Bolt connection structure suitable for modular assembly type building structure

By adopting bolted connection structures in modular buildings, including prefabricated walls, embedded box connectors and anchored ring steel bars, the problems of long construction cycle, high cost and environmental pressure caused by the diverse connection methods of modular buildings are solved, and the simplicity and efficiency of construction is achieved, and the efficient utilization of resources is supported.

CN222632582UActive Publication Date: 2025-03-18GUANGDONG PREFABRICATED ARCHITECTURAL DESIGN INST CO LTD
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Patent Information

Application Number
CN202421418064.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-20
Publication Date
2025-03-18
Estimated Expiration
2034-06-20

AI Technical Summary

Technical Problem

Modular buildings are widely used in prefabricated buildings, and their connection methods are diverse, resulting in on-site secondary wet operations connections, resulting in long construction cycles, high construction costs, construction waste generation and environmental pressure.

Method used

A bolted connection structure suitable for modular prefabricated building structures is provided, including prefabricated walls, embedded box connectors, anchored annular reinforcement bars, inner liner plates and nuts, and is connected through grouting sleeves, double-headed bolts and sleeves.

Benefits of technology

This technical solution achieves simplicity and ease of connection at the construction site, reduces the number of on-site workers, reduces costs, improves the quality of construction, shortens the construction cycle, reduces environmental pollution, and supports remote relocation, detachable and reusable, greatly saving resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of assembly type modular building structures, and discloses a bolt connection structure suitable for a modular assembly type building structure, a first pre-embedded box type connecting piece is arranged in a first prefabricated wall body, and the outer side of the first pre-embedded box type connecting piece is fixedly connected with a first anchoring annular steel bar; a first inner lining liner plate is mounted in the first embedded box type connecting piece, a first nut is arranged above the first inner lining liner plate, and connecting assemblies are arranged on the first prefabricated wall body and the second prefabricated wall body; compared with a traditional wet operation connection mode, the bolt connection structure has the advantages that construction site connection is simple and easy to operate, the number of site workers is reduced, cost is reduced, building construction quality is improved, the construction period is shortened, environmental pollution is reduced, and the trouble of site wet operation is avoided; the device can be replaced and reused, resources are greatly saved, the later reuse rate is high, and the cost of one-time investment is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of assembled modular building structures, in particular to a bolt connection structure suitable for modular assembled building structures. Background Art

[0002] Prefabricated panel modular building systems are common in prefabricated buildings. Their advantages are flexibility, ease of assembly, ease of transportation, light weight, and strong adaptability to construction sites. However, the connection problems in modular construction are more difficult. The application of different types of modular buildings is different. The connection technology of panel modular buildings uses vertical component bolt connection, horizontal corner component bolt connection, and horizontal component bolt connection respectively; the integral modular building connection technology only uses vertical component bolt connection.

[0003] At present, modular buildings are widely used in prefabricated buildings, and their connection methods are diverse. The main reason is that many structural systems require secondary wet connection on site, which results in long construction period, high construction cost, construction waste generation and environmental pressure. Therefore, a bolt connection structure suitable for modular prefabricated building structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a bolt connection structure suitable for modular prefabricated building structures, so as to solve the problems mentioned in the above background technology that modular buildings are currently widely used in prefabricated buildings, and their connection methods are diverse, mainly because many structural systems require secondary wet operation connection on site, which results in long construction period, high construction cost, generation of construction waste and environmental pressure.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a bolt connection structure suitable for a modular assembled building structure, comprising a first prefabricated wall and a second prefabricated wall, a first embedded box-type connecting piece is arranged inside the first prefabricated wall, a first anchoring annular steel bar is fixedly connected to the outer side of the first embedded box-type connecting piece, a first inner lining plate is installed inside the first embedded box-type connecting piece, a first nut is arranged above the first inner lining plate, and connection components are arranged on the first prefabricated wall and the second prefabricated wall.

[0006] Preferably, the above-mentioned connecting assembly includes a grouting sleeve, a stud bolt and a sleeve, the grouting sleeve is fixedly connected to one end of the first embedded box-type connecting piece and is located inside the first prefabricated wall, one end of the stud bolt passes through the interior of the first embedded box-type connecting piece and the first inner lining plate in sequence and is threadedly connected to the interior of the first nut, the sleeve is fixedly connected to the interior of the second prefabricated wall, one end of the sleeve is fixedly connected to a sleeve extension, and one end of the sleeve extension is fixedly connected to an additional rib.

[0007] Preferably, the above-mentioned connecting assembly includes a first tension bolt and an embedded nut, one end of the first tension bolt passes through the interior of the first embedded box-type connecting piece and the first inner lining plate in sequence and is threadedly connected to the interior of the first nut, the interior of the second prefabricated wall is fixedly connected with the embedded nut, and the other end of the first tension bolt is threadedly connected to the interior of the embedded nut.

[0008] Preferably, the above-mentioned connection assembly includes a second embedded box-type connection piece, a second anchoring annular steel bar and a second tension bolt, one side of the first embedded box-type connection piece and the second embedded box-type connection piece are both provided with a through groove, the second tension bolt is placed inside and is threadedly connected to the inside of the first nut, the second embedded box-type connection piece is arranged inside the second prefabricated wall, the second anchoring annular steel bar is fixedly connected to the outside of the second prefabricated wall, a second inner lining plate is arranged inside the second embedded box-type connection piece, a second nut is arranged on one side of the second inner lining plate, and the second nut is threadedly connected to the outside of the second tension bolt.

[0009] Preferably, the other end of the stud bolt is connected to the inside of the sleeve via threads.

[0010] Preferably, the outer side of one end of the stud bolt is located inside the grouting sleeve.

[0011] Compared with the prior art, the utility model adopts the above technical scheme and has the following technical effects: different from the traditional wet operation connection method, the utility model has the advantages of simple and easy construction site connection, reducing the number of on-site workers, reducing costs, improving the quality of building construction, shortening the construction period, reducing environmental pollution, and eliminating the trouble of on-site wet operations. At the same time, after adopting this bolt connection method, users can relocate and dismantle it, replace and reuse it, which greatly saves resources, has a high reuse rate in the later stage, and reduces the cost of one-time investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a structural schematic diagram of the bolt connection method of the vertical member of the utility model;

[0014] Figure 2 This is a structural schematic diagram of the bolt connection method of the horizontal corner member of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the bolt connection method of the horizontal member of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of one side of the second embedded box-type connector of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the first inner liner plate of the utility model.

[0018] Explanation of the accompanying drawings: 1. first prefabricated wall; 2. second prefabricated wall; 3. first embedded box-type connector; 4. first inner lining plate; 5. first nut; 6. first anchoring annular steel bar; 71. grouting sleeve; 72. stud bolt; 73. sleeve; 74. sleeve extension; 75. additional reinforcement; 81. first tension bolt; 82. embedded nut; 91. second embedded box-type connector; 92. second anchoring annular steel bar; 93. through groove; 94. second tension bolt; 95. second inner lining plate; 96. second nut. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0021] Example 1

[0022] See also Figure 1 , Figure 5 The utility model provides a technical solution: a bolt connection structure suitable for modular assembled building structures, comprising a first prefabricated wall 1 and a second prefabricated wall 2, wherein a first embedded box-type connector 3 is arranged inside the first prefabricated wall 1, the first embedded box-type connector 3 provides stiffness transmission for horizontal or vertical bolt connection of two adjacent components, and provides an operating space inside when connecting upper and lower or left and right walls; a first anchoring annular steel bar 6 is fixedly connected to the outer side of the first embedded box-type connector 3, and the function of the first anchoring annular steel bar 6 is to increase the integrity of the first embedded box-type connector 3 and the anchoring effect in the wall; a first inner lining plate 4 is installed inside the first embedded box-type connector 3, and the function of the first inner lining plate 4 is to be placed in the first embedded box-type connector 3, and plays a role of fixing the bolts and a gasket for the nut; a first nut 5 is arranged above the first inner lining plate 4, and the function of the first nut 5 is to tighten the bolts between the walls; a connection component is arranged on the first prefabricated wall 1 and the second prefabricated wall 2.

[0023] The connection assembly includes a grouting sleeve 71, a stud bolt 72 and a sleeve 73. The grouting sleeve 71 is fixedly connected to one end of the first embedded box-type connector 3 and is located inside the first prefabricated wall 1. The function of the grouting sleeve 71 is to increase the anchoring length with the lower wall reinforcement and enhance the bond strength between the grouting material and the anchor reinforcement; one end of the stud bolt 72 passes through the first embedded box-type connector 3 and the first inner lining plate 4 in sequence and is connected to the inside of the first nut 5 through a thread. The function of the stud bolt 72 is to anchor one end into the sleeve 73 at the top of the foundation or the lower wall, and the other end into the lower grouting sleeve 71 of the upper wall, and the first nut 5 is connected to the first nut 5. Tighten; the sleeve 73 is fixedly connected to the inside of the second prefabricated wall 2, and the function of the sleeve 73 is to anchor into the foundation or the top of the lower wall to fix the stud 72; one end of the sleeve 73 is fixedly connected to a sleeve extension 74, and the function of the sleeve extension 74 is to increase the anchoring length of the sleeve 73 in the foundation or the top of the wall; one end of the sleeve extension 74 is fixedly connected to an additional rib 75, and the function of the additional rib 75 is to enhance the anchoring strength of the sleeve 73 and the sleeve extension 74 in the foundation or the top of the wall; the other end of the stud 72 is connected to the inside of the sleeve 73 by a thread, and the outer side of one end of the stud 72 is located inside the grouting sleeve 71.

[0024] The working principle or structural principle is that before the assembled building panel modular product is hoisted into place at the construction site, one end of the second prefabricated wall 2 is pre-tightened inside the sleeve 73, and the wall panel positioners on the first prefabricated wall 1 and the second prefabricated wall 2 are installed in place, and the elevation and verticality of the first prefabricated wall 1 and the second prefabricated wall 2 are leveled, and then the high-strength self-compacting concrete grouting material is poured into the grouting sleeve 71 in time, and after the first inner lining plate 4 is placed in the first embedded box-type connecting piece 3, the first nut 5 that is screwed in is tightened. After the entire layer of wall panels is adjusted into place and the flatness is accepted, the first prefabricated wall 1 is uniformly sealed with high-strength concrete to complete the assembly of the wall.

[0025] Example 2

[0026] See also Figure 2 , which is different from Example 1, is that: the connection assembly includes a first tension bolt 81 and an embedded nut 82, one end of the first tension bolt 81 passes through the first embedded box-type connector 3 and the first inner lining plate 4 in sequence and is connected to the inside of the first nut 5 by a thread, and the function of the first tension bolt 81 is to connect the embedded nut 82 and the integrity of the first embedded box-type connector 3 and the anchoring effect in the wall; the inside of the second prefabricated wall 2 is fixedly connected with the embedded nut 82, and the other end of the first tension bolt 81 is connected to the inside of the embedded nut 82 by a thread, and the function of the embedded nut 82 is to connect the corner wall component with the first embedded box-type connector 3.

[0027] The working principle or structural principle is that after the first prefabricated wall 1 and the second prefabricated wall 2 of the assembled building panel modular product are hoisted into place, the embedded nut 82 at the bolt connection of the horizontal corner member is aligned with the position of the first embedded box-type connector 3, the first tension bolt 81 is screwed in and the first inner lining plate 4 is placed, and then the first nut 5 is tightened. After the entire layer of wall panels is adjusted into place and the flatness is accepted, the first prefabricated wall 1 is uniformly sealed with high-strength concrete to complete the assembly of the wall.

[0028] Example 3

[0029] See also Figure 3-4 , which is different from embodiments 1 and 2, is that: the connection assembly includes a second embedded box-type connector 91, a second anchoring annular steel bar 92 and a second tension bolt 94, the function of the second embedded box-type connector 91 is to provide stiffness transmission for the horizontal or vertical bolt connection of two adjacent components, and the interior provides an operating space for connecting the upper and lower or left and right walls; a through groove 93 is provided on one side of the first embedded box-type connector 3 and the second embedded box-type connector 91, and the through groove 93 facilitates the connection of the second tension bolt 94; the second tension bolt 94 is placed inside and is connected to the inside of the first nut 5 by threading, and the function of the second tension bolt 94 is to complete the second nut 96 and the second embedded box-type connector. The integrity of the connection between the connecting piece 91 and the first nut 5 and the first embedded box-type connecting piece 3 and the anchoring effect in the wall; the second embedded box-type connecting piece 91 is arranged inside the second prefabricated wall 2, and the second anchoring annular steel bar 92 is fixedly connected to the outside of the second prefabricated wall 2. The function of the second anchoring annular steel bar 92 is to increase the integrity of the second embedded box-type connecting piece 91 and the anchoring effect in the wall; the second embedded box-type connecting piece 91 is arranged inside the second inner lining plate 95, and a second nut 96 is arranged on one side of the second inner lining plate 95, and the second nut 96 is connected to the outside of the second tension bolt 94 through a thread; the function of the second nut 96 is to tighten the bolts between the walls.

[0030] Working principle or structural principle, after the first prefabricated wall 1 and the second prefabricated wall 2 of the assembled building panel modular product are hoisted into place, after the first embedded box-type connector 3 and the second embedded box-type connector 91 at the connection point of the second tension bolt 94 of the horizontal member have been aligned, the second tension bolt 94 is placed in the through groove 93, and then the first inner lining plate 4 and the second inner lining plate 95 are respectively placed in the first embedded box-type connector 3 and the second embedded box-type connector 91, and the first nut 5 and the second nut 96 are screwed in and tightened. After the entire layer of wall panels is adjusted into place and the flatness is accepted, the first prefabricated wall 1 is uniformly sealed with high-strength concrete to complete the assembly of the wall.

[0031] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A bolt connection structure suitable for a modular assembled building structure, comprising a first prefabricated wall (1) and a second prefabricated wall (2), characterized in that: A first embedded box-type connecting piece (3) is arranged inside the first prefabricated wall (1); a first anchoring annular steel bar (6) is fixedly connected to the outer side of the first embedded box-type connecting piece (3); a first inner lining plate (4) is installed inside the first embedded box-type connecting piece (3); a first nut (5) is arranged above the first inner lining plate (4); and connecting components are arranged on the first prefabricated wall (1) and the second prefabricated wall (2).

2. A bolt connection structure suitable for modular assembled building structures according to claim 1, characterized in that: The connection assembly comprises a grouting sleeve (71), a stud bolt (72) and a sleeve (73); the grouting sleeve (71) is fixedly connected to one end of the first embedded box-type connection piece (3) and is located inside the first prefabricated wall (1); one end of the stud bolt (72) passes through the inside of the first embedded box-type connection piece (3) and the first inner lining plate (4) in sequence and is connected to the inside of the first nut (5) through a thread; the sleeve (73) is fixedly connected to the inside of the second prefabricated wall (2); one end of the sleeve (73) is fixedly connected to a sleeve extension piece (74); one end of the sleeve extension piece (74) is fixedly connected to an additional rib (75).

3. A bolt connection structure suitable for modular assembled building structure according to claim 1, characterized in that: The connection assembly comprises a first tension bolt (81) and an embedded nut (82), one end of the first tension bolt (81) passes through the interior of the first embedded box-type connecting piece (3) and the first inner lining plate (4) in sequence and is connected to the interior of the first nut (5) via a thread, the interior of the second prefabricated wall (2) is fixedly connected with the embedded nut (82), and the other end of the first tension bolt (81) is connected to the interior of the embedded nut (82) via a thread.

4. A bolt connection structure suitable for modular assembled building structure according to claim 1, characterized in that: The connection assembly comprises a second embedded box-type connection piece (91), a second anchoring annular steel bar (92) and a second tension bolt (94); a through groove (93) is provided on one side of the first embedded box-type connection piece (3) and the second embedded box-type connection piece (91); the second tension bolt (94) is placed inside and is connected to the inside of the first nut (5) by threading; the second embedded box-type connection piece (91) is arranged inside the second prefabricated wall (2); the second anchoring annular steel bar (92) is fixedly connected to the outside of the second prefabricated wall (2); a second inner lining plate (95) is provided inside the second embedded box-type connection piece (91); a second nut (96) is provided on one side of the second inner lining plate (95); and the second nut (96) is connected to the outside of the second tension bolt (94) by threading.

5. The bolt connection structure suitable for modular assembled building structure according to claim 2, characterized in that: The other end of the stud bolt (72) is connected to the interior of the sleeve (73) via a thread.

6. The bolt connection structure suitable for modular assembled building structure according to claim 2, characterized in that: The outer side of one end of the stud bolt (72) is located inside the grouting sleeve (71).