Anti-vibration fixing device for cable force dynamometer

Abstract

The utility model belongs to building structure health monitoring technical field, specifically disclose a kind of anti-vibration fixing device for cable force dynamic detector, including upper clamping piece and lower clamping piece, the upper clamping piece includes broken line clamping plate and the first locking plate of broken line clamping plate side edge fixed, lower clamping piece includes arc clamping plate and the second locking plate of arc clamping plate side edge fixed;Broken line clamping plate middle part is fixed with dynamic detector sensor, and dynamic detector sensor is closely attached with broken line clamping plate;Broken line clamping plate and the inner wall of first locking plate, arc clamping plate and second locking plate are all fixed with elastic buffer layer, and fixed pad is fixed in the inner wall of elastic buffer layer, and adjusting pad is equipped between the fixed pad on first locking plate and second locking plate;Locking assembly is provided between first locking plate and second locking plate, and first locking plate and second locking plate are fixed through locking assembly;Through elastic buffer layer and vibration isolation pad layer double damping design, effectively reduce the influence of vibration to sensor.

Description

Technical Field

[0001] This utility model relates to the field of building structure health monitoring technology, specifically to an anti-vibration fixing device for a cable force dynamic measuring instrument. Background Technology

[0002] The cable force dynamic measuring instrument is a portable intelligent instrument used to measure the cable force state, and it is widely used in bridge, building steel structure, prestressed cable and other engineering projects. This instrument collects the micro-vibration signals of the cable and calculates the cable force value by combining the frequency method or wave velocity method. It has the advantages of being non-destructive and easy to operate.

[0003] However, in practical engineering applications, since cables are usually circular in cross-section and are subjected to complex environments such as wind vibration, traffic vibration, and self-vibration over a long period of time, traditional cable force dynamic testing instruments often use straps, magnetic attraction, or simple clamps for fixing the sensors, which has the following problems:

[0004] Insecure fixing: Under continuous vibration, the fixing device is prone to loosening, causing relative slippage between the sensor and the cable;

[0005] Signal distortion: Unstable fixation causes poor contact, resulting in vibration signal attenuation or distortion, which affects the accuracy of cable force calculation;

[0006] Installation is inconvenient: Traditional fixing methods have poor adaptability and are difficult to adapt to cables of different diameters, resulting in low on-site installation efficiency.

[0007] Therefore, there is an urgent need to develop a fixing device with a reasonable structure, convenient installation, and strong vibration resistance to improve the working stability and testing accuracy of the cable force dynamic tester in complex environments. Summary of the Invention

[0008] The purpose of this invention is to provide an anti-vibration fixing device for a cable force dynamic measuring instrument, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a vibration-damping fixing device for a cable force dynamic measuring instrument, comprising an upper clamping member and a lower clamping member. The upper clamping member includes a zigzag-shaped clamping plate and a first locking plate fixed to the side of the zigzag-shaped clamping plate. The lower clamping member includes an arc-shaped clamping plate and a second locking plate fixed to the side of the arc-shaped clamping plate. A dynamic measuring instrument sensor is fixed in the middle of the zigzag-shaped clamping plate, and the dynamic measuring instrument sensor is in close contact with the zigzag-shaped clamping plate. An elastic buffer layer is fixed to the inner wall of the zigzag-shaped clamping plate and the first locking plate, and to the inner wall of the arc-shaped clamping plate and the second locking plate. A fixing shim is fixed to the inner wall of the elastic buffer layer. An adjusting shim is provided between the fixing shims on the first locking plate and the second locking plate. A locking assembly is provided between the first locking plate and the second locking plate, and the first locking plate and the second locking plate are fixed by the locking assembly.

[0010] The upper clamping component is zigzag-shaped and fits tightly against the motion measuring instrument sensor, preventing both horizontal sliding and rotation of the sensor. The lower clamping component is arc-shaped and fits tightly against the prestressed cable. The elastic buffer layer enhances friction and absorbs vibration energy while blocking vibration transmission. The fixing pad layer secures the clamping body and the prestressed cable, preventing slippage and misalignment. Adjustable shims of different thicknesses or in different quantities are placed between the upper and lower fixing pad layers to accommodate cables of different diameters. The locking assembly secures the upper and lower clamping components.

[0011] In a preferred embodiment of this invention, the zigzag clamp has a sensor mounting hole, and the motion measuring instrument sensor is fixed inside the sensor mounting hole. The sensor mounting hole is provided for mounting the motion measuring instrument sensor.

[0012] In a preferred embodiment of this invention, the first locking plate has a plurality of first locking holes, and the second locking plate has a plurality of second locking holes. The first locking holes and the second locking holes are aligned and fixed together by a locking assembly. The first locking holes and the second locking holes are provided to cooperate with the locking assembly to fix the first locking plate and the second locking plate.

[0013] As a preferred embodiment of this invention, the elastic buffer layer is made of highly elastic silicone material. This improves the buffering effect, and the thickness of the elastic buffer layer is 2-5mm.

[0014] As a preferred embodiment of this invention, the fixing pad is made of rubber material. This improves the anti-slip effect, and the fixing pad has a thickness of 3mm.

[0015] In a preferred embodiment of this invention, the locking assembly includes an anti-loosening bolt and a self-locking nut. The anti-loosening bolt passes through the second locking hole and the first locking hole and is connected to the self-locking nut. This secures the upper clamping member and the lower clamping member.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] It has strong vibration resistance and effectively reduces the impact of vibration on the sensor through a dual vibration reduction design of elastic buffer layer and vibration isolation pad layer;

[0018] The device is securely fixed, with a combination of a ring-shaped clamping structure and a self-locking fastening mechanism to prevent loosening and ensure long-term stable operation.

[0019] It has good adaptability, and the clamping structure can be adjusted by changing the shims according to the diameter of the cable, making it suitable for various specifications of cables;

[0020] Easy to install, simple in structure, and convenient to operate, it is suitable for rapid on-site deployment. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the upper clamping component of this utility model;

[0023] Figure 3 This is a top view of the upper clamping component of this utility model.

[0024] In the diagram: 1. Upper clamping component; 101. Folded-line clamping plate; 1011. Sensor mounting hole; 102. First locking plate; 1021. First locking hole; 2. Lower clamping component; 201. Arc-shaped clamping plate; 202. Second locking plate; 2021. Second locking hole; 3. Dynamic measuring instrument sensor; 4. Elastic buffer layer; 5. Fixing shim; 6. Adjusting shim; 7. Locking assembly; 701. Anti-loosening bolt; 702. Self-locking nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Please see Figure 1-3This utility model provides a technical solution: a vibration-damping fixing device for a cable force dynamic measuring instrument, comprising an upper clamping member 1 and a lower clamping member 2. The upper clamping member 1 includes a zigzag-shaped clamping plate 101 and a first locking plate 102 fixed to the side of the zigzag-shaped clamping plate 101. The lower clamping member 2 includes an arc-shaped clamping plate 201 and a second locking plate 202 fixed to the side of the arc-shaped clamping plate 201. A dynamic measuring instrument sensor 3 is fixed in the middle of the zigzag-shaped clamping plate 101. The dynamic measuring instrument sensor 3 and the zigzag-shaped clamping plate 101 are connected. 1. Tight fit; the inner walls of the zigzag clamp 101 and the first locking plate 102, and the arc-shaped clamp 201 and the second locking plate 202 are all fixed with elastic buffer layers 4, and the inner walls of the elastic buffer layers 4 are fixed with fixing shims 5. An adjusting shim 6 is provided between the fixing shims 5 on the first locking plate 102 and the second locking plate 202; a locking assembly 7 is provided between the first locking plate 102 and the second locking plate 202, and the first locking plate 102 and the second locking plate 202 are fixed by the locking assembly 7.

[0029] The upper clamping member 1 is a zigzag shape, which fits tightly against and is fixed to the dynamic measuring instrument sensor 3. This not only prevents the dynamic measuring instrument sensor 3 from sliding horizontally, but also prevents it from rotating. The lower clamping member 2 is an arc shape, which fits tightly against the prestressed cable. The elastic buffer layer 4 is used to enhance friction and absorb vibration energy, while blocking vibration transmission. The fixing pad is used to fix the clamping body and the prestressed cable, preventing slippage and misalignment between the two. The adjusting shims 6 can be replaced with different thicknesses or different numbers, and are set between the upper and lower fixing pads to adapt to cables of different diameters. The locking assembly 7 is used to fix the upper clamping member 1 and the lower clamping member 2.

[0030] Furthermore, the zigzag clamp 101 has a sensor mounting hole 1011, and the motion measuring instrument sensor 3 is fixed in the sensor mounting hole 1011. The sensor mounting hole 1011 is provided for mounting the motion measuring instrument sensor 3.

[0031] Furthermore, the first locking plate 102 has a plurality of first locking holes 1021, and the second locking plate 202 has a plurality of second locking holes 2021. The first locking holes 1021 and the second locking holes 2021 are aligned and fixed by the locking assembly 7. The first locking holes 1021 and the second locking holes 2021 are provided to cooperate with the locking assembly 7 to fix the first locking plate 102 and the second locking plate 202.

[0032] Furthermore, the elastic buffer layer 4 is made of highly elastic silicone material to improve the buffering effect. The thickness of the elastic buffer layer 4 is 2-5mm.

[0033] Furthermore, the fixing pad 5 is made of rubber material to improve the anti-slip effect; the fixing pad 5 has a thickness of 3mm.

[0034] Furthermore, the locking assembly 7 includes an anti-loosening bolt 701 and a self-locking nut 702. The anti-loosening bolt 701 passes through the second locking hole 2021 and the first locking hole 1021 and is connected to the self-locking nut 702. This fixes the upper clamping member 1 and the lower clamping member 2.

[0035] In summary, during use, the cable force dynamic measuring instrument sensor 3 is installed in the sensor mounting hole 1011 on the zigzag clamp 101 to complete the fixation; then, the upper clamp 1 and lower clamp 2 are opened and fitted onto the outside of the cable; then, an adjusting shim 6 of appropriate thickness is selected according to the cable diameter, and the adjusting shim 6 is placed between the fixing shims 5 on the first locking plate 102 and the second locking plate 202; then, the upper clamp 1 and lower clamp 2 are closed, and the anti-loosening bolt 701 is passed through the second locking hole 2021 and the first locking hole 1021 and the self-locking nut 702 is tightened, so that the fixing shims 5 on the zigzag clamp 101 and the arc clamp 201 are in contact with the cable, completing the fixation. During the cable vibration process, the elastic buffer layer 4 and the fixing shim layer work together to effectively absorb vibration energy and prevent signal distortion; at the same time, the locking assembly 7 ensures that the device does not loosen due to vibration, ensuring the stability and accuracy of long-term monitoring.

[0036] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration-resistant fixing device for a cable force dynamic measuring instrument, characterized in that: The device includes an upper clamping member (1) and a lower clamping member (2). The upper clamping member (1) includes a zigzag-shaped clamping plate (101) and a first locking plate (102) fixed to the side of the zigzag-shaped clamping plate (101). The lower clamping member (2) includes an arc-shaped clamping plate (201) and a second locking plate (202) fixed to the side of the arc-shaped clamping plate (201). A motion measuring instrument sensor (3) is fixed in the middle of the zigzag-shaped clamping plate (101), and the motion measuring instrument sensor (3) is in close contact with the zigzag-shaped clamping plate (101). The zigzag-shaped clamping plate (101) and the first locking plate (202) are in close contact. The inner walls of the locking plate (102), the arc-shaped clamping plate (201) and the second locking plate (202) are all fixed with an elastic buffer layer (4). The inner wall of the elastic buffer layer (4) is fixed with a fixing pad (5). An adjusting pad (6) is provided between the fixing pad (5) on the first locking plate (102) and the second locking plate (202). A locking assembly (7) is provided between the first locking plate (102) and the second locking plate (202). The first locking plate (102) and the second locking plate (202) are fixed by the locking assembly (7).

2. The vibration-resistant fixing device for a cable force dynamic measuring instrument according to claim 1, characterized in that, The zigzag clamp (101) has a sensor mounting hole (1011), and the dynamic measuring instrument sensor (3) is fixed in the sensor mounting hole (1011).

3. The vibration-resistant fixing device for a cable force dynamic measuring instrument according to claim 1, characterized in that, The first locking plate (102) has a plurality of first locking holes (1021), and the second locking plate (202) has a plurality of second locking holes (2021). The first locking holes (1021) and the second locking holes (2021) are aligned and fixed by the locking assembly (7).

4. The vibration-resistant fixing device for a cable force dynamic measuring instrument according to claim 1, characterized in that, The elastic buffer layer (4) is made of highly elastic silicone material.

5. The vibration-resistant fixing device for a cable force dynamic measuring instrument according to claim 1, characterized in that, The fixing pad (5) is made of rubber material.

6. The vibration-resistant fixing device for a cable force dynamic measuring instrument according to claim 1, characterized in that: The locking assembly (7) includes an anti-loosening bolt (701) and a self-locking nut (702). The anti-loosening bolt (701) passes through the second locking hole (2021) and the first locking hole (1021) and is connected to the self-locking nut (702).

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