A concrete slump detection device

Abstract

The utility model discloses a kind of concrete slump detection devices, it is related to concrete detection technical field, including slump cone and two bottom plates, the slump cone is set in the middle of two bottom plates top, the outside of the slump cone is provided with the tamping mechanism of tamping concrete, the beneficial effect of the utility model is: through the setting of tamping mechanism, when concrete is loaded into slump cone and waits tamping, through the small arc of crank handle reciprocation drive shaft rotation, it can be driven by the gear of the outside of rotation shaft intermeshing to another rotation shaft reverse small arc rotation, when two rotation shafts rotate, it can drive connecting rod and knocking hammer reciprocating rotation, so when knocking hammer rotates, it can be contacted with the outer wall of slump cone, through the fast and uniform knocking of the outside of slump cone, concrete in slump cone can be tamped, it is convenient and fast to use.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, specifically a concrete slump testing device. Background Technology

[0002] Slump is a method and indicator for measuring the workability of concrete. On construction sites and in laboratories, slump tests are typically performed to determine the fluidity of the mixture, supplemented by visual experience to assess cohesiveness and water retention. Slump is a quantitative indicator used to measure the degree of workability and to determine whether construction can proceed normally. In the testing process, a funnel-shaped slump cone with a top opening of 100mm, a bottom opening of 200mm, and a height of 300mm is used. Concrete is poured in three stages. After each filling, a tamping hammer is used to evenly tap the cone 25 times from the outside in, compacting it. After tamping, the surface is smoothed, and then the cone is lifted. The concrete collapses due to its own weight. The slump value is calculated by subtracting the height of the highest point of the collapsed concrete from the height of the cone.

[0003] Currently, most existing concrete slump testing devices are simple cone-shaped cylinders. When using them, concrete needs to be loaded into the slump cone and then compacted. However, existing slump testing devices do not have a structure for compaction, requiring the use of external tools, which has certain shortcomings. In addition, existing concrete slump testing devices are not convenient for handling the slumped concrete pile after the test, which also has certain shortcomings. Therefore, we propose a concrete slump testing device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a concrete slump testing device, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a concrete slump testing device, comprising a slump cone and two base plates, wherein the slump cone is disposed in the middle of the top of the two base plates, and a compaction mechanism for compacting concrete is disposed on the outer side of the slump cone.

[0006] Furthermore, the compaction mechanism includes a mounting frame, on which the outer side of the collapse cone is fixedly mounted. A shaft frame plate is fixedly mounted on one side of the mounting frame. Two rotating shafts are rotatably mounted inside the shaft frame plate. Gears are fixedly mounted on the outer side of each of the two rotating shafts, and the two gears mesh with each other. A crank handle is fixedly mounted on one end of one of the rotating shafts. A connecting rod is fixedly mounted on one side of the rotating shaft. A hammer for compacting concrete is provided at one end of the connecting rod and cooperates with the collapse cone.

[0007] Furthermore, a connecting mechanism is provided on both sides of the two base plates.

[0008] Furthermore, the connecting mechanism includes two connecting plates and sliding pins. The two connecting plates are disposed on both sides of the connection between the two base plates. Sliding pins are fixedly installed on both sides of the two base plates. Two sliding grooves are opened inside the connecting plates. The sliding pins are slidably connected to the sliding grooves. Guide pins are fixedly installed on both sides of the two base plates. Guide grooves are opened inside both sides of the connecting plates. The guide pins cooperate with the guide grooves.

[0009] Furthermore, a first handle is provided on the top of both sides of the mounting bracket.

[0010] Furthermore, a second handle is provided on one side of the top of both base plates.

[0011] Furthermore, a limiting head is provided at one end of the sliding pin.

[0012] Furthermore, a feeding hopper is provided at the top of the collapse cone.

[0013] This utility model provides a concrete slump testing device, which has the following beneficial effects: 1. This concrete slump testing device, through the setting of the compaction mechanism, allows the concrete to be loaded into the slump cone and wait for compaction. The crank handle drives the rotating shaft to rotate in a small arc, which in turn drives the other rotating shaft to rotate in the opposite small arc through the meshing of gears on the outside of the rotating shaft. When the two rotating shafts rotate, they drive the connecting rod and the hammer to rotate back and forth. When the hammer rotates, it contacts the outer wall of the slump cone. By quickly and evenly tapping the outside of the slump cone, the concrete inside the slump cone can be compacted. It is convenient and quick to use.

[0014] 2. This concrete slump testing device, through the setting of the connecting mechanism, when the concrete slumps into the middle of the slump cone and needs to be processed, only the second handle needs to be used to lift the base plate, and at the same time the two base plates are pulled to both sides to create a gap in the middle of the base plates. At the same time, after the guide pin is pulled out from the guide groove, due to the weight of the concrete in the middle of the two base plates, the base plates can be driven to rotate in the groove around the sliding pin as the axis, thereby tilting the two base plates, so that the concrete can be quickly poured off the base plates for processing. The processing of slumped concrete is convenient and quick. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a schematic diagram of the base plate structure of this utility model; Figure 5This is a partial exploded view of the structure of this utility model; Figure 6 This is a schematic diagram of the concrete cleaning process performed by unfolding the base plate of this utility model.

[0016] In the diagram: 1. Collapse cone; 2. Base plate; 3. Mounting frame; 4. Shaft support plate; 5. Rotating shaft; 6. Gear; 7. Handle; 8. Connecting rod; 9. Striking hammer; 10. Connecting plate; 11. Sliding pin; 12. Sliding groove; 13. Supporting guide pin; 14. Supporting guide groove; 15. Feeding hopper; 16. First handle; 17. Second handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figures 1 to 6 This utility model provides a technical solution: a concrete slump testing device, including a slump cone 1 and two base plates 2. The slump cone 1 is located at the middle of the top of the two base plates 2, and a compaction mechanism for compacting concrete is provided on the outside of the slump cone 1. With the provision of the compaction mechanism, after concrete is loaded into the slump cone 1, the concrete inside the slump cone 1 can be compacted by the compaction mechanism without the need for an external compaction mechanism, making it convenient and quick to use.

[0019] The compaction mechanism includes a mounting frame 3, on which the outer side of the collapse cone 1 is fixedly mounted. A shaft frame plate 4 is fixedly mounted on one side of the mounting frame 3. Two rotating shafts 5 are rotatably mounted inside the shaft frame plate 4. Gears 6 are fixedly mounted on the outer side of each of the two rotating shafts 5, and the two gears 6 mesh with each other. A crank handle 7 is fixedly mounted on one end of one rotating shaft 5, and a connecting rod 8 is fixedly mounted on one side of the rotating shaft 5. A hammer 9, which cooperates with the collapse cone 1 for concrete compaction, is provided at one end of the connecting rod 8. By holding the crank handle 7 and rotating the rotating shaft 5 in a small arc evenly, the gear 6 on the outer side of the rotating shaft 5 meshes with the other gear 6, thereby simultaneously driving the other rotating shaft 5 to rotate in different directions. The rotation of the two rotating shafts 5 drives the connecting rod 8 and the hammer 9 to rotate around the rotating shaft 5 as the axis. Thus, after the connecting rod 8 rotates and tilts, the hammer 9 strikes the outer side of the collapse cone 1. The even striking of the outer side of the collapse cone 1 by the hammer 9 generates vibration, which compacts the concrete inside the collapse cone 1.

[0020] Both sides of the two base plates 2 are equipped with connecting mechanisms; the connecting mechanisms allow the two base plates 2 to be combined and separated, so as to be used for concrete slump detection and rapid treatment of the slumped concrete after detection.

[0021] The connecting mechanism includes two connecting plates 10 and sliding pins 11. The two connecting plates 10 are located on both sides of the connection between the two base plates 2. Sliding pins 11 are fixedly installed on both sides of the two base plates 2. Two sliding grooves 12 are formed inside the connecting plates 10, and the sliding pins 11 are slidably connected to the sliding grooves 12. Guide pins 13 are fixedly installed on both sides of the two base plates 2, and guide grooves 14 are formed inside both sides of the connecting plates 10, with the guide pins 13 cooperating with the guide grooves 14. When it is necessary to perform slump testing on the concrete, it is only necessary to align the two base plates 2. After being leveled and brought together, the sliding pin 11 can be moved to one side of the sliding groove 12, and the guide pin 13 can be moved into the guide groove 14 to support the middle of the two base plates 2. When the slump test is completed and the concrete on the base plate 2 needs to be poured out, simply pull the two base plates 2 to the side, so that the sliding pin 11 slides out of the sliding groove 12 and the guide pin 13 slides out of the guide groove 14. Then the position in the middle of the two base plates 2 where the concrete is placed can be opened down, and the concrete can be poured out quickly to complete the process. It is convenient and quick to use.

[0022] The top of both sides of the mounting frame 3 is equipped with a first handle 16; the first handle 16 makes it easy to lift the collapse cone 1 for concrete collapse detection.

[0023] A second handle 17 is installed on one side of the top of each of the two base plates 2; the second handle 17 facilitates lifting the base plate 2 and dumping the concrete.

[0024] A limit head is provided at one end of the sliding pin 11; the limit head can limit the sliding pin 11 and ensure that the sliding pin 11 will not slide out of the slide groove 12.

[0025] A feeding hopper 15 is provided at the top of the slump cone 1; the feeding hopper 15 facilitates the pouring of concrete to be tested into the slump cone 1.

[0026] In summary, when using this concrete slump testing device, first, the two base plates 2 are leveled and brought together. Then, the sliding pin 11 moves to one side of the sliding groove 12, and simultaneously, the guide pin 13 moves into the guide groove 14 to support the middle of the two base plates 2. Next, the base plates 2 are placed on a level surface, and the slump cone 1 is placed at the center of the top of the base plates 2. The concrete to be tested is then loaded into the slump cone 1 through the feeding hopper 15. After the concrete is loaded into the slump cone 1, the rotating shaft 5 is rotated evenly and reciprocally in a small arc by holding the crank handle 7. This engages with another gear 6 on the outer side of the rotating shaft 5, thereby simultaneously driving the other rotating shaft 5. Rotating in different directions will cause the connecting rod 8 and the hammer 9 to rotate around the axis of the two rotating shafts 5. This will cause the connecting rod 8 to rotate and tilt, and the hammer 9 to strike the outside of the collapse cone 1. The hammer 9 will strike the outside of the collapse cone 1 evenly, which will generate vibration and compact the concrete inside the collapse cone 1. The height of the compacted concrete is located at the highest point of the cone shape of the collapse cone 1. After compaction, the collapse cone 1 can be lifted by the first handle 16 to make the concrete collapse. Finally, the height of the highest point of the collapsed concrete is subtracted from the height of the cone shape at the bottom of the collapse cone 1 to obtain the slump value. After the concrete slump test is completed, when it is necessary to process the concrete that has fallen from the base plate 2, simply lift the base plate 2 using the second handle 17 and pull the two base plates 2 to both sides to create a gap in the middle of the base plates 2. At the same time, after the guide pin 13 is pulled out from the guide groove 14, the concrete in the middle of the two base plates 2 is heavy enough to drive the base plates 2 to rotate around the sliding pin 11 in the sliding groove 12, thereby tilting the two base plates 2 and allowing the concrete to fall quickly from the base plate 2 for processing.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A concrete slump testing device, comprising a slump cone (1) and two base plates (2), characterized in that: The collapse cone (1) is located in the middle of the top of the two base plates (2), and a compaction mechanism for compacting concrete is provided on the outside of the collapse cone (1).

2. The concrete slump testing device according to claim 1, characterized in that: The compaction mechanism includes a mounting frame (3), on which the outer side of the collapse cone (1) is fixedly mounted. A shaft frame plate (4) is fixedly mounted on one side of the mounting frame (3). Two rotating shafts (5) are rotatably mounted inside the shaft frame plate (4). Gears (6) are fixedly mounted on the outer side of each of the two rotating shafts (5). The two gears (6) mesh with each other. A crank handle (7) is fixedly mounted on one end of one of the rotating shafts (5). A connecting rod (8) is fixedly mounted on one side of the rotating shaft (5). A hammer (9) for compacting concrete is provided at one end of the connecting rod (8) and cooperates with the collapse cone (1).

3. The concrete slump testing device according to claim 1, characterized in that: Both sides of the two base plates (2) are provided with connecting mechanisms.

4. The concrete slump testing device according to claim 3, characterized in that: The connecting mechanism includes two connecting plates (10) and sliding pins (11). The two connecting plates (10) are located on both sides of the connection between the two base plates (2). Sliding pins (11) are fixedly installed on both sides of the two base plates (2). Two sliding grooves (12) are opened inside the connecting plates (10). The sliding pins (11) are slidably connected to the sliding grooves (12). Guide pins (13) are fixedly installed on both sides of the two base plates (2). Guide grooves (14) are opened inside both sides of the connecting plates (10). The guide pins (13) cooperate with the guide grooves (14).

5. A concrete slump testing device according to claim 2, characterized in that: The mounting bracket (3) is provided with a first handle (16) on the top of both sides.

6. The concrete slump testing device according to claim 1, characterized in that: A second handle (17) is provided on one side of the top of each of the two base plates (2).

7. A concrete slump testing device according to claim 4, characterized in that: One end of the sliding pin (11) is provided with a limiting head.

8. The concrete slump testing device according to claim 1, characterized in that: The top of the collapse cone (1) is provided with a feeding hopper (15).

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