阅读说明：本技术 用于变形阈值检测的触发式检测装置及其检测方法 (Trigger type detection device for deformation threshold detection and detection method thereof ) 是由 陈越时 于 2021-06-30 设计创作，主要内容包括：本发明公开了一种用于变形阈值检测的触发式检测装置及其检测方法,该装置包括：固定件；触发组件,包括与所述固定件相对设置的容置箱、弹性安装于所述容置箱的内部的两金属触片和绝缘片,两所述金属触片分别压抵于所述绝缘片的相对两侧,所述容置箱的侧壁开设有对准于所述绝缘片的插片口；无线射频标签,两所述金属触片分别通过导线连接于所述无线射频标签；以及牵引线,所述牵引线的第一端连接于所述固定件,所述牵引线的第二端穿设于所述插片口且连接于所述绝缘片。本发明解决了建筑构件损伤的传统检测方法费时费力且效率低的问题。(The invention discloses a trigger type detection device and a detection method thereof for deformation threshold detection, wherein the device comprises the following components: a fixing member; the trigger assembly comprises a containing box arranged opposite to the fixing piece, two metal contact sheets and an insulating sheet, wherein the two metal contact sheets are elastically arranged in the containing box, the two metal contact sheets are respectively pressed against two opposite sides of the insulating sheet, and the side wall of the containing box is provided with an insert opening aligned to the insulating sheet; the two metal contact pieces are respectively connected with the radio frequency tag through wires; and the first end of the traction wire is connected to the fixing piece, and the second end of the traction wire penetrates through the inserting piece opening and is connected to the insulating piece. The invention solves the problems of time and labor waste and low efficiency of the traditional detection method for the damage of the building member.)

1. A triggered detection device for deformation threshold detection, comprising:

a fixing member;

the trigger assembly comprises a containing box arranged opposite to the fixing piece, two metal contact sheets and an insulating sheet, wherein the two metal contact sheets are elastically arranged in the containing box, the two metal contact sheets are respectively pressed against two opposite sides of the insulating sheet, and the side wall of the containing box is provided with an insert opening aligned to the insulating sheet;

the two metal contact pieces are respectively connected with the 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 piece opening and is connected to the insulating piece, after the distance between the fixing piece and the containing box is enlarged, the traction wire pulls the insulating piece to be separated from the two metal contact pieces through the inserting piece opening, and the two metal contact pieces are in contact with each other to enable the wireless radio frequency tag to be short-circuited and fail.

2. The trigger-type detection device for detection of the deformation threshold as claimed in claim 1, wherein an elastic member is connected between the metal contact piece and the inner side of the side wall of the accommodating box.

3. The triggered detection device for detection of a deformation threshold according to claim 2, characterized in that said elastic element is a spring.

4. The trigger-type detection device for detection of deformation threshold of claim 2, wherein the metal contact piece and the insulation piece are circular respectively, the metal contact piece and the insulation piece are coaxially arranged, and the outer diameter of the insulation piece is larger than that of the metal contact piece.

5. The trigger type detection device for detecting the deformation threshold according to claim 4, wherein the outer edge of the insulation sheet is formed with a conductive flange, and the conductive flange is arranged in a circle along a circumferential direction of the insulation sheet.

6. A detection method of the trigger type detection device for deformation threshold detection according to any one of claims 1 to 5, characterized by comprising the following steps:

fixing a fixing piece and an accommodating box on a component to be tested, so that the fixing piece and the accommodating box are oppositely arranged along the horizontal direction, and an inserting piece opening of the accommodating box is aligned with the fixing piece and tensioned with a traction wire;

after the member to be detected is affected by an earthquake, reading the wireless radio frequency tag, if the wireless radio frequency tag cannot be read, judging that the member to be detected is in a damaged state due to axial extension deformation or shearing deformation, and if the wireless radio frequency tag can be read, judging that the member to be detected is in a normal state due to no axial extension deformation or shearing deformation.

Technical Field

The invention relates to the technical field of building construction, in particular to a trigger type detection device for detecting a deformation threshold value and a detection method thereof.

Background

The building structure is subjected to 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 component to be detected and then carries out detection, and the detection is time-consuming and labor-consuming, and has high cost and low efficiency.

Disclosure of Invention

In order to overcome the defects in the prior art, a trigger type detection device for detecting a deformation threshold value and a detection method thereof are provided so as to solve the problems of time and labor waste and low efficiency of the traditional detection method for detecting the damage of a building component.

To achieve the above object, there is provided a triggered detection device for deformation threshold detection, comprising:

a fixing member;

the trigger assembly comprises a containing box arranged opposite to the fixing piece, two metal contact sheets and an insulating sheet, wherein the two metal contact sheets are elastically arranged in the containing box, the two metal contact sheets are respectively pressed against two opposite sides of the insulating sheet, and the side wall of the containing box is provided with an insert opening aligned to the insulating sheet;

the two metal contact pieces are respectively connected with the 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 piece opening and is connected to the insulating piece, after the distance between the fixing piece and the containing box is enlarged, the traction wire pulls the insulating piece to be separated from the two metal contact pieces through the inserting piece opening, and the two metal contact pieces are in contact with each other to enable the wireless radio frequency tag to be short-circuited and fail.

Furthermore, 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 member is a spring.

Further, the metal contact with the insulating piece is circular respectively, the metal contact with the insulating piece coaxial setting, the external diameter of insulating piece is greater than the external diameter of metal contact.

Further, the outer fringe of insulating piece is formed with the electrically conductive edge of a wing, the electrically conductive edge of a wing is followed the circumferencial direction of insulating piece sets up the round.

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 an accommodating box on a component to be tested, so that the fixing piece and the accommodating box are oppositely arranged along the horizontal direction, and an inserting piece opening of the accommodating box is aligned with the fixing piece and tensioned with a traction wire;

after the member to be detected is affected by an earthquake, reading the wireless radio frequency tag, if the wireless radio frequency tag cannot be read, judging that the member to be detected is in a damaged state due to axial extension deformation or shearing deformation, and if the wireless radio frequency tag can be read, judging that the member to be detected is in a normal state due to no axial extension deformation or shearing deformation.

The triggering type detection device for detecting the deformation threshold has the advantages that after a component to be detected deforms under the influence of an earthquake, namely the component to be detected generates axial (horizontal direction) elongation deformation or shearing deformation, the distance between the fixing piece and the accommodating box is enlarged, the traction wire pulls the insulation piece to be separated from the two metal contact pieces through the insertion piece opening of the accommodating box, and the two metal contact pieces are in direct contact to enable the wireless radio frequency tag to be short-circuited and fail to be read. When the component to be detected is detected, the reader corresponding to the wireless radio frequency tag is used for reading the wireless radio frequency tag, and when the reader can read the wireless radio frequency tag, the axial elongation deformation or shearing deformation damage is not generated on the component to be detected; otherwise, it represents that the component to be tested generates axial (horizontal) elongation deformation or shear deformation damage. The reader wirelessly reads the wireless radio frequency tag and can pass through the coating and the outer wall, so that facilities such as an external coating of a component to be detected do not need to be detached and cleaned after an earthquake, the damage state of the component to be detected (such as a steel coupling beam) can be remotely detected, the detection is rapid and efficient, and the cost is low and the efficiency is high.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, 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 illustrating a pulled state of an insulation sheet of the trigger type detection apparatus for detecting a deformation threshold according to an embodiment of the present invention.

Fig. 4 is a schematic view illustrating an axial elongation deformation of a member to be measured according to an embodiment of the invention.

Fig. 5 is a schematic diagram of a component to be tested undergoing shear deformation according to an embodiment of the invention.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

In FIG. 1 of the drawings, the housing box is not shown for clarity of illustration of the insulating sheet; in fig. 2 of the drawings, the structure of the housing box is shown in its entirety for the sake of clarity of the insulating sheet.

Referring to fig. 1 to 5, the present invention provides a triggered detection device for deformation threshold detection, including: the fixing part 1, the trigger component 2, the wireless radio frequency tag 3 and the pull wire 4.

The fixing piece and the trigger component are arranged oppositely and are respectively and fixedly arranged on the component 5 to be detected.

The trigger assembly 2 includes a housing box 21, two metal contact pieces 22 and an insulation piece 23.

The accommodating box 21 is arranged opposite to the fixing member 1 and is respectively and fixedly mounted on the member to be measured 5. The two metal contact pieces 22 are respectively and elastically installed inside the accommodating box 21. The two metal contact pieces 22 are respectively arranged on two opposite sides of the accommodating box. The insulating sheet 23 is padded between the two metal contact sheets. The two metal contact plates 22 are respectively pressed against two opposite sides of the insulation plate 23. The side wall of the accommodating box 21 is provided with an inserting sheet opening aligned with the insulation sheet 23. The size of the insertion opening is larger than that of the insulation sheet.

The two metal contact pieces 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 member 1, and the second end of the traction wire 4 penetrates through the insertion opening and is connected to the insulation 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 a component to be detected, so that the fixing piece 1 and the accommodating box 21 are oppositely arranged along the horizontal direction, and the inserting sheet opening of the accommodating box 21 is aligned to the fixing piece 1 and tensioned with the pull wire.

When the component to be detected is in a normal state, namely is deformed, the insulating sheet pad is arranged between the two metal contact sheets, so that the two metal contact sheets are not in contact with each other, and the circuit structure of the radio frequency tag can normally operate and can be read.

After the component to be tested is deformed under the influence of an earthquake, namely the component to be tested generates axial (horizontal direction) elongation deformation or shearing deformation, the distance between the fixing part and the accommodating box is enlarged, the traction wire pulls the insulation sheet to be separated from the two metal contact sheets through the insertion sheet opening of the accommodating box, and the two metal contact sheets are in direct contact to enable the wireless radio frequency tag to be short-circuited and fail to be read.

When the component to be detected is detected, the reader corresponding to the wireless radio frequency tag is used for reading the wireless radio frequency tag, and when the reader can read the wireless radio frequency tag, the axial elongation deformation or shearing deformation damage is not generated on the component to be detected; otherwise, it represents that the component to be tested generates axial (horizontal) elongation deformation or shear deformation damage.

The reader can wirelessly read the wireless radio frequency tag and can penetrate through the coating and the outer wall, so that the damage state of the component to be detected (such as a steel coupling beam) can be remotely detected without dismantling and cleaning facilities such as an external coating of the component to be detected after an earthquake. If no RFID tag at this location is detected, it indicates that a deformation exceeding the threshold has occurred.

The short circuit of the trigger type detection device for detecting the deformation threshold is formed by connecting two leads, a trigger component and a wireless radio frequency tag in series. The wire is used for connecting the radio frequency identification tag and the trigger assembly, has larger amount of slack and can not be broken when being deformed.

In this embodiment, the outer edge of the insulation sheet is connected with a circle of conductive flange. When the component to be tested is in a normal state, the insulating sheet disconnects the metal contact pieces on the two sides, and the whole short circuit is in an open circuit state; when the deformation of the component to be tested exceeds a certain amount, the insulating sheet is pulled by the traction rope, so that the metal contacts on the two sides are contacted through the conductive flange on the outer edge of the insulating sheet, the short circuit plays a role, and the wireless radio frequency tag fails.

In a preferred embodiment, an elastic member is connected between the metal contact piece 22 and the inner side of the sidewall of the accommodating box 21. The elastic element is a spring.

The metal contact pieces 22 and the insulation pieces 23 are respectively circular. The metal contact pieces 22 are arranged coaxially with the insulating piece 23. The outer diameter of the insulating sheet 23 is larger than that of the metal contact pieces 22.

The threshold setting method of the trigger type detection device for detecting the deformation threshold comprises the following steps:

when measuring the axial deformation of the component that awaits measuring, the distance of mounting and the holding case of triggering the subassembly is 1m, if set for the deformation threshold value and be 1%, then the dislocation threshold value between insulating piece and the metal contact is 1cm, consequently, the radius (the width that does not contain the electrically conductive edge of a wing) of insulating piece should be 1cm more than the metal contact, and the internal diameter adaptation of holding case is in the external diameter of insulating piece simultaneously to the fixed of insulating piece. The fixing piece, the trigger assembly and the wireless radio frequency tag are fixed at proper positions on the component to be tested, and meanwhile, the connecting line is ensured to be in a tensioned state.

After the distance between the fixing part 1 and the accommodating box 21 is enlarged, the traction wire 4 pulls the insulation sheet 23 to be separated from the two metal contact sheets 22 through the insertion sheet opening, and when the traction wire pulls the insulation sheet to generate displacement within 1cm, the insulation sheet can still completely cover and isolate the two metal contact sheets.

When the traction line pulls the insulation sheet to generate displacement larger than 1cm, the insulation sheet can not completely cover and isolate the two metal contact sheets, so that the two metal contact sheets are pushed by the elastic piece, and the parts of the two metal contact sheets are contacted, so that the wireless radio frequency tag is short-circuited and fails.

Similarly, the triggered detection device for detecting the deformation threshold of the present invention can be used 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 threshold values can be installed on the same component to be detected, so that the deformation value range of the component 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 component 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 piece opening of the accommodating box 21 is aligned with the fixing piece 1 and the traction line is tensioned;

s2: after the member 5 to be measured is affected by an earthquake, the wireless radio frequency tag 3 is read, if the wireless radio frequency tag 3 cannot be read, it is determined that the member 5 to be measured is in a damaged state due to axial elongation deformation or shear deformation, and if the wireless radio frequency tag 3 can be read, it is determined that the member 5 to be measured is in a normal state without axial elongation deformation or shear deformation.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.