Crushing device and method for field sampling

Abstract

The invention discloses a crushing device and method for field sampling, and belongs to the field of crushing and sampling. The invention relates to a crushing device and method for field sampling, the crushing device comprises a support, a sampling pipe slidably mounted on the support, a driving part for driving the sampling pipe to ascend and descend is arranged in the support, a drill bit is fixedly connected to the sampling pipe, a filter plate is fixedly mounted in the sampling pipe, and a liquid storage tank is mounted on the sampling pipe in an inserted manner. Wherein a plurality of liquid inlets are formed in the liquid storage tank, a plurality of liquid outlets are formed in the sampling pipe, and the liquid inlets are matched with the liquid outlets; by arranging the filter plate and the liquid storage tank, under continuous deep sampling of the sampling pipe, downward pressure is generated on an internal sample in cooperation with soil, the solid-liquid separation sampling function is achieved through centrifugal force generated by rotation of the sampling pipe, sample pollution and damage are effectively avoided, and the sampling quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of crushing sampling, and in particular to a crushing device and method for field sampling. Background Art

[0002] Sampling refers to the process of extracting individuals or samples from a population, that is, the process of testing or observing the population. There are two types of sampling: random sampling and non-random sampling. The former refers to the sampling method of extracting samples from a population in accordance with the principle of randomization. It is not subjective and includes simple random sampling, systematic sampling, cluster sampling and stratified sampling. The latter is a method of extracting samples based on the researcher's point of view, experience or relevant knowledge, which is obviously subjective. In the existing field sampling technology, it is often necessary to crush the collected samples for further analysis. The field environment is complex and changeable, which puts higher requirements on the stability and adaptability of the sampling equipment. The crushing device for field sampling is specially designed for crushing and sampling samples such as rocks and ores in the field environment. These devices usually have the characteristics of portability, high efficiency and durability to adapt to the complex and changeable working environment in the field.

[0003] Existing field sampling equipment can only take out the soil from the sampling tube by deepening the sampling tube when performing crushing sampling, when sampling soil or riverbed, and cannot separate liquid samples for multi-layer sampling. It is easy to cause sample contamination and damage during the crushing process, and the usage scenario is single, affecting work efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing technology has a single usage scenario and cannot achieve solid-liquid separation sampling, and proposes a crushing device and method for field sampling.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A crushing device and method for field sampling, comprising a bracket, and also comprising: a sampling tube slidably mounted on the bracket, wherein a driving part for driving the sampling tube to rise and fall is arranged inside the bracket, a drill bit is fixedly connected to the sampling tube, a filter plate is fixedly installed inside the sampling tube, and a liquid storage tank is plugged and installed on the sampling tube, wherein a plurality of liquid inlets are provided on the liquid storage tank, a plurality of liquid discharge ports are provided on the sampling tube, and the liquid inlets and liquid discharge ports cooperate with each other.

[0007] Preferably, the driving part includes a threaded rod rotatably mounted on both sides of the bracket, the threaded rod is installed with a slide through threaded engagement, a driving motor is fixedly connected inside the slide, wherein the output shaft of the driving motor is fixedly connected to a connecting rod, a mounting head is fixedly connected to the sampling tube, and the connecting rod and the mounting head are installed through threaded engagement.

[0008] Preferably, a sprocket is fixedly connected to the threaded rod, and the two sprockets are connected by chain transmission. A lifting motor is fixedly installed in the bracket, and the threaded rod is fixedly connected to the output shaft of the lifting motor.

[0009] Furthermore, a slide groove is provided on the bracket, the threaded rod is rotatably installed in the slide groove, and the slide plate is slidably installed in the slide groove.

[0010] In order to prevent the sample in the liquid storage tank from leaking out, further, a baffle is slidably installed on the liquid inlet, a support spring is fixedly connected to the baffle, and the free end of the support spring is fixedly connected to the inner wall of the liquid storage tank.

[0011] In order to facilitate taking out the sample in the liquid storage tank, further, a liquid outlet is opened on the liquid storage tank, and an inclined plate is attached to the outer wall of the liquid outlet by magnetic adsorption.

[0012] In order to support the sampling tube, further, both sides of the bracket are fixedly connected with limiting grooves, and a piston plate is slidably installed in the limiting groove, wherein a tension spring is fixedly connected to the piston plate, and the free end of the tension spring is fixedly connected to the bracket, and a chuck is fixedly connected to the piston plate, and the chuck fits against the outer wall of the sampling tube.

[0013] In order to reduce the friction during support, further, a plurality of axles are fixedly connected inside the chuck, a rotating wheel is rotatably mounted on the axle, and the rotating wheel fits the sampling tube.

[0014] In order to facilitate the disassembly of the sampling tube, further, a bolt is engaged and installed on the limiting groove, and a socket is opened on the piston plate, and the bolt matches the socket.

[0015] A method for crushing for field sampling, further comprising the following steps:

[0016] S1. Place the drill bit at the sampling location and start the drive motor to drive the sampling tube to rotate and make a preliminary cut at the sampling location;

[0017] S2, turning on the lifting motor to rotate the threaded rod, driving the sampling tube to move downward, and providing downward drilling force for the rotating drill bit;

[0018] S3, the sampling tube continues to descend to take samples until the liquid storage tank is immersed in the sampling position, and the water in the sample enters the liquid storage tank through the continuous deep squeezing of the sampling tube and the centrifugal force generated by the rotation of the sampling tube;

[0019] S4. After taking out the sampling tube, insert the bolt into the socket, clamp the mounting head by the rotating wheel and operate the driving motor to flip it, so that the sampling tube falls off the connecting rod and the sample is taken out.

[0020] Compared with the prior art, the present invention provides a crushing device and method for field sampling, which has the following beneficial effects:

[0021] 1. The crushing device and method for field sampling, by setting a filter plate and a liquid storage tank, cooperates with the soil to generate downward pressure on the internal sample under the continuous in-depth sampling of the sampling tube, and the centrifugal force generated by the rotation of the sampling tube, realizes the function of solid-liquid separation sampling, effectively avoids sample contamination and damage, and improves the sampling quality.

[0022] 2. The crushing device and method for field sampling, through the design of the slidably mounted sampling tube and the driving part, enables the sampling device to adapt to sampling environments of different depths and hardnesses, and facilitates separate sampling of samples at different depths, thereby improving the flexibility and adaptability of sampling.

[0023] 3. The crushing device and method for field sampling controls the opening and closing of the liquid inlet by sliding a baffle installed at the liquid inlet. The baffle is impacted by the liquid and overcomes the elastic force of the supporting spring to move outward, thereby allowing the liquid to enter the liquid storage tank. When the liquid flow decreases or stops, the liquid inlet is closed to prevent liquid backflow or external impurities from entering.

[0024] 4. The crushing device and method for field sampling, through the arrangement of the clamping plate and the rotating wheel, enables the chuck to fit tightly against the outer wall of the sampling tube, thereby ensuring the stability and safety of the sampling tube during the mobile sampling process and providing effective support for the sampling tube. At the same time, the rolling friction of the rotating wheel also reduces the resistance of the sampling tube during the movement and rotation process. After the sampling is completed, the bolt is inserted into the socket to limit the piston plate, so that the rotating wheel clamps the sampling tube, and the driving motor is controlled to reverse to remove the sampling tube and take out the internal sample.

[0025] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention can adapt to sampling in different scenarios and samples, and can separate the solid and liquid into samples for storage during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a crushing device for field sampling proposed by the present invention;

[0027] Figure 2 A schematic diagram of the support structure of a crushing device for field sampling proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the driving part of a crushing device for field sampling proposed by the present invention;

[0029] Figure 4 A schematic diagram of the partial structure of a sampling tube of a field sampling crushing device proposed by the present invention;

[0030] Figure 5 A schematic diagram of the disassembly structure of a liquid storage tank of a field sampling crushing device proposed by the present invention;

[0031] Figure 6 A schematic diagram of the cross-sectional structure of a sampling tube of a crushing device for field sampling proposed by the present invention;

[0032] Figure 7 A crushing device for field sampling proposed by the present invention Figure 2 A magnified image;

[0033] Figure 8 This is a schematic diagram of the internal structure of a limiting groove of a crushing device for field sampling proposed by the present invention.

[0034] In the figure: 1. bracket; 11. slide; 2. sampling tube; 21. drill bit; 22. mounting head; 23. drain port; 24. filter plate; 3. drive motor; 31. connecting rod; 4. threaded rod; 41. sprocket; 42. chain; 43. lifting motor; 44. slide plate; 5. liquid storage tank; 51. inclined plate; 52. liquid outlet; 53. support spring; 54. baffle; 55. liquid inlet; 6. limit groove; 61. piston plate; 62. chuck; 63. wheel axle; 64. rotating wheel; 65. tension spring; 66. socket; 67. bolt. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Example:

[0038] Reference Figure 1-Figure 6 A crushing device for field sampling includes a bracket 1 as the basic supporting structure of the whole device. The bracket 1 is not only firmly fixed on the ground, but also provides a mounting platform for a sampling tube 2 and other components. The bracket 1 also includes: a sampling tube 2 slidably mounted on the bracket 1. The sampling tube 2 is the core component of the device and is responsible for sampling deep into the soil or rock. It is slidably mounted on the bracket 1, which means that the height of the sampling tube 2 can be adjusted as needed to meet the sampling requirements at different depths. The drill bit 21 fixedly connected to the sampling tube 2 is used to crush the soil or rock. , making it easier to collect, wherein a driving part for driving the sampling tube 2 to rise and fall is arranged inside the bracket 1, a drill bit 21 is fixedly connected to the sampling tube 2, a filter plate 24 is fixedly installed inside the sampling tube 2, and a liquid storage tank 5 plugged and installed on the sampling tube 2 is used to collect liquid samples filtered by the filter plate 24, wherein a plurality of liquid inlets 55 are provided on the liquid storage tank 5, and a plurality of liquid discharge ports 23 are provided on the sampling tube 2, and the liquid inlet 55 and the liquid discharge port 23 cooperate with each other to ensure that during the sampling process, the liquid sample can smoothly flow from the sampling tube 2 into the liquid storage tank 5.

[0039] The filter plate 24 is used for sampling riverbed sludge. The pressure generated by the sampling tube 2 that continuously and deeply samples cooperates with the filter plate 24 to squeeze the sludge. The filter plate 24 filters the sludge and filters out the water in the sludge through the filter plate. The liquid sample flows into the liquid storage tank 5 through the discharge port 23 for storage.

[0040] When it is necessary to collect soil or rock samples, first start the drive motor 3 to drive the sampling tube 2 to rotate and preliminarily crush the surface of the sampling location, then start the lifting motor 43 to drive the threaded rod 4 to rotate, and the rotation of the threaded rod 4 transmits power to the sampling tube 2 through the slide plate 44 and the connecting rod 31, causing it to begin to descend. During the descent, the drill bit 21 crushes the soil or rock to make it easier to collect, and the filter plate 24 inside the sampling tube 2 squeezes the silt to filter out the moisture therein, while the solid sample remains in the sampling tube 2.

[0041] Reference Figure 1-Figure 3The driving part includes a threaded rod 4 rotatably mounted on both sides of the bracket 1. As the core component of the transmission mechanism, the threaded rod 4 enables it to drive the meshing parts to perform lifting and lowering movements by rotating. The threaded rod 4 is installed with a slide plate 44 through threaded engagement. The slide plate 44 is fixedly connected to a driving motor 3. When the threaded rod 4 rotates, the slide plate 44 will perform lifting and lowering movements along the direction of the threaded rod 4. The output shaft of the driving motor 3 is fixedly connected with a connecting rod 31. The sampling tube 2 is fixedly connected with a mounting head 22. The connecting rod 31 and the mounting head 22 are installed through threaded engagement, which is convenient for disassembling the sampling tube 2 and taking out the sample collected in the sampling tube 2. A sprocket 41 is fixedly connected to the threaded rod 4. The two sprockets 41 are driven by a chain 42 A lifting motor 43 is fixedly installed in the bracket 1, and the threaded rod 4 is fixedly connected to the output shaft of the lifting motor 43, so that the synchronous rotation of the two threaded rods 4 is realized, and the stability of the sampling tube 2 during the lifting process is ensured. The lifting motor 43 only needs to drive one of the threaded rods 4 to rotate, and the other threaded rod 4 can be synchronously rotated through the chain 42. A slide groove 11 is opened on the bracket 1, and the threaded rod 4 is rotatably installed in the slide groove 11, and the slide plate 44 is slidably installed in the slide groove 11. The slide groove 11 is used to limit the movement trajectory of the threaded rod 4 and the slide plate 44. The slide groove 11 allows the threaded rod 4 to stably rotate therein, and the slide plate 44 can slide smoothly therein, thereby ensuring the verticality and stability of the sampling tube 2 during the lifting process.

[0042] Reference Figure 4-Figure 6 A baffle 54 is slidably mounted on the liquid inlet 55, and a supporting spring 53 is fixedly connected to the baffle 54. The free end of the supporting spring 53 is fixedly connected to the inner wall of the liquid storage tank 5. The baffle 54 is slidably mounted on the liquid inlet 55. Its main function is to control the opening and closing of the liquid inlet 55. When the liquid sample in the sampling tube 2 flows into the liquid storage tank 5 through the discharge port 23, the sampling tube 2 is driven by the driving motor 3 to continuously rotate, so that the liquid generates centrifugal force. The baffle 54 will first be impacted by the liquid and overcome the elastic force of the supporting spring 53 to move outward, thereby allowing the liquid to enter the liquid storage tank 5. When the liquid flow rate decreases or stops, the elastic force of the supporting spring 53 will push the baffle 54 back to its original position, closing the liquid inlet 55, and preventing the liquid from entering the liquid storage tank 5. To prevent liquid backflow or external impurities from entering, the support spring 53 provides the baffle 54 with necessary elastic support, so that it can automatically close the liquid inlet 55 when needed. The support spring 53 ensures that it can effectively support the baffle 54 and flexibly respond to liquid impact. A liquid outlet 52 is provided on the liquid storage tank 5 to facilitate easy and clean discharge of the sample after sampling is completed. The outer wall of the liquid outlet 52 is magnetically adsorbed with an inclined plate 51. The magnetic adsorption design of the inclined plate 51 makes it very convenient to install and disassemble, and it can be replaced or cleaned at any time as needed. And through the inclined surface of the inclined plate 51, the chuck 62 under the bracket 1 can slide smoothly from the inclined plate 51 when the sampling tube 2 is continuously sampling.

[0043] Reference Figure 7-Figure 8 , both sides of the bracket 1 are fixedly connected to the limiting grooves 6, which provide a sliding track for the piston plate 61. The design of the limiting grooves 6 ensures the stability and directionality of the piston plate 61 during movement to prevent it from deviating from the predetermined path. The piston plate 61 is slidably installed in the limiting grooves 6, and a tension spring 65 is fixedly connected to the piston plate 61. The free end of the tension spring 65 is fixedly connected to the bracket 1. A chuck 62 is fixedly connected to the piston plate 61, and the chuck 62 fits the outer wall of the sampling tube 2. The tension spring 65 provides an outward elastic force for the piston plate 61, so that the chuck 62 can fit closely to the outer wall of the sampling tube 2, ensuring the stability and safety of the sampling tube 2 during the mobile sampling process. A plurality of wheel axles 63 are fixedly connected to the chuck 62, and a rotating wheel 64 is rotatably installed on the wheel axle 63. The rotating wheel 64 The rotating wheel 64 fits with the sampling tube 2, and fits with the outer wall of the sampling tube 2, allowing the sampling tube 2 to be rotated or fine-tuned to a certain extent in a fixed state to adapt to different sampling needs. At the same time, the rolling friction of the rotating wheel 64 also reduces the resistance of the sampling tube 2 during movement. A bolt 67 is meshed and installed on the limiting groove 6, and a socket 66 is provided on the piston plate 61. The bolt 67 cooperates with the socket 66. The cooperation between the bolt 67 and the socket 66 allows the user to fix or release the piston plate 61 by rotating the bolt 67. When the sampling tube 2 needs to be fixed, the user can screw the bolt 67 into the socket 66 to limit the movement of the piston plate 61. When the sampling tube 2 needs to be released, the bolt 67 can be screwed out of the socket 66, making the fixing and releasing of the sampling tube 2 simple and quick.

[0044] When sampling rocks or ores, the drive motor 3 and the lifting motor 43 are turned on synchronously, and the rotary cutting of the drill bit 21 and the downward pressure increase the destructive force on the sample, so that hard samples such as rocks and ores are broken and enter the sampling tube 2.

[0045] When sampling soil or riverbed silt, only the lifting motor 43 is turned on, and the sampling tube 2 continues to go deeper to complete the collection of soil and other samples. After the sampling tube 2 is inserted and the sampling is completed, it continues to go deeper, and the driving motor 3 is turned on and the soil or silt in the sampling tube 2 is squeezed to squeeze the liquid out through the filter plate 24, and the centrifugal force generated by the rotation increases the impact force of the liquid on the baffle 54, so that the liquid can smoothly enter the liquid storage tank 5.

[0046] When sampling liquids such as river water, the liquid storage tank 5 is immersed in the liquid through the sampling tube 2, and the driving motor 3 is turned on to drive the sampling tube 2 to rotate. When the sampling tube 2 rotates, the baffle 54 is thrown outward by the action of centrifugal force to squeeze the supporting spring 53, the liquid inlet 55 is opened, and the liquid smoothly enters the liquid storage tank 5 through the liquid inlet 55 to complete the sampling.

[0047] A method for crushing for field sampling, further comprising the following steps:

[0048] S1, placing the drill bit 21 at the sampling location and turning on the drive motor 3 to drive the sampling tube 2 to rotate, and preliminarily cutting the sampling location;

[0049] S2, turning on the lifting motor 43 to rotate the threaded rod 4, driving the sampling tube 2 to move downward, and providing downward drilling force for the rotating drill bit 21;

[0050] S3, the sampling tube 2 continues to descend to take samples until the liquid storage tank 5 is immersed in the sampling position, and the water in the sample enters the liquid storage tank 5 through the continuous deep squeezing of the sampling tube 2 and the centrifugal force generated by the rotation of the sampling tube 2;

[0051] S4. After taking out the sampling tube 2, insert the bolt 67 into the insertion hole 66, clamp the mounting head 22 through the rotating wheel 64 and operate the driving motor 3 to flip, so that the sampling tube 2 falls off the connecting rod 31 and the sample is taken out.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crushing device for field sampling, comprising a support (1), characterized in that: Also includes: A sampling tube (2) is slidably mounted on the bracket (1), Wherein, a driving unit for driving the sampling tube (2) to rise and fall is arranged inside the bracket (1), a drill bit (21) is fixedly connected to the sampling tube (2), and a filter plate (24) is fixedly installed inside the sampling tube (2); A liquid storage tank (5) is plugged and installed on the sampling tube (2). The liquid storage tank (5) is provided with a plurality of liquid inlets (55), the sampling tube (2) is provided with a plurality of liquid discharge ports (23), and the liquid inlets (55) and the liquid discharge ports (23) are matched with each other.

2. A crushing device for field sampling according to claim 1, characterized in that: The driving part comprises a threaded rod (4) rotatably mounted on both sides of the bracket (1), the threaded rod (4) being mounted with a slide plate (44) through threaded engagement, and the slide plate (44) being fixedly connected with a driving motor (3) inside. The output shaft of the driving motor (3) is fixedly connected to a connecting rod (31), the sampling tube (2) is fixedly connected to a mounting head (22), and the connecting rod (31) and the mounting head (22) are mounted by threaded engagement.

3. A crushing device for field sampling according to claim 2, characterized in that: A sprocket (41) is fixedly connected to the threaded rod (4), and the two sprockets (41) are connected in transmission via a chain (42). A lifting motor (43) is fixedly installed in the bracket (1), and the threaded rod (4) is fixedly connected to the output shaft of the lifting motor (43).

4. A crushing device for field sampling according to claim 3, characterized in that: The bracket (1) is provided with a slide groove (11), the threaded rod (4) is rotatably installed in the slide groove (11), and the slide plate (44) is slidably installed in the slide groove (11).

5. A crushing device for field sampling according to claim 1, characterized in that: A baffle (54) is slidably mounted on the liquid inlet (55), a support spring (53) is fixedly connected to the baffle (54), and a free end of the support spring (53) is fixedly connected to the inner wall of the liquid storage tank (5).

6. A crushing device for field sampling according to claim 5, characterized in that: The liquid storage tank (5) is provided with a liquid outlet (52), and an inclined plate (51) is magnetically adsorbed on the outer wall of the liquid outlet (52).

7. A crushing device for field sampling according to claim 1, characterized in that: Both sides of the bracket (1) are fixedly connected to limit grooves (6), and a piston plate (61) is slidably installed in the limit groove (6). The piston plate (61) is fixedly connected to a tension spring (65), the free end of which is fixedly connected to the bracket (1), and the piston plate (61) is fixedly connected to a chuck (62), which fits the outer wall of the sampling tube (2).

8. A crushing device for field sampling according to claim 7, characterized in that: A plurality of wheel axles (63) are fixedly connected inside the chuck (62), and a rotating wheel (64) is rotatably mounted on the wheel axle (63), and the rotating wheel (64) is in close contact with the sampling tube (2).

9. A crushing device for field sampling according to claim 8, characterized in that: A bolt (67) is meshedly mounted on the limiting groove (6), and a plug hole (66) is provided on the piston plate (61), and the bolt (67) matches the plug hole (66).

10. A sampling method comprising the crushing device for field sampling according to any one of claims 1 to 9, characterized in that: The following steps are also included: S1, placing the drill bit (21) at the sampling location and turning on the drive motor (3) to drive the sampling tube (2) to rotate, thereby preliminarily cutting the sampling location; S2, turning on the lifting motor (43) to rotate the threaded rod (4), driving the sampling tube (2) to move downward, and providing downward drilling force for the rotating drill bit (21); S3, the sampling tube (2) continues to descend to take samples until the liquid storage tank (5) enters the sampling position, and the water in the sample enters the liquid storage tank (5) through the continuous and deep squeezing of the sampling tube (2) and the centrifugal force generated by the rotation of the sampling tube (2); S4. After the sampling tube (2) is taken out, the bolt (67) is inserted into the insertion hole (66), the mounting head (22) is clamped by the rotating wheel (64) and the driving motor (3) is controlled to flip, so that the sampling tube (2) falls off the connecting rod (31) and the sample is taken out.

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