General vibration monitoring sensor fixing device for ancient wood structure building

Abstract

The invention discloses a universal vibration monitoring sensor fixing device for a wood structure historic building, and belongs to the technical field of historic building monitoring equipment.The universal vibration monitoring sensor fixing device comprises hinge connecting assemblies, a hoop pressing block connecting assembly and a sensor mounting assembly, and the hinge connecting assemblies are connected to the two sides of the hoop pressing block connecting assembly; the sensor mounting assembly is arranged on the outer side of the clamp connecting assembly, the hinge connecting assembly comprises a plurality of detachable hinges, the clamp pressing block connecting assembly comprises a clamp pressing block and a two-dimensional code identifier, and the sensor mounting assembly comprises a foldable tray. The universal vibration monitoring sensor fixing device for the wood structure ancient building can be conveniently installed, is suitable for bearing columns of various sizes, and can also ensure that the sensor works stably.

Description

Technical Field

[0001] This invention relates to the field of ancient building monitoring equipment technology, and in particular to a universal vibration monitoring sensor fixing device for wooden ancient buildings. Background Technology

[0002] Wooden structures, as an important part of human historical and cultural heritage, possess extremely high historical, artistic, and scientific value. However, due to their age and the influence of environmental factors, their structural stability faces numerous challenges. Vibration monitoring is crucial for timely understanding the health status of wooden structures; by analyzing vibration data, the integrity and safety of the structure can be effectively assessed.

[0003] In vibration monitoring systems, sensor installation is a crucial step. Traditional fixing methods for the cylindrical load-bearing columns of ancient wooden buildings have many drawbacks. On the one hand, while methods like gluing can secure the sensors, they can cause irreversible damage to the precious wooden structure, destroying the original appearance and structural integrity of the ancient building. On the other hand, some existing clamps are difficult to adapt to load-bearing columns of different radii, the installation process is cumbersome and the fixing effect is poor, and during long-term monitoring, external factors can easily cause the sensors to loosen, affecting the accuracy and continuity of data acquisition. Summary of the Invention

[0004] The purpose of this invention is to provide a universal vibration monitoring sensor fixing device for ancient wooden buildings, which can be easily installed, adapt to load-bearing columns of various sizes, and ensure stable operation of the sensor.

[0005] To achieve the above objectives, the present invention provides a universal vibration monitoring sensor fixing device for ancient wooden buildings, including a hinge connection assembly, a clamp pressure block connection assembly, and a sensor mounting assembly. The hinge connection assembly is connected to both sides of the clamp pressure block connection assembly, and the sensor mounting assembly is disposed on the outside of the clamp connection assembly.

[0006] Preferably, the hinge connection assembly includes a plurality of detachable hinges, each detachable hinge including a fixed base and a movable arm.

[0007] Preferably, one end of the movable arm is connected to the fixed base, the fixed base is provided with 4-6 second positioning holes, and the fixed base is provided with two arc-shaped sliding grooves, which match the movable arm.

[0008] Furthermore, the end of the movable arm is provided with a positioning protrusion, which matches the second positioning hole, and the movable arm is made of high-strength aluminum alloy.

[0009] Preferably, the clamping block connecting assembly includes a clamping block and a QR code label. The clamping block has connecting ears at both ends, which are fixedly connected to the movable arm. The QR code label is located on the outside of the clamping block.

[0010] Preferably, a flexible pad is fixedly provided on the inner side of the clamping block. The flexible pad is specifically a non-woven anti-slip layer. The thickness of the clamping block is 2-4mm, and its material is high-strength aluminum alloy. The clamping block is arc-shaped and the curvature matches the flexible pad.

[0011] Preferably, the other end of the movable arm is fixed with a threaded rod, and the inner side of the connecting ear is provided with a threaded hole that matches the threaded rod. The movable arm and the connecting ear are fixedly connected by a stop washer and a nut. The number of movable arms is at least 6 to meet the requirements of 600mm wooden columns in ancient building wooden structures.

[0012] Preferably, the sensor mounting assembly includes a foldable tray, one side of which is connected to the outside of the clamping block, and the bottom of the foldable tray is connected to a diagonal support rod via a pin. The other end of the diagonal support rod is connected to a connecting seat, which is located at the bottom of the clamping block and is integrally formed with the clamping block.

[0013] Furthermore, the inclined support rod includes an outer sleeve, an inner sleeve, a positioning pin, and a disc spring; the inner wall of the outer sleeve is provided with an axial groove, the outer wall is provided with a scale, and 2-3 first positioning holes are provided; the outer wall of the inner sleeve is provided with a protrusion that matches the groove, and the protrusion can slide along the groove; the disc spring is sleeved on the outside of the inner sleeve, and its two ends abut against the end of the outer sleeve and the protrusion, respectively; the positioning pin is provided on the inner sleeve and matches the first positioning hole.

[0014] Preferably, the hinge connection assembly is made of stainless steel, and a grease sealing cavity is provided at the pin. The number of detachable hinges is 3-4, which are evenly distributed along the circumference of the clamp pressure block connection assembly, and the central angle between two adjacent detachable hinges is 90°-120°.

[0015] Preferably, the thickness of the clamping block is 2-4mm, and its material is high-strength aluminum alloy.

[0016] Preferably, the QR code is used to associate the device with its installation instructions, maintenance cycle, and compatible sensor model.

[0017] Preferably, the foldable tray is connected to the outside of the clamping block via a hinge, and the upper surface of the foldable tray is provided with a horizontal bubble.

[0018] Therefore, the present invention employs the above-mentioned universal vibration monitoring sensor fixing device for ancient wooden structures, and the technical effects are as follows:

[0019] Non-destructive installation and strong adaptability: The flexible padding layer avoids damage to the wooden load-bearing columns, and the hinge connection components can quickly adapt to load-bearing columns of different radii. It is suitable for load-bearing columns of various specifications of cylindrical wooden ancient buildings, which greatly improves the versatility of the fixing device.

[0020] Stable and reliable fixing effect: Through the synergistic action of hinges, clamp blocks and adjustable diagonal support rods, a stable mounting platform is provided for the sensor, effectively preventing the sensor from loosening due to external interference during long-term monitoring, and ensuring the accuracy and reliability of vibration data acquisition.

[0021] Convenient installation and maintenance: The components are connected in a detachable manner, making the installation process simple and quick. When the sensor needs to be maintained or replaced, the relevant components can be easily disassembled, making the operation convenient and reducing maintenance costs and difficulties.

[0022] Excellent environmental adaptability: The main components of the device are made of high-strength aluminum alloy and stainless steel, which have excellent rust and corrosion resistance and can work stably for a long time in various complex environments, ensuring the continuity of vibration monitoring of ancient wooden buildings.

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an embodiment of a universal vibration monitoring sensor fixing device for ancient wooden buildings according to the present invention;

[0025] Figure 2 This is a schematic diagram of a foldable tray, representing an embodiment of a universal vibration monitoring sensor fixing device for ancient wooden buildings according to the present invention.

[0026] Figure 3 This is a schematic diagram of the connection between the connecting ear and the movable arm in an embodiment of a universal vibration monitoring sensor fixing device for wooden ancient buildings according to the present invention.

[0027] Figure Labels

[0028] 1. Fixed base; 2. Movable arm; 3. Flexible pad; 4. Clamping block; 5. Connecting ear; 6. Foldable tray; 7. Horizontal bubble; 8. Inner sleeve; 9. Outer sleeve; 10. First positioning hole; 11. Connecting base; 12. Threaded rod; 13. Threaded hole; 14. Stop washer; 15. Nut; 16. Second positioning hole. Detailed Implementation

[0029] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "comprising" or "including," and similar terms used in this invention, mean that the element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Example 1

[0032] This invention provides a universal vibration monitoring sensor fixing device for ancient wooden buildings, the overall structure of which includes the following core components:

[0033] Hinged connection assembly: Enables adjustable connection between fixed base 1 and movable arm 2, providing multi-angle adjustment capability. At the same time, the fixed base 1 and movable arm 2 can achieve different arc lengths through arc-shaped sliding groove and second positioning hole 16, meeting the fixing needs of various wooden structures.

[0034] Clamping block connection assembly: Quick positioning and information association are achieved through clamping block 4 and QR code label;

[0035] Sensor mounting assembly: Includes a foldable tray 6 and an adjustable angled support rod, providing a stable mounting platform for the sensor.

[0036] 1. Hinge connection assembly

[0037] like Figure 1 As shown, its structure is configured with four detachable hinges, including four fixing seats 1, which are evenly distributed around the circumference of the clamping block 4 connecting assembly (the central angle between adjacent hinges is 120°). The hinge body is made of 304 stainless steel (corrosion resistance ≥A2-70 grade).

[0038] Each hinge includes a fixed base 1 and a movable arm 2. One end of the movable arm 2 is connected to the fixed base 1. The fixed base 1 is provided with four second positioning holes 16. The fixed base 1 is provided with two arc-shaped sliding grooves, which are respectively matched with the movable arms 2 on both sides of the fixed base 1. The end of the movable arm 2 is provided with a positioning protrusion, which matches the second positioning hole 16. Thus, the movable arm 2 slides in the arc-shaped sliding groove to realize a small range of change in the fixed radius of the fixing device.

[0039] The movable arm 2 is made of high-strength aluminum alloy, and there are at least 6 movable arms 2 to meet the requirements of 600mm wooden columns in ancient building wooden structures.

[0040] 2. Clamping block connection assembly

[0041] It includes a clamping block 4 and a QR code label, wherein the clamping block 4 is an arc-shaped aluminum alloy component, and its bottom is integrally formed with the connecting seat 11.

[0042] The clamping block 4 is provided with connecting ears 5 at both ends, such as Figure 3 As shown, one end of the movable arm 2 is fixed with a threaded rod 12, and the inner side of the connecting ear 5 is provided with a threaded hole 13 that matches the threaded rod 12. The movable arm 2 and the connecting ear 5 are fixedly connected by a stop washer 14 and a nut 15, thereby achieving a stable connection between the connecting ear 5 and the movable arm 2. At the same time, the other end of the movable arm 2 is hinged to the fixed seat 1 by a pin, so the connection angle of the movable arm 2 can be adjusted, thereby adapting to load-bearing columns of different sizes.

[0043] A flexible pad 3 is fixedly provided on the inner side of the clamping block 4. The flexible pad 3 is a 1mm thick non-woven anti-slip layer, thereby enhancing the friction between the fixing device and the wooden column.

[0044] The outer surface of clamp block 4 is embedded with a QR code (20×20mm), the storage device installation instructions (PDF format), maintenance cycle (it is recommended to check every 6 months) and the compatible sensor model (such as 941-B type horizontal vibration pickup, 941-V type vertical vibration pickup).

[0045] 3. Sensor mounting assembly

[0046] It includes a foldable tray 6 with an outer arc length of 200mm and an inner arc length of 150mm, made of aluminum alloy (with anodized surface treatment). The foldable tray 6 is connected to the outside of the clamping block 4 via a hinge, enabling it to be folded. At the same time, the foldable tray 6 can be unfolded to a horizontal position with the surface of the clamping block 4.

[0047] like Figure 2 As shown, the upper surface of the foldable tray 6 is provided with a level bubble 7, which is used to adjust the levelness of the tray. The bottom of the foldable tray 6 is connected to the inclined support rod by a pin, and the other end of the inclined support rod is connected to the connecting seat 11. The connecting seat 11 is located at the bottom of the clamping block 4 and is integrally formed with the clamping block 4.

[0048] The inclined support rod consists of an outer sleeve 9, an inner sleeve 8, a positioning pin, and a disc spring. The connection between the outer sleeve 9 and the inner sleeve 8 in the inclined support rod is similar to the connection between the fixed seat 1 and the movable arm 2 mentioned above. The axial length change is achieved between the outer sleeve 9 and the inner sleeve 8, while the arc length change is achieved between the fixed seat 1 and the movable arm 2.

[0049] The diagonal support rod is described in detail below:

[0050] Outer tube 9: 200mm in length, with an axial groove (3mm wide) on the inner wall, scale markings (1mm accuracy) on the outer wall, and three first positioning holes 10 (50mm apart) at the end.

[0051] Inner sleeve 8: 150mm in length, with outer wall protrusions that fit the sliding groove, allowing the length to be adjusted by sliding along the outer sleeve 9.

[0052] Disc spring: 5mm thick, provides 30N of restoring force after pre-compression, and abuts against the end face of the outer sleeve 9 and the protrusion.

[0053] Positioning pin: made of stainless steel, 4mm in diameter, inserted into the side hole of the inner sleeve 8 and then engaged with the first positioning hole 10 on the outer sleeve 9 for fixation.

[0054] The diagonal support rod is connected to the bottom of the foldable tray 6 via a pin, with an adjustment range of 0-50mm in height and an error of ≤±1mm.

[0055] The installation of this device consists of two steps: installation of the fixing device and installation of the sensor, as follows:

[0056] 1. Installation of fixing devices:

[0057] Select the appropriate number of fixing seats 1 and movable arms 2 according to the size of the load-bearing column to be fixed. When fixing, the connecting ear 5 and movable arm 2 can be fixedly connected by adjusting nut 15. At the same time, the flexible pad 3 inside the fixing seat 1 can be tightly attached to the surface of the load-bearing column. The thickness of the flexible pad 3 is 2mm. While ensuring a stable connection, it can avoid filtering out the vibration signal that needs to be monitored, and ensure that the QR code mark faces outward when fixing.

[0058] 2. Sensor installation:

[0059] Unfold the foldable tray 6 and adjust it to a horizontal position using the leveling bubble 7;

[0060] Adjust the length of the inclined support rod: slide the inner sleeve 8 to the desired height, insert the positioning pin to fix it, and use the disc spring to maintain stability;

[0061] The vibration sensor is fixed to the foldable tray 6 with bolts to ensure that the sensor and the support rod share the load.

[0062] This invention, by setting a flexible pad 3, ensures that the pressure applied to the surface of the wooden column is ≤0.5MPa, avoiding damage to the wood and enabling non-destructive installation; after salt spray testing, the aluminum alloy and stainless steel components showed no corrosion, demonstrating strong environmental adaptability; and under simulated vibration (frequency 5-50Hz, acceleration 5m / s²), the pressure applied to the wooden column surface is ≤0.5MPa, avoiding damage to the wood and enabling non-destructive installation; 2 Under these conditions, the sensor position offset is ≤0.1mm, the data acquisition error is <2%, and the overall stability is strong.

[0063] Therefore, the present invention adopts the above-mentioned universal vibration monitoring sensor fixing device for ancient wooden structures, which can be conveniently installed, adapt to various sizes of load-bearing columns, and ensure stable operation of the sensor, thus having significant technical advancement and practicality.

[0064] It is worth noting that all the contents not described in detail in this invention are existing technologies and are well known to those skilled in the art.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A universal vibration monitoring sensor fixing device for ancient wooden structures, characterized in that: It includes a hinge connection assembly, a clamp pressure block connection assembly, and a sensor mounting assembly. The hinge connection assembly is connected to both sides of the clamp pressure block connection assembly, and the sensor mounting assembly is located on the outside of the clamp connection assembly.

2. The universal vibration monitoring sensor fixing device for ancient wooden buildings according to claim 1, characterized in that: The hinge connection assembly includes multiple detachable hinges, each detachable hinge including a fixed base and a movable arm.

3. The universal vibration monitoring sensor fixing device for ancient wooden buildings according to claim 2, characterized in that: One end of the movable arm is connected to the fixed base, and the movable arm is made of high-strength aluminum alloy.

4. The universal vibration monitoring sensor fixing device for ancient wooden structures according to claim 3, characterized in that: The clamp block connection assembly includes a clamp block and a QR code label. The clamp block has connecting ears at both ends, which are fixedly connected to the movable arm. The QR code label is located on the outside of the clamp block.

5. The universal vibration monitoring sensor fixing device for ancient wooden buildings according to claim 4, characterized in that: A flexible pad is fixedly provided on the inner side of the clamping block. The flexible pad is specifically a non-woven anti-slip layer. The clamping block has a thickness of 2-4mm and is made of high-strength aluminum alloy. The clamping block is arc-shaped and the curvature matches the flexible pad.

6. A universal vibration monitoring sensor fixing device for ancient wooden structures according to claim 4, characterized in that: The other end of the movable arm is fixed with a threaded rod, and the inner side of the connecting ear is provided with a threaded hole that matches the threaded rod. The movable arm and the connecting ear are fixedly connected by a stop washer and a nut. The minimum number of movable arms is 6.

7. A universal vibration monitoring sensor fixing device for ancient wooden structures according to claim 5, characterized in that: The sensor mounting assembly includes a foldable tray, one side of which is connected to the outside of the clamping block. The bottom of the foldable tray is connected to a diagonal support rod via a pin, and the other end of the diagonal support rod is connected to a connecting seat. The connecting seat is located at the bottom of the clamping block and is integrally formed with the clamping block.

8. A universal vibration monitoring sensor fixing device for ancient wooden structures according to claim 2, characterized in that: The hinge connection assembly is made of stainless steel and has a grease sealing cavity at the pin. The number of detachable hinges is 3-4, which are evenly distributed along the circumference of the clamp pressure block connection assembly. The central angle between two adjacent detachable hinges is 90°-120°.

9. A universal vibration monitoring sensor fixing device for ancient wooden buildings according to claim 4, characterized in that: The QR code is used to associate the device with its installation instructions, maintenance schedule, and compatible sensor model.

10. A universal vibration monitoring sensor fixing device for ancient wooden structures according to claim 7, characterized in that: The foldable tray is connected to the outside of the clamping block via a hinge, and the upper surface of the foldable tray is provided with a horizontal bubble.

Images