A connection piece for a mortise and tenon structure of a fabricated building

Abstract

This utility model discloses a mortise and tenon structure connector for prefabricated buildings, relating to the field of prefabricated building technology. The utility model includes a crossbeam, a column at the bottom of the crossbeam, a longitudinal beam at the rear of the crossbeam, a tenon fixedly connected to the front of the longitudinal beam, a mortise on the rear of the crossbeam, and a plug fixedly connected to the top of the column. This utility model achieves a weld-free connection through the tight fit of the tenon and mortise, avoiding welding through the light steel keel. Simultaneously, the plug automatically engages with the groove under the elastic force of the elastic plate, forming a self-locking structure to prevent loosening under vibration, ensuring stable and reliable node connections. The simple insertion of the plug into the positioning port, combined with the auxiliary fixing of bolts, further enhances the overall structural strength. The rapid assembly of the longitudinal and crossbeams reduces construction complexity, simplifies sealing and installation steps, improves construction efficiency, and meets the frequent movement needs of mobile homestays and space capsules.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated building technology, and in particular relates to a mortise and tenon structure connector for prefabricated buildings. Background Technology

[0002] Prefabricated buildings refer to buildings in which the main components, such as floor slabs, wall panels, stairs, and balconies, are prefabricated in a factory and then transported to the construction site for assembly using reliable methods such as bolting, welding, or adhesives. Currently, in the installation process of mobile homestay space capsules, it is necessary to use welding or bolts and other installation components to install and fix the light steel keel.

[0003] Traditional assembly and welding methods for mobile homestay capsules rely on specialized equipment and limited operating space. These methods are impractical in remote or confined spaces, severely restricting project progress. Furthermore, when handling thin steel materials, even slight deviations in welding current and timing can easily lead to burn-through, compromising the steel structure's strength and potentially reducing overall structural stability. While bolted connections solve on-site welding challenges, the frequent movement and prolonged vibrations of the mobile homestay capsules cause bolts to loosen, leading to joint failures and compromising overall structural safety. The complex connection processes and steps result in lengthy steel frame installation, increasing construction time and costs. This fails to meet the market demand for rapid assembly and flexible deployment of mobile homestay capsules, limiting industry development and hindering practical application.

[0004] To address these issues, we provide a prefabricated building mortise and tenon joint connector. Utility Model Content

[0005] The purpose of this utility model is to provide a mortise and tenon structure connector for prefabricated buildings. By having the tenon and mortise cooperate with multiple snap-fit ​​positioning structures, it solves the problem that in the prior art, prefabricated buildings rely on welding and bolt fixing during installation. Direct welding can easily lead to the light steel keel being welded through, while bolt fixing is prone to loosening, resulting in the failure of the node connection.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a mortise and tenon structure connector for prefabricated buildings, comprising a crossbeam, a column at the bottom of the crossbeam, a longitudinal beam at the rear of the crossbeam, a tenon fixedly connected to the front of the longitudinal beam, a mortise on the rear of the crossbeam, an insert fixedly connected to the top of the column, the top of the insert penetrating into the inner cavity of the crossbeam, slots on both sides of the tenon, positioning grooves on both sides of the inner cavity of the mortise, elastic plates fixedly connected to the inner walls of the positioning grooves, and locking blocks fixedly connected to the opposite sides of the two elastic plates.

[0008] The present invention is further configured such that rubber pads are fixedly connected to both sides of the inner cavity of the mortise, and a positioning port for use with the insert block is opened at the bottom of the crossbeam. The rubber pads enable the tenon and the mortise to be tightly connected, improving the sealing of the connection, and the positioning port facilitates the installation and fixing of the insert block.

[0009] The present invention is further configured such that a sealing plate is provided on the top of the crossbeam, and positioning pins are fixedly connected to both sides of the front side of the sealing plate, and buckles are fixedly connected to both sides of the bottom rear side of the sealing plate. The sealing plate can cover and seal the joint between the tenon and the mortise, the positioning pins can limit the sealing plate, and the buckles can fix the sealing plate to the longitudinal beam.

[0010] The present invention is further configured such that a sealing ring is fixedly connected to the bottom of the sealing plate, and a fixing groove is provided on the top of the crossbeam for use with the sealing plate. The sealing ring is used to improve the sealing effect of the sealing plate, and the fixing groove facilitates the installation and fixing of the sealing plate.

[0011] The present invention is further configured such that positioning slots are provided on both sides of the front side of the crossbeam for use with positioning pins, the top of the buckle is engaged with the bottom of the longitudinal beam, the positioning slots facilitate the use of positioning pins, and the buckles can cooperate with the longitudinal beam to complete the installation and fixing of the sealing plate.

[0012] The present invention is further configured such that a bolt is provided on the front side of the crossbeam, and the rear side of the bolt passes through the crossbeam, the insert block and the tenon in sequence. The front side of the bolt is provided with an internal hexagonal socket, which allows the bolt to install and fix the insert block and the tenon. The internal hexagonal socket allows workers to easily install and fix the bolt using a hex wrench.

[0013] The present invention is further configured such that the side of the card block away from the elastic sheet is provided with an inclined slope, and the front side of the top of the longitudinal beam is provided with a fixing groove. The inclined slope facilitates the tenon to press the card block and make it retract into the positioning groove. When the card groove and the positioning groove are in a horizontal state, the elastic sheet can send the card block into the card groove.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model achieves a weld-free connection through the tight fit of tenons and mortises, avoiding welding through the light steel keel. At the same time, the locking block automatically engages with the slot under the elastic force of the elastic sheet, forming a self-locking structure to prevent loosening under vibration and ensure stable and reliable node connection. The simple insertion of the plug and the positioning port, combined with the auxiliary fixing of bolts, further enhances the overall structural strength. The rapid assembly of the longitudinal and transverse beams reduces construction complexity, simplifies the sealing installation steps, improves construction efficiency, and meets the frequent movement needs of mobile homestay space capsules.

[0016] 2. This utility model achieves rapid locking when the tenon is inserted into the mortise through an automatic locking mechanism of elastic sheet and locking block. No professional equipment or power support is required, making it suitable for restricted environments such as the field. The column and beam are directly inserted and positioned by the insertion block, reducing manual operation time. The installation of the sealing plate is easily completed using the fixing groove and positioning bayonet, ensuring the sealing of the joint. The overall structure is lightweight and easy to transport, significantly shortening the construction cycle and reducing project costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 A three-dimensional view of a mortise and tenon joint connector for prefabricated buildings;

[0019] Figure 2 This is a schematic diagram of the connection between a sealing plate, bolts, and sealing ring in a mortise and tenon structure connector for prefabricated buildings.

[0020] Figure 3 This is a schematic diagram of a horizontal beam, column, and longitudinal beam in a mortise and tenon structure connector for prefabricated buildings.

[0021] Figure 4 This is a side view of a crossbeam in a mortise and tenon joint connector for prefabricated buildings.

[0022] Figure 5 This is a schematic diagram of an elastic plate, a locking block, and a crossbeam in a mortise and tenon structure connector for prefabricated buildings.

[0023] In the attached diagram: 1. Crossbeam; 2. Column; 3. Longitudinal beam; 4. Tenon; 5. Mortise; 6. Insert block; 7. Slot; 8. Positioning slot; 9. Elastic sheet; 10. Locking block; 11. Rubber pad; 12. Sealing plate; 13. Buckle; 14. Sealing ring; 15. Bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model is a mortise and tenon structure connector for prefabricated buildings, including a crossbeam 1, a column 2 at the bottom of the crossbeam 1, a longitudinal beam 3 at the rear of the crossbeam 1, a tenon 4 fixedly connected to the front of the longitudinal beam 3, a mortise 5 at the rear of the crossbeam 1, an insert 6 fixedly connected to the top of the column 2, the top of the insert 6 penetrating into the inner cavity of the crossbeam 1, slots 7 on both sides of the tenon 4, positioning grooves 8 on both sides of the inner cavity of the mortise 5, elastic plates 9 fixedly connected to the inner wall of the positioning grooves 8, and locking blocks 10 fixedly connected to the opposite side of the two elastic plates 9.

[0027] Specifically: the upright 2 is used to support the horizontal beam 1, the horizontal beam 1 and the longitudinal beam 3 can support the roof, the tenon 4 can cooperate with the mortise 5 to connect the horizontal beam 1 and the longitudinal beam 3, the insert block 6 can fix the upright 2 to the bottom of the horizontal beam 1, the slot 7 can cooperate with the slot block 10 to position and fix the tenon 4, and the elastic plate 9 can squeeze the slot block 10 so that it can enter the interior of the slot 7 to prevent the tenon 4 from loosening.

[0028] Example 2

[0029] Please see Figure 1-5 Based on Embodiment 1, rubber pads 11 are fixedly connected to both sides of the inner cavity of the mortise 5. The bottom of the crossbeam 1 is provided with a positioning port for use with the insert block 6. A sealing plate 12 is provided on the top of the crossbeam 1. Positioning pins are fixedly connected to both sides of the front side of the sealing plate 12. Buckles 13 are fixedly connected to both sides of the bottom rear side of the sealing plate 12. A sealing ring 14 is fixedly connected to the bottom of the sealing plate 12. A fixing groove for use with the sealing plate 12 is provided on the top of the crossbeam 1. Positioning slots for use with the positioning pins are provided on both sides of the front side of the crossbeam 1. The top of the buckle 13 is engaged with the bottom of the longitudinal beam 3. A bolt 15 is provided on the front side of the crossbeam 1. The rear side of the bolt 15 passes through the crossbeam 1, the insert block 6 and the tenon 4 in sequence. An internal hexagonal socket is provided on the front side of the bolt 15. An inclined slope is provided on the side of the buckle 10 away from the elastic sheet 9. A fixing groove is provided on the front side of the top of the longitudinal beam 3.

[0030] Specifically: the rubber pad 11 enables a tight connection between the tenon 4 and the mortise 5, improving the sealing performance of the connection; the positioning port facilitates the installation and fixing of the insert 6; the sealing plate 12 can cover and seal the joint between the tenon 4 and the mortise 5; the positioning pin can limit the sealing plate 12; the buckle 13 can fix the sealing plate 12 to the longitudinal beam 3; the sealing ring 14 is used to improve the sealing effect of the sealing plate 12; the fixing groove facilitates the installation and fixing of the sealing plate 12; the positioning port facilitates the use of the positioning pin; the buckle 13 can cooperate with the longitudinal beam 3 to complete the installation and fixing of the sealing plate 12; the bolt 15 can install and fix the insert 6 and the tenon 4; the internal hexagonal socket allows workers to use a hex wrench to install and fix the bolt 15; the inclined slope facilitates the tenon 4 to squeeze the buckle 10, causing it to retract into the positioning groove 8; when the groove 7 and the positioning groove 8 are in a horizontal state, the elastic plate 9 can send the buckle 10 into the groove 7.

[0031] The working principle of this utility model is as follows: First, insert the top insert 6 of the column 2 into the positioning hole at the bottom of the crossbeam 1 to initially fix the column 2 to the bottom of the crossbeam 1. Then, push the tenon 4 on the front side of the longitudinal beam 3 into the mortise 5 on the rear side of the crossbeam 1. When the tenon 4 contacts the inclined slope of the locking block 10, it compresses the locking block 10 into the positioning groove 8, and the elastic sheet 9 deforms under pressure. When the tenon 4 is fully inserted into the mortise 5 and the groove 7 is aligned with the positioning groove 8, the elastic sheet 9 rebounds and pushes the locking block 10 into the groove 7, automatically locking the position of the tenon 4. The pad 11 fills the gap inside the mortise 5 to enhance the tightness of the connection. Then, the bolt 15 is passed through the crossbeam 1, the insert 6 and the tenon 4. The bolt 15 is tightened with an Allen wrench to reinforce the connection between the insert 6 and the tenon 4. Finally, the sealing plate 12 is placed in the fixing groove at the top of the crossbeam 1. The positioning pin is inserted into the positioning slot for limitation. The buckle 13 is used to fix the sealing plate 12 at the bottom of the longitudinal beam 3. The sealing ring 14 fits against the surface of the crossbeam 1 to improve the overall sealing effect. After all the connections are completed, the overall structure is stable and vibration-resistant, and can adapt to frequent moving environments.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A prefabricated building tenon and mortise structure connector, comprising a crossbeam (1), characterized in that: A column (2) is provided at the bottom of the crossbeam (1), and a longitudinal beam (3) is provided at the rear side of the crossbeam (1). The front side of the longitudinal beam (3) is fixedly connected with a tenon (4), the rear side of the crossbeam (1) is provided with a mortise (5), the top of the column (2) is fixedly connected with a plug (6), the top of the plug (6) extends through the inner cavity of the crossbeam (1), both sides of the tenon (4) are provided with slots (7), both sides of the inner cavity of the mortise (5) are provided with positioning grooves (8), the inner wall of the positioning groove (8) is fixedly connected with an elastic piece (9), and the opposite side of the two elastic pieces (9) is fixedly connected with a block (10).

2. The mortise and tenon structure connector for prefabricated buildings according to claim 1, characterized in that: Rubber pads (11) are fixedly connected to both sides of the inner cavity of the mortise (5), and a positioning port for use with the insert (6) is opened at the bottom of the crossbeam (1).

3. The mortise and tenon structure connector for prefabricated buildings according to claim 1, characterized in that: A sealing plate (12) is provided on the top of the crossbeam (1). Positioning pins are fixedly connected to both sides of the front side of the sealing plate (12), and buckles (13) are fixedly connected to both sides of the bottom rear side of the sealing plate (12).

4. A prefabricated building mortise and tenon structure connector according to claim 3, characterized in that: The bottom of the sealing plate (12) is fixedly connected to a sealing ring (14), and the top of the crossbeam (1) is provided with a fixing groove that cooperates with the sealing plate (12).

5. A prefabricated building mortise and tenon structure connector according to claim 3, characterized in that: The front sides of the crossbeam (1) are provided with positioning slots that cooperate with positioning pins, and the top of the buckle (13) is engaged with the bottom of the longitudinal beam (3).

6. A prefabricated building mortise and tenon structure connector according to claim 1, characterized in that: A bolt (15) is provided on the front side of the crossbeam (1), and the bolt (15) passes through the crossbeam (1), the insert (6) and the tenon (4) in sequence on the rear side. The bolt (15) has an internal hexagonal opening on the front side.

7. A prefabricated building mortise and tenon structure connector according to claim 1, characterized in that: The side of the card block (10) away from the elastic sheet (9) is provided with an inclined slope, and the front side of the top of the longitudinal beam (3) is provided with a fixing groove.

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