An automatic cleaning and drying device and method for soil sample moisture content testing weighing box

Abstract

This invention provides an automatic cleaning and drying device and method for weighing boxes used in soil sample moisture content testing. The device includes a weighing box fixing plate and a housing. Inside the housing are a waste soil collection box, a conveying mechanism, a lifting frame, a tilting mechanism, an ultrasonic cleaning tank, a spraying mechanism, and a drying mechanism. The conveying mechanism is located at the top of the housing. The waste soil collection box and the ultrasonic cleaning tank are arranged in a straight line along the conveying direction of the conveying mechanism at the bottom of the housing. The tilting mechanism is located above the waste soil collection box. The spraying mechanism and the drying mechanism are located above the ultrasonic cleaning tank. Tilting the weighing box pours the waste soil into the waste soil collection box. Then, a walking mechanism moves the fixing plate above the ultrasonic cleaning tank, and the lifting frame lowers the fixing plate into the ultrasonic cleaning tank for cleaning. This invention solves the cleaning difficulties in existing technologies and can significantly improve the efficiency and reliability of soil sample moisture content determination.

Description

Technical Field

[0001] This invention relates to the technical field of soil sample moisture content testing equipment, and in particular to an automatic cleaning and drying device for soil sample moisture content testing weighing boxes, which is mainly used for cleaning and drying soil sample weighing boxes in soil sample moisture content testing. Background Technology

[0002] Moisture content testing is an experiment used to determine the moisture content of coarse-grained soil, fine-grained soil, organic soil, and frozen soil. Determining the moisture content of soil samples is a crucial step in geotechnical testing. In existing soil moisture content testing, a representative sample or a sample from a ring sampler is placed in a weighing box to measure the wet soil mass. The box is then opened, placed in an oven, and dried at a constant temperature until constant weight. Afterward, the sample is removed and placed in a drying container to cool to room temperature to obtain the dry weight of the soil sample. The moisture content is then calculated from the wet and dry weights of the soil sample.

[0003] In soil moisture content determination, weighing boxes are essential test containers. Since multiple sets of data are typically measured during a moisture content test to ensure calculation accuracy, multiple weighing boxes are used for each test. Traditionally, after the soil moisture content test, these weighing boxes are manually cleaned, dried in a drying oven, and then stored to ensure they are clean and dry for future use, thus maintaining test accuracy. Sometimes, to ensure accuracy, the weighing boxes are cleaned and dried a second time before the test. Because a large number of weighing boxes are used in each test, and these boxes are generally cylindrical and not large in size, manual cleaning is cumbersome. The process is time-consuming and labor-intensive, and there is a risk of incomplete cleaning, especially with wet soil or sticky soil. Even after drying, the weighing boxes are difficult to wipe clean, leading to incomplete cleaning and potentially inaccurate test results. In addition, since the weighing box consists of two parts, the box body and the lid, manual cleaning can easily lead to errors, and disassembly can easily cause mismatch between the box body and the lid, affecting the test results.

[0004] Therefore, it is essential to develop an automated cleaning and drying system. Summary of the Invention

[0005] To address the problems existing in the background art, the present invention provides an automatic cleaning and drying device for soil sample moisture content test weighing boxes. The cleaning and drying device can efficiently and automatically complete the drying and cleaning of the test boxes, thereby improving test efficiency, reducing labor intensity, and ensuring the accuracy of test results.

[0006] To achieve the above objectives, the present invention provides an automatic cleaning and drying device for a soil sample moisture content test weighing box. The device includes a weighing box fixing plate and a housing. The housing contains a waste soil collection box, a conveying mechanism, a lifting frame, a tilting mechanism, an ultrasonic cleaning tank, a spraying mechanism, and a drying mechanism. The conveying mechanism is located at the top of the housing, and the lifting frame is mounted on the conveying mechanism via a traveling mechanism and travels along the conveying mechanism. The waste soil collection box and the ultrasonic cleaning tank are arranged in a straight line at the bottom of the housing along the conveying direction of the conveying mechanism, with the waste soil collection box located in front of the ultrasonic cleaning tank. The tilting mechanism is located above the waste soil collection box and includes two tilting frames symmetrically arranged on the inner wall of the housing. The spraying mechanism and the drying mechanism are located above the ultrasonic cleaning tank. The spraying mechanism includes spray pipes and multiple spray heads distributed on the side walls of the housing, and the drying mechanism includes multiple hot air pipes and air outlets distributed on the side walls and top of the housing.

[0007] The weighing box fixing plate includes a box fixing plate, which has a lifting frame connecting part, a flipping frame connecting part, and multiple box fixing slots that match the weighing box body. The box fixing plate is installed between two flipping frames. The flipping frames flip the weighing box to pour the waste soil in the weighing box into the waste soil collection box. After the waste soil in the box fixing plate is emptied, the opening of the box fixing plate is kept facing down and connected to the lifting frame. The walking mechanism drives the box fixing plate to move above the ultrasonic cleaning tank, and the lifting frame drives the box fixing plate down into the ultrasonic cleaning tank for cleaning.

[0008] A preferred technical solution of the present invention: The weighing box fixing plate further includes a box cover fixing plate, on which a lifting frame connecting hole and multiple box cover fixing grooves matching the weighing box cover are correspondingly provided. An electromagnetic chuck is provided inside the box cover fixing plate, and the electromagnetic chuck is located on the bottom surface of the multiple box cover fixing grooves. The lifting frame includes at least two rotating lifting rods, and the lifting area of ​​each rotating lifting rod is a three-section telescopic clamp tube. A first connecting block matching the lifting frame connecting part is provided at the bottom of the three-section telescopic clamp tube, and a second connecting block matching the lifting frame connecting hole is provided at the bottom of the second section of the three-section telescopic clamp tube.

[0009] A preferred technical solution of the present invention: The flipping frame includes a first electric telescopic rod, wherein a first rotary motor is provided at the end of one side of the first electric telescopic rod, the first rotary motor is fixedly installed on the box body, and the electric telescopic rod on this side is installed on the output shaft of the first rotary motor; the first electric telescopic rod on the other side is rotatably installed on the inner wall of the box body; the flipping frame connecting part includes two locking holes symmetrically arranged on both sides of the middle part of the box body fixing plate, which match the first electric telescopic rods, and when the two sets of first electric telescopic rods are extended, they are inserted into the two locking holes on the box body fixing plate, and the box body fixing plate is rotated and flipped by the first rotary motor.

[0010] A preferred technical solution of the present invention is as follows: The conveying mechanism includes a conveying motor and a conveying screw rotatably mounted on the top of the housing. The conveying screw is arranged in a straight line parallel to the waste soil collection box and the ultrasonic cleaning tank. The conveying screw is connected to the output end of the conveying motor. A guide rod parallel to the conveying screw is rotatably mounted on the top of the housing. The traveling mechanism includes a threaded sleeve and a guide sleeve mounted on the top of the lifting frame. The threaded sleeve is threadedly connected to the conveying screw, and the guide sleeve is slidably connected to the guide rod. Under the action of the conveying motor, the lifting frame is driven to move along the conveying screw and the guide rod.

[0011] The preferred technical solution of the present invention is as follows: the spray pipe is installed inside the side plate of the box, and the water inlet end of the spray pipe leads to the outside of the box and is connected to the external water pump. The water outlet end of the spray pipe is connected to each spray head through multiple branch water pipes. The spray heads are installed in the middle and lower part of the box, and the spray nozzles of the spray heads higher than the ultrasonic cleaning tank are inclined downwards, while the spray nozzles of the spray heads lower than the ultrasonic cleaning tank are inclined upwards.

[0012] A preferred technical solution of the present invention is as follows: the drying mechanism further includes a hot air blower disposed above the top of the box, the air outlet of the hot air blower is connected to the inlet end of the hot air pipe, and is connected to multiple air outlets through the hot air pipe, and the hot air pipe is arranged inside the top plate and side plate of the box; a box door is opened on the side of the box adjacent to the waste soil collection box, and a drain outlet is provided on the side of the box adjacent to the ultrasonic cleaning tank, the drain outlet being connected to the bottom of the ultrasonic cleaning tank.

[0013] The preferred technical solution of the present invention is as follows: each box body fixing groove is provided with a ball buckle structure, and the lower part of the weighing box body is provided with a slot that matches the ball buckle; the lifting frame is provided in two sets, each set of lifting frame includes a support plate and two rotating lifting rods, the support plate is connected to the walking mechanism, each rotating lifting rod includes a second rotating motor and a second electric telescopic rod, the second electric telescopic rod is installed on the output shaft of the second rotating motor, and each second electric telescopic rod is provided with three telescopic clamping tubes.

[0014] The preferred technical solution of the present invention is as follows: the first connecting block and the second connecting block have the same structure, both including two protrusions symmetrically arranged on both sides of the three-section telescopic tube body. The lifting frame connecting part and the lifting frame connecting hole are both orifices with an annular groove in the middle. The upper and lower orifices of the lifting frame connecting hole are matched with the cross-section of the location of the second connecting block. When the rotating lifting rod is retracted and connected to the weighing box fixing plate, both the first connecting block and the second connecting block can pass through the lifting frame connecting hole, and the second connecting block is engaged in the lifting frame connecting... Within the annular groove in the middle of the locking hole, and within a rotation angle of less than 180° for the rotating lifting rod, the second connecting block engages with the lifting frame connecting locking hole. The upper and lower openings of the lifting frame connecting locking hole are provided with cross-shaped grooves. When the rotating lifting rod is in the retracted state and connected to the weighing box fixing plate, the first connecting block is locked in the annular groove in the middle of the lifting frame connecting part. Within a rotation angle of less than 45° for the rotating lifting rod, the first connecting block engages with the lifting frame connecting part. When the rotating lifting rod rotates 45°, the first connecting block can disengage from the lifting frame connecting part.

[0015] This invention also provides an automatic cleaning and drying method for soil sample moisture content test weighing boxes. The cleaning and drying method uses the aforementioned automatic cleaning and drying device for soil sample moisture content test weighing boxes to clean the weighing boxes, specifically including the following steps:

[0016] S1. After the moisture content test is completed, fix the weighing boxes containing dry soil samples into the box fixing plate of the weighing box fixing plate, and install the box fixing plate containing the weighing boxes between two flipping frames. Pour the dry soil samples in the weighing boxes into the waste soil collection box by flipping the frames.

[0017] S2. After the dry soil sample in the box fixing plate is poured out, keep the opening of the box fixing plate facing down and connect it to the lifting frame. Then, detach the box fixing plate from the flipping frame and move the lifting frame and the box fixing plate above the ultrasonic cleaning tank through the walking mechanism. Control the spray mechanism to rinse the box fixing plate and the weighing box fixed in the plate once. After rinsing, control the lifting frame to extend and lower the box fixing plate into the ultrasonic cleaning tank to clean the weighing box symmetrically.

[0018] S3. After cleaning, control the lifting frame to retract and raise the box fixing plate to a position higher than the opening of the ultrasonic cleaning tank, and control the spray mechanism to perform a second rinse on the box fixing plate and the weighing box fixed inside the plate.

[0019] S4. After rinsing, control the drying mechanism to blow hot air toward the cleaned box fixing plate and the weighing box fixed inside the plate to quickly dry the cleaned weighing box.

[0020] A preferred technical solution of the present invention: The weighing box fixing plate in step S1 further includes a box cover fixing plate. The box cover fixing plate has multiple box cover fixing slots, and an electromagnetic chuck is provided on the bottom surface of each slot. A lifting frame connecting hole is also provided on the box cover fixing plate. The lifting frame includes at least two rotating lifting rods. The lifting area of ​​each rotating lifting rod is a three-section telescopic tube. A first connecting block matching the lifting frame connecting part is provided at the bottom of the third section of the three-section telescopic tube, and a second connecting block matching the lifting frame connecting hole is provided at the bottom of the second section of the three-section telescopic tube. The lifting frame and the box cover fixing plate can simultaneously open the lids of multiple weighing boxes embedded in the box body fixing plate. The specific process is as follows:

[0021] S101. Fix and embed multiple weighing boxes with lids into the box body fixing plate, then invert the box lid fixing plate on top of the box body fixing plate, with the lid of each weighing box correspondingly embedded in the box lid fixing groove, then install the weighing box fixing plate as a whole between two flipping frames, and energize the electromagnetic chuck of the box lid fixing plate to use the electromagnetic chuck to adsorb and fix the lids of the weighing boxes.

[0022] S102. Control the second section of the three-section telescopic clamping tube to extend until the second connecting block at the bottom of the second section of the tube is embedded in the lifting frame connecting card hole on the box cover fixing plate, and the first connecting block at the bottom of the third section of the tube is embedded in the lifting frame connecting card hole on the box body fixing plate. Control the lifting frame to rotate 15 to 30°. At this time, the first connecting block and the second connecting block are respectively engaged with the box body fixing plate and the box cover fixing plate.

[0023] S103. Control the retraction of the second section of the three-section telescopic clamping tube. During the retraction of the second section of the tube, the lid fixing plate will rise and open the lids of multiple weighing boxes at the same time. The height of the retraction of the second section of the tube is greater than 1 / 2 the length of the lid fixing plate.

[0024] S104. Control the lifting frame to continue rotating to 45°. At this time, the first connecting block is not engaged with the box fixing plate, and the second connecting block is engaged with the box cover fixing plate. Then, control the third section of the three-section telescopic clamping tube to retract and disengage from the box fixing plate. Finally, control the flipping frame to drive the box fixing plate to flip 180 degrees until the opening of the box fixing plate faces down and is parallel to the opening surface of the waste collection box.

[0025] This invention uses a flipping mechanism to fix the box body fixing plate. A three-section telescopic clamping tube then lifts the box cover fixing plate, separating the box covers from the box bodies. Next, the three-section telescopic clamping tube separates from the box body fixing plate, and the flipping mechanism rotates the box body fixing plate 180 degrees so that the opening of the box body fixing plate faces downwards, allowing the waste soil from the weighing boxes to be poured into the waste soil collection box. After emptying the soil, the opening of the box body fixing plate remains facing downwards, and the three-section telescopic clamping tube secures it to the box body fixing plate. The conveyor motor then starts working, controlling the conveyor screw to rotate, thereby using the lifting frame to move along the conveyor... The screw and guide rod move above the ultrasonic cleaning tank. First, the spray mechanism is controlled to rinse the box and lid, thoroughly removing any remaining soil sample. After rinsing, the three-section telescopic clamp of the lifting frame descends into the ultrasonic cleaning tank with the box fixing plate and lid fixing plate. Through the synergistic effect of high-frequency vibration and cleaning fluid, a deep cleaning effect is achieved. After cleaning, the three-section telescopic clamp of the lifting frame returns to its original position with the box fixing plate and lid fixing plate, and the drying mechanism is activated. High-temperature hot air is blown out through the vents on the tank wall to quickly dry the cleaned test box, avoiding secondary contamination.

[0026] This invention can also be equipped with a control system for automatic control, using a PLC (Programmable Logic Controller) to control the operation of the entire system, and featuring a human-machine interface (HMI) for parameter setting and status monitoring. The control system coordinates the work of each part to ensure smooth operation of the production line.

[0027] The automatic cleaning and drying system for soil sample moisture content test boxes of the present invention, through the assembly line design and the application of bottom snap-on sample boxes, realizes the automated processing of sample boxes. It can efficiently and automatically complete the drying and cleaning of test boxes, significantly improving the work efficiency of the test, reducing labor intensity, reducing errors caused by human intervention, and ensuring the accuracy of test results. Moreover, the entire system has a compact structure, is easy to operate, and is suitable for various geotechnical laboratories and research institutions. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the front structure inside the box in this invention;

[0029] Figure 2 This is a schematic diagram of the internal plan of the box in this invention;

[0030] Figure 3 This is a schematic diagram of the lifting frame in this invention;

[0031] Figure 4 This is a plan view of the box fixing plate in this invention;

[0032] Figure 5 yes Figure 4 Sectional view of AA in the middle;

[0033] Figure 6 yes Figure 4 Cross-sectional view of the middle section (BB);

[0034] Figure 7 This is a plan view of the lid fixing plate in this invention;

[0035] Figure 8 yes Figure 7 CC section view;

[0036] Figure 9 This is a schematic diagram of the weighing box fixing belt and box body fixing plate in this invention;

[0037] Figure 10 This is a schematic diagram of the weighing box fixing plate being installed on the rotating frame;

[0038] Figure 11 This is a schematic diagram showing the connection and locking state between the lifting frame and the weighing box fixing plate;

[0039] Figure 12 This is a schematic diagram showing the lifting frame driving the box cover fixing plate to rise.

[0040] Figure 13 This is a schematic diagram showing the lifting frame detached from the box fixing plate.

[0041] In the diagram: 1—Weighing box fixing plate, 100—Box body fixing plate, 101—Lifting frame connecting part, 102—Tilting frame connecting part, 103—Box body fixing groove, 104—Box cover fixing plate, 105—Box cover fixing groove, 106—Lifting frame connecting clip hole, 107—Electromagnetic chuck, 2—Box body, 200—Box door, 201—Drain outlet, 3—Waste soil collection box, 4—Lifting frame, 401—First connecting clip, 402— Second connecting block, 403—support plate, 404—second rotary motor, 405—second electric telescopic rod, 5—ultrasonic cleaning tank, 6—tilting frame, 600—first electric telescopic rod, 601—first rotary motor, 7—spray head, 8—air outlet, 9—weighing box, 10—transmission motor, 11—transmission screw, 12—guide rod, 13—threaded sleeve, 14—guide sleeve, 15—spray pipe, 16—hot air blower. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figures 1 to 13 All accompanying drawings are simplified versions of embodiments and are intended only to clearly and concisely illustrate the embodiments of the present invention. The technical solutions shown in the drawings below are specific solutions of embodiments of the present invention and are not intended to limit the scope of the claimed invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] The embodiment provides an automatic cleaning and drying device for a soil sample moisture content test weighing box, such as... Figures 1 to 13 As shown, the cleaning and drying device includes a weighing box fixing plate 1 and a box 2. The box 2 can be enclosed or open at both ends. Inside the box 2 are a waste soil collection box 3, a conveying mechanism, a lifting frame 4, a tilting mechanism, an ultrasonic cleaning tank 5, a spraying mechanism, and a drying mechanism. The conveying mechanism is located at the top of the box 2. The lifting frame 4 is mounted on the conveying mechanism via a traveling mechanism and travels along the conveying mechanism. The waste soil collection box 3 and the ultrasonic cleaning tank 5 are arranged in a straight line at the bottom of the box 2 along the conveying direction of the conveying mechanism, with the waste soil collection box 3 located in front of the ultrasonic cleaning tank 5. The tilting mechanism... The structure is located above the waste collection box 3, including two symmetrically arranged flipping frames 6 on the inner wall of the box; if the box is set to be open at both ends, its open sides are located on both sides of the conveying mechanism; if the box 2 is set to be closed, a box door 200 is opened on the side of the box 2 adjacent to the waste collection box 3, and a drain outlet 201 is provided on the side of the box 2 adjacent to the ultrasonic cleaning tank 5, the drain outlet 201 is connected to the bottom of the ultrasonic cleaning tank 5; the weighing box fixing plate 1 can be installed through the box door 200, and the waste soil in the waste collection box 3 can be cleaned; the waste liquid in the ultrasonic cleaning tank 5 can be discharged through the drain outlet 201.

[0046] The embodiment provides an automatic cleaning and drying device for a soil sample moisture content test weighing box, such as... Figures 4 to 9As shown, the weighing box fixing plate 1 includes a box body fixing plate 100 and a box cover fixing plate 104. The box body fixing plate 100 is provided with a lifting frame connecting part 101, a flipping frame connecting part 102, and a plurality of box body fixing grooves 103 that match the box body of the weighing box 9. Each box body fixing groove 103 is provided with a ball buckle structure. The lower part of the box body of the weighing box 9 is provided with a slot that matches the ball buckle. The weighing box 9 can be locked in the box body fixing groove 103 and will not detach from the box body fixing plate 100 during the flipping process. The lid fixing plate 104 is provided with a lifting frame connecting hole 106 and a plurality of lid fixing grooves 105 that match the lid of the weighing box 9. An electromagnetic chuck 107 is provided inside the lid fixing plate 104. The electromagnetic chuck 107 is located on the bottom surface of the plurality of lid fixing grooves 105. Since the weighing box 9 is made of metal, the lid of the weighing box 9 can be attracted when the electromagnetic chuck 107 is energized. When it needs to be removed, the electromagnetic chuck 107 can be de-energized to detach.

[0047] Implementation, for example Figures 10 to 13 As shown, the flipping frame 6 includes a first electric telescopic rod 600, one end of which is provided with a first rotary motor 601. The first rotary motor 601 is fixedly installed on the housing 2, and the electric telescopic rod on this side is installed on the output shaft of the first rotary motor 601. The first electric telescopic rod 600 on the other side is rotatably installed on the inner wall of the housing 2. The flipping frame connecting part 102 consists of symmetrically arranged locking holes on both sides of the middle part of the box fixing plate 100. Both locking holes are matched with the first electric telescopic rod 600 and can be locked with the first electric telescopic rod 600. When the two sets of first electric telescopic rods 600 are extended, they are inserted into the two locking holes on the box fixing plate 100, so that the weighing box fixing plate 1 can be fixedly installed between the two flipping frames 6. Then, the first electric telescopic rod connected to it is driven to rotate by the first rotary motor 601, thereby driving the weighing box fixing plate 1 and the first electric telescopic rod on the other side to rotate. The waste soil in the weighing box is poured into the waste soil collection box 3 by flipping the weighing box by the flipping frame 6. After the waste soil in the box fixing plate 100 is poured out, the box fixing plate 100 is kept facing down and connected to the lifting frame 4. The box fixing plate 100 is moved to the upper part of the ultrasonic cleaning tank 5 by the walking mechanism, and the box fixing plate 100 is lowered into the ultrasonic cleaning tank 5 by the lifting frame 4 for cleaning.

[0048] The embodiment provides an automatic cleaning and drying device for a soil sample moisture content test weighing box, such as... Figures 1 to 3 , Figures 10 to 13As shown, the lifting frame 4 is provided in two sets. Each set of lifting frames 4 includes a support plate 403 and two rotating lifting rods. The support plate 403 is connected to the walking mechanism. Each rotating lifting rod includes a second rotating motor 404 and a second electric telescopic rod 405. The second electric telescopic rod 405 is installed on the output shaft of the second rotating motor 404. The lifting area of ​​each second electric telescopic rod 405 is a three-section telescopic clamp tube, that is, it includes three sections of tube. The first section of tube serves as the main body of the electric telescopic rod and is connected to the support plate fixed on the output shaft of the second rotating motor 404. The second section of tube serves as the first telescopic part, which can extend and retract along the first section of tube. The third section of tube serves as the second telescopic part, which can extend and retract along the second section of tube. At the bottom of the third section of the three-section telescopic clamp tube, there is a first connecting block 401 that matches the lifting frame connecting part 101. At the bottom of the second section of the three-section telescopic clamp tube, there is a second connecting block 402 that matches the lifting frame connecting hole 106.

[0049] In this embodiment, the first connecting block 401 and the second connecting block 402 have the same structure, both including two protrusions symmetrically arranged on both sides of the three-section telescopic tube body; such as Figures 4 to 9 As shown, the lifting frame connecting part 101 and the lifting frame connecting hole 106 are both holes with an annular groove in the middle, and the box body fixing plate 100 and the box cover fixing plate 104 are both provided with four holes. The upper and lower openings of the lifting frame connecting hole 106 are matched with the cross-section of the second connecting block 402. When the rotating lifting rod is retracted and connected to the weighing box fixing plate 1, both the first connecting block 401 and the second connecting block 402 can pass through the lifting frame connecting hole 106. The second connecting block 402 is engaged in the annular groove in the middle of the lifting frame connecting hole 106. Within the range of rotation angle of the rotating lifting rod less than 180°, the second connecting block 402 is engaged with the lifting frame connecting hole 106. The upper and lower openings of the lifting frame connecting hole 106 are provided with cross-shaped grooves. When the rotating lifting rod is retracted and connected to the weighing box fixing plate 1, the first connecting block 401 is engaged in the annular groove in the middle of the lifting frame connecting part 101. Within the range of rotation angle of the rotating lifting rod less than 45°, the first connecting block 401 is engaged with the lifting frame connecting part 101. When the rotating lifting rod rotates 45°, the first connecting block 401 can disengage from the lifting frame connecting part 101.

[0050] The embodiment provides an automatic cleaning and drying device for a soil sample moisture content test weighing box, such as... Figures 1 to 2As shown, the conveying mechanism includes a conveying motor 10 and a conveying screw 11 rotatably mounted on the top of the housing 2. The conveying screw 11 is arranged parallel to the straight line of the waste collection box 3 and the ultrasonic cleaning tank 5, and the conveying screw 11 is connected to the output end of the conveying motor 10. A guide rod 12 parallel to the conveying screw 11 is rotatably mounted on the top of the housing 2. The traveling mechanism includes a threaded sleeve 13 and a guide sleeve 14 mounted on the top of the lifting frame 4. The threaded sleeve 13 is threadedly connected to the conveying screw 11, and the guide sleeve 14 is slidably connected to the guide rod 12. Under the action of the conveying motor 10, the lifting frame 4 is driven to move along the conveying screw 11 and the guide rod 12. Each lifting frame 4 has a set of threaded sleeves 13 and guide sleeves 14 on its top, and both sets of lifting frames move simultaneously along the conveying screw 11 and the guide rod 12.

[0051] In the embodiments, such as Figures 1 to 2 As shown, the spraying mechanism and drying mechanism are located above the ultrasonic cleaning tank 5. The spraying mechanism includes a spray pipe 15 and multiple spray heads 7 distributed on the side walls of the housing. The spray pipe 15 is installed inside the side plate of the housing 2, and the water inlet of the spray pipe 15 leads to the outside of the housing 2 and is connected to an external water pump. The water outlet of the spray pipe 15 is connected to each spray head 7 through multiple branch water pipes. The spray heads 7 are located in the lower middle part of the housing, with the spray nozzles of the spray heads 7 above the ultrasonic cleaning tank 5 tilting downwards and the spray nozzles of the spray heads 7 below the ultrasonic cleaning tank 5 tilting upwards. Through the synergistic effect of high-frequency vibration and cleaning liquid, a deep cleaning effect is achieved. The drying mechanism includes a hot air blower 16 installed above the top of the housing 2 and multiple air outlets 8 distributed on the side walls and top of the housing. The air outlet of the hot air blower 16 is connected to the inlet of the hot air pipe and is connected to the multiple air outlets 8 through the hot air pipe. The hot air pipe is installed inside the top and side plates of the housing 2. After cleaning, the test box can be quickly dried using a drying mechanism. The drying mechanism has adjustable temperature to avoid secondary contamination.

[0052] The embodiment provides an automatic cleaning and drying method for soil sample moisture content test weighing boxes. The method uses the aforementioned automatic cleaning and drying device for soil sample moisture content test weighing boxes to clean the weighing boxes, specifically including the following steps:

[0053] S1. As Figure 9 As shown, multiple weighing boxes 9 with lids are fixedly embedded into the box body fixing plate 100. Then, the lid fixing plate 104 is inverted and placed on top of the box body fixing plate 100, with the lid of each weighing box 9 correspondingly embedded in the lid fixing groove 105. Figure 10 As shown, the weighing box fixing plate 1 is installed between the two flipping frames 6. The first electric telescopic rod 600 is controlled to extend and be inserted into the locking holes on both sides of the box fixing plate 100. The electromagnetic chuck of the box cover fixing plate 104 is energized and the electromagnetic chuck 107 is used to adsorb and fix the box cover of the weighing box 9.

[0054] S2. For example Figure 11 As shown, the second section of the three-section telescopic tube of the control lifting frame 4 extends to the bottom of the second section of the tube, where the second connecting block 402 is embedded in the lifting frame connecting hole 106 on the box cover fixing plate 104. The first connecting block 401 at the bottom of the third section of the tube is embedded in the lifting frame connecting part 101 on the box body fixing plate 100. Each rotating telescopic rod of the control lifting frame 4 rotates about 20°. At this time, the first connecting block 401 and the second connecting block 402 are respectively engaged with the box body fixing plate 100 and the box cover fixing plate 104.

[0055] S3. For example Figure 12 As shown, the second section of the three-section telescopic clamping tube of the control lifting frame 4 retracts. During the retraction of the second section of the tube, it will drive the box cover fixing plate 104 to rise and open the box covers of multiple weighing boxes at the same time. The height of the retraction of the second section of the tube is greater than 1 / 2 the length of the box cover fixing plate 100, and will not affect the normal rotation of the box cover fixing plate 100.

[0056] S4. For example Figure 13 As shown, each of the rotating telescopic rods of the control lifting frame 4 continues to rotate to 45°. At this time, the first connecting block 401 is not engaged with the box fixing plate 100, and the second connecting block 402 continues to be engaged with the box cover fixing plate 104. Then, the third section of the three-section telescopic clamping tube is controlled to retract and disengage from the box fixing plate 100. At this time, the box fixing plate 100 is fixed between the two first electric telescopic rods 600, and the box cover of each weighing box 9 is in the open state. At this time, the first electric telescopic rod 600 is controlled by the first rotating motor 601 to drive the box fixing plate 100 to rotate 180 degrees until the opening of the box fixing plate 100 faces downward and is parallel to the opening surface of the waste soil collection box 3. During the rotation process, the waste soil in the weighing box 9 is poured into the waste soil collection box 3.

[0057] S5. After the dry soil sample in the box fixing plate 100 is poured out, keep the opening of the box fixing plate 100 facing downwards, and control the third section of each rotating telescopic rod of the lifting frame 4 to descend until the first connecting block 401 is embedded in the locking hole of the box fixing plate 100. Rotate each rotating telescopic rod in the opposite direction by about 20°, and continue to maintain the connection between the lifting frame and the box fixing plate 100 and the box cover fixing plate 104; control the two sets of first electric telescopic rods 600 to retract, and use the first electric telescopic rods 600 on both sides to disengage from the box fixing plate 100.

[0058] S6. Control the drive motor 10 to drive the drive screw 11 to rotate, thereby using the lifting frame 4 to move along the drive screw 11 and guide rod 12 to the top of the ultrasonic cleaning tank 5; connect the spray pipe 15 to the water pump and turn on the spray mechanism to perform the first rinse on the box body fixing plate 100, the box cover fixing plate 104 and the weighing box 9 fixed in the plate. After rinsing, control the lifting frame 4 to drive the box body fixing plate 100 and the box cover fixing plate 104 to descend into the ultrasonic cleaning tank 5 to perform deep cleaning on the weighing box 9.

[0059] S7. After cleaning, control the lifting frame 4 to raise the box body fixing plate 100 and the box cover fixing plate 104 to a position higher than the opening of the ultrasonic cleaning tank 4, and control the spray mechanism again to perform a second rinse on the box body fixing plate 100, the box cover fixing plate 104 and the weighing box 9 fixed in the plate.

[0060] S8. After rinsing, turn on the hot air blower 16 and adjust the temperature. Control the drying mechanism to blow hot air toward the cleaned box fixing plate 100, box cover fixing plate 104 and weighing box 9 fixed in the plate to quickly dry the cleaned weighing box. After drying, drive the lifting frame 4 to move above the waste collection box 3 through the drive motor 10 and drive screw 11.

[0061] S9. Lower the box fixing plate 100 between the two sets of first electric telescopic rods 600, and control the two sets of first electric telescopic rods 600 to extend and engage with the locking holes on both sides of the box fixing plate 100; control each rotating telescopic rod of the lifting frame 4 to continue rotating to 45°. At this time, the first connecting block 401 is not engaged with the box fixing plate 100, and the second connecting block 402 continues to be engaged with the box cover fixing plate 104. Then control the third section of the three-section telescopic clamping tube to retract and disengage from the box fixing plate 100. At this time, the box fixing plate 100 is fixed between the two first electric telescopic rods 600. Again, drive the box fixing plate 100 to rotate 180° so that the plate opening faces upward through the first rotating motor 601.

[0062] S10. Control the second section of the three-section telescopic clamping tube of the lifting frame 4 to extend and drive the box cover fixing plate 104 to close with the box body fixing plate 100, and de-energize the electromagnetic chuck of the box cover fixing plate 104 so that the box cover of the weighing box 9 is not connected to the box cover fixing plate 104. Then rotate the three-section telescopic clamping tube to the original position, and then control the second and third sections of the tube to retract, so that the rotating three-section telescopic clamping tube is disengaged from the box body fixing plate 100 and the box cover fixing plate 104, so that the cleaned box body fixing plate 100 and the box cover fixing plate 104 can be removed.

[0063] This invention provides an efficient and reliable automatic cleaning and drying device for soil sample moisture content test chambers, successfully solving the cleaning difficulties in existing technologies, and has broad application prospects and promotional value. This system can significantly improve the efficiency and reliability of soil sample moisture content determination.

[0064] The above description is merely one embodiment of the present invention, and while it is detailed and specific, it should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An automatic cleaning and drying device for a soil sample moisture content test weighing box, characterized in that: The cleaning and drying device includes a weighing box fixing plate and a box body. The box body contains a waste soil collection box, a conveying mechanism, a lifting frame, a tilting mechanism, an ultrasonic cleaning tank, a spraying mechanism, and a drying mechanism. The conveying mechanism is located at the top of the box body, and the lifting frame is mounted on the conveying mechanism via a traveling mechanism and travels along the conveying mechanism. The waste soil collection box and the ultrasonic cleaning tank are arranged in a straight line at the bottom of the box body along the conveying direction of the conveying mechanism, with the waste soil collection box located in front of the ultrasonic cleaning tank. The tilting mechanism is located above the waste soil collection box and includes two tilting frames symmetrically arranged on the inner wall of the box body. The spraying mechanism and the drying mechanism are located above the ultrasonic cleaning tank. The spraying mechanism includes spray pipes and multiple spray heads distributed on the side walls of the box body, and the drying mechanism includes multiple hot air pipes and air outlets distributed on the side walls and top of the box body. The weighing box fixing plate includes a box body fixing plate, which has a lifting frame connecting part, a flipping frame connecting part, and multiple box body fixing slots that match the weighing box body. The box body fixing plate is installed between two flipping frames. The flipping frames flip the weighing box to pour the waste soil in the weighing box into the waste soil collection box. After the waste soil in the box body fixing plate is emptied, the opening of the box body fixing plate is kept facing downward and connected to the lifting frame. The walking mechanism drives the box body fixing plate to move above the ultrasonic cleaning tank, and the lifting frame drives the box body fixing plate to descend into the ultrasonic cleaning tank for cleaning. It also includes a lid fixing plate, on which a lifting frame connecting hole and multiple lid fixing slots that match the lid of the weighing box are provided. An electromagnetic chuck is provided inside the lid fixing plate, and the electromagnetic chuck is located on the bottom surface of the multiple lid fixing slots. The lifting frame includes at least two rotating lifting rods. The lifting area of ​​each rotating lifting rod is a three-section telescopic clamp tube. A first connecting block that matches the lifting frame connecting part is provided at the bottom of the third section of the three-section telescopic clamp tube, and a second connecting block that matches the lifting frame connecting hole is provided at the bottom of the second section of the three-section telescopic clamp tube. The flipping frame includes a first electric telescopic rod, one end of which is provided with a first rotary motor, which is fixedly mounted on the box body. The electric telescopic rod on this side is mounted on the output shaft of the first rotary motor, and the first electric telescopic rod on the other side is rotatably mounted on the inner wall of the box body. The flipping frame connecting part includes two locking holes symmetrically arranged on both sides of the middle part of the box body fixing plate, which match the first electric telescopic rods. When the two sets of first electric telescopic rods are extended, they are inserted into the two locking holes on the box body fixing plate, and the first rotary motor drives the box body fixing plate to rotate and flip. The first and second connecting blocks have the same structure, both including two protrusions symmetrically arranged on both sides of the three-section telescopic tube body. The lifting frame connecting part and the lifting frame connecting hole are both orifices with an annular groove in the middle. The upper and lower orifices of the lifting frame connecting hole match the cross-section of the location of the second connecting block. When the rotating lifting rod is retracted and connected to the weighing box fixing plate, both the first and second connecting blocks can pass through the lifting frame connecting hole, and the second connecting block is engaged in the annular groove in the middle of the lifting frame connecting hole. Within the range of rotation angle of the rotating lifting rod less than 180°, the second connecting block is engaged with the lifting frame connecting hole. The upper and lower orifices of the lifting frame connecting hole are provided with cross-shaped grooves. When the rotating lifting rod is retracted and connected to the weighing box fixing plate, the first connecting block is engaged in the annular groove in the middle of the lifting frame connecting part. Within the range of rotation angle of the rotating lifting rod less than 45°, the first connecting block is engaged with the lifting frame connecting part. When the rotating lifting rod rotates 45°, the first connecting block can disengage from the lifting frame connecting part.

2. The automatic cleaning and drying device for a soil sample moisture content test weighing box according to claim 1, characterized in that: The conveying mechanism includes a conveying motor and a conveying screw rotatably mounted on the top of the housing. The conveying screw is arranged in a straight line parallel to the waste collection box and the ultrasonic cleaning tank. The conveying screw is connected to the output end of the conveying motor. A guide rod parallel to the conveying screw is rotatably mounted on the top of the housing. The traveling mechanism includes a threaded sleeve and a guide sleeve mounted on the top of the lifting frame. The threaded sleeve is threadedly connected to the conveying screw, and the guide sleeve is slidably connected to the guide rod. Under the action of the conveying motor, the lifting frame moves along the conveying screw and the guide rod.

3. The automatic cleaning and drying device for a soil sample moisture content test weighing box according to claim 1, characterized in that: The spray pipes are installed inside the side panels of the housing, with the water inlet of the spray pipes leading to the outside of the housing and connected to an external water pump. The water outlet of the spray pipes is connected to each spray head through multiple branch water pipes. The spray heads are installed in the lower middle part of the housing, with the spray nozzles of the spray heads higher than the ultrasonic cleaning tank tilted downwards and the spray nozzles of the spray heads lower than the ultrasonic cleaning tank tilted upwards.

4. The automatic cleaning and drying device for a soil sample moisture content test weighing box according to claim 1, characterized in that: The drying mechanism also includes a hot air blower installed above the top of the box. The outlet of the hot air blower is connected to the inlet end of the hot air pipe and is connected to multiple air outlets through the hot air pipe. The hot air pipe is installed inside the top and side panels of the box. A door is provided on the side of the box adjacent to the waste soil collection box, and a drain outlet is provided on the side of the box adjacent to the ultrasonic cleaning tank. The drain outlet is connected to the bottom of the ultrasonic cleaning tank.

5. The automatic cleaning and drying device for a soil sample moisture content test weighing box according to claim 1, characterized in that: Each box has a ball buckle structure in its fixing groove, and the lower part of the weighing box has a slot that matches the ball buckle. The lifting frame is provided in two sets, each set of lifting frame includes a support plate and two rotating lifting rods. The support plate is connected to the walking mechanism. Each rotating lifting rod includes a second rotating motor and a second electric telescopic rod. The second electric telescopic rod is installed on the output shaft of the second rotating motor. Each second electric telescopic rod has three telescopic clamping tubes.

6. An automatic cleaning and drying method for a soil sample moisture content test weighing box, characterized in that: The cleaning and drying method uses the automatic cleaning and drying device for soil sample moisture content test weighing boxes as described in any one of claims 1 to 5 to clean the weighing box, and specifically includes the following steps: S1. After the moisture content test is completed, fix the weighing boxes containing dry soil samples into the box fixing plate of the weighing box fixing plate, and install the box fixing plate containing the weighing boxes between two flipping frames. Pour the dry soil samples in the weighing boxes into the waste soil collection box by flipping the frames. S2. After the dry soil sample in the box fixing plate is poured out, keep the opening of the box fixing plate facing down and connect it to the lifting frame. Then, detach the box fixing plate from the flipping frame and move the lifting frame and the box fixing plate above the ultrasonic cleaning tank through the walking mechanism. Control the spray mechanism to rinse the box fixing plate and the weighing box fixed in the plate once. After rinsing, control the lifting frame to extend and lower the box fixing plate into the ultrasonic cleaning tank to clean the weighing box symmetrically. S3. After cleaning, control the lifting frame to retract and raise the box fixing plate to a position higher than the opening of the ultrasonic cleaning tank, and control the spray mechanism to perform a second rinse on the box fixing plate and the weighing box fixed inside the plate. S4. After rinsing, control the drying mechanism to blow hot air toward the cleaned box fixing plate and the weighing box fixed inside the plate to quickly dry the cleaned weighing box.

7. The automatic cleaning and drying method for a soil sample moisture content test weighing box according to claim 6, characterized in that, In step S1, the lifting frame and the box cover fixing plate simultaneously open the lids of multiple weighing boxes embedded in the box body fixing plate. The specific process is as follows: S101. Fix and embed multiple weighing boxes with lids into the box body fixing plate, then invert the box lid fixing plate on top of the box body fixing plate, with the lid of each weighing box correspondingly embedded in the box lid fixing groove, then install the weighing box fixing plate as a whole between two flipping frames, and energize the electromagnetic chuck of the box lid fixing plate to use the electromagnetic chuck to adsorb and fix the lids of the weighing boxes. S102. Control the second section of the three-section telescopic clamping tube to extend until the second connecting block at the bottom of the second section of the tube is embedded in the lifting frame connecting card hole on the box cover fixing plate, and the first connecting block at the bottom of the third section of the tube is embedded in the lifting frame connecting card hole on the box body fixing plate. Control the lifting frame to rotate 15 to 30°. At this time, the first connecting block and the second connecting block are respectively engaged with the box body fixing plate and the box cover fixing plate. S103. Control the retraction of the second section of the three-section telescopic clamping tube. During the retraction of the second section of the tube, the lid fixing plate will rise and open the lids of multiple weighing boxes at the same time. The height of the retraction of the second section of the tube is greater than 1 / 2 the length of the lid fixing plate. S104. Control the lifting frame to continue rotating to 45°. At this time, the first connecting block is not engaged with the box fixing plate, and the second connecting block is engaged with the box cover fixing plate. Then, control the third section of the three-section telescopic clamping tube to retract and disengage from the box fixing plate. Finally, control the flipping frame to drive the box fixing plate to flip 180 degrees until the opening of the box fixing plate faces down and is parallel to the opening surface of the waste collection box.

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