Laminated wood extension connecting structure

By combining the figure-eight and mountain-shaped connecting components with the slot structure, the stress concentration problem in glued laminated timber connections is solved, the connection strength and stability are improved, and a stable connection of glued laminated timber is achieved.

CN224244100UActive Publication Date: 2026-05-15WUHAN MANMU TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN MANMU TECH CO LTD
Filing Date
2025-08-05
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing glued laminated timber joint structures, bolted connections are prone to stress concentration, which leads to a decrease in the support strength of the joint nodes and affects the structural stability.

Method used

The system employs a combination structure of figure-eight connecting components, mountain-shaped connectors, and connecting slots with mountain-shaped slots to increase the contact area of ​​the connecting surfaces, and achieves a stable connection through connecting plates and fastening bolts.

Benefits of technology

It significantly improves the mechanical properties and structural stability of glued laminated timber joints, avoids stress concentration, and ensures the stable support strength of the structure under load.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of laminated wood, in particular to a laminated wood extension connecting structure which comprises first laminated wood and second laminated wood, a splayed connecting assembly and two symmetrically distributed E-shaped connecting pieces are fixedly connected to the surface of one side of the first laminated wood, two symmetrically-distributed connecting clamping grooves and two clamping grooves shaped like the Chinese character'shan 'are formed in the second laminated wood in a penetrating mode, the splayed connecting assembly comprises two symmetrically-distributed connecting clamping pieces, and each connecting clamping piece comprises an inclined block, a first arc-shaped block and a second arc-shaped block; connecting pieces are installed on the surfaces of the two opposite sides of the first laminated wood through two first fastening bolts, and two symmetrically-distributed second fastening bolts are connected to the connecting pieces in a threaded and penetrating mode. According to the connecting structure, the contact area of the connecting faces between the first laminated wood and the second laminated wood can be greatly increased, loads such as pressure can be more effectively transmitted, the mechanical property of the connecting structure is improved, and the stability of the first laminated wood and the second laminated wood when the first laminated wood and the second laminated wood are stressed is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of glued laminated timber technology, and more specifically, to a glued laminated timber extension connection structure. Background Technology

[0002] Glulam, as a new type of building material, is widely used in modern timber structures. It combines short timbers into long components, meeting the needs of large-span and complex architectural designs. However, in practical engineering, limitations in transportation and processing often necessitate extending the glued laminated timber to achieve the required length. However, existing technologies have the following shortcomings in their application:

[0003] Traditionally, glued laminated timber is connected using bolts. However, the small contact area between the bolts and the glued laminated timber makes it prone to stress concentration. After being subjected to loads for a long time, the glued laminated timber joints may crack due to stress concentration, leading to a decrease in the support strength of the joints and affecting the overall stability of the glued laminated timber structure.

[0004] Therefore, there is an urgent need for a glued laminated timber extension connection structure to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a glued laminated timber extension connection structure, which can solve the problem that glued laminated timber connected by bolts is prone to stress concentration, and that after long-term load bearing, the glued laminated timber connection may crack due to stress concentration, resulting in a decrease in the support strength of the connection node.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The application is as follows:

[0008] A glued laminated timber extension connection structure includes a first glued laminated timber and a second glued laminated timber. The first glued laminated timber has a figure-eight connecting component and two symmetrically distributed mountain-shaped connectors fixedly connected to one side surface. The second glued laminated timber has two symmetrically distributed connecting slots and two mountain-shaped slots through it.

[0009] The figure-eight connecting assembly includes two symmetrically distributed connecting clips, each of which includes a wedge block, a first arc-shaped block, and a second arc-shaped block.

[0010] The first glued laminated timber has connecting plates installed on both opposite sides by two first fastening bolts, and the connecting plates are threaded through by two symmetrically distributed second fastening bolts.

[0011] As a preferred technical solution of this application, the first arc-shaped block and the second arc-shaped block are arranged opposite to each other, and the first arc-shaped block and the second arc-shaped block are respectively located on opposite sides of the inclined block.

[0012] As a preferred technical solution of this application, the connecting clip and the mountain-shaped connecting clip are both integrally formed with the first glued laminated wood.

[0013] As a preferred technical solution of this application, the connecting slot is adapted to the connecting card, and the two connecting cards are respectively locked in the two connecting slots.

[0014] As a preferred technical solution of this application, the mountain-shaped slot is adapted to the mountain-shaped connector, and the two mountain-shaped connectors are respectively engaged in the two mountain-shaped slots.

[0015] As a preferred technical solution of this application, the screw end of the second fastening bolt is threaded into the second glued laminated timber, and both connecting pieces are in contact with the outer surface of the second glued laminated timber.

[0016] As a preferred technical solution of this application, the first glued laminated timber and the second glued laminated timber are bonded together.

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

[0018] 1. By using the figure-eight connecting components, mountain-shaped connectors, and connecting slots in combination with the mountain-shaped slots, the contact area of ​​the connecting surfaces between the first and second glued laminated timber is greatly increased, which can more effectively transmit loads such as pressure, improve the mechanical properties of the connecting structure, and ensure the structural stability of the first and second glued laminated timber under stress.

[0019] 2. With the help of the connecting piece, the first fastening bolt and the second fastening bolt, the stability of the connection between the first glued laminated timber and the second glued laminated timber can be guaranteed. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a glued laminated timber extension connection structure provided in this application. Figure 1 .

[0021] Figure 2 This is a structural diagram of the connecting clip and the mountain-shaped connector in a glued laminated timber extension connection structure provided in this application.

[0022] Figure 3 This is a schematic diagram of the second glued laminated timber in a glued laminated timber extension connection structure provided in this application.

[0023] Figure 4 A schematic diagram of the overall structure of a glued laminated timber extension connection structure provided in this application. Figure 2 .

[0024] The image shows:

[0025] 1. First glued laminated timber; 2. Second glued laminated timber; 3. V-shaped connector assembly; 4. Mountain-shaped connector; 5. Connecting slot; 6. Mountain-shaped slot; 31. Connecting clip; 32. Wedge block; 33. First arc block; 34. Second arc block; 7. Connecting piece. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not 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 on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Example:

[0029] like Figure 1-4As shown, this embodiment proposes a glued laminated timber extension connection structure, including a first glued laminated timber 1 and a second glued laminated timber 2. A figure-eight connecting component 3 and two symmetrically distributed mountain-shaped connectors 4 are fixedly connected to one side surface of the first glued laminated timber 1. The second glued laminated timber 2 has two symmetrically distributed connecting slots 5 and two mountain-shaped slots 6 through it. The figure-eight connecting component 3 includes two symmetrically distributed connecting clips 31. First, the two connecting clips 31 on the first glued laminated timber 1 are aligned with the two connecting slots 5 on the second glued laminated timber 2, and the two mountain-shaped connectors 4 are aligned with the two mountain-shaped slots 6. Then, the two... Each connecting clip 31 is respectively engaged in two connecting slots 5, and each of the two mountain-shaped connecting clips 4 is respectively engaged in two mountain-shaped slots 6, thereby realizing the initial connection between the first glued laminated timber 1 and the second glued laminated timber 2. The connecting clip 31 includes a wedge block 32, a first arc-shaped block 33 and a second arc-shaped block 34. The first arc-shaped block 33 and the second arc-shaped block 34 are arranged opposite to each other. The first arc-shaped block 33 and the second arc-shaped block 34 are located on opposite sides of the wedge block 32. Each opposite side of the first glued laminated timber 1 is fitted with a connecting piece 7 by two first fastening bolts. Two symmetrically distributed second fastening bolts are threaded through the connecting piece 7.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the connecting clip 31 and the mountain-shaped connector 4 are integrally formed with the first glued laminated timber 1. The connecting slot 5 is adapted to the connecting clip 31, and the two connecting clips 31 are respectively locked in the two connecting slots 5. The mountain-shaped slot 6 is adapted to the mountain-shaped connector 4, and the two mountain-shaped connectors 4 are respectively locked in the two mountain-shaped slots 6. The first glued laminated timber 1 and the second glued laminated timber 2 are attached together. Through the cooperation of the two connecting clips 31 with the two connecting slots 5, and the cooperation of the two mountain-shaped connectors 4 with the two mountain-shaped slots 6, the contact area of ​​the connecting surfaces between the first glued laminated timber 1 and the second glued laminated timber 2 is greatly increased, which can more effectively transmit loads such as pressure, improve the mechanical properties of the connection structure, and ensure the structural stability of the first glued laminated timber 1 and the second glued laminated timber 2 under stress environment.

[0031] like Figure 1 and Figure 4 As shown, the screw end of the second fastening bolt is threaded into the second glued laminated timber 2, and both connecting pieces 7 are in contact with the outer surface of the second glued laminated timber 2. Through the cooperation of the connecting pieces 7, the first fastening bolt and the second fastening bolt, the first glued laminated timber 1 and the second glued laminated timber 2 can be tightly connected as one, realizing the extension connection of the glued laminated timber and ensuring the stability of the connection between the first glued laminated timber 1 and the second glued laminated timber 2.

[0032] The working principle of the above embodiment is as follows: First, align the two connecting clips 31 on the first glued laminated timber 1 with the two connecting slots 5 on the second glued laminated timber 2, and align the two U-shaped connecting pieces 4 with the two U-shaped slots 6. Then, insert the two connecting clips 31 into the two connecting slots 5 and the two U-shaped connecting pieces 4 into the two U-shaped slots 6, thus achieving a preliminary connection between the first glued laminated timber 1 and the second glued laminated timber 2. Next, install the two connecting pieces 7 on both sides of the first glued laminated timber 1 using the first fastening bolt, so that both connecting pieces 7 are in contact with the outer surface of the second glued laminated timber 2. Finally, pass the second fastening bolt through the connecting pieces 7. The first and second glued laminated timbers are screwed into the second glued laminated timber 2 to complete the fastening, thus tightly connecting the first and second glued laminated timbers 1 and 2 into one unit, achieving the extension connection of the glued laminated timbers. Through the cooperation of two connecting clips 31 with two connecting slots 5, and two mountain-shaped connectors 4 with two mountain-shaped slots 6, the contact area of ​​the connecting surfaces between the first and second glued laminated timbers 1 and 2 is greatly increased, which can more effectively transmit loads such as pressure, improve the mechanical performance of the connection structure, ensure the structural stability of the first and second glued laminated timbers 1 and 2 under stress environment, and at the same time, effectively disperse stress, avoid stress concentration, ensure stable support under different loads, and maintain support strength.

[0033] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A glued laminated timber extension connection structure, characterized in that: The first glued laminated timber (1) and the second glued laminated timber (2) are included. The first glued laminated timber (1) has a figure-eight connecting component (3) and two symmetrically distributed mountain-shaped connectors (4) fixedly connected to one side surface. The second glued laminated timber (2) has two symmetrically distributed connecting slots (5) and two mountain-shaped slots (6) through it. The figure-eight connecting component (3) includes two symmetrically distributed connecting clips (31), each connecting clip (31) including a wedge (32), a first arc-shaped block (33), and a second arc-shaped block (34). The first glued laminated timber (1) has connecting pieces (7) installed on both sides of the first fastening bolts. The connecting pieces (7) are threaded through and connected to two symmetrically distributed second fastening bolts.

2. The glued laminated timber extension connection structure according to claim 1, characterized in that, The first arc block (33) and the second arc block (34) are arranged opposite to each other, and the first arc block (33) and the second arc block (34) are located on opposite sides of the inclined block (32).

3. The glued laminated timber extension connection structure according to claim 1, characterized in that, The connecting clip (31) and the mountain-shaped connecting clip (4) are both integrally formed with the first glued laminated wood (1).

4. The glued laminated timber extension connection structure according to claim 1, characterized in that, The connecting slot (5) is adapted to the connecting card (31), and the two connecting cards (31) are respectively locked in the two connecting slots (5).

5. The glued laminated timber extension connection structure according to claim 1, characterized in that, The mountain-shaped slot (6) is adapted to the mountain-shaped connector (4), and the two mountain-shaped connectors (4) are respectively locked in the two mountain-shaped slots (6).

6. The glued laminated timber extension connection structure according to claim 1, characterized in that, The screw end of the second fastening bolt is threaded into the second glued laminated timber (2), and both connecting pieces (7) are in contact with the outer surface of the second glued laminated timber (2).

7. The glued laminated timber extension connection structure according to claim 1, characterized in that, The first glued laminated timber (1) and the second glued laminated timber (2) are bonded together.