation pouring technology, specifically to a mold for casting precast concrete independent foundations. Background Technology

[0002] In the construction process, the pouring of independent foundations is a crucial step. Traditional pouring methods typically involve on-site formwork erection, rebar tying, and concrete pouring. However, in practice, especially when pouring large-sized independent foundations, numerous challenges are often encountered.

[0003] First, construction sites often have limited space and a limited number of workers, making it impossible to fabricate a large number of independent foundation molds in a timely manner. Furthermore, traditional molds are mostly made of wood. While wooden molds can meet pouring requirements to some extent, their reuse count is limited, and they easily cause mess at the construction site during demolding. More importantly, wooden formwork is not strong enough and is prone to cracking, which not only affects the durability of the molds but may also lead to problems such as mold bulging, resulting in wasted time and reduced economic efficiency.

[0004] To address these issues, precast concrete foundation molds have been gradually introduced into building construction. However, most existing precast concrete foundation molds employ an inverted and flipping design. While this improves casting efficiency to some extent, its applicability is primarily limited to smaller precast foundations. For large-sized independent concrete foundations, the inverted and flipping mold not only requires higher crane load capacity and lifting height, increasing construction difficulty and cost, but also poses certain risks during the flipping process, compromising construction safety.

[0005] Therefore, there is an urgent need for a mold suitable for prefabricating large-sized independent foundations to solve the problems existing in the current technology. Summary of the Invention

[0006] To address the aforementioned issues, this utility model provides a formwork for casting precast concrete independent foundations in a normal orientation. This formwork is particularly suitable for casting large-sized independent foundations. Compared to traditional inverted and flipping formwork, this formwork does not require flipping, reducing the requirements for crane load capacity and lifting height, while also minimizing safety risks during the flipping process.

[0007] The technical solution of this utility model is as follows:

[0008] A precast concrete independent foundation mold is formed by joining two diagonal mold bodies. From top to bottom, it is formed by joining diagonal column molds, diagonal inclined molds, and diagonal side molds. After joining the two diagonal column molds, a rectangular hollow column I is formed. After joining the two diagonal inclined molds, a square pyramidal hollow column is formed. After joining the two diagonal side molds, a rectangular hollow column II is formed. The upper and lower ends of the square pyramidal hollow column are respectively joined to rectangular hollow column I and rectangular hollow column II.

[0009] The diagonal column mold is formed by joining two side plates, and rib plate I is provided on the outside of the joined column mold.

[0010] The diagonal inclined mold is formed by joining two inclined plates, and a rib plate II is provided on the outer side of the diagonal inclined mold.

[0011] Vent holes are provided on the inclined plate.

[0012] An attached vibratory compactor is installed in the middle of each inclined slab.

[0013] The diagonal mold is made of two vertical plates joined together, and a rib plate III is provided on the outer side of the diagonal mold.

[0014] The two diagonal molds are connected by a mating plate on their mating surfaces, and the two diagonal molds are fastened together by bolts.

[0015] Locating pin holes are provided on the mating plate.

[0016] The diagonal mold body is formed by welding steel plates.

[0017] The thickness of the steel plate is 5-20mm.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model discloses a formwork for casting precast concrete independent foundations. This formwork is particularly suitable for casting large-sized independent foundations. Compared with traditional inverted and flipping formwork, this formwork does not need to be flipped, which reduces the requirements for crane load and crane lifting height, and at the same time reduces the safety risks during the flipping process.

[0020] 2. The present invention discloses a cast-in-place precast concrete independent foundation mold. The cast-in-place precast concrete independent foundation mold has a relatively simple structure, is easy to assemble and disassemble, and is formed by welding steel plates, which improves the strength and durability of the mold, allowing the mold to be reused multiple times and reducing construction costs.

[0021] 3. The present invention discloses a cast-in-place precast concrete independent foundation mold. The inclined mold of the cast-in-place precast concrete independent foundation mold is provided with vent holes and an attached vibrator, which can effectively remove air bubbles in the concrete, ensure uniform pouring, and thus improve the strength and quality of the foundation.

[0022] 4. The present invention discloses a precast concrete independent foundation mold for upright casting, which is suitable for situations where the construction site has limited space and construction personnel; through prefabrication, the mold assembly and concrete pouring can be completed in the factory, and then transported to the construction site for installation, thereby improving construction efficiency.

[0023] 5. The present invention discloses a formwork for cast-in-place precast concrete independent foundations. Compared with traditional wooden formwork, this formwork is made of steel plate material, which can be recycled more times, reducing the impact of waste wooden formwork on the construction site environment. At the same time, because the formwork is sturdy and durable, it reduces material waste and time loss caused by formwork damage.

[0024] 6. The present invention discloses a cast-in-place precast concrete independent foundation mold. The assembly and disassembly process of the cast-in-place precast concrete independent foundation mold is relatively simple and easy to operate. At the same time, due to the clear structure and distinct parts of the mold, it is easy to maintain and care for daily use, thus extending the service life of the mold. Attached Figure Description

[0025] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0026] In the attached diagram:

[0027] Figure 1 is a three-dimensional structural schematic diagram of a precast concrete independent foundation mold according to an embodiment of the present invention;

[0028] Figure 2 is a three-dimensional exploded view of a precast concrete independent foundation mold according to an embodiment of the present invention;

[0029] The components represented by the various reference numerals in the diagram are:

[0030] This utility model comprises: 1. a diagonal mold body, 1a. a diagonal column mold, 1a1. a side plate, 1a2. a rib plate I, 1b. a diagonal inclined mold, 1b1. an inclined plate, 1b2. a rib plate II, 1c. a diagonal side mold, 1c1. a vertical plate, 1c2. a rib plate III. Detailed Implementation

[0031] As shown in Figures 1 and 2, the formwork for the cast-in-place precast concrete independent foundation consists of two symmetrical diagonal mold bodies 1 connected by bolts.

[0032] Each diagonal phantom 1, from top to bottom, includes:

[0033] Diagonal column mold 1a: A rectangular hollow column I is formed by joining two rectangular side plates 1a1 together, and rib plates I1a2 are welded to the outside of the side plates to enhance rigidity;

[0034] Diagonal inclined mold 1b: It is formed by joining two trapezoidal inclined plates 1b1 to form a hollow truncated pyramid. Ribs Ⅱ1b2 are welded to the outside of the inclined plates. The inclined plates are provided with evenly distributed vent holes and an attached vibrator installed in the middle.

[0035] Diagonal side mold 1c: A rectangular hollow column II is formed by joining two rectangular vertical plates 1c1 together, and ribs Ⅲ1c2 are welded to the outside of the vertical plates.

[0036] The upper end of the square pyramidal hollow cylinder is connected to rectangular hollow cylinder I, and the lower end is connected to rectangular hollow cylinder II, forming a continuous stepped cavity structure.

[0037] As shown in Figure 2, the formwork for the cast-in-place precast concrete independent foundation is divided into two diagonal formworks 1 along the diagonal face of the formwork. The mating surfaces of the diagonal formworks 1 are provided with mating plates with positioning pin holes 11. The positioning pins enable quick alignment, and bolts are then used to pass through the mating plates to complete the fastening connection.

[0038] The formwork for the cast-in-place precast concrete independent foundation is made of Q235B steel plate welded together. The thickness of the steel plate can be selected from 5 to 20 mm according to actual needs. In this embodiment, it is preferably 10 mm. The thickness of rib plate I1a2, rib plate II1b2, and rib plate III1c2 is 12 mm, the spacing is 250 mm, and they are continuously fully welded to the corresponding side plate, inclined plate, and vertical plate. The weld height is 5 mm.

[0039] Steps for using formwork for cast-in-place precast concrete independent foundations:

[0040] Reinforcing cage installation: Place the tied reinforcing cage inside the diagonal formwork 1;

[0041] Concrete pouring: Pour concrete into the mold in layers; when pouring to the inclined mold 1b area, start the attached vibrator, with the vibration direction perpendicular to the plane of the inclined plate, and cooperate with the air vent to remove air bubbles, ensuring that the concrete is dense and free of voids.

[0042] Demolding and curing: After the concrete has initially set, loosen the bolts and separate the diagonal mold body 1. After demolding, the foundation surface is flat and free of adhesion, and there is no bulging at the truncated pyramid part.

[0043] This upright casting precast concrete independent foundation mold is highly efficient and safe: the upright casting design avoids the risk of large-sized foundations turning over and adapts to crane load limitations; quality is controllable: layered vibration and directional degassing solve the air bubble problem, increasing the foundation compressive strength by 15%-20%; durable and economical: the steel plate welded structure can be recycled ≥50 times, reducing costs by 60% compared to wooden molds.

Claims

1. A formwork for a cast-in-place precast concrete independent foundation, characterized in that, It is formed by joining two diagonal molds (1). The diagonal mold (1) is formed by joining diagonal column mold (1a), diagonal inclined mold (1b) and diagonal side mold (1c) from top to bottom. After joining the two diagonal column molds (1a), a rectangular hollow column I is formed. After joining the two diagonal inclined molds (1b), a square pyramid hollow column is formed. After joining the two diagonal side molds (1c), a rectangular hollow column II is formed. The upper and lower ends of the square pyramid hollow column are joined to the rectangular hollow column I and the rectangular hollow column II, respectively. The diagonal column mold (1a) is formed by joining two side plates (1a1). A set is provided on the outside of the diagonal column mold (1a). Rib plate I (1a2); the diagonal inclined mold (1b) is formed by joining two inclined plates (1b1), and rib plate II (1b2) is provided on the outside of the diagonal inclined mold (1b); vent holes are provided on the inclined plates (1b1); an attached vibrator is installed in the middle of each inclined plate (1b1); the diagonal side mold (1c) is formed by joining two vertical plates (1c1), and rib plate III (1c2) is provided on the outside of the diagonal side mold (1c); the mating surfaces of the two diagonal mold bodies (1) are provided with mating plates, and the two diagonal mold bodies (1) are fastened together by bolts; positioning pin holes are provided on the mating plates.

2. The formwork for a precast concrete independent foundation according to claim 1, characterized in that, The diagonal mold (1) is formed by welding steel plates.

3. The formwork for a precast concrete independent foundation according to claim 2, characterized in that, The thickness of the steel plate is 5-20mm.

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