Testing device for concrete

Abstract

The present invention relates to the technical field of concrete slump detection, and provides a concrete test device, which comprises: a slump cylinder, the periphery of which is provided with an inner ring and an outer ring, the inner ring and the outer ring are coaxially arranged with the slump cylinder, and an annular guide channel is formed between the inner ring and the outer ring; the number of the connecting rods is two, the two connecting rods are arranged in a spaced mode, the lower portions of the two connecting rods are both arranged in the guide channel, and the connecting rods slide in the guide channel or drive the slump cylinder to rotate; the vibration module is provided with a vibration part, the vibration module is arranged at the lower end of the connecting rod, and the vibration part acts on the outer wall of the slump barrel. According to the technical scheme, the problem that in an existing slump test mode, a slump cylinder is prone to carrying concrete to move upwards, and the slump performance is affected is solved.

Description

Technical Field

[0001] This invention relates to the field of concrete slump testing technology, and more particularly to a testing device for concrete. Background Technology

[0002] When testing the slump of concrete, concrete is poured into a slump cone, then the concrete inside the cone is compacted and smoothed before the slump cone is lifted. The concrete collapses due to its own weight, and the slump height is measured to calculate the difference between the initial smoothing height and the height after collapse.

[0003] When compacting concrete inside a slump cone, mixing is generally done inside the cone. Although the inner wall of the slump cone is relatively smooth, the concrete inside can still easily move upwards as the cone rises, affecting the surface structure of the concrete and ultimately the slump performance and the slump value. The problem of the slump cone easily carrying concrete upwards and affecting the slump performance in existing slump testing methods needs to be addressed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a concrete testing device that addresses the above-mentioned technical deficiencies. This device solves the problem that in existing slump testing methods, the slump cylinder is prone to carrying concrete upwards, which affects the slump performance.

[0005] The technical solution adopted in this invention is: to provide a testing device for concrete, comprising: The collapse cylinder has an inner ring and an outer ring on its periphery. Both the inner ring and the outer ring are coaxially arranged with the collapse cylinder, and the inner ring and the outer ring form an annular guide channel. The device has two connecting rods, which are spaced apart, and the lower parts of both connecting rods are located within the guide channel. The connecting rods slide within the guide channel or drive the collapse cylinder to rotate. A vibration module has a vibration part, which is disposed at the lower end of the connecting rod, and the vibration part acts on the outer wall of the collapse cylinder.

[0006] To further optimize this technical solution, both the inner ring and the outer ring are fixed to the outer wall of the collapse cylinder. The collapse cylinder is located between the two connecting rods. Two locking bolts are threaded onto the outer ring. The two locking bolts are used to abut and lock the two connecting rods respectively. After the locking bolts lock the connecting rods, the connecting rods drive the collapse cylinder to rotate around the axis of the collapse cylinder.

[0007] To further optimize this technical solution, the vibration module is provided in two parts, with the vibration module provided at the lower end of each connecting rod.

[0008] To further optimize this technical solution, the vibration module includes: A drive motor is located at the lower end of the connecting rod; A flexible component is disposed at the output end of the drive motor, and the drive motor drives the flexible component to rotate. The striking head, which is the vibrating part, is disposed at the end of the flexible member and is used to strike the outer wall of the collapse cylinder.

[0009] To further optimize this technical solution, the striking head strikes the outer wall of the collapse cylinder from top to bottom.

[0010] Further optimization of this technical solution also includes: A lifting platform is installed above the collapse cylinder. A rotating frame is rotatably mounted on the lifting plate, and two connecting rods are respectively located on both sides of the rotating frame. After the lifting plate rises, it drives the collapse cylinder to rise through the connecting rods.

[0011] Further optimization of this technical solution also includes: The mounting frame has a base plate at its lower end, and the collapse cylinder is located at the upper end of the base plate. An electric lifting assembly is mounted on the mounting frame and is used to drive the lifting plate to rise or fall. A rotary motor, mounted on the lifting plate, is used to drive the rotating frame to rotate.

[0012] To further optimize this technical solution, the mounting frame also has vertically arranged columns, and further includes: A collar, which slides and rotates, is fitted onto the column. The height measuring rod is horizontally positioned on the outside of the collar.

[0013] To further optimize this technical solution, the circumferential side of the column is provided with scale lines along the axial direction.

[0014] The beneficial effects of this invention are as follows: 1. The connecting rod can drive the slump cylinder to rotate, so that the inner wall of the slump cylinder can be directly separated from the outer concrete, reducing the adhesion between the concrete and the inner wall of the slump cylinder. When the slump cylinder rises, it can reduce the amount of concrete lifted by the slump cylinder, reduce the impact on the concrete accumulation structure, and make the slump test more standardized.

[0015] 2. The vibration module acts on the outer wall of the slump cone. Combined with the existing compaction method, it can enhance the compaction of the internal concrete, especially the compaction of the concrete on the inner wall of the slump cone, reducing air bubbles. At the same time, it can reduce the adhesion between the concrete and the inner wall of the slump cone, which is conducive to the detachment of the slump cone.

[0016] 3. The vibration module rotates around the outside of the collapse cylinder following the connecting rod, which can provide a more comprehensive vibration effect on the outside of the collapse cylinder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the vibration module of the present invention. Figure 4 The conclusion of this invention Figure 3 A magnified schematic diagram of a portion of the structure at point a. Figure 5 This is a schematic diagram of the collapse cylinder structure of the present invention; Figure 6 This is a schematic diagram of the rotating frame structure of the present invention; The markings in the diagram are as follows: 1. Mounting frame; 101. Base plate; 102. Column; 1021. Scale line; 2. Slump cone; 201. Inner ring; 202. Outer ring; 203. Guide channel; 3. Rotating frame; 301. Connecting rod; 302. Rotating motor; 4. Vibration module; 401. Drive motor; 402. Flexible component; 403. Striking head; 5. Locking bolt; 6. Electric lifting assembly; 601. Lifting plate; 7. Height measuring rod; 701. Collar. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] like Figure 1-6 As shown, a testing device for concrete includes: The collapse cylinder 2 has an inner ring 201 and an outer ring 202 on its periphery. Both the inner ring 201 and the outer ring 202 are coaxially arranged with the collapse cylinder 2, and the inner ring 201 and the outer ring 202 form an annular guide channel 203. There are two connecting rods 301, which are spaced apart and the lower parts of both connecting rods 301 are in the guide channel 203. The connecting rods 301 slide or drive the collapse cylinder 2 to rotate in the guide channel 203. Vibration module 4 has a vibration part, and the vibration module 4 is disposed at the lower end of the connecting rod 301. The vibration part acts on the outer wall of the collapse cylinder 2.

[0023] When using the slump cylinder 2, the operation of pouring concrete into the slump cylinder 2 for compaction and smoothing can refer to the existing slump test operation. While compacting the inside, the connecting rod 301 rotates around the slump cylinder 2, driving the vibration module 4 to rotate in a circular motion. The vibration part acts on the outer wall of the slump cylinder 2, transmitting vibration into the inside of the slump cylinder 2 to further compact the concrete inside, while reducing the adhesion between the concrete and the inner wall of the slump cylinder 2. After vibration, the upper surface of the concrete is initially smoothed. The connecting rod 301 is fixed in the guide channel 203 and fixedly connected to the slump cylinder 2. The connecting rod 301 drives the slump cylinder 2 to rotate, further reducing the adhesion between the concrete and the inner wall of the slump cylinder 2. The rotation can be stopped after rotating at any angle or multiple times. The upper surface of the concrete is smoothed again, and the slump cylinder 2 is lifted to expose the concrete inside. The height difference is measured after the concrete collapses.

[0024] Two connecting rods 301 can be arranged on both sides of the collapse cylinder 2 along the diameter direction of the collapse cylinder 2. When it is necessary to fix them to the collapse cylinder 2, they can be connected to the collapse cylinder 2 more stably, thereby driving the collapse cylinder 2 to rotate.

[0025] The inner ring 201 and outer ring 202 of the collapse cylinder 2 are coaxially arranged. The lower part of the connecting rod 301 is inside the guide channel 203. When the connecting rod 301 drives the vibration module 4 to rotate, the lower part of the connecting rod 301 slides within the guide channel 203. When it is necessary to fix the connecting rod 301 to the collapse cylinder 2, the lower part of the connecting rod 301 can be fixedly connected to the inner ring 201 and the outer ring 202. The inner ring 201 and outer ring 202 can be located at the upper-middle position of the outer wall of the collapse cylinder 2 in the height direction, and the vibration unit can act at the middle or lower position of the outer wall of the collapse cylinder 2 in the height direction.

[0026] Furthermore, both the inner ring 201 and the outer ring 202 are fixed to the outer wall of the collapse cylinder 2. The collapse cylinder 2 is located between the two connecting rods 301. Two locking bolts 5 are threaded onto the outer ring 202. The two locking bolts 5 are used to abut and lock the two connecting rods 301 respectively. After the locking bolts 5 lock the connecting rods 301, the connecting rods 301 drive the collapse cylinder 2 to rotate around the axis of the collapse cylinder 2.

[0027] In use, the inner ring 201 is fixed to the outer wall of the collapse cylinder 2 via a horizontal bracket, and the outer ring 202 is fixed to the outer wall of the collapse cylinder 2 via a vertical bracket, ensuring that there is no obstruction between the guide channel 203 and the outer wall of the collapse cylinder 2 directly below. The connecting rod 301 can drive the vibration module 4 to rotate 360°. A locking bolt 5 is threaded onto the outer ring 202, and the end of the locking bolt 5 can extend into the guide channel 203, abutting against the lower outer side of the connecting rod 301, thus fixing the connecting rod 301 to the collapse cylinder 2. Subsequently, the connecting rod 301 can drive the collapse cylinder 2 to rotate.

[0028] Furthermore, there are two vibration modules 4, and each of the connecting rods 301 is provided with a vibration module 4 at its lower end.

[0029] During use, each connecting rod 301 is equipped with a vibration module 4 at its lower end, which can simultaneously apply vibration to the collapse cylinder 2 from both sides, making the force on both sides of the collapse cylinder 2 relatively balanced. The vibration points on both sides can be symmetrically arranged about the axis of the collapse cylinder 2.

[0030] Furthermore, the vibration module 4 includes: A drive motor 401 is located at the lower end of the connecting rod 301; A flexible component 402 is disposed at the output end of the drive motor 401, and the drive motor 401 drives the flexible component 402 to rotate. The striking head 403, which is the vibrating part, is disposed at the end of the flexible member 402. The striking head 403 is used to strike the outer wall of the collapse cylinder 2.

[0031] In use, the vibration module 4 can be a vibration motor, which abuts against the outer wall of the collapse cylinder 2 and can slide along the outer wall. The vibration module 4 can also be a striking structure, with the drive motor 401 driving the flexible component 402 to rotate. The flexible component 402 can be made of materials such as rubber, possessing a certain degree of deformation adaptability. The striking head 403 impacts the outer wall of the collapse cylinder 2, and the flexible component 402 can be bent or compressed to avoid impact, allowing the flexible component 402 to continuously rotate in a circular motion. The striking head 403 can be made of a relatively hard material to enhance the impact effect and generate a better vibration effect. The main shaft of the drive motor 401 can extend forward and backward, allowing one drive motor 401 to simultaneously drive two vibration units, increasing the impact frequency. The vibration modules 4 on both sides have a total of four vibration units.

[0032] Furthermore, the striking head 403 strikes the outer wall of the collapse cylinder 2 from top to bottom.

[0033] When in use, when the vibrating part strikes the outer wall of the collapse cylinder 2, the striking force is directed downwards, and the collapse cylinder 2 can maintain a stable state on the ground or other flat surfaces during the strike.

[0034] Furthermore, it also includes: The lifting plate 601 is lifted and positioned above the collapse cylinder 2; The rotating frame 3 is rotatably mounted on the lifting plate 601. Two connecting rods 301 are respectively mounted on both sides of the rotating frame 3. After the lifting plate 601 rises, it drives the collapse cylinder 2 to rise through the connecting rods 301.

[0035] In use, the connecting rod 301 is rotatably mounted on the lifting plate 601 via the rotating frame 3, which allows the connecting rod 301 to rotate around the periphery of the collapse cylinder 2. The lifting plate 601 can drive the connecting rod 301 to rise or fall. After the connecting rod 301 is fixedly connected to the collapse cylinder 2, the lifting plate 601 can drive the collapse cylinder 2 to rise or fall via the connecting rod 301.

[0036] Furthermore, it also includes: The mounting frame 1 has a base plate 101 at its lower end, and the collapse cylinder 2 is located at the upper end of the base plate 101. An electric lifting assembly 6 is mounted on the mounting frame 1 and is used to drive the lifting plate 601 to rise or fall. A rotating motor 302 is mounted on the lifting plate 601 and is used to drive the rotating frame 3 to rotate.

[0037] In operation, the electric lifting assembly 6 and the rotating motor 302 achieve automated lifting and rotation. Automated lifting allows for a relatively stable ascent speed to raise the slump cylinder 2, reducing the impact of varying upward speeds on slump measurement. For example, during extremely rapid ascent, the concrete instantly loses all support and restraint, resulting in a faster, unimpeded slump and a greater outward impact, leading to a flatter, lower overall slump and a higher slump value. Conversely, if the slump cylinder 2 rises slowly or stalls during ascent, the concrete does not slump quickly, resulting in a higher overall slump and a lower slump value. Therefore, for standardized operation and more accurate horizontal comparisons, the electric lifting assembly 6 is used to maintain a uniform lifting speed. Electric lifting assemblies also facilitate power dissipation. It is understood that hydraulic or pneumatically driven lifting assemblies could also be used.

[0038] The rotating motor 302 can be a servo motor or similar device, rotating at a relatively slow speed. It can rotate a small angle and then stop. After rotation, it promotes the separation of concrete from the inner wall of the slump cylinder 2, preventing adhesion. It is not advisable to rotate the slump cylinder 2 too many times or for too long, as this can easily form a smoothed outer surface on the contact surface between the concrete and the inner wall of the slump cylinder 2, affecting the slumping.

[0039] Furthermore, the mounting frame 1 also has a vertically arranged column 102, and further includes: The collar 701 is slidably and rotatably sleeved on the column 102; The height measuring rod 7 is horizontally positioned on the outside of the collar 701.

[0040] The column 102 has scale lines 1021 on its circumferential side along the axial direction.

[0041] In use, the vertical column 102 on the mounting piece can be used to measure the height difference. The height measuring rod 7 can rotate around the column 102 to the top of the collapsed concrete, and the distance between the height measuring rod 7 and the base plate 101 can be measured. Alternatively, the initial height of the leveled position of the slump cylinder 2 can be marked directly on the column 102, and the scale line 1021 can be set downwards with the initial height position as the zero point to directly measure the height difference.

[0042] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A testing device for concrete, characterized in that, include: The collapse cylinder (2) has an inner ring (201) and an outer ring (202) on its periphery. Both the inner ring (201) and the outer ring (202) are coaxially arranged with the collapse cylinder (2), and the inner ring (201) and the outer ring (202) form an annular guide channel (203). There are two connecting rods (301), which are spaced apart, and the lower parts of the two connecting rods (301) are both in the guide channel (203). The connecting rods (301) slide or drive the collapse cylinder (2) to rotate in the guide channel (203). The vibration module (4) has a vibration part, and the vibration module (4) is disposed at the lower end of the connecting rod (301). The vibration part acts on the outer wall of the collapse cylinder (2).

2. The concrete testing device according to claim 1, characterized in that, The inner ring (201) and the outer ring (202) are both fixed on the outer wall of the collapse cylinder (2). The collapse cylinder (2) is located between the two connecting rods (301). Two locking bolts (5) are threaded on the outer ring (202). The two locking bolts (5) are used to abut and lock the two connecting rods (301). After the locking bolts (5) lock the connecting rods (301), the connecting rods (301) drive the collapse cylinder (2) to rotate around the axis of the collapse cylinder (2).

3. The concrete testing device according to claim 2, characterized in that, The vibration module (4) has two components, and the vibration module (4) is provided at the lower end of each connecting rod (301).

4. A concrete testing device according to claim 3, characterized in that, The vibration module (4) includes: A drive motor (401) is located at the lower end of the connecting rod (301); A flexible component (402) is disposed at the output end of the drive motor (401), and the drive motor (401) drives the flexible component (402) to rotate; The striking head (403), which is the vibrating part, is disposed at the end of the flexible member (402) and is used to strike the outer wall of the collapse cylinder (2).

5. A concrete testing device according to claim 4, characterized in that, The striking head (403) strikes the outer wall of the collapse cylinder (2) from top to bottom.

6. A concrete testing device according to claim 1, characterized in that, Also includes: A lifting plate (601) is lifted and positioned above the collapse cylinder (2); The rotating frame (3) is rotatably mounted on the lifting plate (601). The two connecting rods (301) are respectively mounted on both sides of the rotating frame (3). After the lifting plate (601) rises, it drives the collapse cylinder (2) to rise through the connecting rods (301).

7. A concrete testing device according to claim 6, characterized in that, Also includes: The mounting frame (1) has a base plate (101) at its lower end, and the collapse cylinder (2) is located at the upper end of the base plate (101). An electric lifting assembly (6) is mounted on the mounting frame (1) and is used to drive the lifting plate (601) to rise or fall. A rotating motor (302) is mounted on the lifting plate (601) to drive the rotating frame (3) to rotate.

8. A concrete testing device according to claim 7, characterized in that, The mounting bracket (1) also has a vertically arranged column (102), and further includes: A collar (701) is slidably and rotatably fitted onto the column (102); The height measuring rod (7) is horizontally positioned on the outside of the collar (701).

9. A concrete testing device according to claim 8, characterized in that, The column (102) has scale lines (1021) on its circumferential side along the axial direction.

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