Laminated wood spliced beam

Abstract

The utility model relates to the technical field of laminated wood, and discloses a laminated wood splicing beam which comprises two groups of spliced laminated wood beams, a splicing frame is arranged between the two groups of laminated wood beams, and the upper side and the lower side of the splicing frame are clamped in assembling grooves. Splicing fastening assemblies used for splicing the laminated wood beams on the two sides for fixing are arranged on the two sides of the middle of the splicing frame, inserting holes corresponding to the splicing fastening assemblies are formed in the sides, opposite to the splicing frame, of the laminated wood beams, and fastening bolts penetrating through the splicing frame to be screwed into the laminated wood beams for fixing are arranged on the surface of the splicing frame. When an inserting rod is inserted into an inserting hole for splicing, a rotary conical head can make contact with the bottom wall, then a sliding block can be driven to slide relatively, an inserting plate can be driven to obliquely and upwards penetrate into a laminated wood beam, and the splicing stability is improved; furthermore, the splicing stability can be further improved, the transverse drawing force can be borne, and the splicing position is prevented from being easily snapped.

Description

Technical Field

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

[0002] Glulam is an engineered timber produced through gluing and lamination technology. It is commonly used in timber-framed buildings, primarily for load-bearing applications. Its strength-to-weight ratio is superior to traditional timber and can even rival that of concrete and steel structures.

[0003] A glued laminated timber (GLBT) spliced ​​beam, as disclosed in Chinese Patent Publication No. CN221441901U, includes a left GLBT beam, a right GLBT beam, and a T-shaped steel section. The T-shaped steel section includes a base plate, vertical plates, and reinforcing bars. The base plate includes a left plate portion and a right plate portion. The reinforcing bars include a left rod portion and a right rod portion. The left rod portion is inserted into the right end of the left GLBT beam, and the left GLBT beam is fixedly connected to the left plate portion. The right rod portion is inserted into the left end of the right GLBT beam, and the right GLBT beam is fixedly connected to the right plate portion. This utility model of a GLBT spliced ​​beam uses a T-shaped steel section with reinforcing bars to splice two GLBT beams, and uses screws to fix the GLBT beams to the T-shaped steel section, forming a spliced ​​structure with reinforcing bars and bottom screw connections. This can improve the bending resistance and overall strength of the GLBT spliced ​​beam, making it suitable for large-span buildings and replacing finger-jointed GLBT beams in large-span buildings.

[0004] In the process of realizing this application, the inventors discovered that the technology has at least the following problems: Although the above technical solution can improve the bending performance and overall strength of glued laminated timber beams, its load-bearing strength is mainly applicable to longitudinal forces. When glued laminated timber beams are subjected to lateral tensile forces, they are still prone to breakage of the crossbeams on both sides. Therefore, further improvements can be made. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides the following technical solution: a glued laminated timber (GLLT) splicing beam, comprising two sets of GLLT beams to be spliced ​​together. The butt joints of the GLLT beams are provided with assembly grooves. An I-shaped splicing frame for splicing is provided between the two sets of GLLT beams, with the upper and lower sides of the splicing frame fitting into the assembly grooves. Splicing fastening components for fixing the GLLT beams are provided on both sides of the middle portion of the splicing frame. An insertion hole is provided on one side of the GLLT beam opposite the splicing frame corresponding to the splicing fastening components. Fastening bolts are provided on the surface of the splicing frame, penetrating and screwing into the GLLT beams for fixing.

[0006] As an optimization, the splicing fastening assembly includes insert rods fixedly installed on both sides of the middle of the splicing frame. The insert rods have sliding holes inside, and the sliding holes are provided with piercing elements for positioning by inserting them outward into the glued laminated timber beams. By inserting the insert rods into the holes, the glued laminated timber beams on both sides can be spliced. Then, by inserting the piercing elements into the glued laminated timber beams, the stability of the splicing is further improved.

[0007] As an optimization, the puncture device includes a through-hole insert rod inserted into a sliding hole. A slider is fixedly installed at one end of the insert rod inserted into the sliding hole, and the slider is slidably connected inside the sliding hole. A connector is fixedly installed at the center of the slider, and an insert plate is rotatably connected to the internal array of the connector. A groove is opened on the outer side of the insert rod corresponding to the insert plate, and the end of the insert plate away from the connector is slidably connected inside the groove.

[0008] As an optimization, the chamfer on the side wall of the groove away from the slider is a guide, and the end of the insert plate slides against the surface of the guide. The guide causes the insert plate to slide along its surface, thereby inserting the insert plate obliquely upward into the glued laminated timber beam.

[0009] As an optimization, the end of the insert plate has a sharp piercing end with barbs. The barbs make the insert plate difficult to pull out, and thus it can bite the crossbeam when subjected to lateral force to prevent it from being easily pulled off.

[0010] As an optimization, the other end of the slide bar is rotatably connected to a spiral cone head, and the outer side of the spiral cone head is provided with a spiral blade. By inserting the insert rod into the insertion hole, the spiral blade on the outer side of the spiral cone head will rotate into the glued laminated timber beam, thereby further improving the splicing stability.

[0011] As an optimization, the glued laminated timber beams are reinforced with internal ribs during the pressing process to further enhance their strength.

[0012] The beneficial effects of this utility model are:

[0013] When this glued laminated timber (GLBT) beam is spliced ​​by inserting the insert rod into the insertion hole, the spiral cone head contacts the bottom wall, which in turn causes the slider to slide relative to it. This causes the insert plate to pierce into the GLBT beam at an angle, improving the splicing stability. At the same time, due to the pressure on the spiral cone head, it rotates into the GLBT beam through its outer spiral blade, which further improves the splicing stability and can withstand lateral tensile forces, preventing the splice from being easily pulled apart. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the glued laminated timber beam structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the splicing frame structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the splicing and fastening structure of this utility model;

[0018] Figure 5 This is a front sectional view of the splicing and fastening structure of this utility model.

[0019] In the diagram: 1. Glulam beam; 2. Assembly slot; 3. Splicing frame; 4. Splicing fastening assembly; 5. Insertion hole; 6. Fastening bolt; 7. Insert rod; 8. Sliding hole; 9. Sliding rod; 10. Sliding block; 11. Connector; 12. Insert plate; 13. Slide groove; 14. Guide part; 15. Spiral cone head; 16. Reinforcing rib. Detailed Implementation

[0020] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are 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.

[0021] 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.

[0022] Please see Figure 1-3 A glued laminated timber (GLLT) splicing beam includes two sets of GLLT beams 1 for splicing. During the pressing process, reinforcing ribs 16 are placed inside the GLLT beams 1 to further enhance their strength and improve their load-bearing capacity. The joint ends of the GLLT beams 1 are provided with assembly grooves 2. An I-shaped splicing frame 3 for splicing is provided between the two sets of GLLT beams 1, and the upper and lower sides of the splicing frame 3 are locked in the assembly grooves 2. The middle two sides of the splicing frame 3 are provided with splicing fastening components 4 for fixing the GLLT beams 1 on both sides. The side of the GLLT beam 1 opposite to the splicing frame 3 is provided with insertion holes 5 corresponding to the splicing fastening components 4. The surface of the splicing frame 3 is provided with fastening bolts 6 that pass through it and screw into the GLLT beams 1 for fixing.

[0023] Please see Figure 4-5The splicing fastening assembly 4 includes insert rods 7 fixedly installed on both sides of the middle part of the splicing frame 3. The insert rods 7 have sliding holes 8 inside, and the sliding holes 8 are provided with piercing parts for positioning by inserting them outward into the glued laminated timber beams 1. By inserting the insert rods 7 into the insertion holes 5, the glued laminated timber beams 1 on both sides can be spliced. Then, by inserting the piercing parts into the glued laminated timber beams 1, the stability of the splicing is further improved.

[0024] Please see Figure 4-5 The piercing component includes a sliding rod 9 that penetrates the insertion rod 7 and is inserted into the sliding hole 8. A slider 10 is fixedly installed at one end of the sliding rod 9 that is inserted into the sliding hole 8, and the slider 10 is slidably connected inside the sliding hole 8. A connector 11 is fixedly installed at the center of the slider 10, and an insertion plate 12 is rotatably connected to the internal array of the connector 11. The end of the insertion plate 12 has a sharp piercing end and a barb. The barb makes the insertion plate 12 difficult to pull out, and thus can bite the crossbeam when subjected to lateral force to prevent it from being easily pulled off.

[0025] Please see Figure 4-5 The outer side of the insertion rod 7 is provided with a groove 13 corresponding to the insertion plate 12, and the end of the insertion plate 12 away from the connector 11 is slidably connected to the inside of the groove 13. The side wall of the groove 13 away from the slider 10 is chamfered to form a guide part 14, and the end of the insertion plate 12 slides against the surface of the guide part 14. When the insertion rod 7 is inserted into the insertion hole 5, the end of the slider 9 outside the insertion rod 7 will abut against the inner wall of the insertion hole 5, which will drive the slider 10 to slide relative to the insertion rod 7 along the inner wall of the sliding hole 8. Therefore, the insertion plate 12 can be driven to move outward along the inner wall of the groove 13, and the insertion plate 12 will slide along its surface through the guide part 14, which will then pierce the glued laminated timber beam 1 diagonally upward, improving the splicing stability.

[0026] Please see Figure 4-5 The other end of the slide rod 9 is rotatably connected to a spiral cone head 15, and the outer side of the spiral cone head 15 is provided with a spiral blade. After the insertion rod 7 is inserted into the insertion hole 5, the spiral blade on the outer side of the spiral cone head 15 will rotate into the glued laminated timber beam 1, which will further improve the splicing stability and be able to bear the lateral tensile force, preventing the splicing from being easily pulled apart.

[0027] In use, insert the insert rod 7 into the corresponding insertion hole 5 until the upper and lower sides of the splicing frame 3 are engaged in the assembly groove 2. Similarly, splice the other side of the glued laminated timber beam 1. At this time, the spiral cone head 15 at the end of the insert rod 7 will contact the bottom wall, which will drive the slider 10 to slide relative to the inner wall of the sliding hole 8. Therefore, the insert plate 12 will slide outward against the surface of the guide part 14, and then the insert plate 12 can be inserted obliquely upward into the glued laminated timber beam 1 to improve the splicing stability. At the same time, due to the pressure of the spiral cone head 15, it will rotate into the glued laminated timber beam 1 through its outer spiral blade, which will further improve the splicing stability, and the splicing can be completed.

[0028] In summary, when the glued laminated timber beam is spliced ​​by inserting the insert rod 7 into the insert hole 5, the spiral cone head 15 will contact the bottom wall, which will cause the slider 10 to slide relative to it. Therefore, the insert plate 12 will be driven to penetrate the glued laminated timber beam 1 at an angle upward, thereby improving the splicing stability. At the same time, due to the pressure on the spiral cone head 15, it will rotate into the glued laminated timber beam 1 through its outer spiral blade, which will further improve the splicing stability and can withstand lateral tensile force, preventing the splice from being easily pulled apart.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A glued laminated timber (GLTL) splicing beam, comprising two sets of GLTL beams (1) spliced ​​together, wherein the butt joint ends of the GLTL beams (1) are provided with assembly grooves (2), characterized in that: A splicing frame (3) for splicing is provided between two sets of glued laminated timber beams (1), and the upper and lower sides of the splicing frame (3) are locked in the assembly groove (2). The middle two sides of the splicing frame (3) are provided with splicing fastening components (4) for splicing and fixing the glued laminated timber beams (1) on both sides. The glued laminated timber beam (1) has a hole (5) corresponding to the splicing fastening component (4) on one side of the glued laminated timber beam (3). The surface of the splicing frame (3) is provided with fastening bolts (6) that pass through it and are screwed into the glued laminated timber beam (1) for fixing.

2. The glued laminated timber spliced ​​beam according to claim 1, characterized in that: The splicing fastening assembly (4) includes insert rods (7) fixedly installed on both sides of the middle part of the splicing frame (3). The insert rods (7) have sliding holes (8) inside. The sliding holes (8) are provided with piercing parts for piercing outward into the interior of the glued laminated timber beam (1) for positioning.

3. The glued laminated timber spliced ​​beam according to claim 2, characterized in that: The puncture device includes a through rod (7) inserted into a sliding hole (8) and a slide rod (9). A slider (10) is fixedly installed at one end of the slide rod (9) inserted into the sliding hole (8), and the slider (10) is slidably connected inside the sliding hole (8). A connector (11) is fixedly installed at the center of the slider (10), and an insert plate (12) is rotatably connected inside the connector (11). A groove (13) is opened on the outer side of the through rod (7) corresponding to the insert plate (12), and the end of the insert plate (12) away from the connector (11) is slidably connected inside the groove (13).

4. The glued laminated timber spliced ​​beam according to claim 3, characterized in that: The chamfer on the side wall of the groove (13) away from the slider (10) forms a guide portion (14), and the end of the insert plate (12) slides against the surface of the guide portion (14).

5. The glued laminated timber spliced ​​beam according to claim 3, characterized in that: The end of the insert (12) has a sharp piercing end, and the piercing end has barbs.

6. The glued laminated timber spliced ​​beam according to claim 3, characterized in that: The other end of the slide bar (9) is rotatably connected to a spiral cone head (15), and the outer side of the spiral cone head (15) is provided with a spiral blade.

7. The glued laminated timber spliced ​​beam according to any one of claims 1-6, characterized in that: The glued laminated timber beam (1) has reinforcing ribs (16) placed inside it during the pressing process.

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