CN217637175U - Double-dial gauge reinforcing steel bar residual deformation measuring device - Google Patents
Double-dial gauge reinforcing steel bar residual deformation measuring device Download PDFInfo
- Publication number
- CN217637175U CN217637175U CN202220761011.1U CN202220761011U CN217637175U CN 217637175 U CN217637175 U CN 217637175U CN 202220761011 U CN202220761011 U CN 202220761011U CN 217637175 U CN217637175 U CN 217637175U
- Authority
- CN
- China
- Prior art keywords
- measuring
- main control
- control board
- steel bar
- measured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The application relates to a two amesdial reinforcing bar residual deformation measuring device includes: the measuring meter frame comprises a base, a deformation transmission rod, a cross beam frame and a supporting measuring rod; the measuring instrument comprises a main control board, a key board, a touch screen and a shell, wherein a second serial port and a power supply port are arranged on the main control board through an opening of the shell and are respectively connected with the dial indicator adapter and the charging power supply port, and the touch screen is connected with the main control board through a first serial port; the sensor component comprises two dial indicators and an adapter, the two dial indicators are symmetrically arranged on the steel bar to be measured and used for measuring the residual deformation value of the steel bar to be measured, and the measured data are interacted with the main control board through a second serial port by the adapter; the power supply assembly supplies power to the measuring instrument; and the main control board receives the measured values of the two dial indicators and then sends the measured values to the touch screen for display through the first serial port. The measuring device is simple in structure, easy to operate and high in measuring precision, can display the residual deformation value of the steel bar in real time, and improves the test efficiency.
Description
Technical Field
The utility model relates to a two amesdial reinforcing bar residual deformation measuring device belongs to reinforcing bar check out test set technical field.
Background
The residual deformation of the steel bar is also called unrecoverable deformation, the steel bar deforms when loaded, the deformation can only be partially recovered after unloading, and the deformation which cannot be recovered is called residual deformation. The working principle of the steel bar mechanical connection technology is that force is transmitted through the mechanical meshing action of the steel bars and the connecting pieces or the pressure bearing action of the end faces of the steel bars. The method has the advantages of simple process, industrial production, little environmental pollution, stable and reliable joint quality, steel and energy conservation and the like, and is widely applied to building engineering. The national people's republic of China industry standard JGJ107-2010 technical Specification for mechanical connection of reinforcing steel bars is implemented in 2016, 8 and 1, wherein the indexes of the performance of detecting the residual deformation of the mechanical connection of the reinforcing steel bars are specified.
The existing measuring method for residual deformation generally adopts the steps of dotting or marking the gauge length of the steel bar, and then performing a tensile test on the steel bar. And (4) subtracting the original gauge length from the measured distance between the dotting line and the scribing line to obtain a residual deformation value. This method requires manual measurement and calculation of the residual deformation value. An auxiliary measuring device is also adopted, for example, a measuring device adopting a displacement sensor is adopted, the displacement sensor measuring device needs to be installed and clamped according to the original dotting or marking position, and the assembly and disassembly are not very convenient; the whole device is provided with screws of different types, wrenches of different types are used for fastening, the operation is complex, the loading and unloading time is prolonged, and the measurement accuracy is low.
Disclosure of Invention
Therefore, an object of the utility model is to provide an easy operation, reinforcing bar residual deformation measuring device that measurement accuracy is high.
In order to achieve the above purpose, the utility model provides a following technical scheme: a double dial gauge reinforcing bar residual deformation measuring device includes:
the measuring instrument frame comprises a base, a cross beam frame, a supporting measuring rod, a deformation transmission rod and a fixing screw;
the measuring instrument comprises a main control board, a key board, a touch screen, a shell and a panel, wherein a second serial port and a power supply port are arranged on the main control board through an opening of the shell and are respectively connected with the dial indicator adapter and the charging power supply port, and the touch screen is connected with the main control board through a first serial port;
the sensor component comprises two dial gauges and an adapter, the two dial gauges are symmetrically arranged on the steel bar to be measured depending on the measuring gauge frame and are used for measuring the residual deformation value of the steel bar to be measured, and the adapter is used for interacting measured data with the main control board through a second serial port; and
the power supply assembly comprises a lithium-containing battery pack and a power adapter and is used for supplying power and charging management to the measuring instrument;
and the main control board receives the measured values of the two dial indicators and then sends the measured values to the touch screen for display through the first serial port.
Furthermore, the measuring gauge frame is used for placing and installing two dial gauges of the sensor component, the installation structure of the measuring gauge frame is composed of a base, a cross beam frame and a support measuring rod, the steel bar to be measured is fixed on three sides through the base and a cross beam frame fixing screw, and the deformation of the steel bar to be measured is transmitted to the two dial gauges through a deformation transmission rod to be measured.
Furthermore, the support measuring rod is selected according to the size of the steel bar to be measured and standard requirements.
Furthermore, the measuring instrument further comprises a plurality of mechanical keys arranged on the panel and a key circuit board arranged below the mechanical keys, and the key circuit board is connected with the main control board.
Further, the power supply assembly controls charging/discharging management of the lithium battery pack through a charging circuit arranged on the main control panel.
The beneficial effects of the utility model reside in that: this application places two amesdial symmetries through the installation of measurement table frame and installs the residual deformation value of measuring the reinforcing bar in the both sides of reinforcing bar, the main control board receives the measurement numerical value that two amesdials sent via the adapter, and sends for the touch-sensitive screen shows. Because the principle of amesdial is simple, based on measuring the simple to operate of table frame and detection accuracy is high for measuring device's simple structure, convenient operation and measurement accuracy are high, and simultaneously through developing the embedded software of touch-sensitive screen, after the measurement is accomplished, the touch-sensitive screen can directly show the data of the reinforcing bar residual deformation that the measurement obtained, improves measurement of efficiency.
The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the specification, the following detailed description will be given of preferred embodiments of the present invention in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a device for measuring residual deformation of a double-dial gauge steel bar according to an embodiment of the present invention;
FIG. 2 is a schematic view of the measuring instrument shown in FIG. 1;
fig. 3 is a schematic structural view of the measurement gauge stand shown in fig. 1.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present invention provides a device for measuring residual deformation of a double-dial gauge steel bar, including a measuring instrument 10, a power supply assembly 50, two dial gauges 30, and a measuring gauge stand 4. Measuring instrument 10 includes casing 1, sets up main control board 2 in casing 1 and sets up the panel 3 on casing 1, is provided with the second serial ports (not shown) of being connected with main control board 2 on the casing 1 and is connected with the amesdial adapter, is provided with first serial ports (not shown) on the main control board 2, inlays on the panel 3 and is equipped with touch-sensitive screen 31, and touch-sensitive screen 31 passes through first serial ports with main control board 2 and is connected. The power supply assembly 50 supplies power to the measuring instrument 10. The measuring instrument frame 4 comprises a base 41, a supporting measuring rod 42, a cross beam frame 43 and a deformation transmission rod 44, the two dial indicators 30 are symmetrically arranged on the measuring instrument frame 4, and a steel bar to be measured (not shown) is fixedly arranged on the measuring instrument frame 4 through a fixing screw (not shown), so that the effects of centering and stable fixing are achieved; furthermore, the steel bar to be measured is respectively installed and fixed by the three-side fixing screw on the base 41 and the three-side fixing screw on the cross beam frame 43; the supporting measuring rod 42 can be customized according to the size and standard requirements of the test piece, so that the adjustment of the measuring gauge length is supported; the two dial gauges 30 are connected with the adapter and are connected to the second serial port to perform data interaction with the main control board; the main control board 2 receives the measurement values sent by the two dial indicators 30 through the second serial port and then sends the measurement values to the touch screen 31 for displaying. Because the principle of amesdial 30 is simple, simple to operate and detection accuracy is high for this two amesdial reinforcing bar residual deformation measuring device's simple structure, convenient operation and measurement accuracy are high, and through the operation of the embedded software of touch-sensitive screen 31, after the measurement is accomplished, touch-sensitive screen 31 can directly show the data of measuring residual deformation, improves measurement of efficiency simultaneously.
It should be noted that the dial gauge 30 is an instrument for measuring the line deformation between two points of the member and other objects, and the dial gauge 30 is an existing one. In this embodiment, the measurement values of the two dial indicators are transmitted to the main control board 2 through the adapter and the second serial port. When the two dial indicators 30 are used for measurement, the two dial indicators 30 need to be symmetrically installed on two sides of the steel bar to be measured, the tensile force arranged on the steel bar to be measured is loaded to 60% of the yield strength from the set initial force value, and then the tensile force is unloaded to the initial force value, and the average value of the data measured by the two dial indicators 30 is the residual deformation parameter of the steel bar to be measured.
The first serial port and the second serial port adopt the prior art, and the serial ports are also called serial communication interfaces or serial communication interfaces and are extension interfaces adopting a serial communication mode. The main control board 2 and the touch screen 31 perform data interaction through the first serial port. The serial port is characterized in that the communication line is simple, two-way communication can be realized only by one pair of transmission lines, so that the cost is greatly reduced, and the working principle and the structure of the serial port are well known by those skilled in the art and are not described herein in detail.
The touch screen 31 is a conventional touch screen or touch panel, and is an inductive liquid crystal display device capable of receiving input signals such as a touch, and when a graphical button on the screen is touched, the tactile feedback system on the screen can drive various connecting devices according to a pre-programmed program, and a vivid video effect is produced by the liquid crystal display screen. In this embodiment, the touch screen 31 is internally provided with embedded software, which can realize functions of data processing, result display, report processing, test setting, and the like, and the double dial gauge reinforcing steel bar residual deformation measuring device displays a residual deformation value on the touch screen 31 through a graphical interface. The graphical interface is more visually acceptable to the user, thereby enhancing the operational experience.
In the present embodiment, the power supply assembly 50 is a lithium battery pack 51 and an external power source 52 disposed in the casing 1. Specifically, the lithium battery pack 51 is disposed in the casing 1 and can directly supply power to the measuring instrument 10, and the external power source 52 is connected to the measuring instrument 10 through a charging interface (not shown), and can charge the lithium battery pack 51 or directly supply power to the measuring instrument 10. Through setting up lithium cell group 51 and external power source 52 cooperation and using for measuring instrument 10 has dual power supply function, and lithium cell group 51 can store the electric energy, and when lithium cell group 51 electric quantity exhausts, can give measuring instrument 10 power supply and charge for lithium cell group 51 through external power source 52, avoids influencing the use because of having a power failure or lithium cell group 51 electric quantity exhausts.
The measuring instrument 10 further includes a plurality of mechanical keys 32 disposed on the panel 3 and a key circuit board (not shown) disposed below the mechanical keys 32, and the key circuit board is connected to the main control board 2. Specifically, the key circuit board is disposed below the mechanical key 32 for sensing when the mechanical key 32 is pressed and determining which of the pressed mechanical keys 32 is, so that the main control board 2 can collect the state of the mechanical key 32 in real time. The convenience of test operation is further improved by arranging the mechanical keys 32 to be matched with the touch screen 31 for use.
It should be noted that the main control board 2 further includes a main chip basic circuit unit, a battery charging/discharging management circuit unit, a serial port communication circuit unit, an input circuit unit and an output circuit unit, wherein the battery charging/discharging circuit unit is used for calculating the SOC electric quantity parameter of the lithium battery pack 51 in real time; the input circuit unit is used for acquiring the state of the mechanical key 32 and the charge-discharge state parameters of the lithium battery pack 51 in real time. The output circuit controls the touch screen 31 to supply power according to the SOC electric quantity parameter of the lithium battery pack 51; the serial port communication circuit unit is used for realizing information bidirectional intercommunication between the touch screen 31 and the main control board 2 and between a dial indicator adapter (not shown) and the main control board 2. The collected relevant parameters can be displayed through the touch screen 31, so that a user can know the use condition of the measuring instrument 10 and the measurement data of the two dial indicators 30 conveniently.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. The utility model provides a two amesdial reinforcing bar residual deformation measuring device which characterized in that includes:
the measuring instrument frame comprises a base, a cross beam frame, a supporting measuring rod, a deformation transmission rod and a fixing screw;
the measuring instrument comprises a main control board, a key board, a touch screen, a shell and a panel, wherein a second serial port and a power supply port are arranged on the main control board through an opening of the shell and are respectively connected with the dial indicator adapter and the charging power supply port, and the touch screen is connected with the main control board through a first serial port;
the sensor component comprises two dial gauges and an adapter, the two dial gauges are symmetrically arranged on the steel bar to be measured by relying on the measuring gauge frame and measure the residual deformation value of the steel bar to be measured, and the measured data are interacted with the main control board through a second serial port by the adapter; and
the power supply assembly comprises a lithium-containing battery pack and a power adapter and is used for supplying power and charging management to the measuring instrument;
the main control board receives the measurement values of the two dial indicators and then sends the measurement values to the touch screen for display through the first serial port.
2. The device for measuring the residual deformation of the double dial gauge reinforcing steel bar according to claim 1,
the measuring gauge frame is used for placing and installing two dial gauges of the sensor component, the installation structure of the measuring gauge frame is composed of a base, a cross beam frame and a support measuring rod, a steel bar to be measured is fixed on three sides through the base and a cross beam frame fixing screw, and deformation of the steel bar to be measured is transmitted to the two dial gauges through a deformation transmission rod to be measured.
3. The device for measuring the residual deformation of the double-dial gauge steel bar according to claim 1, wherein the measuring instrument further comprises a plurality of mechanical keys arranged on the panel and a key circuit board arranged below the mechanical keys, and the key circuit board is connected with the main control board.
4. The device for measuring the residual deformation of the double dial gauge reinforcing steel bar according to claim 1, wherein the power supply assembly controls the charge/discharge management of the lithium battery pack through a charging circuit arranged on the main control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220761011.1U CN217637175U (en) | 2022-04-02 | 2022-04-02 | Double-dial gauge reinforcing steel bar residual deformation measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220761011.1U CN217637175U (en) | 2022-04-02 | 2022-04-02 | Double-dial gauge reinforcing steel bar residual deformation measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217637175U true CN217637175U (en) | 2022-10-21 |
Family
ID=83647132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220761011.1U Active CN217637175U (en) | 2022-04-02 | 2022-04-02 | Double-dial gauge reinforcing steel bar residual deformation measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217637175U (en) |
-
2022
- 2022-04-02 CN CN202220761011.1U patent/CN217637175U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211178687U (en) | Sulfur hexafluoride gas weight measuring device in power equipment | |
| CN201615812U (en) | Contact pressure detection device of load switch contact | |
| CN204314396U (en) | A kind of three-phase intelligent read out instrument | |
| CN103499380A (en) | Cell weight detection system | |
| CN217637175U (en) | Double-dial gauge reinforcing steel bar residual deformation measuring device | |
| CN201193968Y (en) | Mining pressure sensor calibrating apparatus | |
| CN101221109B (en) | Method for automatically testing and recording rated value of SF6 gas density relay | |
| CN216558734U (en) | Double-extensometer reinforcing steel bar residual deformation measuring device | |
| CN202255275U (en) | Portable strain measurement instrument | |
| CN109539925B (en) | Intelligent wedge-shaped feeler gauge and data acquisition system | |
| CN111088976A (en) | System and method for monitoring efficiency of oil pumping unit | |
| CN202693164U (en) | Digital double-range standard dynamometer | |
| CN202033135U (en) | Digital pressure gauge | |
| CN201555557U (en) | Surface roughness measurement device | |
| CN209945521U (en) | Electronic weighing apparatus weighing system based on independent weighing unit | |
| CN204241442U (en) | Hyperchannel indoor gas parameter tester and indoor gas parameter test system | |
| CN203396448U (en) | Liquid level display and liquid level detection system | |
| CN2160111Y (en) | Portable intelligent temperature detection calibrator | |
| CN104655353A (en) | Micro power digital pressure gauge and pressure measuring method | |
| CN202141795U (en) | Loop prover | |
| CN110879097A (en) | Portable scale and calibration method and measurement method thereof | |
| CN116046228B (en) | Magnetic particle inspection equipment lifting force measuring device and method based on strain gauge | |
| CN213632054U (en) | Digital angle measuring instrument | |
| CN219084722U (en) | Bolt anti-slip coefficient detection device | |
| CN201327382Y (en) | Device for measuring contact area of two rollers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |