Sensor fixing device

Abstract

The utility model relates to a sensor fixing device, which is used for installing a strain sensor with two through holes on a measured structure, and comprises a base, a positioning column, a turning rod, a magnetic adsorption block, a connecting body and a bonding layer, the number of the bases is two, and the bases are connected to the two ends of the connecting body respectively. The positioning column is vertically connected to the base; one end of the turning rod is rotationally connected to the top of the positioning column, and the other end of the turning rod is adsorbed to the top of the magnetic adsorption block; the magnetic adsorption block is vertically fixed on the side of the base; the bonding layer is connected to the bottom of the base; the fixing device can be directly adhered to the surface of a measured structure, and the strain sensor is directly fixed through magnetic attraction cooperation of the turning rod and the magnetic attraction block, so that the mounting difficulty of the strain sensor is reduced, and meanwhile, the later maintenance difficulty of the strain sensor is reduced.

Description

Technical Field

[0001] This utility model relates to the field of structural monitoring, and specifically refers to a sensor fixing device. Background Technology

[0002] A structural strain sensor is a sensing device specifically designed to measure structural deformation and stress state. It can capture the deformation of materials under external forces, thereby providing real-time data support for assessing structural health, monitoring load changes, and preventing disasters.

[0003] While current common strain sensor fixing techniques have some effectiveness, the structural safety of the measured object depends on real-time monitoring by strain monitoring equipment because the object being measured will be affected by factors such as load, fatigue, and environmental changes during long-term use.

[0004] Existing strain sensors are usually fixed to the surface of the monitored structure with bolts, which makes installation troublesome and makes maintenance difficult if problems occur due to external factors. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sensor fixing device to solve the problems of troublesome installation and subsequent maintenance of strain sensors in the prior art.

[0006] To achieve the above objectives, this utility model provides a sensor fixing device for mounting a strain sensor with two through holes on the structure being measured. The fixing device includes a base, a positioning column, a flip rod, a magnetic adsorption block, a connector, and an adhesive layer.

[0007] Two bases are provided, and each is connected to one end of the connector.

[0008] The positioning post is vertically connected to the base;

[0009] One end of the flip rod is rotatably connected to the top of the positioning post, and the other end is adsorbed onto the top of the magnetic adsorption block;

[0010] The magnetic adsorption block is vertically fixed to the side of the base;

[0011] The adhesive layer is attached to the bottom of the base.

[0012] By adopting this technical solution, the main body of the fixing device is directly connected to the structure under test through the adhesive layer. When installing the strain sensor, it is only necessary to flip the lever so that it is vertical to the positioning post, allowing the through hole of the strain sensor to pass through the lever and be fitted onto the positioning post. Then, the lever is flipped to the end to be attached and fixed to the magnetic adsorption block, thus fixing the strain sensor to the base. This completes the quick installation of the strain sensor. Furthermore, subsequent maintenance only requires applying a pulling force to the lever to detach it from the magnetic adsorption block, reducing the maintenance difficulty of the strain sensor.

[0013] Furthermore, the shape of the positioning post corresponds to the through hole.

[0014] By adopting this technical solution, when the through hole on the strain sensor is fitted onto the positioning post, it has the effect of stabilizing the strain sensor and increasing the stability of the strain sensor after installation.

[0015] Furthermore, a flexible pad is attached to the side of the flip rod facing the base.

[0016] By adopting this technical solution, the flexible padding layer can reduce the wear of the strain sensor on the flip bar, and at the same time eliminate the influence of a certain thickness error of the strain sensor on the installation effect.

[0017] Furthermore, the end of the flip rod furthest from the rotatable connection with the positioning post is embedded with metal.

[0018] By adopting this technical solution, metal is added to accommodate the magnetic attraction of the magnetic adsorption block, thereby increasing the tightness after magnetic attraction and avoiding the problem of strain sensor falling off due to the flip rod detaching for no reason.

[0019] Furthermore, the magnetic adsorption block includes an adsorption support fixed to the edge of the base and a strong magnet embedded at the top of the adsorption support.

[0020] By adopting this technical solution, the adsorption support provides support height to reduce the cost of using strong magnets, and enables the strong magnets to better cooperate with the flip bar.

[0021] Furthermore, the top end of the adsorption support and the top end of the positioning column are on the same horizontal plane.

[0022] By adopting this technical solution, the flip rod is fixed in a horizontal state after adsorption, which adapts to the horizontal state of the top surface of the strain sensor, thereby increasing the contact area between them and thus increasing the stability of the strain sensor after installation.

[0023] Furthermore, the connector is tensile along the connection direction of the two bases.

[0024] By adopting this technical solution, the spacing between the two bases can be adjusted to accommodate the spacing between the two through holes on different strain sensors, thus increasing the applicability of the device.

[0025] Furthermore, the adhesive layer covers the entire bottom of the base, and release paper is attached to the side away from the base.

[0026] By adopting this technical solution, the full coverage of the adhesive layer can increase the stability of the bonding between the base and the structure under test; the use of release paper can prevent the adhesive layer from being damaged before use.

[0027] Compared with the prior art, this utility model has the following advantages:

[0028] The fixing device can be directly bonded to the surface of the structure being measured, and the strain sensor can be fixed directly by the magnetic attraction between the flip rod and the magnetic adsorption block, thereby reducing the installation difficulty of the strain sensor and the difficulty of its subsequent maintenance. Attached Figure Description

[0029] Figure 1 This is a front view diagram of the sensor fixing device of this utility model.

[0030] Figure 2 This is a schematic diagram of the sensor fixing device of this utility model with the flip rod open.

[0031] Figure 3 This is a top view of the sensor fixing device of this utility model.

[0032] Figure 4 This is a side view of the sensor fixing device of this utility model with the flip rod open.

[0033] Figure 5 This is a perspective view of the connection structure of a single base of the sensor fixing device of this utility model.

[0034] Explanation of reference numerals in the attached drawings: 1. Structure under test; 2. Base; 3. Flip rod; 4. Magnetic adsorption block; 4.1. Adsorption support; 4.2. Strong magnet; 5. Connector; 6. Strain sensor. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Please see the appendix Figure 1-4This utility model provides a sensor fixing device for mounting a strain sensor 6 with two through holes on the structure under test 1. The fixing device includes a base 2, a positioning post, a flip rod 3, a magnetic adsorption block 4, a connecting body 5, and an adhesive layer. Two bases 2 are provided and are respectively connected to the two ends of the connecting body 5. The positioning post is vertically connected to the base 2. One end of the flip rod 3 is rotatably connected to the top of the positioning post, and the other end is adsorbed onto the top of the magnetic adsorption block 4. The magnetic adsorption block 4 is vertically fixed to the side of the base 2. The adhesive layer is connected to the bottom of the base 2.

[0037] The main body of the fixing device is directly connected to the structure under test 1 through the adhesive layer. When installing the strain sensor 6, it is only necessary to flip the lever 3 to be vertical with the positioning post so that the through hole of the strain sensor 6 can pass through the lever 3 and be fitted onto the positioning post. Then, the lever 3 is flipped to the end and is attached to the magnetic adsorption block 4 to fix it. This can fix the strain sensor 6 on the base 2, thereby completing the quick installation of the strain sensor 6. In addition, during subsequent maintenance, it is only necessary to apply a pulling force to the lever 3 to make it detach from the magnetic adsorption block 4, which reduces the maintenance difficulty of the strain sensor 6.

[0038] Furthermore, the shape of the positioning post corresponds to the through hole; this allows the through hole on the strain sensor 6 to be fitted onto the positioning post, thus stabilizing the strain sensor 6 and increasing its stability after installation.

[0039] Furthermore, a flexible pad is attached to the side of the flip rod 3 facing the base 2; the flexible pad can reduce the wear of the flip rod 3 on the strain sensor 6, and at the same time eliminate the influence of a certain thickness error of the strain sensor 6 on the installation effect.

[0040] Furthermore, the end of the flip rod 3 furthest from the rotatable connection with the positioning post is embedded with metal; the addition of metal is to accommodate the magnetic attraction of the magnetic adsorption block 4, thereby increasing the tightness after magnetic attraction and avoiding the problem of strain sensor 6 falling off due to the flip rod 3 detaching without cause.

[0041] Furthermore, please refer to the attached document. Figure 5 The magnetic adsorption block 4 includes an adsorption support 4.1 fixed to the side of the base 2 and a strong magnet 4.2 embedded at the top of the adsorption support 4.1; the adsorption support 4.1 provides support height to reduce the cost of using the strong magnet 4.2, and enables the strong magnet 4.2 to better magnetically engage with the flip bar 3.

[0042] Furthermore, the top of the adsorption support 4.1 is on the same horizontal plane as the top of the positioning column; this ensures that the flip rod 3 is in a horizontal state after adsorption and fixation, adapting to the horizontal state of the top surface of the strain sensor 6, thereby increasing the contact area between them and thus increasing the stability of the strain sensor 6 after installation.

[0043] Furthermore, the connector 5 is tensile along the connection direction of the two bases 2, making the spacing between the two bases 2 adjustable to accommodate the spacing between the two through holes on different strain sensors 6, thus increasing the applicability of the device.

[0044] Furthermore, the adhesive layer covers the entire bottom of the base 2, and release paper is attached to the side away from the base 2; the full coverage of the adhesive layer can increase the stability of the base 2 after bonding with the structure under test; the release paper can prevent the adhesive layer from being damaged before use.

[0045] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A sensor fixing device for mounting a strain sensor having two through holes on a structure to be measured, characterized by: The fixing device comprises a base, a positioning column, a turnover rod, a magnetic adsorption block, a connecting body and an adhesive layer. The base is provided with two, and is connected to the two ends of the connecting body respectively. The positioning column is vertically connected to the base. One end of the turnover rod is rotatably connected to the top of the positioning column, and the other end is adsorbed to the top of the magnetic adsorption block. The magnetic adsorption block is vertically fixed to the side of the base. The adhesive layer is connected to the bottom of the base.

2. The sensor fixation device of claim 1, wherein: The shape of the positioning column corresponds to the through hole.

3. The sensor fixation device of claim 1, wherein: The side surface of the turnover rod facing the base is covered with a flexible pad layer.

4. The sensor fixation device of claim 1, wherein: The end of the turnover rod away from the rotatable connection with the positioning column is embedded with metal.

5. The sensor fixation device of claim 1, wherein: The magnetic adsorption block comprises an adsorption support fixed to the edge of the base and a strong magnet embedded in the top end of the adsorption support.

6. The sensor fixation device of claim 5, wherein: The top end of the adsorption support is at the same horizontal plane as the top end of the positioning column.

7. The sensor fixation device of claim 1, wherein: The connecting body has stretchability along the connection direction of the two bases.

8. The sensor fixation device of claim 1, wherein: The adhesive layer covers the bottom of the base, and the side away from the base is attached with release paper.

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