CN221199545U

CN221199545U - Reinforcing bar position detection device

Info

Publication number: CN221199545U
Application number: CN202322778131.XU
Authority: CN
Inventors: 陈威浩; 马锐; 李潇逸; 廖玉琳; 陈博能; 汪小莞; 吴恒; 董兆林
Original assignee: State Grid Corp of China SGCC; State Grid Chongqing Electric Power Co Ltd; Materials Branch of State Grid Chongqing Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Chongqing Electric Power Co Ltd; Materials Branch of State Grid Chongqing Electric Power Co Ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-06-21
Anticipated expiration: 2033-10-17

Abstract

The utility model discloses a steel bar position detection device, and relates to the technical field of steel bar position detection. This rebar position detection device includes: the upper shell is detachably connected to the upper surface of the lower shell, and a hollow shell structure is formed between the lower shell and the upper shell; the permanent magnet is fixedly connected to one end of the inner part of the lower shell; the detection plate is embedded into one end of the inner part of the upper shell, the detection plate is integrated with a Hall sensor array, and a PCB assembly is arranged in the shell structure. The main reinforcement of a certain section in the cement pole tower can be rapidly oriented and positioned, and the detection process is ensured to move along the main reinforcement in the reinforced concrete structure.

Description

Reinforcing bar position detection device

Technical Field

The utility model relates to the technical field of steel bar position detection, in particular to a steel bar position detection device.

Background

The detection methods of the materials and the states of the steel bars in the reinforced concrete structure are numerous, and the damage condition of the structure is divided according to the detection process, and two main types of damage detection and nondestructive detection exist; nondestructive testing is classified according to the principle of detection, and there are infrared scanning, ray scanning, and electromagnetic induction.

The reinforced bar magnetic induction detection method is to emit electromagnetic waves into the concrete by using a certain electromagnetic emitter, when the electromagnetic waves are subjected to the action of a reinforced bar structure in the concrete, a corresponding secondary induction magnetic field is generated, and the thickness of a reinforced bar protection layer in the concrete is analyzed by receiving the electromagnetic wave intensity of the generated secondary induction magnetic field. The magnetic field coil generates a high pulse primary electromagnetic field in the concrete to be inspected, which will induce a secondary electromagnetic field when encountering a metal object in the concrete. The pulse gap of the electromagnetic field generated by each magnetic field coil causes the attenuation of the electromagnetic field of the second time, so that the voltage of the induction coil is changed.

At present, an independent receiving detection end (Hall sensor) is generally adopted, so that the trend of a section of steel bar is difficult to be positioned in a detection mode of the independent Hall sensor, and when the independent Hall sensor moves and deflects to deviate from the steel bar, the position of the independent Hall sensor deviates from the steel bar easily due to the deviation of the moving direction, so that the detection result is influenced.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a steel bar position detection device, which solves the problems that the detection mode of an independent Hall sensor is easy to deviate from the position of a steel bar and the detection result is influenced.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: a rebar position detection device comprising:

The upper shell is detachably connected to the upper surface of the lower shell, and a hollow shell structure is formed between the lower shell and the upper shell;

the permanent magnet is fixedly connected to one end of the inner part of the lower shell;

The detection board is embedded into one end of the inner part of the upper shell, a Hall sensor array is integrated on the detection board, a PCB assembly is arranged in the shell structure, the PCB assembly comprises a driving circuit PCB, a detection circuit PCB and a control circuit PCB, the Hall sensor array is electrically connected with the detection circuit PCB, and the detection circuit PCB is electrically connected with the driving circuit PCB and the control circuit PCB;

The Hall sensor array comprises nine Hall sensors which are arranged in a nine-grid shape, and the permanent magnet is opposite to the position of the Hall sensor in the middle of the Hall sensor array.

Preferably, the shell structure is made of aluminum alloy.

Preferably, one end inside the lower shell is provided with a limiting blocking wall, and the permanent magnet is supported between the limiting blocking wall and the side wall of the inner cavity of the lower shell.

Preferably, a limiting support plate is arranged between two opposite side walls of the inner cavity of the lower shell, the limiting support plate is parallel to the limiting retaining wall, and one end, far away from the inner wall of the lower shell, of the limiting support plate is supported on the outer wall of the permanent magnet.

Preferably, the side wall of the lower shell, the limiting retaining wall and the bottom of one of the limiting support plates are provided with wiring holes, and the wiring holes on the lower shell, the limiting retaining wall and the limiting support plate are corresponding to each other.

Preferably, limit side stoppers are arranged on two sides of the inner part of the upper shell, the detection plate is I-shaped, and two sides of the detection plate are respectively clamped at the limit side stoppers on two sides.

Preferably, the driving circuit PCB board, the detection circuit PCB board and the control circuit PCB board are sequentially and longitudinally overlapped, positioning grooves are formed in the side edges of the driving circuit PCB board, the detection circuit PCB board and the control circuit PCB board, positioning rods are inserted into the positioning grooves, inserting seats are formed in the lower shell and the upper shell, and the end parts of the positioning rods are inserted into the inserting seats.

Preferably, the locating rod comprises a rod body, a plurality of locating rings are sleeved on the outer wall of the rod body, two adjacent locating rings are clamped on the upper side and the lower side of the driving circuit PCB, the detecting circuit PCB and the control circuit PCB, two ends of the locating rod are plug connectors, and the plug connectors are plugged in the plug connector.

(III) beneficial effects

Compared with the prior art, the utility model provides a steel bar position detection device, which has at least the following beneficial effects:

The main reinforcement of a certain section in the cement pole tower can be rapidly oriented and positioned, and the detection process is ensured to move along the main reinforcement in the reinforced concrete structure.

The Hall sensor array is composed of eight peripheral edge Hall sensors and a middle Hall sensor, the nine edge Hall sensors form a rectangular structure, and the middle Hall sensor is positioned at the most central position of the nine edge Hall sensors.

The Hall sensor array collects magnetic field intensity values of nine different spatial positions at the same time, so that collected data has diversity. The center position and the angle deflection condition of the steel bar can be judged according to the comparison of the magnetic field intensity acquired by the Hall sensor at the edge.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the lower housing of the present utility model;

FIG. 3 is a schematic view showing the internal structure of the upper housing of the present utility model;

FIG. 4 is a schematic diagram of the structure of the detection plate and the Hall sensor array of the present utility model;

fig. 5 is a schematic structural view of the positioning rod of the present utility model.

In the figure: 1. a lower housing; 2. an upper housing; 3. limiting retaining walls; 4. a limit support plate; 5. a permanent magnet; 6. a wiring hole; 7. a limit side stopper; 8. a detection plate; 9. a hall sensor array; 10. a socket; 11. a positioning rod; 111. a rod body; 112. a positioning ring; 113. a plug; 12. a PCB assembly; 13. and a positioning groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

Referring to fig. 1-5, the present utility model provides a technical solution: a rebar position detection device comprising: the device comprises a lower shell 1, an upper shell 2 detachably connected to the upper surface of the lower shell 1, a permanent magnet 5 and a detection plate 8;

The novel permanent magnet type electric motor is characterized in that a hollow shell structure is formed between the lower shell 1 and the upper shell 2, the permanent magnet 5 is fixedly connected to one end inside the lower shell 1, the detection plate 8 is embedded into one end inside the upper shell 2, the detection plate 8 is integrated with the Hall sensor array 9, the inside of the shell structure is provided with the PCB assembly 12, the PCB assembly 12 comprises a driving circuit PCB, a detection circuit PCB and a control circuit PCB, the Hall sensor array 9 is electrically connected with the detection circuit PCB, the detection circuit PCB is electrically connected with the driving circuit PCB and the control circuit PCB, the Hall sensor array 9 comprises nine Hall sensors which are arranged in a nine-grid shape, and the permanent magnet 5 is opposite to the position of the Hall sensor in the middle of the Hall sensor array 9. The shell structure is made of aluminum alloy.

Analysis of the above: the control circuit PCB is used as a main control circuit to control the output of the drive circuit PCB and the detection circuit PCB, the drive circuit PCB drives the Hall sensor array 9 to work, and the detection circuit PCB detects and uploads the magnetic field intensity value acquired by the Hall sensor array 9 (the drive circuit PCB, the detection circuit PCB and the control circuit PCB all adopt the prior art and are not repeated here).

Based on the control of the PCB assembly 12, nine hall sensors are arranged in an array manner in fig. 4, and the hall sensors acquire magnetic field intensities at nine positions.

When the permanent magnet 5 (the present apparatus) is brought close to the test piece to be tested, a magnetic field (primary magnetic field H) is generated by the permanent magnet 5, and a current-eddy current is induced in the test piece to be tested by the primary magnetic field H. The eddy currents also generate an additional magnetic field (secondary magnetic field Ns) in and around the test piece under test. The direction of this secondary magnetic field Ns is determined according to lenz's law, opposite to the direction of the primary magnetic field H. And the two magnetic fields are superimposed. The coil magnetic field is weakened by the reaction magnetic field generated by the eddy current, and the diameter of the steel bar is judged based on the change proportion of the weakening magnetic field.

Nine Hall sensors can collect a plurality of steel bar parameter detection characteristic values at the same time, can collect more diversified signals, and are used for measuring and recording magnetic induction intensity and analyzing the corrosion condition of main bars inside reinforced concrete; nine hall sensors can be used for rapidly carrying out trend positioning on a main reinforcement of a certain section in a cement pole tower, and the detection process is ensured to move along the main reinforcement in a reinforced concrete structure.

Embodiment two:

Referring to fig. 1-5, the present utility model provides a technical solution based on the first embodiment: one end inside the lower shell 1 is provided with a limiting retaining wall 3, and the permanent magnet 5 is supported between the limiting retaining wall 3 and the side wall of the inner cavity of the lower shell 1. A limiting support plate 4 is arranged between two opposite side walls of the inner cavity of the lower shell 1, the limiting support plate 4 is parallel to the limiting baffle wall 3, and one end, far away from the inner wall of the lower shell 1, of the limiting support plate 4 is supported on the outer wall of the permanent magnet 5. The side wall of the lower shell 1, the limiting baffle wall 3 and the bottom of one of the limiting support plates 4 are provided with wiring holes 6, and the positions of the wiring holes 6 on the lower shell 1, the limiting baffle wall 3 and the limiting support plates 4 are corresponding.

Analysis of the above: as shown in fig. 2, the limiting blocking wall 3 is blocked on the right side of the permanent magnet 5, two limiting supporting plates 4 are supported on the front side and the rear side of the permanent magnet 5, and four positions of the outer wall of the permanent magnet 5 are supported and limited, so that the permanent magnet 5 is stably supported. The routing holes 6 are provided for transmitting the wires of the PCB assembly 12 to the outside.

Embodiment III:

Referring to fig. 1-5, the present utility model provides a technical solution based on the first embodiment: the inside both sides of last casing 2 all are provided with limit-stop 7, pick-up plate 8 is the I-shaped shape, the both sides of pick-up plate 8 joint respectively in the limit-stop 7 department of both sides.

Analysis of the above: the limit side stop 7 is arranged, the limit to the detection plate 8 is convenient, the side edge of the detection plate 8 is correspondingly clamped and matched with the limit side stop 7, and the detection plate 8 and the upper shell 2 cannot move relatively, so that the relative positions among the detection plate 8, the Hall sensor and the permanent magnet 5 are kept unchanged.

Embodiment four:

Referring to fig. 1-5, the present utility model provides a technical solution based on the first embodiment: the driving circuit PCB, the detection circuit PCB and the control circuit PCB are sequentially and longitudinally overlapped, positioning grooves 13 are formed in the sides of the driving circuit PCB, the detection circuit PCB and the control circuit PCB, positioning rods 11 are inserted into the positioning grooves 13, inserting seats 10 are arranged in the lower shell 1 and the upper shell 2, and the end parts of the positioning rods 11 are inserted into the inserting seats 10. The locating rod 11 comprises a rod body 111, a plurality of locating rings 112 are sleeved on the outer wall of the rod body 111, two adjacent locating rings 112 are clamped on the upper side and the lower side of a driving circuit PCB, a detecting circuit PCB and a control circuit PCB, two ends of the locating rod 11 are respectively provided with a plug connector 113, and the plug connectors 113 are plugged in the plug connector 10.

Analysis of the above: the rod body 111 is attached to the positioning groove 13, and the positioning ring 112 clamps the driving circuit PCB, the detecting circuit PCB and the control circuit PCB from the upper side and the lower side, so that the relative distances among the driving circuit PCB, the detecting circuit PCB and the control circuit PCB are kept. And then the plug 113 is plugged in the plug socket 10, and under the clamping and matching actions of the lower shell 1 and the upper shell 2, the driving circuit PCB, the detection circuit PCB and the control circuit PCB are kept stable with the shell structure.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A rebar position detection device, comprising:

The upper shell (2) is detachably connected to the upper surface of the lower shell (1), and a hollow shell structure is formed between the lower shell (1) and the upper shell (2);

the permanent magnet (5), the said permanent magnet (5) is fixedly connected to one end in the inferior valve body (1);

The detection board (8), the detection board (8) is embedded into one end of the inside of the upper shell (2), the detection board (8) is integrated with a Hall sensor array (9), a PCB (printed circuit board) assembly (12) is arranged in the shell structure, the PCB assembly (12) comprises a driving circuit PCB, a detection circuit PCB and a control circuit PCB, the Hall sensor array (9) is electrically connected with the detection circuit PCB, and the detection circuit PCB is electrically connected with the driving circuit PCB and the control circuit PCB;

The Hall sensor array (9) comprises nine Hall sensors which are arranged in a nine-grid shape, and the permanent magnet (5) is opposite to the position of the Hall sensor in the middle of the Hall sensor array (9).

2. A rebar position detecting device according to claim 1, wherein: the shell structure is made of aluminum alloy.

3. A rebar position detecting device according to claim 1, wherein: one end inside the lower shell (1) is provided with a limiting retaining wall (3), and the permanent magnet (5) is supported between the limiting retaining wall (3) and the side wall of the inner cavity of the lower shell (1).

4. A rebar position detecting device according to claim 1, wherein: a limiting support plate (4) is arranged between two opposite side walls of the inner cavity of the lower shell (1), the limiting support plate (4) is parallel to the limiting retaining wall (3), and one end, far away from the inner wall of the lower shell (1), of the limiting support plate (4) is supported on the outer wall of the permanent magnet (5).

5. The rebar position detecting device of claim 4, wherein: the side wall of the lower shell (1), the limiting retaining wall (3) and the bottom of one of the limiting support plates (4) are provided with wiring holes (6), and the positions of the wiring holes (6) on the lower shell (1), the limiting retaining wall (3) and the limiting support plate (4) are corresponding.

6. A rebar position detecting device according to claim 1, wherein: limiting side stop blocks (7) are arranged on two sides of the inner portion of the upper shell (2), the detection plate (8) is in an I shape, and two sides of the detection plate (8) are respectively clamped at the limiting side stop blocks (7) on two sides.

7. A rebar position detecting device according to claim 1, wherein: the novel electric power socket comprises a driving circuit PCB, a detecting circuit PCB and a control circuit PCB, wherein the driving circuit PCB, the detecting circuit PCB and the control circuit PCB are sequentially and longitudinally overlapped, a positioning groove (13) is formed in the side edge of the driving circuit PCB, the side edge of the detecting circuit PCB and the side edge of the control circuit PCB, a positioning rod (11) is inserted into the positioning groove (13), plug-in sockets (10) are respectively arranged inside a lower shell (1) and an upper shell (2), and the end parts of the positioning rods (11) are plugged in the plug-in sockets (10).

8. The rebar position detecting device of claim 7, wherein: the locating rod (11) comprises a rod body (111), a plurality of locating rings (112) are sleeved on the outer wall of the rod body (111), two adjacent locating rings (112) are clamped on the upper side and the lower side of a driving circuit PCB, a detecting circuit PCB and a control circuit PCB, two ends of the locating rod (11) are plug connectors (113), and the plug connectors (113) are plugged in a plug socket (10).