Bolt mounting node for full-decoration module building and assembly of bolt mounting node

By combining bolt installation nodes in fully furnished modular buildings, the installation problem in confined spaces is solved, enabling fast and low-cost connection of fully furnished modules. The structure is compact and uses less steel.

CN223984118UActive Publication Date: 2026-03-10DECORATION CO LTD OF CHINA CONSTR 3RD ENG BUREAU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

At the corner joints of beams and columns within the frame modules of a fully furnished modular system, traditional bolt connections are inconvenient due to limited space, and the traditional method involves a large amount of steel used in the module joints, resulting in high costs.

Method used

The system employs a combination structure of upper connector, lower connector, and horizontal connecting plate, along with long bolts, positioning shear cones, and variable cross-section sleeves, to achieve rapid installation of the fully furnished modules.

Benefits of technology

It enables rapid installation of fully furnished modules in confined spaces, reducing construction space requirements and costs, improving construction efficiency, and featuring a compact structure with minimal steel consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a full-decoration module building bolt installation node and an assembly thereof. The node comprises an upper half connector, a lower half connector, a horizontal connecting plate and a long bolt; the positioning anti-shear cone of the upper half connector is inserted into the positioning anti-shear cone penetrating hole of the lower half connector; an embedded long bolt is inserted from the bolt hole of the upper half connector, and the long bolt enters the lower half connector through the through hole of the horizontal connecting plate to achieve connection. The assembly comprises the node and a plurality of limiting blocks, the limiting blocks limit the height of the long bolt when the node is installed, and after the limiting blocks are pulled out, the long bolt naturally faces downwards to achieve connection of the upper half connector and the lower half connector. According to the utility model, the installation problem of a full-decoration module structure is solved, the requirement on the construction space is low, the problem that long bolts are inconvenient to install is solved, and the construction efficiency is effectively improved; and the steel consumption of the module joints is small, the structure is compact, the construction cost is effectively reduced, and the practicability is high.
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Description

Technical Field

[0001] This utility model belongs to the field of building decoration technology, and particularly relates to the installation of fully furnished modular buildings, specifically a bolt installation node and its components for fully furnished modular buildings. Background Technology

[0002] In the construction field, common modular structural connection nodes in frame structures require a relatively large operating space to complete the connection. This is especially true for the corner nodes of beams and columns within a frame module, where bolted connections further demand ample space.

[0003] For fully furnished modules, the interior decoration is already completed, making large-scale demolition and reconstruction unsuitable. The available construction space is extremely limited, and installation at the corner joints of beams and columns within the frame module is particularly difficult, with long bolts proving inconvenient. Furthermore, traditional methods require a large amount of steel for module joints, resulting in high costs. Therefore, developing simple, fast, and practical bolt installation joints for fully furnished modular buildings is essential. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a bolt installation node and its components for fully furnished modular buildings. This purpose is achieved through the following technical solution.

[0005] A bolt installation node for a fully furnished modular building, the fully furnished modular building including an upper module and a lower module, the installation node including an upper half connector disposed at the lower corner of the upper module, a lower half connector disposed at the upper corner of the lower module, a horizontal connecting plate and a long bolt;

[0006] The upper connector includes a first upper plate, a first lower plate, two sets of symmetrically arranged first vertical components welded vertically between the first upper plate and the first lower plate, and a positioning anti-shear cone welded to the lower end of the first lower plate; the first upper plate and the first lower plate are both L-shaped, with the same external dimensions, parallel and correspondingly arranged; each set of first vertical components includes: a first center plate welded at the right-angle corner of the L-shape, a first stiffening rib welded at the end of the L-shape, a first center web plate and a variable cross-section sleeve arranged in sequence and spaced apart to connect the first stiffening rib and the first center plate, and bolt holes corresponding to the variable cross-section sleeve are respectively provided on the first upper plate and the first lower plate;

[0007] The lower connector includes a second upper plate, a second lower plate, and two sets of symmetrically arranged second vertical components welded vertically between the second upper plate and the second lower plate. The second upper plate and the second lower plate are both L-shaped, with the same external dimensions, parallel and correspondingly arranged. Each set of second vertical components includes: a second center plate welded at the right-angle corner of the L-shape, a second stiffening rib welded at the end of the L-shape, a second center web plate and a semi-tapping sleeve arranged in sequence and spaced apart to connect the second stiffening rib and the second center plate. The second upper plate is provided with bolt holes corresponding to the semi-tapping sleeve and positioning anti-shear cone insertion holes corresponding to the positioning anti-shear cone. The bolt holes of the second upper plate correspond to the bolt holes of the first upper plate and the first lower plate.

[0008] The horizontal connecting plate is disposed above each lower half connector of the lower module, and the horizontal connecting plate is provided with through holes corresponding to the positioning anti-shear cone insertion hole and bolt hole in the second upper plate;

[0009] The positioning anti-shear cone is inserted into the positioning anti-shear cone penetration hole; the pre-embedded long bolt is inserted from the bolt hole of the first upper plate, and the long bolt passes through the variable cross-section sleeve, the bolt hole of the first lower plate, the through hole of the horizontal connecting plate, and the bolt hole of the second upper plate to enter the semi-tapping sleeve to connect the upper half connector and the lower half connector.

[0010] For the optimization of the upper connector, each group of first vertical components has a pair of vertically connected first center plates; the two pairs of first center plates of the two groups of first vertical components are welded at the right-angle corner of the L-shape to form a cuboid with a square cross-section, and the center of the positioning anti-shear cone corresponds to the center line of the cuboid.

[0011] Furthermore, each group of first vertical components has three first central web plates and two variable cross-section sleeves, and the first central web plates and variable cross-section sleeves are welded together; the first central web plates and variable cross-section sleeves are welded together with the first upper plate and the first lower plate.

[0012] Furthermore, the variable cross-section sleeve is composed of upper and lower sleeve sections, with the inner diameter of the upper sleeve section being larger than that of the lower sleeve section; the long bolt is fitted with a washer, with the inner diameter of the upper sleeve section being larger than that of the washer of the long bolt.

[0013] For the optimization of the lower connector, each group of second vertical components has a pair of vertically connected second center plates. The two pairs of second center plates of the two groups of second vertical components are welded together at the right-angle corner of the L-shape to form a cuboid with a square cross-section. The center of the positioning anti-shear cone insertion hole corresponds to the center line of the cuboid.

[0014] Furthermore, each group of second vertical components has three second central web plates and two semi-tapping sleeves, and the second central web plates and semi-tapping sleeves are welded together; the second central web plates and semi-tapping sleeves are welded together with the second upper plate and the second lower plate.

[0015] Furthermore, the semi-tapping sleeve is composed of upper and lower sleeve sections. The inner diameter of the upper sleeve section is larger than that of the lower sleeve section. The upper sleeve section is used for tapping, and the tapping of the upper sleeve section matches the thread of the long bolt.

[0016] For the optimization of the horizontal connecting plate, the horizontal connecting plate is a pentagon formed by removing one corner of a rectangle, including four right-angled sides and one hypotenuse connected in sequence. The horizontal connecting plate is an axisymmetric figure with the line connecting the midpoint of the hypotenuse to its opposite right-angle vertex as the axis of symmetry. The horizontal connecting plate is provided with a through hole corresponding to the positioning anti-shear cone insertion hole, and two through holes on each side corresponding to the bolt holes.

[0017] A bolt installation node assembly for a fully furnished modular building includes the bolt installation node and multiple limiting blocks. When the node is installed, the limiting blocks are engaged between the first upper plate of the upper connector and the bolt head of the long bolt to limit the height of the long bolt. After the limiting blocks are removed, the long bolt naturally slides downward through the variable cross-section sleeve, the bolt hole of the first lower plate, the through hole of the horizontal connecting plate, and the bolt hole of the second upper plate into the upper and lower connectors of the semi-tapping sleeve.

[0018] The advantages and beneficial effects of this utility model are:

[0019] This utility model discloses a bolt installation node and its components for fully furnished modular buildings, enabling the installation of pre-embedded bolts within the skirting board. This utility model addresses the pain points of installing fully furnished modular structures, requiring less construction space and solving the problem of inconvenient installation of long bolts, effectively improving construction efficiency. Furthermore, the modular node uses less steel, has a compact structure, effectively reducing construction costs and demonstrating strong practicality. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of a fully furnished building module;

[0022] Figure 2 A schematic diagram of the overall frame structure of a fully furnished building module;

[0023] Figure 3 A schematic diagram showing the completed installation of the bolt-mounted node structure;

[0024] Figure 4This is a schematic diagram of the overall structure of the upper connector;

[0025] Figure 5 This is a schematic diagram of the disassembled structure of the upper connector;

[0026] Figure 6 This is a schematic diagram of the fit between a variable cross-section sleeve and a long bolt.

[0027] Figure 7 This is a schematic diagram of the disassembled structure of the lower connector;

[0028] Figure 8 This is a schematic diagram of a horizontal connecting plate structure.

[0029] Figure 9 This is a schematic diagram of the limit block structure in an incomplete installation state;

[0030] Figure 10 This is a schematic diagram of the structure after the limit block has been removed during installation.

[0031] 1. Upper connector; 11. First upper plate; 12. First lower plate; 13. Positioning shear cone; 14. First center plate; 15. First stiffening rib; 16. First center web plate; 17. Variable cross-section sleeve; 2. Lower connector; 21. Second upper plate; 22. Second lower plate; 23. Positioning shear cone insertion hole; 24. Second center plate; 25. Second stiffening rib; 26. Second center web plate; 27. Semi-tapping sleeve; 3. Horizontal connecting plate; 4. Long bolt; 5. Limiting block. Detailed Implementation

[0032] Example 1:

[0033] A bolt installation node for fully furnished modular buildings, such as Figure 1 , 2 As shown, the fully furnished modular building includes an upper module and a lower module, as follows: Figure 3 As shown, the installation node includes an upper connector 1 located at the lower corner of the upper module, a lower connector 2 located at the upper corner of the lower module, a horizontal connecting plate 3, and a long bolt 4; the horizontal connecting plate 3 is located between the upper connector 1 and the lower connector 2.

[0034] like Figure 4 , 5As shown, the upper connector 1 includes a first upper plate 11, a first lower plate 12, two sets of symmetrically arranged first vertical components vertically welded between the first upper plate 11 and the first lower plate 12, and a positioning anti-shear cone 13 welded to the lower end of the first lower plate 12; the first upper plate 11 and the first lower plate 12 are both L-shaped, with the same external dimensions, parallel and correspondingly arranged; each set of first vertical components includes: a first center plate 14 welded at the right-angle corner of the L-shape, a first stiffening rib 15 welded at the end of the L-shape, a first center web plate 16 and a variable cross-section sleeve 17 arranged in sequence and spaced apart to connect the first stiffening rib 15 and the first center plate 14, and bolt holes corresponding to the variable cross-section sleeve 17 are respectively provided on the first upper plate 11 and the first lower plate 12.

[0035] In this embodiment, each group of first vertical components has a pair of vertically connected first center plates 14; the two pairs of first center plates 14 of the two groups of first vertical components are welded at the right-angle corner of the L-shape to form a cuboid with a square cross-section, and the center of the positioning shear cone 13 corresponds to the center line of the cuboid. Each group of first vertical components has 3 first central web plates 16 and 2 variable cross-section sleeves 17, and the first central web plates 16 and variable cross-section sleeves 17 are welded together; the first central web plates 16 and variable cross-section sleeves 17 are welded together with the first upper plate 11 and the first lower plate 12.

[0036] like Figure 6 As shown, the variable cross-section sleeve 17 is composed of upper and lower sleeve sections, with the inner diameter of the upper sleeve section being larger than that of the lower sleeve section; the long bolt 4 is fitted with a gasket, with the inner diameter of the upper sleeve section being larger than that of the gasket of the long bolt 4; the inner diameter of the lower sleeve section is the inner diameter of the long bolt + 2 times the module installation tolerance, and is smaller than the outer diameter of the gasket - 2 times the module installation tolerance.

[0037] like Figure 7 As shown, the lower connector 2 includes a second upper plate 21, a second lower plate 22, and two sets of symmetrically arranged second vertical components vertically welded between the second upper plate 21 and the second lower plate 22. The second upper plate 21 and the second lower plate 22 are both L-shaped, with the same external dimensions, and are parallel and correspondingly arranged. Each set of second vertical components includes: a second center plate 24 welded at the right-angle corner of the L-shape, a second stiffening rib 25 welded at the end of the L-shape, a second center web plate 26 and a semi-tapping sleeve 27 arranged in sequence and spaced apart to connect the second stiffening rib 25 and the second center plate 24. The second upper plate 21 is provided with bolt holes corresponding to the semi-tapping sleeve 27 and positioning anti-shear cone insertion holes 23 corresponding to the positioning anti-shear cone 13. The bolt holes of the second upper plate 21 correspond to the bolt holes of the first upper plate 11 and the first lower plate 12.

[0038] In this embodiment, each group of second vertical components has a pair of vertically connected second center plates 24. The two pairs of second center plates 24 of the two groups of second vertical components are welded together at the right-angle corner of the L-shape to form a cuboid with a square cross-section. The center of the positioning anti-shear cone insertion hole 23 corresponds to the center line of the cuboid. Each group of second vertical components has 3 second center web plates 26 and 2 semi-tapping sleeves 27. The second center web plates 26 and semi-tapping sleeves 27 are welded together. The second center web plates 26 and semi-tapping sleeves 27 are welded together with the second upper plate 21 and the second lower plate 22. The semi-tapping sleeve 27 is composed of upper and lower sleeve sections. The inner diameter of the upper sleeve section is larger than that of the lower sleeve section. The upper sleeve section is tapped, and the tapping of the upper sleeve section matches the thread of the long bolt 4.

[0039] like Figure 8 As shown, the horizontal connecting plate 3 is disposed above each lower half connector 2 of the lower module. The horizontal connecting plate 3 is provided with through holes corresponding to the positioning anti-shear cone insertion hole 23 and the bolt hole in the second upper plate 21. In this embodiment, the horizontal connecting plate 3 is a pentagon formed by removing one corner of a rectangle, including four right-angled sides and one hypotenuse connected in sequence. The horizontal connecting plate 3 is an axisymmetric figure with the line connecting the midpoint of the hypotenuse and its opposite right-angle vertex as the axis of symmetry. The horizontal connecting plate 3 is provided with one through hole corresponding to the positioning anti-shear cone insertion hole 23, and two through holes on each side corresponding to the bolt holes.

[0040] The positioning anti-shear cone 13 is inserted into the positioning anti-shear cone penetration hole 23; the pre-embedded long bolt 4 is inserted from the bolt hole of the first upper plate 11, and the long bolt 4 passes through the variable cross section sleeve 17, the bolt hole of the first lower plate 12, the through hole of the horizontal connecting plate 3, and the bolt hole of the second upper plate 21 to enter the semi-tapping sleeve 27 to connect the upper half connector 1 and the lower half connector 2.

[0041] Example 2

[0042] Including the bolt installation node of the fully furnished modular building as described in Example 1 and at least two limiting blocks 5, such as Figure 9 As shown, the limiting block 5, during the installation of the node, is positioned between the first upper plate 11 of the upper connector 1 and the bolt head of the long bolt 4, limiting the height of the long bolt 4. The pre-embedded long bolt 4 is located within the skirting board. After removing the limiting block 5, as shown... Figure 10 As shown, the long bolt 4 slides naturally downwards through the bolt holes of the variable cross-section sleeve 17, the first lower plate 12, the through hole of the horizontal connecting plate 3, and the bolt hole of the second upper plate 21 into the semi-tapping sleeve 27, connecting the upper connector 1 and the lower connector 2. Tightening completes the installation. The limiting block 5 can have various configurations, preferably made of elastic material, with a non-perforated lower part to prevent the long bolt from falling. This component enables rapid installation of nodes and facilitates construction in confined spaces.

[0043] Finally, it should be noted that the above is only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the preferred arrangement, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model.

Claims

1. A fully finished modular building bolted installation node, the fully finished modular building comprising an upper module and a lower module, characterized in that, The installation node comprises an upper half connector (1) arranged at the upper end corner of the upper module, a lower half connector (2) arranged at the lower end corner of the lower module, a horizontal connecting plate (3) and a long bolt (4); The upper half connector (1) comprises a first upper flat plate (11), a first lower flat plate (12), two groups of symmetrically arranged first vertical components vertically welded between the first upper flat plate (11) and the first lower flat plate (12), and a positioning shear-resistant cone (13) welded at the lower end of the first lower flat plate (12); the first upper flat plate (11) and the first lower flat plate (12) are both L-shaped, have the same external dimensions, are parallel and correspondingly arranged; each group of first vertical components comprises a first center plate (14) welded at the right-angled corner of the L-shaped plate, a first stiffener (15) welded at the end point of the L-shaped plate, a first center web (16) and a variable cross-section sleeve (17) sequentially and intervally arranged and connected with the first stiffener (15) and the first center plate (14), and the first upper flat plate (11) and the first lower flat plate (12) are respectively provided with bolt holes corresponding to the variable cross-section sleeve (17); The lower half connector (2) comprises a second upper flat plate (21), a second lower flat plate (22) and two groups of symmetrically arranged second vertical components vertically welded between the second upper flat plate (21) and the second lower flat plate (22); the second upper flat plate (21) and the second lower flat plate (22) are both L-shaped, have the same external dimensions, are parallel and correspondingly arranged; each group of second vertical components comprises a second center plate (24) welded at the right-angled corner of the L-shaped plate, a second stiffener (25) welded at the end point of the L-shaped plate, a second center web (26) and a half-tapped sleeve (27) sequentially and intervally arranged and connected with the second stiffener (25) and the second center plate (24), the second upper flat plate (21) is provided with bolt holes corresponding to the half-tapped sleeve (27) and positioning shear-resistant cone penetrating holes (23) corresponding to the positioning shear-resistant cone (13); the bolt holes of the second upper flat plate (21) correspond to the bolt holes of the first upper flat plate (11) and the first lower flat plate (12); The horizontal connecting plate (3) is arranged above each lower half connector (2) of the lower module, and the horizontal connecting plate (3) is provided with through holes corresponding to the positioning shear-resistant cone penetrating holes (23) and the bolt holes in the second upper flat plate (21); The positioning shear-resistant cone (13) is inserted into the positioning shear-resistant cone penetrating hole (23); the long bolt (4) is inserted from the bolt hole of the first upper flat plate (11), passes through the variable cross-section sleeve (17), the bolt hole of the first lower flat plate (12), the through hole of the horizontal connecting plate (3), the bolt hole of the second upper flat plate (21) and is connected into the half-tapped sleeve (27) to connect the upper half connector (1) and the lower half connector (2).

2. The fully finished modular construction bolted joint of claim 1, wherein, The long bolt (4) is pre-buried in the skirting line.

3. The fully finished modular construction bolted joint of claim 1, wherein, Each group of first vertical components has a pair of vertically connected first center plates (14); the two pairs of first center plates (14) of the two groups of first vertical components are welded at the right-angle corners of the L-shaped to form a cuboid with a square cross section, and the center of the positioning shear cone (13) corresponds to the center line of the cuboid.

4. The fully finished modular construction bolted joint of claim 1, wherein, In each group of first vertical components, the first center web (16) is provided with three variable cross-section sleeves (17), and the first center web (16) and the variable cross-section sleeve (17) are welded; the first center web (16) and the variable cross-section sleeve (17) are welded with the first upper plate (11) and the first lower plate (12).

5. The fully finished modular construction bolted joint of claim 1, wherein, The variable cross-section sleeve (17) is composed of upper and lower sleeves, the inner diameter of the upper sleeve is larger than that of the lower sleeve; the long bolt (4) is sleeved with a gasket, and the inner diameter of the upper sleeve is larger than the outer diameter of the gasket of the long bolt (4).

6. The fully finished modular construction bolted joint of claim 1, wherein, Each group of second vertical components has a pair of vertically connected second center plates (24), and the two pairs of second center plates (24) of the two groups of second vertical components are welded at the right-angle corners of the L-shaped to form a cuboid with a square cross section, and the center of the positioning shear cone (13) corresponds to the center line of the cuboid.

7. The fully finished modular construction bolted joint of claim 1, wherein, In each group of second vertical components, the second center web (26) is provided with three half-tapped sleeves (27), and the second center web (26) and the half-tapped sleeve (27) are welded; the second center web (26) and the half-tapped sleeve (27) are welded with the second upper plate (21) and the second lower plate (22).

8. The fully finished modular construction bolted joint of claim 1, wherein, The half-tapped sleeve (27) is composed of upper and lower sleeves, the inner diameter of the upper sleeve is larger than that of the lower sleeve, the upper sleeve is tapped, and the tapping of the upper sleeve matches the threads of the long bolt (4).

9. The fully finished modular construction bolted joint of claim 1, wherein, The horizontal connecting plate (3) is a pentagon formed by removing one corner of a rectangle, including four straight edges connected in turn and one oblique edge, and the horizontal connecting plate (3) is an axisymmetric figure, with the connecting line of the midpoint of the oblique edge and the opposite right-angle vertex as the axis of symmetry, the horizontal connecting plate (3) is provided with a through hole corresponding to the positioning shear cone penetration hole (23), and two through holes corresponding to the bolt hole on each side.

10. A fully finished modular building bolted node assembly, characterized by, The full-finished module building bolt installation node of any one of claims 1-9 and a plurality of limiting blocks (5) are included, the limiting blocks (5) are clamped between the first upper plate (11) of the upper half connector (1) and the bolt cap of the long bolt (4) to limit the height of the long bolt (4) during installation of the node, after the limiting blocks (5) are pulled out, the long bolt (4) naturally slides downward through the variable cross-section sleeve (17), the bolt hole of the first lower plate (12), the through hole of the horizontal connecting plate (3), the bolt hole of the second upper plate (21), and the half-tapped sleeve (27) of the lower half connector (2) of the upper half connector (1).