CN215575144U - Concrete setting time detection device - Google Patents
Concrete setting time detection device Download PDFInfo
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- CN215575144U CN215575144U CN202121770482.0U CN202121770482U CN215575144U CN 215575144 U CN215575144 U CN 215575144U CN 202121770482 U CN202121770482 U CN 202121770482U CN 215575144 U CN215575144 U CN 215575144U
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- setting time
- concrete setting
- lifting device
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- 238000001514 detection method Methods 0.000 title claims abstract description 82
- 230000035515 penetration Effects 0.000 claims abstract description 32
- 238000012360 testing method Methods 0.000 claims description 34
- 238000004891 communication Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 13
- 239000004568 cement Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model relates to concrete detection equipment, and particularly discloses a concrete setting time detection device. Comprises a base, a lifting device, a fixing device, a rotating device, a detecting device, a pressure sensor and a distance sensor. The lifting device is vertically connected with the base, the fixing device is vertically connected with the lifting device, and the detection device is vertically connected with the fixing device. Pressure sensor locates the base upper end, and rotary device locates the pressure sensor upper end, and the rotary device upper end is equipped with the detection container. The device also comprises a control device, wherein the control device comprises a controller, a timing module and a recording module. The timing module, the pressure sensor and the distance sensor are electrically connected with the input end of the controller. The lifting device and the rotating device are electrically connected with the output end of the controller. The utility model can measure the penetration resistance of the concrete in a fixed time, reduces the steps of manual operation of detection personnel and improves the detection precision.
Description
Technical Field
The utility model relates to concrete detection equipment, in particular to a concrete setting time detection device.
Background
The setting time of the concrete refers to the time from adding water to cement until the cement loses plasticity, the setting time is divided into initial setting and final setting, and the initial setting refers to the time from mixing the cement with water to the time required by pure slurry with standard consistency to lose plasticity; final set refers to the time required from the time the cement mixes with water to the time the neat paste of standard consistency begins to lose plasticity and begins to develop strength.
The setting time has important significance on the construction of concrete, the concrete construction needs a series of technological processes such as stirring, transportation, pouring and tamping, and the concrete can not start to set in the process, so the initial setting time is short, and the transportation and pouring of the concrete can be influenced. When the construction is finished, the concrete is required to be hardened as soon as possible to form strength, so that the construction speed of the concrete engineering is influenced if the final setting time is long. The concrete setting time is measured mainly by adopting a penetration resistance method, namely, in the concrete setting process, a test needle is pressed into a sample to be 25mm deep, the penetration resistance is calculated according to the pressure during pressing and the cross section area of the test needle, the initial setting time is reached when the penetration resistance is 3.5MPa, and the final setting time is reached when the penetration resistance is 28 MPa.
For the detection of the concrete setting time, manual operation is mostly needed, the setting time of the concrete is several hours, and the detection needs to be carried out once every half hour or one hour in the detection process, so that the labor cost is increased. The existing concrete setting time detection device always detects the same detection point in the repeated detection process, so that detection errors are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a concrete setting time detection device which can detect the concrete setting time at regular time and detect from different detection points each time.
The basic scheme provided by the utility model is as follows: the concrete setting time detection device comprises a base, a lifting device, a fixing device, a rotating device and a detection device, wherein one end of the lifting device is fixedly connected with the top of the base and is kept vertical to the base, one end of the fixing device is fixedly connected with one end, far away from the base, of the lifting device and is kept parallel to the base, the bottom of one end, far away from the lifting device, of the fixing device is fixedly connected with the detection device, the detection device is vertical to the fixing device, a distance sensor is further arranged at the bottom of the fixing device, a pressure sensor is arranged at the upper end of the base, the rotating device is arranged at the upper end of the pressure sensor, a detection container is arranged at the upper end of the rotating device, the projection of the detection device in the vertical direction falls on the diameter of the detection container, and the projection of the distance sensor in the vertical direction falls in the detection container;
also comprises a control device, the control device comprises a controller, a timing module, a recording module and a display device, the timing module, the pressure sensor and the distance sensor are electrically connected with the input end of the controller, the output end of the controller is electrically connected with the recording module, the lifting device and the rotating device, the controller is used for controlling the lifting device to descend to the detection point at fixed time according to the signal provided by the timing module, and then controls the lifting device to ascend and reset, and the controller is also used for controlling the lifting device to ascend and reset, the rotating device is controlled to rotate by a preset angle, the recording module is electrically connected with the output end of the controller, the pressure sensor is used for recording the pressure detected by the pressure sensor when the lifting device descends to a detection point every time, and the input end of the display device is electrically connected with the input end of the controller and used for displaying the data recorded by the recording module.
The principle and the advantages of the utility model are as follows: when the concrete setting time is detected, the sample is placed into the detection container, the controller controls the lifting device to descend to a detection point in a timing mode according to signals provided by the timing module, when the lifting device descends, the fixing device is driven to move downwards, the fixing device drives the detection device to move downwards, the detection device is inserted into the concrete sample of the detection container, downward pressure is generated when the detection device is inserted, the pressure detector records the generated pressure, and the recording module records the generated pressure. When the lifting device ascends, the fixing device is driven to move upwards, so that the detection device is driven to leave the detection container, one-time detection is completed, and after the lifting device finishes one-time lifting, the controller controls the rotating device to rotate by a preset angle, so that a detection hole for the current detection is avoided during the next detection. Compare in prior art, need not the manual work and operate, regularly detect to detect the certain angle of back control rotary device drive detection container rotation after detecting at every turn, make next detection avoid the produced appearance of last detection accuse, improve the detection range, and detect produced pressure to every turn and carry out the record, be convenient for observe the condensation process of concrete.
Furthermore, the lifting device is an electric telescopic rod with a stepping motor, and the input end of the stepping motor is electrically connected with the output end of the controller and used for driving the electric telescopic rod to stretch under the control of the controller.
The speed of the electric telescopic rod during lifting is uniform, and the measuring precision can be increased.
Furthermore, the rotating device comprises a servo motor and a turntable, wherein a rotating shaft of the servo motor is fixedly connected with the bottom of the turntable and electrically connected with an output end of the controller, and the rotating shaft is used for driving the turntable to rotate under the control of the controller.
The servo motor drives the turntable to rotate, so that the rotating angle is kept uniform every time.
Further, detection device includes needle groove and test needle, needle groove top and fixing device's bottom fixed connection, needle groove bottom and test needle top pass through screw thread screwed connection.
The needle groove is fixedly connected with the bottom of the fixing device, and the testing needle is spirally connected with the bottom of the needle groove, so that the testing needle is detachable and convenient to replace.
Further, the controller is also used for calculating the penetration resistance according to the pressure detected by the pressure sensor and the cross-sectional area of the test needle, and the display device is also used for displaying the penetration resistance output by the controller.
And calculating the penetration resistance according to the cross section area of the test needle and the pressure detected by the pressure sensor to determine the initial setting time and the final setting time of the concrete, and displaying the penetration resistance of each time period through a display device so as to be checked on site.
Further, the test needle includes cross-sectional areas of 100mm each2、50mm2And 20mm2The test pin of (1).
When the penetration resistance is less than 3.5MPa, 100mm is used2The test needle of (1) is used at a penetration resistance of more than 3.5MPa and less than 20MPa, and has a thickness of 50mm2The test needle of (2) is used at a penetration resistance of 20mm or more and less than 28MPa2To improve the accuracy of the measurement.
Further, still include temperature sensor, temperature sensor locates the fixing device bottom, and the projection in vertical direction is located and detects the container, just temperature sensor is connected with the controller electricity for measure ambient temperature.
The temperature is detected, and the influence on the condensation time caused by temperature transmission change is avoided.
The control equipment further comprises a user terminal, and the control equipment further comprises a communication module, wherein the communication module is electrically connected with the output end of the controller, is in network connection with the user terminal, and is used for sending the penetration resistance detected each time to the user terminal.
And transmitting the detected penetration resistance to a user terminal so that the user can remotely check the coagulation degree of the concrete.
Further, the user terminal also comprises a reminding module, and the reminding module is used for sending out a reminding when the received penetration resistance is 3.5MPa, 20MPa and 28 MPa.
The user end sends out the warning when the penetration resistance is 3.5MPa, 20MPa and 28MPa, reminds the user to go to and change the test needle to be the initial set time when the penetration resistance is 3.5MPa, and the final set time when the penetration resistance is 28 MPa.
Further, the controller is further configured to send an alarm signal to the user terminal through the communication module when the temperature detected by the temperature detector is less than 18 ℃ or greater than 22 ℃, and the reminding module is further configured to send a reminder after receiving the alarm signal.
The concrete setting time is detected to be the optimal temperature of 18-22 ℃, and when the temperature is beyond the range, a prompt is sent to a user to reduce detection errors.
Drawings
FIG. 1 is a schematic structural diagram of a concrete setting time detecting apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view showing a partial structure of a concrete setting time detecting apparatus according to an exemplary embodiment of the present invention;
FIG. 3 is a logic block diagram of the concrete setting time detecting apparatus according to the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
the reference numbers in the drawings of the specification include: the device comprises a base 1, a pressure sensor 2, a lifting device 3, a fixing device 4, a detection device 5, a needle groove 51, a test needle 52, a detection container 6, a rotating device 7, a turntable 71, a servo motor 72, a control device 8, a distance sensor 9 and a temperature sensor 10.
The embodiment is basically as shown in the attached figure 1:
the concrete setting time detection device of this embodiment includes base 1, pressure sensor 2, elevating gear 3, fixing device 4, detection device 5, rotary device 7. In this embodiment, the lifting device is preferably an electric telescopic rod with a stepping motor, one end of the lifting device 3 is fixedly connected with the top of the base 1 and is kept perpendicular to the base 1, the other end of the lifting device 3 is fixedly connected with one end of the fixing device 4, the fixing device 4 is kept parallel to the base 1, the bottom of one end of the fixing device 4 far away from the lifting device 3 is provided with the detection device 5, the detection device 5 is kept perpendicular to the fixing device 4, the detection device 5 comprises a needle groove 51 and a test needle 52, the top of the needle groove 51 is fixedly connected with the bottom of the fixing device 4, the bottom of the needle groove 51 is spirally connected with the top of the test needle 52 through threads, and the test needle 52 comprises three models with cross-sectional areas of 100mm2, 50mm2 and 20mm2 respectively.
The upper end of the base 1 is provided with a pressure sensor 2, in the embodiment, the pressure sensor 2 is preferably a CAZF-Y12 micro pressure sensor, the upper end of the pressure sensor 2 is provided with a rotating device 7, the rotating device 7 comprises a servo motor 72 and a turntable 71, and the rotating shaft of the servo motor 72 is fixedly connected with the bottom of the turntable 71 and is coaxial with the turntable 71. The upper end of the rotary disc 71 is provided with a detection container 6, the detection container 6 is a rigid water-impermeable metal cylinder with an upper caliber of 160mm, a lower caliber of 150mm and a height of 150mm, the detection container 6 is coaxial with the rotary disc 71, and the projection of the test needle 52 in the vertical direction falls on the diameter of the lower caliber of the detection container 6, and the distance from the edge of the upper caliber of the detection container 6 is more than 25 mm.
As shown in fig. 2, the bottom of the fixing device 4 is further provided with a distance sensor 9 and a temperature sensor 10, and the projections of the distance sensor 9 and the temperature sensor 10 in the vertical direction both fall within the upper caliber of the detection container 4. The distance sensor 9 is preferably an infrared distance measuring sensor in the present embodiment, and the temperature sensor 10 is preferably a DS18B20 temperature sensor.
In addition, the control device 8 is further included, in the embodiment, the top of the control device 8 is fixedly connected with the bottom of the base 1, and the electrical connection relationship of the control device is as shown in fig. 3, and the control device includes a controller, a timing module, a display device, a recording module and a communication module. The input end of the controller is electrically connected with the pressure sensor 2, the distance sensor 9, the temperature sensor 10 and the timing module, the output end of the controller is electrically connected with the display device, the recording module, the communication module, the lifting device 3 and the servo motor 72 of the rotating device 7, and in the embodiment, the controller is preferably an STM32 series single chip microcomputer.
The timing module is used for setting delay time, the controller controls the lifting device 3 to stretch and retract according to a signal sent by the timing chip, in the embodiment, the timing module is preferably a 555 timing chip, and the lifting device 3 is controlled to lift once every 30 minutes, the lifting device 3 firstly descends to a detection point, concretely, the testing needle 52 is enabled to penetrate into a concrete sample 25mm in the detection container 6, the stretching speed is 2.5mm/s, the controller subtracts the distance detected by the distance sensor from the length of the detection device 5, whether 25mm is penetrated or not is judged, after the distance reaches 25mm, the lifting device 3 is controlled to stop descending, the recording module records the pressure detected by the pressure sensor 2 at the moment, and then the controller controls the lifting device 3 to ascend and restore to the original position. After the lifting device 3 is reset, the controller controls the rotating device 7 to rotate by a preset angle, in this embodiment, clockwise by 30 °, to complete one-time detection.
When the lifting device 3 is retracted downward, the controller calculates the penetration resistance according to the formula R ═ P/a, where R is the penetration resistance (MPa), P is the pressure (N) at which the test needle 52 penetrates the concrete sample by 25mm, and a is the cross-sectional area (mm) of the test needle2). The display device is used for displaying the penetration resistance detected each time, and in the embodiment, the display device is a liquid crystal display integrated on the side surface of the control equipment, and the measurement result is displayed by a two-dimensional coordinate system by taking a time point as an abscissa and the penetration resistance as an ordinate.
In addition, still including user terminal, user terminal is including reminding the module, display terminal and communication module internet access, and in this embodiment, user terminal is smart mobile phone APP, and communication module is 4G network module, and communication module sends for user terminal at the penetration resistance that detects each time, and simultaneously, sends the temperature that temperature sensor detected for user terminal every 1 minute. When the penetration resistance received by the user terminal is 3.5MPa, 20MPa or 28MPa, the reminding module can send out a reminding to send out a reminding. The temperature sensor detects the temperature in real time, the controller sends an alarm signal to the user terminal through the communication module when the detected temperature is less than 18 ℃ or greater than 22 ℃, and the reminding module also sends a reminder after the user terminal receives the alarm signal.
In addition, the device also comprises a power supply module which is used for supplying power to the device.
The specific implementation process is as follows:
during detection, a concrete sample is screened out of mortar by a 5mm (circular hole screen) vibrating screen and then placed into a detection container 6, the surface of the sample is slightly lower than the opening of a barrel by 10mm, a pressure sensor is zeroed, and the installation cross-sectional area is 100mm2The test pin 52, the start power module, and the control device.
After 30 minutes, the timing module sends out a signal, the controller receives the signal, controls the lifting device 3 to descend at the speed of 2.5mm/s, drives the detection device 5 to move downwards, the distance sensor 9 detects the distance between the lifting device 3 and the surface of the concrete sample in real time in the descending process, the controller subtracts the distance detected by the distance sensor from the length of the detection device 5 to calculate the length of the test needle 52 penetrating into the concrete sample, when the penetrating length reaches 25mm, the lifting device 3 is controlled to stop descending, and the controller controls the lifting device to stop descending according to the pressure detected by the pressure sensor, and the penetration resistance is calculated by the cross-sectional area of the test needle 52, the display device displays the result of the detection on the two-dimensional coordinate system, after the controller controls the lifting device 3 to restore, and controlling the rotating device 7 to rotate clockwise by 30 degrees to complete one-time detection, and sending a test result to the user terminal through the communication module.
Repeating the above process, when the penetration resistance received by the user terminal is 3.5MPa, sending out a prompt through the prompt module, and the user needs to go to the moment to replace the test needle 52 with the cross-sectional area of 50mm2And the initial setting time is recorded. After replacement, the above process is continuously repeated until the penetration resistance received by the user terminal is 20MPa, the reminding module gives out the reminding again, and the user needs to go to the time to replace the test pin 52 with the test pin with the cross-sectional area of 20mm2The test pin 52 continues to repeat the above process until the penetration resistance received by the user terminal is 28MPa, at which time the user needs to go to turn off the power supply device, and the final setting time is recorded.
In the detection process, the temperature sensor detects the temperature in real time, the controller sends an alarm signal to the user terminal through the communication module when the temperature detected by the temperature sensor is less than 18 ℃ or more than 22 ℃, and the reminding module also sends a reminder after the user terminal receives the alarm signal.
The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the utility model in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the utility model may be embodied in practice with the teachings of the utility model. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Concrete setting time detection device, including base, elevating gear, fixing device, rotary device and detection device, its characterized in that: one end of the lifting device is fixedly connected with the top of the base and is perpendicular to the base, one end of the fixing device is fixedly connected with one end of the lifting device, which is far away from the base, and is parallel to the base, the bottom of the fixing device, which is far away from the end of the lifting device, is fixedly connected with a detection device, the detection device is perpendicular to the fixing device, the bottom of the fixing device is also provided with a distance sensor, the upper end of the base is provided with a pressure sensor, the upper end of the pressure sensor is provided with a rotating device, the upper end of the rotating device is provided with a detection container, the projection of the detection device in the vertical direction falls on the diameter of the detection container, and the projection of the distance sensor in the vertical direction falls in the detection container;
also comprises a control device, the control device comprises a controller, a timing module, a recording module and a display device, the timing module, the pressure sensor and the distance sensor are electrically connected with the input end of the controller, the output end of the controller is electrically connected with the recording module, the lifting device and the rotating device, the controller is used for controlling the lifting device to descend to the detection point at fixed time according to the signal provided by the timing module, and then controls the lifting device to ascend and reset, and the controller is also used for controlling the lifting device to ascend and reset, the rotating device is controlled to rotate by a preset angle, the recording module is electrically connected with the output end of the controller, the pressure sensor is used for recording the pressure detected by the pressure sensor when the lifting device descends to a detection point every time, and the input end of the display device is electrically connected with the input end of the controller and used for displaying the data recorded by the recording module.
2. The concrete setting time detecting apparatus according to claim 1, wherein: the lifting device is an electric telescopic rod with a stepping motor, and the input end of the stepping motor is electrically connected with the output end of the controller and used for driving the electric telescopic rod to stretch under the control of the controller.
3. The concrete setting time detecting apparatus according to claim 1, wherein: the rotating device comprises a servo motor and a turntable, wherein a rotating shaft of the servo motor is fixedly connected with the bottom of the turntable and electrically connected with an output end of the controller, and the rotating shaft is used for driving the turntable to rotate under the control of the controller.
4. The concrete setting time detecting apparatus according to claim 1, wherein: the detection device comprises a needle groove and a test needle, the top of the needle groove is fixedly connected with the bottom of the fixing device, and the bottom of the needle groove is spirally connected with the top of the test needle through threads.
5. The concrete setting time detecting apparatus according to claim 4, wherein: the controller is also used for calculating the penetration resistance according to the pressure detected by the pressure sensor and the cross-sectional area of the test needle, and the display device is also used for displaying the penetration resistance output by the controller.
6. The concrete setting time detecting apparatus according to claim 5, wherein: the test needle comprises cross-sectional areas of 100mm2、50mm2And 20mm2The test pin of (1).
7. The concrete setting time detecting apparatus according to claim 1, wherein: still include temperature sensor, temperature sensor locates the fixing device bottom, and the projection in vertical direction is located and detects the container, just temperature sensor is connected with the controller electricity for measure ambient temperature.
8. The concrete setting time detecting apparatus according to claim 5, wherein: the control equipment further comprises a user terminal, and the control equipment further comprises a communication module, wherein the communication module is electrically connected with the output end of the controller, is in network connection with the user terminal, and is used for sending the penetration resistance detected each time to the user terminal.
9. The concrete setting time detecting apparatus according to claim 8, wherein: the user terminal further comprises a reminding module, and the reminding module is used for sending out a reminding when the received penetration resistance is 3.5MPa, 20MPa and 28 MPa.
10. The concrete setting time detecting apparatus according to claim 9, wherein: the controller is further used for sending an alarm signal to the user terminal through the communication module when the temperature detected by the temperature detector is less than 18 ℃ or greater than 22 ℃, and the reminding module is further used for sending a reminder after receiving the alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121770482.0U CN215575144U (en) | 2021-07-30 | 2021-07-30 | Concrete setting time detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121770482.0U CN215575144U (en) | 2021-07-30 | 2021-07-30 | Concrete setting time detection device |
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| Publication Number | Publication Date |
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| CN215575144U true CN215575144U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121770482.0U Expired - Fee Related CN215575144U (en) | 2021-07-30 | 2021-07-30 | Concrete setting time detection device |
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|---|---|
| CN (1) | CN215575144U (en) |
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2021
- 2021-07-30 CN CN202121770482.0U patent/CN215575144U/en not_active Expired - Fee Related
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Granted publication date: 20220118 |