Fabricated building node connecting device

By designing the columns, connecting components, and supporting components in coordination, the problem of rapid positioning and flexible adjustment of the node connection device in prefabricated buildings is solved, which improves construction efficiency and connection stability, adapts to building deformation and displacement, and prevents damage.

CN224161215UActive Publication Date: 2026-04-24SHANDONG ZHONGXING INSTALLATION ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ZHONGXING INSTALLATION ENG CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing prefabricated building node connection devices are not convenient for quick positioning and installation, resulting in a cumbersome and time-consuming installation process. Furthermore, they lack flexible adjustment capabilities when dealing with building deformation and displacement, affecting the stability and reliability of the connection.

Method used

A node connection device including a column, a connecting component, and a support component was designed. Through the cooperation of a compression spring and a damping rod, it can achieve rapid positioning and flexible adjustment, thereby enhancing the stability and reliability of the connection.

Benefits of technology

It enables a quick and easy installation process, improves construction efficiency, and effectively adapts to deformation and displacement during building use, enhancing the stability and reliability of the connection and preventing damage to the connection parts.

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Abstract

The utility model discloses an assembly type building node connecting device, which belongs to the technical field of building engineering, and is characterized in that the assembly type building node connecting device comprises a stand column, a positioning groove is formed in the front side of the stand column, a connecting assembly is arranged on the outer side of the stand column, and a supporting assembly is arranged on the outer side of the connecting assembly; each connecting assembly comprises a fixed seat slidably connected to the outer side of the corresponding stand column, a compression spring is fixedly connected to the interior of each fixed seat, a movable plate is fixedly connected to the inner side of each compression spring, and a positioning rod is fixedly connected to the inner side of each movable plate; the problems that an existing assembly type building joint connecting device is inconvenient to position and install rapidly, the installation process is tedious, time consumption is long, construction efficiency is affected, when deformation and displacement in the building use process are dealt with, flexible adjusting capacity is lacked, and connecting parts are prone to damage when a building deforms due to external force, and the construction efficiency is affected can be solved. And the connection stability and reliability are influenced.
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Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a prefabricated building node connection device. Background Technology

[0002] With the rapid development of the construction industry and the emphasis on sustainable development, prefabricated buildings have been increasingly widely used in the modern construction field due to their many advantages such as fast construction speed, easy quality control, energy saving and environmental protection. In the prefabricated building system, node connection is the core link, which directly affects the stability, integrity and seismic performance of the entire building structure. Traditional building construction mostly adopts the method of on-site casting, while prefabricated buildings pre-produce building components in the factory and then transport them to the construction site for assembly.

[0003] In the existing technology, when connecting nodes in prefabricated building structures, only a single steel component can be assembled at a time, which results in a lot of time being spent on installation. This leads to a long overall assembly time, extended construction period, and low installation efficiency. Therefore, a node connection device for prefabricated building structures is proposed to solve the problems mentioned above.

[0004] The existing patent (publication number: CN221523833U) discloses a node connection device for prefabricated building structures. By using pads on both sides of the main rod and cooperating with the top plate, the connecting rods on both sides of the main rod can be assembled simultaneously. Two connecting rods can be assembled at once, which effectively reduces the overall installation time and greatly improves the installation efficiency. It has good practicality and solves the problem that in the prior art, when connecting nodes in prefabricated building structures, only a single steel component can be assembled at a time, which leads to a lot of time spent on installation, resulting in long overall assembly time, extended construction period, and low installation efficiency.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, existing prefabricated building node connection devices are not convenient for quick positioning and installation, resulting in a cumbersome and time-consuming installation process that affects construction efficiency. Furthermore, they lack flexible adjustment capabilities when dealing with deformation and displacement during building use, making the connection parts prone to damage when the building is subjected to external forces, thus affecting the stability and reliability of the connection.

[0006] To address this, a prefabricated building node connection device is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a prefabricated building node connection device, which can solve the problems of existing prefabricated building node connection devices being inconvenient to quickly position and install, resulting in a cumbersome and time-consuming installation process, affecting construction efficiency, and lacking flexible adjustment capabilities when dealing with deformation and displacement during building use, causing the connection parts to be easily damaged when the building is subjected to external forces, affecting the stability and reliability of the connection.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated building node connection device, including a column, a positioning groove is provided on the front side of the column, a connecting component is provided on the outer side of the column, and a supporting component is provided on the outer side of the connecting component;

[0009] The connecting assembly includes a fixed base slidably connected to the outside of the column. A compression spring is fixedly connected inside the fixed base. A movable plate is fixedly connected to the inside of the compression spring. A positioning rod is fixedly connected to the inside of the movable plate. The positioning rod engages with a positioning groove. A pull rod is fixedly connected to the outside of the positioning rod. A connecting rod is fixedly connected to the outside of the fixed base. A support rod is fixedly connected to the bottom of the fixed base. A connecting sleeve is engaged at the bottom of the support rod.

[0010] Preferably, the support assembly includes a support seat slidably connected inside the connecting sleeve, the support seat having a slot inside which it engages with a support rod, and a connecting seat fixedly connected to the outside of the support seat.

[0011] Preferably, a damping rod is rotatably connected to the inner side of the connecting seat, and a top seat is rotatably connected to the top of the damping rod.

[0012] Preferably, a limiting block is fixedly connected to the top of the support rod, the limiting block is slidably connected to the top seat, a limiting support rod is slidably connected to the outside of the limiting block, and the limiting support rod is engaged with the top seat.

[0013] Preferably, a base plate is fixedly connected to the bottom of the connecting sleeve, a fixed support rod is slidably connected to the outer side of the base plate, the fixed support rod is engaged with the support rod, and a fixed groove is provided on the inner side of the fixed support rod.

[0014] Preferably, an auxiliary support plate is fixedly connected to the inner side of the base plate, a connecting spring is fixedly connected to the top of the auxiliary support plate, and a locking block is fixedly connected to the top of the connecting spring, the locking block engaging with the fixing groove.

[0015] Preferably, a groove is provided on the rear side of the column, and a limiting slider is fixedly connected inside the groove. The limiting slider is fixedly connected to the connecting sleeve.

[0016] Preferably, a fixing member is bolted to the rear side of the fixing base.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application enables rapid initial positioning with the column by setting up a connecting component. The construction worker holds the pull rod and pulls it outward, which drives the positioning rod to move outward against the spring force of the compression spring. At this time, the fixing seat can be slid along the outside of the column to a suitable position. After releasing the pull rod, the compression spring pushes the positioning rod into the positioning groove of the column. This operation is simple and efficient, which greatly shortens the installation time of the connecting component and the column and improves the construction efficiency.

[0019] 2. This application can effectively transfer and distribute loads by setting up support components, which enhances the stability of the connection. The damping rod rotatably connected inside the connecting seat and the top seat rotatably connected to the top of the damping rod can flexibly adapt to the deformation and displacement of the building during use. When the building is subjected to external forces, the damping rod can adjust the position and angle of the top seat by rotation, avoiding damage to the connection due to excessive local deformation, and further improving the stability and reliability of the connection. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of a prefabricated building node connection device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the connecting component of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the support component of this utility model;

[0023] Figure 4 This is a schematic diagram of the connecting rod of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the column of this utility model.

[0025] In the diagram, 1. Column; 2. Positioning groove; 3. Base plate; 4. Connecting assembly; 401. Fixed seat; 402. Compression spring; 403. Moving plate; 404. Positioning rod; 405. Pull rod; 406. Connecting rod; 407. Support rod; 408. Connecting sleeve; 5. Support assembly; 501. Support seat; 502. Slot; 503. Connecting seat; 504. Damping rod; 505. Top seat; 506. Limiting block; 507. Limiting support rod; 6. Fixed support rod; 7. Fixed groove; 8. Auxiliary support plate; 9. Connecting spring; 10. Locking block; 11. Slide groove; 12. Limiting slider; 13. Fixing component. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A prefabricated building node connection device includes a column 1, a positioning groove 2 is provided on the front side of the column 1, a connecting component 4 is provided on the outer side of the column 1, and a supporting component 5 is provided on the outer side of the connecting component 4.

[0029] The connecting assembly 4 includes a fixed seat 401 slidably connected to the outside of the column 1. A compression spring 402 is fixedly connected inside the fixed seat 401. A movable plate 403 is fixedly connected to the inside of the compression spring 402. A positioning rod 404 is fixedly connected to the inside of the movable plate 403. The positioning rod 404 is engaged with the positioning groove 2. A pull rod 405 is fixedly connected to the outside of the positioning rod 404. A connecting rod 406 is fixedly connected to the outside of the fixed seat 401. A support rod 407 is fixedly connected to the bottom of the fixed seat 401. A connecting sleeve 408 is engaged at the bottom of the support rod 407.

[0030] In this embodiment: by holding the pull rod 405 and pulling it outward, the pull rod 405 drives the positioning rod 404 to move outward against the elastic force of the compression spring 402. At this time, the fixing seat 401 is aligned with the column 1, and the fixing seat 401 slides along the outside of the column 1 to a suitable position. The pull rod 405 is released, and under the elastic force of the compression spring 402, the moving plate 403 pushes the positioning rod 404 inward until the positioning rod 404 engages with the positioning groove 2 on the front side of the column 1, thereby completing the initial positioning of the connecting component 4 and the column 1. Afterward, the fixing member 13 bolted to the rear side of the fixing seat 401 further stabilizes the fixing seat 401 on the column 1, ensuring the reliability of the connection between the connecting component 4 and the column 1.

[0031] Specifically, such as Figure 3 As shown, the support assembly 5 includes a support seat 501 that is slidably connected inside the connecting sleeve 408. The support seat 501 has a slot 502 inside, which engages with the support rod 407. A connecting seat 503 is fixedly connected to the outside of the support seat 501.

[0032] Specifically, such as Figure 3 As shown, a damping rod 504 is rotatably connected to the inner side of the connecting seat 503, and a top seat 505 is rotatably connected to the top of the damping rod 504.

[0033] Specifically, such as Figure 3 As shown, a limiting block 506 is fixedly connected to the top of the support rod 407. The limiting block 506 is slidably connected to the top seat 505. A limiting support rod 507 is slidably connected to the outside of the limiting block 506. The limiting support rod 507 is engaged with the top seat 505.

[0034] In this embodiment: the support base 501 is inserted into the connecting sleeve 408, so that the slot 502 inside the support base 501 is engaged with the bottom of the support rod 407 in the connecting assembly 4, thus realizing the initial connection between the support base 501 and the connecting assembly 4. Since the top of the damping rod 504 is rotatably connected to the top seat 505, and the top seat 505 is slidably connected to the limiting block 506, the top seat 505 is then inserted into the inside of the limiting block 506. Then, the limiting support rod 507 on the outside of the limiting block 506 is inserted into the inside of the top seat 505, and then the limiting support rod 507 and the top seat 505 are engaged and fixed.

[0035] Specifically, such as Figure 4 As shown, a base plate 3 is fixedly connected to the bottom of the connecting sleeve 408, and a fixed support rod 6 is slidably connected to the outside of the base plate 3. The fixed support rod 6 is snapped into the support rod 407, and a fixed groove 7 is provided on the inner side of the fixed support rod 6.

[0036] Specifically, such as Figure 4 As shown, an auxiliary support plate 8 is fixedly connected to the inner side of the base plate 3, a connecting spring 9 is fixedly connected to the top of the auxiliary support plate 8, and a locking block 10 is fixedly connected to the top of the connecting spring 9. The locking block 10 is engaged with the fixing groove 7.

[0037] In this embodiment: by setting the base plate 3, the fixed support rod 6, and the fixing groove 7, after the initial positioning and fixing of the connecting assembly 4 and the column 1 are completed, the support base 501 is inserted into the connecting sleeve 408, so that the slot 502 of the support base 501 engages with the support rod 407. At this time, the base plate 3, which is fixedly connected to the bottom of the connecting sleeve 408, is also in place. Then, the fixed support rod 6 is slid along the outside of the base plate 3, so that it engages with the support rod 407. During the sliding process, the fixing groove 7 on the inside of the fixed support rod 6 gradually aligns with the locking block 10 on the top connecting spring 9 of the auxiliary support plate 8 on the inside of the base plate 3, which increases the overall stability of the connecting assembly 4, so that the support rod 407 is not easy to shake or shift when the entire node connection device is subjected to external force. By setting up an auxiliary support plate 8, a connecting spring 9, and a locking block 10, when the fixed support rod 6 is inserted into the base plate 3 and engages with the support rod 407, the fixed support rod 6 continues to slide, and the fixing groove 7 on its inner side moves to the position corresponding to the locking block 10 on the connecting spring 9 at the top of the auxiliary support plate 8. At this time, the upward elastic force of the connecting spring 9 pushes the locking block 10, causing the locking block 10 to engage in the fixing groove 7. The setting of the connecting spring 9 and the locking block 10 further strengthens the connection between the connecting component 4 and the support component 5, effectively prevents the relative sliding between the fixed support rod 6 and the base plate 3, enhances the stability and firmness of the entire connection device, can better resist external forces, ensure the reliability of the connection of prefabricated building nodes, and extend the service life of the building structure.

[0038] Specifically, such as Figure 5 As shown, a sliding groove 11 is provided on the rear side of the column 1, and a limiting slider 12 is fixedly connected inside the sliding groove 11. The limiting slider 12 is fixedly connected to the connecting sleeve 408.

[0039] Specifically, such as Figure 5 As shown, a fastener 13 is bolted to the rear side of the mounting base 401.

[0040] In this embodiment: by setting the sliding groove 11 and the limiting slider 12, when the connecting sleeve 408 is adjusted up and down or subjected to external force, the limiting slider 12 always slides within the sliding groove 11 to restrict the movement direction of the connecting sleeve 408, so that it can only slide up and down along the sliding groove 11. This not only facilitates the installation and positioning of the connecting sleeve 408, but also, during the building's use, when the connecting device is subjected to horizontal or other directional forces, it can constrain the displacement of the connecting sleeve 408, enhancing the overall structural stability and preventing the entire structure from being affected by the arbitrary movement of the connecting sleeve 408. The performance of the node connection device improves the safety of prefabricated buildings. By setting the fastener 13, after the initial positioning of the fixing seat 401 and the column 1 in the connection component 4 is completed, the fastener 13 is used to pass through the mounting hole on the rear side of the fixing seat 401 to tightly fasten the fixing seat 401 to the column 1. The fastening of the fastener 13 provides additional fastening force, so that the connection component 4 will not easily separate from the column 1 or undergo relative displacement when subjected to various external forces, effectively ensuring the stability of the node connection of the prefabricated building, thereby improving the safety and stability of the entire building structure.

[0041] Working principle: When using the prefabricated building node connection device, first, hold the pull rod 405 and pull it outward. The pull rod 405 drives the positioning rod 404 to move outward against the elastic force of the compression spring 402. At this time, align the fixing seat 401 with the column 1 and slide the fixing seat 401 along the outside of the column 1 to the appropriate position. Release the pull rod 405. Under the elastic force of the compression spring 402, the moving plate 403 pushes the positioning rod 404 inward until the positioning rod 404 engages with the positioning groove 2 on the front side of the column 1, thereby completing the connection. After the initial positioning of the connecting component 4 and the column 1, the fixing member 13 bolted to the rear of the fixing seat 401 further secures the fixing seat 401 to the column 1, ensuring the reliability of the connection between the connecting component 4 and the column 1. Then, the support seat 501 is inserted into the connecting sleeve 408, so that the slot 502 inside the support seat 501 engages with the bottom of the support rod 407 in the connecting component 4, realizing the initial connection between the support seat 501 and the connecting component 4. Since the top of the damping rod 504 is rotatably connected to the top seat 505, and the top seat 505 is also connected to the limit... The slidable connection of the positioning block 506 is followed by the insertion of the top seat 505 into the interior of the limiting block 506. Then, the limiting support rod 507 on the outer side of the limiting block 506 is inserted into the interior of the top seat 505, forming a snap-fit ​​fixation between the limiting support rod 507 and the top seat 505. Simultaneously, as the support seat 501 is inserted into the connecting sleeve 408, the fixing support rod 6 is inserted into the interior of the base plate 3. Through the coordinated action of the fixing support rod 6 and the base plate 3, the support rod 407 and the connecting sleeve are snap-fit ​​fixed. Because the fixing support rod 6 has a fixing groove 7 inside, the fixing... When the fixed support rod 6 slides inside the base plate 3, the connecting spring 9 at the top of its auxiliary support plate 8 will push the locking block 10 upward, so that the locking block 10 engages with the fixing groove 7, thereby strengthening and fixing the connecting component 4 and the support component 5 to prevent loosening during use. In addition, the sliding groove 11 opened on the rear side of the column and the limiting slider 12 fixedly connected inside are fixedly connected to the connecting sleeve 408, which can not only restrict the movement direction of the connecting sleeve 408, making it only slide up and down along the sliding groove 11, but also enhance the stability of the overall structure.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated building node connection device, comprising a column (1), characterized in that: The column (1) has a positioning groove (2) on its front side, a connecting component (4) is provided on the outside of the column (1), and a supporting component (5) is provided on the outside of the connecting component (4). The connecting assembly (4) includes a fixed seat (401) slidably connected to the outside of the column (1). A compression spring (402) is fixedly connected inside the fixed seat (401). A moving plate (403) is fixedly connected to the inside of the compression spring (402). A positioning rod (404) is fixedly connected to the inside of the moving plate (403). The positioning rod (404) is engaged with the positioning groove (2). A pull rod (405) is fixedly connected to the outside of the positioning rod (404). A connecting rod (406) is fixedly connected to the outside of the fixed seat (401). A support rod (407) is fixedly connected to the bottom of the fixed seat (401). A connecting sleeve (408) is engaged at the bottom of the support rod (407).

2. The prefabricated building node connection device according to claim 1, characterized in that: The support assembly (5) includes a support seat (501) that is slidably connected inside the connecting sleeve (408). The support seat (501) has a slot (502) inside, which engages with the support rod (407). A connecting seat (503) is fixedly connected to the outside of the support seat (501).

3. The prefabricated building node connection device according to claim 2, characterized in that: A damping rod (504) is rotatably connected to the inner side of the connecting seat (503), and a top seat (505) is rotatably connected to the top of the damping rod (504).

4. The prefabricated building node connection device according to claim 3, characterized in that: The top of the support rod (407) is fixedly connected to a limiting block (506), the limiting block (506) is slidably connected to the top seat (505), the outer side of the limiting block (506) is slidably connected to a limiting support rod (507), and the limiting support rod (507) is engaged with the top seat (505).

5. The prefabricated building node connection device according to claim 1, characterized in that: The bottom of the connecting sleeve (408) is fixedly connected to a base plate (3), and a fixed support rod (6) is slidably connected to the outside of the base plate (3). The fixed support rod (6) is engaged with the support rod (407), and a fixed groove (7) is provided on the inner side of the fixed support rod (6).

6. A prefabricated building node connection device according to claim 5, characterized in that: An auxiliary support plate (8) is fixedly connected to the inner side of the base plate (3). A connecting spring (9) is fixedly connected to the top of the auxiliary support plate (8). A locking block (10) is fixedly connected to the top of the connecting spring (9). The locking block (10) engages with the fixing groove (7).

7. A prefabricated building node connection device according to claim 1, characterized in that: The column (1) has a sliding groove (11) on its rear side. A limiting slider (12) is fixedly connected inside the sliding groove (11). The limiting slider (12) is fixedly connected to the connecting sleeve (408).

8. A prefabricated building node connection device according to claim 1, characterized in that: A fastener (13) is bolted to the rear side of the fixing base (401).

Citation Information

Patent Citations

  • Node connecting device of fabricated building structure

    CN221523833U