Mechanical compaction device based on six-joint test mold

Abstract

The utility model discloses a mechanical sample compaction device based on a six-joint test mold, which comprises a base, two supporting columns are detachably and fixedly mounted on the base, the two supporting columns are symmetrically arranged at two ends of the base, a supporting beam is detachably and fixedly mounted at the upper ends of the supporting columns, and the six-joint test mold is detachably and fixedly mounted on the upper end surface of the base. A sliding compaction mechanism is installed on the supporting column in a sliding mode and rotationally connected with a spinning screw rod, and the spinning screw rod is in threaded connection with the supporting cross beam. The problems that time and labor are consumed and compaction is uneven in the filling stage when a six-joint test mold is used for preparing a sample are solved.

Description

Technical Field

[0001] This utility model belongs to the field of small sample preparation in civil engineering, and relates to a sample mechanical compaction device based on a six-unit test mold. Background Technology

[0002] The compressive strength test is a common geotechnical test used to determine the compressive strength of materials or structures under pressure. The test typically involves four steps: specimen preparation, pressure loading, data acquisition, and data processing. Each step significantly impacts the accuracy of the results. Therefore, proper procedures are crucial, with specimen preparation being a key step.

[0003] In compressive strength testing, multiple sets of specimens are typically prepared to meet the testing requirements of different material compositions and curing conditions. Using common 100mm×100mm×100mm large specimen preparation molds is not only labor-intensive but also wasteful of materials. Therefore, a six-unit mold can be used to prepare six smaller 20mm×20mm×20mm specimens at once. During specimen preparation, the mixed material needs to be filled into the mold. Due to mold size limitations, existing laboratory specimen compactors are generally not usable; manual tamping followed by scraping the specimen surface is necessary. This method is time-consuming and labor-intensive, and cannot guarantee uniform compaction, thus affecting the internal microstructure of the specimen and ultimately the accuracy of the compressive strength test results. Therefore, a compaction device based on a six-unit mold is needed to solve the problems of time-consuming, labor-intensive, and uneven compaction during the filling stage. Summary of the Invention

[0004] The purpose of this invention is to provide a mechanical compaction device based on a six-unit mold, which solves the problems of time-consuming and labor-intensive filling and uneven compaction during the sample preparation stage when using a six-unit mold.

[0005] The technical solution adopted by this utility model is: a sample mechanical compaction device based on a six-unit test mold, including a base, two support columns detachably fixedly installed on the base, the two support columns being symmetrically arranged at both ends of the base, a support beam detachably fixedly installed on the upper end of the support columns, a six-unit test mold detachably fixedly installed on the upper end face of the base, a sliding compaction mechanism slidably installed on the support columns, the sliding compaction mechanism being rotatably connected to a spinning screw, and the spinning screw being threadedly connected to the support beam.

[0006] Based on the above scheme, as a preferred option, the detachable fixed installation of the six-piece trial mold is achieved by installing positioning cylinders, specifically, three positioning cylinders for positioning the six-piece trial mold are fixedly installed on the base.

[0007] Based on the above scheme, as a preferred embodiment, the supporting beam has a through hole in the middle and is provided with internal threads; the spinning screw is movably inserted through the middle position of the supporting beam and is screwed to the internal threads of the supporting beam.

[0008] Based on the above scheme, as a preferred embodiment, the top end of the spinning screw is provided with a rotary wrench.

[0009] Based on the above scheme, as a preferred embodiment, the sliding compaction mechanism includes a compaction module and a connector. The compaction module consists of six raised blocks, each 20mm × 20mm × 20mm in size, which correspond to the mold groove positions of the six-piece trial mold.

[0010] Based on the above scheme, as a preferred embodiment, the connecting parts are a first ring and a second ring with the same outer diameter but different inner diameters. The first ring is fixed on the upper end face of the compaction module, the inner ring of the bearing is fixed on the lower end of the spinning screw, the outer ring of the bearing is fixedly connected to the inner ring of the first ring, and the second ring is fixed on the first ring with the inner diameter of the second ring being smaller than the outer diameter of the bearing.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] Compared with manual compaction, the features of this utility model are:

[0013] 1. By rotating the spinning screw to drive the sliding compaction mechanism, this device provides a vertical and slow compaction method for the sample standard, making the sample compaction operation more standardized and the compaction angle and force more accurate.

[0014] 2. By increasing the lever arm of the rotary wrench, the force required for compaction can be greatly reduced, making it more labor-saving than manual compaction.

[0015] 3. The positioning columns on the base and the six raised blocks at the bottom of the sliding compaction mechanism ensure that six samples are compacted at once, which greatly shortens the sample preparation time compared to manually tapping and compacting them one by one. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the connection between the spinning support structure and the base in this utility model;

[0018] Figure 3 This is a schematic diagram showing the connection between the spinning screw and the sliding compaction mechanism in this utility model;

[0019] In the diagram: 1. Base; 2. Six-piece trial mold; 3. Sliding compaction mechanism; 4. Connector; 5. Support column; 6. Support beam; 7. Spinning screw; 11. Connection hole between base and support column; 12. Positioning column; 31. Connection hole between compaction mechanism and support column; 32. Compaction module; 41. First ring; 42. Second ring; 61. Connection hole between support beam and support column; 62. Internal thread; 71. Bearing; 72. Spinning screw; 73. Rotary wrench. Detailed Implementation

[0020] The present invention will be further described below through embodiments, but the scope of the present invention is not limited thereto.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] like Figure 1-3 As shown, the mechanical compaction device based on a six-unit trial mold of this utility model includes a base 1, a sliding compaction mechanism 3, a connector 4, a support 5, a support beam 6, and a spinning screw 7.

[0023] Three positioning cylinders 12 are fixedly installed on the upper surface of the base 1 to position the six-piece trial mold 2.

[0024] The support column 5 is fixed to the base 1 through the base and the support column connection hole 11;

[0025] The sliding compaction mechanism 3 can move up and down along the axial direction of the support column 5 and is located directly above the base 1.

[0026] The upper end of the support column 5 is fixedly installed with the support beam 6 through the support beam and the support column connection hole 61. The support beam 6 has a through hole in the middle and is provided with internal thread 62.

[0027] The spinning screw 72 is movably inserted through the middle of the support beam 6 and is screwed into the internal thread 62 of the support beam. A rotary wrench 73 is provided at the top of the spinning screw 72.

[0028] The sliding compaction mechanism 3 includes a compaction module 32 and a connector 4. The compaction module 32 includes six raised blocks of 20mm×20mm×20mm, corresponding to the groove positions of the six-piece trial mold 2. The connector 4 consists of two rings, a first ring 41 and a second ring 42, with the same outer diameter but different inner diameters. The first ring is fixed to the upper end face of the compaction module, and the inner diameter of the first ring is larger than that of the second ring. The outer ring of the bearing 71, which is fixed to the lower end of the spinning screw, is fixedly connected to the inner ring of the first ring. The second ring is fixed to the first ring, and the inner diameter of the second ring is smaller than that of the bearing. When the bearing is installed inside the first ring, the end face of the bearing should not protrude from the upper end face of the first ring, but should preferably be slightly lower than the upper end face of the first ring.

[0029] A method for using a mechanical compaction device based on a six-unit trial mold, the specific steps of which are as follows:

[0030] Step (1): Fill the six-part mold 2 with the geopolymer sample to be prepared;

[0031] Step (2): Place the six-piece mold 2, after filling with the sample, on the base 1 according to the positioning cylinder 12;

[0032] Step (3): By rotating the spinning screw 72, the sliding compaction mechanism 3 is driven to compact the sample in the six-piece mold. After compaction, the sample is added again. The operation is repeated multiple times until the required volume for sample preparation is reached.

[0033] Step (4): Remove the six-piece test mold 2 from the base 1 and complete the sample compaction process.

[0034] This utility model provides a mechanical compaction device based on a six-unit test mold and its usage method, which is simple, practical, easy to operate, and can produce soil samples that meet experimental requirements.

[0035] It should be noted that the embodiments described above are only for explaining the present invention and do not constitute any limitation on the present invention. The present invention has been described with reference to typical embodiments, but it should be understood that the words used therein are descriptive and explanatory terms, not limiting terms. Modifications can be made to the present invention within the scope of the claims, and revisions can be made to the present invention without departing from the scope and spirit of the present invention. Although the present invention described herein relates to specific methods, materials, and embodiments, it does not mean that the present invention is limited to the specific examples disclosed herein; on the contrary, the present invention can be extended to all other methods and applications with the same function.

Claims

1. A mechanical compaction device based on a six-unit trial mold, characterized in that, Includes a base, on which two support columns are detachably and fixedly installed. The two support columns are symmetrically arranged at both ends of the base. Support beams are detachably and fixedly installed on the upper end of the support columns. A six-piece trial mold is detachably and fixedly installed on the upper surface of the base. A sliding compaction mechanism is slidably installed on the support columns. The sliding compaction mechanism is rotatably connected to a spinning screw. The spinning screw is threadedly connected to the support beam.

2. The mechanical compaction device based on a six-unit trial mold as described in claim 1, characterized in that, Three positioning cylinders for positioning the six-piece trial mold are fixedly installed on the base.

3. The mechanical compaction device based on a six-unit trial mold as described in claim 1, characterized in that, The supporting beam has a through hole in the middle and is provided with internal threads; the spinning screw moves through the middle of the supporting beam and is screwed to the internal threads of the supporting beam.

4. The mechanical compaction device based on a six-unit trial mold as described in claim 1, characterized in that, A rotary wrench is provided at the top of the spinning screw.

5. The mechanical compaction device based on a six-unit trial mold as described in claim 1, characterized in that, The sliding compaction mechanism includes a compaction module and a connector. The compaction module consists of six raised blocks, each 20mm × 20mm × 20mm in size, which correspond to the mold grooves of the six-piece trial mold.

6. The mechanical compaction device based on a six-unit trial mold as described in claim 5, characterized in that, The connecting parts are a first ring and a second ring with the same outer diameter but different inner diameters. The first ring is fixed to the upper end face of the compaction module, the inner ring of the bearing is fixed to the lower end of the spinning screw, the outer ring of the bearing is fixedly connected to the inner ring of the first ring, and the second ring is fixed on the first ring with the inner diameter of the second ring being smaller than the outer diameter of the bearing.

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