Device for detecting setting time of concrete

Abstract

The utility model discloses a concrete setting time detection device which comprises a sample cylinder, a detection base attached to the bottom of the sample cylinder, a stand column vertically connected to the surface of the detection base, the detection base located beside the stand column, a pressure displayer connected to the stand column, a fixing rod connected to the side wall of the stand column, and the fixing rod and the stand column are vertically arranged. The fixing rod is vertically connected with a hydraulic column, the hydraulic column and the stand column are arranged in parallel, the hydraulic column is connected with a probe conversion assembly, the probe conversion assembly is arranged close to the sample cylinder, the pressure display is electrically connected with the probe conversion assembly and the hydraulic column, and the problems that in the prior art, the time for manually replacing a probe is long and operation is not easy during detection are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete testing devices, specifically relating to a device for detecting the setting time of concrete. Background Technology

[0002] In concrete production, it is necessary to determine the setting time of concrete mixtures under different cement types, different admixtures, different concrete mix proportions, and different temperature environments. Therefore, a concrete setting time testing device is required.

[0003] Currently, most existing concrete setting time testing devices use penetration resistance meters to determine concrete setting time. However, the process of using a penetration resistance meter often involves manual pressing of the penetration needle, which makes the accuracy susceptible to human error. Furthermore, the probe needs to be replaced multiple times based on changes in penetration resistance, a time-consuming process that affects the measurement time and makes the device cumbersome to use. In addition, after the measurement is completed, it is difficult to remove the waste material from the sample tube because the concrete has solidified inside, causing great inconvenience to the test. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting the setting time of concrete, which solves the problem that the existing technology has long time and is difficult to operate when manually changing probes.

[0005] The technical means adopted in this utility model is a concrete setting time detection device, including a sample tube, a detection base attached to the bottom of the sample tube, a column vertically connected to the surface of the detection base, the detection base being set next to the column, a pressure display connected to the column, a fixing rod connected to the side wall of the column, the fixing rod being set vertically to the column, a hydraulic column vertically connected to the fixing rod, the hydraulic column being set parallel to the column, a probe conversion assembly connected to the hydraulic column, the probe conversion assembly being set close to the sample tube, and the pressure display being electrically connected to the probe conversion assembly and the hydraulic column respectively.

[0006] The features of this utility model also include:

[0007] The probe conversion assembly includes a connecting plate, which is connected to a hydraulic column. A reducer is provided on the surface of the connecting plate. A motor is connected to the input end of the reducer, and a rotating shaft is connected to the output end of the reducer. The rotating shaft passes through the connecting plate and is connected to the center of a turntable. Probes are provided on the side wall of the turntable along the circumferential direction.

[0008] There should be no fewer than three probes, which should be evenly spaced on the side wall of the turntable.

[0009] The pressure indicator contains a chip, and the surface of the pressure indicator has a switch assembly and a display screen. The chip is connected to the switch assembly and the display screen via signal lines, and the chip is electrically connected to the hydraulic column, the motor and the probe.

[0010] The sample cylinder includes a first half-cylinder and a second half-cylinder that fit together. The first half-cylinder and the second half-cylinder are connected by a hinge. The side walls of the first half-cylinder and the second half-cylinder are respectively connected with a number of oppositely arranged connecting ears. The connecting ears and the hinge are symmetrically arranged about the axis of the sample cylinder. The connecting ears are connected by bolts and threads.

[0011] A sealing strip is provided at the connection between the first and second halves of the barrel.

[0012] The bottom of the sample tube is connected to a ring-shaped fixing frame, the diameter of which is no larger than the diameter of the sample tube.

[0013] A fixing plate is connected to the inner wall of the fixing frame, and a telescopic tube is connected to the fixing plate. A limit spring is sleeved on the telescopic tube. The telescopic tube passes through the bottom of the first half-bucket and is connected to a stainless steel round head. A sealing ring is connected between the stainless steel round head and the bottom of the first half-bucket. A foot pedal is connected to the fixing plate, and the foot pedal extends out after passing through the side wall of the fixing frame.

[0014] The beneficial effects of this utility model are: the design of the hydraulic column allows the probe conversion component to be inserted into the sample cylinder for testing, and the test results are displayed on the pressure display. The probe conversion component is connected to the pressure display, and the probe conversion component is controlled by the pressure display. Different probes required for testing can be assembled, which is convenient for testing and saves the steps and time of changing probes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the concrete setting time detection device of this utility model.

[0016] Figure 2 This is a schematic diagram of the probe conversion component in the concrete setting time detection device of this utility model;

[0017] Figure 3 This is a schematic diagram of the pressure display in the concrete setting time detection device of this utility model.

[0018] Figure 4 This is a schematic diagram of the sample cylinder in the concrete setting time testing device of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the first half-bucket in the concrete setting time detection device of this utility model.

[0020] In the diagram, 1. Detection base, 2. Column, 3. Pressure indicator, 301. Chip, 302. Switch assembly, 303. Display screen, 4. Fixing rod, 5. Hydraulic column, 6. Probe conversion assembly, 601. Connecting plate, 602. Reducer, 603. Motor, 604. Rotating shaft, 605. Turntable, 606. Probe, 7. Sample cylinder, 701. First half-barrel, 702. Second half-barrel, 703. Hinge, 704. Connecting lug, 705. Bolt, 706. Sealing strip, 707. Fixing frame, 708. Fixing plate, 709. Telescopic tube, 710. Limiting spring, 711. Stainless steel round head, 712. Sealing ring, 713. Foot pedal. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] This utility model relates to a concrete setting time detection device, such as... Figure 1 As shown, the device includes a sample cylinder 7, a detection base 1 attached to the bottom of the sample cylinder 7, a column 2 vertically connected to the surface of the detection base 1, the detection base 1 being positioned next to the column 2, a pressure display 3 connected to the column 2, a fixing rod 4 connected to the side wall of the column 2, the fixing rod 4 being vertically positioned to the column 2, a hydraulic column 5 vertically connected to the fixing rod 4, the hydraulic column 5 being parallel to the column 2, a probe conversion assembly 6 connected to the hydraulic column 5, the probe conversion assembly 6 being positioned close to the sample cylinder 7, and the pressure display 3 being electrically connected to both the probe conversion assembly 6 and the hydraulic column 5.

[0023] like Figure 2 As shown, the probe conversion assembly 6 includes a connecting plate 601, which is connected to the hydraulic column 5. A reducer 602 is provided on the surface of the connecting plate 601. A motor 603 is connected to the input end of the reducer 602, and a rotating shaft 604 is connected to the output end of the reducer 602. The rotating shaft 604 passes through the connecting plate 601 and is connected to the center of the turntable 605. Probes 606 are provided on the side wall of the turntable 605 along the circumferential direction.

[0024] There are no fewer than three probes 606, and the probes 606 are evenly spaced on the side wall of the turntable 605.

[0025] like Figure 3 As shown, the pressure display 3 has a chip 301 inside, and a switch assembly 302 and a display screen 303 on its surface. The chip 301 is connected to the switch assembly 302 and the display screen 303 via signal lines, and the chip 301 is electrically connected to the hydraulic column 5, the motor 603 and the probe 606.

[0026] like Figure 4As shown, the sample cylinder 7 includes a first half-cylinder 701 and a second half-cylinder 702 that cooperate with each other. The first half-cylinder 701 and the second half-cylinder 702 are movably connected by a hinge 703. The side walls of the first half-cylinder 701 and the second half-cylinder 702 are respectively connected with a plurality of oppositely arranged connecting ears 704. The connecting ears 704 and the hinge 703 are symmetrically arranged about the axis of the sample cylinder 7. The plurality of connecting ears 704 are threadedly connected by bolts 705.

[0027] A sealing strip 706 is provided at the connection between the first half-bucket 701 and the second half-bucket 702.

[0028] The bottom of the sample tube 7 is connected to an annular fixing frame 707, the diameter of which is not greater than the diameter of the sample tube 7.

[0029] A fixing plate 708 is connected to the inner wall of the fixing frame 707. A telescopic tube 709 is connected to the fixing plate 708. A limit spring 710 is sleeved on the telescopic tube 709. The telescopic tube 709 passes through the bottom of the first half-bucket 701 and is connected to a stainless steel round head 711. A sealing ring 712 is connected between the stainless steel round head 711 and the bottom of the first half-bucket 701. Figure 5 As shown; the fixed plate 708 is connected to the foot pedal 713, which extends through the side wall of the fixed frame 707.

[0030] The turntable 605 is equipped with a probe 606. The motor 603 rotates to control the probe 606 to be positioned directly in front of the sample cylinder 7 and to extend into the sample cylinder 7 to detect the concrete setting time. The data detected by the probe 606 is transmitted to the chip 301 and then displayed and recorded on the screen for easy recording and calculation. The hydraulic column 5 allows the probe 606 to move towards the sample cylinder 7.

[0031] The sealing strip 706 allows the first half-bucket 701 and the second half-bucket 702 to be connected by hinges and bolts to form a tightly connected sample cylinder 7. The foot pedal 713 can vibrate and compact the concrete when assembling and removing the concrete from the sample cylinder 7, and vibrate and loosen the solidified concrete, respectively, making operation convenient. The limit spring 710 and the telescopic tube 709 increase the intensity of vibration. The sealing ring 712 prevents concrete leakage from the inner bottom plate of the first half-bucket 701.

[0032] The operation process of this concrete setting time testing device is as follows: The mixed cement paste is immediately poured into the sample cylinder 7. After vibrating the foot pedal 713 several times, the paste is leveled. The sample cylinder 7 is placed on the testing base 1, and its position is adjusted. After adjustment, the hydraulic column 5 automatically extends and retracts according to the preset program of the chip 9, controlled by the switch assembly 302. This allows the probe 606 to be inserted into the concrete mortar inside the sample cylinder 7 with a stable force and speed. The pressure value is read on the pressure display 3. Tests are then performed every hour, or at intervals specified as needed. Near the initial and final setting times, the test time is appropriately shortened. This process is repeated until the concrete in the sample cylinder 7 reaches its final setting state. The setting time is calculated based on the penetration resistance values ​​read at different times.

[0033] First, the penetration resistance is calculated, and the result is retained to 0.1 MPa.

[0034]

[0035] In the formula, P represents the penetration resistance (MPa), F represents the penetration pressure (N), and A represents the corresponding probe bearing area (mm²). 2 .

[0036] Plot a penetration resistance-time curve with penetration resistance as the ordinate and test time as the abscissa. Draw two straight lines parallel to the abscissa at 3.5 MPa and 28 MPa. The abscissa values ​​corresponding to the intersection of the straight lines and the curve are the initial setting time and final setting time, respectively. The setting time is expressed in minutes.

[0037] During the test, by controlling the motor 603 to drive the rotating shaft 604 to rotate at different angles, the required probe 606 is aligned with the sample cylinder 7. The probe can be changed according to the change of the detection time, which simplifies the operation of changing the probe of the detection device. After the test is completed, stepping on the foot pedal 713 pushes the stainless steel round head 711 upward, thereby loosening the concrete block solidified in the sample cylinder 7. Then, by unscrewing the bolt 705, the first half of the barrel 701 and the second half of the barrel 702 are separated, which allows the concrete block inside the barrel to be cleaned. At the same time, it is convenient to clean the inside of the barrel, which has good convenience.

[0038] Example 1

[0039] This utility model relates to a concrete setting time testing device, comprising a sample cylinder 7, a testing base 1 attached to the bottom of the sample cylinder 7, a column 2 vertically connected to the surface of the testing base 1, the testing base 1 being positioned beside the column 2, a pressure display 3 connected to the column 2, a fixing rod 4 connected to the side wall of the column 2, the fixing rod 4 being vertically positioned to the column 2, a hydraulic column 5 vertically connected to the fixing rod 4, the hydraulic column 5 being parallel to the column 2, a probe conversion assembly 6 connected to the hydraulic column 5, the probe conversion assembly 6 being positioned close to the sample cylinder 7, and the pressure display 3 being electrically connected to both the probe conversion assembly 6 and the hydraulic column 5.

[0040] Example 2

[0041] This utility model relates to a concrete setting time testing device, comprising a sample cylinder 7, a testing base 1 attached to the bottom of the sample cylinder 7, a column 2 vertically connected to the surface of the testing base 1, the testing base 1 being positioned beside the column 2, a pressure display 3 connected to the column 2, a fixing rod 4 connected to the side wall of the column 2, the fixing rod 4 being vertically positioned to the column 2, a hydraulic column 5 vertically connected to the fixing rod 4, the hydraulic column 5 being parallel to the column 2, a probe conversion assembly 6 connected to the hydraulic column 5, the probe conversion assembly 6 being positioned close to the sample cylinder 7, and the pressure display 3 being electrically connected to both the probe conversion assembly 6 and the hydraulic column 5.

[0042] The probe conversion assembly 6 includes a connecting plate 601, which is connected to the hydraulic column 5. A reducer 602 is provided on the surface of the connecting plate 601. A motor 603 is connected to the input end of the reducer 602, and a rotating shaft 604 is connected to the output end of the reducer 602. The rotating shaft 604 passes through the connecting plate 601 and is connected to the center of the turntable 605. Probes 606 are provided on the side wall of the turntable 605 along the circumferential direction.

[0043] Example 3

[0044] This utility model relates to a concrete setting time testing device, comprising a sample cylinder 7, a testing base 1 attached to the bottom of the sample cylinder 7, a column 2 vertically connected to the surface of the testing base 1, the testing base 1 being positioned beside the column 2, a pressure display 3 connected to the column 2, a fixing rod 4 connected to the side wall of the column 2, the fixing rod 4 being vertically positioned to the column 2, a hydraulic column 5 vertically connected to the fixing rod 4, the hydraulic column 5 being parallel to the column 2, a probe conversion assembly 6 connected to the hydraulic column 5, the probe conversion assembly 6 being positioned close to the sample cylinder 7, and the pressure display 3 being electrically connected to both the probe conversion assembly 6 and the hydraulic column 5.

[0045] The probe conversion assembly 6 includes a connecting plate 601, which is connected to the hydraulic column 5. A reducer 602 is provided on the surface of the connecting plate 601. A motor 603 is connected to the input end of the reducer 602, and a rotating shaft 604 is connected to the output end of the reducer 602. The rotating shaft 604 passes through the connecting plate 601 and is connected to the center of the turntable 605. Probes 606 are provided on the side wall of the turntable 605 along the circumferential direction.

[0046] There are no fewer than three probes 606, and the probes 606 are evenly spaced on the side wall of the turntable 605.

[0047] Example 4

[0048] This utility model relates to a concrete setting time testing device, comprising a sample cylinder 7, a testing base 1 attached to the bottom of the sample cylinder 7, a column 2 vertically connected to the surface of the testing base 1, the testing base 1 being positioned beside the column 2, a pressure display 3 connected to the column 2, a fixing rod 4 connected to the side wall of the column 2, the fixing rod 4 being vertically positioned to the column 2, a hydraulic column 5 vertically connected to the fixing rod 4, the hydraulic column 5 being parallel to the column 2, a probe conversion assembly 6 connected to the hydraulic column 5, the probe conversion assembly 6 being positioned close to the sample cylinder 7, and the pressure display 3 being electrically connected to both the probe conversion assembly 6 and the hydraulic column 5.

[0049] The probe conversion assembly 6 includes a connecting plate 601, which is connected to the hydraulic column 5. A reducer 602 is provided on the surface of the connecting plate 601. A motor 603 is connected to the input end of the reducer 602, and a rotating shaft 604 is connected to the output end of the reducer 602. The rotating shaft 604 passes through the connecting plate 601 and is connected to the center of the turntable 605. Probes 606 are provided on the side wall of the turntable 605 along the circumferential direction.

[0050] There are no fewer than three probes 606, and the probes 606 are evenly spaced on the side wall of the turntable 605.

[0051] The pressure display 3 has a chip 301 inside, and a switch assembly 302 and a display screen 303 on its surface. The chip 301 is connected to the switch assembly 302 and the display screen 303 via signal lines, and the chip 301 is electrically connected to the hydraulic column 5, the motor 603 and the probe 606.

[0052] Example 5

[0053] This utility model relates to a concrete setting time testing device, comprising a sample cylinder 7, a testing base 1 attached to the bottom of the sample cylinder 7, a column 2 vertically connected to the surface of the testing base 1, the testing base 1 being positioned beside the column 2, a pressure display 3 connected to the column 2, a fixing rod 4 connected to the side wall of the column 2, the fixing rod 4 being vertically positioned to the column 2, a hydraulic column 5 vertically connected to the fixing rod 4, the hydraulic column 5 being parallel to the column 2, a probe conversion assembly 6 connected to the hydraulic column 5, the probe conversion assembly 6 being positioned close to the sample cylinder 7, and the pressure display 3 being electrically connected to both the probe conversion assembly 6 and the hydraulic column 5.

[0054] The probe conversion assembly 6 includes a connecting plate 601, which is connected to the hydraulic column 5. A reducer 602 is provided on the surface of the connecting plate 601. A motor 603 is connected to the input end of the reducer 602, and a rotating shaft 604 is connected to the output end of the reducer 602. The rotating shaft 604 passes through the connecting plate 601 and is connected to the center of the turntable 605. Probes 606 are provided on the side wall of the turntable 605 along the circumferential direction.

[0055] There are no fewer than three probes 606, and the probes 606 are evenly spaced on the side wall of the turntable 605.

[0056] The pressure display 3 has a chip 301 inside, and a switch assembly 302 and a display screen 303 on its surface. The chip 301 is connected to the switch assembly 302 and the display screen 303 via signal lines, and the chip 301 is electrically connected to the hydraulic column 5, the motor 603 and the probe 606.

[0057] The sample cylinder 7 includes a first half-cylinder 701 and a second half-cylinder 702 that cooperate with each other. The first half-cylinder 701 and the second half-cylinder 702 are movably connected by a hinge 703. The side walls of the first half-cylinder 701 and the second half-cylinder 702 are respectively connected with a plurality of oppositely arranged connecting ears 704. The connecting ears 704 and the hinge 703 are symmetrically arranged about the axis of the sample cylinder 7. The plurality of connecting ears 704 are threadedly connected by bolts 705.

[0058] A sealing strip 706 is provided at the connection between the first half-bucket 701 and the second half-bucket 702.

[0059] Example 6

[0060] This utility model relates to a concrete setting time testing device, comprising a sample cylinder 7, a testing base 1 attached to the bottom of the sample cylinder 7, a column 2 vertically connected to the surface of the testing base 1, the testing base 1 being positioned beside the column 2, a pressure display 3 connected to the column 2, a fixing rod 4 connected to the side wall of the column 2, the fixing rod 4 being vertically positioned to the column 2, a hydraulic column 5 vertically connected to the fixing rod 4, the hydraulic column 5 being parallel to the column 2, a probe conversion assembly 6 connected to the hydraulic column 5, the probe conversion assembly 6 being positioned close to the sample cylinder 7, and the pressure display 3 being electrically connected to both the probe conversion assembly 6 and the hydraulic column 5.

[0061] The probe conversion assembly 6 includes a connecting plate 601, which is connected to the hydraulic column 5. A reducer 602 is provided on the surface of the connecting plate 601. A motor 603 is connected to the input end of the reducer 602, and a rotating shaft 604 is connected to the output end of the reducer 602. The rotating shaft 604 passes through the connecting plate 601 and is connected to the center of the turntable 605. Probes 606 are provided on the side wall of the turntable 605 along the circumferential direction.

[0062] There are no fewer than three probes 606, and the probes 606 are evenly spaced on the side wall of the turntable 605.

[0063] The pressure display 3 has a chip 301 inside, and a switch assembly 302 and a display screen 303 on its surface. The chip 301 is connected to the switch assembly 302 and the display screen 303 via signal lines, and the chip 301 is electrically connected to the hydraulic column 5, the motor 603 and the probe 606.

[0064] The sample cylinder 7 includes a first half-cylinder 701 and a second half-cylinder 702 that cooperate with each other. The first half-cylinder 701 and the second half-cylinder 702 are movably connected by a hinge 703. The side walls of the first half-cylinder 701 and the second half-cylinder 702 are respectively connected with a plurality of oppositely arranged connecting ears 704. The connecting ears 704 and the hinge 703 are symmetrically arranged about the axis of the sample cylinder 7. The plurality of connecting ears 704 are threadedly connected by bolts 705.

[0065] A sealing strip 706 is provided at the connection between the first half-bucket 701 and the second half-bucket 702.

[0066] The bottom of the sample tube 7 is connected to an annular fixing frame 707, the diameter of which is not greater than the diameter of the sample tube 7.

[0067] A fixing plate 708 is connected to the inner wall of the fixing frame 707. A telescopic tube 709 is connected to the fixing plate 708. A limit spring 710 is sleeved on the telescopic tube 709. The telescopic tube 709 passes through the bottom of the first half-bucket 701 and is connected to a stainless steel round head 711. A sealing ring 712 is connected between the stainless steel round head 711 and the bottom of the first half-bucket 701. A foot pedal 713 is connected to the fixing plate 708. The foot pedal 713 passes through the side wall of the fixing frame 707 and extends out.

Claims

1. A device for detecting the setting time of concrete, characterized in that, The sample tube (7) is attached to the bottom of the sample tube (7), and a test base (1) is attached to the bottom of the test base (1). A column (2) is vertically connected to the surface of the test base (1). The test base (1) is located next to the column (2). A pressure display (3) is connected to the column (2). A fixing rod (4) is connected to the side wall of the column (2). The fixing rod (4) is vertically connected to the column (2). A hydraulic column (5) is vertically connected to the fixing rod (4). The hydraulic column (5) is parallel to the column (2). A probe conversion assembly (6) is connected to the hydraulic column (5). The probe conversion assembly (6) is located close to the sample tube (7). The pressure display (3) is electrically connected to the probe conversion assembly (6) and the hydraulic column (5) respectively. The probe conversion assembly (6) includes a connecting plate (601), which is connected to a hydraulic column (5). A reducer (602) is provided on the surface of the connecting plate (601). A motor (603) is connected to the input end of the reducer (602), and a rotating shaft (604) is connected to the output end of the reducer (602). The rotating shaft (604) passes through the connecting plate (601) and is connected to the center of a turntable (605). A probe (606) is provided on the side wall of the turntable (605) along the circumferential direction.

2. The concrete setting time detection device according to claim 1, characterized in that, The number of probes (606) is not less than three, and the probes (606) are arranged at equal intervals on the side wall of the turntable (605).

3. The concrete setting time detection device according to claim 2, characterized in that, The pressure display (3) has a chip (301) inside, and a switch assembly (302) and a display screen (303) are provided on the surface of the pressure display (3). The chip (301) is connected to the switch assembly (302) and the display screen (303) respectively through signal lines. The chip (301) is electrically connected to the hydraulic column (5), the motor (603) and the probe (606) respectively.

4. The concrete setting time detection device according to claim 1, characterized in that, The sample tube (7) includes a first half-tube (701) and a second half-tube (702) that cooperate with each other. The first half-tube (701) and the second half-tube (702) are movably connected by a hinge (703). The side walls of the first half-tube (701) and the second half-tube (702) are respectively connected with a plurality of oppositely arranged connecting ears (704). The connecting ears (704) and the hinge (703) are symmetrically arranged about the axis of the sample tube (7). The plurality of connecting ears (704) are threadedly connected by bolts (705).

5. The concrete setting time detection device according to claim 4, characterized in that, A sealing strip (706) is provided at the connection between the first half-bucket (701) and the second half-bucket (702).

6. The concrete setting time detection device according to claim 5, characterized in that, The bottom of the sample tube (7) is connected to an annular fixing frame (707), the diameter of which is not greater than the diameter of the sample tube (7).

7. The concrete setting time detection device according to claim 6, characterized in that, The inner wall of the fixing frame (707) is connected to a fixing plate (708), and a telescopic tube (709) is connected to the fixing plate (708). The telescopic tube (709) is fitted with a limit spring (710). The telescopic tube (709) passes through the bottom of the first half-bucket (701) and is connected to a stainless steel round head (711). A sealing ring (712) is connected between the stainless steel round head (711) and the bottom of the first half-bucket (701). The fixing plate (708) is connected to a foot pedal (713), and the foot pedal (713) extends out after passing through the side wall of the fixing frame (707).

8. The concrete setting time detection device according to claim 7, characterized in that, There are at least two telescopic tubes (709), and the telescopic tubes (709) are equally spaced at the bottom of the first half-bucket (701).

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