Prefabricated building connecting joint structure

Abstract

The application discloses an assembled building connecting joint structure, which comprises a stand column, a cross beam, a connecting joint for connecting the stand column and the cross beam, a through hole arranged on the side surface of the stand column, a tenon arranged on the top of the stand column, an adapter for connecting the tenon and provided with a mortise, a connecting sleeve matched with the adapter and the stand column, and a side support installed on the stand column; the bottom of the side support is provided with an inserting plate for being inserted into the through hole, and the top of the side support is provided with a groove; when the connecting sleeve is sleeved on the stand column, the bottom of the connecting sleeve is inserted into the groove; the bottom of the adapter is matched with the inner surface of the connecting sleeve, and the top of the stand column is matched with the adapter to form a mortise and tenon joint; the cross beam is installed on the side surface of the adapter, and the bottom surface of the cross beam is matched with the top of the side support. The application can adopt the mortise and tenon joint mode, the wooden material is more green and environment-friendly, fewer bolts are used, and the installation is more convenient.

Description

Technical Field

[0001] This invention relates to building construction, specifically to the connection node structure of prefabricated buildings. Background Technology

[0002] With the development of modern society, most traditional industries have undergone transformation. The drawbacks of cast-in-place reinforced concrete structure construction, such as energy consumption and environmental pollution, have gradually become apparent.

[0003] Prefabricated building connection nodes are generally assembled using steel plates to form a steel structure. The steel structure is used as a node to connect multiple beams and columns. However, the current connection method mainly involves assembling multiple connectors with bolts. This assembly is complex, and the stability of the structure mainly depends on the fit between the bolts and connectors.

[0004] The mortise and tenon structure can improve stability through the mutual cooperation of the structure itself, and can reduce the use of connecting parts. In particular, the mortise and tenon structure is easy to install and process, especially when assembling wooden beams and wooden columns.

[0005] In view of being green and environmentally friendly, and at the same time able to improve the installation efficiency of prefabricated buildings, this application is made to optimize the existing technology. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a prefabricated building connection node structure that can use mortise and tenon joints, the wood material is more environmentally friendly, and fewer bolts are used, making installation more convenient.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated building connection node structure, comprising a column, a beam, and a connection node for connecting the column and the beam. The connection node includes a through hole on the side of the column, a tenon on the top of the column, an adapter with a mortise for connecting with the tenon, a connecting sleeve for connecting the adapter to the column, and a side brace installed on the column. The bottom of the side brace is provided with an insert plate for inserting into the through hole, and the top of the side brace is provided with a groove. When the connecting sleeve is fitted onto the column, the bottom of the connecting sleeve is inserted into the groove. The bottom of the adapter is adapted to the inner surface of the connecting sleeve and forms a mortise and tenon joint with the top of the column. The beam is installed on the side of the adapter, and the bottom surface of the beam abuts against the top of the side brace.

[0008] As a further improvement of the present invention, the portion of the side support plate after being inserted into the through hole is bent and adhered to the inner wall of the column.

[0009] As a further improvement of the present invention, the side brace is provided with a tenon at the position where it abuts the crossbeam, and the crossbeam is provided with a mortise at the position corresponding to the tenon; the side brace and the crossbeam form a mortise and tenon connection.

[0010] As a further improvement of the present invention, the top of the connecting sleeve corresponds to the adapter and is pressed down by the adapter.

[0011] As a further improvement of the present invention, the adapter is provided with a dovetail tenon from top to bottom at the position corresponding to the crossbeam, and the end of the crossbeam is provided with a dovetail mortise. An interference sleeve is movably fitted on the crossbeam, and the edge of the interference sleeve is provided with a laterally protruding connecting part. The connecting part is connected to the adapter by bolts, and the interference sleeve moves toward the adapter during the bolt tightening process, clamping the dovetail mortise and the dovetail tenon.

[0012] As a further improvement of the present invention, the side of the connecting sleeve is provided with a through hole corresponding to the position of the tenon, and the connecting sleeve is installed on the column after the tie bolt passes through the through hole and the tenon of the adapter.

[0013] As a further improvement of the present invention, the crossbeam, column, and adapter are made of wood, while the connecting sleeve, interference sleeve, and side brace are made of metal.

[0014] As a further improvement of the present invention, the side of the connecting sleeve is provided with a plurality of connecting holes corresponding to the position of the adapter. When the connecting sleeve and the adapter are assembled in place, the connecting sleeve is installed on the adapter by means of self-tapping screws and connecting holes.

[0015] As a further improvement of the present invention, the number of tenons at the end of the column is several, and they correspond to the middle positions of the four sides of the end of the column respectively; the corner position of the end of the column is set as a notch, and the connecting sleeve is provided with a complementary tensioning block at the position corresponding to the notch. When the connecting sleeve and the adapter are installed in place, the tensioning block is located inside the notch, and the depth of the notch is greater than the length of the tensioning block.

[0016] The beneficial effects of this invention are that the overall frame is constructed using mortise and tenon joints, with localized reinforcement using connecting sleeves, which improves installation strength and facilitates processing and installation. The use of side braces alleviates the load on the mortise and tenon structure, further extending its service life. The installation of the side braces in conjunction with the connecting sleeves ensures a stable installation, preventing them from tipping over or falling off, and also maintains better support for the crossbeams. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembly state structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the assembly state of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of the present invention;

[0020] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0021] Reference numerals: 1. Column; 11. Notched corner; 2. Horizontal beam; 21. Dovetail tenon; 3. Connecting node; 31. Through hole; 32. Tenon; 33. Adapter; 331. Dovetail tenon; 34. Connecting sleeve; 341. Tensioning block; 35. Side brace; 351. Insert plate; 352. Groove; 4. Interference sleeve; 41. Connecting part. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0023] Reference Figure 1-4 As shown,

[0024] A prefabricated building connection node structure includes a column 1, a beam 2, and a connection node 3 for connecting the column 1 and the beam 2. The connection node 3 includes a through hole 31 on the side of the column 1, a tenon 32 on the top of the column 1, an adapter 33 with a mortise for connecting with the tenon 32, a connecting sleeve 34 that connects the adapter 33 to the column 1, and a side brace 35 installed on the column 1. The bottom of the side brace 35 is provided with an insert plate 351 for inserting into the through hole 31, and the top of the side brace 35 is provided with a groove 352. When the connecting sleeve 34 is fitted onto the column 1, the bottom of the connecting sleeve 34 is inserted into the groove 352. The bottom of the adapter 33 is adapted to the inner surface of the connecting sleeve 34 and forms a mortise and tenon joint with the top of the column 1. The beam 2 is installed on the side of the adapter 33, and the bottom surface of the beam 2 abuts against the top of the side brace 35.

[0025] The top of the connecting sleeve 34 corresponds to the adapter 33, and is pressed down by the adapter 33.

[0026] In this design, connection node 3 primarily uses a mortise and tenon structure for connection, while connection sleeve 34 serves as an auxiliary fixing component. The installation steps are as follows:

[0027] First, insert the bottom plate 351 of the side brace 35 into the through hole 31, using the hole wall of the through hole 31 as a support to support the side brace 35. Then, put the connecting sleeve 34 onto the adapter 33 and move it downwards together with the adapter 33. At this point, the tenon on the adapter 33 corresponds to the tenon 32 on the column 1, forming an insertion. The top of the connecting sleeve 34 abuts against the adapter 33. As the adapter 33 is pressed down, the connecting sleeve 34 also connects to the column 1, and is inserted into the groove 352 of the side brace 35. The top of the side brace 35 is then restricted, preventing it from flipping outwards, thus forming a stable assembly. The crossbeam 2 can also be connected to the side of the adapter 33 using the same connection method. Alternatively, it can be directly installed on the side of the adapter 33 using self-tapping screws, or the side of the adapter 33 can have a support plate for the crossbeam 2, which is then placed on the support plate for installation.

[0028] Since the connecting sleeve 34 needs to be inserted into the groove 352 of the side support 35, and the groove 352 is not necessarily located at the edge of the surface of the column 1 corresponding to the side support 35, the connecting sleeve 34 needs to have a larger inner diameter connection at the position of the groove 352 of the side support 35. This connection will not be directly attached to the column 1, and there is a certain gap between it and the column 1, so that the connection can be inserted into the groove 352, as shown in the figure.

[0029] Specifically, the connection can protrude from the outer surface of the connecting sleeve 34, and in order to facilitate the guiding effect, a bevel can be provided at the position corresponding to the inner surface of the connection. The bevel can guide the installation and alignment between the adapter 33 and the column 1, and can also be easily inserted into the groove 352 of the side support 35.

[0030] To ensure a more stable installation of the side brace 35, the portion of the insert plate 351 of the side brace 35 that is inserted into the through hole 31 is bent and fits against the inner wall of the column 1. The bent portion forms a hook-like structure, ensuring a more stable connection for the side brace 35 and preventing slippage at the bottom. This, combined with the installation of the upper groove 352 and the connecting sleeve 34, further enhances stability.

[0031] In a further configuration, the side brace 35 is provided with a tenon 32 at the position where it abuts against the crossbeam 2, and the crossbeam 2 is provided with a mortise at the position corresponding to the tenon 32; a mortise and tenon connection is formed between the side brace 35 and the crossbeam 2.

[0032] The tenon 32 on the side brace 35 can be inserted into the crossbeam 2 and connected with the mortise at the bottom of the crossbeam 2. After the crossbeam 2 is installed, it can increase the positioning and prevent displacement. Due to the existence of this mortise and tenon structure, the installation stability of the side brace 35 can also be further improved.

[0033] The adapter 33 has a dovetail tenon 331 from top to bottom corresponding to the position of the crossbeam 2. The end of the crossbeam 2 is provided with a dovetail mortise 21. An interference sleeve 4 is movably fitted on the crossbeam 2. The edge of the interference sleeve 4 is provided with a laterally protruding connecting part 41. The connecting part 41 is connected to the adapter 33 by bolts. The interference sleeve 4 moves toward the adapter 33 during the bolt tightening process and clamps the dovetail mortise 21 and the dovetail tenon 331.

[0034] The crossbeam 2 is installed from top to bottom. The dovetail tenon 21 can be inserted with the dovetail tenon 331. The dovetail structure can limit the length of the crossbeam 2 and make the installation more stable. At the same time, it is fastened with the interference sleeve 4. After the crossbeam 2 and the adapter 33 are inserted, the movement of the interference sleeve 4 makes the crossbeam 2 and the adapter 33 form a tighter fit. Since it is an interference fit, it is difficult to move the interference sleeve 4. The bolt is used to make the interference sleeve 4 move by tightening the bolt, making the interference sleeve 4 easier to move and achieving the interference fit at the connection between the crossbeam 2 and the adapter 33, making the installation more stable.

[0035] Preferably, the crossbeam 2, column 1, and adapter 33 are made of wood, while the connecting sleeve 34, interference sleeve 4, and side brace 35 are made of metal.

[0036] The metal interference fit 4 increases the strength of the connection between the crossbeam 2 and the adapter 33, and requires fewer bolts, making installation easier. The wood material is also easy to process, and the connecting sleeve 34 and side brace 35 are both made of metal, providing reinforcement.

[0037] Meanwhile, in order to make the position of the connecting sleeve 34 more stable, as an optional solution, the side of the connecting sleeve 34 is provided with a through hole 31 that passes through both sides of the connecting sleeve 34 at the position of the tenon 32. The connecting sleeve 34 is installed on the column 1 after the tie bolt passes through the through hole 31 and the tenon 32 of the adapter 33.

[0038] A through-type tie rod is used to fix the connecting sleeve 34 and the tenon 32. This allows for more stable assembly after alignment.

[0039] The side of the connecting sleeve 34 is provided with several connecting holes corresponding to the position of the adapter 33. When the connecting sleeve 34 and the adapter 33 are assembled in place, the connecting sleeve 34 is installed on the adapter 33 by means of self-tapping screws and connecting holes.

[0040] The adapter 33 is made of wood and can be easily installed with self-tapping screws.

[0041] In a further preferred embodiment, the number of tenons 32 at the end of the column 1 is several, and they correspond to the middle positions of the four sides of the end of the column 1 respectively; the corner position of the end of the column 1 is set as a notch 11, and the connecting sleeve 34 is provided with a complementary tensioning block 341 at the position corresponding to the notch 11. When the connecting sleeve 34 and the adapter 33 are installed in place, the tensioning block 341 is located inside the notch 11, and the depth of the notch 11 is greater than the length of the tensioning block 341.

[0042] During installation, the tenon 32 aligns with the mortise, while the tensioning block 341 is installed aligned with the notch 11. As the connecting sleeve 34 moves downward, the tensioning block 341 enters the position of the notch 11, simultaneously engaging with the tenon 32 and mortise to secure the joint and prevent a decrease in the strength of the mortise and tenon joint due to aging or deformation of the tenon 32 or mortise. The tensioning block 341 maintains sufficient strength, resulting in better installation stability and preventing loosening.

[0043] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A prefabricated building connection node structure, comprising columns, beams, and connection nodes for connecting the columns and beams, characterized in that, The connection node includes a through hole on the side of the column, a tenon on the top of the column, an adapter with a mortise for connecting with the tenon, a connecting sleeve for connecting the adapter to the column, and a side brace installed on the column. The bottom of the side brace has an insert plate for inserting into the through hole, and the top of the side brace has a groove. When the connecting sleeve is fitted onto the column, the bottom of the connecting sleeve is inserted into the groove. The bottom of the adapter is adapted to the inner surface of the connecting sleeve and forms a mortise and tenon joint with the top of the column. The crossbeam is installed on the side of the adapter, and the bottom surface of the crossbeam abuts against the top of the side brace. The portion of the side brace insert plate that is inserted into the through hole is bent and fits against the inner wall of the column. The side brace is provided with a tenon at the position where it abuts the crossbeam, and the crossbeam is provided with a mortise at the position where the tenon is located; the side brace and the crossbeam form a mortise and tenon connection; The top of the connecting sleeve corresponds to the adapter and is pressed down by the adapter; The adapter has dovetail tenons from top to bottom at the position corresponding to the crossbeam. The end of the crossbeam is provided with a dovetail mortise. An interference sleeve is movably fitted on the crossbeam. The edge of the interference sleeve is provided with a laterally protruding connecting part. The connecting part is connected to the adapter by bolts. The interference sleeve moves toward the adapter during the bolt tightening process and clamps the dovetail mortise and dovetail tenon.

2. The prefabricated building connection node structure according to claim 1, characterized in that, The side of the connecting sleeve is provided with a through hole corresponding to the position of the tenon, which passes through both sides of the connecting sleeve. The connecting sleeve is installed on the column after the tie bolt passes through the through hole and the tenon of the adapter.

3. The prefabricated building connection node structure according to claim 1, characterized in that, The beams, columns, and adapters are made of wood, while the connecting sleeves, interference sleeves, and side braces are made of metal.

4. The prefabricated building connection node structure according to claim 3, characterized in that, The side of the connecting sleeve is provided with several connecting holes corresponding to the position of the adapter. After the connecting sleeve and the adapter are assembled in place, the connecting sleeve is installed on the adapter by using self-tapping screws to connect the connecting holes.

5. The prefabricated building connection node structure according to claim 4, characterized in that, The column end has several tenons, each corresponding to the middle position of one of the four sides of the column end; the corner of the column end is set as a notch, and the connecting sleeve is provided with a complementary tensioning block at the position corresponding to the notch. When the connecting sleeve and the adapter are installed in place, the tensioning block is located inside the notch, and the depth of the notch is greater than the length of the tensioning block.

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