Multi-section prefabricated caisson mold

Abstract

The utility model relates to the field of fabricated house construction, in particular to a multi-section prefabricated caisson mold which comprises an inner mold, an outer mold and a connecting suspension arm, and the inner mold is hoisted in the outer mold through the connecting suspension arm. The outer mold comprises a first outer high side mold, a second outer high side mold, a third outer short side mold, a high angle mold and a fourth outer short side mold which are connected in sequence to form a rectangle; each of the third outer short side mold and the fourth outer short side mold comprises an end mold section and a short mold section; the inner mold comprises a first inner high side mold, a second inner high side mold, a third inner short side mold and a fourth inner short side mold; the first inner high side mold, the second inner high side mold, the third inner short side mold, the high angle mold and the fourth inner short side mold are sequentially connected to form a rectangle; the first inner high side mold and the second inner high side mold are both in a rectangular tube shape, are in an L shape and are arranged above the third inner short side mold and the fourth inner short side mold in a lap joint mode. The caisson structure is stable in structure, convenient to install, capable of being formed through one-time pouring and easy to demould, and batch production of the multi-section caisson structure is achieved.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated housing construction, specifically to a multi-section prefabricated caisson mold. Background Technology

[0002] With the rapid development of fields such as construction, transportation, and water conservancy, the demand for standardized and mechanized production of components is increasing, leading to the emergence of prefabricated component molds. In recent years, the country has vigorously promoted the development of the prefabricated construction industry, and many buildings are now constructed using prefabricated methods.

[0003] Traditional sunken caisson components designed for bathroom and toilet structures are typically rectangular in shape, with a partial or complete depression in the center, forming a sunken cavity at a certain depth from the floor level. This cavity is surrounded by enclosed barriers. However, this type of sunken caisson component is generally suitable for residential units, with each bathroom / toilet having its own dedicated caisson component. Due to limitations in structural characteristics, spatial layout, construction difficulty, maintenance complexity, and economic viability, it is not suitable for building types such as school dormitories that require multiple bathrooms / toilets.

[0004] Currently, during the construction process, multi-section caisson structures have been designed for buildings such as school dormitories that require multiple toilets and showers in a continuous manner, such as... Figure 7 As shown, the multi-section prefabricated caisson includes a bottom structural layer, a middle structural layer, and a top structural layer. The bottom structural layer is a rectangular plate with a rectangular notch at one corner. The middle structural layer is also a rectangular plate, smaller in area than the bottom structural layer, and located at the top center of the bottom structural layer. The rectangular notch is aligned with one side of the middle structural layer. The top structural layer is L-shaped and located at the top edge of the bottom structural layer. The L-shaped corner is diagonally opposite the rectangular notch. The inner side of the top structural layer is aligned with two sides of the middle structural layer, and the upper surface of the top structural layer is higher than the upper surface of the middle structural layer.

[0005] For the aforementioned multi-section caisson structure, there are no molds on the market that can be used with a molding machine for mass production. Therefore, it is necessary to design a prefabricated mold that can manufacture the aforementioned multi-section caisson structure to meet the needs of the factory for mass production of multi-section caisson structures. Utility Model Content

[0006] To address the technical problems existing in the prior art, the purpose of this utility model is to provide a multi-section prefabricated caisson mold that can produce multi-section caisson structures that meet the needs of buildings such as school dormitories that require the continuous installation of multiple toilets and showers.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A multi-section precast caisson mold is disclosed for preparing multi-section precast caissons. The multi-section precast caisson includes a rectangular bottom structural layer with a rectangular notch, a rectangular middle structural layer, and an L-shaped top structural layer. The mold includes an inner mold, an outer mold, and a connecting boom. The inner mold is hoisted inside the outer mold via the connecting boom. The outer mold includes a first outer high side mold, a second outer high side mold, a third outer low side mold, a high-angle mold, and a fourth outer low side mold connected in sequence to form a rectangle. The third and fourth outer low side molds each include an end mold section and a low mold section. The inner mold includes a first inner high side mold, a second inner high side mold, a third inner low side mold, and a fourth inner low side mold, wherein the first inner high side mold, the second inner high side mold, the third inner low side mold, the high-angle mold, and the fourth inner low side mold are connected in sequence to form a rectangle. The first and second inner high side molds are both rectangular tubular, forming an L-shape, and are placed above the third and fourth inner low side molds.

[0009] Furthermore, the rectangle formed by the first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, and the fourth outer low side mold is used for forming the bottom structural layer, and the high angle mold is used for forming the rectangular notch of the bottom structural layer; the bottom surface of the first inner high side mold, the bottom surface of the second inner high side mold, the inner surface of the third inner low side mold, the inner surface of the high angle mold, and the inner surface of the fourth inner low side mold are used for forming the middle structural layer; the heights of the first inner high side mold, the second inner high side mold, the first outer high side mold, the second outer high side mold, and the end mold section are flush, and the first inner high side mold, the second inner high side mold, the first outer high side mold, and the second outer high side mold together form an L-shaped gap, with the end mold section located at both ends of the L-shaped gap; the first inner high side mold, the second inner high side mold, the first outer high side mold, the second outer high side mold, and the end mold section are used for forming the top structural layer.

[0010] Furthermore, the connecting boom is U-shaped, with one end of the connecting boom fixedly connected to the inner mold by welding, and the other end of the connecting boom fixedly welded with a flange. The outer mold is provided with a flange corresponding to the flange on the connecting boom, and the flange of the outer mold and the flange on the connecting boom are detachably connected by bolts.

[0011] Furthermore, a diagonal steel pipe is installed above the third and fourth inner low side molds, along the diagonal of the inner mold rectangle, to stabilize the inner mold.

[0012] Furthermore, the diagonal bracing steel pipes are fixedly connected to the third and fourth inner low side molds by welding.

[0013] Furthermore, the first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, and the fourth outer low side mold are sequentially and detachably connected by bolts.

[0014] Furthermore, the end module segment and the low module segment are an integral structure.

[0015] Furthermore, the first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, the fourth outer low side mold, the third inner low side mold, and the fourth inner low side mold are all made of L-shaped angle steel strips.

[0016] Furthermore, the grooves of the L-shaped angle steel strips used in the first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, the fourth outer low side mold, the third inner low side mold, and the fourth inner low side mold are all provided with multiple reinforcing steel ribs at intervals.

[0017] Furthermore, the connecting boom is made of hollow steel pipe with a rectangular cross-section.

[0018] This utility model has the following advantages:

[0019] 1. The multi-section precast caisson mold provided by this utility model is assembled from an inner mold and an outer mold by connecting a crane arm. It has a stable structure, is easy to install and construct, can be cast in one go, and is easy to demold, realizing high-precision precast mass production of multi-section precast caissons.

[0020] 2. The multi-section prefabricated caisson produced by this utility model has a rectangular notch in its bottom structural layer, which allows for centralized on-site installation of pipe sections to meet the requirements of different projects for installing pipe sections of different shapes and numbers.

[0021] 3. This utility model features a structurally optimized design with reinforcing ribs and uses hollow steel pipes for multiple structural steel pipes, which effectively reduces the overall weight of the mold, lowers the difficulty of hoisting, and increases the construction speed.

[0022] 4. The mold provided by this utility model can disassemble the outer mold into multiple parts, while the inner mold is fixedly connected to form a whole. It is not only easy to disassemble and demold, but also convenient to transport and handle the outer mold. The inner mold can be hoisted by machinery, and the installation can be completed in one hoisting, which greatly improves production efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a structural schematic diagram from another perspective of this utility model.

[0025] Figure 3 It is the outer mold of this utility model.

[0026] Figure 4 This is a structural schematic diagram of the outer mold of this utility model from another perspective.

[0027] Figure 5 This is a schematic diagram of the inner mold of this utility model.

[0028] Figure 6 This is a structural schematic diagram of the inner mold of this utility model from another perspective.

[0029] Figure 7 This is a structural schematic diagram of a multi-section prefabricated caisson.

[0030] in,

[0031] 1 is the outer mold, 11 is the first outer high side mold, 12 is the second outer high side mold, 13 is the third outer low side mold, 14 is the high angle mold, 15 is the fourth outer low side mold, 16 is the end mold section, and 17 is the low mold section.

[0032] 2 is the inner mold, 21 is the first inner high side mold, 22 is the second inner high side mold, 23 is the third inner low side mold, 24 is the fourth inner low side mold, and 25 is the diagonal bracing steel pipe.

[0033] 3 is the connecting boom, and 31 is the flange.

[0034] 4 is reinforced steel ribs.

[0035] 51 is the bottom structural layer, 52 is the middle structural layer, 53 is the top structural layer, and 54 is a rectangular notch. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1 to 6 As shown, a multi-section precast caisson mold is used to prepare multi-section precast caissons. The multi-section precast caisson includes a rectangular bottom structural layer with a rectangular notch, a rectangular middle structural layer, and an L-shaped top structural layer. The mold includes an inner mold, an outer mold, and a connecting boom. The inner mold is hoisted inside the outer mold by the connecting boom. The outer mold includes a first outer high side mold, a second outer high side mold, a third outer low side mold, a high-angle mold, and a fourth outer low side mold connected in sequence to form a rectangle. The third outer low side mold and the fourth outer low side mold each include an end mold section and a low mold section. The inner mold includes a first inner high side mold, a second inner high side mold, a third inner low side mold, and a fourth inner low side mold, wherein the first inner high side mold, the second inner high side mold, the third inner low side mold, the high-angle mold, and the fourth inner low side mold are connected in sequence to form a rectangle. The first inner high side mold and the second inner high side mold are both rectangular tubular, forming an L-shape, and are placed above the third inner low side mold and the fourth inner low side mold.

[0038] In this embodiment, the rectangle formed by the first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, and the fourth outer low side mold is used for forming the bottom structural layer, and the high angle mold is used for forming the rectangular notch of the bottom structural layer; the bottom surface of the first inner high side mold, the bottom surface of the second inner high side mold, the inner side surface of the third inner low side mold, the inner side surface of the high angle mold, and the inner side surface of the fourth inner low side mold are used for forming the middle structural layer; the heights of the first inner high side mold, the second inner high side mold, the first outer high side mold, the second outer high side mold, and the end mold section are flush, and the first inner high side mold, the second inner high side mold, the first outer high side mold, and the second outer high side mold together form an L-shaped gap, and the end mold section is located at the two ends of the L-shaped gap; the first inner high side mold, the second inner high side mold, the first outer high side mold, the second outer high side mold, and the end mold section are used for forming the top structural layer.

[0039] Specifically, the rectangle formed by the first high outer side mold, the second high outer side mold, the third low outer side mold, the high-angle mold, and the fourth low outer side mold becomes the grouting mold for the bottom structural layer. Due to the characteristics of concrete, the concrete slurry will not overflow from the low mold section when grouting the bottom structural layer.

[0040] The rectangle formed by the bottom surface of the first inner high side mold, the bottom surface of the second inner high side mold, the inner side surface of the third inner low side mold, the inner side surface of the high angle mold, and the inner side surface of the fourth inner low side mold becomes the grouting mold for the middle structural layer. Similarly, when grouting the middle structural layer, the concrete slurry will not overflow from the gaps on the side.

[0041] The first inner high side mold, the second inner high side mold, the first outer high side mold, and the second outer high side mold together form an L-shaped grouting gap. The end mold section is located at the two ends of the L-shaped gap to surround the L-shaped gap, forming a grouting molding mold for an L-shaped top layer structure.

[0042] like Figures 1 to 2 As shown, the connecting boom is U-shaped. One end of the connecting boom is fixedly connected to the inner mold by welding, and the other end of the connecting boom is fixedly welded to a flange. The outer mold is provided with a flange corresponding to the flange on the connecting boom. The flange of the outer mold and the flange on the connecting boom are detachably connected by bolts.

[0043] Specifically, the inner mold is suspended inside the outer mold by a connecting boom. The connecting boom is equipped with a flange, and the outer mold is equipped with a corresponding flange. The two are detachably connected by bolts, which allows the inner mold to be easily disassembled and facilitates its hoisting.

[0044] like Figures 5 to 6 As shown, a diagonal steel pipe is installed above the third and fourth inner low side molds, running along the diagonal of the inner mold rectangle, to stabilize the inner molds. The diagonal steel pipe is fixedly connected to the third and fourth inner low side molds by welding.

[0045] Specifically, the third and fourth inner low side molds of the inner mold are not directly fixedly connected, but are connected to the high angle mold. Furthermore, the inner mold is a rectangular structure and is not stable. To improve stability, a diagonal steel pipe is set above the third and fourth inner low side molds along the diagonal of the inner mold rectangle. This stabilizes the rectangular structure of the inner mold and improves the stability of the third and fourth inner low side molds, thereby enhancing the structural stability during the hoisting of the inner mold and facilitating hoisting.

[0046] like Figures 3 to 4 As shown, the first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, and the fourth outer low side mold are sequentially and detachably connected by bolts. The end mold section and the low mold section are an integral structure.

[0047] Specifically, the outer mold consists of five parts, which are connected in a detachable manner by bolts, making the outer mold easy to assemble and disassemble, facilitating not only demolding but also transportation and loading / unloading.

[0048] The first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, the fourth outer low side mold, the third inner low side mold, and the fourth inner low side mold are all made of L-shaped angle steel strips. Multiple reinforcing steel ribs are spaced apart in the grooves of the L-shaped angle steel strips used in the first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, the fourth outer low side mold, the third inner low side mold, and the fourth inner low side mold. The connecting boom is made of hollow steel pipe with a rectangular cross-section.

[0049] In this utility model, the structure of the mold has been optimized. Some parts are made of L-shaped angle steel bars, and multiple reinforcing steel ribs are set at intervals in their grooves. At the same time, hollow steel pipes are used in many structural steel pipes. The advantage of this design is that it effectively reduces the overall weight of the mold, reduces the difficulty of hoisting, and improves the construction speed.

[0050] The working process and principle of this utility model:

[0051] Because of the coarse aggregate and overall cohesiveness of concrete, its fluidity is not high, which is quite different from conventional fluids. Therefore, during the concrete pouring process, there is no need to worry about concrete slurry overflowing upwards from gaps where there is a difference in cross-sectional height, such as between the third outer low side mold and the third inner low side mold. The mold only needs to pour concrete continuously once to form the multi-section precast caisson. Therefore, the process of producing the caisson structure using the mold of this utility model is as follows:

[0052] 1) Assemble the outer mold on the molding machine, and pre-set the steel mesh and embedded parts inside the outer mold;

[0053] 2) Assemble the inner mold and use machinery to lift the inner mold above the outer mold. Then, suspend the inner mold inside the outer mold by connecting the crane arm.

[0054] 3) After the mold is assembled and the reinforcing bars and embedded parts are in place, grouting can begin;

[0055] 4) During grouting, firstly, pour concrete grout into the hollowed-out area in the middle of the inner mold to fill the bottom gap between the third outer low side mold, the third inner low side mold, and the fourth outer low side mold and the fourth inner low side mold; secondly, pour grout into the middle of the bottom of the mold to fill the bottom structural layer; then continue grouting at the hollowed-out area of ​​the inner mold to fill the middle structural layer; then pour grout into the L-shaped gap to fill the top structural layer of the L-shape; finally, fill any missing parts with grout.

[0056] 5) Vibrate the cast-in-place multi-section precast caissons to remove air, and let them stand to solidify and take shape.

[0057] In summary, the multi-section precast caisson mold provided by this utility model consists of an inner mold and an outer mold connected by a crane arm. It features a stable structure, convenient installation, and easy construction, enabling one-time casting and easy demolding, thus achieving high-precision precast mass production of multi-section precast caissons. Furthermore, the multi-section precast caisson design is reasonable, with the bottom structural layer reserved to accommodate different shapes and quantities of pipe sections for different projects. The mold structure has been optimized, effectively reducing the overall weight of the mold, lowering the difficulty of hoisting, and increasing construction speed. Most of the mold components are connected by detachable bolts, facilitating disassembly and assembly, demolding, transportation, and handling. The inner mold can be hoisted using machinery, requiring only one hoisting operation to complete installation, greatly improving production efficiency.

[0058] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A multi-section prefabricated caisson mold for preparing multi-section prefabricated caissons, the multi-section prefabricated caisson comprising a rectangular bottom structural layer with a rectangular notch, a rectangular middle structural layer, and an L-shaped top structural layer, characterized in that: The mold includes an inner mold, an outer mold, and a connecting boom. The inner mold is suspended inside the outer mold by the connecting boom. The outer mold includes a first outer high side mold, a second outer high side mold, a third outer low side mold, a high corner mold, and a fourth outer low side mold connected in sequence to form a rectangle. The third outer low side mold and the fourth outer low side mold each include an end mold segment and a low mold segment. The inner mold includes a first inner high side mold, a second inner high side mold, a third inner low side mold, and a fourth inner low side mold, wherein the first inner high side mold, the second inner high side mold, the third inner low side mold, the high-angle mold, and the fourth inner low side mold are connected in sequence to form a rectangle; the first inner high side mold and the second inner high side mold are both rectangular tubes, forming an L-shape, and are placed on top of the third inner low side mold and the fourth inner low side mold.

2. The multi-section prefabricated caisson mold according to claim 1, characterized in that: The rectangle composed of the first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, and the fourth outer low side mold is used for forming the bottom structural layer, and the high angle mold is used for forming the rectangular notch of the bottom structural layer. The bottom surface of the first inner high side mold, the bottom surface of the second inner high side mold, the inner side surface of the third inner low side mold, the inner side surface of the high angle mold, and the inner side surface of the fourth inner low side mold are used for forming the middle layer structure. The first inner high side mold, the second inner high side mold, the first outer high side mold, the second outer high side mold, and the end mold section are at the same height. The first inner high side mold, the second inner high side mold, the first outer high side mold, and the second outer high side mold together form an L-shaped gap. The end mold section is located at both ends of the L-shaped gap. The first inner high side mold, the second inner high side mold, the first outer high side mold, the second outer high side mold, and the end mold section are used for forming the top layer of the structure.

3. The multi-section prefabricated caisson mold according to claim 1, characterized in that: The connecting boom is U-shaped. One end of the connecting boom is fixedly connected to the inner mold by welding, and the other end of the connecting boom is fixedly welded to a flange. The outer mold is provided with a flange corresponding to the flange on the connecting boom. The flange of the outer mold and the flange on the connecting boom are detachably connected by bolts.

4. The multi-section prefabricated caisson mold according to claim 1, characterized in that: A diagonal steel pipe is installed above the third and fourth inner low side molds, running along the diagonal of the inner mold rectangle, to stabilize the inner mold.

5. A multi-section prefabricated caisson mold according to claim 4, characterized in that: The diagonal bracing steel pipes are fixedly connected to the third and fourth inner low side molds by welding.

6. A multi-section prefabricated caisson mold according to claim 1, characterized in that: The first high outer side mold, the second high outer side mold, the third low outer side mold, the high angle mold, and the fourth low outer side mold are sequentially and detachably connected by bolts.

7. A multi-section prefabricated caisson mold according to claim 1, characterized in that: The end module segment and the short module segment are an integral structure.

8. A multi-section prefabricated caisson mold according to claim 1, characterized in that: The first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, the fourth outer low side mold, the third inner low side mold, and the fourth inner low side mold are all made of L-shaped angle steel strips.

9. A multi-section prefabricated caisson mold according to claim 8, characterized in that: The grooves of the L-shaped angle steel strips used in the first outer high side mold, the second outer high side mold, the third outer low side mold, the high angle mold, the fourth outer low side mold, the third inner low side mold, and the fourth inner low side mold are all provided with multiple reinforcing steel ribs at intervals.

10. A multi-section prefabricated caisson mold according to claim 3, characterized in that: The connecting boom is made of hollow steel pipe with a rectangular cross-section.

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