Concrete slump testing device

Abstract

The application provides a concrete slump detection device, belonging to the technical field of concrete detection, comprising a frame, a detection assembly, a concrete model assembly, a driving assembly and a solidification assembly, the concrete model assembly is arranged inside the frame and is used for surrounding the concrete into a columnar structure, the driving assembly is installed on the inner wall of the frame and is used for driving the concrete model assembly to move, so that the concrete model assembly is separated from the columnar concrete, the detection assembly is movably arranged inside the frame and is used for detecting the height of the collapsed concrete, and the solidification assembly is arranged inside the frame. Compared with the prior art, a layer of solid shell can be formed on the surface of the collapsed concrete before detection, so that further collapse of the concrete caused by the pressure from the detection plate when the detection plate acts on the concrete can be avoided, and the accuracy and reliability of the detection result are improved.

Description

Technical Field

[0001] This invention belongs to the field of concrete testing technology, specifically a concrete slump testing device. Background Technology

[0002] Currently, concrete slump mainly refers to the plasticizing and pumpability properties of concrete. Factors affecting concrete slump mainly include changes in gradation, water content, weighing deviation of weighing instruments, dosage of admixtures, and cement temperature.

[0003] In existing technologies, when testing the slump of concrete, the testing rod is usually slid along the scale after the concrete has slumped, so that the testing rod is in contact with the concrete surface. The scale corresponding to one end of the testing rod can show the height of the concrete after slumping. The slump of the concrete is calculated by using the ratio of this height value to the original height value of the concrete. This method can easily apply external pressure to the concrete when the testing rod is in contact with the concrete surface, which can cause the concrete to collapse further, resulting in low accuracy of the test results. Summary of the Invention

[0004] To address the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a concrete slump testing device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A concrete slump testing device includes a frame, a testing component, a concrete model component, a driving component, and a curing component.

[0007] The concrete model assembly is located inside the frame and is used to enclose the concrete into a columnar structure.

[0008] The drive assembly is mounted on the inner wall of the frame and is used to move the concrete model assembly, thereby separating the concrete model assembly from the columnar concrete.

[0009] The detection component is movably mounted inside the frame and is used to detect the height of the collapsed concrete.

[0010] The curing component is disposed inside the frame and is used to deliver a curing medium to the collapsed concrete surface to drive the collapsed concrete surface to form a solid shell.

[0011] During testing, concrete is placed inside the concrete model assembly. After being vibrated and compacted, the concrete model assembly is moved using a drive assembly, causing it to separate from the compacted columnar concrete inside. After a period of stillness, the columnar concrete collapses. A curing medium is then delivered to the surface of the collapsed concrete using a curing assembly. When the curing medium acts on the concrete surface, it forms a solid shell. At this point, the detection assembly moves along the inside of the frame to detect and record the height of the concrete with the solid shell on the surface after the collapse. The ratio of this height to the height of the model assembly is the slump of the concrete.

[0012] As a further improvement of the present invention: the concrete model assembly includes two sets of oppositely distributed templates, the two sets of templates can be closed to form a cylindrical structure, and a fixing plate is fixedly provided on one side of each set of templates.

[0013] The drive assembly includes a motor and a drive shaft mounted on the output end of the motor.

[0014] The motor is fixedly mounted on the inner wall of the frame by a mounting bracket. The drive shaft is provided with two sets of threaded segments with opposite directions. The drive shaft passes through the two sets of fixed plates and is threadedly engaged with the two sets of fixed plates by the two sets of threaded segments respectively.

[0015] As a further improvement of the present invention: a guide rail is fixedly installed on the inner wall of the frame, and the guide rail is distributed parallel to the drive shaft.

[0016] Both sets of fixing plates have a slot at the end furthest from the corresponding template that is adapted to the guide rail.

[0017] As a further improvement of the present invention: a funnel is provided on one side of each of the two sets of templates.

[0018] As a further improvement of the present invention: the detection assembly includes a guide rod, a detection plate, and a guide sleeve.

[0019] The guide rod is fixedly installed inside the frame. The guide rod has scale lines along its length on its sidewall. The guide sleeve is movably sleeved on the outside of the guide rod. One side of the detection plate is fixedly connected to the guide sleeve via a connecting rod.

[0020] As a further improvement of the present invention: one side of the guide sleeve is also connected to the inner wall of the frame through an elastic element, the elastic element being used to provide elastic tension to the guide sleeve.

[0021] As a further improvement to the present invention: the curing assembly includes a curing medium storage tank, a hose, and a pump body.

[0022] The detection plate is hollow inside, and several evenly distributed through holes are opened on one side of the detection plate. The pump body is disposed inside the detection plate, and the curing medium storage tank stores the curing medium.

[0023] One end of the hose is connected to the inner cavity of the solidified medium storage tank, and the other end extends into the inside of the detection plate and is connected to the pump body.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] In this embodiment of the invention, during testing, concrete is placed inside a concrete model assembly. After being vibrated and compacted, the concrete model assembly is moved using a drive assembly, causing it to separate from the compacted columnar concrete inside. After a period of stillness, the columnar concrete collapses. A curing medium is then delivered to the surface of the collapsed concrete using a curing assembly. When the curing medium acts on the concrete surface, it forms a solid shell. At this point, the detection assembly moves along the inside of the frame to detect and record the height of the concrete with the solid shell on the surface after the collapse. The ratio of this height to the height of the model assembly is the slump of the concrete. Compared to existing technologies, this method allows a solid shell to form on the surface of the collapsed concrete before testing, thus preventing further collapse of the concrete due to pressure from the detection plate when it acts on the concrete, thereby improving the accuracy and reliability of the test results. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a concrete slump testing device.

[0027] Figure 2 This is a schematic diagram of the drive component in a concrete slump testing device.

[0028] Figure 3 This is a schematic diagram of the structure of the detection plate in a concrete slump testing device.

[0029] In the diagram: 10-Frame, 20-Detection component, 201-Guide rod, 202-Scale line, 203-Detection plate, 204-Connecting rod. 205-Guide sleeve, 206-Elastic element, 207-Through hole, 30-Concrete model component, 301-Formwork, 302-Fixing plate, 303-Slot, 40-Drive component, 401-Motor, 402-Mounting base, 403-Drive shaft, 404-Threaded section, 50-Curing component, 501-Hose, 502-Curing agent storage tank, 60-Function funnel. Detailed Implementation

[0030] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0031] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0032] Please see Figure 1 This embodiment provides a concrete slump testing device, including a frame 10, a testing component 20, a concrete model component 30, a driving component 40, and a curing component 50. The concrete model component 30 is disposed inside the frame 10 and is used to enclose the concrete into a columnar structure. The driving component 40 is installed on the inner wall of the frame 10 and is used to drive the concrete model component 30 to move, so that the concrete model component 30 separates from the columnar concrete. The testing component 20 is movably disposed inside the frame 10 and is used to detect the height of the slumped concrete. The curing component 50 is disposed inside the frame 10 and is used to deliver a curing medium to the surface of the slumped concrete to drive the surface of the slumped concrete to form a solid shell.

[0033] During testing, concrete is placed inside the concrete model assembly 30. After being vibrated and compacted, the concrete model assembly 30 is moved by the drive assembly 40, causing the concrete model assembly 30 to separate from the compacted columnar concrete inside. After a period of stillness, the columnar concrete collapses. The curing assembly 50 delivers a curing medium to the surface of the collapsed concrete. When the curing medium acts on the concrete surface, it forms a solid shell. At this time, the detection assembly 20 moves along the inside of the frame 10 to detect and record the height of the concrete with a solid shell on the surface after the collapse. The ratio of this height value to the height value of the model assembly 30 is the slump of the concrete.

[0034] Please see Figure 1 and Figure 2 In one embodiment, the concrete model assembly 30 includes two sets of oppositely distributed templates 301. The two sets of templates 301 can be closed to form a cylindrical structure. A fixing plate 302 is fixedly provided on one side of each set of templates 301. The drive assembly 40 includes a motor 401 and a drive shaft 403 installed at the output end of the motor 401. The motor 401 is fixedly installed on the inner wall of the frame 10 through a mounting base 402. The drive shaft 403 is provided with two sets of threaded sections 404 with opposite directions. The drive shaft 403 passes through the two sets of fixing plates 302 and is threadedly engaged with the two sets of fixing plates 302 through the two sets of threaded sections 404 respectively.

[0035] Initially, the two sets of templates 301 are closed to form a cylindrical structure. The external concrete is placed between the two sets of templates 301, and the concrete is vibrated using a vibrator. After the concrete is compacted, the motor 401 is started, which drives the drive shaft 403 to rotate. Through the threaded engagement between the two sets of threaded sections 404 and the two sets of fixing plates 302, the two sets of templates 301 are moved away from each other, causing the two sets of templates 301 to separate from the columnar concrete inside them. After a period of stillness, the columnar concrete collapses. At this time, the curing component 50 delivers a curing medium to the surface of the collapsed concrete, forming a solid shell on the concrete surface. This, combined with the movement of the detection component 20 inside the frame 10, improves the detection effect of the collapsed concrete height and enhances the accuracy of the detection results.

[0036] Please see Figure 1 and Figure 2 In one embodiment, a guide rail is fixedly installed on the inner wall of the frame 10. The guide rail is distributed parallel to the drive shaft 403. Each of the two sets of fixing plates 302 has a slot 303 adapted to the guide rail at the end away from the corresponding template 301.

[0037] Both sets of fixing plates 302 have one end that slides into the guide rail through the slot 303, so that when the drive shaft 403 rotates, it can smoothly drive the two sets of templates 301 to move towards each other.

[0038] Please see Figure 1 In one embodiment, a funnel 60 is provided on one side of each of the two sets of templates 301. The funnel 60 facilitates the smooth pouring of external concrete into the inside of the two sets of templates 301. After the concrete is compacted, a portion of the concrete column is located inside the funnel 60. During testing, the funnel 60 can be removed from one side of the two sets of templates 301, and the concrete inside the funnel 60 can be scraped away, so that one side of the concrete column is flush with one end of the two sets of templates 301. This arrangement makes the original height of the concrete column consistent with the height of the two sets of templates 301, which facilitates the calculation of the original height of the concrete column.

[0039] Please see Figure 1 In one embodiment, the detection assembly 20 includes a guide rod 201, a detection plate 203, and a guide sleeve 205. The guide rod 201 is fixedly installed inside the frame 10. The side wall of the guide rod 201 is provided with scale lines 202 along the length direction. The guide sleeve 205 is movably sleeved outside the guide rod 201. One side of the detection plate 203 is fixedly connected to the guide sleeve 205 through a connecting rod 204.

[0040] After the curing component 50 delivers the curing medium to the surface of the collapsed concrete and forms a solid shell on the concrete surface, the operation plate 203 is moved to drive the guide sleeve 205 to slide along the length of the guide rod 201 until the detection plate 203 acts on the top of the concrete. At this time, the reading of the scale line 202 corresponding to one side of the guide sleeve 205 is read. This reading is the height of the collapsed concrete, and the ratio of this reading to the height of the template 301 is the slump of the concrete. In this embodiment, the purpose of delivering the curing medium to the surface of the collapsed concrete by the curing component 50 and forming a solid shell on the concrete surface is to prevent the concrete from collapsing further due to the pressure from the detection plate 203 when it acts on the concrete, thereby improving the accuracy of the test results.

[0041] Please see Figure 1 In one embodiment, one side of the guide sleeve 205 is also connected to the inner wall of the frame 10 via an elastic element 206. The elastic element 206 is used to provide elastic tension to the guide sleeve 205, so that the detection plate 203 can be released after the test is completed. Under the pull of the elastic element 206, the detection plate 203 drives the guide sleeve 205 to slide in the opposite direction along the guide rod 201, thereby realizing the automatic reset of the detection plate 203 to meet the requirements of the next concrete slump test.

[0042] In one embodiment, the elastic element 206 can be a spring or a metal sheet, and there is no limitation here.

[0043] Please see Figure 1 and Figure 3 In one embodiment, the curing component 50 includes a curing medium storage tank 502, a hose 501, and a pump (not shown in the figure). The detection plate 203 is hollow inside, and a plurality of evenly distributed through holes 207 are opened on one side of the detection plate 203. The pump is disposed inside the detection plate 203. The curing medium storage tank 502 stores curing medium inside. One end of the hose 501 communicates with the inner cavity of the curing medium storage tank 502, and the other end extends into the detection plate 203 and is connected to the pump.

[0044] The curing medium inside the curing medium storage tank 502 is drawn from the hose 501 into the detection plate 203 by the pump body, and then output through the through hole 207 and applied to the collapsed concrete surface, so that a solid shell is formed on the concrete surface, ensuring that the concrete will not collapse and deform further when the detection plate 203 is applied to the collapsed concrete surface, thereby improving the accuracy of the test results.

[0045] In one embodiment, the curing medium can be a refrigerant or hot air. When the curing medium is a refrigerant, the refrigerant acts on the collapsed concrete surface to freeze the moisture in the concrete, forming a solid ice layer on the concrete surface. When the curing medium is hot air, the hot air acts on the collapsed concrete surface to accelerate the curing speed of the concrete surface layer, thereby forming a solid concrete shell.

[0046] In this embodiment of the invention, during testing, concrete is placed inside the concrete model assembly 30. After being vibrated and compacted, the concrete model assembly 30 is moved by the driving assembly 40, causing the concrete model assembly 30 to separate from the compacted columnar concrete inside. After a period of stillness, the columnar concrete collapses. The curing assembly 50 delivers a curing medium to the surface of the collapsed concrete. When the curing medium acts on the concrete surface, it forms a solid shell. At this time, the detection assembly 20 moves along the inside of the frame 10 to detect and record the height of the concrete with a solid shell on the surface after the collapse. The ratio of this height value to the height value of the model assembly 30 is the slump of the concrete. Compared with the prior art, a solid shell can be formed on the surface of the collapsed concrete before testing, which can prevent the concrete from collapsing further due to the pressure from the detection plate 203 when it acts on the concrete, thereby improving the accuracy and reliability of the test results.

[0047] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A concrete slump testing device, characterized in that, Includes the frame, testing components, concrete model components, drive components, and curing components. The concrete model assembly is located inside the frame and is used to enclose the concrete into a columnar structure. The drive assembly is mounted on the inner wall of the frame and is used to move the concrete model assembly, thereby separating the concrete model assembly from the columnar concrete. The detection component is movably mounted inside the frame and is used to detect the height of the collapsed concrete. The curing component is disposed inside the frame and is used to deliver a curing medium to the collapsed concrete surface to drive the collapsed concrete surface to form a solid shell. During testing, concrete is placed inside the concrete model assembly. After being vibrated and compacted, the concrete model assembly is moved by the drive assembly, causing it to separate from the compacted columnar concrete inside. After a period of stillness, the columnar concrete collapses. The curing assembly delivers a curing medium to the surface of the collapsed concrete. When the curing medium acts on the concrete surface, it forms a solid shell. At this point, the detection assembly moves along the inside of the frame to detect and record the height of the concrete with the solid shell on the surface after the collapse. The ratio of this height to the height of the model assembly is the slump of the concrete. When the curing medium is a refrigerant, the refrigerant acts on the collapsed concrete surface, causing the moisture in the concrete to freeze and form a solid ice layer on the concrete surface. When the curing medium is hot air, the hot air acts on the collapsed concrete surface, which can accelerate the curing speed of the concrete surface layer to form a solid concrete shell.

2. The concrete slump testing device according to claim 1, characterized in that, The concrete model assembly includes two sets of templates distributed opposite each other. The two sets of templates can be closed to form a cylindrical structure, and a fixing plate is fixedly installed on one side of each set of templates. The drive assembly includes a motor and a drive shaft mounted on the output end of the motor. The motor is fixedly mounted on the inner wall of the frame by a mounting bracket. The drive shaft is provided with two sets of threaded segments with opposite directions. The drive shaft passes through the two sets of fixed plates and is threadedly engaged with the two sets of fixed plates by the two sets of threaded segments respectively.

3. The concrete slump testing device according to claim 2, characterized in that, The inner wall of the frame is fixedly equipped with guide rails, which are distributed parallel to the drive shaft. Both sets of fixing plates have a slot at the end furthest from the corresponding template that is adapted to the guide rail.

4. The concrete slump testing device according to claim 2, characterized in that, Both sets of templates have a funnel on one side.

5. The concrete slump testing device according to claim 1, characterized in that, The detection assembly includes a guide rod, a detection plate, and a guide sleeve. The guide rod is fixedly installed inside the frame. The guide rod has scale lines along its length on its sidewall. The guide sleeve is movably sleeved on the outside of the guide rod. One side of the detection plate is fixedly connected to the guide sleeve via a connecting rod.

6. A concrete slump testing device according to claim 5, characterized in that, One side of the guide sleeve is also connected to the inner wall of the frame via an elastic element, which provides elastic tension to the guide sleeve.

7. A concrete slump testing device according to claim 5, characterized in that, The curing assembly includes a curing medium storage tank, a hose, and a pump body. The detection plate is hollow inside, and several evenly distributed through holes are opened on one side of the detection plate. The pump body is disposed inside the detection plate, and the curing medium storage tank stores the curing medium. One end of the hose is connected to the inner cavity of the solidified medium storage tank, and the other end extends into the inside of the detection plate and is connected to the pump body.

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