A diagonal mortise wood member for repairing ancient buildings and a construction method thereof
By using the construction method of slanted wooden components, and utilizing the connection method of slanted surfaces and glue injection space, the problem of secondary damage to ancient buildings caused by screw and steel nail fixing is solved, achieving tool-free connection and protection of the original wooden structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
- Filing Date
- 2024-04-17
- Publication Date
- 2026-08-04
AI Technical Summary
Current technology for restoring ancient buildings, using screws, nails, and other tools to fix new wooden components, can cause secondary damage to the wooden structure being repaired, violating the basic principles of cultural relic protection.
The construction method using slanted wooden components involves connecting the first and second filler blocks via a connecting mechanism, avoiding the use of screws and nails. The slanted contact between the first and second filler blocks pushes the second filler block away, and the third filler block is inserted into the groove. Glue is then injected through the glue injection space to fix the connection, achieving a tool-free connection.
This approach minimizes secondary damage to the repaired wooden structure, preserves the original characteristics of the wooden structure, and ensures that the new wood is not exposed on the outer surface after installation, thus conforming to the principles of cultural relic protection.
Smart Images

Figure CN118167082B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ancient building restoration technology, and more specifically, to a slanted wooden component for repairing ancient buildings and its construction method. Background Technology
[0002] Like all historical relics, the value of ancient buildings lies in the fact that they are legacies of history, impossible to reproduce or rebuild, and once damaged, irreparable. Therefore, restoration work must adhere to the fundamental principles of cultural relic preservation. First, the restored and supplemented parts must form a cohesive whole with the original, maintaining overall harmony and contributing to the restoration rather than diminishing its artistic and informational value. Second, any additions must be distinct from the originals, allowing people to differentiate between contemporary restorations and original artifacts, thus preserving the historical continuity and authenticity of the historical and artistic evidence of the building.
[0003] In existing technologies, the damaged area is usually first removed to create an opening, and then a new replacement wooden component is used to fill the opening. The wooden component is then fixed to the opening in the wooden structure to be repaired using screws and nails. This method still causes significant damage to the wooden structure to be repaired. Summary of the Invention
[0004] To overcome the shortcomings mentioned above, this invention aims to provide a slanted wooden component for repairing ancient buildings and its construction method, which can reduce secondary damage to the main body to be repaired during the repair process.
[0005] A slanted wooden component for repairing ancient buildings includes a first filling block and a second filling block. The two second filling blocks are located on both sides of the first filling block. An opening is provided on the main body to be repaired. The opening includes a first filling groove and a second filling groove that are connected. The second filling blocks are fixedly connected to the second filling grooves. Adjacent first filling blocks are fixedly connected to each other. The first filling blocks and the second filling blocks are connected by a connecting mechanism. The first filling blocks are reusable old wood materials that have been protectively removed from the building where the main body to be repaired is located. The second filling blocks are new wood materials.
[0006] Furthermore, the connecting mechanism includes a first insert block and a second insert block, wherein the first insert block has a first inclined surface and the second insert block has a second inclined surface adapted to the first inclined surface.
[0007] Furthermore, the first filling block has a first slot adapted to the first insert and a second slot adapted to the second insert. The first slot and the second slot are connected. A third insert is fixed to one end of each of the two second inserts that are far apart from each other. A third slot adapted to the third insert is provided on the second filling block.
[0008] Furthermore, an injection space is formed between the side wall of the first insert, the second inclined surface, and the second slot, and an injection hole communicating with the injection space is provided on the first insert.
[0009] Furthermore, the cross-section of the second filling groove is a right-angled triangle.
[0010] Furthermore, the third insert has an installation end near the end of the second insert, and the second insert has an installation groove that matches the installation end. The installation end is inserted into the installation groove and connected by glue.
[0011] A construction method for obliquely inserted wooden components used in the repair of ancient buildings includes the following steps:
[0012] Step 1: Cleaning the rotten and damaged areas. Clean the damaged areas of the main body to be repaired. Use a scraper to scrape off the rotten wood on the surface, and after removing the paint from the surface around the rotten area, sand it with sandpaper. Then clean the rotten area further and cut an opening.
[0013] Step two, making materials: First, measure and record the data of the first and second filling slots in the processed opening. Cut the old wood that can be reused after protective demolition on the building where the main body to be repaired is located into multiple first filling blocks using a hand saw. Use new wood and cut the new wood into second filling blocks that are compatible with the second filling slots.
[0014] Step 3: Cut grooves and drill holes, and make connecting mechanisms. Cut out the first slot and the second slot on the first filling block, and make the first insert block that fits the first slot and the second insert block that fits the second slot. Cut out the third insert block using new wood, process the third slot on the second filling block, and drill holes in the first insert block to form injection holes.
[0015] Step 4, Material Installation: First, fix the second filler block to the second filler groove with glue. Fix the two adjacent first filler blocks to each other with glue. Insert the second insert into the second slot and make sure the third insert is completely in the second slot. Insert the first filler block into the first filler groove. Push the first insert into the first slot and then inject glue into the glue injection space through the injection hole. After the glue cools down, the installation is complete.
[0016] Step 5: Restore the exterior finish. Based on the original exterior finish of the main body to be repaired, select one coat of clear varnish or two coats of mixed varnish to ensure that the style of the wooden components is consistent with the original finish, thus restoring the old as it was.
[0017] Furthermore, in step one, a flat chisel and a wooden hammer are used to process the first filling groove, and then a second filling groove with slanted openings is processed on both sides of the first filling groove.
[0018] Furthermore, in step three, the shapes of the first and second slots are first outlined on the first filling block using an ink pen, and then processed using a flat chisel and a wooden hammer. A hand saw is used to make the first bevel on the first insert block and the second bevel on the second insert block.
[0019] Compared with the prior art, the beneficial effects of the present invention are:
[0020] ① In this invention, during the process of pushing the first insert into the first slot, the first inclined surface and the second inclined surface contact and push the two second inserts away from each other, and the third insert is gradually inserted into the third slot. When the first insert is fully inserted into the first slot, the third insert is fully inserted into the second slot. At this time, glue is injected into the glue injection space through the injection hole. After the glue solidifies, it fixes the first insert and the second insert, and fixes the first insert and the second insert to the first slot and the second slot, so that the first insert will not move, the second insert will not move, and the third insert is always located in the third slot so that the first filling block will not fall out of the first filling groove. There is no need to use tools such as screws and nails that need to be embedded in the body to be repaired for fixation, reducing secondary damage to the body to be repaired during repair.
[0021] ② In this invention, although the second filling block is made of new wood, after the wooden components of this invention are installed, the second filling block will not be exposed on the outer surface. The first filling block is made of the original old wood, which retains the characteristics of the original wooden structure from the perspective of building materials. Attached Figure Description
[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:
[0023] Figure 1 This is a schematic diagram of the overall structure of a slanted wooden component used for repairing ancient buildings;
[0024] Figure 2 This is a schematic diagram of an opening;
[0025] Figure 3 It is a cross-sectional view of the opening;
[0026] Figure 4 This is a structural breakdown diagram of a slanted wooden component used for repairing ancient buildings;
[0027] Figure 5 This is a cross-sectional view of the first and second filled blocks;
[0028] Figure 6 This is a cross-sectional view of the first filled block;
[0029] Figure 7 This is a cross-sectional view of the first insert block;
[0030] Figure 8 This is a cross-sectional view of the second and third insert blocks;
[0031] In the diagram: 1. First filler block; 11. First slot; 12. Second slot; 2. Second filler block; 21. Third slot; 3. Main body to be repaired; 31. Opening; 311. First filler groove; 312. Second filler groove; 4. Connecting mechanism; 41. First insert; 411. First inclined surface; 412. Injection hole; 42. Second insert; 421. Second inclined surface; 422. Mounting groove; 43. Third insert; 431. Mounting end; 44. Glue injection space. Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific implementation examples:
[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a slanted insert wooden component for repairing ancient buildings includes a first filler block 1 and a second filler block 2. In this embodiment, two of each type are provided, with the second filler block 2 located on both sides of the first filler block 1. The main body 3 to be repaired is the wooden component to be repaired. An opening 31 is provided on the main body 3 to remove insect-eaten or rotten parts from the main body 3. The opening 31 is a slanted insert. In this embodiment, the cross-section of the opening 31 is an isosceles trapezoid. The opening 31 includes a first filler groove 311 and a second filler groove 31 that are connected. 2. The first filling groove 311 has a rectangular cross-section and is adapted to the first filling block 1. The second filling groove 312 has a right-angled triangular cross-section and is adapted to the second filling block 2. The first filling block 1 and the second filling block 2 are placed in the opening 31 and the second filling block 2 is fixedly connected to the second filling groove 312 by glue. Adjacent first filling blocks 1 are fixedly connected by glue. The first filling block 1 is reusable old wood that has been protectively removed from the building where the main body 3 is located. The second filling block 2 is new wood. The first filling block 1 and the second filling block 2 are connected by a connecting mechanism 4.
[0035] like Figure 4 , Figure 5 , Figure 6, Figure 7 , Figure 8 As shown, the connecting mechanism 4 includes a first insert 41 and two second inserts 42. The first insert 41 has two first inclined surfaces 411. In this embodiment, the angle between the first inclined surface 411 and the side of the first insert 41 that is close to the first inclined surface 411 is 135 degrees. The end of the second insert 42 closest to the first insert 41 has a second inclined surface 421 that matches the first inclined surface 411. The first filling block 1 has a first slot 11 that matches the first insert 41 and a second slot 12 that matches the second insert 42. The two second slots 12 are connected to the first slots 11. The ends of the two second inserts 42 that are far apart from each other are fixedly connected to several... The third insert 43 is provided in this embodiment. There are four third inserts 43. The second filling block 2 has a third slot 21 on the side near the third insert 43, which is adapted to its number and shape. When the first insert 41 is fully inserted into the first slot 11, a glue injection space 44 is formed between the side wall of the first insert 41, the second inclined surface 421 and the second slot 12. The first insert 41 has an injection hole 412. One end of the injection hole 412 is connected to the glue injection space 44, and the other end is connected to the end face of the first insert 41 near the outside. Glue can be injected into the glue injection space 44 through the injection hole 412 to fix the first insert 41 and the second insert 42 together. During the process of pushing the first insert 41 into the first slot 11, the first inclined surface 411 and the second inclined surface 421 contact and push the two second inserts 42 away from each other, and the third insert 43 is gradually inserted into the third slot 21. When the first insert 41 is fully inserted into the first slot 11, the third insert 43 is fully inserted into the second slot 12. At this time, glue is injected into the glue injection space 44 through the injection hole 412. After the glue solidifies, it fixes the first insert 41 and the second insert 42 together, and also fixes the first insert 41 and the second insert 42 to the first slot 11 and the second slot 21. The 12 fixed connection prevents the first insert 41 from moving, prevents the second insert 42 from moving, and ensures that the third insert 43 is always located in the third slot 21 so that the first filling block 1 will not fall out of the first filling groove 311. There is no need to use tools such as screws or nails that need to be embedded in the main body 3 to be repaired for fixation, thus avoiding secondary damage to the main body 3 to be repaired during repair. Although the second filling block 2 is made of new wood, it will not be exposed on the outer surface after the wooden components of this invention are installed. The first filling block 1 is made of the original old wood, which retains the characteristics of the original wooden structure from the perspective of building materials.
[0036] like Figure 8 As shown, the third insert 43 has an installation end 431 at one end near the second insert 42. The second insert 42 has an installation groove 422 that matches the installation end 431. The installation end 431 is inserted into the installation groove 422 and fixedly connected by glue.
[0037] The working principle of a slanted wooden component for repairing ancient buildings in this embodiment is as follows: First, two second filling blocks 2 are placed into the second filling groove 312 in the opening 31 and connected with glue. The two first filling blocks 1 are then fixedly connected with glue. The second insert 42 is inserted into the second slot 12 and the third insert 43 is completely located in the second slot 12. Then, the first filling block 1 is placed into the first filling groove 311 in the opening 31. After that, the first insert 41 is inserted into the first slot 11. During the process of pushing the first insert 41 into the first slot 11, the first inclined surface 411 and the second inclined surface 421 contact and push the two second inserts 42. 2. Move away from each other and gradually insert the third insert 43 into the third slot 21. After the first insert 41 is fully inserted into the first slot 11, the third insert 43 and the third slot 21 cooperate to prevent the first filling block 1 from coming out of the opening 31. Inject glue into the glue injection space 44 through the injection hole 412. After the glue solidifies, the opening 31 is filled. There is no need to use screws, nails or other tools that need to be embedded in the main body 3 to be repaired for fixation, which reduces secondary damage to the main body 3 to be repaired during the repair. Then, according to the original exterior finish of the main body 3 to be repaired, select clear paint or mixed paint for the wooden components to be treated with one base coat and two top coats, respecting the original style of the ancient building and maintaining its historical appearance.
[0038] The present invention discloses a construction method for a slanted wooden component used in the repair of ancient buildings, comprising the following steps:
[0039] Step 1: Cleaning the rotten and damaged areas. First, clean the damaged areas of the main body 3 to be repaired. Use a scraper to remove the rotten wood on the surface, and after removing the paint from the surface around the rotten area, sand it with sandpaper. Then, clean the rotten area further and cut an opening 31. Use a flat chisel and a wooden hammer to process the first filling groove 311. Then, process the second filling groove 312, which is formed by slanted insertion on both sides of the first filling groove 311. The second filling groove 312 is used to place the second filling block 2.
[0040] Step 2: Material preparation. First, measure and record the data of the first filling groove 311 and the second filling groove 312 in the processed opening 31. Cut the old wood that can be reused after protective removal from the building where the main body 3 is located into multiple first filling blocks 1 using a hand saw. The multiple first filling blocks 1 are connected along the length of the opening 31 to fit the first filling groove 311. Use new wood and cut the new wood into second filling blocks 2 that fit the second filling groove 312.
[0041] Step 3: Cut grooves and drill holes, and make connecting mechanism 4. Use an ink pen to outline the shape of the first slot 11 and the second slot 12 on the first filling block 1. Use a flat chisel and a wooden hammer to process the upper surface of the first filling block 1, cut out the first slot 11 and the second slot 12, and use new wood to make the first insert 41 that fits the first slot 11 and the second insert 42 that fits the second slot 12. Use a hand saw to make the first bevel 411 on the first insert 41 and the second bevel 421 on the second insert 42. Cut the mounting groove 422 on the second insert 42. Use new wood to make the third insert 43 with the mounting end 431 that can be inserted into the mounting groove 422. Use an electric drill to drill holes in the first insert 41 to form the injection hole 412. Process the third slot 21 on the second filling block 2.
[0042] Step 4, material installation: First, fix the second filler block 2 to the second filler groove 312 with glue. Fix the two adjacent first filler blocks 1 to each other with glue. Insert the second insert 42 into the second slot 12 and make the third insert 43 completely located in the second slot 12. Insert the first filler block 1 into the first filler groove 311. Push the first insert 41 into the first slot 11 and then inject glue into the glue injection space 44 through the injection hole 412. After the glue cools down, the installation is complete.
[0043] Step 5: Restore the exterior finish. Based on the original exterior finish of the main body 3 to be repaired, select clear varnish or mixed varnish for one base coat and two top coats to ensure that the style of the wooden components is consistent with the original finish style, so as to restore the old as it was.
[0044] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A slanted wooden component for repairing ancient buildings, characterized in that: The device includes a first filling block (1) and a second filling block (2), with the two second filling blocks (2) located on both sides of the first filling block (1). An opening (31) is provided on the main body (3) to be repaired. The opening (31) includes a first filling groove (311) and a second filling groove (312) that are connected. The second filling block (2) is fixedly connected to the second filling groove (312). Two adjacent first filling blocks (1) are fixedly connected. The first filling block (1) and the second filling block (2) are connected by a connecting mechanism (4). The connecting mechanism (4) includes a first insert (41) and a second insert (42). The first insert (41) has a first inclined surface (411), and the second insert (42) has a second inclined surface (421) that is adapted to the first inclined surface (411). The first filling block (1) is a reusable old wood material that is protectively removed from the building where the main body (3) is located, and the second filling block (2) is a new wood material; the first filling block (1) is provided with a first slot (11) that matches the first insert (41) and a second slot (12) that matches the second insert (42), the first slot (11) and the second slot (12) are connected, and a third insert (43) is fixedly connected to one end of each of the two second inserts (42) that are far apart from each other, and a third slot (21) that matches the third insert (43) is provided on the second filling block (2); an injection space (44) is formed between the side wall of the first insert (41), the second inclined surface (421) and the second slot (12), and an injection hole (412) that communicates with the injection space (44) is provided on the first insert (41).
2. A slanted wooden component for repairing ancient buildings according to claim 1, characterized in that: The cross-section of the second filling groove (312) is a right triangle.
3. A slanted wooden component for repairing ancient buildings according to claim 1, characterized in that: The third insert (43) has an installation end (431) near the end of the second insert (42). The second insert (42) has an installation groove (422) that is compatible with the installation end (431). The installation end (431) is inserted into the installation groove (422) and connected by glue.
4. A construction method for a slanted wooden component for repairing ancient buildings according to any one of claims 1-3, characterized in that, Includes the following steps: Step 1: Clean the rotten and damaged parts. Clean the damaged parts of the main body (3) to be repaired. Use a scraper to scrape off the rotten wood on the surface. After removing the paint from the surface around the rotten parts, use sandpaper to polish it. Then clean the rotten parts and cut an opening (31). Step 2, making materials. First, measure and record the data of the first filling groove (311) and the second filling groove (312) in the completed opening (31). Cut the old wood that can be reused after protective demolition on the building where the main body (3) is located into multiple first filling blocks (1) by hand sawing. Use new wood and cut the new wood into second filling blocks (2) that are compatible with the second filling groove (312). Step 3: Cut grooves and drill holes, and make connecting mechanism (4). Cut out first slot (11) and second slot (12) on first filling block (1), and make first insert (41) that fits the first slot (11) and second insert (42) that fits the second slot (12). Cut out third insert (43) using new wood, process third slot (21) on second filling block (2), and drill holes in first insert (41) to form injection hole (412). Step 4, material installation: First, fix the second filler block (2) to the second filler groove (312) with glue. Fix the two adjacent first filler blocks (1) to each other with glue. Insert the second insert (42) into the second slot (12) and make the third insert (43) completely located in the second slot (12). Insert the first filler block (1) into the first filler groove (311). Push the first insert (41) into the first slot (11) and then inject glue into the glue injection space (44) through the injection hole (412). After the glue cools down, the installation is completed. Step 5: Restore the exterior finish. Based on the original exterior finish of the main body (3) to be repaired, select clear varnish or mixed varnish for one base coat and two top coats to make the style of the wooden components consistent with the original finish style, so as to restore the old as before.
5. The construction method for the obliquely inserted wooden components used in the repair of ancient buildings according to claim 4, characterized in that, In step one, a flat chisel and a wooden hammer are used to process the first filling groove (311), and then the second filling groove (312) with oblique insertion openings is processed on both sides of the first filling groove (311).
6. The construction method for the obliquely inserted wooden components used in the repair of ancient buildings according to claim 4, characterized in that, In step three, the shape of the first slot (11) and the second slot (12) is first outlined on the first filling block (1) using an ink pen. Then, the shape is processed by using a flat chisel and a wooden hammer. A hand saw is used to make the first bevel (411) on the first insert block (41) and the second bevel (421) on the second insert block (42).