Dynamic triaxial test sample preparation device
By using glass sheets and scales in the sample preparation device to observe the degree of solidification of soil samples, the problem of difficult observation of soil samples and low efficiency in the prior art has been solved, and efficient soil sample preparation has been achieved.
Patent Information
- Application Number
- CN202421786445.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In the existing sample making methods, the opacity of steel molds makes it difficult to directly observe the soil sample density, and the sample making efficiency is low, requiring multiple measurements and replacement of parts.
Use glass sheets to observe the degree of solidification of the soil sample, measure the height by shaving the blocks, reduce the use of parts and improve efficiency.
The visualization and precise measurement of the soil sample solidification process are realized, the operation process is simplified, and the sample preparation efficiency is improved.
Smart Images
Figure CN223179868U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sample preparation devices, and particularly relates to a sample preparation device for dynamic triaxial tests. Background Technique
[0002] Indoor conventional triaxial tests are widely used in the study of soil mechanical properties, including measuring soil shear strength parameters, obtaining soil stress-strain relationship curves and their dilatancy characteristics, etc. For disturbed soil, the key to this test operation lies in the preparation of soil samples. If the prepared soil samples are uneven, it will directly affect the subsequent results. Most of the existing sample preparation methods use steel split mold cylinders or three-piece mold cylinders. According to the specified density of the test, the required soil sample mass is calculated, and then the prepared soil sample is divided into several equal-mass portions and compacted into the mold cylinder in sequence. However, steel molds are usually opaque, and the soil cannot be directly observed during sample preparation, which easily leads to deviations in the density of each layer. Moreover, during the test, the height needs to be measured multiple times and the top surface of the soil sample needs to be shaved, requiring many parts and the need to search for and replace parts, resulting in low sample preparation efficiency.
[0003] Therefore, the utility model provides a sample preparation device for dynamic triaxial tests. Content of the Utility Model
[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a sample preparation device for dynamic triaxial tests to solve the problems raised in the above background technique. The utility model can ensure the stability of the sample compaction cylinder and can disassemble the sample compaction cylinder through the pull block, thus facilitating demolding; the compaction degree of the soil sample can be observed through the first glass sheet and the second glass sheet; the height can also be measured through the scale, and the soil sample can be shaved through the insertion block, reducing the use of other parts and improving work efficiency.
[0005] In order to achieve the above purpose, the utility model is realized through the following technical solutions: A sample preparation device for dynamic triaxial tests includes a sample compaction cylinder. A plurality of first glass sheets are installed inside the sample compaction cylinder. A protective ring, a first cylinder hoop, and a second cylinder hoop are installed on the peripheral side of the sample compaction cylinder. A plurality of pull blocks are installed on the side of the sample compaction cylinder, and the pull blocks correspond to the second cylinder hoop. A plurality of second glass sheets are installed inside the protective ring. A compactor is installed inside the sample compaction cylinder. The compactor includes a pressure plate and a sliding shaft. A scale is installed on the sliding shaft. A connecting plate is installed inside the pressure plate, and a plurality of insertion blocks are installed on the lower side of the connecting plate.
[0006] Furthermore, the sample compaction cylinder is a three-piece mold cylinder, and the sample compaction cylinder is fixedly connected to the pull block. The pull block is an L-shaped structure.
[0007] Furthermore, the first cylinder hoop is located in the middle of the sample compaction cylinder, and the protective ring is located above the first cylinder hoop.
[0008] Further, the pressing plate is fixedly connected to the sliding shaft, and a groove is formed in the pressing plate, which corresponds to the connecting plate.
[0009] Further, a plurality of through grooves are formed at the bottom of the pressing plate, which correspond to the insertion blocks. The insertion blocks are fixedly connected to the connecting plate, and the connecting plate is located in the groove.
[0010] Further, a connecting rod is fixed on the connecting plate. The connecting rod is located in the sliding shaft and is slidably connected to the sliding shaft.
[0011] Further, a limiting block is installed between the top of the connecting rod and the sliding shaft.
[0012] Further, a pressing block is installed on the pressing plate, and the pressing block is slidably connected to the sliding shaft.
[0013] The beneficial effects of the present utility model: A dynamic triaxial test sample preparation device of the present utility model includes a sample hammering cylinder; a retaining ring; a first barrel hoop; a second barrel hoop; a pulling block; a first glass sheet; a second glass sheet; a sliding shaft; a scale; a pressing plate; a connecting plate; an insertion block.
[0014] By arranging a retaining ring, a first barrel hoop and a second barrel hoop on the circumferential side of the sample hammering cylinder and arranging a pulling block on the side surface of the sample hammering cylinder, the stability of the sample hammering cylinder can be ensured, and the sample hammering cylinder can be disassembled through the pulling block, so as to facilitate demolding. By arranging a first glass sheet in the sample hammering cylinder and a second glass sheet in the retaining ring, the compaction degree of the soil sample can be observed through the first glass sheet and the second glass sheet. By arranging a scale on the sliding shaft and arranging a connecting plate in the pressing plate and fixing an insertion block on the lower side of the connecting plate, the height can be measured through the scale, and the soil sample can be shaved by the insertion block, reducing the use of other parts and improving the work efficiency. Description of the Drawings
[0015] Figure 1 It is an overall assembled three-dimensional structural schematic diagram of a dynamic triaxial test sample preparation device of the present utility model;
[0016] Figure 2 It is an overall assembled sectional structural schematic diagram of a dynamic triaxial test sample preparation device of the present utility model;
[0017] Figure 3 It is Figure 2 a schematic diagram at position A in
[0018] Figure 4 an exploded view of a dynamic triaxial test sample preparation device of the present utility model;
[0019] Figure 5 It is an overall assembled three-dimensional structural schematic diagram of a compactor in a dynamic triaxial test sample preparation device of the present utility model;
[0020] In the figure: 1. Sampling cylinder; 2. First cylinder hoop; 3. Second cylinder hoop; 4. Protective ring; 5. First glass sheet; 6. Second glass sheet; 7. Pulling block; 8. Compactor; 9. Pressing plate; 10. Sliding shaft; 11. Groove; 12. Insert block; 13. Connecting plate; 14. Connecting rod; 15. Limit block; 16. Pressing block; 17. Scale. Detailed implementation mode
[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation modes.
[0022] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a dynamic triaxial test sample preparation device, including a sampling cylinder 1, a plurality of first glass sheets 5 are installed in the sampling cylinder 1, a protective ring 4, a first cylinder hoop 2 and a second cylinder hoop 3 are installed on the circumferential side of the sampling cylinder 1, a plurality of pulling blocks 7 are installed on the side of the sampling cylinder 1, the pulling blocks 7 correspond to the second cylinder hoop 3, a plurality of second glass sheets 6 are installed in the protective ring 4, a compactor 8 is installed in the sampling cylinder 1, the compactor 8 includes a pressing plate 9 and a sliding shaft 10, a scale 17 is installed on the sliding shaft 10, a connecting plate 13 is installed in the pressing plate 9, and a plurality of insert blocks 12 are installed on the lower side of the connecting plate 13.
[0023] In this embodiment, the sampling cylinder 1 is a three-piece die cylinder, the sampling cylinder 1 is fixedly connected to the pulling block 7, the pulling block 7 is an L-shaped structure, the first cylinder hoop 2 is located in the middle of the sampling cylinder 1, and the protective ring 4 is located above the first cylinder hoop 2.
[0024] Specifically, when assembling the sampling cylinder 1, the three die segments are spliced together, and then the sampling cylinder 1 is fixed by the first cylinder hoop 2 and the second cylinder hoop 3. After putting the soil sample into the sampling cylinder 1, it can be compacted by the compactor 8.
[0025] When demolding, after inverting the sampling cylinder 1, gently tap the first cylinder hoop 2 and the second cylinder hoop 3 to disassemble them in turn with a small hammer, and then the pulling block 7 can be pulled, so as to facilitate demolding.
[0026] The pressing plate 9 is fixedly connected to the sliding shaft 10. A groove 11 is opened in the pressing plate 9, the groove 11 corresponds to the connecting plate 13. A plurality of through grooves are opened at the bottom of the pressing plate 9, the through grooves correspond to the insert blocks 12, the insert blocks 12 are fixedly connected to the connecting plate 13, the connecting plate 13 is located in the groove 11, a connecting rod 14 is fixed on the connecting plate 13, the connecting rod 14 is located in the sliding shaft 10 and is slidably connected to the sliding shaft 10. A limit block 15 is installed between the top of the connecting rod 14 and the sliding shaft 10. The limit block 15 can be an elastic block. A pressing block 16 is installed on the pressing plate 9, and the pressing block 16 is slidably connected to the sliding shaft 10.
[0027] Specifically, when compaction is carried out, manually pull the pressing block 16 upward. After releasing the pressing block 16, the pressing block 16 will fall freely downward, thereby knocking on the pressing plate 9 to compact the soil sample, and the soil sample can be observed through the first glass sheet 5 and the second glass sheet 6.
[0028] After one layer of compaction is completed, the height of the soil sample can be directly detected through the scale 17. Press the connecting rod 14 downward so that the connecting rod 14 drives the connecting plate 13 to move. The connecting plate 13 drives the insertion block 12 to insert into the soil, and then rotate the pressing plate 9 to shave the soil sample, thus facilitating the compaction of the next layer of soil sample.
[0029] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A dynamic triaxial test sample preparation device, comprising a sample hammering cylinder (1), characterized in that, A plurality of first glass sheets (5) are installed inside the sample striking cylinder (1). A protective ring (4), a first cylinder hoop (2), and a second cylinder hoop (3) are installed on the circumferential side of the sample striking cylinder (1). A plurality of pulling blocks (7) are installed on the side surface of the sample striking cylinder (1), and the pulling blocks (7) correspond to the second cylinder hoop (3). A plurality of second glass sheets (6) are installed inside the protective ring (4). A compactor (8) is installed inside the sample striking cylinder (1). The compactor (8) includes a pressing plate (9) and a sliding shaft (10). A scale (17) is installed on the sliding shaft (10). A connecting plate (13) is installed inside the pressing plate (9), and a plurality of inserting blocks (12) are installed on the lower side of the connecting plate (13).
2. The dynamic triaxial test sample preparation device according to claim 1, characterized in that: The sample striking cylinder (1) is a three-piece die cylinder, and the sample striking cylinder (1) is fixedly connected to the pulling block (7). The pulling block (7) has an L-shaped structure.
3. The dynamic triaxial test sample preparation device according to claim 1, characterized in that: The first cylinder hoop (2) is located in the middle of the sample striking cylinder (1), and the protective ring (4) is located above the first cylinder hoop (2).
4. The dynamic triaxial test sample preparation device according to claim 1, characterized in that: The pressing plate (9) is fixedly connected to the sliding shaft (10). A groove (11) is formed inside the pressing plate (9), and the groove (11) corresponds to the connecting plate (13).
5. The dynamic triaxial test sample preparation device according to claim 4, characterized in that: A plurality of through slots are formed at the bottom of the pressing plate (9), and the through slots correspond to the inserting blocks (12). The inserting blocks (12) are fixedly connected to the connecting plate (13), and the connecting plate (13) is located inside the groove (11).
6. The dynamic triaxial test sample preparation device according to claim 1, characterized in that: A connecting rod (14) is fixed to the connecting plate (13). The connecting rod (14) is located inside the sliding shaft (10) and is slidably connected to the sliding shaft (10).
7. The dynamic triaxial test specimen preparation device according to claim 6, characterized in that: A limiting block (15) is installed between the top of the connecting rod (14) and the sliding shaft (10).
8. The dynamic triaxial test sample preparation device according to claim 1, wherein: A pressing block (16) is installed on the pressing plate (9), and the pressing block (16) is slidably connected to the sliding shaft (10).