A laminated installation structure of a fabricated building module
By setting connection holes and positioning pins in modular buildings, the problems of positioning accuracy and connection reliability during the stacking and installation of modular buildings are solved, and efficient and stable module installation and structural connection are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG XINGZHU TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-10
AI Technical Summary
When modular buildings are stacked and installed on site, there are problems such as insufficient positioning accuracy and poor connection reliability, which affect the verticality and stability of the structure.
The system employs connecting holes at the four corners of the main frame of adjacent building modules, and uses positioning pins with cylindrical and conical positioning parts to achieve rapid pre-positioning and stable connection of the modules. Combined with bolt fixing, it forms a double connection structure.
It achieves precise positioning and efficient installation of modules, improves installation efficiency, enhances structural stability and connection reliability, and avoids structural damage caused by positioning deviations.
Smart Images

Figure CN224478565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building technology, and in particular to a stacked installation structure for prefabricated building modules. Background Technology
[0002] Modular prefabricated buildings shorten the construction cycle and reduce on-site work intensity by prefabricating building units into standardized modules in the factory and then transporting them to the site for assembly.
[0003] However, there are still some technical challenges when modular buildings are stacked and installed on site: First, the stacking positioning accuracy is insufficient: when adjacent modules are vertically aligned, manual calibration is often required, which is inefficient and prone to deviation, affecting the verticality and stability of the overall structure; Second, the reliability of the connection structure is poor: some existing structures rely solely on rigid fixing such as bolts for stacking connections, lacking guiding and pre-positioning structures, which makes it difficult to align modules during installation, and may even cause frame deformation due to forced alignment. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a stacked installation structure for prefabricated building modules, which is not only accurate in positioning and efficient in installation, but also reliable in connection and strong in structural stability.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A stacked installation structure for prefabricated building modules includes at least two longitudinally stacked main frames of building modules, each main frame of the building modules being cuboid in shape; connecting holes are provided at the four corners of the overlapping surfaces of adjacent main frames of building modules, and the connecting holes of the longitudinally adjacent upper and lower main frames of building modules are provided in a one-to-one correspondence; the stacked installation structure also includes positioning pins for positioning adjacent main frames of building modules.
[0007] Furthermore, the positioning pin has a cylindrical portion and a conical positioning portion connected to and located above the cylindrical portion. The cylindrical portion of the positioning pin is inserted into each of the four connection holes of the lower building module main frame. The lower surface of the conical positioning portion abuts against the overlapping surface of the lower building module main frame, and the conical positioning portion abuts against the inner wall of the connection hole of the upper building module main frame.
[0008] Furthermore, the main frame of the building module includes four rectangular columns, a first lower crossbeam and a second lower crossbeam connected to the lower end of the columns and arranged adjacently, and a first upper crossbeam and a second upper crossbeam connected to the upper end of the columns and arranged adjacently; wherein, the first lower crossbeam and the second lower crossbeam are detachably connected to the lower end of the corresponding columns through connectors, and the first upper crossbeam and the second upper crossbeam are detachably connected to the upper end of the corresponding columns through connectors.
[0009] Furthermore, the column is a square steel pipe, and end caps are fixedly connected to both the upper and lower ends of the column, with the connection hole opened in the end cap.
[0010] Furthermore, the connecting hole at the upper end and the connecting hole at the lower end of the same column are coaxially arranged.
[0011] Furthermore, the connector includes two channel steel parts that are fixedly connected to the column. The first lower crossbeam, the second lower crossbeam, the first upper crossbeam, and the second upper crossbeam are all channel steel with openings facing the inside of the frame. The ends of each crossbeam are respectively inserted into the channel steel parts at the ends of the corresponding columns, and the ends of each crossbeam are detachably connected to the corresponding channel steel parts by bolts.
[0012] Furthermore, the main frames of adjacent building modules are fixedly connected at the overlapping surface by bolts.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] First, precise positioning and high installation efficiency: By setting corresponding connection holes at the four corners of the overlapping surface of adjacent modules to form positioning holes, and with the help of positioning pins with cylindrical and conical positioning parts, rapid pre-positioning of longitudinal stacking is achieved; among them, the conical positioning part can guide the upper module to accurately connect with the lower module, reduce manual calibration steps, significantly improve the stacking installation efficiency, and avoid structural damage caused by positioning deviation.
[0015] Secondly, the connection is reliable and the structure is stable: the cylindrical part of the positioning pin is stably matched with the lower connecting hole, and the conical positioning part is tightly abutted with the upper connecting hole. Combined with the bolt fixing at the overlapping surface, a dual connection structure of "pre-positioning + rigid fixing" is formed, which greatly improves the longitudinal connection strength of adjacent modules and the overall structural stability, and meets the building's load-bearing and deformation resistance requirements. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of a stacked installation structure of a prefabricated building module according to this utility model.
[0017] Figure 2 This is a three-dimensional schematic diagram of the main frame of the building module of this utility model.
[0018] Figure 3 This is a partial exploded view of the main frame of the adjacent building modules of this utility model.
[0019] Figure 4 This is a schematic diagram of the main body of the column and connector of this utility model.
[0020] Figure 5 This is a three-dimensional schematic diagram of the positioning pin of this utility model. Detailed Implementation
[0021] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.
[0022] like Figures 1 to 5 As shown in the embodiment of this utility model, a stacked installation structure for prefabricated building modules includes at least two longitudinally stacked building module main frames 1, each of which is cuboid in shape. Connecting holes 2 are provided at the four corners of the overlapping surfaces of adjacent building module main frames 1. The connecting holes 2 of the longitudinally adjacent upper building module main frames 1 and lower building module main frames 1 are provided in a one-to-one correspondence. The stacked installation structure also includes positioning pins 4 for positioning adjacent building module main frames 1.
[0023] As described above, the positioning pin 4 has a cylindrical part 41 and a conical positioning part 42 connected to and located above the cylindrical part 41. The cylindrical part 41 of the positioning pin 4 is inserted into each of the four connection holes 2 of the lower building module main frame 1. The lower surface of the conical positioning part 42 abuts against the overlapping surface of the lower building module main frame 1, and the conical positioning part 42 abuts against the inner wall of the connection hole 2 of the upper building module main frame 1.
[0024] As described above, the main frame 1 of the building module includes four rectangular columns 11, a first lower crossbeam 12 and a second lower crossbeam 13 connected to the lower end of the columns 11 and arranged adjacently, and a first upper crossbeam 14 and a second upper crossbeam 15 connected to the upper end of the columns 11 and arranged adjacently; wherein, the first lower crossbeam 12 and the second lower crossbeam 13 are detachably connected to the lower end of the corresponding columns 11 through connectors 5, and the first upper crossbeam 14 and the second upper crossbeam 15 are detachably connected to the upper end of the corresponding columns 11 through connectors 5.
[0025] As described above, the column 11 is a square steel pipe, and end caps 16 are fixedly connected to both the upper and lower ends of the column 11. The connection hole 2 is opened in the end cap 16.
[0026] As described above, the connecting hole 2 at the upper end and the connecting hole 2 at the lower end of the same column 11 are coaxially arranged.
[0027] As described above, the connector 5 includes two channel steel parts 51 that are fixedly connected to the column 11. The first lower crossbeam 12, the second lower crossbeam 13, the first upper crossbeam 14 and the second upper crossbeam 15 are all channel steel with openings facing the inside of the frame. The ends of each crossbeam are respectively inserted into the channel steel parts 51 at the ends of the corresponding columns 11, and the ends of each crossbeam are detachably connected to the corresponding channel steel parts 51 by bolts.
[0028] As described above, the main frames 1 of adjacent building modules are fixedly connected at the overlapping surface by bolts.
[0029] The steps for longitudinally positioning the main frame of adjacent building modules are as follows:
[0030] Insert the cylindrical portions 41 of the four positioning pins 4 into the connecting holes 2 at the four corners of the lower module's overlapping surface, so that the lower surface of the conical positioning portion 42 abuts against the end cap of the lower building module's main frame 1; use lifting equipment to smoothly lift the upper module, and control the lifting equipment to slowly lower the upper building module's main frame 1, so that the connecting holes 2 at the four corners of the upper module's overlapping surface are aligned with the conical positioning portions 42 of the lower module; using the inclined guiding effect of the conical positioning portion 42, the connecting holes 2 of the upper building module's main frame 1 will automatically correct the horizontal deviation along the conical surface, and gradually fit the positioning pins 4, thus completing the longitudinal positioning of the adjacent building module's main frame.
[0031] The above description is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the scope of the present utility model patent application and the description of the utility model shall still fall within the scope of the present utility model patent.
Claims
1. A stacked installation structure for prefabricated building modules, characterized in that, The structure includes at least two longitudinally stacked building module main frames, each of which is cuboid in shape. Connecting holes are provided at the four corners of the overlapping surfaces of adjacent building module main frames. The connecting holes of the longitudinally adjacent upper and lower building module main frames correspond one-to-one. The stacked installation structure also includes positioning pins for positioning adjacent building module main frames.
2. The stacked installation structure of prefabricated building modules according to claim 1, characterized in that, The positioning pin has a cylindrical part and a conical positioning part connected to and located above the cylindrical part. The cylindrical part of the positioning pin is inserted into each of the four connection holes of the main frame of the lower building module. The lower surface of the conical positioning part abuts against the overlapping surface of the main frame of the lower building module, and the conical positioning part abuts against the inner wall of the connection hole of the main frame of the upper building module.
3. The stacked installation structure of a prefabricated building module according to claim 1 or 2, characterized in that, The main frame of the building module includes four rectangular columns, a first lower crossbeam and a second lower crossbeam connected to the lower end of the columns and arranged adjacent to each other, and a first upper crossbeam and a second upper crossbeam connected to the upper end of the columns and arranged adjacent to each other; wherein, the first lower crossbeam and the second lower crossbeam are detachably connected to the lower end of the corresponding columns by connectors, and the first upper crossbeam and the second upper crossbeam are detachably connected to the upper end of the corresponding columns by connectors.
4. The stacked installation structure of a prefabricated building module according to claim 3, characterized in that, The column is a square steel pipe, and end caps are fixedly connected to both the upper and lower ends of the column. The connection hole is opened in the end cap.
5. The stacked installation structure of a prefabricated building module according to claim 4, characterized in that, The connecting holes at the upper and lower ends of the same column are coaxially arranged.
6. The stacked installation structure of a prefabricated building module according to claim 4 or 5, characterized in that, The connector includes two channel steel parts that are fixedly connected to the column. The first lower crossbeam, the second lower crossbeam, the first upper crossbeam, and the second upper crossbeam are all channel steel with openings facing the inside of the frame. The ends of each crossbeam are respectively inserted into the channel steel parts at the ends of the corresponding columns, and the ends of each crossbeam are detachably connected to the corresponding channel steel parts by bolts.
7. The stacked installation structure of a prefabricated building module according to claim 1, characterized in that, The main frames of adjacent building modules are fixedly connected at the overlapping surface by bolts.