A reinforced concrete cover measuring instrument for high-rise buildings

By combining a base, an electric push rod, an electromagnetic sensor, and a laser scanner, the problems of low efficiency, high risk, and accuracy being affected by human factors in the traditional detection of steel reinforcement protective layers in high-rise buildings have been solved, achieving efficient and safe detection of protective layer thickness.

CN224535008UActive Publication Date: 2026-07-21CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-21

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Abstract

The utility model relates to a reinforced protection layer measuring instrument of high -rise building, include: base, the bottom fixed mounting of base has the travelling wheel, fixed mounting in the electric push rod of base top, set up in the collection platform of the one end of electric push rod away from base, be provided with the electromagnetic inductor in the collection platform, the top of collection platform is provided with laser scanner, through laser scanner to scan the bottom of floor, and set up in the side department of collection platform a plurality of sliding wheels, the top elevation of sliding wheel is higher than the top elevation of laser scanner, simple structure, convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and specifically to a measuring instrument for the protective layer of steel bars in high-rise buildings. Background Technology

[0002] In the construction and quality inspection of high-rise buildings, measuring the thickness of the concrete cover for reinforcing bars is a crucial step in ensuring structural safety and durability. An excessively thin concrete cover can lead to rebar corrosion, affecting the structure's load-bearing capacity; conversely, an excessively thick cover can reduce the crack resistance of concrete components. Traditional methods for measuring the thickness of the concrete cover primarily rely on handheld measuring instruments, requiring personnel to work at heights, which presents problems such as low efficiency, high risk, and measurement accuracy being affected by human factors. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a measuring instrument for the concrete cover of high-rise buildings. In use, the base is moved to the bottom of the concrete cover to be tested, and then the acquisition platform is raised to the bottom surface of the concrete cover to be tested by an electric push rod. The concrete cover is then tested by an electromagnetic sensor and a laser scanner.

[0004] The technical solution to achieve the above objectives is a measuring instrument for the concrete cover of steel bars in high-rise buildings, comprising:

[0005] A base, the bottom of which is fixedly equipped with casters;

[0006] An electric push rod is fixedly installed on the top of the base;

[0007] A data acquisition platform is located at the end of the electric actuator furthest from the base. An electromagnetic sensor is installed within the platform, and a laser scanner is mounted on top of the platform to scan the bottom of the floor slab.

[0008] Several sliding wheels are installed on the side of the acquisition platform, and the top elevation of the sliding wheels is higher than the top elevation of the laser scanner.

[0009] Furthermore, the bottom of the base is provided with several hydraulic push rods, which are respectively located at the four ends of the base. The levelness of the base can be adjusted by adjusting the length of each hydraulic push rod.

[0010] Furthermore, a gyroscope is provided at the bottom of the base.

[0011] Furthermore, the electric push rod is provided with several support brackets on its side, and the bottom of the support brackets is fixed to the top of the base.

[0012] Furthermore, the acquisition platform is equipped with a tilt sensor.

[0013] Furthermore, a battery is provided at the bottom of the base, and the battery is connected to the electric push rod via a wire.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] In use, the base is moved below the protective layer to be tested, and then the acquisition platform is raised to the bottom of the protective layer by an electric push rod. The protective layer is then tested by an electromagnetic sensor and a laser scanner. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a measuring instrument for the concrete cover of high-rise buildings;

[0017] Figure 2 This is an overall structural diagram of the bottom of a measuring instrument for the concrete cover of steel bars in high-rise buildings;

[0018] Figure 3 This is an overall structural diagram of the data acquisition platform for a measuring instrument for the concrete cover of steel bars in high-rise buildings.

[0019] Legend: 1. Base; 2. Support bracket; 3. Electric push rod; 4. Data acquisition platform; 5. Hydraulic push rod; 6. Moving wheel; 7. Gyroscope; 8. Sliding wheel; 9. Laser scanner; 10. Tilt sensor. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] See Figure 1 and Figure 2 A measuring instrument for the concrete cover of high-rise buildings includes: a base 1, with casters 6 fixedly installed on the bottom of the base 1; an electric push rod 3 fixedly installed on the top of the base 1; a data acquisition platform 4 disposed at the end of the electric push rod 3 away from the base 1, an electromagnetic sensor disposed inside the data acquisition platform 4, a laser scanner 9 disposed on the top of the data acquisition platform 4 for scanning the bottom of the floor slab; and a plurality of sliding wheels 8 disposed on the side of the data acquisition platform 4, the top elevation of the sliding wheels 8 being higher than the top elevation of the laser scanner 9.

[0022] In this invention, a preferred embodiment is as follows: During use, the base 1 is moved to the floor slab below the protective layer to be inspected, and then the acquisition platform 4 is raised to the bottom of the protective layer by the electric push rod 3, so that the sliding wheels are in contact with the bottom of the protective layer. The protective layer is then inspected by an electromagnetic sensor and a laser scanner 9. The electromagnetic sensor can detect the position of the reinforcing bars in the protective layer, and the laser scanner 9 can detect the surface condition of the protective layer, such as the flatness, tilt, presence of pits, and surface friction. Preferably, the electromagnetic sensor and the laser scanner 9 are equipped with a wireless electric controller to control the operation of the electromagnetic sensor and the laser scanner 9. The electromagnetic sensor and the laser scanner 9 are also equipped with a Bluetooth communication module, which can transmit the information detected by the laser scanner 9 and the electromagnetic sensor to a monitoring device, such as a mobile phone or a computer set up in the construction area.

[0023] Furthermore, an electromagnetic sensor is also installed inside the base. When the base is placed on top of the floor slab, the electromagnetic sensor senses the steel bars in the floor slab where the base is located to confirm the thickness of the protective layer of the floor slab. The acquisition platform 4 is then raised to below the protective layer to be tested by the electric push rod 3.

[0024] Furthermore, the bottom of the base 1 is provided with several hydraulic push rods 5, which are respectively located at the four ends of the base 1. The levelness of the base 1 can be adjusted by adjusting the length of each hydraulic push rod 5. When it is necessary to test the protective layer, the hydraulic push rods 5 can be activated to press against the ground. By adjusting the length of each hydraulic push rod 5, the base 1 can be leveled to ensure that it is in a horizontal state. This facilitates the subsequent testing of the protective layer by the electrical sensor and the laser scanner 9. Preferably, a level can be installed on the base 1 to detect whether the base 1 is in a horizontal state.

[0025] Furthermore, a gyroscope 7 is installed at the bottom of the base 1. This gyroscope 7 ensures the stability and reliability of the measurement data and improves accuracy.

[0026] Furthermore, the electric push rod 3 has several support brackets 2 on its side, and the bottom of each support bracket 2 is fixed to the top of the base 1. By fixing the electric push rod 3 with these support brackets 2, it is ensured that the electric push rod 3 will not wobble when pushed.

[0027] Furthermore, a tilt sensor 10 is installed inside the acquisition platform 4. This tilt sensor 10 monitors the angle changes of the acquisition platform 4 in real time to improve the accuracy of the detection.

[0028] Furthermore, a battery is provided at the bottom of the base 1, and the battery is connected to the electric push rod 3 via a wire. Preferably, a battery is provided inside the acquisition platform 4, which can provide power to the electromagnetic sensor of the laser scanner 9.

[0029] The following describes the usage process of the steel reinforcement protective layer measuring instrument for high-rise buildings according to this utility model.

[0030] In use, the base 1 is moved to the floor slab below the protective layer to be tested, and then the acquisition platform 4 is raised to the bottom of the protective layer to be tested by the electric push rod 3. The protective layer is tested by an electromagnetic sensor and a laser scanner 9. The electromagnetic sensor can detect the position of the steel bars in the protective layer, and the laser scanner 9 can detect the surface condition of the protective layer, such as the flatness, tilt, presence of pits, and surface friction. After the protective layer in this area is measured, the base 1 is moved to the next area and the protective layer in the next area is measured.

[0031] 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 measuring instrument for the concrete cover of reinforcing bars in high-rise buildings, characterized in that, include: A base, the bottom of which is fixedly equipped with casters; An electric push rod is fixedly installed on the top of the base; A data acquisition platform is located at the end of the electric actuator furthest from the base. An electromagnetic sensor is installed within the platform, and a laser scanner is mounted on top of the platform to scan the bottom of the floor slab. Several sliding wheels are installed on the side of the acquisition platform, and the top elevation of the sliding wheels is higher than the top elevation of the laser scanner.

2. The measuring instrument for the concrete cover of high-rise buildings according to claim 1, characterized in that: The base has several hydraulic push rods at its bottom, which are respectively located at the four ends of the base. The levelness of the base can be adjusted by adjusting the length of each hydraulic push rod.

3. The measuring instrument for the concrete cover of high-rise buildings according to claim 1, characterized in that: A gyroscope is installed at the bottom of the base.

4. The measuring instrument for the concrete cover of high-rise buildings according to claim 1, characterized in that: The electric push rod has several support brackets on its side, and the bottom of the support brackets is fixed to the top of the base.

5. The measuring instrument for the concrete cover of high-rise buildings according to claim 1, characterized in that: The data acquisition platform is equipped with a tilt sensor.

6. The measuring instrument for the concrete cover of high-rise buildings according to claim 1, characterized in that: A battery is located at the bottom of the base, and the battery is connected to the electric push rod via a wire.