Reinforcing protection device for historic building repair
By installing a tightening piece in the space before the clamp fits, the problems of difficulty in fastening wooden load-bearing columns with clamps and insufficient fastening force are solved, a more efficient fastening effect is achieved, and the construction difficulty and dependence on experience are reduced.
Patent Information
- Application Number
- CN202422665189.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-01
AI Technical Summary
In the existing technology, it is difficult to fasten wooden load-bearing columns with clamps, the fastening force is insufficient, and it is highly dependent on the experience of the construction workers, which makes it difficult to meet the repair needs of wooden load-bearing columns with different diameters.
Install tightening parts to increase the tightening force in the space before the clamp is fitted, such as non-rigid geometric structures such as parallelogram prisms, elliptical columns or curved plates. By compressing and then expanding laterally, the tightening range of the clamp is increased, reducing the difficulty of construction.
The use of tightening parts reduces the construction difficulty, increases the fastening force, adapts to the repair of wooden load-bearing columns with different diameters, and reduces the dependence on the experience of construction workers.
Smart Images
Figure CN223387021U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building restoration, and in particular relates to a reinforcement and protection device for restoring ancient buildings. Background Art
[0002] In ancient buildings, wooden load-bearing columns often fall into disrepair after years of wear and tear, so clamps and other fasteners are generally used to fasten wooden load-bearing columns. From the perspective of structural stability, they can effectively prevent the columns from cracking and deformation caused by long-term bearing of the building weight, the influence of the natural environment and external force impacts. They constrain the columns through uniform clamping force to prevent crack expansion, while improving the bearing capacity of the columns, dispersing stress and ensuring the safety of the building structure. Secondly, they are outstanding in delaying the aging and decay of wood, reducing the contact of the columns with external moisture and air, reducing the risk of wood being damp and corroded by microorganisms, maintaining the internal stress balance of the wood and extending the service life of the wood. In addition, in order to maintain the overall appearance and style of the building, keep the original shape and size of the columns, and ensure the consistency of the overall style of the building, clamps and other fasteners are generally preferred as repair tools.
[0003] When reinforcing and repairing, it is first necessary to cut the metal iron sheet for making the clamp according to the diameter of the wooden load-bearing column, and determine the position of the folded edge and the length L of the folded edge according to the diameter change of the wooden load-bearing column before and after the repair. The angle α between the folded edge and the clamp cannot be greater than 90 degrees, otherwise the two folded edges cannot be buckled with each other, and the clamp cannot be tightened by tapping the folded edge; on the basis of a fixed folded edge length L, if the angle α between the folded edge and the clamp is small, although it is conducive to tightening the clamp by tapping the folded edge, the range of change of the clamp tightening is small, which is difficult to meet the purpose of repairing the wooden load-bearing column. In other words, since the diameter of the wooden load-bearing column will change before and after the repair, if the range of change of the clamp tightening is small, it cannot provide sufficient fastening force; of course, if the angle α between the folded edge and the clamp is too small, it cannot be buckled;
[0004] When repairing a wooden load-bearing column with a clamp, it is necessary to determine the appropriate folding length L according to the change in the diameter of the wooden load-bearing column. On the basis of ensuring that the two folding edges can be buckled together, the longer the folding length L, the greater the range of change in the tightening of the clamp, and vice versa. The longer the folding length L, the greater the angle α between the folding edge and the clamp must be, otherwise the buckling cannot be completed. Therefore, the repair workers need to have a high level of construction experience and the construction is more difficult. Utility Model Content
[0005] In order to solve the problems raised in the above background technology, the utility model provides a reinforcement and protection device for ancient building restoration, which has the characteristic of reducing the construction difficulty.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforcement and protection device for repairing ancient buildings, comprising a clamp for reinforcing a wooden load-bearing column, the clamp having two folded edges for buckling with each other, and having a front fitting space when the two folded edges are in a buckled state and not fastened to each other, and a tightening member for increasing the tightening force of the clamp is installed in the front fitting space of the clamp.
[0007] As a preferred reinforcement and protection device for ancient building restoration of the present invention, the cross section of the tightening member is a non-rigid geometric structure for generating lateral expansion under compression.
[0008] As a preferred reinforcement and protection device for repairing ancient buildings of the present invention, a pad is provided between the junction of the two folded edges and the outer surface of the wooden load-bearing column.
[0009] As a preferred reinforcement and protection device for ancient building restoration of the utility model, the tightening member is a parallelogram prism.
[0010] As a preferred reinforcement and protection device for ancient building restoration of the utility model, the tightening member is an elliptical column.
[0011] As a preferred reinforcement and protection device for ancient building restoration of the utility model, the tightening member is an arc-shaped plate.
[0012] Compared with the prior art, the beneficial effect of the present invention is that by installing a tightening member in the space before the clamp is fitted to increase the clamp's tightening force, the construction difficulty of traditionally fastening wooden load-bearing columns with clamps can be reduced, and the tightening force can be increased. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0014] Figure 1 This is a schematic diagram of the utility model before the clamp is matched with the wooden load-bearing column;
[0015] Figure 2 This is a schematic diagram of the buckling structure of a conventional clamp of the utility model;
[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at A;
[0017] Figure 4 This is a schematic diagram of the installation of the parallelogram prism of the utility model;
[0018] Figure 5 This is a schematic diagram of the installation of the elliptical column of the utility model;
[0019] Figure 6 This is a schematic diagram of the installation of the curved plate of the utility model;
[0020] Figure 7 This is a schematic diagram of the buckling steps of the conventional clamp of the utility model;
[0021] In the picture:
[0022] 1. Wooden load-bearing columns;
[0023] 2. Clamp; 21. Space before fitting; 22. Pad;
[0024] 3. Folded edge; 4. Parallelogram prism; 5. Elliptical column; 6. Curved plate. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] like Figure 1-Figure 7 As shown:
[0027] A reinforcement and protection device for repairing ancient buildings includes a clamp 2 for reinforcing a wooden load-bearing column 1. The clamp 2 has two folded edges 3 for interlocking with each other. When the two folded edges 3 are in the interlocking state and not fastened to each other, there is a front fitting space 21. A tightening member that increases the tightening force of the clamp 2 is installed in the front fitting space 21 of the clamp 2.
[0028] In an alternative embodiment, the cross-section of the tightening member is a non-rigid geometry configured to expand laterally under compression.
[0029] In this embodiment: Figure 3As shown, when reinforcing and repairing, it is first necessary to cut the metal iron sheet for making the clamp 2 according to the diameter of the wooden load-bearing column 1, and determine the position of the folded edge 3 and the length L of the folded edge 3 according to the diameter change of the wooden load-bearing column 1 before and after repair. The angle α between the folded edge 3 and the clamp 2 cannot be greater than 90 degrees, otherwise the two folded edges 3 cannot be buckled with each other, and the clamp 2 cannot be tightened by knocking the folded edge 3; on the basis of a fixed length L of the folded edge 3, if the angle α between the folded edge 3 and the clamp 2 is small, although it is conducive to tightening the clamp 2 by knocking the folded edge 3, the tightening range of the clamp 2 is small, which is difficult to meet the purpose of repairing the wooden load-bearing column 1. That is to say, since the diameter of the wooden load-bearing column 1 before and after repair will change, if the tightening range of the clamp 2 is small, it cannot provide sufficient tightening force; of course, if the angle α between the folded edge 3 and the clamp 2 is too small, it cannot be buckled;
[0030] When the two fold edges 3 are fastened to each other, the length L of the fold edge 3 needs to be determined according to the change in the diameter of the wooden load-bearing column 1. On the basis of ensuring that the two fold edges 3 can be buckled together, the longer the length L of the fold edge 3 is, the greater the range of tightening of the clamp 2 is, and vice versa. This is because when the two fold edges 3 are buckled together, hammering the fold edge 3 can make the two fold edges 3 bear against each other; assuming that the angle α between the fold edge 3 and the clamp 2 is 85 degrees at this time, and the distance between the two fold edges 3 and the clamp 2 is X, after the fold edge 3 is hammered, the fold edge 3 will fit the outer surface of the clamp 2, thereby tightening the clamp 2. At this time, the distance between the two fold edges 3 and the clamp 2 is greater than X; but the longer the length L of the fold edge 3 is, the larger the angle α between the fold edge 3 and the clamp 2 must be (this is because the axis of the wooden load-bearing column 1 is fixed), otherwise the buckling cannot be completed. Therefore, the repair worker needs to have high construction experience and the construction difficulty is relatively large;
[0031] By placing a tightening member in the space 21 before fitting, the tightening range of the clamp 2 can be increased when the length L of the fold 3 is set shorter. On the basis of reducing the accuracy of determining the length L of the fold 3, the tightening range of the clamp 2 can still be increased, reducing the construction difficulty. Figure 7 As shown in the figure, the process of the clamp 2 being fastened by the folding edge 3 is shown, and the fastening is gradually completed in the order of top, middle and bottom. Figure 7 As shown in the upper middle figure, two folding edges 3 are required to complete the buckling. The lower folding edge 3 must be lower than the upper folding edge 3. In order to complete this step, the circumference of the clamp 2 must be greater than the circumference of the wooden load-bearing column 1, as shown in the figure below. Figure 7As shown in the middle figure, the figure shows the structure after the two folded edges 3 are buckled together. Since the circumference of the clamp 2 must be greater than the circumference of the wooden load-bearing column 1, the clamp 2 cannot completely fit the outer surface of the wooden load-bearing column 1 after the two folded edges 3 are buckled together. Therefore, after the clamp 2 and the wooden load-bearing column 1 are completely fitted together, the distance between the two folded edges 3 will increase (as shown in the figure). Figure 7 As shown in the lower figure), the gap of the space 21 before fitting will increase. At this time, a tightening piece with the same length as the maximum length of the space is inserted into the space 21 before fitting, and then the folded edge 3 is tightened with a hammer according to the original process, thereby tightening the clamp 2.
[0032] In an optional embodiment, a pad 22 is provided between the junction of the two folded edges 3 and the outer surface of the wooden load-bearing column 1 .
[0033] In this embodiment: In order to damage the outer surface of the wooden load-bearing column 1 when hitting the folded edges 3, a pad 22 can be placed between the junction of the two folded edges 3 and the outer surface of the wooden load-bearing column 1, so as to prevent the corner of the clamp 2 and the folded edges 3 from damaging the outer surface of the wooden load-bearing column 1 when the clamp 2 is tightened.
[0034] In an optional embodiment, the tightening member is a parallelogram prism 4. After being flattened, the parallelogram prism 4 is compressed to produce lateral expansion, so that the flattened parallelogram prism 4 presses against the corners between the two folded edges 3 and the clamp 2, so that the distance between the two corners is further increased, thereby achieving further tightening of the clamp 2.
[0035] In an optional embodiment, the tightening member is an elliptical column 5. After being flattened, the elliptical column 5 is compressed and expands laterally, so that the flattened elliptical column 5 presses against the corners between the two folded edges 3 and the clamp 2, thereby further increasing the distance between the two corners and achieving further tightening of the clamp 2.
[0036] In an optional embodiment, the tightening member is an arc-shaped plate 6. After being flattened, the arc-shaped plate 6 expands laterally, so that the flattened arc-shaped plate 6 presses against the corners between the two folded edges 3 and the clamp 2, thereby further increasing the distance between the two corners and achieving further tightening of the clamp 2.
[0037] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A reinforcement and protection device for repairing ancient buildings, comprising a clamp (2) for reinforcing a wooden load-bearing column (1), the clamp (2) having two folded edges (3) for interlocking, characterized in that: When the two folded edges (3) are in a buckled state and not fastened to each other, a front fitting space (21) is provided, and a tightening member for increasing the fastening force of the clamp (2) is installed at the front fitting space (21) of the clamp (2).
2. The reinforcement and protection device for ancient building restoration according to claim 1, characterized in that: The cross-section of the tightening member is a non-rigid geometric structure for generating lateral expansion under compression.
3. The reinforcement and protection device for ancient building restoration according to claim 1, characterized in that: A pad (22) is provided between the junction of the two folded edges (3) and the outer surface of the wooden load-bearing column (1).
4. The ancient building restoration reinforcement and protection device according to any one of claims 1 to 3, characterized in that: The tightening member is a parallelogram prism (4).
5. The ancient building restoration reinforcement and protection device according to any one of claims 1 to 3, characterized in that: The tightening member is an elliptical column (5).
6. The ancient building restoration reinforcement and protection device according to any one of claims 1 to 3, characterized in that: The tightening member is an arc-shaped plate (6).