Sensor positioning device for measuring concrete defects based on impact echoes

Abstract

The utility model discloses a sensor positioning device for measuring concrete defects based on impact echoes, particularly relates to the technical field of concrete detection, and comprises a detection wheel, and six groups of sensing components and detection components for detecting the concrete defects are arranged outside the detection wheel; the detection assembly comprises a side plate arranged at the front end of the detection wheel, an annular groove is formed in the side, close to the detection wheel, of the rear end of the side plate, six blades are arranged in the annular groove, and a detection area is arranged between every two adjacent blades. According to the utility model, through the reciprocating contact between the optocoupler and the six detection areas, the vertical position of the device and the horizontal plane can be positioned, and when the detection wheel rotates for a circle, the device can detect six output signals, so that the device can be positioned to the position vertical to the horizontal plane in multiple directions, and the detection accuracy is improved. And meanwhile, the overall structure is compact, the occupied space is small, and carrying, operation and use are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, and more specifically to a sensor positioning device for measuring concrete defects based on impact echo. Background Art

[0002] Concrete is usually a composite material mixed and stirred by cement, sand and gravel, water and other additives in a certain proportion, and is widely used in construction projects. Due to its complex materials, various defects may exist in its internal structure due to uneven mixing, such as cavities, cracks, foreign objects, air bubbles, etc., and these defects have a greater impact on safety.

[0003] The sensor positioning device for measuring concrete defects based on impact echo has significant advantages such as high detection efficiency, good accuracy, and simple operation. It is not only applicable to the defect detection of precast concrete components, but also can be widely used in the detection of large concrete structures such as bridges, tunnels, and dams. As shown in the prior art with the publication number CN203606327U, although this prior art can conveniently provide the required test impact echo when detecting the internal defects of concrete structures.

[0004] However, when this prior art is used, only one place can be detected at a time, and continuous multiple operations cannot be carried out conveniently, which will affect the detection efficiency. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a sensor positioning device for measuring concrete defects based on impact echo. Through the reciprocating contact of the optocoupler with six detection areas, six output signals can be detected, so that the utility model can multi-position to a position perpendicular to the horizontal plane, achieving the purpose of improving the detection accuracy. At the same time, the overall structure is compact, the space occupation is small, and it is convenient to carry and operate, so as to solve the problems appearing in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sensor positioning device for measuring concrete defects based on impact echo, including a detection wheel, and six groups of sensing components and detection components for concrete defect detection are arranged outside the detection wheel;

[0007] The detection component includes a side plate arranged at the front end of the detection wheel, and a ring groove is opened on one side of the rear end of the side plate close to the detection wheel. Six blades are arranged inside the ring groove, and a detection area is arranged between two adjacent blades;

[0008] An insertion hole communicating with the ring groove is opened outside the side plate, an optocoupler is arranged inside the insertion hole, and the optocoupler is sleeved outside one of the detection areas;

[0009] An encoder circuit board is installed on the front side of the side plate, and the front end of the optocoupler extends into the encoder circuit board.

[0010] In a preferred embodiment, each group of sensing components includes a buffer groove and a mounting groove that are opened outside the detection wheel and communicate with each other. The mounting groove is arranged on the side close to the detection wheel of the buffer groove. A piezoelectric ceramic sheet is installed inside the mounting groove, a nylon buffer pad is arranged inside the buffer groove, and a copper sheet is arranged on the side of the nylon buffer pad close to the corresponding piezoelectric ceramic sheet; the six detection areas respectively correspond to the six piezoelectric ceramic sheets. By the contact between the copper sheet on the nylon buffer pad and the piezoelectric ceramic sheet, the vertical position with respect to the horizontal plane can be detected.

[0011] In a preferred embodiment, a mounting hole is opened inside the side plate, and a mounting post is movably connected inside the mounting hole through a bearing. The rear end of the mounting post is fixed to the front end of the detection wheel. The mounting post is located between the six blades. Through the movable connection between the mounting post and the side plate, the detection wheel can rotate by means of the mounting post, achieving the effect of multi-directional detection.

[0012] In a preferred embodiment, a top hub is installed on the rear side of the end of the side plate away from the detection wheel. Through the setting of the top hub, it is convenient to install and fix the side plate, ensuring the support stability of the side plate for the detection wheel.

[0013] In a preferred embodiment, two mounting hole grooves are opened on the rear side of the top hub, and the two mounting hole grooves are symmetrically distributed about the central axis of the top hub. Through the setting of the mounting hole grooves, it is convenient for the staff to install the detection wheel to a suitable position for detection use.

[0014] In a preferred embodiment, an auxiliary hole is opened on the rear side of the detection wheel. Through the setting of the auxiliary hole, it is convenient to install the detection wheel to a suitable device, or install the device to the detection wheel, thereby improving the convenience of installing additional devices.

[0015] The technical effects and advantages of the present utility model:

[0016] Through the reciprocating contact between the optocoupler and the six detection areas, the vertical position of the present utility model with respect to the horizontal plane can be located. And when the detection wheel rotates one circle, the present utility model can detect six output signals. Thus, the present utility model can multi-locate the position perpendicular to the horizontal plane, achieving the purpose of improving the detection accuracy. At the same time, the overall structure is compact, occupies little space, and is convenient for carrying and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2Rear view of the detection wheel of the present utility model;

[0019] Figure 3 Exploded view of the side plate of the present utility model;

[0020] Figure 4 Rear view of the side plate of the present utility model;

[0021] Figure 5 Exploded view of the detection wheel of the present utility model.

[0022] Reference numerals are: 1, detection wheel; 2, side plate; 3, annular groove; 4, blade; 5, detection area; 6, insertion hole; 7, optocoupler; 8, encoder circuit board; 9, buffer groove; 10, mounting groove; 11, piezoelectric ceramic sheet; 12, nylon buffer pad; 13, copper sheet; 14, mounting hole; 15, mounting post; 16, top hub; 17, auxiliary hole. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Referring to the attached drawings of the specification Figures 1-5 , the present utility model provides a sensor positioning device for measuring concrete defects based on impact echo, including a detection wheel 1, and six groups of sensing components and detection components for concrete defect detection are arranged outside the detection wheel 1;

[0025] As Figures 1-4 shown, the detection component includes a side plate 2 provided at the front end of the detection wheel 1, and an annular groove 3 is formed on the side close to the detection wheel 1 at the rear end of the side plate 2. Six blades 4 are arranged inside the annular groove 3, and a detection area 5 is arranged between two adjacent blades 4; an insertion hole 6 communicating with the annular groove 3 is formed outside the side plate 2, an optocoupler 7 is arranged inside the insertion hole 6, and the optocoupler 7 is sleeved outside one of the detection areas 5; an encoder circuit board 8 is installed on the front side of the side plate 2, and the front end of the optocoupler 7 extends into the encoder circuit board 8. By the corresponding contact between the optocoupler 7 and the detection area 5, the position perpendicular to the horizontal plane can be detected and the detection signal can be output.

[0026] As Figures 1-5As shown, each group of sensing components includes a buffer groove 9 and a mounting groove 10 that are opened outside the detection wheel 1 and communicate with each other. The mounting groove 10 is arranged on the side of the buffer groove 9 close to the detection wheel 1. A piezoelectric ceramic sheet 11 is installed inside the mounting groove 10. A nylon buffer pad 12 is arranged inside the buffer groove 9, and a copper sheet 13 is arranged on the side of the nylon buffer pad 12 close to the corresponding piezoelectric ceramic sheet 11. The six detection areas 5 respectively correspond to the six piezoelectric ceramic sheets 11. By the contact between the copper sheet 13 on the nylon buffer pad 12 and the piezoelectric ceramic sheet 11, the vertical position with respect to the horizontal plane can be detected. The arrangement of the six piezoelectric ceramic sheets 11 enables the present invention to detect six output signals, achieving the effect of multi-party positioning and the purpose of improving detection accuracy.

[0027] As Figure 3 and 4 shown, a mounting hole 14 is opened inside the side plate 2, and a mounting column 15 is movably connected inside the mounting hole 14 through a bearing. The rear end of the mounting column 15 is fixed to the front end of the detection wheel 1. The mounting column 15 is located between the six blades 4. Through the movable connection between the mounting column 15 and the side plate 2, the detection wheel 1 can rotate by means of the mounting column 15, achieving the effect of multi-directional detection.

[0028] As Figures 1-4 shown, a top hub 16 is installed at the rear side of the end of the side plate 2 away from the detection wheel 1. Through the setting of the top hub 16, it is convenient to install and fix the side plate 2, ensuring the support stability of the side plate 2 for the detection wheel 1.

[0029] As Figure 2 and 4 shown, two mounting hole slots 18 are opened at the rear side of the top hub 16. The two mounting hole slots 18 are symmetrically distributed about the central axis of the top hub 16. Through the setting of the mounting hole slots 18, it is convenient for the staff to install the detection wheel 1 to a suitable position for detection use.

[0030] As Figure 2 and 4 shown, an auxiliary hole 17 is opened at the rear side of the detection wheel 1. Through the setting of the auxiliary hole 17, it is convenient to install the detection wheel 1 to a suitable device, or install the device to the detection wheel 1, thereby improving the convenience of installing additional devices.

[0031] The six detection areas 5 between the six blades 4 respectively correspond to the six piezoelectric ceramic sheets 11. When the detection area 5 corresponds to the optocoupler 7 during the rotation of the detection wheel 1, the optocoupler 7 is triggered and outputs a signal. When the output signal is detected, the verticality of the present invention with respect to the horizontal plane can be positioned. When the detection wheel 1 rotates one circle, six output signals can be detected. Thus, the present invention can multi-party locate the position perpendicular to the horizontal plane, thereby improving detection accuracy.

[0032] Finally, the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sensor positioning device for measuring concrete defects based on impact echo, characterized in that: It comprises a detection wheel (1), the detection wheel (1) is provided with six sets of sensor components and detection components for concrete defect detection on the outside; The detection assembly comprises a side plate (2) arranged at the front end of the detection wheel (1), and a ring groove (3) is provided on a side of the rear end of the side plate (2) close to the detection wheel (1), six blades (4) are arranged inside the ring groove (3), and a detection area (5) is provided between two adjacent blades (4); The side plate (2) is provided with an embedding hole (6) on the outside thereof and is connected to the annular groove (3); an optical coupler (7) is provided inside the embedding hole (6), and the optical coupler (7) is sleeved outside one of the detection areas (5); An encoder circuit board (8) is installed on the front side of the side plate (2), and the front end of the optical coupler (7) extends into the interior of the encoder circuit board (8).

2. A sensor positioning device for measuring concrete defects based on impact echo according to claim 1, characterized in that: Each set of sensor components comprises a buffer groove (9) and a mounting groove (10) which are opened outside the detection wheel (1) and are connected to each other. The mounting groove (10) is arranged on a side of the buffer groove (9) close to the detection wheel (1). A piezoelectric ceramic sheet (11) is installed inside the mounting groove (10). A nylon buffer pad (12) is arranged inside the buffer groove (9), and a copper sheet (13) is arranged on a side of the nylon buffer pad (12) close to the corresponding piezoelectric ceramic sheet (11). The six detection areas (5) correspond to six piezoelectric ceramic sheets (11) respectively.

3. The sensor positioning device for measuring concrete defects based on impact echo according to claim 1, characterized in that: The side plate (2) is provided with a mounting hole (14) inside, and a mounting column (15) is movably connected inside the mounting hole (14) via a bearing, the rear end of the mounting column (15) is fixed to the front end of the detection wheel (1), and the mounting column (15) is located between the six blades (4).

4. The sensor positioning device for measuring concrete defects based on impact echo according to claim 1, characterized in that: A top hub (16) is installed on the rear side of one end of the side plate (2) away from the detection wheel (1).

5. The sensor positioning device for measuring concrete defects based on impact echo according to claim 4, characterized in that: The rear side of the top hub (16) is provided with two mounting hole slots (18), and the two mounting hole slots (18) are symmetrically distributed about the central axis of the top hub (16).

6. The sensor positioning device for measuring concrete defects based on impact echo according to claim 1, characterized in that: An auxiliary hole (17) is provided on the rear side of the detection wheel (1).

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