CN210221357U - Embedded type stress sensor fixing device - Google Patents
Embedded type stress sensor fixing device Download PDFInfo
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- CN210221357U CN210221357U CN201921329255.7U CN201921329255U CN210221357U CN 210221357 U CN210221357 U CN 210221357U CN 201921329255 U CN201921329255 U CN 201921329255U CN 210221357 U CN210221357 U CN 210221357U
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Abstract
The utility model provides an bury formula stress sensor fixing device, including resonant mode stress sensor, bracing piece, fixed cuff, bolt, two fixed block sides of stress sensor or bottom set up the recess, and fixed cuff both ends are equipped with the bolt hole, and the bracing piece links together through fixed cuff with stress sensor, and the bolt is through the fixed cuff of bolt hole fastening that sets up, and fixed cuff is walked around fixed block bottom nestification in the recess of fixed block, can not take place relative slip. The utility model provides a pair of bury formula stress sensor fixing device has avoided the impact off normal and damage that cause the sensor when concreting, can detect the inside stress variation of concrete in the work progress effectively, the safety of control work progress, and this kind of fixing device simple structure, simple to operate measures accurately, and the range of application is wide.
Description
Technical Field
The utility model relates to a civil engineering field especially relates to an bury formula stress sensor fixing device.
Background
The concrete strain gauge is an embedded type stress sensor, namely, the concrete strain gauge is embedded in concrete structures such as bridges, railways, tunnels, buildings and the like and is used for detecting whether the stress in the structures is within a safe range in the building process.
The existing installation method of the stress sensor is to bind the sensor on a steel bar by adopting a binding wire, so as to prevent the impact force from deviating the sensor when concrete is poured, and the method has certain defects: 1. the sensor is inconvenient to operate, when the sensor is installed, one person is required to fix the sensor on the steel bar, and the other person is required to perform binding, but the distance between the sensor and the steel bar is small, the binding operation surface is narrow, the field operation is not facilitated, and the operation speed and the installation precision are influenced; 2. the sensor is difficult to position, is fixed by adopting an iron wire, has poor stability, still has impact on the sensor when concrete is poured, causes the deviation and the damage of the sensor, and cannot detect effective stress data; 3. the measurement accuracy is low, generally will prick the silk and be fixed in sensor both ends, has the disturbance to later stage stress measurement, influences measurement accuracy.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings of the prior art, an object of the present invention is to provide an embedded stress sensor fixing device for solving the problems of difficult installation, difficult positioning and low monitoring precision of the stress sensor in the prior art.
In order to realize above-mentioned purpose and other relevant purposes, the utility model provides an bury formula stress sensor fixing device, including resonant mode stress sensor, bracing piece, fixed cuff, bolt, the stress sensor both ends fixedly connected with fixed block respectively, be provided with the recess on fixed block bottom and/or the at least side, the bracing piece is located stress sensor top and syntropy extend, fixed cuff is banded, and both ends are provided with the bolt hole, fixed cuff is followed to center on under the fixed block in the direction the fixed block with the bracing piece and with the nested cooperation of recess, the bolt passes through the bolt hole fastening that fixed cuff both ends set up fixed cuff, and will the bracing piece with stress sensor links together.
Preferably, the opposite side surfaces of at least one of the fixing blocks are provided with symmetrical grooves.
Preferably, the support rod is made of steel bars.
Preferably, the fixed hoop is made of soft thin steel sheets.
Preferably, at least one end of the fixing hoop is provided with a plurality of bolt holes which are arranged along the length direction of the fixing hoop.
Preferably, the groove at the bottom of the fixing block is communicated with the groove at the side surface.
Preferably, the groove width is 0-0.5mm wider than the width of the retainer ferrule.
Preferably, the groove width is 0.2mm wider than the retainer ferrule width.
As described above, the utility model provides a pair of bury formula stress sensor fixing device has following beneficial effect: the supporting rod and the stress sensor are preliminarily fixed through the fixed hoop, then the supporting rod and the stress sensor are firmly connected through the bolt, the impact deviation and the damage to the sensor when concrete pouring are avoided, the structure is reasonable and simple, the operation is convenient, the installation is stable, and inaccurate measuring results caused by sensor deviation cannot occur.
Drawings
Fig. 1 is a schematic structural diagram of an embedded stress sensor fixing device according to an embodiment of the present invention.
Fig. 2 is a partially exploded view of the fastening device of fig. 1.
Description of the element reference numerals
1 stress sensor
2 fixed block
3 support rod
4 fixed hoop
5 bolt
21 groove
41 bolt hole
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relationship or adjustment of the sizes should still fall within the scope of the present invention without affecting the functions and the achievable purposes of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Please refer to fig. 1-2. The utility model provides an bury formula stress sensor fixing device, including resonant mode stress sensor 1, bracing piece 3, fixed cuff 4, bolt 5, 1 both ends difference fixedly connected with fixed block 2 of stress sensor (fixed block is fixed respectively at current stress sensor's both ends promptly), the side of fixed block 2 (with stress sensor extending direction syntropy) is equipped with vertical recess 21, vertical recess 21 is at least for setting up one on the side of fixed block, preferred both sides face all sets up many and mutual symmetry, more preferably set up the bottom recess that link up the vertical recess 11 of both sides face in the fixed block bottom, the recess also can only set up in the fixed block bottom in other embodiments, perhaps the bottom recess needn't certainly link up with vertical recess. The fixing hoop 4 is in a belt shape, bolt holes 41 are arranged at two ends of the fixing hoop, and the hole diameter of each bolt hole 41 is matched with the size of each bolt 5. The supporting rod 3 is connected with the stress sensor 1 through the fixing hoop 4, the fixing hoop 4 surrounds the fixing block and the supporting rod 3 located above the fixing block from the lower direction of the stress sensor fixing block 2, the fixing hoop 4 is in nested fit with the groove 21, the bolt 5 fastens the fixing hoop 4 through the bolt holes 41 arranged at the two ends, and the two ends of the supporting rod 3 are fixedly connected with the fixing block 2 of the stress sensor 1 through the fixing hoop 4. One end or two ends of the fixed hoop 4 can be provided with a plurality of bolt holes 41 arranged along the length of the fixed hoop 4, the fixed hoop 4 is suitable for support rods 3 with different sizes, and the support rods 3 can be firmly fixed with the stress sensor 1 by tightening the fixed hoop 4 through bolts 5 according to the proper bolt holes 41 selected by the diameter of the support rods 3 during installation. In this embodiment: the fixed block 2 of the stress sensor is of a horseshoe-shaped structure, the support rod 3 adopts a steel bar, and the steel bar can be a steel bar of a concrete structure or a steel bar which is independently arranged for fixing the sensor; the fixed hoop 4 is made of a soft thin steel sheet, two ends of the fixed hoop 4 are respectively provided with 3 opposite bolt holes 41, the side faces of two fixed blocks 2 of the stress sensor 1 are respectively provided with 3 symmetrical vertical grooves, correspondingly, the number of the fixed hoop 4 is 6, the width of the preferable groove is 0-0.5mm wider than that of the soft thin steel sheet of the fixed hoop, and the width of the more preferable groove is 0.2mm wider than that of the steel sheet.
When the device is installed, firstly, the support rod 3 and the stress sensor 1 are preliminarily fixed through the fixing hoop 4, namely 6 fixing hoops 4 are respectively nested in 6 grooves of the left and right fixing blocks 2 of the stress sensor 1 and surround the upper part of the support rod 3, then proper bolt holes 41 are selected according to the diameter of the selected support rod 3, bolts 5 are respectively inserted into the corresponding bolt holes 41 to be screwed, when the selected support rod 3 is thick, the bolt hole 41 close to the upper end is selected, when the selected support rod 3 is thin, the bolt hole 41 close to the lower end is selected, the bolt hole 41 at the lowest end is selected as shown in figure 1, the arrangement ensures the fastening connection between the support rod 3 and the stress sensor 1, avoids the relative movement caused by the loose connection between the support rod 3 and the stress sensor 1, and simultaneously avoids the impact deviation caused to the stress sensor when concrete is poured, and the test is accurate.
To sum up, the utility model discloses an bury formula stress sensor fixing device fixes stress sensor on external carrier, avoids stress sensor's damage and position to take place the skew, and the change of inside stress in the effectual monitoring work progress controls the safety of work progress. The utility model discloses simple structure, convenient operation, application scope is wide. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. An embedded stress sensor fixing device is characterized in that: including resonant mode stress sensor, bracing piece, fixed cuff, bolt, the stress sensor both ends difference fixedly connected with fixed block, be provided with the recess on fixed block bottom and/or the at least side, the bracing piece is located stress sensor top and syntropy extend, fixed cuff is the banding, and both ends are provided with the bolt hole, fixed cuff follows around in the fixed block below the direction the fixed block with the bracing piece and with the nested cooperation of recess, the bolt passes through the bolt hole fastening that fixed cuff both ends set up fixed cuff, and will the bracing piece with stress sensor links together.
2. The embedded stress sensor fixture of claim 1, wherein: and symmetrical grooves are formed in the opposite side faces of at least one fixing block.
3. The embedded stress sensor fixture of claim 1, wherein: the support rod is made of steel bars.
4. The embedded stress sensor fixture of claim 1, wherein: the fixed hoop is made of a soft thin steel sheet.
5. The embedded stress sensor fixture of claim 1, wherein: at least one end of the fixing hoop is provided with a plurality of bolt holes which are arranged along the length direction of the fixing hoop.
6. The embedded stress sensor fixture of claim 1 or 2, wherein: the groove at the bottom of the fixing block is communicated with the groove at the side face.
7. The embedded stress sensor fixture of claim 1, wherein: the width of the groove is 0-0.5mm wider than the width of the fixed hoop.
8. The embedded stress sensor fixture of claim 7, wherein: the groove width is 0.2mm wider than the retainer ferrule width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921329255.7U CN210221357U (en) | 2019-08-16 | 2019-08-16 | Embedded type stress sensor fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921329255.7U CN210221357U (en) | 2019-08-16 | 2019-08-16 | Embedded type stress sensor fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210221357U true CN210221357U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921329255.7U Active CN210221357U (en) | 2019-08-16 | 2019-08-16 | Embedded type stress sensor fixing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237582A (en) * | 2021-04-12 | 2021-08-10 | 机械工业第九设计研究院有限公司 | Wall internal stress detection method and detection system for engineering acceptance |
-
2019
- 2019-08-16 CN CN201921329255.7U patent/CN210221357U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237582A (en) * | 2021-04-12 | 2021-08-10 | 机械工业第九设计研究院有限公司 | Wall internal stress detection method and detection system for engineering acceptance |
| CN113237582B (en) * | 2021-04-12 | 2022-11-11 | 机械工业第九设计研究院股份有限公司 | Wall internal stress detection method and detection system for engineering acceptance |
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