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CN113466935B - Trigger type detection device for deformation threshold detection and detection method thereof - Google Patents

Trigger type detection device for deformation threshold detection and detection method thereof Download PDF

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Publication number
CN113466935B
CN113466935B CN202110736069.0A CN202110736069A CN113466935B CN 113466935 B CN113466935 B CN 113466935B CN 202110736069 A CN202110736069 A CN 202110736069A CN 113466935 B CN113466935 B CN 113466935B
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piece
metal contact
insulating
containing box
deformation
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CN113466935A (en
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陈越时
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China Construction Eighth Engineering Division Co Ltd
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China Construction Eighth Engineering Division Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28Processing seismic data, e.g. for interpretation or for event detection

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention discloses a trigger type detection device for detecting deformation threshold and a detection method thereof, wherein the device comprises the following components: a fixing member; the triggering assembly comprises a containing box, two metal contact pieces and an insulating piece, wherein the containing box is arranged opposite to the fixing piece, the two metal contact pieces and the insulating piece are elastically installed in the containing box, the two metal contact pieces are respectively pressed against two opposite sides of the insulating piece, and an inserting piece opening aligned to the insulating piece is formed in the side wall of the containing box; the two metal contact pieces are respectively connected with the wireless radio frequency tag through wires; and the first end of the traction wire is connected with the fixing piece, and the second end of the traction wire is arranged on the inserting opening in a penetrating way and is connected with the insulating sheet. The method solves the problems of time and labor waste and low efficiency of the traditional detection method for the damage of the building components.

Description

Trigger type detection device for deformation threshold detection and detection method thereof
Technical Field
The invention relates to the technical field of building construction, in particular to a trigger type detection device and a detection method for deformation threshold detection.
Background
The building structure is affected by an earthquake after which damage detection is required. While most of the building elements are hidden behind the coating or exterior wall. The traditional detection method generally removes the shielding object on the member to be detected and then detects the member to be detected, and the detection is time-consuming and labor-consuming, high in cost and low in efficiency.
Disclosure of Invention
In order to overcome the defects existing in the prior art, a trigger type detection device and a detection method for detecting a deformation threshold are provided, so that the problems that a traditional detection method for building member damage is time-consuming and labor-consuming and is low in efficiency are solved.
To achieve the above object, there is provided a trigger type detection device for deformation threshold detection, including:
A fixing member;
The triggering assembly comprises a containing box, two metal contact pieces and an insulating piece, wherein the containing box is arranged opposite to the fixing piece, the two metal contact pieces and the insulating piece are elastically installed in the containing box, the two metal contact pieces are respectively pressed against two opposite sides of the insulating piece, and an inserting piece opening aligned to the insulating piece is formed in the side wall of the containing box;
the two metal contact pieces are respectively connected with the wireless radio frequency tag through wires; and
The first end of the traction wire is connected to the fixing piece, the second end of the traction wire penetrates through the inserting opening and is connected to the insulating sheet, after the distance between the fixing piece and the accommodating box is enlarged, the traction wire pulls the insulating sheet to separate from the two metal contact sheets through the inserting opening, and the two metal contact sheets are contacted to enable the wireless radio frequency tag to be short-circuited and lose efficacy.
Further, an elastic piece is connected between the metal contact piece and the inner side of the side wall of the accommodating box.
Further, the elastic piece is a spring.
Further, the metal contact piece and the insulating piece are respectively circular, the metal contact piece and the insulating piece are coaxially arranged, and the outer diameter of the insulating piece is larger than that of the metal contact piece.
Further, the outer edge of the insulating sheet is formed with a conductive flange, and the conductive flange is arranged in a circle along the circumferential direction of the insulating sheet.
The invention provides a detection method of a trigger type detection device for deformation threshold detection, which comprises the following steps:
Fixing a fixing piece and a containing box on a member to be tested, so that the fixing piece and the containing box are oppositely arranged along the horizontal direction, and an inserting port of the containing box is aligned with the fixing piece and a traction wire for tensioning;
After the member to be tested is affected by an earthquake, the wireless radio frequency tag is read, if the wireless radio frequency tag cannot be read, the member to be tested is judged to generate axial elongation deformation or shearing deformation and is in a damaged state, and if the wireless radio frequency tag can be read, the member to be tested is judged to not generate axial elongation deformation or shearing deformation and is in a normal state.
The triggering type detection device for detecting the deformation threshold has the advantages that after the component to be detected is influenced by an earthquake to deform, namely, after the component to be detected is subjected to axial (horizontal) elongation deformation or shearing deformation, the distance between the fixing piece and the accommodating box is enlarged, the traction wire pulls the insulating piece to separate from the two metal contact pieces through the inserting piece opening of the accommodating box, and the two metal contact pieces are in direct contact to cause the wireless radio frequency tag to be in short circuit and lose efficacy and not be read. When detecting the member to be detected, reading the wireless radio frequency tag by using a reader corresponding to the wireless radio frequency tag, and when the reader can read the wireless radio frequency tag, representing that the member to be detected does not produce axial elongation deformation or shearing deformation damage; otherwise, the member to be measured is subjected to axial (horizontal) elongation deformation or shear deformation damage. The reader can penetrate through the coating and the outer wall in a wireless manner, so that facilities such as external coating of a member to be detected and the like do not need to be removed and cleaned after earthquake, the damage state of the member to be detected (such as a steel connecting beam) can be detected remotely, and the detection is rapid and efficient, and is low in cost and high in efficiency.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
Fig. 1 is a schematic structural diagram of a trigger-type detection device for deformation threshold detection according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a trigger assembly according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a pulled state of an insulating sheet of a trigger type detection device for detecting a deformation threshold according to an embodiment of the present invention.
FIG. 4 is a schematic diagram of an axially elongated deformation of a member to be tested according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of shear deformation of a member to be tested according to an embodiment of the present invention.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In fig. 1 of the drawings, the insulating sheet is shown for clarity, so the accommodating case is not shown; in fig. 2 of the drawings, the structure of the housing box is shown completely for clarity of illustration of the insulating sheet.
Referring to fig. 1 to 5, the present invention provides a trigger type detection apparatus for deformation threshold detection, comprising: the device comprises a fixing piece 1, a triggering component 2, a wireless radio frequency tag 3 and a traction wire 4.
The fixing pieces are arranged opposite to the triggering component and are respectively and fixedly arranged on the component 5 to be tested.
The triggering component 2 comprises a containing box 21, two metal contact pieces 22 and an insulating piece 23.
The accommodating boxes 21 are disposed opposite to the fixing members 1 and fixedly mounted on the members 5 to be measured, respectively. The two metal contacts 22 are respectively elastically mounted inside the accommodating case 21. The two metal contact pieces 22 are respectively arranged on two opposite sides of the accommodating box. The insulating sheet 23 is arranged in the two metal contact sheets. The two metal contacts 22 are respectively pressed against two opposite sides of the insulating sheet 23. The side wall of the accommodating box 21 is provided with an inserting opening aligned with the insulating sheet 23. The size of the inserting opening is larger than that of the insulating sheet.
The two metal contacts 22 are respectively connected to the radio frequency tag 3 through wires 31.
The first end of the traction wire 4 is connected to the fixing piece 1, and the second end of the traction wire 4 is arranged at the inserting opening in a penetrating manner and is connected to the insulating sheet 23.
When the trigger type detection device for detecting the deformation threshold is used, the fixing piece and the accommodating box of the trigger assembly are fixedly arranged on the member to be detected, so that the fixing piece 1 and the accommodating box 21 are oppositely arranged along the horizontal direction, and the inserting piece opening of the accommodating box 21 is aligned with the fixing piece 1 and the traction wire to be tensioned.
Under the normal state of the member to be tested, namely when deformation is generated, as the insulating sheet is arranged between the two metal contact sheets, no contact is formed between the two metal contact sheets, and then the circuit structure of the wireless radio frequency tag operates normally and can be read.
After the member to be tested is deformed due to the influence of an earthquake, namely, after the member to be tested is subjected to axial (horizontal) elongation deformation or shearing deformation, the distance between the fixing piece and the accommodating box is enlarged, the traction wire pulls the insulating sheet to separate from the two metal contact sheets through the inserting sheet opening of the accommodating box, so that the two metal contact sheets are in direct contact to cause the wireless radio frequency tag to be in short circuit and lose efficacy, and the wireless radio frequency tag cannot be read.
When detecting the member to be detected, reading the wireless radio frequency tag by using a reader corresponding to the wireless radio frequency tag, and when the reader can read the wireless radio frequency tag, representing that the member to be detected does not produce axial elongation deformation or shearing deformation damage; otherwise, the member to be measured is subjected to axial (horizontal) elongation deformation or shear deformation damage.
The reader can penetrate through the coating and the outer wall after wireless reading, so that the damage state of the member to be detected (such as a steel connecting beam) can be detected remotely without removing and cleaning facilities such as an external coating of the member to be detected after earthquake. If no wireless radio frequency tag is detected at this location, it is indicated that a deformation exceeding the threshold value has occurred here.
The short circuit of the trigger type detection device for detecting the deformation threshold is formed by connecting two wires, a trigger component and a wireless radio frequency tag in series. The wire is used for connecting the wireless radio frequency tag and the trigger component, and the wire has larger amount of slack and cannot break when deformed.
In this embodiment, the outer edge of the insulating sheet is connected to a ring of conductive flanges. When the member to be tested is in a normal state, the insulating sheets disconnect the metal contact sheets at two sides, and the whole short circuit is in an open circuit state; when the deformation of the member to be tested exceeds a certain amount, the insulating sheet is pulled by the traction rope, so that the metal contacts on two sides are contacted through the conductive flanges on the outer edges of the insulating sheet, and the short circuit acts, so that the wireless radio frequency tag is invalid.
As a preferred embodiment, an elastic member is connected between the metal contact 22 and the inner side of the side wall of the housing case 21. The elastic piece is a spring.
The metal contact 22 and the insulating sheet 23 are respectively circular. The metal contact 22 is arranged coaxially with the insulating sheet 23. The outer diameter of the insulating sheet 23 is larger than the outer diameter of the metal contact 22.
The threshold setting method of the trigger type detection device for deformation threshold detection of the invention is as follows:
When measuring the axial deformation of the member to be measured, the distance between the fixing member and the receiving box of the trigger assembly is 1m, and if the deformation threshold is set to be 1%, the dislocation threshold between the insulating sheet and the metal contact sheet is 1cm, so that the radius of the insulating sheet (the width excluding the conductive flange) should be 1cm larger than that of the metal contact sheet, and at the same time, the inner diameter of the receiving box is adapted to the outer diameter of the insulating sheet, so that the insulating sheet is fixed. The fixing piece, the triggering component and the wireless radio frequency tag are fixed at proper positions on the member to be tested, and meanwhile, the connecting wire is ensured to be in a tensioning state.
After the distance between the fixing piece 1 and the accommodating box 21 is enlarged, the traction wire 4 pulls the insulating sheet 23 to separate from the two metal contact sheets 22 through the inserting sheet opening, and when the traction wire pulls the insulating sheet to displace within 1cm, the insulating sheet can still completely cover and isolate the two metal contact sheets.
When the traction wire pulls the insulating sheet to generate displacement larger than 1cm, the insulating sheet cannot completely cover and isolate the two metal contact sheets, so that the two metal contact sheets are pushed by the elastic piece, and the two metal contact sheets are partially contacted, so that the wireless radio frequency tag is short-circuited and fails.
Likewise, the trigger type detection device for detecting the deformation threshold can be utilized to measure the shear deformation of the member to be detected.
In addition, a plurality of sets of trigger type detection devices with different deformation thresholds can be installed on the same member to be detected, so that the deformation value range of the member to be detected can be judged.
The invention provides a detection method of a trigger type detection device for deformation threshold detection, which comprises the following steps:
S1: fixing the fixing piece 1 and the accommodating box 21 on the member 5 to be tested, so that the fixing piece 1 and the accommodating box 21 are oppositely arranged along the horizontal direction, and the inserting opening of the accommodating box 21 is aligned with the fixing piece 1 and the traction wire for tensioning;
S2: after the member to be measured 5 is affected by the earthquake, the wireless radio frequency tag 3 is read, if the wireless radio frequency tag 3 cannot be read, the member to be measured 5 is judged to be in a damaged state due to axial elongation deformation or shearing deformation, and if the wireless radio frequency tag 3 can be read, the member to be measured 5 is judged to be in a normal state due to no axial elongation deformation or shearing deformation.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.

Claims (2)

1. A triggered detection apparatus for deformation threshold detection, comprising:
A fixing member;
The triggering assembly comprises a containing box, two metal contact pieces and an insulating piece, wherein the containing box is arranged opposite to the fixing piece, the two metal contact pieces and the insulating piece are elastically installed in the containing box, the two metal contact pieces are respectively pressed against two opposite sides of the insulating piece, and an inserting piece opening aligned to the insulating piece is formed in the side wall of the containing box;
the two metal contact pieces are respectively connected with the wireless radio frequency tag through wires; and
The first end of the traction wire is connected with the fixing piece, the second end of the traction wire penetrates through the inserting opening and is connected with the insulating sheet, after the distance between the fixing piece and the accommodating box is enlarged, the traction wire pulls the insulating sheet to separate from the two metal contact sheets through the inserting opening, and the two metal contact sheets are contacted to enable the wireless radio frequency tag to be in short circuit and lose efficacy;
An elastic piece is connected between the metal contact piece and the inner side of the side wall of the accommodating box;
the elastic piece is a spring;
the metal contact piece and the insulating piece are respectively round, the metal contact piece and the insulating piece are coaxially arranged, and the outer diameter of the insulating piece is larger than that of the metal contact piece;
The outer fringe of insulating piece is formed with the conductive flange, the conductive flange sets up the round along the circumferencial direction of insulating piece.
2. A detection method of a trigger type detection device for deformation threshold detection as claimed in claim 1, comprising the steps of:
Fixing a fixing piece and a containing box on a member to be tested, so that the fixing piece and the containing box are oppositely arranged along the horizontal direction, and an inserting port of the containing box is aligned with the fixing piece and a traction wire for tensioning;
After the member to be tested is affected by an earthquake, the wireless radio frequency tag is read, if the wireless radio frequency tag cannot be read, the member to be tested is judged to generate axial elongation deformation or shearing deformation and is in a damaged state, and if the wireless radio frequency tag can be read, the member to be tested is judged to not generate axial elongation deformation or shearing deformation and is in a normal state.
CN202110736069.0A 2021-06-30 2021-06-30 Trigger type detection device for deformation threshold detection and detection method thereof Active CN113466935B (en)

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