Local jacking device for repairing a timber frame with fallen arch

Abstract

The utility model provides a kind of local jacking device of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear and tear of wear

Description

Technical Field

[0001] This utility model relates to a lifting device, specifically a partial lifting device for the dismantling and repair of a timber frame structure, belonging to the fields of urban renewal, cultural heritage building repair, and automated equipment manufacturing technology. Background Technology

[0002] The ancient buildings with wooden frames in Sichuan are renowned for their precise mortise and tenon joints and rigorous structure. Their earthquake-resistant characteristics, which prevent the walls from collapsing, demonstrate the wisdom of the craftsmen and make them a precious cultural heritage. During the restoration, the principles of "minimal intervention" and "restoring the old as it was" are strictly followed. Traditional techniques and original materials are given priority. Damaged wooden components are repaired and reinforced or replaced according to the original design, so as to preserve historical information to the greatest extent possible, extend the life of the ancient buildings, and pass on the skills.

[0003] In the fields of urban renewal and cultural heritage protection, the restoration and protection of ancient buildings with mortise and tenon timber frame structures, as important historical carriers, have always faced technical challenges. Traditional restoration methods rely heavily on manual operation, which has problems such as long construction cycles, high labor intensity, and difficulty in ensuring safety. Especially in the process of supporting beams and removing columns, the slightest carelessness may cause irreversible damage to the overall structure. With the development of building technology, the application of automated equipment in the restoration of ancient buildings has gradually gained attention. However, existing equipment is mostly designed for modern building structures and is difficult to directly adapt to the special structure of mortise and tenon timber frame structures and the requirements for cultural relic protection. To address these issues, we provide a partial jacking device for the restoration of mortise and tenon timber frame structures. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a partial lifting device for dismantling and repairing a timber frame structure in order to solve the above-mentioned problems, thereby addressing the issues of low efficiency, high safety risks, and potential damage to the building structure in existing repair methods.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: a partial lifting device for dismantling and repairing a mortise-and-tenon timber frame, comprising a foundation, a lifting mechanism above the foundation, the lifting mechanism comprising a mounting frame, a stiffening plate fixedly connected to the top surface of the mounting frame, a hydraulic cylinder fixedly connected to the inner wall of the mounting frame, and a crossbeam lifting support fixedly connected to the telescopic end of the hydraulic cylinder. The mounting frame enhances its overall rigidity through the stiffening plate, providing a stable and reliable working platform for the hydraulic cylinder.

[0008] Preferably, the inner wall of the stiffening plate is threaded with a clamping bolt, and one end of the clamping bolt is rotatably connected to a fixing clamp. The clamping bolt can precisely adjust the clamping force of the fixing clamp on the wooden column to ensure the structural stability during the jacking process.

[0009] Preferably, the inner wall of the fixing clamp is fixedly connected with a friction rubber pad, and the inner wall of the stiffening plate is threadedly connected with a fixing bolt. The friction rubber pad can effectively increase the friction with the surface of the wooden column and prevent damage to the wooden column during clamping.

[0010] Preferably, a bottom support is fixedly connected to the top surface of the foundation, and a supporting round steel pipe is fixedly connected to the top surface of the bottom support. The end of the supporting round steel pipe away from the bottom support is fixedly connected to a hydraulic cylinder. The bottom support and the supporting round steel pipe together form a force transmission path, effectively transferring the lifting load to the foundation.

[0011] Preferably, a hydraulic oil pump is fixedly connected to the outer surface of the hydraulic cylinder, and an oil supply pipeline is fixedly connected to the input end of the hydraulic oil pump. The hydraulic oil pump provides a stable and controllable pressure oil source for the hydraulic cylinder, thereby achieving precise adjustment of the lifting speed and force.

[0012] Preferably, a stone pier is fixedly connected to the top surface of the foundation, and a wooden column is fixedly connected to the top surface of the stone pier. The stone pier serves as the foundation of the ancient building, supporting the wooden column and evenly distributing the upper load to the foundation.

[0013] Preferably, a wooden beam is fixedly connected to the outer surface of the wooden column, and a contact pad adapted to the wooden beam is fixedly connected to the inner wall of the crossbeam lifting support. The crossbeam lifting support fits tightly against the bottom surface of the wooden beam through its contact pad, ensuring that the lifting force is effectively and evenly transmitted.

[0014] This utility model provides a partial jacking device for dismantling and repairing a timber frame structure, which has the following beneficial effects:

[0015] 1. The partial jacking device for dismantling and repairing this mortise-and-tenon timber frame integrates hydraulic cylinders and an intelligent monitoring system through the jacking mechanism, realizing real-time closed-loop control of the construction process. This design can accurately and synchronously lift the crossbeams and dynamically adjust the stress on the timber beams, thereby avoiding structural damage and construction accidents and significantly improving safety.

[0016] 2. The partial jacking device for the dismantling and repair of the mortise-and-tenon timber frame achieves precise force transmission and safe holding through the coordinated operation of the jacking mechanism, hydraulic cylinders and special clamps composed of friction rubber pads. This integrated design not only minimizes interference and damage to the original structure of the ancient building, but also significantly reduces manual operation through automated operation, effectively shortens the construction period and significantly improves the overall repair efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the lifting mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixing clamp of this utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the stiffening plate of this utility model.

[0021] [Explanation of Key Component Symbols]

[0022] 1. Foundation;

[0023] 2. Lifting mechanism; 201. Mounting frame; 202. Stiffening plate; 203. Hydraulic cylinder; 204. Crossbeam lifting support; 205. Clamping bolt; 206. Fixing clamp; 207. Friction rubber pad; 208. Fixing bolt; 209. Bottom support; 210. Supporting round steel pipe; 211. Hydraulic oil pump; 212. Oil pipeline;

[0024] 3. Stone piers; 4. Wooden pillars; 5. Wooden beams. Detailed Implementation

[0025] This utility model embodiment provides a partial lifting device for dismantling and repairing a mortise-and-tenon timber frame.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes a foundation 1, and a lifting mechanism 2 is installed above the foundation 1. The lifting mechanism 2 includes a mounting frame 201, a stiffening plate 202 is fixedly connected to the top surface of the mounting frame 201, a hydraulic cylinder 203 is fixedly connected to the inner wall of the mounting frame 201, and a crossbeam lifting support 204 is fixedly connected to the telescopic end of the hydraulic cylinder 203. The mounting frame 201 enhances its overall rigidity through the stiffening plate 202, providing a stable and reliable working platform for the hydraulic cylinder 203.

[0027] The inner wall of the stiffening plate 202 is threaded with a clamping bolt 205. One end of the clamping bolt 205 is rotatably connected to a fixing clamp 206. The clamping bolt 205 can precisely adjust the clamping force of the fixing clamp 206 on the wooden column 4 to ensure the structural stability during the jacking process. The fixing clamp 206 adopts a modular design and can be adapted and installed according to the wooden column 4 of different diameters.

[0028] The inner wall of the fixing clamp 206 is fixedly connected with a friction rubber pad 207, and the inner wall of the stiffening plate 202 is threadedly connected with a fixing bolt 208. The friction rubber pad 207 can effectively increase the friction with the surface of the wooden column 4 and prevent damage to the wooden column 4 during clamping. The fixing bolt 208 is used to auxiliaryly connect the stiffening plate 202 and the mounting frame 201 to further enhance the strength of the connection node.

[0029] A bottom support 209 is fixedly connected to the top surface of the foundation 1. A supporting round steel pipe 210 is fixedly connected to the top surface of the bottom support 209. The end of the supporting round steel pipe 210 away from the bottom support 209 is fixedly connected to the hydraulic cylinder 203. The bottom support 209 and the supporting round steel pipe 210 together form a force transmission path, effectively transmitting the lifting load to the foundation 1. The height of the supporting round steel pipe 210 can be adjusted to adapt to the different ground height requirements of different construction sites.

[0030] A hydraulic pump 211 is fixedly connected to the outer surface of the hydraulic cylinder 203. An oil pipeline 212 is fixedly connected to the input end of the hydraulic pump 211. The hydraulic pump 211 provides a stable and controllable pressure oil source for the hydraulic cylinder 203, enabling precise adjustment of the lifting speed and force. The oil pipeline 212 uses a high-pressure hose to ensure the reliability of power transmission between the hydraulic pump 211 and the hydraulic cylinder 203.

[0031] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4 Stone piers 3 are fixedly connected to the top surface of foundation 1, and wooden columns 4 are fixedly connected to the top surface of stone piers 3. Stone piers 3 serve as the foundation of ancient buildings, supporting wooden columns 4 and distributing the upper load evenly to foundation 1.

[0032] Wooden beams 5 are fixedly connected to the outer surface of wooden column 4. A contact pad that matches the wooden beam 5 is fixedly connected to the inner wall of the crossbeam lifting support 204. The crossbeam lifting support 204 fits tightly against the bottom surface of the wooden beam 5 through its contact pad, ensuring that the lifting force is effectively and evenly transmitted. The contact pad adopts a contoured curved surface design to adapt to the irregular shape of the wooden beam 5 and achieve non-destructive support.

[0033] The hydraulic cylinder 203 and hydraulic pump 211 in this application are common knowledge to those skilled in the art. They are conventional electrical devices that are widely used in the prior art and are extensively recorded in technical manuals and standard texts. Given their versatility and the full understanding of their structure, working principle and selection by those skilled in the art, this application will not elaborate on or limit the specific model or internal structural details of the motor itself, thereby emphasizing that it is not the innovation of this application.

[0034] The structural representations of the components shown in the accompanying drawings are intended to provide conceptual references. Their forms and interrelationships provide a basic framework for understanding the overall design intent. It is important to emphasize that these illustrations are not rigid templates for the final product. In the process of transforming the design into an actual product or its subsystem, in-depth and meticulous adaptive adjustments and optimizations must be made based on the specific constraints of the project. This mainly includes fully considering the core functional requirements of the specific application scenario, rigorously assessing the physical limitations of the actual assembly, and strictly referring to the current material properties, manufacturing process levels, and cost control requirements. Therefore, it is necessary to systematically review and revise the geometric parameters, key dimensions, and material specifications of the components to ensure that the parameters achieve an optimal balance between theoretical feasibility and engineering practicality.

[0035] In use, this invention involves: before operation, obtaining the precise dimensions, inclination, and relationship with surrounding components of the wooden column 4 through three-dimensional laser scanning; when the device is in place, transporting the mounting frame 201, stiffening plate 202, and supporting round steel pipe 210 to the side of the wooden column 4 and assembling them into a stable structure; installing a mechanical transmission module and a hydraulic control module on top of this structure, the latter including a hydraulic cylinder 203, a hydraulic pump 211, and an oil pipeline 212; then installing a special clamp consisting of a fixing clamp 206 and a crossbeam lifting support 204, with friction rubber pads 207 and contact bottom pads on the contact surface to ensure contact with the irregular surface of the wooden column 4 or wooden beam 5; and using a bottom support 209 to provide support. Simultaneously, laser positioning is arranged at key locations. Monitoring components such as displacement sensors and resistance strain gauges are used. After the operator sets the target lifting height, lifting speed, and safety threshold through the human-machine interface, the automatic mode is activated. The hydraulic oil pump 211 supplies oil to the hydraulic cylinder 203 through the oil pipeline 212, driving the piston rod to move. This lifts the wooden beam 5 through the crossbeam lifting support 204. The monitoring data is fed back to the control system in real time. The system dynamically adjusts each actuator through the control algorithm to ensure that each hydraulic cylinder 203 moves synchronously and is subjected to uniform force. Once an abnormality such as excessive strain or asynchronous displacement is detected, the system immediately and automatically stops the lifting and issues an alarm. The operation continues after the operator confirms. This device achieves safe and precise beam lifting and column removal operations through the coordinated work of various components.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A partial jacking device for dismantling and repairing a timber frame structure, comprising a foundation (1), characterized in that: A lifting mechanism (2) is provided above the foundation (1). The lifting mechanism (2) includes a mounting frame (201). A stiffening plate (202) is fixedly connected to the top surface of the mounting frame (201). A hydraulic cylinder (203) is fixedly connected to the inner wall of the mounting frame (201). A crossbeam lifting support (204) is fixedly connected to the telescopic end of the hydraulic cylinder (203).

2. The partial lifting device for dismantling and repairing a timber frame structure according to claim 1, characterized in that: The inner wall of the stiffening plate (202) is threaded with a clamping bolt (205), and one end of the clamping bolt (205) is rotatably connected to a fixing clamp (206).

3. A partial jacking device for dismantling and repairing a timber frame structure according to claim 2, characterized in that: The inner wall of the fixed clamp (206) is fixedly connected with a friction rubber pad (207), and the inner wall of the stiffening plate (202) is threadedly connected with a fixing bolt (208).

4. A partial lifting device for dismantling and repairing a timber frame structure according to claim 1, characterized in that: The top surface of the foundation (1) is fixedly connected to a bottom support (209), and the top surface of the bottom support (209) is fixedly connected to a supporting round steel pipe (210). The end of the supporting round steel pipe (210) away from the bottom support (209) is fixedly connected to a hydraulic cylinder (203).

5. A partial jacking device for dismantling and repairing a timber frame structure according to claim 1, characterized in that: A hydraulic pump (211) is fixedly connected to the outer surface of the hydraulic cylinder (203), and an oil pipeline (212) is fixedly connected to the input end of the hydraulic pump (211).

6. A partial jacking device for dismantling and repairing a timber frame structure according to claim 1, characterized in that: The top surface of the foundation (1) is fixedly connected to a stone pier (3), and the top surface of the stone pier (3) is fixedly connected to a wooden column (4).

7. A partial jacking device for dismantling and repairing a timber frame structure according to claim 6, characterized in that: The outer surface of the wooden column (4) is fixedly connected to a wooden beam (5), and the inner wall of the crossbeam support (204) is fixedly connected to a contact pad that matches the wooden beam (5).

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