Soil liquid-plastic limit combined determination device for engineering

Abstract

The utility model discloses a soil liquid-plastic limit combined measuring device for engineering, which belongs to the technical field of soil measurement, and comprises a bottom plate, one side of the top surface of the bottom plate is fixedly connected with a stand column, the top end of the stand column is fixedly connected with a connecting plate extending to the upper part of the middle part of the bottom plate, and the lower end of the connecting plate is provided with a measuring assembly in an up-down sliding manner; the two sides of the top face of the bottom plate are fixedly connected with parallel mounting plates. According to the soil liquid-plastic limit combined measuring device for engineering, the tank body and an auxiliary ring are assembled through a second clamping block and a second clamping groove, soil filling is assisted, the auxiliary ring and a lower pressing box are assembled through a first clamping block and a first clamping groove, soil in the tank body is compacted in cooperation with a pressing plate, and in addition, the auxiliary ring and the tank body are disassembled, so that soil filling is facilitated. And excessive soil on the tank body can be scraped by the auxiliary ring. Compared with an existing device. Multiple manual complex operations are avoided, the detection efficiency is improved, and the detection precision is optimized.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil measurement, and in particular relates to a soil liquid and plastic limit combined measuring device for engineering use. Background Art

[0002] Geotechnical engineering is the study of solving rock and soil engineering problems, including foundations, bases, slopes and underground engineering problems. At present, during the construction process of geotechnical engineering, a soil liquid limit and plastic limit combined measurement device is generally used to measure the liquid limit and plastic limit of the soil, to classify the soil, calculate the natural consistency and plasticity index, and provide reliable data.

[0003] The existing engineering soil liquid and plastic limit combined determination device has a cumbersome manual compaction step and poor effect. A engineering soil liquid and plastic limit combined determination device as shown in the authorization publication number CN215005381U includes a base, and the upper surface of the base is fixedly connected to a measuring mechanism. When used, the above patent requires manual filling of the soil into the storage container first. The soil in the storage container needs to be manually compacted and scraped flat. If the soil is not compacted and contains cavities, inaccurate measurements will result. Since manual filling mostly uses a soil knife, it is necessary to fill layer by layer and compact repeatedly during the filling process, which is more troublesome. Moreover, the soil knife is long and strip-shaped, and the storage containers are mostly cylindrical tanks. During compaction, the soil in the container is unevenly stressed, which may affect the accuracy of subsequent measurements.

[0004] To this end, we proposed an engineering soil liquid limit and plastic limit combined determination device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems of complicated compaction steps and poor effects in the prior art, and proposes a combined liquid and plastic limit measuring device for engineering soil.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A combined measuring device for the liquid and plastic limits of soil for engineering purposes, comprising a base plate, a column fixedly connected to one side of the top surface of the base plate, a connecting plate fixedly connected to the top of the column extending to the upper middle portion of the base plate, and a measuring assembly provided on the lower end of the connecting plate for sliding up and down;

[0008] The top surface of the bottom plate is fixedly connected to two sides of mutually parallel mounting plates, and a push plate is slidably provided between the lower parts of the two mounting plates, and the can body is placed on the top surface of the push plate;

[0009] A support rod is slidably provided between the upper parts of the two mounting plates on one side away from the column, and a lower pressure box with an open bottom surface is fixedly connected between the two support rods, and a pressure plate is slidably provided inside the lower pressure box;

[0010] It also includes an auxiliary ring, a first card slot is opened on the side of the lower pressure box away from the column, a first card block that matches the first card slot is fixedly connected to the upper part of the side of the auxiliary ring, a second card block is fixedly connected to the lower part of the side of the auxiliary ring, and a second card slot that matches the second card block is opened on the upper part of one side of the can body.

[0011] Preferably, the two facing sides of the two mounting plates are provided with a sliding groove for inserting the support rod, and the sliding groove is provided with an adjustment component for adjusting the height of the support rod.

[0012] Preferably, a slide rail is provided at the lower end of the mounting plate, and both sides of the push plate cooperate with the slide rails respectively and are slidably connected between the two mounting plates at the same time.

[0013] Preferably, a hole is formed through the center of the top surface of the push plate, and a placement plate is placed in the hole. A driving component for driving the placement plate to move up and down is installed on the bottom plate directly below the measuring component.

[0014] Preferably, the first card slot and the second card slot are both L-shaped slots, and the first card block and the second card block are both L-shaped blocks.

[0015] Preferably, a pressure rod is fixedly connected to the top surface of the pressure plate, and a through slot for the pressure rod to pass through is formed through the top surface of the lower pressure box.

[0016] Preferably, a mounting groove is provided in the middle of the pressure rod, and a spring located in the mounting groove is fixedly connected between the pressure rod and the lower pressure box.

[0017] In summary, the technical effects and advantages of the utility model are as follows: the engineering soil liquid and plastic limit combined determination device realizes the assembly of the tank body and the auxiliary ring through the second clamping block and the second clamping slot, thereby assisting in filling the soil, and then realizes the assembly of the auxiliary ring and the lower pressure box through the first clamping block and the first clamping slot, and then cooperates with the pressure plate to realize the compaction of the soil in the tank body. In addition, by disassembling the auxiliary ring from the tank body, the auxiliary ring can also realize the scraping of excess soil on the tank body. Compared with the existing device, it avoids the problems of cumbersome manual compaction steps and poor results, improves detection efficiency, and optimizes detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the cross-section structure;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the can body, auxiliary ring, and lower pressure box during assembly in the utility model.

[0021] In the figure: 1. Base plate; 2. Post; 3. Connecting plate; 4. Measuring assembly; 5. Mounting plate; 6. Push plate; 7. Can body; 8. Support rod; 9. Press box; 10. Press plate; 11. Auxiliary ring; 12. First slot; 13. First block; 14. Second block; 15. Second slot; 16. Slide; 17. Adjustment assembly; 18. Slide rail; 19. Placement plate; 20. Press rod; 21. Mounting slot; 22. Spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-3 A combined measurement device for measuring the liquid and plastic limits of soil for engineering applications includes a base plate 1, with a column 2 fixedly connected to one side of the top surface of the base plate 1. A connecting plate 3 extending above the center of the base plate 1 is fixedly connected to the top of the column 2. A measuring assembly 4 is mounted on the lower end of the connecting plate 3, which slides up and down. This measuring assembly 4 is conventional and includes a cone and a measuring machine that controls the cone. The distance the cone descends is used to measure the soil's liquid and plastic limits. This measuring assembly 4 is relatively common in soil liquid and plastic limit testing and will not be described in detail here.

[0024] Mounting plates 5 parallel to each other are fixedly connected to both sides of the top surface of the bottom plate 1 , a push plate 6 is slidingly provided between the lower parts of the two mounting plates 5 , and a can body 7 is placed on the top surface of the push plate 6 .

[0025] A support rod 8 is provided between the upper parts of the two mounting plates 5 on the side away from the column 2. A lower pressure box 9 with an open bottom is fixedly connected between the two support rods 8. A pressure plate 10 is provided inside the lower pressure box 9 for sliding up and down.

[0026] It also includes an auxiliary ring 11. A first card slot 12 is provided on the side of the lower pressure box 9 away from the column 2. A first card block 13 that matches the first card slot 12 is fixedly connected to the upper side of the auxiliary ring 11, and a second card block 14 is fixedly connected to the lower side of the auxiliary ring 11. A second card slot 15 that matches the second card block 14 is provided on the upper side of one side of the can body 7.

[0027] When using this engineering soil liquid limit and plastic limit combined measuring device, first align the second clamping block 14 with the second clamping groove 15, and then assemble the tank body 7 and the auxiliary ring 11. Then, you can start filling the tank body 7 with soil. When filling, the soil should be properly compacted until it fills the tank body 7 and the auxiliary ring 11.

[0028] Now align the first clamping block 13 with the first clamping slot 12, and assemble the tank body 7, auxiliary ring 11, and pressure box 9. Press down on the pressure plate 10 to evenly compact the soil inside the tank body 7. Once completed, separate the tank body 7 from the auxiliary ring 11, which will then scrape off any excess soil from the top of the tank body 7. Place the tank body 7 on the push plate 6 and move it until it is below the measuring assembly 4. This will allow the combined liquid and plastic limit measurements of the soil to begin.

[0029] The two mounting plates 5 have facing sides with slots 16 for inserting the support rods 8. Slots 16 contain adjustment assemblies 17 for adjusting the height of the support rods 8. By adjusting the height of the support rods 8 using the adjustment assemblies 17, the bottom surface of the can body 7 can be aligned with the top surface of the push plate 6 before separating the can body 7 from the auxiliary ring 11, thereby ensuring smoothness and further improving measurement accuracy.

[0030] The adjustment component 17 is a prior art and may include a first electric push rod, or may use a ball screw, a toothed plate gear, etc. The above adjustment component 17 is relatively common in the field of measuring machinery and will not be described in detail.

[0031] The lower end of the mounting plate 5 is provided with a slide rail 18, and both sides of the push plate 6 are respectively matched with the slide rails 18 and are simultaneously slidably connected between the two mounting plates 5. The sliding connection of the push plate 6 is achieved by the slide rail 18. A hole is opened through the center of the top surface of the push plate 6, and a placement plate 19 is placed in the hole. Figure 3 As shown, the hole should resemble a countersunk hole, allowing placement plate 19 to be securely contained within the hole when no external force is applied. A drive assembly is mounted on base plate 1 directly below measurement assembly 4, driving placement plate 19 up and down. This drive assembly drives placement plate 19 upward, thereby changing the distance between placement plate 19 and measurement assembly 4.

[0032] Before measuring, ensure that the drive assembly, placement plate 19, and measurement assembly 4 are aligned. Position the tank as close to the center of placement plate 19 as possible. Then, turn on the drive assembly until the soil at the top of the tank aligns with the bottom of the cone in measurement assembly 4. This is when the measurement begins.

[0033] The drive assembly is a prior art and may include a second electric push rod or a ball screw solution. The above drive assembly is relatively common in the field of measuring machinery and will not be described in detail.

[0034] The first card slot 12 and the second card slot 15 are both L-shaped slots, and the first card block 13 and the second card block 14 are both L-shaped blocks. The L-shaped slots cooperate with each other to improve the stability during engagement.

[0035] The top surfaces of the pressing plate 10 are fixedly connected with a pressing rod 20, and the top surfaces of the pressing box 9 are penetrated and provided with a through groove for passing the pressing rod 20. By manually pressing the pressing rod 20, the pressing plate 10 can be flattened to the soil.

[0036] In order to make the pressing plate 10 rebound automatically and improve work efficiency, a mounting groove 21 is provided in the middle of the pressing rod 20, and a spring 22 located in the mounting groove 21 is fixedly connected between the pressing rod 20 and the lower pressing box 9. The spring 22 should be a compression spring, thereby applying upward pressure to the pressing rod 20.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined measuring device for the liquid and plastic limits of soil for engineering use, comprising a base plate (1), characterized in that: A column (2) is fixedly connected to one side of the top surface of the base plate (1); a connecting plate (3) extending to the upper middle portion of the base plate (1) is fixedly connected to the top of the column (2); a measuring assembly (4) is provided at the lower end of the connecting plate (3); Mounting plates (5) parallel to each other are fixedly connected to both sides of the top surface of the bottom plate (1); a push plate (6) is provided between the lower parts of the two mounting plates (5) for sliding together; a can body (7) is placed on the top surface of the push plate (6); A support rod (8) is slidably provided between the upper parts of the two mounting plates (5) away from the pillar (2), and a lower pressure box (9) with an open bottom surface is fixedly connected between the two support rods (8), and a pressure plate (10) is slidably provided inside the lower pressure box (9); The invention also includes an auxiliary ring (11), a first card slot (12) is provided on a side of the lower pressing box (9) away from the column (2), a first card block (13) is fixedly connected to the upper side of the auxiliary ring (11) and matched with the first card slot (12), a second card block (14) is fixedly connected to the lower side of the auxiliary ring (11), and a second card slot (15) is provided on the upper side of one side of the can body (7) and matched with the second card block (14).

2. The device for measuring the combined liquid and plastic limits of soil for engineering use according to claim 1, characterized in that: The two facing sides of the two mounting plates (5) are each provided with a sliding groove (16) for inserting the support rod (8), and an adjusting component (17) for adjusting the height of the support rod (8) is provided in the sliding groove (16).

3. The device for combined determination of liquid and plastic limits of engineering soil according to claim 2, characterized in that: The lower end of the mounting plate (5) is provided with a slide rail (18), and both sides of the push plate (6) respectively cooperate with the slide rail (18) and are simultaneously slidably connected between the two mounting plates (5).

4. The device for combined determination of liquid and plastic limits of engineering soil according to claim 3, characterized in that: A hole is provided through the center of the top surface of the push plate (6), and a placement plate (19) is placed in the hole. A driving component for driving the placement plate (19) to move up and down is installed on the bottom plate (1) directly below the measuring component (4).

5. The device for combined determination of liquid and plastic limits of engineering soil according to claim 1, characterized in that: The first card slot (12) and the second card slot (15) are both L-shaped slots, and the first card block (13) and the second card block (14) are both L-shaped blocks.

6. The device for combined determination of liquid and plastic limits of engineering soil according to claim 1, characterized in that: The top surface of the pressing plate (10) is fixedly connected with a pressing rod (20), and the top surface of the lower pressing box (9) is penetrated by a through slot for the pressing rod (20) to pass through.

7. The device for combined determination of liquid and plastic limits of engineering soil according to claim 6, characterized in that: A mounting groove (21) is provided in the middle of the pressure rod (20), and a spring (22) located in the mounting groove (21) is fixedly connected between the pressure rod (20) and the lower pressure box (9).

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