A high-flowability concrete flowability testing device

Abstract

This utility model relates to a flowability testing device for high-flowability concrete, belonging to the technical field of concrete performance testing equipment. The high-flowability concrete flowability testing device includes: a base with a sliding groove at its upper end, the sliding groove being spiral-shaped; a testing mechanism installed at the upper end of the base, the surface of the testing mechanism extending into the interior of the base; wherein, the testing mechanism includes a rotating component installed at the upper end of the base; the rotation of the rotating component drives the placement component to rotate synchronously, and the positioning bolt is tightly connected to the upper end of the rotating disk, providing good positioning for the placement cylinder, preventing significant displacement of the placement cylinder when struck, limiting the rotation angle of the placement cylinder, and the rotation of the placement cylinder drives the striking paddle to sequentially move the striking rod towards the striking paddle, preventing concrete from flowing out of the slump bucket and reducing the labor intensity of the workers.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete performance testing equipment, and in particular to a device for testing the fluidity of highly fluid concrete. Background Technology

[0002] Concrete is an engineering composite material widely used in civil engineering, such as buildings, roads, and bridges. It is mainly composed of cement, sand, stone, and water. When necessary, chemical admixtures and mineral admixtures can be added to improve its performance. During the production of concrete buckets, slump tests are usually performed to determine the fluidity of the mixture, and visual experience is used to evaluate cohesiveness and water retention. Slump buckets are often used for testing.

[0003] A search of existing Chinese patent technology reveals a device for testing the fluidity of concrete, with publication number CN218331088U. This device uses a fixing claw to make close contact with the outer wall of the slump cylinder, and two sets of gripper assemblies work together to stably fix the slump cylinder, effectively preventing concrete from flowing out when the tester taps the slump cylinder, thus greatly improving the accuracy of the test results. However, when filling the slump cylinder with concrete, the device requires workers to press the slump cylinder to prevent concrete from flowing out, and a compaction rod is needed to compact the concrete inside the slump cylinder, thereby increasing the labor intensity of the workers. Utility Model Content

[0004] Therefore, it is necessary to address the issue that when filling a slump cone with concrete, workers need to press the slump cone to prevent it from flowing out and use a compaction rod to compact the concrete, increasing the labor intensity of the workers. To address this, a high-flowability concrete flowability testing device is provided, comprising: a base with a spiral-shaped sliding groove at its upper end; a testing mechanism mounted on the upper end of the base, the surface of which extends into the interior of the base; wherein the testing mechanism includes a rotating component mounted on the upper end of the base, the surface of which extends into the interior of the base, a placement component at the upper end of the rotating component, and a striking component on one side of the placement component, the striking component being mounted on the upper end of the base.

[0005] In one embodiment, the rotating assembly includes a rotating disk rotatably connected to the upper end of the base, the lower end of the rotating disk penetrating the surface of the base and extending into the interior of the base, a telescopic rod fixedly connected to the surface of the rotating disk, the telescopic rod being located inside the base, and a thrust bearing fixedly connected to the surface of the rotating disk, the lower end of the thrust bearing contacting the upper end of the base.

[0006] In one embodiment, the striking assembly includes a mounting base fixedly connected to the upper end of the base, a connecting plate rotatably connected to the upper end of the mounting base, a prism fixedly connected to the upper end of the connecting plate, a sliding seat slidably connected to the surface of the prism, and a striking rod inserted into the interior of the sliding seat.

[0007] In one embodiment, the placement assembly includes a placement cylinder disposed on the upper end of the rotating disk, a positioning seat fixedly connected to the surface of the rotating disk near the lower end, a positioning bolt disposed inside the positioning seat, and the lower end of the positioning bolt penetrating into the interior of the rotating disk.

[0008] In one embodiment, a limiting rod is fixedly connected to the other end of the telescopic rod. The upper end of the limiting rod extends through to the top of the base, and the surface of the limiting rod is slidably connected to the inner wall of the sliding groove. The limiting rod will rotate along the sliding groove, and the sliding groove structure will keep the rotation angle of the limiting rod at 360 degrees.

[0009] In one embodiment, a plurality of striking paddles are fixedly connected to the surface of the placement cylinder, and the plurality of striking paddles are distributed in a ring shape along the surface of the placement cylinder. The number of striking paddles is consistent with the number of strikes, and the striking paddles can also be adjusted according to the rotation angle of the limiting rod to ensure that the number of strikes meets the requirements.

[0010] In one embodiment, the surface of the prism has multiple locking holes, and a locking pin is inserted into one side of the sliding seat, with one end of the locking pin penetrating into the interior of an adjacent locking hole. The locking holes and the locking pin cooperate to ensure that the sliding seat is accurately positioned on the surface of the prism.

[0011] In one embodiment, a torsion spring is fitted onto the surface of the mounting base, and the surface of the torsion spring is fixedly connected to the surface of the connecting plate. The elastic potential energy generated by the torsion spring causes the placement cylinder to be subjected to impact vibration when it rotates, thus aiding in the uniform compaction of the concrete inside the placement cylinder.

[0012] Beneficial effects

[0013] The aforementioned high-flowability concrete flowability testing equipment, through its testing mechanism, enables the rotating component to rotate synchronously with the placement component under the action of the testing mechanism. The positioning bolt is tightly connected to the upper end of the rotating disk, and the positioning seat provides a good positioning effect for the placement cylinder, preventing significant displacement of the placement cylinder when it is struck, limiting the rotation angle of the placement cylinder. The rotation of the placement cylinder drives the striking paddle to sequentially move the striking rod to strike the striking paddle, preventing concrete from flowing out of the slump bucket and reducing the labor intensity of the workers.

[0014] By setting up a striking component, the prism is driven by a torsion spring to bring the sliding seat and striking rod closer to the surface of the placement cylinder. The striking rod strikes the striking paddle, transmitting the vibration to the surface of the placement cylinder. Since the prism is set in three layers, the vibration can be transmitted to the corresponding height when pouring concrete multiple times, maintaining a good striking vibration effect and reducing the labor intensity of the workers. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the detection mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the placement component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the exploded structure of the striking component of this utility model;

[0020] Figure 5 This is a schematic diagram of the rotating component structure of this utility model.

[0021] Figure label:

[0022] 1. Base; 2. Sliding groove; 3. Detection mechanism; 31. Rotating assembly; 311. Rotating disk; 312. Telescopic rod; 313. Thrust bearing; 314. Limiting rod; 32. Striking assembly; 321. Mounting seat; 322. Prism; 323. Sliding seat; 324. Striking rod; 325. Connecting plate; 326. Torsion spring; 327. Locking pin; 328. Locking hole; 33. Placement assembly; 331. Placement cylinder; 332. Striking paddle; 333. Positioning seat; 334. Positioning bolt. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The following is combined Figures 1-5 This invention describes a high-flowability concrete flowability testing device.

[0025] In one embodiment, a high-flowability concrete flowability testing device includes: a base 1, with a sliding groove 2 at the upper end of the base 1, the sliding groove 2 being spiral-shaped; a testing mechanism 3, the testing mechanism 3 being installed at the upper end of the base 1, the surface of the testing mechanism 3 extending into the interior of the base 1; wherein, the testing mechanism 3 includes a rotating component 31 installed at the upper end of the base 1, the surface of the rotating component 31 extending into the interior of the base 1, a placement component 33 being provided at the upper end of the rotating component 31, a striking component 32 being provided on one side of the placement component 33, and the striking component 32 being installed at the upper end of the base 1;

[0026] It should be noted that: the placement cylinder 331 is a funnel-shaped slump cone with an upper diameter of 100mm, a lower diameter of 200mm, and a height of 300mm. Concrete is poured into the cylinder in three stages. After each filling, the cylinder is evenly tapped 25 times from the outside to the inside with a tamping hammer. After compaction, the concrete at the opening of the cylinder is smoothed, and then the cylinder is pulled up. The concrete collapses and flows naturally. After it stabilizes, the height of the highest point of the concrete pile and the diameter of the diffusion surface are measured. The slump is the height of the slump cone minus the height of the highest point, and the diffusion surface area is the diffusion degree.

[0027] like Figure 1-4 As shown, the rotating assembly 31 includes a rotating disk 311 rotatably connected to the upper end of the base 1. The lower end of the rotating disk 311 penetrates the surface of the base 1 and extends into the interior of the base 1. A telescopic rod 312 is fixedly connected to the surface of the rotating disk 311. The telescopic rod 312 is located inside the base 1. A thrust bearing 313 is fixedly connected to the surface of the rotating disk 311. The lower end of the thrust bearing 313 contacts the upper end of the base 1. A limit rod 314 is fixedly connected to the other end of the telescopic rod 312. The upper end of the limit rod 314 penetrates to the top of the base 1. The surface of the limit rod 314 is slidably connected to the inner wall of the sliding groove 2.

[0028] The placement assembly 33 includes a placement cylinder 331 disposed on the upper end of the rotating disk 311. A positioning seat 333 is fixedly connected to the surface of the rotating disk 311 near the lower end. A positioning bolt 334 is disposed inside the positioning seat 333. The lower end of the positioning bolt 334 penetrates into the interior of the rotating disk 311. A plurality of striking paddles 332 are fixedly connected to the surface of the placement cylinder 331. The plurality of striking paddles 332 are distributed in a ring along the surface of the placement cylinder 331.

[0029] In this embodiment, the device rotates the rotating component 31 to drive the placement component 33 to rotate synchronously. The positioning bolt 334 is tightly connected to the upper end of the rotating disk 311, and the positioning seat 333 provides good positioning for the placement cylinder 331, preventing significant displacement of the placement cylinder 331 when it is hit. The rotation angle of the placement cylinder 331 is limited by the cooperation of the telescopic rod 312 and the limiting rod 314.

[0030] like Figure 1 , Figure 2 and Figure 5 As shown, the striking assembly 32 includes a mounting base 321 fixedly connected to the upper end of the base 1. A connecting plate 325 is rotatably connected to the upper end of the mounting base 321. A prism 322 is fixedly connected to the upper end of the connecting plate 325. A sliding seat 323 is slidably connected to the surface of the prism 322. A striking rod 324 is inserted into the interior of the sliding seat 323. A plurality of locking holes 328 are opened on the surface of the prism 322. A locking pin 327 is inserted into one side of the sliding seat 323. One end of the locking pin 327 passes through the interior of the adjacent locking hole 328. A torsion spring 326 is sleeved on the surface of the mounting base 321. The surface of the torsion spring 326 is fixedly connected to the surface of the connecting plate 325.

[0031] In this embodiment, the device is driven by the torsion spring 326 through the set prism 322, so that the sliding seat 323 drives the striking rod 324 to approach the surface of the placement cylinder 331. When the placement cylinder 331 rotates, it drives the striking paddle 332 to sequentially move the striking rod 324. The striking rod 324 strikes the adjacent striking paddle 332, and the vibration is transmitted to the surface of the placement cylinder 331 through the striking paddle 332. During the striking operation, the placement cylinder 331 will not deviate significantly.

[0032] Working principle: The concrete to be tested is poured into the placement cylinder 331 and the rotating disk 311 is manually rotated. The positioning bolt 334 is connected to the upper end of the rotating disk 311, and the positioning seat 333 provides good positioning for the placement cylinder 331. The cooperation between the telescopic rod 312 and the limiting rod 314 limits the rotation angle of the placement cylinder 331. The prism 322 is driven by the torsion spring 326, and the sliding seat 323 drives the striking rod 324 to approach the surface of the placement cylinder 331. When the placement cylinder 331 rotates, it drives the striking paddle 332 to move the striking rod 324. The striking rod 324 strikes the adjacent striking paddle 332, and the vibration is transmitted to the surface of the placement cylinder 331 through the striking paddle 332. When the striking operation is performed, the degree of displacement of the placement cylinder 331 when it is struck is reduced, ensuring stable striking of the rotating disk 311 containing the concrete.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high fluidity concrete flowability detection apparatus characterized by comprising: include: A base (1) is provided with a sliding groove (2) at its upper end, and the sliding groove (2) is spiral in shape; The detection mechanism (3) is installed on the upper end of the base (1), and the surface of the detection mechanism (3) extends into the interior of the base (1); The detection mechanism (3) includes a rotating component (31) installed on the upper end of the base (1). The surface of the rotating component (31) extends into the interior of the base (1). A placement component (33) is provided on the upper end of the rotating component (31). A striking component (32) is provided on one side of the placement component (33). The striking component (32) is installed on the upper end of the base (1).

2. The apparatus for testing the fluidity of high-fluidity concrete according to claim 1, wherein The rotating assembly (31) includes a rotating disk (311) rotatably connected to the upper end of the base (1). The lower end of the rotating disk (311) penetrates the surface of the base (1) and extends into the interior of the base (1). A telescopic rod (312) is fixedly connected to the surface of the rotating disk (311). The telescopic rod (312) is located inside the base (1). A thrust bearing (313) is fixedly connected to the surface of the rotating disk (311). The lower end of the thrust bearing (313) contacts the upper end of the base (1).

3. The apparatus according to claim 1, wherein The striking assembly (32) includes a mounting base (321) fixedly connected to the upper end of the base (1). A connecting plate (325) is rotatably connected to the upper end of the mounting base (321). A prism (322) is fixedly connected to the upper end of the connecting plate (325). A sliding seat (323) is slidably connected to the surface of the prism (322). A striking rod (324) is inserted into the interior of the sliding seat (323).

4. The apparatus for testing the fluidity of high-fluidity concrete according to claim 2, wherein The placement assembly (33) includes a placement cylinder (331) disposed on the upper end of the rotating disk (311). A positioning seat (333) is fixedly connected to the surface of the rotating disk (311) near the lower end. A positioning bolt (334) is disposed inside the positioning seat (333), and the lower end of the positioning bolt (334) penetrates into the interior of the rotating disk (311).

5. The apparatus for testing the fluidity of high-fluidity concrete according to claim 2, wherein The other end of the telescopic rod (312) is fixedly connected to a limiting rod (314), the upper end of the limiting rod (314) extends through to the top of the base (1), and the surface of the limiting rod (314) is slidably connected to the inner wall of the sliding groove (2).

6. The apparatus according to claim 4, wherein Multiple striking paddles (332) are fixedly connected to the surface of the placement cylinder (331), and the multiple striking paddles (332) are distributed in a ring shape along the surface of the placement cylinder (331).

7. The apparatus according to claim 3, wherein The surface of the prism (322) is provided with a plurality of locking holes (328), and a locking pin (327) is inserted into one side of the sliding seat (323), with one end of the locking pin (327) penetrating into the interior of the adjacent locking hole (328).

8. The apparatus for testing the fluidity of high-fluidity concrete according to claim 3, wherein A torsion spring (326) is fitted on the surface of the mounting base (321), and the surface of the torsion spring (326) is fixedly connected to the surface of the connecting plate (325).

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