Modular hollow block

Abstract

The utility model discloses a combined hollow brick belongs to building material technical field. The combined hollow brick includes the brickboard and the connecting column, and the brickboard is provided with two parallel and all has the mounting hole, and the connecting column has the through hole of both ends, the connecting column is connected perpendicularly between two brickboards, and the mounting hole is corresponding with the position of through -hole, and the screw rod is set up after being used the nut fixed, forms the square hollow brick structure, when the wall is built, the mortar is preliminary fixed brick body, and the screw rod and the nut can be removed and repeatedly used. The connecting column can be provided with two, and the locating hole is arranged on the inner surface of the brickboard corresponding the mounting hole for the insertion positioning of the connecting column, and the inner surface of the brickboard is provided with the recess; the one end of screw rod has the axial limiting portion, and the connecting joint of the brickboard and the connecting column is equipped with the drainage gap, and the internal cavity of hollow structure can accommodate the reinforcing steel bar and cast-in-situ concrete. The combined hollow brick can adjust the strength, and the assembly is convenient, can save the material consumption and construction cost, and the drainage performance is excellent, is applicable to the building wall body and the revetment engineering of masonry, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of building brick technology, specifically to a composite hollow brick that can be used in building construction scenarios such as wall masonry and slope protection. Background Technology

[0002] In building construction, traditional bricks have limitations in structural strength and low degree of prefabrication when used for wall construction; when used for slope protection, drainage and compressive strength are difficult to balance. Conventional hollow bricks are mostly fired as a whole, with a single structural form, which cannot be flexibly combined to adapt to the diverse needs of different projects for strength, drainage, etc. Moreover, when it is necessary to enhance structural strength, it is difficult to combine them with reinforcement materials such as steel bars, resulting in low construction efficiency and high cost, and failing to meet the requirements of modern building engineering for high efficiency, durability, and multi-functionality. Utility Model Content

[0003] The purpose of this utility model is to provide a modular hollow brick that enables convenient assembly, improves the structural strength of the brick, has good drainage performance, is suitable for different building construction scenarios, reduces construction costs, and improves construction efficiency.

[0004] The technical solution of this utility model:

[0005] This utility model provides a combined hollow brick, including brick slabs and connecting columns; two brick slabs are arranged in parallel, and each brick slab has an installation hole; the connecting column has a through hole extending through both ends of the connecting column along its extension direction; the connecting column is vertically connected between the two brick slabs, and the installation hole and the through hole are positioned correspondingly to allow a screw to pass through the installation hole and the through hole, and to be fixed by a nut, thereby fixing the two brick slabs and the connecting column to form a square hollow brick structure.

[0006] According to one embodiment of the present invention, two connecting posts are provided, which are parallel and perpendicularly connected between the two brick slabs. Each connecting post is fixedly connected to the brick slab by the screw and the nut.

[0007] According to one embodiment of the present invention, a positioning hole is formed on the inner surface of the brick plate corresponding to the mounting hole, the positioning hole is adapted to the connecting post, and one end of the connecting post is inserted into the positioning hole.

[0008] According to one embodiment of the present invention, the inner surface of the brick slab is provided with a plurality of grooves.

[0009] According to one embodiment of the present invention, the through hole on the connecting column is a tapered hole, and the tapered hole is flared along the mold exit direction of the connecting column.

[0010] According to one embodiment of the present invention, the brick slab is a rectangular flat plate structure, and the thickness of the brick slab is 30-80mm; the brick slab is a pressed cement board.

[0011] According to one embodiment of the present invention, the connecting column is a cuboid structure or a cylindrical structure, and the length of the connecting column is adapted to the spacing between the two brick slabs.

[0012] According to one embodiment of the present invention, one end of the screw has an axial limiting part, and the other end is provided with an external thread adapted to the internal thread of the nut; the length of the screw is greater than the sum of the distance between the two bricks and twice the thickness of the bricks.

[0013] According to one embodiment of the present invention, a drainage gap is provided at the connection node between the brick slab and the connecting column, and the drainage gap is connected to the internal cavity of the square hollow brick structure.

[0014] According to one embodiment of the present invention, the internal cavity of the square hollow brick structure is used to accommodate reinforcing bars, which are arranged along the length or width of the hollow brick and form an integral structure with the hollow brick through cast-in-place concrete.

[0015] The combined hollow brick of this utility model has the following beneficial effects:

[0016] I. Adjustable Strength and Strong Adaptability: This utility model's modular hollow brick, assembled from brick slabs, connecting columns, screws, and nuts, forms a square hollow structure. This hollow area provides ample space for strength adjustment. During construction, steel reinforcement can be embedded in the hollow area and concrete poured in place, according to the strength requirements of different building projects. The steel reinforcement and poured concrete, together with the brick slabs and connecting columns, form a stable overall load-bearing structure, significantly improving the strength and durability of the brick and wall. Compared to ordinary brick walls that rely solely on the strength of the bricks themselves, the strength of this modular hollow brick can be flexibly adjusted, adapting to various engineering scenarios with strength requirements, from ordinary residential walls to small load-bearing walls, resulting in superior overall performance.

[0017] Second, cost savings and outstanding economic benefits: On the one hand, in the construction of cast-in-place walls, the combined hollow brick structure consisting of brick slabs, connecting columns, bolts and nuts can directly replace the wooden formwork required for traditional cast-in-place construction. There is no need to build and dismantle wooden formwork, which not only reduces the procurement cost of wooden formwork materials such as wood and nails, but also saves the labor cost of building and dismantling wooden formwork, significantly reducing the total construction cost. On the other hand, brick slabs and connecting columns are standardized components that can be mass-produced using uniform molds, resulting in high production efficiency and controllable costs. At the same time, the combined structure has a more regular volume after disassembly, which is convenient for stacking and transportation, reducing space waste and component damage during transportation, and further reducing the cost of production and transportation.

[0018] III. Excellent Drainage and High Slope Protection Stability: When this composite hollow brick is used in slope protection projects, natural pores are formed at the connection nodes between the bricks and the connecting columns, and the through holes on the connecting columns are connected to the hollow areas, forming a complete drainage channel. After rainwater or slope seepage enters the interior of the wall, it can enter the hollow area through the pores of the connection nodes, and then be quickly discharged to the outside of the wall through the through holes of the connecting columns, effectively draining the water accumulated in the wall in a timely manner. Compared with traditional slope protection bricks that lack a dedicated drainage design and are prone to water accumulation, the pore design of this composite hollow brick effectively prevents water from accumulating in the wall and generating excessive water pressure, reducing the squeezing and damage to the slope protection wall caused by water pressure, significantly improving the structural stability of the slope protection project, and extending the service life of the slope protection.

[0019] IV. Reduced material costs: The screw and nut are only used to temporarily fix the bricks and connecting columns during the wall construction stage. They can be removed and reused after the mortar has initially fixed the composite hollow bricks. There is no need to pre-embed the screw and nut as permanent consumables, which greatly reduces the one-time consumption of metal fasteners and lowers the cost of engineering materials.

[0020] The preferred embodiments of this utility model and their beneficial effects will be further described in detail in conjunction with specific implementation methods. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but should not be construed as limiting the present invention. In the drawings:

[0022] Figure 1 This is a perspective view of the combined hollow brick of this utility model;

[0023] Figure 2 This is a top view of the combined hollow brick of this utility model;

[0024] Figure 3 This is an exploded view of the combined hollow brick of this utility model.

[0025] The following are the reference numerals: 1. Brick plate; 2. Connecting column; 10. Mounting hole; 20. Through hole; 3. Screw; 4. Nut; 11. Positioning hole; 12. Groove; 5. Axial limiting part. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0027] Please see Figures 1 to 3This utility model provides a composite hollow brick, including brick slabs 1 and connecting columns 2. Two brick slabs 1 are arranged in parallel, and each brick slab 1 has an installation hole 10. The connecting column 2 has a through hole 20, which extends through both ends of the connecting column 2 along its extension direction. The connecting column 2 is vertically connected between the two brick slabs 1, and the installation hole 10 and the through hole 20 are positioned correspondingly to allow a screw 3 to pass through the installation hole 10 and the through hole 20, and to be fixed by a nut 4, thereby fixing the two brick slabs 1 and the connecting column 2 to form a square hollow brick structure. After the composite hollow brick is used to build the wall, once the mortar has initially fixed the composite hollow brick, the screw 3 and nut 4 can be removed for reuse.

[0028] The combined hollow brick of this utility model has the following beneficial effects:

[0029] I. Adjustable Strength and Strong Adaptability: This utility model's modular hollow brick, assembled from brick slabs 1, connecting columns 2, screws 3, and nuts 4, forms a square hollow structure. This hollow area provides ample space for strength adjustment. During construction, steel reinforcement can be embedded in the hollow area and concrete poured in place according to the strength requirements of different building projects. The steel reinforcement and poured concrete, together with the brick slabs 1 and connecting columns 2, form a stable overall load-bearing structure, significantly improving the strength and durability of the brick and wall. Compared to ordinary brick walls that rely solely on the strength of the brick itself, the strength of this modular hollow brick can be flexibly adjusted, adapting to various engineering scenarios with strength requirements, from ordinary residential walls to small load-bearing walls, resulting in superior overall performance.

[0030] II. Cost Savings and Outstanding Economic Efficiency: On the one hand, during the construction of cast-in-place walls, the combined hollow brick structure consisting of brick slab 1, connecting column 2, bolt 3, and nut 4 can directly replace the wooden formwork required for traditional cast-in-place construction. There is no need to build or dismantle wooden formwork, which not only reduces the procurement cost of wooden formwork materials such as wood and nails, but also saves the labor cost of building and dismantling wooden formwork, significantly reducing the total construction cost. On the other hand, brick slab 1 and connecting column 2 are both standardized components that can be mass-produced using uniform molds, resulting in high production efficiency and controllable costs. At the same time, the combined structure has a more regular volume after disassembly, which is convenient for stacking and transportation, reducing space waste and component damage during transportation, and further reducing the cost of production and transportation.

[0031] III. Excellent Drainage and High Slope Protection Stability: When this composite hollow brick is used in slope protection projects, natural pores are formed at the connection nodes between the brick slab 1 and the connecting column 2, and the through holes 20 on the connecting column 2 are connected to the hollow area, forming a complete drainage channel. After rainwater or slope seepage enters the interior of the wall, it can enter the hollow area through the pores of the connection node, and then be quickly discharged to the outside of the wall through the through holes 20 of the connecting column 2, which can promptly drain the water accumulated in the wall. Compared with traditional slope protection bricks that lack a dedicated drainage design and are prone to water accumulation, the pore design of this composite hollow brick can effectively prevent water from accumulating in the wall and generating excessive water pressure, reducing the squeezing and damage of the slope protection wall by water pressure, significantly improving the structural stability of the slope protection project, and extending the service life of the slope protection.

[0032] IV. Reduce material costs: The screw 3 and nut 4 are only used to temporarily fix the brick slab 1 and the connecting column 2 during the wall construction stage. They can be removed and reused after the mortar has initially fixed the combined hollow bricks. There is no need to pre-embed the screw and nut as permanent consumables, which greatly reduces the one-time consumption of metal fasteners and reduces the cost of engineering consumables.

[0033] In this embodiment, two connecting columns 2 are provided, vertically connected between two brick slabs 1. Each connecting column 2 is fixedly connected to the brick slab 1 by a screw 3 and a nut 4. The two connecting columns 2, vertically connected between the two brick slabs 1 and each fixed to the brick slab 1 by a screw 3 and a nut 4, form a multi-point symmetrical force-bearing structure. Compared with a single connecting column design, this significantly improves the overall deformation resistance of the brickwork and reduces the risk of structural loosening during construction and use. The double connecting columns 2, fixed with independent screws 3 and nuts 4, ensure that the external force on the brick slab 1 is evenly transmitted to the connecting columns 2, avoiding component damage caused by local stress concentration, extending the service life of the brickwork, and ensuring the overall load-bearing capacity of the wall is stable. It is understood that the number of connecting columns 2 is not limited to two; it can also be one or more.

[0034] In this embodiment, a positioning hole 11, adapted to the connecting column 2, is formed on the inner surface of the brick slab 1 at the location corresponding to the mounting hole 10. One end of the connecting column 2 is inserted into the positioning hole 11 for positioning. The positioning hole 11 on the inner surface of the brick slab 1, corresponding to the mounting hole 10, allows one end of the connecting column 2 to be directly inserted for positioning, eliminating the need for repeated adjustments to the alignment of the connecting column 2 and the mounting hole 10, significantly shortening assembly and calibration time and improving construction efficiency. The positioning hole 11, adapted to the connecting column 2, precisely defines the position of the connecting column 2 on the brick slab 1, ensuring that the through hole 20 of the connecting column 2 and the mounting hole 10 of the brick slab 1 are always coaxial, avoiding difficulties in inserting the screw 3 due to alignment deviations, and ensuring assembly accuracy. The connecting column 2 is pre-fixed through the positioning hole 11, and then tightened with the subsequent screw 3 and nut 4, forming a dual guarantee of "pre-positioning + rigid fixing," reducing the displacement of the connecting column 2 under stress or vibration, and further improving the overall structural stability of the brick body.

[0035] In this embodiment, multiple grooves 12 are provided on the inner surface of the brick slab 1. The presence of multiple grooves 12 on the inner surface of the brick slab 1 reduces the amount of cement raw materials used and lowers the self-weight of the brick slab 1 while ensuring the structural strength of the brick slab 1. This saves production costs and reduces the load on the foundation from the wall, meeting the requirements of lightweight construction. The grooves 12 can serve as auxiliary structures. On the one hand, they can accommodate the concrete during casting, increasing the contact area between the concrete and the brick slab 1 and improving the bonding strength. On the other hand, they can embed insulation and sound insulation materials, expanding the insulation and sound insulation functions of the brick body and meeting diverse engineering needs. The grooves 12 can optimize the stress distribution on the inner surface of the brick slab 1, reducing the local impact of concrete on the brick slab 1 during casting. Simultaneously, the grooves 12 can guide the flow of concrete, avoiding air bubble residue, ensuring the density of the cast-in-place structure, and improving construction quality.

[0036] In this embodiment, the brick slab 1 is a rectangular flat plate structure with a thickness of 30-80mm. The brick slab 1 can be made of pressed cement board.

[0037] In this embodiment, the connecting column 2 is a cuboid structure, and its length is adapted to the distance between the two cement slabs. Alternatively, the connecting column 2 can also be a cylindrical structure.

[0038] In this embodiment, the through hole 20 on the connecting post 2 is a tapered hole, which is flared along the demolding direction of the connecting post 2. The tapered design of the through hole 20 on the connecting post 2, compared to a straight hole, creates a natural demolding gap between the connecting post 2 and the mold mandrel after molding. This eliminates the need for additional demolding tools or complex operations, allowing for easy demolding and significantly improving the production efficiency of the connecting post 2. The tapered hole design avoids the hard friction between the connecting post 2 and the mold mandrel during demolding with a straight hole, reducing mandrel wear. It also reduces the risk of mold collisions and deformation due to demolding difficulties, extending mold lifespan and reducing mold maintenance and replacement costs.

[0039] In this embodiment, one end of the screw 3 has an axial limiting part 5, and the other end has an external thread that matches the internal thread of the nut 4. The screw 3 is a metal screw, and the length of the screw 3 is greater than the sum of the distance between the two bricks 1 and twice the thickness of the bricks 1.

[0040] In this embodiment, a drainage gap is provided at the connection node between the brick slab 1 and the connecting column 2, and it is connected to the internal cavity of the square hollow brick structure.

[0041] In this embodiment, the internal cavity of the hollow brick is used to accommodate the reinforcing bars, which are arranged along the length or width of the hollow brick and can form an integral structure with the hollow brick through cast-in-place concrete.

[0042] In this embodiment, the brick slab 1 and the connecting column 2 are made of a mixture of silicate cement and aggregate, and the aggregate includes at least one of quartz sand, fly ash or slag.

[0043] Component fabrication: Brick plate 1 and connecting post 2 are manufactured using a pressing molding process to ensure dimensional accuracy. Brick plate 1 has pre-designed mounting holes 10, and connecting post 2 is machined with through holes 20 to accommodate the screw 3.

[0044] Assembly process: Place two brick slabs 1 in parallel, and place two connecting posts 2 between the two brick slabs 1, so that the through holes 20 of the connecting posts 2 are aligned with the mounting holes 10 of the brick slabs 1; insert the screw 3 into the through holes 20 and the mounting holes 10, put on the nuts 4 and tighten them to complete the assembly of the combined hollow bricks.

[0045] Engineering applications: When used for general walls, steel bars can be placed in the hollow areas according to the design, and cast-in-place concrete can be used to enhance the strength; when used for slope protection, drainage can be achieved by utilizing the pores of the bricks, and they can be stacked reasonably according to the engineering requirements to play a dual function of pressure resistance and drainage.

[0046] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying importance; the words "bottom surface" and "top surface," "inner" and "outer" respectively refer to the geometric direction toward or away from a specific component.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A composite hollow brick, characterized in that: It includes brick slabs (1) and connecting columns (2); two brick slabs (1) are arranged in parallel, and each brick slab (1) has an installation hole (10); the connecting column (2) has a through hole (20) which extends through both ends of the connecting column (2) along its extension direction; the connecting column (2) is vertically connected between the two brick slabs (1), and the installation hole (10) and the through hole (20) are positioned to allow the screw (3) to pass through the installation hole (10) and the through hole (20) and be fixed by a nut (4), thereby fixing the two brick slabs (1) and the connecting column (2) to form a square hollow brick structure.

2. The composite hollow brick according to claim 1, characterized in that: There are two connecting posts (2), which are connected parallel and perpendicularly between the two brick slabs (1). Each connecting post (2) is fixedly connected to the brick slab (1) by the screw (3) and the nut (4).

3. The composite hollow brick according to claim 1, characterized in that: A positioning hole (11) is formed on the inner surface of the brick plate (1) and corresponding to the mounting hole (10). The positioning hole (11) is adapted to the connecting post (2), and one end of the connecting post (2) is inserted into the positioning hole (11).

4. The composite hollow brick according to claim 1, characterized in that: The inner surface of the brick slab (1) is provided with multiple grooves (12).

5. The composite hollow brick according to claim 1, characterized in that: The through hole (20) on the connecting column (2) is a tapered hole, and the tapered hole is flared along the mold exit direction of the connecting column (2).

6. The composite hollow brick according to claim 1, characterized in that: The brick slab (1) is a rectangular flat plate structure, and the thickness of the brick slab (1) is 30-80mm; the brick slab (1) is a pressed cement board.

7. The composite hollow brick according to claim 1, characterized in that: The connecting column (2) is a cuboid or cylindrical structure, and the length of the connecting column (2) is adapted to the distance between the two brick slabs (1).

8. The composite hollow brick according to claim 1, characterized in that: The screw (3) has an axial limiting part (5) at one end and an external thread that matches the internal thread of the nut (4) at the other end; the length of the screw (3) is greater than the sum of the distance between the two brick plates (1) and twice the thickness of the brick plates (1).

9. The composite hollow brick according to claim 1, characterized in that: A drainage gap is provided at the connection node between the brick slab (1) and the connecting column (2), and the drainage gap is connected to the internal cavity of the square hollow brick structure.

10. The composite hollow brick according to claim 1, characterized in that: The internal cavity of the square hollow brick structure is used to accommodate reinforcing bars, which are arranged along the length or width of the hollow brick and form an integral structure with the hollow brick through cast-in-place concrete.

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