Modularized house structure

Abstract

The utility model relates to a modularized house structure which comprises four prefabricated side walls, a post-pouring bottom plate and a post-mounting prefabricated top plate. Side wall mounting holes are formed in the prefabricated side walls, bolt sleeves are embedded in the side wall mounting holes, and the prefabricated side walls are connected through cooperation of high-strength bolts and the bolt sleeves; vertical steel bars extend out of the bottoms of the prefabricated side walls and are connected with steel bars of the post-pouring bottom plate, and the prefabricated side walls and the post-pouring bottom plate are connected through cast-in-place concrete of the post-pouring bottom plate. The post-installation prefabricated top plate and the prefabricated side wall are both provided with top plate installation holes, bolt sleeves are embedded in the top plate installation holes, and the post-installation prefabricated top plate and the prefabricated side wall are connected through cooperation of high-strength bolts and the bolt sleeves. The side walls and the top plate are prefabricated in advance, the side plates are assembled on the mold table, the bottom plate is cast in situ, the top plate is installed later, the whole house structure is formed through splicing, and the production speed is high.

Description

Technical Field

[0001] This utility model relates to modular housing technology, specifically to a modular housing structure that is low-cost, quick to produce, and quick to assemble. Background Technology

[0002] With the advancement of technology and people's pursuit of a higher quality of life, modular integrated housing has gradually become a new favorite in the construction industry. Modular integrated housing, also known as prefabricated assembled buildings, refers to houses that are broken down into several independent modules, each of which is prefabricated in a factory and then transported to the site for assembly.

[0003] The current mainstream production method is monolithic casting, which saves time and reduces construction joints. However, in practical applications, modular houses come in various sizes and styles, making monolithic casting more complicated. It requires constant mold changes, has many welding points, affects the appearance of the finished product, and some parts are difficult to vibrate properly, leading to quality problems such as honeycombing and cracks. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the purpose of this utility model is to provide a modular housing structure that is low-cost, quick to produce, and quick to assemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A modular housing structure includes four precast side walls, one post-cast base slab, and one post-installed precast top slab. The precast side walls have mounting holes with embedded bolt sleeves. The precast side walls are connected by high-strength bolts and bolt sleeves. Vertical reinforcing bars extend from the bottom of the precast side walls and connect to the reinforcing bars of the post-cast base slab. The precast side walls and the post-cast base slab are connected by cast-in-place concrete from the post-cast base slab. Both the post-installed precast top slab and the precast side walls have mounting holes with embedded bolt sleeves. The post-installed precast top slab and the precast side walls are connected by high-strength bolts and bolt sleeves.

[0007] As a preferred embodiment, at the connection of adjacent precast sidewalls, a groove is provided at the end of one precast sidewall, and a sidewall mounting hole is opened in the groove along the width direction of the precast sidewall. The other precast sidewall is provided with a sidewall mounting hole that extends along the thickness direction of the precast sidewall. High-strength bolts connect the bolt sleeves in the two sidewall mounting holes, thereby connecting the adjacent precast sidewalls.

[0008] As a preferred option, cement grout is injected into the grooves to strengthen the connection between the precast sidewalls.

[0009] As a preferred option, the bottom of the prefabricated sidewall is rough.

[0010] As a preferred option, the vertical reinforcing bars at the bottom of the precast sidewall and the reinforcing bars of the post-cast base slab are connected by tying.

[0011] As a preferred embodiment, the post-installed precast roof slab includes one post-cast roof slab body and four precast parapet walls; the precast parapet walls are provided with parapet wall mounting holes, and bolt sleeves are pre-embedded in the parapet wall mounting holes. The precast parapet walls are connected to each other by high-strength bolts and bolt sleeves; vertical reinforcing bars extend from the bottom of the precast parapet walls, and the vertical reinforcing bars are connected to the reinforcing bars of the post-cast roof slab body. The precast parapet walls and the post-cast roof slab body are connected by the cast-in-place concrete of the post-cast roof slab body.

[0012] As a preferred embodiment, at the connection between the later-installed precast top slab and the precast side wall, a through-hole is opened on the upper surface of the precast parapet wall, and a through-hole is opened on the later-cast top slab body. The top slab installation hole is directly opposite the operating hole. A top slab installation hole is also opened on the upper surface of the precast side wall. High-strength bolts connect the bolt sleeves in the two top slab installation holes, thereby connecting the later-installed precast top slab and the precast side wall.

[0013] As a preferred embodiment, at the connection between the precast top slab and the precast side wall, a through lifting operation hole is opened on the upper surface of the precast parapet wall, and a hollow tube is installed in the lifting operation hole. The post-cast top slab body is provided with a lifting installation hole, which is directly opposite the lifting operation hole. A lifting installation hole is also opened on the upper surface of the precast side wall. The lifting bolts connect the lifting bolt sleeves in the two lifting installation holes, thereby connecting the post-cast top slab body and the precast side wall. The upper end of the lifting bolt is higher than the upper surface of the precast parapet wall.

[0014] As a preferred option, both the precast sidewalls and precast parapet walls are prepared using horizontal steel molds.

[0015] As a preferred option, horizontal steel molds include steel mold units of various lengths.

[0016] The principle of this utility model is as follows: First, four side walls and a top plate are prefabricated separately. The side walls are assembled on the mold table and fixed with high-strength bolts. After the side walls are assembled, the bottom plate is reinforced and concrete is poured. After that, the top plate is installed. After the modular house is assembled, the joints are grouted. It is low-cost and can achieve rapid production and rapid assembly.

[0017] This utility model has the following advantages:

[0018] 1. The side walls and roof slabs are prefabricated, the side slabs are assembled on the formwork, the base slab is poured in place, and the roof slab is installed later to form the overall structure of the house. This method allows for multiple work surfaces and fast production speed.

[0019] 2. Connecting with bolts and grouting grooves can effectively ensure the strength and waterproofing of the connection points, allowing different prefabricated wall components to be connected into a modular house.

[0020] 3. The roof slab has a parapet-style inverted beam, which serves two purposes: firstly, it guides water from the roof to prevent it from sliding down the side walls, thus providing waterproofing; secondly, it facilitates the fixing of waterproofing materials; and thirdly, it provides some protection for construction workers during subsequent roof waterproofing layer work, reducing the risk of falls.

[0021] 4. The lifting points of the modular house are set on the top of the long side wall, which can prevent the modular house from being torn or damaged during lifting and increase the protection of the finished product during hoisting.

[0022] 5. Both the precast side walls and precast parapet walls are produced using horizontal steel molds. The number of molds used in the segmented production is far less than that used in the integral production, effectively saving mold costs.

[0023] 6. During the production of precast side walls and precast parapet walls, steel mold units of different lengths can be configured and combined to form the required lengths of the side walls and roof slabs. The dimensions of the precast side walls and precast parapet walls can be adjusted by assembling the steel mold units, making it easy to adapt to modular houses of different sizes and improving the versatility and utilization of the molds.

[0024] 7. By assembling the concrete in sections after production, it can be ensured that the concrete of each wall section is fully vibrated, which can effectively reduce the number of honeycomb pits on the surface, improve the appearance quality of modular houses, and prevent corner chipping due to insufficient vibration.

[0025] 8. Add a rough surface to increase the connection strength between the precast sidewalls and the post-cast base slab. Attached Figure Description

[0026] Figure 1 It is a 3D diagram of a modular housing structure.

[0027] Figure 2 It is a 3D view of the prefabricated side wall.

[0028] Figure 3 This is an assembly drawing for the subsequent installation of precast roof slabs and precast side walls.

[0029] Figure 4 yes Figure 3 Side view.

[0030] Figure 5 This is the assembly drawing for the lifting bolts.

[0031] Figure 6 yes Figure 5 Side view.

[0032] 1-Post-cast top slab body, 2-Precast parapet wall, 3-Precast side wall, 4-Post-cast bottom slab, 5-Bolt sleeve, 6-High-strength bolt, 7-Operating hole, 8-Top slab mounting hole, 9-Lifting operating hole, 10-Lifting mounting hole, 11-Lifting bolt sleeve, 12-Lifting bolt, 13-Groove, 14-Side wall mounting hole. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to specific embodiments.

[0034] A modular housing structure includes four precast side walls, one post-cast base slab, and one post-installed precast top slab. The precast side walls have mounting holes with embedded bolt sleeves. The precast side walls are connected by high-strength bolts and bolt sleeves. Vertical reinforcing bars extend from the bottom of the precast side walls and connect to the reinforcing bars of the post-cast base slab. The precast side walls and the post-cast base slab are connected by cast-in-place concrete from the post-cast base slab. Both the post-installed precast top slab and the precast side walls have mounting holes with embedded bolt sleeves. The post-installed precast top slab and the precast side walls are connected by high-strength bolts and bolt sleeves.

[0035] At the connection point of adjacent precast sidewalls, a groove is provided at the end of one precast sidewall, and a sidewall mounting hole is formed in the groove along the width direction of the precast sidewall. The other precast sidewall has a sidewall mounting hole extending through its thickness direction. High-strength bolts connect the bolt sleeves in the two sidewall mounting holes, thereby connecting the adjacent precast sidewalls. In this embodiment, both ends of one set of precast sidewalls are provided with grooves, and sidewall mounting holes are formed in the grooves to install threaded sleeves. Sidewall mounting holes are also formed on the sidewalls of the other set of precast sidewalls to install threaded sleeves. The number of sidewall mounting holes is selected by those skilled in the art based on design requirements.

[0036] Cement grout is injected into the groove to strengthen the connection between the precast sidewalls. In this embodiment, the cement grout is injected from the top of the groove.

[0037] The bottom of the prefabricated sidewall has a rough surface. In this embodiment, the rough surface is formed during prefabrication.

[0038] The vertical reinforcing bars at the bottom of the precast side wall and the reinforcing bars of the post-cast base slab are connected by tying.

[0039] The post-installed precast roof slab includes one post-cast roof slab body and four precast parapet walls. The precast parapet walls have mounting holes with embedded bolt sleeves. The precast parapet walls are connected to each other using high-strength bolts and bolt sleeves. Vertical reinforcing bars extend from the bottom of the precast parapet walls and connect to the reinforcing bars of the post-cast roof slab body. The precast parapet walls and the post-cast roof slab body are connected by cast-in-place concrete from the post-cast roof slab body. In this embodiment, the fabrication method of the post-installed precast roof slab is the same as that of the precast side walls and post-cast bottom slab. The number of parapet wall mounting holes is selected by those skilled in the art based on design requirements.

[0040] At the connection between the subsequently installed precast top slab and the precast sidewall, a through-hole is made on the upper surface of the precast parapet wall, and a through-hole is made in the subsequently cast top slab body. The top slab mounting holes are directly opposite the operating holes. A top slab mounting hole is also made on the upper surface of the precast sidewall. High-strength bolts connect the bolt sleeves in the two top slab mounting holes, thereby connecting the subsequently installed precast top slab and the precast sidewall. In this embodiment, the number of operating holes is selected by those skilled in the art according to design requirements. The diameter of the operating holes is larger than that of the top slab mounting holes to facilitate the operation of the high-strength bolts.

[0041] At the connection between the precast top slab and the precast sidewall, a through-hole lifting operation hole is opened on the upper surface of the precast parapet wall. A hollow tube is installed inside the lifting operation hole. A lifting installation hole is opened on the post-cast top slab body, directly opposite the lifting operation hole. A lifting installation hole is also opened on the upper surface of the precast sidewall. A lifting bolt connects the lifting bolt sleeves in the two lifting installation holes, thereby connecting the post-cast top slab body and the precast sidewall. The upper end of the lifting bolt is higher than the upper surface of the precast parapet wall. In this embodiment, the number of lifting operation holes is selected by those skilled in the art according to design requirements. Since the precast parapet wall is not suitable as a lifting point, the lifting point (lifting bolt sleeve) is set on the precast sidewall. The lifting bolt mates with the lifting bolt sleeve, and the other end of the lifting bolt mates with the lifting device. The lifting and flipping of the structure is achieved through the pre-embedded lifting bolt sleeve. The diameter of the lifting operation hole is larger than that of the lifting installation hole to facilitate the operation of the lifting bolt.

[0042] Both the precast side walls and precast parapet walls are fabricated using horizontal steel molds. Horizontal steel molds consist only of a bottom mold and side molds, offering a simpler structure and easier operation compared to integral molds. The roof parapet wall is actually an inverted beam, and its stress analysis and dimensional design are performed according to the stress distribution of a beam.

[0043] Horizontal steel formwork comprises various steel formwork units of different lengths. By selecting steel formwork units of different lengths and quantities and assembling them into a horizontal steel formwork, prefabricated side walls and prefabricated parapet walls of different lengths can be produced, thereby improving the utilization rate of the formwork.

[0044] A method for preparing a modular housing structure is as follows: Four prefabricated side walls and a prefabricated roof slab are prefabricated on a mold platform using a horizontal steel mold. Vertical reinforcing bars are pre-installed at the bottom of the prefabricated side walls, and a roughened surface is provided. Lifting bolt sleeves for hoisting are pre-installed at the top of the long side walls. Grooves are provided at both ends of a set of prefabricated side walls, with pre-installed bolt sleeves for connection. The prefabricated roof slab is a cap-shaped structure with a parapet wall. After production, the prefabricated side walls are assembled on the mold platform and fixed with high-strength bolts. During assembly, diagonal braces are used to temporarily reinforce the prefabricated side walls. After forming a cuboid structure without a top or bottom, the post-cast base slab is reinforced with reinforcing bars and concrete is poured. After pouring, waterproof adhesive is applied to the surface of the side wall joints, and then cement grout is injected into the grooves. After grouting, the prefabricated roof slab is installed and fixed with high-strength bolts. The production method of the post-installed precast roof slab is the same as that of the precast side walls and the post-cast bottom slab, which produce precast parapet walls separately and then connect them to the post-cast roof slab body.

[0045] 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 modular housing structure, characterized by: The prefabricated side wall is provided with a side wall mounting hole, a bolt sleeve is embedded in the side wall mounting hole, and the prefabricated side walls are connected through high-strength bolts and the bolt sleeves.

2. A modular building structure according to claim 1, characterised in that: At the connecting position of the adjacent prefabricated side walls, the end of one prefabricated side wall is provided with a groove, a side wall mounting hole is formed in the groove along the width direction of the prefabricated side wall, the other prefabricated side wall is provided with a side wall mounting hole penetrating along the thickness direction of the prefabricated side wall, and high-strength bolts connect the bolt sleeves in the two side wall mounting holes, so that the adjacent prefabricated side walls are connected.

3. A modular building structure according to claim 2, wherein: Cement slurry is injected into the groove to strengthen the connection between the prefabricated side walls.

4. A modular building structure according to claim 1, wherein: The bottom of the prefabricated side wall is a rough surface.

5. A modular building structure according to claim 1, wherein: The vertical steel bars at the bottom of the prefabricated side wall and the steel bars of the post-poured bottom plate are connected through binding.

6. A modular building structure according to claim 1, wherein: The post-installed prefabricated roof plate comprises a post-poured roof plate body and four prefabricated parapets; the prefabricated parapet is provided with a parapet mounting hole, a bolt sleeve is embedded in the parapet mounting hole, and the prefabricated parapets are connected through high-strength bolts and the bolt sleeves.

7. A modular building structure according to claim 6, wherein: At the connecting position of the post-installed prefabricated roof plate and the prefabricated side wall, a penetrating operation hole is formed in the upper end surface of the prefabricated parapet, a penetrating roof plate mounting hole is formed in the post-poured roof plate body, the roof plate mounting hole is opposite to the operation hole, a roof plate mounting hole is also formed in the upper end surface of the prefabricated side wall, and high-strength bolts connect the bolt sleeves in the two roof plate mounting holes, so that the post-installed prefabricated roof plate and the prefabricated side wall are connected.

8. A modular building structure according to claim 6, wherein: At the connecting position of the post-installed prefabricated roof plate and the prefabricated side wall, a penetrating lifting operation hole is formed in the upper end surface of the prefabricated parapet, a hollow pipe is arranged in the lifting operation hole, a lifting mounting hole is formed in the post-poured roof plate body, the lifting mounting hole is opposite to the lifting operation hole, a lifting mounting hole is also formed in the upper end surface of the prefabricated side wall, a lifting bolt connects the lifting bolt sleeves in the two lifting mounting holes, so that the post-poured roof plate body and the prefabricated side wall are connected, and the upper end of the lifting bolt is higher than the upper end surface of the prefabricated parapet.

9. A modular building structure according to claim 6, wherein: The prefabricated side wall and the prefabricated parapet are both prepared through a horizontal steel mold.

10. A modular building structure according to claim 9, wherein: The horizontal steel mold comprises steel mold units of different lengths.

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