CN220871740U - Surface type strain gauge with wireless transmission function - Google Patents
Surface type strain gauge with wireless transmission function Download PDFInfo
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- CN220871740U CN220871740U CN202322793751.0U CN202322793751U CN220871740U CN 220871740 U CN220871740 U CN 220871740U CN 202322793751 U CN202322793751 U CN 202322793751U CN 220871740 U CN220871740 U CN 220871740U
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- strain gauge
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 50
- 238000004891 communication Methods 0.000 claims abstract description 28
- 230000001681 protective effect Effects 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 210000000078 claw Anatomy 0.000 claims abstract description 6
- 230000008054 signal transmission Effects 0.000 claims abstract description 5
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a surface strain gauge with a wireless transmission function, which comprises a strain gauge main body and a wireless transmission host, wherein the strain gauge main body is connected with the wireless transmission host through a communication cable, and the wireless transmission host is connected with an external computer end through wireless signal transmission; the strain gauge main body comprises a protective shell, a test bar, a clamp, a fixed claw, a sleeve and a screw, the wireless transmission host comprises a shell, a circuit board and an antenna, and a reinforcing sleeve is arranged at the joint of the communication cable and the shell. The utility model belongs to the technical field of strain gauges, and particularly provides a surface strain gauge with a wireless transmission function, which is used for solving the problems that a cable of the surface strain gauge is easy to damage and inconvenient to position in the prior art, and the problem that the cable is easy to damage due to complex wiring is avoided by replacing the existing wired detection system with a wireless transmission scheme.
Description
Technical Field
The utility model belongs to the technical field of strain gauges, and particularly relates to a surface strain gauge with a wireless transmission function.
Background
The bridge structure is overstressed and will be damaged. The surface strain gauge is arranged at the bottom of the pier stud or the girder span, and can be used for monitoring the stress change caused by bridge settlement. The principle of arranging the pier column, the capping beam and the girder stress measuring points is suitable for reflecting the internal force control section of the structure and accurately reflecting the internal force change of the structure.
The surface strain gauge in the current market is inconvenient to position, a data wire is easy to damage, numerical reading is greatly influenced by engineering, and the bridge wired detection system is greatly limited in practical use due to the defects of complex wiring, great influence of measuring precision on the wiring and the like.
Disclosure of utility model
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the surface strain gauge with the wireless transmission function, which is used for solving the problems that a cable of the surface strain gauge is easy to damage and inconvenient to position in the prior art, and the wireless transmission scheme is used for replacing the existing wired detection system so as to avoid the problems that wiring is complex and the cable is easy to damage.
The technical scheme adopted by the utility model is as follows: the utility model relates to a surface strain gauge with a wireless transmission function, which comprises a strain gauge main body and a wireless transmission host, wherein the strain gauge main body is connected with the wireless transmission host through a communication cable, and the wireless transmission host is connected with an external computer end through wireless signal transmission.
In the preferred scheme, the strainometer main part includes protective housing, test bar, anchor clamps, fixed jaw, sleeve and screw rod, one side opening setting of protective housing, the periphery of protective housing opening one side is equipped with fixed ear one, the opening part of protective housing is located to the anchor clamps at the test bar both ends to test bar and connection, the protective housing is through the surface of fixed ear one connection at waiting to detect stress position, the outside of test bar is located to the fixed jaw, the interior bottom of protective housing keeping away from opening one side is located to the sleeve, in the protective housing was located to the screw rod spiro union, just the bottom swivelling joint of top one side and the fixation clamp of screw rod, the screw rod is equipped with the handle in the outside of protective housing.
In this scheme, wireless transmission host computer includes shell, circuit board and antenna, the circuit board is located in the shell, be equipped with treater, wireless module, power module and data transmission module on the circuit board, wireless module, power module and data transmission module all are connected with the treater, power module adopts rechargeable battery, data transmission module's bottom one side is equipped with wired communication interface, communication cable is connected with the circuit board through wired communication interface, wireless communication interface has been seted up to wireless module one side about the circuit board, the antenna is connected with wireless communication interface.
In a further optimization scheme, the connection part of the communication cable and the shell is provided with a reinforcing sleeve, the reinforcing sleeve comprises a fixing sleeve which is arranged in a round table shape and penetrates up and down, and a second fixing lug which is arranged on the periphery of the fixing sleeve, the fixing sleeve covers the periphery of the communication cable, and the fixing sleeve is connected with the shell through the second fixing lug.
The circuit board is also provided with a booster circuit for providing excitation voltage for the strain gauge main body.
In the preferred scheme, the outside of shell is equipped with the hangers, through the fixed connection of shell is realized to the hangers.
Preferably, the wireless module is an SMA antenna interface including a Lora wireless module, and the antenna is a rod antenna of 470 Mhz.
The surface strain gauge with the wireless transmission function has the following beneficial effects that the structure is adopted:
1. Through the arrangement of the strain gauge main body, the design of the reinforcing sleeve and the first fixing lug is used for solving the problems that the surface strain gauge cable in the prior art is easy to damage and inconvenient to position,
2. The wireless transmission mode adopted by the wireless transmission host replaces the existing wired detection system, so that the problems of complex wiring and easy damage to cables are avoided, and the transmission efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present solution;
FIG. 2 is a schematic view showing the internal structure of the strain gauge body in the present embodiment;
Fig. 3 is a schematic diagram of an internal structure of a wireless transmission host in this embodiment.
The strain gauge comprises a strain gauge body 1, a strain gauge body 11, a protective shell 12, a test bar 13, a clamp 14, a fixed claw 15, a sleeve 16, a screw 17, a fixed lug I, a fixed lug 18 and a handle;
2. The wireless transmission host computer, 21, the shell, 22, the circuit board, 23, the antenna, 24, the processor, 25, the wireless module, 26, the power supply module, 27, the data transmission module, 28 and the hanging ear;
3. reinforcing sleeve 31, fixed sleeve 32, fixed ear two.
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; 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.
As shown in fig. 1, the surface strain gauge with the wireless transmission function comprises a strain gauge main body 1 and a wireless transmission host 2, wherein the strain gauge main body 1 is connected with the wireless transmission host 2 through a communication cable, and the wireless transmission host 2 is connected with an external computer end through wireless signal transmission.
Referring to fig. 1, in order to solve the problem that the strain gauge body 1 is not easily positioned, a fixing lug 17 is specifically designed for positioning and a reinforcing sleeve 3 is designed for increasing the connection stability between the cable and the housing 21.
Referring to fig. 1 and 2, the strain gauge body 1 includes a protective housing 11, a test bar 12, a clamp 13, a fixing claw 14, a sleeve 15 and a screw 16, wherein an opening on one side of the protective housing 11 is provided, a fixing lug 17 is arranged on the periphery of the opening on one side of the protective housing 11, the test bar 12 and the clamp 13 connected to two ends of the test bar 12 are arranged at the opening of the protective housing 11, the protective housing 11 is connected to the surface of the stress position to be detected through the fixing lug 17, the fixing claw 14 is arranged at the outer part of the test bar 12, the sleeve 15 is arranged at the inner bottom of the protective housing 11 far away from the opening side, the screw 16 is in the protective housing 11 in a screwed connection manner, and one side of the top of the screw 16 is in rotary connection with the bottom of the fixing clamp, and the screw 16 is provided with a handle 18 outside the protective housing 11.
As shown in fig. 1, a reinforcing sleeve 3 is disposed at the connection between the communication cable and the housing 21, the reinforcing sleeve 3 includes a fixing sleeve 31 disposed in a shape of a truncated cone penetrating up and down, and a fixing lug 32 disposed on the outer periphery of the fixing sleeve 31, the fixing sleeve 31 is disposed on the outer periphery of the communication cable in a covering manner, and the fixing sleeve 31 is mounted and connected with the housing 21 through the fixing lug 32.
Referring to fig. 3, the wireless transmission host 2 includes a housing 21, a circuit board 22 and an antenna 23, the circuit board 22 is disposed in the housing 21, a processor 24, a wireless module 25, a power supply module 26 and a data transmission module 27 are disposed on the circuit board 22, the wireless module 25, the power supply module 26 and the data transmission module 27 are all connected with the processor 24, the power supply module 26 adopts a rechargeable battery, a wired communication interface is disposed on one side of the bottom of the data transmission module 27, the communication cable is connected with the circuit board 22 through the wired communication interface, a wireless communication interface is disposed on one side of the wireless module 25 with respect to the circuit board 22, and the antenna 23 is connected with the wireless communication interface.
In a preferred embodiment, the circuit board 22 is further provided with a booster circuit for supplying excitation voltage to the strain gauge body 1. The outside of shell 21 is equipped with the hangers, realizes the fixed connection of shell 21 through the hangers, and wireless module 25 is the SMA antenna 23 interface that contains the Lora wireless module 25, and antenna 23 is 470 Mhz's stick antenna 23.
When the device is specifically used, the reinforcing sleeve is connected between the communication cable and the shell 21, the cable plays a role in protecting and simultaneously plays a role in supporting and fixing, the protective shell 11 is connected to the surface of the position to be detected in stress through the first fixing lug 17, the stability of connection is improved, displacement is not easy, positioning is convenient, the clamp 13 is in contact with concrete for detecting the concrete, and the contact surface between the clamp 13 and the concrete is adjusted through the screw rod, so that the stress is detected in the process.
The signal is transmitted to the processor 24 of the circuit board 22 through the cable, and the wireless transmission host 2 comprises the wireless module 25 and the antenna 23, so that the signal is transmitted to the computer end through the Lora wireless module 25, the existing cable detection system is replaced by the adopted wireless transmission mode, the problems of complex wiring and easy damage of the cable are avoided, and the efficiency of signal transmission is improved.
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.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (6)
1. The surface strain gauge with the wireless transmission function comprises a strain gauge main body and a wireless transmission host, wherein the strain gauge main body is connected with the wireless transmission host through a communication cable, and the wireless transmission host is connected with an external computer end through wireless signal transmission; the strain gauge comprises a strain gauge body, a strain gauge body and a strain gauge body, wherein the strain gauge body comprises a protective shell, a test bar, a clamp and a fixing claw, an opening in one side of the protective shell is formed, the test bar and the clamp connected to two ends of the test bar are arranged at the opening of the protective shell, and the fixing claw is arranged outside the test bar and is characterized in that: the strain gauge comprises a strain gauge body and is characterized in that the strain gauge body further comprises a sleeve and a screw, a first fixed lug is arranged on the periphery of one side of an opening of the protective housing, the protective housing is connected to the surface of the position to be detected by the first fixed lug, the sleeve is arranged on the inner bottom of one side of the protective housing away from the opening, the screw is in threaded connection with the inside of the protective housing, one side of the top of the screw is in rotary connection with the bottom of the fixing clamp, and a handle is arranged outside the protective housing.
2. A surface strain gauge with wireless transmission function according to claim 1, wherein: the wireless transmission host computer includes shell, circuit board and antenna, the circuit board is located in the shell, be equipped with treater, wireless module, power module and data transmission module on the circuit board, wireless module, power module and data transmission module all are connected with the treater, power module adopts rechargeable battery, data transmission module's bottom one side is equipped with wired communication interface, communication cable is connected with the circuit board through wired communication interface, wireless communication interface has been seted up to wireless module one side about the circuit board, the antenna is connected with wireless communication interface.
3. A surface strain gauge with wireless transmission function according to claim 2, wherein: and the circuit board is also provided with a booster circuit for providing excitation voltage for the strain gauge main body.
4. A surface strain gauge with wireless transmission function according to claim 3, wherein: the communication cable is characterized in that a reinforcing sleeve is arranged at the joint of the communication cable and the shell, the reinforcing sleeve comprises a fixing sleeve which is arranged in a round table shape and penetrates up and down, and a second fixing lug which is arranged on the periphery of the fixing sleeve, the fixing sleeve covers the periphery of the communication cable, and the fixing sleeve is connected with the shell through the second fixing lug.
5. A surface strain gauge with wireless transmission as in claim 4, wherein: the outside of shell is equipped with the hangers, through the fixed connection of shell is realized to the hangers.
6. A surface strain gauge with wireless transmission as in claim 5, wherein: the wireless module is an SMA antenna interface comprising a Lora wireless module, and the antenna is a 470Mhz rod-shaped antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322793751.0U CN220871740U (en) | 2023-10-18 | 2023-10-18 | Surface type strain gauge with wireless transmission function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322793751.0U CN220871740U (en) | 2023-10-18 | 2023-10-18 | Surface type strain gauge with wireless transmission function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220871740U true CN220871740U (en) | 2024-04-30 |
Family
ID=90821964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322793751.0U Active CN220871740U (en) | 2023-10-18 | 2023-10-18 | Surface type strain gauge with wireless transmission function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220871740U (en) |
-
2023
- 2023-10-18 CN CN202322793751.0U patent/CN220871740U/en active Active
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