A concrete setting time detection device and use method thereof

Abstract

The invention provides a concrete setting time detection device and a use method thereof, which relate to the technical field of concrete setting, and comprise a device base and a control panel, wherein four support rods are fixedly mounted on the upper end of the device base, a support top plate is fixedly mounted on the upper end of the four support rods, a bearing fixed plate is fixedly mounted on the four support rods, a measuring box bottom plate is fixedly mounted on the upper end of the bearing fixed plate, two measuring box side plates one are symmetrically arranged on the measuring box bottom plate, and two measuring box side plates two are symmetrically arranged on the measuring box bottom plate. The invention designs a concrete setting time detection device and adds a measuring box bottom plate, a measuring box side plate one and a measuring box side plate two, so that after the detection of a concrete mixture is completed, the measuring box side plate one and the measuring box side plate two are driven to be opened and closed by starting a servo motor, so that the concrete mixture after setting can be easily taken off and can be reused, thereby effectively improving the practicality of the device.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete setting, and more specifically, particularly relates to a concrete setting time detection device and a use method thereof. Background Art

[0002] Concrete setting time test is an important test method used to determine the time experienced by concrete at different stages from the beginning of mixing to the gradual loss of fluidity until complete hardening. The test is usually carried out under standard test conditions. Through the penetration resistance method, a specific instrument is used to measure the resistance of concrete to the probe to judge the setting state of concrete. In the initial setting stage, concrete begins to lose plasticity, and the penetration resistance reaches a certain value. In the final setting stage, concrete completely loses plasticity and the penetration resistance increases further.

[0003] The existing concrete setting time detection device has the following shortcomings: first, after the detection is completed, the solidified concrete mixture is attached to the supporting box, which is difficult to remove or the removal process is cumbersome, making it difficult to achieve quick cleaning and reuse, resulting in waste of resources and reducing the practicality of the device; second, the penetration resistance meter and the penetration needle lack the assistance of an electric push rod, and the penetration speed of the penetration needle is difficult to maintain stably, which greatly reduces the accuracy of the test data; finally, the penetration needle cannot move flexibly and can only detect fixed positions. The detection range is limited, and it is difficult to obtain comprehensive and accurate test data.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a concrete setting time detection device and a method of using the same are provided, in order to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a concrete setting time detection device and a use method thereof to solve the above problems.

[0006] A concrete setting time detection device and a method for using the same comprise a device base and a control panel, wherein four support rods are fixedly mounted on the upper end of the device base, a support top plate is fixedly mounted on the upper end of the four support rods, a bearing plate is fixedly mounted on the four support rods, a measuring box bottom plate is fixedly mounted on the upper end of the bearing plate, two measuring box side plates 1 are symmetrically arranged on the measuring box bottom plate, two measuring box side plates 2 are symmetrically arranged on the measuring box bottom plate, four sliding openings are provided on the bearing plate, arc-shaped connecting rods are rotatably mounted on the side ends of the measuring box side plates 1 and 2, each arc-shaped connecting rod is slidably mounted in the corresponding sliding opening, a temperature control component is arranged in the measuring box bottom plate, The temperature control component includes a cooling plate and a heating plate, as well as corresponding temperature sensors and controllers. The temperature control component is connected to the control panel by telecommunication. A connecting rod 1 is rotatably installed on the side end of each arc-shaped connecting rod, a connecting rod 2 is rotatably installed on the side end of each connecting rod 1, an L-shaped connecting rod is rotatably installed on the lower end of each connecting rod 2, and each L-shaped connecting rod is rotatably connected to the same square rotating plate. A driven shaft is rotatably installed in the device base, a servo motor is fixedly installed in the device base, a synchronous belt is arranged between the driven shaft and the servo motor, the square rotating plate is rotatably installed on the device base, and the rotating shaft of the driven shaft is fixedly connected to the rotating shaft of the square rotating plate.

[0007] Preferably, two sliding rods are fixedly installed at the lower end of the supporting top plate, an adjusting threaded rod is rotatably installed on the lower end of the supporting top plate, a sliding bearing block is slidably installed on the two sliding rods, and the sliding bearing block is threadably installed with the adjusting threaded rod.

[0008] Preferably, a sliding bearing block 2 is slidably installed inside the sliding bearing block 1, an adjusting threaded rod 2 is rotatably installed inside the sliding bearing block 1, the adjusting threaded rod 2 is threadedly installed with the sliding bearing block 2, an electric push rod is fixedly installed on the lower end of the sliding bearing block 2, a penetration resistance meter is fixedly installed on the telescopic rod of the electric push rod, a penetration needle is provided on the penetration resistance meter, and a telecommunication connection is established between the penetration needle and the control panel.

[0009] Preferably, the same load-bearing slide is slidably mounted on the four support rods, two slide grooves are symmetrically provided on the upper end of the load-bearing slide, two hydraulic push rods three are fixedly mounted on the load-bearing fixed plate, and the telescopic rods of the two hydraulic push rods three are fixedly connected to the load-bearing slide.

[0010] Preferably, a hydraulic push rod 1 is fixedly installed on the upper end of the load-bearing slide, the same load-bearing slide block is slidably installed on the two slide grooves, the telescopic rod of the hydraulic push rod 1 is fixedly connected to the side end of the load-bearing slide block, a slide block is slidably installed on the load-bearing slide block, two hydraulic push rods 2 are fixedly installed in the load-bearing slide block, and the telescopic rods of the two hydraulic push rods 2 are fixedly connected to the slide block.

[0011] Preferably, a stirring assembly is provided on the slide plate, the stirring assembly includes a driving motor and a stirring blade, and a snap-fit ​​groove is provided at the lower end of the supporting slide plate, and the snap-fit ​​groove is snap-fitted and installed on the measuring box side plate one and the measuring box side plate two.

[0012] Preferably, the method comprises the following steps:

[0013] S1: Start the servo motor, which drives the measuring box side plate 1 and the measuring box side plate 2 to close;

[0014] S2: Pour the concrete mixture into the measuring box side plate 1 and the measuring box side plate 2, start the hydraulic push rod 3, and the hydraulic push rod 3 cooperates with the engaging groove to engage the measuring box side plate 1 and the measuring box side plate 2;

[0015] S3: Start the hydraulic push rod 1, which pushes the load-bearing slider to move, and then start the hydraulic push rod 2, so that the telescopic rod of the hydraulic push rod 2 drives the slide plate to move downward, and the movement of the slide plate drives the mixing assembly to move downward, and then the mixing assembly is started to mix the concrete mixture;

[0016] S4: Start the electric push rod to drive the penetration needle to test the setting time of concrete. The penetration needle on the penetration resistance meter contacts the surface of the concrete mortar, and then evenly penetrates the mortar to a depth of (25±2)mm within (10±2)s. Record the penetration pressure, accurate to 10N, record the test time, accurate to 1min, and record the ambient temperature, accurate to 0.5℃. During the measurement, measure 1 to 2 points each time for each sample tube. The distance between each measuring point should be greater than twice the diameter of the penetration needle and not less than 15mm. The measuring points should be The distance between the sample cylinder wall should be no less than 25mm. Each sample should be tested for penetration resistance between 0.2 and 28MPa for at least 6 times. The last unit area penetration resistance should be no less than 28MPa. Starting from the time of water addition, the measurement should be started after 3 hours for ordinary concrete at room temperature, and the interval should be 0.5 hours each time. For early strength concrete or in the case of high temperature, the measurement should be started after 2 hours, and then measured every 0.5 hours. For slow setting concrete or low temperature, the measurement can be started after 5 hours, and then measured every 2 hours.

[0017] S5: Rotate the second adjusting threaded rod to drive the second sliding bearing block to adjust the longitudinal position, and rotate the first adjusting threaded rod to drive the first sliding bearing block to adjust the lateral position, thereby completing the position adjustment of the electric push rod, so that the electric push rod drives the penetration needle to detect the concrete mixture at different positions.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, the measuring box side plate one and the measuring box side plate two are opened, and then the solidified concrete mixture is taken out. By designing a concrete setting time detection device and adding the measuring box bottom plate, the measuring box side plate one and the measuring box side plate two, after the concrete mixture is detected, the measuring box side plate one and the measuring box side plate two are driven to open and close by starting the servo motor, so that the solidified concrete mixture can be taken out conveniently and can be reused, thereby effectively improving the practicality of the device.

[0020] In the present invention, the engaging groove moves downward to engage the measuring box side plate 1 and the measuring box side plate 2. By arranging the engaging groove on the bearing slide of the concrete setting time detection device, when the concrete mixture is detected, after the measuring box side plate 1 and the measuring box side plate 2 are closed, the engaging groove cooperates with the hydraulic push rod 3 to engage the measuring box side plate 1 and the measuring box side plate 2, thereby enhancing the stability of the closure between the measuring box side plate 1 and the measuring box side plate 2, thereby effectively improving the practicability of the device.

[0021] In the present invention, the stirring component is started to stir the concrete mixture. By designing and adding the stirring component to the concrete setting time detection device, the stirring component can effectively stir the concrete mixture during the preparation of the concrete mixture, making the concrete mixture more uniform, thereby effectively improving the accuracy of the monitoring data.

[0022] In the present invention, the penetration resistance meter moves downward to drive the penetration needle to move downward, and then the setting time of the concrete mixture is detected. By installing the penetration resistance meter and the penetration needle of the concrete setting time detection device on the electric push rod, when the concrete setting time is detected, the electric push rod can stably maintain the penetration speed of the penetration needle, thereby effectively improving the accuracy of the detection data.

[0023] In the present invention, the position of the electric push rod is adjusted so that the electric push rod drives the penetration needle to detect different positions of the concrete mixture. By designing the penetration needle of the concrete setting time detection device to be movable, different positions of the concrete can be detected when the concrete setting time is detected, thereby effectively improving the comprehensiveness of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a concrete setting time detection device of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the adjusting threaded rod 1 of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the sliding bearing block 2 of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the stirring assembly of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the engaging groove of the present invention;

[0029] Figure 6 It is a structural schematic diagram of a side plate 1 of a measuring box of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the arc-shaped connecting rod of the present invention;

[0031] Figure 8 It is a schematic diagram of the installation structure of the square rotating plate of the present invention.

[0032] In the figure, the corresponding relationship between the component names and the figure numbers is as follows: 1. device base; 11. support rod; 12. support top plate; 13. slide rod; 14. adjusting threaded rod one; 15. sliding bearing block one; 16. sliding bearing block two; 17. adjusting threaded rod two; 18. electric push rod; 19. penetration resistance meter; 2. penetration needle; 3. bearing slide plate; 31. slide groove; 32. hydraulic push rod one; 33. bearing slide block; 34. slide plate; 35. hydraulic push rod two; 36. stirring assembly; 37. engaging groove; 38. hydraulic push rod three; 4. bearing fixed plate; 41. measuring box bottom plate; 42. measuring box side plate one; 43. measuring box side plate two; 44. slide; 45. arc connecting rod; 46. connecting rod one; 47. connecting rod two; 48. L-shaped connecting rod; 49. square rotating plate; 51. driven shaft; 52. servo motor; 53. synchronous belt. DETAILED DESCRIPTION

[0033] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0034] See also Figure 1 - Figure 8The present invention provides a concrete setting time detection device and a method for using the same, comprising a device base 1 and a control panel, wherein four support rods 11 are fixedly installed on the upper end of the device base 1, and a support top plate 12 is fixedly installed on the upper ends of the four support rods 11, and a bearing plate 4 is fixedly installed on the four support rods 11, and a measuring box bottom plate 41 is fixedly installed on the upper end of the bearing plate 4, and two measuring box side plates 1 42 are symmetrically arranged on the measuring box bottom plate 41, and two measuring box side plates 2 43 are symmetrically arranged on the measuring box bottom plate 41, and four sliding openings 44 are opened on the bearing plate 4, and the measuring box side plates 1 42 and The side ends of the second side plate 43 of the measuring box are all rotatably installed with arc-shaped connecting rods 45, and each arc-shaped connecting rod 45 is slidably installed in the corresponding sliding port 44. A temperature control component is arranged in the bottom plate 41 of the measuring box. The temperature control component includes a cooling plate and a heating plate, as well as corresponding temperature sensors and controllers. The temperature control component is connected to the control panel by telecommunication. The temperature control component on the bottom plate 41 of the measuring box is used to control the temperature of the concrete half box. The side ends of each arc-shaped connecting rod 45 are rotatably installed with a connecting rod 1 46, and the side ends of each connecting rod 1 46 are rotatably installed with a connecting rod 2 47. The lower end of each connecting rod 47 is rotatably installed with an L-shaped connecting rod 48, and each L-shaped connecting rod 48 is rotatably connected to the same square rotating plate 49. A driven shaft 51 is rotatably installed in the device base 1, and a servo motor 52 is fixedly installed in the device base 1. A synchronous belt 53 is arranged between the driven shaft 51 and the servo motor 52. The square rotating plate 49 is rotatably installed on the device base 1, and the rotating shaft of the driven shaft 51 is fixedly connected to the rotating shaft of the square rotating plate 49. The servo motor 52 is started, and the output shaft of the servo motor 52 rotates to drive the synchronous belt 53, and the synchronous belt 53 is driven by force to drive the servo The motor 52 rotates, and the servo motor 52 is forced to rotate to drive the square rotating plate 49 to rotate, and the square rotating plate 49 is forced to rotate to drive the L-shaped connecting rod 48 to deflect, and the deflection of the L-shaped connecting rod 48 drives the connecting rod 2 47 to move, and the connecting rod 2 47 is forced to drive the connecting rod 1 46, and the connecting rod 1 46 is forced to drive the arc connecting rod 45, and the arc connecting rod 45 is forced to slide in the sliding mouth 44, and the sliding of the arc connecting rod 45 drives the measuring box side plate 1 42 and the measuring box side plate 2 43 to flip over, and the measuring box side plate 1 42 and the measuring box side plate 2 43 are opened, and then the solidified concrete mixture is removed.

[0035] Two slide bars 13 are fixedly installed at the lower end of the support top plate 12, and an adjusting threaded rod 14 is rotatably installed on the lower end of the support top plate 12. A sliding bearing block 15 is slidably installed on the two slide bars 13, and the sliding bearing block 15 is threadedly installed with the adjusting threaded rod 14. A sliding bearing block 2 16 is slidably installed in the sliding bearing block 15, and an adjusting threaded rod 2 17 is rotatably installed in the sliding bearing block 15, wherein the adjusting threaded rod 2 17 is threadedly installed with the sliding bearing block 2 16, and the adjusting threaded rod 2 17 is rotated to drive the sliding bearing block 2 16 to adjust the longitudinal position, and the adjusting threaded rod 14 is rotated to drive the sliding bearing block 15 The lateral position is adjusted to complete the position adjustment of the electric push rod 18, so that the electric push rod 18 drives the penetration needle 2 to detect the concrete mixture at different positions. The electric push rod 18 is fixedly installed on the lower end of the sliding bearing block 16, and a penetration resistance meter 19 is fixedly installed on the telescopic rod of the electric push rod 18. The penetration resistance meter 19 is provided with the penetration needle 2. The penetration needle 2 is connected to the control panel by telecommunication. The electric push rod 18 is started, and the telescopic rod of the electric push rod 18 drives the penetration resistance meter 19 to move downward. The downward movement of the penetration resistance meter 19 drives the penetration needle 2 to move downward, and then the setting time of the concrete mixture is detected.

[0036] The same load-bearing slide 3 is slidably mounted on the four support rods 11, and two slide grooves 31 are symmetrically provided on the upper end of the load-bearing slide 3. Two hydraulic push rods 38 are fixedly mounted on the load-bearing fixed plate 4, and the telescopic rods of the two hydraulic push rods 38 are fixedly connected to the load-bearing slide 3. A hydraulic push rod 1 32 is fixedly mounted on the upper end of the load-bearing slide 3. The same load-bearing slider 33 is slidably mounted on the two slide grooves 31, and the telescopic rod of the hydraulic push rod 1 32 is fixedly connected to the side end of the load-bearing slider 33. A slide plate 34 is slidably mounted on the load-bearing slider 33, and two hydraulic push rods 2 35 are fixedly mounted in the load-bearing slider 33, and the telescopic rods of the two hydraulic push rods 2 35 are fixedly connected to the slide plate 34. A stirring assembly 36 is provided on the slide plate 34, and the stirring assembly 3 6 includes a driving motor and a stirring blade, the hydraulic push rod 1 32 is started, the hydraulic push rod 1 32 pushes the bearing slide block 33 to move, and then the hydraulic push rod 2 35 is started, the telescopic rod of the hydraulic push rod 2 35 drives the slide plate 34 to move downward, the movement of the slide plate 34 drives the stirring assembly 36 to move downward, and then the stirring assembly 36 is started to stir the concrete mixture, the lower end of the bearing slide plate 3 is provided with a clamping groove 37, the clamping groove 37 is clamped and installed on the measuring box side plate 1 42 and the measuring box side plate 2 43, the hydraulic push rod 3 38 is started, the telescopic rod of the hydraulic push rod 3 38 drives the bearing slide plate 3, the bearing slide plate 3 is forced to move downward, the bearing slide plate 3 moves to drive the clamping groove 37, the clamping groove 37 moves downward to clamp the measuring box side plate 1 42 and the measuring box side plate 2 43.

[0037] The following steps are involved:

[0038] S1: Start the servo motor 52, which drives the measuring box side plate 1 42 and the measuring box side plate 2 43 to close;

[0039] S2: Pour the concrete mixture into the measuring box side plate 1 42 and the measuring box side plate 2 43, start the hydraulic push rod 3 38, and the hydraulic push rod 3 38 cooperates with the engaging groove 37 to engage the measuring box side plate 1 42 and the measuring box side plate 2 43;

[0040] S3: Start the hydraulic push rod 1 32, the hydraulic push rod 1 32 pushes the bearing slide block 33 to move, then start the hydraulic push rod 2 35, the telescopic rod of the hydraulic push rod 2 35 drives the slide plate 34 to move downward, the movement of the slide plate 34 drives the stirring assembly 36 to move downward, and then start the stirring assembly 36 to stir the concrete mixture;

[0041] S4: Start the electric push rod 18 to drive the penetration needle 2 to test the setting time of the concrete. The penetration needle 2 on the penetration resistance meter 19 contacts the surface of the concrete mortar, and then the penetration needle 2 is uniformly penetrated into the mortar to a depth of (25±2) mm within (10±2) s. Record the penetration pressure, accurate to 10N, record the test time, accurate to 1min, and record the ambient temperature, accurate to 0.5℃. During the measurement, each sample tube measures 1 to 2 points each time, and the distance between each measuring point should be greater than twice the diameter of the penetration needle 2 and not less than 15mm , the distance between the measuring point and the wall of the sample tube should be no less than 25mm. Each sample should be tested for penetration resistance between 0.2 and 28MPa for at least 6 times. The last unit area penetration resistance should be no less than 28MPa. Starting from the time of water addition, the measurement should be started after 3 hours for ordinary concrete at room temperature, and the interval is 0.5h each time. For early-strength concrete or in the case of high temperature, the measurement should be started after 2 hours, and then measured every 0.5h. For slow-setting concrete or low temperature, the measurement can be started after 5 hours, and then measured every 2 hours.

[0042] S5: Rotate and adjust the threaded rod 17 to drive the sliding bearing block 16 to adjust the longitudinal position, and rotate and adjust the threaded rod 14 to drive the sliding bearing block 15 to adjust the lateral position, thereby completing the position adjustment of the electric push rod 18, so that the electric push rod 18 drives the penetration needle 2 to detect different positions of the concrete mixture.

[0043] Working principle:

[0044] In the first step, when the concrete setting time detection device is used, the servo motor 52 is started, and the output shaft of the servo motor 52 drives the synchronous belt 53, and the synchronous belt 53 is forced to drive the servo motor 52 to rotate, and the servo motor 52 is forced to rotate to drive the square rotating plate 49 to rotate, and the square rotating plate 49 is forced to rotate to drive the L-shaped connecting rod 48 to deflect, and the deflection of the L-shaped connecting rod 48 drives the second connecting rod 47 to move, and the second connecting rod 47 is forced to drive the first connecting rod 46, and the first connecting rod 46 is forced to drive the arc connecting rod 45, and the arc The connecting rod 45 is forced to slide in the sliding mouth 44, and the sliding of the arc connecting rod 45 pushes the measuring box side plate 1 42 and the measuring box side plate 2 43 to flip over, and the measuring box side plate 1 42 and the measuring box side plate 2 43 are closed, and then the concrete mixture is poured into the closed container composed of the measuring box side plate 1 42 and the measuring box side plate 2 43, and then the penetration needle 2 is used to detect the concrete mixture using the penetration resistance method. After the detection is completed, the servo motor 52 is started, and the output shaft of the servo motor 52 rotates to drive the synchronous belt 53, and the synchronous The belt 53 is forced to drive the servo motor 52 to rotate, the servo motor 52 is forced to rotate and drive the square rotating plate 49 to rotate, the square rotating plate 49 is forced to rotate and drive the L-shaped connecting rod 48 to deflect, the deflection of the L-shaped connecting rod 48 drives the second connecting rod 47 to move, the second connecting rod 47 is forced to drive the first connecting rod 46, the first connecting rod 46 is forced to drive the arc connecting rod 45, the arc connecting rod 45 is forced to slide in the sliding mouth 44, the sliding of the arc connecting rod 45 drives the measuring box side plate 1 42 and the measuring box side plate 2 43 to flip, The measuring box side plate 1 42 and the measuring box side plate 2 43 are opened, and then the solidified concrete mixture is taken down. By designing the concrete setting time detection device and adding the measuring box bottom plate 41, the measuring box side plate 1 42 and the measuring box side plate 2 43, after the concrete mixture is detected, the measuring box side plate 1 42 and the measuring box side plate 2 43 are driven to open and close by starting the servo motor 52, so that the solidified concrete mixture can be taken down conveniently and can be reused, which effectively improves the practicability of the device.

[0045] In the second step, when the concrete setting time detection device is used, the servo motor 52 is started, and the servo motor 52 drives the measuring box side plate 1 42 and the measuring box side plate 2 43 to close, and then the concrete mixture is poured into the measuring box side plate 1 42 and the measuring box side plate 2 43, and then the hydraulic push rod 3 38 is started, and the telescopic rod of the hydraulic push rod 3 38 drives the bearing slide 3, and the bearing slide 3 is forced to move downward, and the bearing slide 3 moves to drive the engaging groove 37, and the engaging groove 37 moves downward to engage the measuring box side plate 1 42 and the measuring box side plate 2 43. By providing the engaging groove 37 on the bearing slide 3 of the concrete setting time detection device, when the concrete mixture is detected, after the measuring box side plate 1 42 and the measuring box side plate 2 43 are closed, the engaging groove 37 cooperates with the hydraulic push rod 3 38 to engage the measuring box side plate 1 42 and the measuring box side plate 2 43, thereby enhancing the stability of the closure between the measuring box side plate 1 42 and the measuring box side plate 2 43, thereby effectively improving the practicality of the device.

[0046] The third step, when the concrete setting time detection device is used, the servo motor 52 is started, and the servo motor 52 drives the measuring box side plate 1 42 and the measuring box side plate 2 43 to close, and then the concrete mixture is poured into the measuring box side plate 1 42 and the measuring box side plate 2 43, and then the hydraulic push rod 3 38 is started, and the hydraulic push rod 3 38 cooperates with the engaging groove 37 to engage the measuring box side plate 1 42 and the measuring box side plate 2 43, and then the hydraulic push rod 1 32 is started, and the hydraulic push rod 1 32 pushes the bearing slider 33 to move, and then the hydraulic push rod 2 35 is started, and the telescopic rod of the hydraulic push rod 2 35 drives the slide plate 34 to move downward, and the movement of the slide plate 34 drives the stirring assembly 36 to move downward, and then the stirring assembly 36 is started to stir the concrete mixture. By designing the concrete setting time detection device and adding the stirring assembly 36, in the process of preparing the concrete mixture, the stirring assembly 36 can effectively stir the concrete mixture, so that the concrete mixture is more uniform, thereby effectively improving the accuracy of the monitoring data.

[0047] In the fourth step, when the concrete setting time detection device is used, the servo motor 52 is started, and the servo motor 52 drives the measuring box side plate 1 42 and the measuring box side plate 2 43 to close, and then the concrete mixture is poured into the measuring box side plate 1 42 and the measuring box side plate 2 43, and then the hydraulic push rod 3 38 is started, and the hydraulic push rod 3 38 cooperates with the engaging groove 37 to engage the measuring box side plate 1 42 and the measuring box side plate 2 43, and then the mixing component 36 is used to mix the concrete mixture evenly, and after mixing is completed, the starting slide plate 34 is raised to raise the mixing component 36, and then the hydraulic push rod 3 is started. 2 drives the stirring assembly 36 to move out of the top of the concrete mixture, and then starts the electric push rod 18. The telescopic rod of the electric push rod 18 drives the penetration resistance meter 19 to move downward. The downward movement of the penetration resistance meter 19 drives the penetration needle 2 to move downward, and then the setting time of the concrete mixture is detected. By installing the penetration resistance meter 19 and the penetration needle 2 of the concrete setting time detection device on the electric push rod 18, when the concrete setting time is detected, the electric push rod 18 can stably maintain the injection speed of the penetration needle 2, thereby effectively improving the accuracy of the detection data.

[0048] Step 5: When the concrete setting time detection device is used, the servo motor 52 is started, and the servo motor 52 drives the measuring box side plate 1 42 and the measuring box side plate 2 43 to close, and then the concrete mixture is poured into the measuring box side plate 1 42 and the measuring box side plate 2 43, and then the hydraulic push rod 3 38 is started, and the hydraulic push rod 3 38 cooperates with the engaging groove 37 to engage the measuring box side plate 1 42 and the measuring box side plate 2 43, and then the stirring assembly 36 is used to stir the concrete mixture evenly, and then the stirring assembly 36 is removed, and the electric push rod 18 is started to drive the penetration needle 2 to set. For setting time detection, the adjusting threaded rod 17 is rotated to drive the sliding bearing block 16 to adjust the longitudinal position, and the adjusting threaded rod 14 is rotated to drive the sliding bearing block 15 to adjust the lateral position, thereby completing the position adjustment of the electric push rod 18, so that the electric push rod 18 drives the penetration needle 2 to detect different positions of the concrete mixture. By designing the penetration needle 2 of the concrete setting time detection device to be movable, when detecting the concrete setting time, it is possible to detect different positions of the concrete, thereby effectively improving the comprehensiveness of the detection data.

[0049] The examples of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A concrete setting time detection device, comprising a device base (1) and a control panel, characterized in that: Four support rods (11) are fixedly mounted on the upper end of the device base (1), and a support top plate (12) is fixedly mounted on the upper end of the four support rods (11). A bearing plate (4) is fixedly mounted on the four support rods (11), and a measuring box bottom plate (41) is fixedly mounted on the upper end of the bearing plate (4). Two measuring box side plates (1) (42) are symmetrically arranged on the measuring box bottom plate (41), and two measuring box side plates (2) (43) are symmetrically arranged on the measuring box bottom plate (41). Four sliding openings (44) are opened on the bearing plate (4), and arc-shaped connecting rods (45) are rotatably mounted on the side ends of the measuring box side plates (1) (42) and the measuring box side plates (2) (43); Each of the arc-shaped connecting rods (45) is slidably mounted in a corresponding sliding opening (44); a temperature control component is arranged in the measuring box bottom plate (41); the temperature control component includes a cooling plate and a heating plate, as well as a corresponding temperature sensor and a controller; and the temperature control component is connected to the control panel by telecommunication; A connecting rod 1 (46) is rotatably mounted on the side end of each arc-shaped connecting rod (45), a connecting rod 2 (47) is rotatably mounted on the side end of each connecting rod 1 (46), an L-shaped connecting rod (48) is rotatably mounted on the side end of each connecting rod 2 (47), and each L-shaped connecting rod (48) is rotatably connected to the same square rotating plate (49), a driven shaft (51) is rotatably mounted in the device base (1), a servo motor (52) is fixedly mounted in the device base (1), and a synchronous belt (53) is provided between the driven shaft (51) and the servo motor (52); The square rotating plate (49) is rotatably mounted on the device base (1), and the rotating shaft of the driven shaft (51) is fixedly connected to the rotating shaft of the square rotating plate (49).

2. A concrete setting time detection device as claimed in claim 1, characterized in that: Two sliding rods (13) are fixedly mounted on the lower end of the supporting top plate (12); an adjusting threaded rod (14) is rotatably mounted on the lower end of the supporting top plate (12); and a sliding bearing block (15) is slidably mounted on the two sliding rods (13); Wherein, the sliding bearing block 1 (15) is threadedly mounted on the adjusting threaded rod 1 (14).

3. A concrete setting time detection device as claimed in claim 2, characterized in that: A second sliding bearing block (16) is slidably mounted in the first sliding bearing block (15), and a second adjusting threaded rod (17) is rotatably mounted in the first sliding bearing block (15); Wherein, the second adjusting threaded rod (17) is threadably mounted on the second sliding bearing block (16).

4. A concrete setting time detection device as claimed in claim 3, characterized in that: An electric push rod (18) is fixedly mounted on the lower end of the second sliding bearing block (16); a penetration resistance meter (19) is fixedly mounted on the telescopic rod of the electric push rod (18); and a penetration needle (2) is provided on the penetration resistance meter (19); Wherein, the penetration needle (2) is connected to the control panel by telecommunication.

5. A concrete setting time detection device as claimed in claim 4, characterized in that: The same load-bearing slide plate (3) is slidably mounted on the four support rods (11); Wherein, two slide grooves (31) are symmetrically provided at the upper end of the bearing slide plate (3).

6. A concrete setting time detection device as claimed in claim 5, characterized in that: Two hydraulic push rods (38) are fixedly mounted on the bearing plate (4); The telescopic rods of the two hydraulic push rods (38) are both fixedly connected to the bearing slide plate (3).

7. A concrete setting time detection device as claimed in claim 6, characterized in that: A hydraulic push rod (32) is fixedly mounted on the upper end of the load-bearing slide plate (3), and a same load-bearing slide block (33) is slidably mounted on the two slide grooves (31); The telescopic rod of the hydraulic push rod 1 (32) is fixedly connected to the side end of the bearing slide block (33).

8. A concrete setting time detection device as claimed in claim 7, characterized in that: A slide plate (34) is slidably mounted on the load-bearing slide block (33), and two hydraulic push rods (35) are fixedly mounted inside the load-bearing slide block (33); The telescopic rods of the two hydraulic push rods (35) are both fixedly connected to the slide plate (34).

9. A concrete setting time detection device as claimed in claim 8, characterized in that: The slide plate (34) is provided with a stirring assembly (36), and the lower end portion of the supporting slide plate (3) is provided with a locking groove (37); The stirring assembly (36) comprises a driving motor and a stirring blade, and the engaging groove (37) is engaged and mounted on the first measuring box side plate (42) and the second measuring box side plate (43).

10. A method for using a concrete setting time detection device as claimed in claim 9, characterized in that: The following steps are involved: S1: starting the servo motor (52), the servo motor (52) drives the measuring box side plate 1 (42) and the measuring box side plate 2 (43) to close; S2: pouring the concrete mixture into the first side plate (42) and the second side plate (43) of the measuring box, starting the third hydraulic push rod (38), and the third hydraulic push rod (38) cooperates with the engaging groove (37) to engage the first side plate (42) and the second side plate (43) of the measuring box; S3: starting the hydraulic push rod 1 (32), the hydraulic push rod 1 (32) pushes the bearing slide block (33) to move, then starting the hydraulic push rod 2 (35), the telescopic rod of the hydraulic push rod 2 (35) drives the slide block (34) to move downward, the movement of the slide block (34) drives the stirring assembly (36) to move downward, and then starting the stirring assembly (36) to stir the concrete mixture; S4: Start the electric push rod (18) to drive the penetration needle (2) to test the setting time of concrete. The penetration needle (2) on the penetration resistance meter (19) contacts the surface of the concrete mortar. Then, within (10±2) seconds, the penetration needle (2) is uniformly penetrated into the mortar to a depth of (25±2) mm. The penetration pressure is recorded to an accuracy of 10N. The test time is recorded to an accuracy of 1min. The ambient temperature is recorded to an accuracy of 0.5°C. During the measurement, 1 to 2 points are measured for each sample tube each time. The distance between the measurement points should be greater than twice the diameter of the penetration needle (2) and should not be less than 0.5°C. Less than 15mm, the distance between the measuring point and the sample cylinder wall should be not less than 25mm, and each sample should be tested for penetration resistance between 0.2 and 28MPa for at least 6 times. The last unit area penetration resistance should be not less than 28MPa. Starting from the time of water addition, the measurement should be started after 3 hours for ordinary concrete at room temperature, and the interval is 0.5h each time. For early strength concrete or in the case of high temperature, the measurement should be started after 2 hours, and then measured every 0.5h. For slow setting concrete or low temperature, the measurement can be started after 5 hours, and then measured every 2 hours. S5: The second adjusting threaded rod (17) is rotated to drive the second sliding bearing block (16) to adjust the longitudinal position, and the first adjusting threaded rod (14) is rotated to drive the first sliding bearing block (15) to adjust the lateral position, thereby completing the position adjustment of the electric push rod (18), so that the electric push rod (18) drives the penetration needle (2) to detect different positions of the concrete mixture.

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