Fabricated building component connecting structure

Abstract

The utility model relates to a fabricated building component connecting structure, and relates to the field of building industrialization. The device comprises a building component and a connecting piece, the connecting piece comprises a connecting disc, a connecting column, a supporting column, a connecting screw rod, an elastic lining, an expansion sliding sleeve, a fixing nut and a tension spring, the periphery of the expansion sliding sleeve is arranged to be in a wedge shape, and the elastic lining is used for fixing the other building component. According to the fabricated building component connecting structure, firstly, one building component is fixed to the connecting disc through the embedded steel bars, then the connecting column is sleeved with the elastic lining, the state of the elastic lining is adjusted and controlled through the expansion sliding sleeve and the fixing nut, and it is ensured that the elastic lining can be tightly attached to the inner wall of the other building component; meanwhile, the tension spring provides auxiliary support when the elastic lining deforms, the stability and adaptability of the whole structure are ensured, and therefore reliable connection of the two building components is achieved.

Description

Technical Field

[0001] This application relates to the field of industrialized building technology, and in particular to a connection structure for prefabricated building components. Background Technology

[0002] Prefabricated construction, as an effective model of industrialized construction, has been widely used in the construction industry due to its advantages such as high construction efficiency and low environmental pollution. The core of this model lies in the reliability of component connection technology to ensure the integrity and durability of the structure. Currently, the market mainly uses traditional methods such as grouting sleeve connections, bolt connections, and welding; however, these methods still have some obvious drawbacks, affecting the widespread application of prefabricated construction.

[0003] Firstly, grouting sleeve connections transmit force through grouting into the steel sleeve. While this connection method does provide significant rigidity, it also necessitates on-site curing, placing high demands on construction precision. Furthermore, ensuring precise sleeve positioning is crucial when using grouting sleeve connections, which can be challenging in actual construction, increasing both the difficulty and cost.

[0004] Secondly, bolted connections are a rapid connection method, using high-strength bolts for mechanical fastening, which greatly saves construction time. However, this connection method has poor node ductility, and especially in natural disasters such as earthquakes, bolted structures may not provide sufficient protection, thus affecting the overall safety of the building.

[0005] Finally, welded connections offer high strength due to the on-site welding of embedded steel plates. However, residual stress generated during welding can adversely affect the durability and safety of the structure, especially during use, where this stress may damage the welded areas and reduce the overall performance of the structure. Utility Model Content

[0006] In order to address the limitations of current prefabricated building component connection structures due to their inherent design characteristics, the present invention employs traditional methods such as grouting sleeve connections, bolt connections, and welding. However, these methods still have some obvious drawbacks, which affect the widespread application of prefabricated buildings. Therefore, this application provides a prefabricated building component connection structure.

[0007] This application provides a prefabricated building component connection structure with the following technical solution: it includes building components and connectors disposed between adjacent building components. The connectors include a connecting plate anchored to one of the building components by pre-embedded steel bars, a connecting column disposed at the middle of the upper surface of the connecting plate, a support column disposed at one end of the connecting column relative to the connecting plate, a connecting screw fixedly disposed at the other end of the connecting column, an elastic bushing disposed on the outer periphery of the connecting column, an expansion sleeve connected to the connecting column and used to tighten the elastic bushing, a fixing nut connected to the connecting screw and used to adjust the sliding of the expansion sleeve on the connecting column, and a tension spring disposed between the expansion sleeve and the support column. The outer periphery of the expansion sleeve is wedge-shaped, and the elastic bushing is used to fix another building component.

[0008] By adopting the above technical solution, a building component is first fixed to the connecting plate by pre-embedded steel bars. Then, an elastic bushing is fitted over the connecting column, and the state of the elastic bushing is adjusted by expanding the sliding sleeve and fixing the nut to ensure that it can fit tightly against the inner wall of the other building component. At the same time, the tension spring provides auxiliary support when the elastic bushing deforms, ensuring the stability and adaptability of the overall structure, thereby achieving a reliable connection between the two building components.

[0009] As a preferred embodiment, one end of the support column is fixedly connected to the connecting plate, and the other end of the support column is fixedly connected to the connecting column. The outer periphery of the support column is also wedge-shaped and mirror-image of the expansion sleeve.

[0010] By adopting the above technical solution, one end of the support column is fixedly connected to the connecting plate, and the other end is fixedly connected to the connecting column, ensuring the overall structural stability of the device. The outer circumference of the support column is designed in a wedge shape and is mirror-image of the expansion sleeve. This design not only increases structural strength but also effectively supports the lower end face of the elastic bushing during the tightening process, ensuring that the elastic bushing can firmly adhere to the building component. In this way, the elastic bushing can not only apply the tightening force more evenly during tightening but also provide sufficient support, thereby improving the fixing stability of the building component.

[0011] As a preferred embodiment, the outer periphery of the connecting post is set as a smooth arc surface, and the expansion sleeve is provided with a through hole adapted to the connecting post.

[0012] By adopting the above technical solution, the outer periphery is designed as a smooth arc surface to facilitate the smooth sliding of the expansion sleeve. The expansion sleeve has a through hole that matches the connecting post, allowing it to slide along the connecting post under the action of the fixing nut and tension spring. The fixing nut is used to fasten the expansion sleeve and the connecting post, while the tension spring provides the necessary tension for the expansion sleeve. When the expansion sleeve slides along the connecting post and contacts the elastic bushing, the difference in contact surfaces effectively tightens the elastic bushing. This process allows the elastic bushing to fit tightly against the surface of the building component, thereby achieving reliable fixation of the building component.

[0013] As a preferred embodiment, the elastic bushing is uniformly provided with a first opening groove and a second opening groove on its outer periphery. The first opening groove and the second opening groove are respectively arranged in the height direction of the elastic bushing. The first opening groove and the second opening groove are respectively staggered and the opening ends of the first opening groove and the second opening groove are arranged vertically in sequence.

[0014] By adopting the above technical solution, the first and second opening grooves on the outer periphery of the elastic bushing are evenly distributed along their height direction, ensuring uniform force distribution on the bushing during tensioning. The first and second opening grooves are arranged alternately, allowing the elastic bushing to expand uniformly under the action of the expanding sliding sleeve, thereby enhancing the contact stability between it and the connecting components. The opening ends of the first and second opening grooves are alternately arranged vertically, which facilitates effective tensioning of the elastic bushing and ensures stability after tensioning, preventing the elastic bushing from breaking due to stress concentration.

[0015] As a preferred embodiment, one end of the tension spring is fixedly connected to the support column, and the other end of the tension spring abuts against the expansion sleeve.

[0016] By adopting the above technical solution, one end of the tension spring is fixedly connected to the support column, providing a stable bottom support point for the expansion sleeve. The other end of the tension spring abuts against the expansion sleeve, generating an upward elastic force to ensure that the expansion sleeve can apply sufficient tension to the elastic bushing, thereby achieving effective expansion of the elastic bushing.

[0017] As a preferred embodiment, the device further includes a retaining ring fixedly disposed on the lower end face of the fixed nut, wherein the outer diameter of the retaining ring is equal to the maximum outer diameter of the expansion sleeve.

[0018] By adopting the above technical solution, the limiting retaining ring is fixedly installed on the lower end face of the fixed nut, and its outer diameter is equal to the maximum outer diameter of the expansion sleeve. This effectively limits the downward movement distance of the fixed nut when the operator adjusts it, preventing the fixed nut from completely sinking into the inner cavity of the expansion sleeve, thus ensuring the smooth operation of the adjustment and safe use.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] 1. Embedded steel bars fix a building component to the connecting plate, enhancing the stability of the overall structure; the connecting column is connected to the connecting plate and serves as the installation carrier for the elastic bushing and expansion sleeve, ensuring a tight connection between building components;

[0021] 2. The support column provides support for the connecting column, preventing it from deforming excessively; the connecting screw adjusts the tension of the elastic bushing through the fixing nut; the elastic bushing is used to fix another building component, ensuring good fit and connection stability, and the expansion sleeve works together with the fixing nut to control the state of the elastic bushing by adjusting the thread sliding, so that it can better adapt to the inner cavity of the other building component;

[0022] 3. Tension springs provide auxiliary support when the elastic bushing is deformed under stress, ensuring the stability and adaptability of the structure under different deformation conditions; Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of the overall structure of the prefabricated building component connection structure of this application;

[0024] Figure 2 This is a structural schematic diagram of a partial sectional view of the connection structure of prefabricated building components in this application;

[0025] Figure 3 It is the connection structure of prefabricated building components in this application. Figure 2 A structural schematic diagram of the front view;

[0026] Figure 4 This is an exploded view of the overall structure of the prefabricated building component connection structure of this application;

[0027] Figure 5 This is a schematic diagram of the elastic bushing in the prefabricated building component connection structure of this application.

[0028] Explanation of reference numerals in the attached drawings: 100, building component; 1, connecting plate; 2, connecting column; 21, supporting column; 22, connecting screw; 3, elastic bushing; 31, first opening groove; 32, second opening groove; 4, expansion sleeve; 5, fixing nut; 51, limiting retaining ring; 6, tension spring. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] Please see Figures 1 to 5This application discloses a prefabricated building component connection structure. It includes building components 100 and connectors disposed between adjacent building components 100. Each connector includes a connecting plate 1 anchored to one of the building components 100 by pre-embedded reinforcing bars; a connecting column 2 positioned at the center of the upper surface of the connecting plate 1; a support column 21 positioned at one end of the connecting column 2 opposite to the connecting plate 1; a connecting screw 22 fixedly disposed at the other end of the connecting column 2; an elastic bushing 3 disposed on the outer periphery of the connecting column 2; an expansion sleeve 4 connected to the connecting column 2 and used to tighten the elastic bushing 3; a fixing nut 5 connected to the connecting screw 22 and used to adjust the sliding of the expansion sleeve 4 on the connecting column 2; and a fixing nut 5 disposed on the expansion sleeve 3. The tension spring 6 between the sleeve 4 and the support column 21, the outer periphery of the expansion sleeve 4 is wedge-shaped, and the elastic bushing 3 is used to fix another building component 100. In this utility model, firstly, a building component 100 is fixed to the connecting plate 1 by pre-embedded steel bars, and then the elastic bushing 3 is sleeved on the outside of the connecting column 2. The state of the elastic bushing 3 is adjusted by the expansion sleeve 4 and the fixing nut 5 to ensure that it can fit tightly against the inner wall of the other building component 100. At the same time, the tension spring 6 provides auxiliary support when the elastic bushing 3 deforms, ensuring the stability and adaptability of the overall structure, thereby realizing a reliable connection between the two building components 100.

[0031] Please refer to details. Figure 2 and Figure 3 In this design, one end of the support column 21 is fixedly connected to the connecting plate 1, and the other end is fixedly connected to the connecting column 2. The outer periphery of the support column 21 is also wedge-shaped and mirror-image of the expansion sleeve 4. The wedge shape of the outer periphery of the support column 21, mirror-image of the expansion sleeve 4, not only increases structural strength but also effectively supports the lower end face of the elastic bushing 3 during tensioning, ensuring that the elastic bushing 3 is firmly attached to the building component 100. Thus, the elastic bushing 3 can apply tension force more evenly during tensioning and provide sufficient support, thereby improving the stability of the building component 100. Its working principle is as follows: when the elastic bushing 3 is tightened by external force, the support column 21 can stably support the lower end face of the elastic bushing 3 through its wedge design and symmetrical arrangement, preventing the elastic bushing 3 from affecting the fixing effect due to uneven force or displacement, and ultimately ensuring that the elastic bushing 3 can effectively fix and protect the building component 100.

[0032] Please refer to details. Figure 2 and Figure 3The outer periphery of the connecting column 2 is designed as a smooth arc surface, and the expansion sleeve 4 is provided with a through hole adapted to the connecting column 2. The smooth arc surface of the outer periphery allows the expansion sleeve 4 to slide smoothly on it. The expansion sleeve 4 has a through hole matching the connecting column 2 inside, allowing it to slide along the connecting column 2 under the action of the fixing nut 5 and the tension spring 6. The fixing nut 5 is used to fasten the expansion sleeve 4 and the connecting column 2, while the tension spring 6 provides the necessary tension for the expansion sleeve 4. When the expansion sleeve 4 slides along the connecting column 2 and contacts the elastic bushing 3, the difference in contact surfaces allows for effective tensioning of the elastic bushing 3. This process enables the elastic bushing 3 to fit tightly against the surface of the building component 100, thereby achieving reliable fixation of the building component 100. The working principle is that the expansion sleeve 4 slides along the smooth arc surface of the connecting column 2 and contacts the elastic bushing 3 by the action of the fixed nut 5 and the tension spring 6. By adjusting the position of the expansion sleeve 4, the contact surface with the elastic bushing 3 is changed, thereby tightening the elastic bushing 3 and effectively fixing the building component 100.

[0033] Please refer to details. Figure 5 To facilitate the tensioning of the elastic bushing 3, a first opening groove 31 and a second opening groove 32 are evenly arranged on the outer periphery of the elastic bushing 3. The first opening groove 31 and the second opening groove 32 are respectively arranged along the height direction of the elastic bushing 3, and are staggered with each other. The opening ends of the first opening groove 31 and the second opening groove 32 are arranged sequentially up and down. The first opening groove 31 and the second opening groove 32 on the outer periphery of the elastic bushing 3 are evenly distributed along their height direction, ensuring uniform force on the bushing during tensioning. The staggered arrangement of the first opening groove 31 and the second opening groove 32 allows the elastic bushing 3 to expand evenly under the action of the expanding sleeve 4, thereby enhancing the contact stability between it and the connecting parts. The sequential alternation of the opening ends of the first opening groove 31 and the second opening groove 32 facilitates effective tensioning of the elastic bushing 3 and ensures stability after tensioning, preventing the elastic bushing 3 from breaking due to stress concentration.

[0034] Please refer to details. Figure 3 and Figure 4One end of the tension spring 6 is fixedly connected to the support column 21, and the other end of the tension spring 6 abuts against the expansion sleeve 4. The support column 21, fixedly connected to one end of the tension spring 6, provides a stable bottom support point for the expansion sleeve 4. The other end of the tension spring 6 abuts against the expansion sleeve 4, generating an upward elastic force to ensure that the expansion sleeve 4 can apply sufficient tension to the elastic bushing 3, thereby achieving effective expansion of the elastic bushing 3. The working principle is: the support column 21 fixes the tension spring 6, and the tension spring 6 applies elastic force by abutting against the expansion sleeve 4, ensuring that the expansion sleeve 4 can stably expand the elastic bushing 3, thus guaranteeing the expansion effect and stability of the elastic bushing 3.

[0035] Please refer to details. Figure 3 To facilitate adjustment of the fixing nut 5 by the operator, a limiting retaining ring 51 is also included, which is fixedly installed on the lower end face of the fixing nut 5. The outer diameter of the limiting retaining ring 51 is equal to the maximum outer diameter of the expansion sleeve 4. The limiting retaining ring 51 is fixedly installed on the lower end face of the fixing nut 5, and its outer diameter is equal to the maximum outer diameter of the expansion sleeve 4. This effectively limits the downward movement distance of the fixing nut 5 when the operator adjusts it, and prevents the fixing nut 5 from completely falling into the inner cavity of the expansion sleeve 4, thus ensuring the smooth progress of the adjustment operation and safe use.

[0036] The implementation principle of the prefabricated building component connection structure in this application embodiment is as follows: In use, a building component 100 is first fixed to the connecting plate 1 by pre-embedded steel bars. Then, an elastic bushing 3 is placed on the outside of the connecting column 2, and the state of the elastic bushing 3 is adjusted by the expansion sleeve 4 and the fixing nut 5 to ensure that it can fit tightly against the inner wall of the other building component 100. At the same time, the tension spring 6 provides auxiliary support when the elastic bushing 3 deforms, ensuring the stability and adaptability of the overall structure, thereby realizing a reliable connection between the two building components 100.

[0037] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A connection structure for prefabricated building components, characterized in that: The system includes building components (100) and connectors disposed between adjacent building components (100). The connectors include a connecting plate (1) anchored to one of the building components (100) by pre-embedded steel bars, a connecting column (2) disposed at the middle of the upper end face of the connecting plate (1), a support column (21) disposed at one end of the connecting column (2) relative to the connecting plate (1), a connecting screw (22) fixedly disposed at the other end of the connecting column (2), an elastic bushing (3) disposed on the outer periphery of the connecting column (2), an expansion sleeve (4) connected to the connecting column (2) and used to tighten the elastic bushing (3), a fixing nut (5) connected to the connecting screw (22) and used to adjust the sliding of the expansion sleeve (4) on the connecting column (2), and a tension spring (6) disposed between the expansion sleeve (4) and the support column (21). The outer periphery of the expansion sleeve (4) is wedge-shaped, and the elastic bushing (3) is used to fix the other building component (100).

2. The prefabricated building component connection structure according to claim 1, characterized in that: One end of the support column (21) is fixedly connected to the connecting plate (1), and the other end of the support column (21) is fixedly connected to the connecting column (2).

3. The prefabricated building component connection structure according to claim 2, characterized in that: The outer periphery of the support column (21) is also wedge-shaped and mirror-image of the expansion sleeve (4).

4. The prefabricated building component connection structure according to claim 3, characterized in that: The outer periphery of the connecting post (2) is set as a smooth arc surface, and the expansion sleeve (4) is provided with a through hole that is adapted to the connecting post (2).

5. The prefabricated building component connection structure according to claim 4, characterized in that: The elastic bushing (3) is uniformly provided with a first opening groove (31) and a second opening groove (32) on its outer periphery. The first opening groove (31) and the second opening groove (32) are respectively arranged in the height direction of the elastic bushing (3).

6. The prefabricated building component connection structure according to claim 5, characterized in that: The first opening groove (31) and the second opening groove (32) are respectively staggered, and the opening ends of the first opening groove (31) and the second opening groove (32) are arranged vertically in sequence.

7. A prefabricated building component connection structure according to claim 6, characterized in that: One end of the tension spring (6) is fixedly connected to the support column (21), and the other end of the tension spring (6) abuts against the expansion sleeve (4).

8. The prefabricated building component connection structure according to claim 7, characterized in that: It also includes a limiting retaining ring (51) fixedly disposed on the lower end face of the fixing nut (5), the outer diameter of the limiting retaining ring (51) being equal to the maximum outer diameter of the expansion sleeve (4).

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