Angle and height accurate adjustment-based pseudo-classic architecture wood rafter and construction method thereof
By using a combination of upper and lower flat steel bars and bolts, along with wooden blocks, the angle and height of the wooden rafters can be precisely adjusted. This solves the problems of cumbersome adjustments and difficulty in achieving precision in traditional construction methods, thus improving the construction efficiency and quality of antique-style buildings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE SECOND CONSTR OF CHINA CONSTR EIGHTH ENG DIV
- Filing Date
- 2026-03-17
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional timber rafter installation techniques are cumbersome to adjust, difficult to meet the precision requirements of antique-style buildings, and difficult to adjust later.
The construction method employs a combination of upper and lower flat steel bars and bolts, along with wooden blocks. Through the cooperation of the flat steel bars and nuts, the angle and height of the wooden rafters can be precisely adjusted, and professional measuring tools are used for real-time monitoring and adjustment.
It significantly improves construction efficiency, reduces time and labor costs, ensures the accuracy of timber rafter installation, adapts to various complex roof structures, and has good repeatability and maintainability.
Smart Images
Figure CN122013945A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building construction technology, specifically to an antique-style wooden rafter based on precise adjustment of angle and height, and its construction method. Background Technology
[0002] In the field of antique-style architecture, timber rafters, as a crucial structural component of the roof, play a decisive role in the overall aesthetics and waterproofing performance of the building. However, traditional timber rafter installation techniques have many shortcomings. Some construction methods rely on complex mortise and tenon joints for fixing, which, while providing high stability, involves an extremely cumbersome adjustment process. This not only requires a significant investment of manpower and time but also makes subsequent adjustments extremely difficult once installed. Other methods use simple supports for temporary fixing, which makes the timber rafters prone to displacement during construction, leading to deviations in angle and height, making it difficult to meet the stringent precision requirements for timber rafter installation in antique-style architecture.
[0003] Therefore, it is urgent to develop a construction method that can achieve precise adjustment of the angle and height of the wooden rafters and is easy to operate. Summary of the Invention
[0004] The purpose of this invention is to provide an antique-style wooden rafter based on precise adjustment of angle and height, and its construction method, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an antique-style wooden rafter based on precise adjustment of angle and height, comprising a wooden rafter installed on the top of the roof of an antique-style building, with an eave above the wooden rafter. A pre-embedded mounting plate is embedded in the top of the roof of the antique-style building, and screws are fixed to the surface of the pre-embedded mounting plate. A wooden pad is laid on top of the pre-embedded mounting plate, and two flat steel bars are sleeved on the rod of the pre-embedded mounting plate. The wooden rafter is clamped between the two flat steel bars, and two nuts are screwed onto the rod of the wooden pad, with the two flat steel bars located between the two nuts.
[0006] Preferably, the surface of the pre-embedded mounting plate is fixed with two pre-embedded hanging plates. The pre-embedded hanging plates have a "J"-shaped plate structure, with the bent parts of the two pre-embedded hanging plates facing each other, and the pre-embedded hanging plates are pre-embedded in the top of the roof of the antique building.
[0007] Preferably, the surface of the flat steel has a perforation, the screw passes through the wooden pad, and the wooden pad is clamped between the pre-embedded mounting plate and the flat steel.
[0008] Preferably, two washers are fitted on the rod body of the screw, with each washer corresponding to a nut, and the washer is clamped between the nut and the flat steel.
[0009] Preferably, the nut has an installation groove on the side away from the washer. The installation groove is annular and has multiple insertion ports on its inner ring surface. Clamping blocks are inserted into the insertion ports. The clamping blocks have an inclined surface at one end extending into the installation groove. A push ring is inserted into the installation groove and pushes the clamping blocks to clamp the screw.
[0010] Preferably, the inner ring surface of the nut has an inner ring groove, and a rubber ring is fixed inside the inner ring groove. The height of the rubber ring is greater than the height of the insertion port. The other end of the clamping block is fixed to the outer ring surface of the rubber ring. After the push ring pushes the clamping block, the slot clamps the clamping block and the screw, causing elastic deformation.
[0011] Preferably, the outer wall of the nut has two symmetrically distributed slots, and the surface of the push ring is symmetrically fixed with two elastic hanging pieces. The elastic hanging pieces have an "L" shaped plate structure. A retaining strip is fixed to the end of the elastic hanging piece away from the push ring. After the push ring is inserted into the mounting groove and one end of the elastic hanging piece abuts against the surface of the nut, the retaining strip is inserted into the slot. The retaining strip is a right-angled trapezoidal strip, and a paddle is fixed to one end of the elastic hanging piece.
[0012] A construction method for antique-style wooden rafters based on precise adjustment of angle and height includes the following steps: Construction preparation: Carefully prepare wooden rafters that meet the design dimensions, flat steel customized according to the dimensions of the wooden rafters and the installation location, suitable screws, and wooden blocks; Install a flat steel bar on the lower side: On the base structure of the antique-style building roof, accurately mark the installation points of the wooden rafters, place a flat steel bar on the lower side at the corresponding installation point, making its length direction perpendicular to the length direction of the wooden rafters, and use nuts and screws to initially fix it, but do not tighten it, so that the position can be adjusted flexibly later. Place wooden blocks: Based on the designed height of the wooden rafters, place wooden blocks on top of a flat steel bar on the lower side. The thickness of the wooden blocks is selected according to the actual adjustment needs. The material must have sufficient strength and stability to effectively support the wooden rafters and withstand various loads during construction. Install the wooden rafters: Place the wooden rafters steadily on the wooden blocks, ensuring that the bottom of the rafters is fully in contact with the wooden blocks, and that one end of the rafters is strictly aligned with the pre-marked position to ensure that the installation position is accurate; Install another flat steel on the upper side: Place another flat steel on the upper side above the wooden rafter, corresponding to the one on the lower side. To prevent the other flat steel on the upper side from damaging the wooden rafter, cushioning material or pads can be placed between the two as needed. Initial fixing: Use two nuts to initially connect the upper and lower flat steels. At this time, the nuts should not be tightened too much, so that the wooden rafters retain a certain amount of room for movement between the upper and lower flat steels, creating conditions for subsequent angle and height adjustments; Angle adjustment: Based on the design requirements for the rafter angle, the angle is adjusted by prying one end of the rafter so that it rotates around the contact point between a flat steel bar and a wooden pad on the lower side. During the adjustment process, professional angle measuring tools such as a theodolite or protractor are used to monitor the angle change in real time until the design requirements are met. Then, the bolts are tightened slightly to temporarily fix the angle. Height Adjustment: If further adjustment of the rafter height is required, it can be achieved by increasing or decreasing the number of wooden blocks or replacing them with wooden blocks of different thicknesses. When adjusting the height, closely observe whether the angle of the rafter changes. If there is a change, the angle needs to be finely adjusted in time. After the adjustment is completed, tighten the nuts completely to firmly fix the rafter at the set angle and height position with the two flat steel bars. Repeat the above steps to complete the installation and angle and height adjustment of the other rafters until the installation of all the roof rafters is completed.
[0013] Compared with the prior art, the beneficial effects of the present invention are: The present invention proposes an antique-style wooden rafter and its construction method based on precise adjustment of angle and height. With the help of the combination of upper and lower flat steel and bolts and the use of wooden blocks, construction workers can conveniently and quickly adjust the angle and height of the wooden rafter, which greatly improves construction efficiency and significantly reduces construction time and labor costs.
[0014] During the adjustment process, real-time monitoring using professional measuring tools ensures precise achievement of design requirements, effectively guaranteeing the installation accuracy of the antique-style wooden rafters and comprehensively improving the overall quality of the building. This construction method is applicable to the installation of various types and specifications of antique-style wooden rafters, and has good adaptability to various complex roof structures and design requirements. The thickness and quantity of wooden pads and the size of the flat steel can be flexibly adjusted according to actual conditions. If problems are found with the angle or height of the wooden rafters during subsequent construction or use, the bolts can be loosened again for adjustment, demonstrating good repeatability and maintainability. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Schematic diagram of a local structure in the middle; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point AA; Figure 4 This is a schematic diagram of the pre-embedded mounting plate and screw connection structure of the present invention; Figure 5 for Figure 4 Structural cross-section view at point BB; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point C; Figure 7 This is a schematic diagram of the connection structure between the push ring and the elastic hanger of the present invention; Figure 8 This is a schematic diagram of the nut structure of the present invention.
[0016] In the diagram: 1. Antique-style building roof; 101. Wooden rafters; 102. Wooden pads; 103. Eaves; 2. Embedded mounting plate; 201. Embedded hanging plate; 202. Screw; 3. Flat steel; 301. Through hole; 4. Nut; 401. Washer; 402. Mounting groove; 403. Inner ring groove; 404. Rubber ring; 405. Clamping block; 406. Push ring; 407. Slot; 5. Elastic hanging piece; 501. Clip; 502. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit 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.
[0018] Please see Figures 1 to 8 This invention provides a technical solution: an antique-style wooden rafter based on precise angle and height adjustment, comprising a wooden rafter 101, which is installed on the top of an antique-style building roof 1. An eave 103 is provided above the wooden rafter 101. A pre-embedded mounting plate 2 is embedded in the top of the antique-style building roof 1. Two pre-embedded hanging plates 201 are fixed to the surface of the pre-embedded mounting plate 2. The pre-embedded hanging plates 201 have a "J"-shaped plate structure, with the bent portions of the two pre-embedded hanging plates 201 facing each other. The pre-embedded hanging plates 201 are embedded in the top of the antique-style building roof 1. A screw 202 is fixed to the surface of the pre-embedded mounting plate 2. A wooden pad 102 is laid on top of the pre-embedded mounting plate 2. Two flat steel bars 3 are fitted on the rod of the pre-embedded mounting plate 2. A wooden rafter 101 is clamped between the two flat steel bars 3. A through hole 301 is opened on the surface of the flat steel bar 3. A screw rod 202 passes through the wooden pad 102. The wooden pad 102 is clamped between the pre-embedded mounting plate 2 and a flat steel bar 3. Two nuts 4 are screwed onto the rod of the wooden pad 102. The two flat steel bars 3 are located between the two nuts 4. Two washers 401 are fitted onto the rod of the screw rod 202. The washers 401 correspond one-to-one with the nuts 4. The washers 401 are clamped between the nuts 4 and the flat steel bars 3.
[0019] Carefully prepare wooden rafters 101 that conform to the design dimensions, flat steel 3 customized according to the dimensions and installation position of the wooden rafters 101, suitable screws 202, and wooden blocks 102; on the base structure of the antique building roof 1, accurately mark the installation points of the wooden rafters 101, place one of the flat steel 3 at the corresponding installation point, making its length direction perpendicular to the length direction of the wooden rafters 101, and use nuts 4 in conjunction with screws 202 for initial fixation, but do not tighten them to allow for flexible adjustment of the position later; according to the design height of the wooden rafters 101, place wooden blocks 102 on top of one of the flat steel 3 on the lower side, and... The thickness of the pad 102 is selected according to the actual adjustment requirements. Its material must have sufficient strength and stability to effectively support the rafters 101 and withstand various loads during construction. Place the rafters 101 stably on the pads 102, ensuring that the bottom of the rafters 101 is fully in contact with the pads 102, and that one end of the rafters 101 is strictly aligned with the pre-marked position to ensure accurate installation. Place another flat steel bar 3 on the upper side above the rafters 101, corresponding to the lower flat steel bar 3. To prevent the upper flat steel bar 3 from damaging the rafters, cushioning material can be placed between the two as needed. Use material or shims 401; initially connect the upper and lower flat steels 3 using two nuts 4. At this point, the nuts 4 should not be tightened too much, allowing the wooden rafter 101 some room to move between the two flat steels 3, creating conditions for subsequent angle and height adjustments; according to the designed angle of the wooden rafter 101, pry one end of the rafter to rotate it around the contact point between the lower flat steel 3 and the wooden shim 102 to achieve angle adjustment; during the adjustment process, use professional angle measuring tools such as a theodolite or protractor to monitor the angle change in real time until the design requirements are met, then slightly tighten the bolts. The angle is temporarily fixed. If further adjustment of the height of the rafters 101 is required, it can be achieved by increasing or decreasing the number of wooden blocks 102 or replacing them with wooden blocks 102 of different thicknesses. When adjusting the height, closely observe whether the angle of the rafters 101 changes. If there is a change, the angle needs to be finely adjusted in time. After the adjustment is completed, tighten the nuts 4 completely to firmly fix the rafters 101 at the set angle and height position with the two flat steels 3. Follow the above steps to complete the installation and angle and height adjustment of other rafters 101 in sequence until the installation of all the rafters 101 on the roof is completed.
[0020] To reinforce the connection between nut 4 and screw 202, the following was proposed: A mounting groove 402 is provided on the side of the nut 4 away from the washer 401. The mounting groove 402 is an annular groove. Multiple insertion ports are provided on the inner annular surface of the mounting groove 402. Clamping blocks 405 are inserted into the insertion ports. One end of the clamping block 405 extending into the mounting groove 402 has a bevel. A push ring 406 is inserted into the mounting groove 402. The push ring 406 pushes the clamping blocks 405 to clamp the screw 202. An inner annular groove 403 is provided on the inner annular surface of the nut 4. A rubber ring 404 is fixed inside the inner annular groove 403. The height of the rubber ring 404 is greater than the height of the insertion ports. The other end of the clamping block 405 is fixed to the outer annular surface of the rubber ring 404. After the push ring 406 pushes the clamping block 405, the slot 407 clamps between the clamping block 405 and the screw 202 and undergoes elastic deformation. Two symmetrically distributed slots 407 are opened on the outer wall of the nut 4. Two elastic hanging pieces 5 are symmetrically fixed on the surface of the push ring 406. The elastic hanging pieces 5 have an "L" shaped plate structure. A retaining strip 501 is fixed at the end of the elastic hanging piece 5 away from the push ring 406. After the push ring 406 is inserted into the mounting groove 402 and one end of the elastic hanging piece 5 abuts against the surface of the nut 4, the retaining strip 501 is inserted into the slot 407. The retaining strip 501 has a right-angled trapezoidal strip. A lever 502 is fixed at one end of the elastic hanging piece 5.
[0021] After the nut 4 is tightened on the screw 202, the push ring 406 is pushed into the mounting groove 402. The push ring 406 can be struck with a hammer. During the push ring 406 pushes multiple clamping blocks 405 into the socket, and the stretched rubber ring 404 is deformed and clamped on the surface of the screw 202. In this way, an anti-disengagement locking position is formed between the nut 4 and the screw 202, which strengthens the connection between the nut 4 and the screw 202. At the same time, the locking strip 501 is inserted into the locking groove 407, and the push ring 406 is pulled by the elastic hanging piece 5 to prevent the push ring 406 from falling off the mounting groove 402, so that the clamping block 405 stably clamps the screw 202.
[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An antique-style wooden rafter based on precise angle and height adjustment, comprising a wooden rafter (101), the wooden rafter (101) being installed on the top of the roof (1) of an antique-style building, and an eave (103) being provided above the wooden rafter (101), characterized in that: The top of the antique building roof (1) is pre-embedded with a pre-embedded installation plate (2), and a screw rod (202) is fixed on the surface of the pre-embedded installation plate (2). A wooden pad (102) is laid on the top of the pre-embedded installation plate (2). Two flat steels (3) are sleeved on the rod of the pre-embedded installation plate (2). The wooden rafter (101) is clamped between the two flat steels (3). Two nuts (4) are screwed onto the rod of the wooden pad (102). The two flat steels (3) are located between the two nuts (4).
2. The antique-style wooden rafter based on precise angle and height adjustment according to claim 1, characterized in that: The surface of the pre-embedded mounting plate (2) is fixed with two pre-embedded hanging plates (201). The pre-embedded hanging plates (201) are in the shape of a "J" plate. The bent parts of the two pre-embedded hanging plates (201) are opposite each other, and the pre-embedded hanging plates (201) are pre-embedded on the top of the roof (1) of the antique building.
3. The antique-style wooden rafter based on precise angle and height adjustment according to claim 1, characterized in that: The surface of the flat steel (3) is provided with a perforation (301), and the screw (202) passes through the wooden pad (102). The wooden pad (102) is clamped between the pre-embedded mounting plate (2) and a flat steel (3).
4. The antique-style wooden rafter based on precise angle and height adjustment according to claim 1, characterized in that: Two washers (401) are fitted on the rod body of the screw (202). The washers (401) correspond one-to-one with the nuts (4). The washers (401) are clamped between the nuts (4) and the flat steel (3).
5. The antique-style wooden rafter based on precise angle and height adjustment according to claim 4, characterized in that: The nut (4) has an installation groove (402) on the side away from the washer (401). The installation groove (402) is an annular groove. Multiple insertion ports are provided on the inner annular surface of the installation groove (402). A clamping block (405) is inserted into the insertion port. The end of the clamping block (405) extending into the installation groove (402) has a bevel. A push ring (406) is inserted into the installation groove (402). The push ring (406) pushes the clamping block (405) to clamp the screw (202).
6. The antique-style wooden rafter based on precise angle and height adjustment according to claim 5, characterized in that: The inner ring surface of the nut (4) is provided with an inner ring groove (403), and a rubber ring (404) is fixed inside the inner ring groove (403). The height of the rubber ring (404) is greater than the height of the insertion. The other end of the clamping block (405) is fixed on the outer ring surface of the rubber ring (404). After the push ring (406) pushes the clamping block (405), the slot (407) clamps between the clamping block (405) and the screw (202) and undergoes elastic deformation.
7. The antique-style wooden rafter based on precise angle and height adjustment according to claim 5, characterized in that: The outer wall of the nut (4) has two symmetrically distributed slots (407). The surface of the push ring (406) is symmetrically fixed with two elastic hanging pieces (5). The elastic hanging pieces (5) have an "L" shaped plate structure. The end of the elastic hanging piece (5) away from the push ring (406) is fixed with a retaining strip (501). After the push ring (406) is inserted into the mounting groove (402) and one end of the elastic hanging piece (5) abuts against the surface of the nut (4), the retaining strip (501) is inserted into the slot (407). The retaining strip (501) has a right-angled trapezoidal strip. One end of the elastic hanging piece (5) is fixed with a paddle (502).
8. A construction method for antique-style wooden rafters based on precise angle and height adjustment, used for constructing the antique-style wooden rafters based on precise angle and height adjustment as described in any one of claims 1-7, characterized in that: The construction method includes the following steps: Construction preparation: Carefully prepare wooden rafters (101) that meet the design dimensions, flat steel (3) customized according to the dimensions of the wooden rafters (101) and the installation position, suitable screws (202), and wooden blocks (102). Install a flat steel bar (3) on the lower side: On the base structure of the roof (1) of the antique building, accurately mark the installation point of the wooden rafter (101), place a flat steel bar (3) on the lower side at the corresponding installation point, so that its length direction is perpendicular to the length direction of the wooden rafter (101), use a nut (4) in conjunction with a screw (202) for initial fixation, but do not tighten it, so that the position can be adjusted flexibly later; Place wooden blocks (102): According to the design height of the wooden rafters (101), place wooden blocks (102) on top of a flat steel (3) on the lower side. The thickness of the wooden blocks (102) is selected according to the actual adjustment needs. The material must have sufficient strength and stability to effectively support the wooden rafters (101) and withstand various loads during construction. Install the wooden rafters (101): Place the wooden rafters (101) stably on the wooden pads (102), ensuring that the bottom of the wooden rafters (101) is fully in contact with the wooden pads (102), and that one end of the wooden rafters (101) is strictly aligned with the pre-marked position to ensure that the installation position is accurate; Install another flat steel (3) on the upper side: Place another flat steel (3) on the upper side corresponding to the one flat steel (3) on the lower side above the wooden rafter (101). To prevent the other flat steel (3) on the upper side from damaging the wooden rafter, cushioning material or pads (401) can be placed between the two as needed. Preliminary fixing: Use two nuts (4) to initially connect the upper and lower flat steels (3). At this time, the nuts (4) should not be tightened too much, so that the wooden rafter (101) can have a certain amount of room for movement between the upper and lower flat steels (3), creating conditions for subsequent angle and height adjustment; Angle adjustment: According to the design requirements of the wooden rafter (101), the angle is adjusted by prying one end of the wooden rafter so that it rotates around the contact point between a flat steel (3) on the lower side and the wooden pad (102); during the adjustment process, the angle change is monitored in real time using professional angle measuring tools such as theodolites or protractors until the design requirements are met, and then the bolts are tightened slightly to temporarily fix the angle. Height adjustment: If further adjustment of the height of the wooden rafter (101) is required, it can be achieved by increasing or decreasing the number of wooden blocks (102) or replacing wooden blocks (102) of different thicknesses; when adjusting the height, closely observe whether the angle of the wooden rafter (101) changes. If there is a change, the angle needs to be finely adjusted in time; after the adjustment is completed, tighten the nut (4) completely so that the upper and lower flat steels (3) firmly fix the wooden rafter (101) at the set angle and height position; Repeated construction: Following the above steps, install the other rafters (101) and adjust their angles and heights in sequence until the installation of all the roof rafters (101) is completed.