Glulam composite hollow beam

Abstract

The utility model relates to a kind of glued laminated timber combined hollow beams, belong to wood structure technical field, including two glued laminated timber boards corresponding from top to bottom, two web plates are fixedly connected between two glued laminated timber boards, two glued laminated timber boards and two web plates constitute combined hollow beam main body, connecting assembly is provided in the combined hollow beam main body;The connecting assembly includes first connecting plate and second connecting plate respectively arranged in the two sides of combined hollow beam main body, the end of first connecting plate and second connecting plate away from each other is all provided with inclined plane board, and the inside of first connecting plate and second connecting plate is inserted with two locating shafts.The glued laminated timber combined hollow beam, the quick fixing of adjacent combined hollow beam main body is realized, installation is convenient, provide convenience for construction, solve the problem that the two combined hollow beams of adjacent cannot be quickly connected and fixed in the process of using the existing glued laminated timber combined hollow beam, cause the problem of construction inconvenience.

Description

Technical Field

[0001] This utility model relates to the field of wood structure technology, specifically to a glued laminated timber composite hollow beam. Background Technology

[0002] Glulam, also known as engineered wood, is a high-strength, aesthetically pleasing, and biodegradable engineering composite material widely used in bridge and building construction. Compared to finished timber, glued laminated timber boasts greater strength, with allowable bending stress increased by 50%. It also exhibits a more uniform structure, lower internal stress, and is less prone to cracking and warping. Large-section glued laminated timber also possesses superior fire resistance. Furthermore, glued laminated timber does not suffer from the effects of veneer cracking, making it more suitable for building beams than laminated veneer lumber.

[0003] Glulam hollow beams are one application of glued laminated timber. Publication number CN216949088U discloses a composite hollow beam made of glued laminated timber, comprising two glued laminated timber veneers and two webs positioned between them, located at opposite ends of the area between the two veneers. The webs are glued to the veneers using adhesive. Embedded blocks are evenly distributed along the length of the upper and lower end faces of the webs. A groove corresponding to and matching the embedded block is formed on the end face of the veneer facing the web, and the embedded block is embedded in the groove. A mounting groove corresponding to the groove is formed on the end face of the veneer facing away from the web, and a bolt is provided at the bottom of each mounting groove. The bolt passes through the bottom of the mounting groove and connects to the embedded block at the same location. At least three support plates are evenly assembled in the area between the two webs, with their upper and lower end faces respectively abutting against the upper and lower glued laminated timber veneers.

[0004] However, during the use of this glued laminated timber composite hollow beam, two adjacent composite hollow beams cannot be quickly connected and fixed, causing inconvenience in construction. Therefore, a glued laminated timber composite hollow beam is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a glued laminated timber composite hollow beam, which has the advantages of easy and quick connection and fixing. It solves the problem that in the process of using existing glued laminated timber composite hollow beams, adjacent composite hollow beams cannot be quickly connected and fixed, causing inconvenience in construction.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a glued laminated timber composite hollow beam, comprising two glued laminated timber boards corresponding to each other, two web plates fixedly connected between the two glued laminated timber boards, the two glued laminated timber boards and the two web plates constituting the main body of the composite hollow beam, and a connecting component is provided in the main body of the composite hollow beam;

[0007] The connecting assembly includes a first connecting plate and a second connecting plate respectively disposed on both sides of the main body of the combined hollow beam. Each of the first and second connecting plates has an inclined plate at one end away from each other. Two positioning shafts are inserted into the inner side of each of the first and second connecting plates. A connecting block is fixedly connected between the two positioning shafts. The ends of the two positioning shafts are connected to a mounting plate. A spring is connected to the side of the connecting block near the mounting plate.

[0008] Furthermore, the first connecting plate is fixedly connected to one side of the upper plywood board, and the second connecting plate is fixedly connected to the side of the lower plywood board away from the first connecting plate.

[0009] Furthermore, a connecting frame is fixedly connected to the opposite ends of the first connecting plate and the second connecting plate, and a reinforcing plate is fixedly connected between the two connecting frames.

[0010] Furthermore, both the connecting frame and the reinforcing plate are located inside the main body of the composite hollow beam, and the reinforcing plate is fixedly connected to the web plate.

[0011] Furthermore, two positioning holes are provided on the inner side of both the first connecting plate and the second connecting plate, and the inner side of the positioning holes is adapted to the positioning shaft.

[0012] Furthermore, both the first connecting plate and the second connecting plate have mounting grooves on their inner sides, and both of the plywood boards have two through holes near the mounting grooves.

[0013] Furthermore, the positioning shaft passes through the inner side of the mounting groove and the through hole, the spring is located inside the mounting groove, and the end of the spring away from the mounting piece is connected to the plywood board.

[0014] Compared with the prior art, this utility model provides a glued laminated timber composite hollow beam, which has the following beneficial effects:

[0015] This glued laminated timber (GLLT) composite hollow beam, through its connecting components, allows two composite hollow beam bodies to align during installation. The side of one composite hollow beam body closest to the first connecting plate aligns with the side of the other composite hollow beam body closest to the second connecting plate. Springs and connecting blocks allow for elastic adjustment of the positioning shaft position. When the two composite hollow beam bodies are fully close together, the positioning holes on the first connecting plate align with the positioning shaft on the second connecting plate, and vice versa. The springs then reset the connecting blocks, aligning the positioning shaft with the positioning holes, enabling rapid fixing of adjacent composite hollow beam bodies. This convenient installation facilitates construction and solves the problem of existing GLLT composite hollow beam systems where adjacent composite hollow beams cannot be quickly connected and fixed, causing construction inconvenience. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 This is an exploded view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the positioning shaft of this utility model;

[0019] Figure 4 This is a schematic diagram of the mounting groove of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection between the two combined hollow beams of this utility model.

[0021] In the diagram: 1. Plywood board; 2. Web plate; 3. First connecting plate; 4. Second connecting plate; 5. Connecting frame; 6. Reinforcing plate; 7. Slanted panel; 8. Positioning shaft; 9. Connecting block; 10. Mounting plate; 11. Spring; 12. Positioning hole; 13. Mounting groove; 14. Through hole. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 5 In this embodiment, a composite hollow beam of glued laminated timber includes two glued laminated timber boards 1 corresponding to each other, and two web plates 2 are fixedly connected between the two glued laminated timber boards 1. The two glued laminated timber boards 1 and the two web plates 2 constitute the main body of the composite hollow beam.

[0024] In this embodiment, a connecting assembly is provided in the main body of the combined hollow beam. The connecting assembly includes a first connecting plate 3 and a second connecting plate 4 respectively disposed on both sides of the main body of the combined hollow beam. An inclined plate 7 is provided at the ends of the first connecting plate 3 and the second connecting plate 4 that are far apart from each other. Two positioning shafts 8 are inserted into the inner side of the first connecting plate 3 and the second connecting plate 4. A connecting block 9 is fixedly connected between the two positioning shafts 8. The ends of the two positioning shafts 8 are connected to a mounting piece 10. A spring 11 is connected to the side of the connecting block 9 near the mounting piece 10.

[0025] The first connecting plate 3 is fixedly connected to one side of the upper plywood board 1, and the second connecting plate 4 is fixedly connected to the side of the lower plywood board 1 away from the first connecting plate 3. Two positioning holes 12 are opened on the inner side of both the first connecting plate 3 and the second connecting plate 4. The inner side of the positioning holes 12 is adapted to the positioning shaft 8. The inner side of both the first connecting plate 3 and the second connecting plate 4 is provided with a mounting groove 13. Two through holes 14 are opened on both plywood boards 1 near the mounting groove 13. The positioning shaft 8 passes through the inner side of the mounting groove 13 and the through hole 14. The spring 11 is located on the inner side of the mounting groove 13. The end of the spring 11 away from the mounting piece 10 is connected to the plywood board 1.

[0026] It should be noted that the first connecting plate 3 and the second connecting plate 4 are both fixedly connected to the opposite ends of the connecting frame 5, and the two connecting frames 5 are fixedly connected to the reinforcing plate 6. The connecting frame 5 and the reinforcing plate 6 are both located inside the main body of the composite hollow beam. The reinforcing plate 6 is fixedly connected to the web plate 2. The structural strength of the main body of the composite hollow beam can be improved by setting the connecting frame 5 and the reinforcing plate 6.

[0027] The working principle of the above embodiments is as follows:

[0028] During installation, the side of the two combined hollow beam bodies closest to the first connecting plate 3 is aligned with the side of the other combined hollow beam body closest to the second connecting plate 4. This causes the first connecting plate 3 to push the positioning shaft 8 on the second connecting plate 4 of the other combined hollow beam body longitudinally via the inclined plate 7, thereby causing the connecting block 9 to compress the spring 11. Simultaneously, the second connecting plate 4 of the other combined hollow beam body also pushes the positioning shaft 8 on the current first connecting plate 3 longitudinally via the inclined plate 7 at its end. When the two combined hollow beam bodies are completely close together, the positioning hole 12 on the first connecting plate 3 corresponds to the positioning shaft 8 on the second connecting plate 4, and vice versa. At this point, the spring 11 resets the connecting block 9, allowing the positioning shaft 8 to engage with the positioning hole 12, thus achieving rapid fixation of the adjacent combined hollow beam bodies.

[0029] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented. It should be noted that the orientation or positional relationship indicated herein is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

Claims

1. A glued laminated timber composite hollow beam, characterized in that: It includes two plywood boards (1) that are corresponding to each other, and two web plates (2) are fixedly connected between the two plywood boards (1). The two plywood boards (1) and the two web plates (2) constitute a combined hollow beam body. A connecting component is provided in the combined hollow beam body. The connecting assembly includes a first connecting plate (3) and a second connecting plate (4) respectively disposed on both sides of the main body of the combined hollow beam. The ends of the first connecting plate (3) and the second connecting plate (4) that are far apart from each other are provided with inclined plates (7). Two positioning shafts (8) are inserted into the inner side of the first connecting plate (3) and the second connecting plate (4). A connecting block (9) is fixedly connected between the two positioning shafts (8). The ends of the two positioning shafts (8) are connected to a mounting plate (10). A spring (11) is connected to the side of the connecting block (9) near the mounting plate (10).

2. The glued laminated timber composite hollow beam according to claim 1, characterized in that: The first connecting plate (3) is fixedly connected to one side of the upper plywood board (1), and the second connecting plate (4) is fixedly connected to the side of the lower plywood board (1) away from the first connecting plate (3).

3. The glued laminated timber composite hollow beam according to claim 1, characterized in that: A connecting frame (5) is fixedly connected to the opposite ends of the first connecting plate (3) and the second connecting plate (4), and a reinforcing plate (6) is fixedly connected between the two connecting frames (5).

4. A glued laminated timber composite hollow beam according to claim 3, characterized in that: The connecting frame (5) and the reinforcing plate (6) are both located inside the main body of the combined hollow beam, and the reinforcing plate (6) is fixedly connected to the web plate (2).

5. A glued laminated timber composite hollow beam according to claim 1, characterized in that: The inner sides of the first connecting plate (3) and the second connecting plate (4) each have two positioning holes (12), and the inner sides of the positioning holes (12) are adapted to the positioning shaft (8).

6. A glued laminated timber composite hollow beam according to claim 1, characterized in that: The first connecting plate (3) and the second connecting plate (4) are provided with mounting grooves (13) on their inner sides, and the two plywood boards (1) are provided with two through holes (14) near the mounting grooves (13).

7. A glued laminated timber composite hollow beam according to claim 6, characterized in that: The positioning shaft (8) passes through the inner side of the mounting groove (13) and the through hole (14), and the spring (11) is located inside the mounting groove (13). The end of the spring (11) away from the mounting piece (10) is connected to the plywood board (1).

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