A fiber optic sensor for concrete detection

Abstract

This utility model discloses a fiber optic sensor for concrete detection. A base plate, a side plate, and a shell are combined to form a box, in which the main part of the sensor fiber optic tube is located. Before fixing the C-shaped buckle to the reinforcing bar, concrete is carefully filled into the box to fill it and wrap the sensor fiber optic tube. Then, the C-shaped buckle is fixed to the reinforcing bar, and the box is placed in the casting template with the side plate at the edge of the template. The head of the sensor fiber optic tube and the handle protrude from the template. Then, concrete is poured into the template. The concrete that is filled into the box in advance can protect the sensor fiber optic tube. After the pouring is completed, the shell is pulled out by pulling the handle exposed on the outside, so that the sensor fiber optic tube is embedded in the concrete.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic sensors, and in particular to a fiber optic sensor for concrete detection. Background Technology

[0002] Fiber optic sensors used in concrete generally refer to fiber optic sensors used to measure various values ​​inside concrete. Fiber optic sensors can directly measure physical quantities such as temperature and strain. The fiber optic sensor needs to be installed inside the concrete pouring body, and external protective measures are essential. Existing protective measures for fiber optic sensors used in concrete are not very good. When embedding and pouring concrete, the impact force generated by the concrete spraying can easily damage the sensor. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fiber optic sensor for concrete detection, which solves the current pain points in this field.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A fiber optic sensor for concrete detection includes a substrate, a sensor fiber optic tube, and a housing. The sensor fiber optic tube is fixedly mounted on the substrate perpendicularly. A side plate is fitted near the end of the sensor fiber optic tube. The side plate is slidably mounted in the housing. The end of the housing can be inserted into the substrate. A handle is fixedly mounted on the outside of the housing.

[0005] A C-shaped buckle is fixedly installed on the side of the substrate away from the sensor fiber optic tube. The C-shaped buckle is made of plastic and can be fixed to the reinforcing bar by the toughness of the material.

[0006] The side plate and the base plate are fixedly connected by a connecting rod.

[0007] In summary, the advantages of this utility model compared to the prior art are as follows: the device allows the sensor to be encased in a combined box when embedded in concrete. A small amount of concrete can be filled into the box to pre-encapsulate the sensor, ensuring both close contact with and encapsulation of the concrete. After the device is placed in the concrete and poured, the outer shell can be removed, allowing the concrete inside the box to combine with other parts to form a whole, without affecting the sensor's detection performance. Attached Figure Description

[0008] The above and other objects, features, and advantages of the present invention will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated in the drawings by way of example and not limitation, in which: Figure 1 This is a schematic diagram of the structure of a fiber optic sensor for concrete detection. Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.

[0009] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. C-shaped buckle; 3. Sensor fiber optic tube; 4. Side plate; 5. Connecting rod; 6. Housing; 7. Handle. Detailed Implementation

[0010] The utility model will be further described in detail below with reference to the accompanying drawings.

[0011] A fiber optic sensor for concrete detection includes a substrate 1, a sensor fiber optic tube 3, and a housing 6. The sensor fiber optic tube 3 is fixedly mounted on the substrate 1 perpendicularly to the substrate 1. A C-shaped buckle 2 is fixedly mounted on the side of the substrate 1 away from the sensor fiber optic tube 3. The C-shaped buckle 2 is made of plastic and can be fixed to the reinforcing steel through the toughness of the material. A side plate 4 is fitted near the end of the sensor fiber optic tube 3. The side plate 4 is fixedly connected to the substrate 1 by a connecting rod 5. The side plate 4 is slidably mounted in the housing 6. The end of the housing 6 can be inserted into the substrate 1. A handle 7 is fixedly mounted on the outside of the housing 6.

[0012] The substrate 1, the side plate 4, and the outer shell 6 are combined to form a box, in which the main part of the sensor fiber optic tube 3 is located. Before fixing the C-shaped buckle 2 to the reinforcing bar, concrete is carefully filled into the box to fill it and wrap the sensor fiber optic tube 3. Then, the C-shaped buckle 2 is fixed to the reinforcing bar so that the box is placed in the casting template and the side plate 4 is positioned at the edge of the template. The head of the sensor fiber optic tube 3 and the handle 7 extend out of the template. Then, concrete is poured into the template. The concrete that is filled into the box in advance can provide protection for the sensor fiber optic tube 3. After the pouring is completed, the outer shell 6 is pulled out by pulling the handle 7 exposed on the outside, so that the sensor fiber optic tube 3 is embedded in the concrete.

Claims

1. A fiber optic sensor for concrete detection, characterized in that: The device includes a substrate (1), a sensor fiber optic tube (3), and a housing (6). The sensor fiber optic tube (3) is fixedly mounted on the substrate (1) perpendicular to the substrate (1). A side plate (4) is fitted near the end of the sensor fiber optic tube (3). The side plate (4) is slidably mounted in the housing (6). The end of the housing (6) can be inserted into the substrate (1). A handle (7) is fixedly mounted on the outside of the housing (6).

2. The fiber optic sensor for concrete detection according to claim 1, characterized in that: A C-shaped buckle (2) is fixedly installed on the side of the substrate (1) away from the sensor fiber optic tube (3). The C-shaped buckle (2) is made of plastic material and can be fixed to the steel bar by the toughness of the material.

3. The fiber optic sensor for concrete detection according to claim 1, characterized in that: The side plate (4) and the base plate (1) are fixedly connected by a connecting rod (5).

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