Coarse-grained soil slump detection device and method

Abstract

The invention discloses a coarse-grained soil slump detection device and method, and belongs to the technical field of detection devices.The coarse-grained soil slump detection device comprises a supporting seat, a slump barrel is movably placed in the middle of the supporting seat, a movable scraping barrel is mounted at the top of the slump barrel through a scraping mechanism, and an outer threaded barrel is fixedly connected to the inner top of a transverse plate; the outer threaded cylinder is sleeved with an inner threaded cylinder in a threaded mode, the inner threaded cylinder can drive a first pressing plate and a second pressing plate to rotate and move up and down, the second pressing plate can drive a rotating cylinder to rotate, the rotating cylinder can drive a sliding plate to move, and a graduated scale is fixedly installed at the top of the supporting base. Through cooperation of the compaction mechanism and the slicking mechanism, after coarse-grained soil is driven to be filled and compacted, the movable scraping cylinder can be driven to scrape off materials left on the top of the slump cylinder, and the technical effects that automatic scraping operation is achieved, time and labor are saved, the working time is saved, and the detection working efficiency is effectively improved are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of detection devices, and in particular relates to a device and method for detecting the slump of coarse-grained soil. Background Art

[0002] In engineering construction, especially those involving coarse-grained soil construction, such as earth-rock dams, roadbeds and other projects, the fluidity and plasticity of the coarse-grained soil can be evaluated by testing the slump of the coarse-grained soil. If the slump is appropriate, it indicates that the coarse-grained soil is easy to spread and compact during the construction process, which can ensure the smooth progress of the construction.

[0003] During the test, the coarse-grained soil sample is usually placed in the slump cone. After compaction and filling, the slump cone is lifted vertically to avoid excessive disturbance to the soil sample. After lifting the cone, the coarse-grained soil will collapse naturally under the action of gravity. The vertical distance between the highest point of the top of the soil sample and the top of the slump cone is measured with a steel ruler. This distance is the slump value of the coarse-grained soil. The principle is mainly based on the collapse characteristics of coarse-grained soil under the action of its own weight. By measuring the height of the collapse, the fluidity, plasticity and other properties of the coarse-grained soil can be indirectly reflected. If the cohesion between the particles of the coarse-grained soil is small and the friction is small, then after lifting the slump cone, the soil sample will collapse more easily and the slump value will be larger; conversely, if the cohesion between the particles of the coarse-grained soil is large and the friction is large, the slump degree of the soil sample will be small and the slump value will be correspondingly small.

[0004] To this end, a Chinese patent with patent number CN209231146U discloses a concrete slump testing device, including a cylinder, a scraping cylinder arranged at the end of the cylinder, and a connecting piece for connecting the scraping cylinder to the cylinder, the connecting piece includes a first plate and a second plate respectively connected to the cylinder and the scraping cylinder, the first plate and the second plate are attached to each other and fixed by bolts; the scraping cylinder can scrape off excess concrete at the end of the cylinder, so that the amount of concrete retained in the cylinder is constant, so as to improve the measurement accuracy.

[0005] However, the above device needs to be manually disassembled and assembled, and the scraping cylinder needs to be manually pushed to operate, which is time-consuming and labor-intensive, and consumes more working time, which in turn easily affects the working efficiency of the detection. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides a coarse-grained soil slump detection device and method, which has the advantages of driving a movable scraper to scrape off the material remaining on the top of the slump cone after the coarse-grained soil is filled and compacted through the cooperation of a compaction mechanism and a scraping mechanism, thereby realizing automatic scraping operation, saving time, labor and working time, and effectively enhancing the efficiency of detection work. It solves the problem that the prior art requires manual disassembly and assembly, and manual pushing of the scraper to operate, which is time-consuming and labor-intensive, consumes more working time, and then easily affects the efficiency of detection work.

[0007] The present invention is achieved in this way. A coarse-grained soil slump detection device comprises a support seat, a slump cone is movably placed in the middle of the support seat, a movable scraper is installed on the top of the slump cone through a scraping mechanism, the scraping mechanism comprises a sliding plate and a rotating drum, the bottom of the sliding plate is fixedly connected to the movable scraper through a connecting plate, both ends of the support seat are fixedly connected to the support plates, a cross plate is fixedly connected between the tops of the support plates, an externally threaded cylinder is fixedly connected to the inner top of the cross plate, an internally threaded cylinder is sleeved on the external thread of the externally threaded cylinder, a compacting mechanism is installed on the bottom of the internally threaded cylinder, the compacting mechanism comprises a first pressing plate and a second pressing plate, the internally threaded cylinder can drive the first pressing plate and the second pressing plate to rotate and move up and down, the second pressing plate can drive the rotating drum to rotate, the rotating drum can move with the sliding plate, and a scale is fixedly installed on the top of the support seat.

[0008] Through this arrangement, the compaction mechanism can drive the first pressure plate and the second pressure plate to rotate and move up and down along the inner wall of the slump cone, so that the coarse-grained soil can be compacted up and down while being fully rotated and crushed, which is conducive to avoiding the poor compaction effect and affecting the detection accuracy and quality due to the fact that large particles of coarse-grained soil are difficult to crush and prone to gaps, thereby effectively improving the compaction effect and the slump detection efficiency. In addition, the compaction mechanism can also cooperate with the scraping mechanism. After the coarse-grained soil is filled and compacted, the sliding plate drives the movable scraper to slide along the top of the slump cone and detach, scraping off the coarse-grained soil material remaining on the top of the slump cone, so that the amount of coarse-grained soil retained in the cylinder is constant, so as to improve the measurement accuracy and realize automatic scraping operation, save time, labor and working time, and effectively enhance the detection work efficiency.

[0009] As a preferred embodiment of the present invention, a rotating rod is fixedly connected to the inner bottom of the internal threaded cylinder, and the rotating rod extends into the interior of the external threaded cylinder. The upper end of the rotating rod is fixedly connected to the output end of the motor, and a slide plate is fixedly connected to the bottom of the other end of the motor. Slide blocks are fixedly connected to both sides of the slide plate, and slide rails are fixedly connected to the inner wall of the external threaded cylinder. Slide grooves are set between the slide rails, and the slide block slides along the slide grooves.

[0010] With this arrangement, starting the motor forward or reverse can drive the rotating rod to rotate forward or reverse, and then drive the internal threaded barrel to rotate and move up and down along the external threaded barrel, and then drive the first pressure plate and the second pressure plate to rotate and move up and down, thereby realizing the compaction operation of the material to be tested, and facilitating the motor to move synchronously with the internal threaded barrel, and the installation is stable and easy to use.

[0011] As a preferred embodiment of the present invention, the first pressing plate is fixedly connected to both sides of the bottom of the internal threaded cylinder, the second pressing plate is slidably inserted on the first pressing plate, a telescopic cavity is provided inside the second pressing plate, the end of the telescopic cavity is fixedly connected to the end of the first pressing plate by a telescopic spring, a rubber pressing block is threadedly connected to the end of the second pressing plate, and one end of the rubber pressing block is in contact with the inner wall of the slump cone.

[0012] Through this arrangement, the stability of the connection structure between the second pressing plate and the first pressing plate is effectively improved, so that the elastically telescopic moving second pressing plate can easily drive the rubber pressing block to always maintain a close fit with the slump cone, thereby facilitating full compaction of the material to be tested inside the slump cone and improving the detection accuracy and quality.

[0013] As a preferred embodiment of the present invention, a back plate is fixedly connected between the back sides of the support plate, the sliding plate is slidably connected to the inner side of the back plate, one end of the sliding plate slides through the support plate and is fixedly connected to a stopper, and a rack is fixedly connected to the inner side of the top of the sliding plate.

[0014] Through this arrangement, the stability of the sliding plate installation structure is effectively improved, making it easier to drive the movable scraper to move stably, thereby fully scraping off the residual material on the top of the slump cone, ensuring that the volume of the test material inside the slump cone is constant, which is beneficial to improving the detection accuracy.

[0015] As a preferred embodiment of the present invention, the top of the support seat is fixedly connected to a support frame, the rotating drum is connected to the top of the support frame through a bearing, the outer wall of the rotating drum is fixedly connected to a gear ring, the rack and the gear ring are meshingly connected, the inner wall of the rotating drum is fixedly connected to a shift plate, and the end of the second pressure plate can abut the shift plate.

[0016] With this arrangement, after the first pressure plate and the second pressure plate have compacted the material to be tested, they move upward and disengage from the slump cone and reach the rotating cylinder. At this time, the second pressure plate continues to rotate to push the paddle plate, which in turn drives the rotating cylinder and the gear ring to rotate, so that the gear ring drives the sliding plate to move through the rack, and then drives the movable scraper drum to slide and scrape off the top material of the slump cone and disengage from the top of the slump cone. At the same time, the second pressure plate moves upward along the paddle plate and disengages from the paddle plate and the rotating cylinder. When the second pressure plate rotates in the opposite direction and moves downward, it can drive the movable scraper drum to move in the opposite direction and reset. The operation is flexible and convenient and easy to use.

[0017] As a preferred embodiment of the present invention, the top of the slump cone is tightly fitted with the movable scraper drum, and curved rods are fixedly connected on both sides of the bottom of the slump cone. The lower part of the curved rod penetrates to the inner bottom of the support seat, and the upper part of the curved rod penetrates to the inner side of the support plate. A lifting plate is fixedly connected between the upper ends of the curved rods, and the lifting plate is set to a ring-shaped structure and is located above the rotating drum. The top of the second pressure plate can push the lifting plate.

[0018] With this arrangement, when the movable scraper slides out of the slump cone, the second pressure plate continues to rotate upward and reaches the position of the lifting plate. The second pressure plate that continues to move upward can drive the lifting plate to move upward, and the lifting plate can drive the slump cone to move upward through the curved rod until the slump cone is lifted out of the material, allowing the material to fall freely under the action of gravity. The scale measures the height of the material after collapse, and the height difference between the height after collapse and the slump cone is the slump value. The operation is convenient and effectively improves the detection efficiency.

[0019] As a preferred embodiment of the present invention, a through groove is provided on the support seat, and the lower part of the curved rod extends into the through groove. A guide groove is provided on the support plate, and the upper part of the curved rod extends into the guide groove. A guide block is sleeved and fixed on the curved rod, and the guide block slides along the guide groove.

[0020] This arrangement facilitates accurate guidance of the movement of the slump cone, effectively ensuring the accuracy of the detection, thereby facilitating improved detection efficiency and quality.

[0021] As a preferred embodiment of the present invention, an indicating block is slidably sleeved on the scale, and the bottom of one end of the indicating block is fixedly connected to the supporting seat via a supporting spring.

[0022] This arrangement makes it easy to elastically support the indicator block, making it easy to telescope and move for use. After the slump cone is separated from the material, the indicator block is moved to the height position after the material collapses, making it easy to read the height value and facilitate detection.

[0023] As a preferred embodiment of the present invention, the other end of the rubber pressing block is fixedly connected with a threaded column, the end of the second pressing plate is embedded with a threaded groove, and the threaded column is threadedly connected to the threaded groove.

[0024] This arrangement facilitates the installation and removal of the rubber pressing block, making it convenient and flexible to use.

[0025] As a preferred embodiment of the present invention, a rubber scraper is provided at the end of the second pressure plate, one end of the rubber scraper is in contact with the inner wall of the slump cone, and a threaded rod is fixedly connected to the middle of the other end of the rubber scraper, and the threaded rod is threadedly connected to the thread groove.

[0026] With this arrangement, after the inspection work is completed, when the slump cone needs to be cleaned, the threaded column is turned to remove the rubber pressure block, and the threaded rod is screwed into the threaded groove of the second pressure plate, so that the rubber scraper plate can be quickly installed. The rotating and moving rubber scraper plate can fully scrape and clean the inside of the slump cone to prepare for the next inspection work, which is beneficial to ensure the quality and accuracy of the inspection.

[0027] A coarse-grained soil slump detection method, applicable to a coarse-grained soil slump detection device, comprises the following steps:

[0028] S1. Compact the material to be tested. The first pressing plate and the second pressing plate rotate and move up and down along the inner wall of the slump cone at the same time, so that the coarse-grained soil is compacted up and down and large particles of the coarse-grained soil are crushed by rotation to ensure the compaction effect;

[0029] S2, scraping off excess material. After compaction, the second pressing plate is separated from the slump cone and rotates upward to the rotating drum, driving the rotating drum to rotate, so that the sliding plate drives the movable scraper to move, and the movable scraper moves along the top of the slump cone and separates, scraping off excess material on the top of the slump cone;

[0030] S3. Detect the coarse-grained soil. After scraping it flat, the second pressure plate continues to rotate upward to the lifting plate and pushes the lifting plate upward. The lifting plate drives the slump cone to rise. The height of the material after collapse is measured according to the scale and the slump value is calculated.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: the compaction mechanism can drive the first pressure plate and the second pressure plate to rotate and move up and down along the inner wall of the slump cone at the same time, so that the coarse-grained soil can be compacted up and down while being fully rotated and crushed, which is conducive to avoiding the poor compaction effect and affecting the detection accuracy and quality due to the fact that large particles of coarse-grained soil are difficult to crush and easy to form gaps, thereby effectively improving the compaction effect and improving the slump detection efficiency. In addition, the compaction mechanism can also cooperate with the scraping mechanism. After the coarse-grained soil is filled and compacted, the sliding plate drives the movable scraper to slide and disengage along the top of the slump cone, scraping off the coarse-grained soil material remaining on the top of the slump cone, so that the amount of coarse-grained soil retained in the cylinder is constant, so as to improve the measurement accuracy, realize automatic scraping operation, save time, labor and work time, and effectively enhance the detection work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0033] Figure 2 is a front view structural diagram provided by an embodiment of the present invention;

[0034] Figure 3 is a schematic diagram of a cross-sectional structure provided by an embodiment of the present invention;

[0035] Figure 4 is a schematic diagram of a support plate structure provided by an embodiment of the present invention;

[0036] Figure 5 is a schematic diagram of a top view of a rotating drum provided by an embodiment of the present invention;

[0037] Figure 6 The embodiment of the present invention provides Figure 3 A schematic diagram of the structure at the first pressing plate in the middle;

[0038] Figure 7 is a schematic diagram of a top view of the internal threaded barrel provided by an embodiment of the present invention;

[0039] Figure 8 The embodiment of the present invention provides Figure 7 The middle part is an enlarged structural diagram;

[0040] Fig. 9 is a schematic diagram of a bent lever structure provided by an embodiment of the present invention;

[0041] Fig.10 It is a schematic diagram of the installation structure of the rubber scraper provided in an embodiment of the present invention.

[0042] In the figure: 1, support seat; 101, through groove; 2, support plate; 201, horizontal plate; 202, guide groove; 203, support plate; 3, slump cone; 4, scale; 401, indicator block; 402, support spring; 5, movable scraper; 501, connecting plate; 502, sliding plate; 503, rack; 504, stopper; 6, rotating drum; 601, gear ring; 602, support frame; 603, dial plate; 7, external screw Cylinder; 701, slide rail; 702, slide groove; 8, internal thread cylinder; 801, rotating rod; 802, motor; 803, slide plate; 804, slider; 9, lifting plate; 901, curved rod; 902, guide block; 10, first pressure plate; 11, second pressure plate; 12, rubber pressure block; 13, threaded column; 14, telescopic chamber; 15, telescopic spring; 16, threaded groove; 17, rubber scraper plate; 18, threaded rod. DETAILED DESCRIPTION

[0043] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0044] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0045] refer to Figures 1 to 10As shown, a coarse-grained soil slump detection device provided by an embodiment of the present invention comprises a support seat 1, a slump cone 3 is movably placed in the middle of the support seat 1, a movable scraper 5 is installed on the top of the slump cone 3 through a scraping mechanism, the scraping mechanism comprises a sliding plate 502 and a rotating drum 6, the bottom of the sliding plate 502 is fixedly connected to the movable scraper 5 through a connecting plate 501, both ends of the support seat 1 are fixedly connected to support plates 2, and a cross plate 201 is fixedly connected between the tops of the support plates 2. The inner top of the horizontal plate 201 is fixedly connected with an external threaded tube 7, the external thread of the external threaded tube 7 is sleeved with an internal threaded tube 8, and a compacting mechanism is installed at the bottom of the internal threaded tube 8, and the compacting mechanism includes a first pressing plate 10 and a second pressing plate 11. The internal threaded tube 8 can drive the first pressing plate 10 and the second pressing plate 11 to rotate and move up and down, and the second pressing plate 11 can drive the rotating drum 6 to rotate, and the rotating drum 6 can move with the sliding plate 502. A scale 4 is fixedly installed on the top of the support seat 1.

[0046] By adopting the above scheme, the compaction mechanism can drive the first pressure plate 10 and the second pressure plate 11 to rotate and move up and down along the inner wall of the slump cone 3, so that the coarse-grained soil can be compacted up and down while being fully rotated and crushed, which is conducive to avoiding the poor compaction effect and affecting the detection accuracy and quality due to the fact that large particles of coarse-grained soil are difficult to crush and easy to form gaps, thereby effectively improving the compaction effect and the slump detection efficiency. In addition, the compaction mechanism can also cooperate with the scraping mechanism. After the coarse-grained soil is filled and compacted, the sliding plate 502 drives the movable scraper 5 to slide and disengage along the top of the slump cone 3, scraping off the coarse-grained soil material remaining on the top of the slump cone 3, so that the amount of coarse-grained soil retained in the cylinder is constant, so as to improve the measurement accuracy and realize automatic scraping operation, save time and labor, save working time, and effectively enhance the detection efficiency.

[0047] Specifically, a rotating rod 801 is fixedly connected to the inner bottom of the internal threaded tube 8, and the rotating rod 801 extends into the interior of the external threaded tube 7. The upper end of the rotating rod 801 is fixedly connected to the output end of the motor 802. A slide plate 803 is fixedly connected to the bottom of the other end of the motor 802. Both sides of the slide plate 803 are fixedly connected with sliders 804. A slide rail 701 is fixedly connected to the inner wall of the external threaded tube 7. A slide groove 702 is set between the slide rails 701, and the slider 804 slides along the slide groove 702.

[0048] By adopting the above scheme, starting the motor 802 forward and reverse can drive the rotating rod 801 to rotate forward and reverse, and then drive the internal threaded barrel 8 to rotate and move up and down along the external threaded barrel 7, and then drive the first pressure plate 10 and the second pressure plate 11 to rotate and move up and down, thereby realizing the compaction operation of the material to be tested, and it is convenient to drive the motor 802 to move synchronously with the internal threaded barrel 8, and the installation is stable and easy to use.

[0049] Specifically, the first pressing plate 10 is fixedly connected to both sides of the bottom of the internal threaded tube 8, the second pressing plate 11 is slidably inserted on the first pressing plate 10, a telescopic cavity 14 is provided inside the second pressing plate 11, the end of the telescopic cavity 14 is fixedly connected to the end of the first pressing plate 10 by a telescopic spring 15, and a rubber pressing block 12 is threadedly connected to the end of the second pressing plate 11, and one end of the rubber pressing block 12 is in contact with the inner wall of the slump cone 3.

[0050] The adoption of the above scheme effectively improves the stability of the connection structure between the second pressing plate 11 and the first pressing plate 10, so that the elastically retractable second pressing plate 11 can easily drive the rubber pressing block 12 to always maintain a close fit with the slump cone 3, thereby facilitating the full compaction operation of the material to be tested inside the slump cone 3, thereby improving the detection accuracy and quality.

[0051] Specifically, a back plate 203 is fixedly connected between the back sides of the support plate 2, the sliding plate 502 is slidably connected to the inner side of the back plate 203, one end of the sliding plate 502 slides through the support plate 2 and is fixedly connected to a stopper 504, and a rack 503 is fixedly connected to the inner side of the top of the sliding plate 502.

[0052] The above scheme effectively improves the stability of the installation structure of the sliding plate 502, making it easy to drive the movable scraper 5 to perform stable movement operations, thereby fully scraping off the residual material on the top of the slump cone 3, ensuring that the volume of the test material inside the slump cone 3 is constant, which is beneficial to improving the detection accuracy.

[0053] Specifically, the top of the support seat 1 is fixedly connected to a support frame 602, the rotating drum 6 is connected to the top of the support frame 602 through a bearing, the outer wall of the rotating drum 6 is fixedly connected to a gear ring 601, the rack 503 is meshingly connected to the gear ring 601, the inner wall of the rotating drum 6 is fixedly connected to a shift plate 603, and the end of the second pressure plate 11 can abut against the shift plate 603.

[0054] By adopting the above scheme, after the first pressing plate 10 and the second pressing plate 11 have compacted the material to be tested, they move upward and disengage from the slump cone 3 and reach the rotating drum 6. At this time, the second pressing plate 11 continues to rotate to push the paddle plate 603, and then drives the rotating drum 6 and the gear ring 601 to rotate, so that the gear ring 601 drives the sliding plate 502 to move through the rack 503, and then drives the movable scraper drum 5 to slide and scrape off the top material of the slump cone 3 and disengage from the top of the slump cone 3. At the same time, the second pressing plate 11 moves upward along the paddle plate 603 and disengages from the paddle plate 603 and the rotating drum 6. When the second pressing plate 11 rotates in the opposite direction and moves downward, it can drive the movable scraper drum 5 to move in the opposite direction and reset. The operation is flexible and convenient and easy to use.

[0055] Specifically, the top of the slump cone 3 fits tightly with the movable scraper drum 5, and curved rods 901 are fixedly connected to both sides of the bottom of the slump cone 3. The lower part of the curved rod 901 penetrates to the inner bottom of the support seat 1, and the upper part of the curved rod 901 penetrates to the inner side of the support plate 2. A lifting plate 9 is fixedly connected between the upper ends of the curved rods 901. The lifting plate 9 is set to a ring-shaped structure and is located above the rotating drum 6. The top of the second pressing plate 11 can push the lifting plate 9.

[0056] By adopting the above scheme, when the movable scraper 5 slides away from the slump cone 3, the second pressure plate 11 continues to rotate upward and reaches the position of the lifting plate 9. The second pressure plate 11 that continues to move upward can drive the lifting plate 9 to move upward. The lifting plate 9 can drive the slump cone 3 to move upward through the curved rod 901 until the slump cone 3 is lifted and separated from the material, so that the material falls freely under the action of gravity. The scale 4 measures the height of the material after collapse. The height difference between the collapsed height and the slump cone 3 is the slump value. The operation is convenient and effectively improves the detection efficiency.

[0057] Specifically, a through groove 101 is provided on the support seat 1, and the lower part of the curved rod 901 extends into the through groove 101. A guide groove 202 is provided on the support plate 2, and the upper part of the curved rod 901 extends into the guide groove 202. A guide block 902 is sleeved and fixed on the curved rod 901, and the guide block 902 slides along the guide groove 202.

[0058] The above solution facilitates accurate guidance of the movement of the slump cone 3, effectively ensuring the accuracy of detection, thereby facilitating improved detection efficiency and quality.

[0059] Specifically, an indicating block 401 is slidably sleeved on the scale 4 , and a bottom of one end of the indicating block 401 is fixedly connected to the support base 1 via a supporting spring 402 .

[0060] The above scheme facilitates elastic support of the indicator block 401, and facilitates its telescopic movement and use. After the slump cone 3 is separated from the material, the indicator block 401 is moved to the height position after the material collapses, which facilitates reading the height value and detection.

[0061] Specifically, the other end of the rubber pressing block 12 is fixedly connected with a threaded column 13 , and the end of the second pressing plate 11 is embedded with a threaded groove 16 , and the threaded column 13 is threadedly connected to the threaded groove 16 .

[0062] The above solution is adopted to facilitate the installation and removal of the rubber pressing block 12, and is convenient and flexible to use.

[0063] Specifically, a rubber scraper 17 is provided at the end of the second pressure plate 11 , one end of the rubber scraper 17 is in contact with the inner wall of the slump cone 3 , and a threaded rod 18 is fixedly connected to the middle of the other end of the rubber scraper 17 , and the threaded rod 18 is threadedly connected to the thread groove 16 .

[0064] By adopting the above scheme, after the inspection work is completed, when the slump cone 3 needs to be cleaned, the threaded column 13 is twisted to remove the rubber pressure block 12, and the threaded rod 18 is screwed into the threaded groove 16 of the second pressure plate 11, so that the rubber scraping plate 17 can be quickly installed. The rotating and moving rubber scraping plate 17 can fully scrape and clean the inside of the slump cone 3, so as to prepare for the next inspection work, which is beneficial to ensure the quality and accuracy of the inspection.

[0065] A coarse-grained soil slump detection method, applicable to a coarse-grained soil slump detection device, comprises the following steps:

[0066] S1, compacting the material to be tested, the first pressing plate 10 and the second pressing plate 11 rotate, and move up and down along the inner wall of the slump cone 3 at the same time, so that the coarse-grained soil is compacted up and down and large particles of the coarse-grained soil are crushed by rotation to ensure the compaction effect;

[0067] S2, scrape off the excess material. After compaction, the second pressing plate 11 is separated from the slump cone 3 and rotates upward to the rotating drum 6, driving the rotating drum 6 to rotate, so that the sliding plate 502 drives the movable scraper drum 5 to move, and the movable scraper drum 5 moves along the top of the slump cone 3 and separates, scraping off the excess material on the top of the slump cone 3;

[0068] S3. Detect the coarse-grained soil. After leveling, the second pressing plate 11 continues to rotate upward to the lifting plate 9 and pushes the lifting plate 9 upward. The lifting plate 9 drives the slump cone 3 to rise. The height of the collapsed material is measured according to the scale 4, and the slump value is calculated.

[0069] Working principle of the present invention:

[0070] When in use, first, the soil sample material to be tested is placed into the interior of the slump cone 3 through the movable scraper drum 5, and the motor 802 is started to drive the internal threaded cylinder 8 to rotate and move along the external threaded cylinder 7, that is, the first pressing plate 10 and the second pressing plate 11 are driven to rotate and move up and down along the inner wall of the slump cone 3, so that the coarse-grained soil is compacted up and down and the large particles of coarse-grained soil are crushed by rotation to avoid gaps and improve the compaction effect. After compaction, the second pressing plate 11 moves upward to disengage from the slump cone 3 and reach the rotating cylinder 6. At this time, the second pressing plate 11 continues to rotate to push the paddle plate 603, and then drives the rotating cylinder 6 and the gear ring 601 to rotate, so that the gear ring 601 drives the sliding plate 502 to move through the rack 503, and then drives the movable scraper drum 5 to slide and scrape the top material of the slump cone 3 and disengage from the top of the slump cone 3. At the same time, the second pressing plate 11 moves upward along the paddle plate 603 and disengages from the paddle plate 603 and the rotating cylinder 6. After scraping, the second pressing plate 11 continues The lifting plate 9 can be driven by the curved rod 901 to drive the slump cone 3 to move upward until the slump cone 3 is lifted and separated from the material, so that the material falls off freely under the action of gravity. The scale 4 measures the height of the material after collapse. The height difference between the collapsed height and the slump cone 3 is the slump value. The convenient operation effectively improves the detection efficiency. In addition, the rubber pressing block 12 is easy to install and disassemble, and is easy to use. When the slump cone 3 needs to be cleaned, the threaded column 13 is twisted to remove the rubber pressing block 12, and the threaded rod 18 is screwed into the threaded groove 16 of the second pressing plate 11, so that the rubber scraping plate 17 can be quickly installed. The rotating and moving rubber scraping plate 17 can fully scrape and clean the inside of the slump cone 3 to prepare for the next detection work, which is conducive to ensuring the quality and accuracy of the detection.

[0071] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coarse-grained soil slump detection device, comprising a support base (1), characterized in that: A slump cone (3) is movably placed in the middle of the support seat (1), and a movable scraper (5) is installed on the top of the slump cone (3) via a scraper mechanism, and the scraper mechanism comprises a sliding plate (502) and a rotating drum (6), and the bottom of the sliding plate (502) is fixedly connected to the movable scraper (5) via a connecting plate (501), and both ends of the support seat (1) are fixedly connected to support plates (2), and the tops of the support plates (2) are fixedly connected to a transverse plate (201), and the inner top of the transverse plate (201) is fixedly connected to an outer A threaded barrel (7), wherein the external thread of the external threaded barrel (7) is sleeved with an internal threaded barrel (8), and a compacting mechanism is installed at the bottom of the internal threaded barrel (8), and the compacting mechanism includes a first pressing plate (10) and a second pressing plate (11), and the internal threaded barrel (8) can drive the first pressing plate (10) and the second pressing plate (11) to rotate and move up and down, and the second pressing plate (11) can drive the rotating barrel (6) to rotate, and the rotating barrel (6) can move with the sliding plate (502), and a scale (4) is fixedly installed on the top of the support seat (1).

2. A coarse-grained soil slump detection device as claimed in claim 1, characterized in that: A rotating rod (801) is fixedly connected to the inner bottom of the internally threaded cylinder (8), and the rotating rod (801) extends into the interior of the externally threaded cylinder (7). The upper end of the rotating rod (801) is fixedly connected to the output end of the motor (802). A slide plate (803) is fixedly connected to the bottom of the other end of the motor (802). Both sides of the slide plate (803) are fixedly connected to sliders (804). A slide rail (701) is fixedly connected to the inner wall of the externally threaded cylinder (7). A slide groove (702) is provided between the slide rails (701), and the slider (804) slides along the slide groove (702).

3. A coarse-grained soil slump detection device as claimed in claim 1, characterized in that: The first pressing plates (10) are fixedly connected to both sides of the bottom of the internally threaded cylinder (8), and the second pressing plate (11) is slidably inserted on the first pressing plate (10). A telescopic cavity (14) is provided inside the second pressing plate (11), and the end of the telescopic cavity (14) is fixedly connected to the end of the first pressing plate (10) via a telescopic spring (15). A rubber pressing block (12) is threadedly connected to the end of the second pressing plate (11), and one end of the rubber pressing block (12) is in contact with the inner wall of the slump cone (3).

4. A coarse-grained soil slump detection device as claimed in claim 1, characterized in that: A back plate (203) is fixedly connected between the backs of the support plates (2), the sliding plate (502) is slidably connected to the inner side of the back plate (203), one end of the sliding plate (502) slides through the support plate (2) and is fixedly connected to a stopper (504), and a rack (503) is fixedly connected to the inner side of the top of the sliding plate (502).

5. A coarse-grained soil slump detection device as claimed in claim 4, characterized in that: The top of the support seat (1) is fixedly connected to a support frame (602), the rotating drum (6) is connected to the top of the support frame (602) via a bearing, the outer wall of the rotating drum (6) is fixedly connected to a gear ring (601), the rack (503) is meshingly connected to the gear ring (601), the inner wall of the rotating drum (6) is fixedly connected to a shift plate (603), and the end of the second pressure plate (11) can abut against the shift plate (603).

6. A coarse-grained soil slump detection device as claimed in claim 1, characterized in that: The top of the slump cone (3) is tightly fitted with the movable scraper drum (5), and curved rods (901) are fixedly connected to both sides of the bottom of the slump cone (3). The lower part of the curved rod (901) penetrates the inner bottom of the support seat (1), and the upper part of the curved rod (901) penetrates the inner side of the support plate (2). A lifting plate (9) is fixedly connected between the upper ends of the curved rod (901), and the lifting plate (9) is set as a ring-shaped structure and is located above the rotating drum (6). The top of the second pressing plate (11) can push the lifting plate (9).

7. A coarse-grained soil slump detection device as claimed in claim 6, characterized in that: The support seat (1) is provided with a through slot (101), the lower part of the curved rod (901) extends into the through slot (101), the support plate (2) is provided with a guide slot (202), the upper part of the curved rod (901) extends into the guide slot (202), a guide block (902) is sleeved and fixed on the curved rod (901), and the guide block (902) slides along the guide slot (202).

8. A coarse-grained soil slump detection device as claimed in claim 1, characterized in that: An indicating block (401) is slidably sleeved on the scale (4), and the bottom of one end of the indicating block (401) is fixedly connected to the support seat (1) via a supporting spring (402).

9. A coarse-grained soil slump detection device as claimed in claim 3, characterized in that: The other end of the rubber pressing block (12) is fixedly connected to a threaded column (13), the end of the second pressing plate (11) is embedded with a threaded groove (16), and the threaded column (13) is threadedly connected to the threaded groove (16).

10. A method for detecting the slump of coarse-grained soil, characterized in that: The coarse-grained soil slump detection device according to any one of claims 1 to 9 comprises the following steps: S1, compacting the material to be tested, the first pressing plate (10) and the second pressing plate (11) rotate and move up and down along the inner wall of the slump cone (3) at the same time, so that the coarse-grained soil is compacted up and down and large particles of the coarse-grained soil are crushed by rotation, thereby ensuring the compaction effect; S2, scraping off the excess material, after compaction, the second pressing plate (11) is separated from the slump cone (3) and rotates upward to the rotating drum (6), driving the rotating drum (6) to rotate, so that the sliding plate (502) drives the movable scraper drum (5) to move, and the movable scraper drum (5) moves along the top of the slump cone (3) and separates, so as to scrape off the excess material on the top of the slump cone (3); S3. Detect the coarse-grained soil. After leveling, the second pressing plate (11) continues to rotate upward to the lifting plate (9) and pushes the lifting plate (9) upward. The lifting plate (9) drives the slump cone (3) to rise. The height of the collapsed material is measured according to the scale (4) to calculate the slump value.

Images