Novel fabricated building connection node structure
By introducing control plates and positioning plates into the connection nodes of prefabricated buildings, the problems of bolt hole deviation and uneven stress on built-in screws caused by the swaying of prefabricated beams were solved, improving installation efficiency and quality and extending the service life of the building.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 天津仁爱学院
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-17
AI Technical Summary
In existing prefabricated building connection node structures, the swaying of prefabricated beams causes deviations in bolt hole positions, affecting the accuracy of component docking and bolt insertion. Furthermore, building vibrations cause uneven stress on the internal screws, reducing their service life.
The system employs a control clamp and positioning plate structure. Through the cooperation of a fixed baffle, connecting slide rod, and compression spring, it clamps and fixes the fixed vertical plate and the installation horizontal plate, and positions the bolt holes. The positioning groove of the positioning plate positions the built-in screw, ensuring accurate positioning during the pouring process and uniform force on the built-in screw after connection.
It reduces installation errors, improves the efficiency and quality of component docking, avoids installation difficulties caused by bolt hole deviations, and extends the service life of buildings.
Smart Images

Figure CN224133940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated building technology, and in particular to a novel prefabricated building connection node structure. Background Technology
[0002] Connection node structures in prefabricated buildings are a key component of prefabricated buildings and are widely used in prefabricated steel structure buildings and some prefabricated concrete buildings, such as steel structure beam-column connections and connections between prefabricated concrete exterior wall panels and the main structure.
[0003] When using existing prefabricated building connection node structures, the prefabricated beams are suspended in the air during hoisting. Their swaying can cause the bolt hole positions to deviate, resulting in components not being able to be accurately connected and bolts not being able to be smoothly inserted, affecting assembly efficiency. Moreover, building vibrations can cause uneven stress on the built-in screws of prefabricated composite columns, making it difficult to effectively transfer loads and potentially causing the built-in screws to loosen, thus reducing the service life of the building. Utility Model Content
[0004] This utility model relates to a novel connection node structure for prefabricated buildings, wherein a control clamping plate clamps and fixes the fixed vertical plate and the installation horizontal plate, enabling the bolt holes of the fixed vertical plate and the mating insert plate to be positioned, which helps to reduce installation errors and avoid problems such as components not being able to be accurately connected or bolts not being able to be smoothly inserted due to bolt hole position deviations, thereby improving installation efficiency and quality.
[0005] This utility model provides a novel prefabricated building connection node structure, specifically including: a steel structure connector, wherein the steel structure connector has prefabricated crossbeams on both the left and right sides, and the prefabricated crossbeams on the left and right sides are distributed symmetrically; two control clamps are provided at the connection points between the prefabricated crossbeams and the steel structure connector, and the two control clamps are distributed in a vertically parallel manner; a prefabricated column is provided at the bottom of the steel structure connector; a positioning plate is provided inside the prefabricated column near the top position;
[0006] The steel structure connector has connecting plates at both ends, and the two connecting plates are symmetrically distributed, and the connecting plates have a rectangular frame structure.
[0007] Furthermore, the steel structure connector is provided with a mating plate at the middle position of both ends, and fixed baffles are provided at the upper and lower ends of the mating plate, with the two fixed baffles distributed symmetrically.
[0008] Furthermore, the precast beam has a first built-in steel bar inside, and two fixed vertical plates are provided at the ends of the precast beam. The two fixed vertical plates are distributed symmetrically, and the upper and lower ends of the two fixed vertical plates are provided with mounting horizontal plates.
[0009] Furthermore, the control clamp is provided with a limiting groove in the middle position, and the control clamp is provided with two connecting slide rods, which are distributed in a vertical parallel manner, and a compression spring is fitted on the connecting slide rod.
[0010] Furthermore, the control clamp is slidably connected to the fixed vertical plate through a limiting groove, and the connecting slide rod slides through the fixed baffle, and the compression spring is supported between the fixed baffle and the control clamp.
[0011] Furthermore, when the prefabricated crossbeam is connected to the steel structure connector, the mating plate is set between the two fixed vertical plates and controlled by bolt tightening to ensure that the clamping plate contacts the installation crossbeam and is also controlled by bolt tightening.
[0012] Furthermore, the precast column is provided with a second built-in steel bar inside, and a built-in screw is provided at the top position inside the precast column. The built-in screws are distributed in a rectangular array. The bottom end of the built-in screw is provided with a base plate, and the top end of the built-in screw is fixedly connected to the connecting plate by a nut.
[0013] Furthermore, the positioning plates are distributed in two parallel positions, and the positioning plates have a rectangular frame structure. Connecting rods are provided between the four diagonal points of the two positioning plates. Positioning grooves are provided on the inner side of the positioning plates, and the internal screws correspond to the positions of the positioning grooves.
[0014] This utility model provides a novel connection node structure for prefabricated buildings, which has the following beneficial effects:
[0015] This utility model includes a control clamp plate. Through the cooperation of a fixed baffle and a connecting slide rod, and by utilizing the elasticity of a compression spring, the control clamp plate can clamp and fix the fixed vertical plate and the mounting horizontal plate. This allows for the positioning of the bolt holes of the fixed vertical plate and the mating insert plate, which helps to reduce installation errors and avoid problems such as inaccurate component alignment and bolt insertion failure caused by bolt hole position deviations, thereby improving installation efficiency and quality.
[0016] Furthermore, this utility model includes a positioning plate. The positioning groove of the positioning plate positions the built-in screw, which can effectively prevent the position of the built-in screw from shifting during the casting process of the precast column. Moreover, after the precast column is connected to the steel structure connector, the built-in screw can be evenly stressed within the precast column, effectively transferring the load, reducing the possibility of the built-in screw loosening during the use of the structure, and extending the service life of the building. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0018] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0019] In the attached diagram:
[0020] Figure 1 This shows a schematic diagram of the overall axial view structure of this application;
[0021] Figure 2 This paper shows a schematic diagram of the steel structure connector and control clamp in a disassembled state according to the present application.
[0022] Figure 3 This paper shows a schematic diagram of the prefabricated crossbeam and control clamp in a disassembled state according to the present application.
[0023] Figure 4 This paper shows a schematic diagram of the top cross-sectional view of the prefabricated column of this application;
[0024] Figure 5 A schematic diagram of the structure of the built-in screw and positioning plate in the disassembled state of this application is shown.
[0025] List of reference numerals in the attached diagram:
[0026] 1. Steel structure connectors; 101. Connecting plate; 102. Butt joint plate; 103. Fixing baffle; 2. Precast crossbeam; 201. First internal reinforcing bar; 202. Fixing vertical plate; 203. Installing horizontal plate; 3. Control clamp; 301. Limiting groove; 302. Connecting slide rod; 303. Compression spring; 4. Precast column; 401. Second internal reinforcing bar; 402. Internal screw rod; 403. Base plate; 5. Positioning plate; 501. Connecting rod; 502. Positioning groove. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] Example 1: Please refer to Figures 1 to 5 :
[0029] This utility model proposes a novel prefabricated building connection node structure, including: a steel structure connector 1, with prefabricated crossbeams 2 on both the left and right sides of the steel structure connector 1, and the prefabricated crossbeams 2 on both the left and right sides are distributed symmetrically; two control clamps 3 are provided at the connection points between the two prefabricated crossbeams 2 and the steel structure connector 1, and the two control clamps 3 are distributed in a vertically parallel manner; a prefabricated column 4 is provided at the bottom of the steel structure connector 1; a positioning plate 5 is provided inside the prefabricated column 4 near the top position;
[0030] The steel structure connector 1 has connecting plates 101 at both the upper and lower ends, and the two connecting plates 101 are distributed symmetrically, and the connecting plates 101 have a rectangular frame structure.
[0031] In this embodiment, as Figure 2 and Figure 3 As shown, the steel structure connector 1 has a mating plate 102 at the middle position of both ends on the left and right sides, and a fixing baffle 103 at the upper and lower ends of the mating plate 102, and the two fixing baffles 103 are distributed symmetrically.
[0032] The precast beam 2 has a first built-in steel bar 201 inside, and two fixed vertical plates 202 are provided at the ends of the precast beam 2. The two fixed vertical plates 202 are distributed symmetrically, and the upper and lower ends of the two fixed vertical plates 202 are provided with mounting horizontal plates 203.
[0033] The control clamp 3 has a limiting groove 301 in the middle position, and two connecting slide rods 302 are provided on the control clamp 3. The two connecting slide rods 302 are distributed in a vertical parallel manner, and a compression spring 303 is fitted on the connecting slide rod 302.
[0034] The control clamp 3 is slidably connected to the fixed vertical plate 202 through the limiting groove 301, and the connecting slide rod 302 slides through the fixed baffle 103, and the compression spring 303 is supported between the fixed baffle 103 and the control clamp 3.
[0035] When the precast crossbeam 2 is connected to the steel structure connector 1, the mating plate 102 is set between the two fixed vertical plates 202 and controlled by bolt locking. The control clamp 3 contacts the installation horizontal plate 203 and is also controlled by bolt locking. In this utility model, the control clamp 3 is provided. Through the cooperation of the fixed baffle 103 and the connecting slide rod 302, and by utilizing the elasticity of the compression spring 303, the control clamp 3 can clamp and fix the fixed vertical plate 202 and the installation horizontal plate 203, and can position the bolt holes of the fixed vertical plate 202 and the mating plate 102, so that the bolts can be smoothly inserted.
[0036] Example 2, based on Example 1, such as Figure 4 and Figure 5As shown, the precast column 4 is provided with a second built-in steel bar 401 inside, and a built-in screw 402 is provided at the top position inside the precast column 4. The built-in screws 402 are distributed in a rectangular array. The bottom end of the built-in screw 402 is provided with a base plate 403, and the top end of the built-in screw 402 is fixedly connected to the connecting plate 101 by a nut.
[0037] The positioning plates 5 are distributed in two parallel positions, and the positioning plates 5 are rectangular frame structures. Connecting rods 501 are provided between the four diagonal corners of the two positioning plates 5. The positioning plates 5 have positioning grooves 502 on their inner sides, and the built-in screws 402 are positioned corresponding to the positioning grooves 502. In this utility model, the positioning plates 5 are provided. The built-in screws 402 are positioned by the positioning grooves 502 of the positioning plates 5. This can effectively prevent the position of the built-in screws 402 from shifting during the casting process of the precast column 4. Moreover, after the precast column 4 is connected to the steel structure connector 1, the built-in screws 402 can be evenly stressed in the precast column 4.
[0038] The working principle of this embodiment is as follows: In use, the fixed baffle 103 and the connecting slide rod 302 cooperate with each other, and the elasticity of the compression spring 303 can be used to clamp and fix the fixed vertical plate 202 and the mounting horizontal plate 203, so that the bolt holes of the fixed vertical plate 202 and the connecting plate 102 can be positioned, making it easy for the bolts to be inserted smoothly; the positioning groove 502 of the positioning plate 5 positions the built-in screw 402, so that the precast column 4 can effectively avoid the position of the built-in screw 402 from shifting during the pouring process, and after the precast column 4 is connected to the steel structure connector 1, the built-in screw 402 can be evenly stressed in the precast column 4.
[0039] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A new type of fabricated building connection joint structure, characterized in that, include: A steel structure connector (1) is provided with prefabricated crossbeams (2) on both the left and right sides, and the prefabricated crossbeams (2) on both the left and right sides are distributed symmetrically; two control plates (3) are provided at the connection points between the two prefabricated crossbeams (2) and the steel structure connector (1), and the two control plates (3) are distributed in a parallel manner; a prefabricated column (4) is provided at the bottom of the steel structure connector (1); a positioning plate (5) is provided inside the prefabricated column (4) near the top; The steel structure connector (1) has connecting plates (101) at both ends, and the two connecting plates (101) are distributed symmetrically, and the connecting plates (101) have a rectangular frame structure.
2. The novel fabricated building connection joint structure according to claim 1, characterized in that, The steel structure connector (1) has a docking plate (102) at the middle position of both the left and right ends. The docking plate (102) has a fixed baffle (103) at both the upper and lower ends, and the two fixed baffles (103) are distributed symmetrically.
3. The novel fabricated building connection joint structure according to claim 2, characterized in that, The precast beam (2) has a first built-in steel bar (201) inside. The precast beam (2) has two fixed vertical plates (202) at its ends, and the two fixed vertical plates (202) are distributed symmetrically. The upper and lower ends of the two fixed vertical plates (202) are provided with mounting horizontal plates (203).
4. The novel fabricated building connection joint structure according to claim 3, characterized in that, The control clamp (3) is provided with a limiting groove (301) in the middle position. The control clamp (3) is provided with two connecting slide rods (302), and the two connecting slide rods (302) are distributed in a vertical parallel manner. A compression spring (303) is fitted on the connecting slide rod (302).
5. The novel fabricated building connection joint structure according to claim 4, characterized in that, The control clamp (3) is slidably connected to the fixed vertical plate (202) through the limiting groove (301), and the connecting slide rod (302) slides through the fixed baffle (103), and the compression spring (303) is supported between the fixed baffle (103) and the control clamp (3).
6. The novel fabricated building connection joint structure according to claim 5, characterized in that, When the precast crossbeam (2) is connected to the steel structure connector (1), the mating plate (102) is set between the two fixed vertical plates (202) and controlled by bolt locking. The control plate (3) is in contact with the installation cross plate (203) and controlled by bolt locking.
7. The novel fabricated building connection joint structure according to claim 1, characterized in that, The precast column (4) is provided with a second built-in steel bar (401) inside. The precast column (4) is provided with a built-in screw (402) near the top position inside. The built-in screws (402) are distributed in a rectangular array. The bottom end of the built-in screw (402) is provided with a base plate (403). The top end of the built-in screw (402) is fixedly connected to the connecting plate (101) by a nut.
8. The novel fabricated building connection joint structure according to claim 1, characterized in that, The positioning plates (5) are distributed in two parallel positions, and the positioning plates (5) are rectangular frame structures. Connecting rods (501) are provided between the four diagonal corners of the two positioning plates (5). Positioning grooves (502) are provided on the inner side of the positioning plates (5), and the internal screws (402) correspond to the positions of the positioning grooves (502).