Device for collecting mixed sample from surface soil

Abstract

A mixed sample collecting device for surface soil belongs to the field of soil sampling and comprises a sampling tube and a circular collecting box, handles are fixedly mounted on two sides of the collecting box respectively, a motor is fixedly mounted on the collecting box, a spiral blade is arranged in the sampling tube, an output shaft of the motor is fixedly connected with a transmission shaft, and the spiral blade is fixedly mounted on the transmission shaft. The device is simple in structure and ingenious in conception, during sampling, when soil needing to be removed reaches the space between the upper pipe and the lower pipe, the soil can fall off from the gap and cannot be collected, the sliding sleeve can be blocked by the ground, and when the gap between the upper pipe and the lower pipe is closed, the spiral blade can convey the soil needing to be collected into the collecting box; during sampling, a crushing plate and a stop lever arranged on the transmission shaft can preliminarily crush sampled soil, so that soil mixing and conveying are facilitated, actual requirements can be met, and the device is suitable for popularization.

Description

Technical Field

[0001] The invention belongs to the field of soil sampling, in particular to a device for collecting mixed samples of surface soil. Background Art

[0002] Since soil is an inhomogeneous system, in order to understand its pollutant status, physical and chemical properties, the entire piece of soil used for measurement cannot be directly moved into the laboratory for analysis. Therefore, it is necessary to select several representative points within a certain area to take samples and mix them to form a mixed sample. A soil sampler is required during the collection process. The existing soil sampler will collect and mix all the sampled soil within the sampling point during sampling. If the soil at a certain distance below the ground is not needed, the existing sampler cannot remove this part, which has limitations and is inconvenient to use. Therefore, we designed a device for collecting mixed samples that can remove excess soil. Summary of the Invention

[0003] The present invention provides a device for collecting mixed samples of surface soil, which is used to solve the defects in the prior art.

[0004] The present invention is achieved through the following technical solutions:

[0005] A device for collecting mixed samples of surface soil comprises a sampling tube and a circular collecting box, wherein handles are fixedly mounted on both sides of the collecting box, a motor is fixedly mounted on the collecting box, a spiral blade is provided in the sampling tube, an output shaft of the motor is fixedly connected to a transmission shaft, the spiral blade is fixedly mounted on the transmission shaft, a threaded hole is provided on the collecting box, and a box cover is threadedly mounted, the sampling tube comprises an upper tube and a lower tube, the upper tube and the lower tube are fixedly connected together by several connecting rods, a sliding sleeve is slidably mounted on the lower tube, a flange is provided on the sliding sleeve, a crushing plate is fixedly mounted on the transmission shaft, and a retaining rod is fixedly mounted in the lower tube.

[0006] As described above, in a device for collecting mixed samples of surface soil, several sliders are fixedly installed on the inner wall of the sliding sleeve, and several sliding grooves are provided on the lower tube. The sliders are slidably installed in the corresponding sliding grooves, and the sliders are elastically connected to the inner walls of the sliding grooves by springs.

[0007] As described above, in the device for collecting mixed samples of surface soil, a sleeve is slidably installed on the upper tube, a nut is fixedly installed on the sleeve, a threaded rod is rotatably installed on the upper tube, and the threaded rod is threadedly connected to the nut.

[0008] In the device for collecting mixed samples of surface soil as described above, a plurality of U-shaped stirring rods are installed in the collection box, and the U-shaped stirring rods are connected to the transmission shaft, and the transmission shaft can drive the U-shaped stirring rods to revolve around the transmission shaft.

[0009] As described above, the device for collecting mixed samples of surface soil comprises a transmission shaft connected to a plurality of U-shaped stirring rods through a planetary gear reducer, the planetary gear reducer includes a sun gear, the outer periphery of the sun gear is meshed with a plurality of planetary gears, the planetary gears are rotatably mounted in a collection box, one side of the planetary gears is meshed with a same ring gear, the ring gear is rotatably mounted in the collection box, and the U-shaped stirring rods are fixedly mounted on the ring gear.

[0010] In the device for collecting mixed samples of surface soil as described above, a vertical rod is fixedly installed in the collection box.

[0011] In the device for collecting mixed samples of surface soil as described above, the gear ring is rotatably connected to the inner wall of the collection box via a sealed bearing, the transmission shaft is rotatably connected to the dustproof plate via a sealed bearing, and the dustproof plate is fixedly connected to the gear ring.

[0012] In the device for collecting mixed samples of surface soil as described above, the lower ends of the lower tube and the sliding sleeve are respectively provided with rounded corners, and the lower end of the transmission shaft is a pointed end.

[0013] In the device for collecting mixed samples of surface soil as described above, a knob is fixedly installed on the threaded rod.

[0014] The advantages of the present invention are: the present invention has a simple structure and an ingenious design. When the device is sampling, when the soil to be removed reaches between the upper tube and the lower tube, it can fall from the gap and will not be collected. The sliding sleeve can close the gap between the upper tube and the lower tube under the obstruction of the ground, and the spiral blades can transport the soil to be collected into the collection box; when sampling, the crushing plate and the baffle rod arranged on the transmission shaft can preliminarily crush the sampled soil to facilitate soil mixing and transportation, which can meet actual needs and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of a planetary gear reducer.

[0017] Figure markings: 1. collecting box, 2. handle, 3. motor, 4. spiral blade, 5. transmission shaft, 6. upper tube, 7. lower tube, 8. sliding sleeve, 9. crushing plate, 10. box cover, 11. stop rod, 12. connecting rod, 20. slider, 21. slide groove, 22. spring, 30. sleeve, 31. nut, 32. threaded rod, 40. U-shaped stirring rod, 50. sun gear, 51. planetary gear, 52. ring gear, 60. vertical rod, 70. dustproof plate, 80. chamfered corner, 90. knob. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] A device for collecting mixed samples of surface soil, such as Figure 1 、 Figure 2As shown, it includes a sampling tube and a circular collecting box 1, handles 2 are fixedly installed on both sides of the collecting box 1, a motor 3 is fixedly installed on the collecting box 1, a spiral blade 4 is provided in the sampling tube, the output shaft of the motor 3 is fixedly connected to the transmission shaft 5, the output shaft of the motor 3 extends into the collecting box 1, and is rotatably connected to the inner wall of the reserved hole on the collecting box 1 through a bearing, the spiral blade 4 is fixedly installed on the transmission shaft 5, the inner periphery of the spiral blade 4 is fixedly connected to the outer periphery of the transmission shaft 5, a threaded hole is provided on the collecting box 1, and a box cover 10 is threadedly installed, the sampling tube includes an upper tube 6 and a lower tube 7, the upper tube 6 and the lower tube 7 are fixedly connected together by several connecting rods 12, one end of the connecting rod 12 is fixedly connected to the upper tube 6, and the other end of the connecting rod 12 is fixedly connected to the lower tube 7, a sliding sleeve 8 is slidably mounted on the lower tube 7, and the sliding sleeve 8 is provided with a flange, a crushing plate 9 is fixedly installed on the transmission shaft 5, and a blocking rod 11 is fixedly installed in the lower tube 7. The present invention has a simple structure and an ingenious design. When the device is sampling, when the soil to be removed reaches the space between the upper tube 6 and the lower tube 7, it can fall from the gap and will not be collected. The sliding sleeve 8 can close the gap between the upper tube 6 and the lower tube 7 under the obstruction of the ground, and the spiral blade 4 can transport the soil to be collected into the collection box 1; when sampling, the crushing plate 9 and the baffle 11 arranged on the transmission shaft 5 can preliminarily crush the sampled soil to facilitate soil mixing and transportation, which can meet actual needs and is suitable for promotion. When using the device, the motor 3 is powered on, and then the lower tube 7 is aligned with the sampling point and inserted into the soil. The motor 3 drives the transmission shaft 5, the spiral blade 4, and the crushing plate 9 to rotate. The crushing plate 9 breaks the soil at the sampling point. Under the interaction with the blocking rod 11, the soil is further broken and then transported upward by the spiral blade 4. When the soil reaches the upper end of the lower tube 7, a part of the soil in the upper tube 7 first enters, that is, the soil at a certain distance below the ground that does not need to be collected will fall from the space between the upper tube 6 and the lower tube 7 and will not be collected. As the soil in the lower tube 7 After penetrating into the soil, the sliding sleeve 8 contacts the soil and moves upward relative to the lower tube 7 under the obstruction of the soil, closing the space between the upper tube 6 and the lower tube 7. The sampled soil can be transported to the collection box 1 by the spiral blade 4 and collected. When the sliding sleeve 8 can no longer move upward relative to the lower tube 7, it is gradually inserted into the soil. After the sampling of the sampling point is completed, a new sampling point is selected and the above process is repeated. The soils of the two sampling points can be mixed in the collection box 1. When it is necessary to take out the soil sample, the box cover 10 is unscrewed to pour the soil sample out of the collection box 1.

[0020] Specifically, if Figure 1As shown, in this embodiment, several sliders 20 are fixedly mounted on the inner wall of the sliding sleeve 8, and several chute grooves 21 are defined in the lower tube 7. The sliders 20 are slidably mounted within the corresponding chute grooves 21. The sliders 20 are elastically connected to the inner wall of the chute grooves 21 via springs 22. One end of the spring is fixedly connected to the slider 29, and the other end is fixedly connected to the inner wall of the chute grooves 21. The sliders 20 slide within the chute grooves 21, guiding the sliding of the sliding sleeve 8 and limiting its sliding range. When the sliders 20 slide upward along the chute grooves 21, the springs 22 are compressed, allowing the sliding sleeve 8 to return to its original position after losing the obstruction of the soil, relying on the elastic force of the springs 22, ready for the next use.

[0021] Specifically, such as Figure 1 As shown, in this embodiment, a sleeve 30 is slidably mounted on the upper tube 6, a nut 31 is fixedly mounted on the sleeve 30, a threaded rod 32 is rotatably mounted on the upper tube 6, a support plate is fixedly mounted on the upper tube 6, the threaded rod 32 is rotatably connected to the inner wall of the reserved hole on the support plate through a bearing, and the threaded rod 32 is threadedly connected to the nut 31. When the threaded rod 32 is rotated, since the sleeve 30 cannot rotate along with the threaded rod 32, the sleeve 30 can only move along the threaded rod 32, thereby changing the position of the sleeve 30 on the upper tube 6. The sleeve 30 is closer to the sliding sleeve 8, and the sliding sleeve 8 will close the gap between the upper tube 6 and the lower tube 7 earlier, so that less soil falls sideways, thereby adjusting the amount of soil removed according to demand. When the sleeve 30 and the sliding sleeve 7 are in contact with each other, the sampled soil will be completely transported to the collection box 1.

[0022] Further, such as Figure 1 As shown, the collection box 1 of this embodiment is equipped with several U-shaped stirring rods 40, which are in driving connection with the transmission shaft 5. The transmission shaft 5 can drive the U-shaped stirring rods 40 to revolve around the transmission shaft 5. The rotation of the transmission shaft 5 drives the several U-shaped stirring rods 40 to revolve, thereby stirring and mixing the soil in the collection box 1.

[0023] Furthermore, Figure 1As shown, the transmission shaft 5 of this embodiment is connected to a plurality of U-shaped stirring rods 40 via a planetary gear reducer. The planetary gear reducer includes a sun gear 50, the outer periphery of which is meshed with a plurality of planetary gears 51. The planetary gears 51 are rotatably mounted within the collection box 1. The planetary gears 51 are rotatably mounted on a support rod via bearings, which is fixedly mounted within the collection box 1. One side of the planetary gears 51 is meshed with a common ring gear 52, which is rotatably mounted within the collection box 1. The circle on which the plurality of planetary gears 51 are located, the ring gear 52, the sun gear 50, and the transmission shaft 5 are coaxially arranged, and the U-shaped stirring rods 40 are fixedly mounted on the ring gear 52. When the motor 3 is running, the transmission shaft 5 rotates, which in turn drives the sun gear 50 to rotate. The planetary gears 51 then drive the ring gear 52 to rotate, reducing the high speed of the motor 3 to the low speed of the ring gear 52, thereby driving the U-shaped stirring rods 40 to revolve at a lower speed, thereby preventing excessive rotation speed from splashing the sampled soil and preventing the U-shaped stirring rods 40 from getting stuck.

[0024] Furthermore, Figure 1 As shown, the collecting box 1 of this embodiment is fixedly installed with a vertical rod 60. The combination of the vertical rod 60 and the U-shaped stirring rod 40 can achieve a better mixing effect of the soil and is more convenient to use.

[0025] Furthermore, Figure 1 As shown, the ring gear 52 of this embodiment is rotatably connected to the inner wall of the collection box 1 via a sealed bearing. The transmission shaft 5 is rotatably connected to the dust shield 70 via a sealed bearing. The dust shield 70 and the ring gear 52 are coaxially arranged. The outer periphery of the transmission shaft 5 is fixedly connected to the inner wall of the reserved hole in the dust shield 70, and the dust shield 70 is fixedly connected to the ring gear 52. The dust shield 70 and the sealed bearing can block splashing soil, preventing the sampled soil from affecting the meshing of the planetary gear reducer, ensuring normal transmission and mixing.

[0026] Furthermore, Figure 1 As shown, the lower ends of the lower tube 7 and the sliding sleeve 8 of this embodiment are respectively provided with rounded corners 80, and the lower end of the transmission shaft 5 is pointed. The rounded corners 80 and the pointed lower end of the transmission shaft 5 make it easier to insert the lower tube 7, sliding sleeve 8, and transmission shaft 5 into the soil, reducing insertion resistance and making it more convenient to use.

[0027] Furthermore, Figure 1 As shown, in this embodiment, a knob 90 is fixedly installed on the threaded rod 32. Rotating the threaded rod 32 by the knob 90 is more convenient and labor-saving.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for collecting mixed samples of surface soil, comprising a sampling tube and a circular collecting box (1), handles (2) being fixedly mounted on both sides of the collecting box (1), a motor (3) being fixedly mounted on the collecting box (1), a spiral blade (4) being provided in the sampling tube, an output shaft of the motor (3) being fixedly connected to a transmission shaft (5), the spiral blade (4) being fixedly mounted on the transmission shaft (5), a threaded hole being provided on the collecting box (1), and a box cover (10) being threadedly mounted thereon, characterized in that: The sampling tube comprises an upper tube (6) and a lower tube (7), wherein the upper tube (6) and the lower tube (7) are fixedly connected together by a plurality of connecting rods (12); a sliding sleeve (8) is slidably mounted on the lower tube (7); a flange is provided on the sliding sleeve (8); a crushing plate (9) is fixedly mounted on the transmission shaft (5); and a blocking rod (11) is fixedly mounted inside the lower tube (7).

2. The device for collecting mixed samples of surface soil according to claim 1, characterized in that: A plurality of sliders (20) are fixedly mounted on the inner wall of the sliding sleeve (8), a plurality of slide grooves (21) are provided on the lower tube (7), the sliders (20) are slidably mounted in the corresponding slide grooves (21), and the sliders (20) are elastically connected to the inner wall of the slide groove (21) via a spring (22).

3. The device for collecting mixed samples of surface soil according to claim 1, characterized in that: A sleeve (30) is slidably mounted on the upper tube (6), a nut (31) is fixedly mounted on the sleeve (30), a threaded rod (32) is rotatably mounted on the upper tube (6), and the threaded rod (32) is threadedly matched with the nut (31).

4. The device for collecting mixed samples of surface soil according to claim 1, characterized in that: A plurality of U-shaped stirring rods (40) are installed in the collection box (1). The U-shaped stirring rods (40) are in transmission connection with the transmission shaft (5). The transmission shaft (5) can drive the U-shaped stirring rods (40) to revolve around the transmission shaft (5).

5. The device for collecting mixed samples of surface soil according to claim 4, characterized in that: The transmission shaft (5) is connected to a plurality of U-shaped stirring rods (40) through a planetary gear reducer. The planetary gear reducer includes a sun gear (50). The outer periphery of the sun gear (50) is meshed with a plurality of planetary gears (51). The planetary gears (51) are rotatably mounted in the collection box (1). One side of the planetary gears (51) is meshed with a same ring gear (52). The ring gear (52) is rotatably mounted in the collection box (1). The U-shaped stirring rods (40) are fixedly mounted on the ring gear (52).

6. The device for collecting mixed samples of surface soil according to claim 4, characterized in that: A vertical rod (60) is fixedly installed in the collection box (1).

7. The device for collecting mixed samples of surface soil according to claim 5, characterized in that: The gear ring (52) is rotatably connected to the inner wall of the collection box (1) via a sealed bearing, and the transmission shaft (5) is rotatably connected to the dustproof plate (70) via a sealed bearing, and the dustproof plate (70) is fixedly connected to the gear ring (52).

8. The device for collecting mixed samples of surface soil according to claim 1, characterized in that: The lower ends of the lower tube (7) and the sliding sleeve (8) are respectively provided with rounded corners (80), and the lower end of the transmission shaft (5) is a pointed end.

9. The device for collecting mixed samples of surface soil according to claim 3, characterized in that: A knob (90) is fixedly mounted on the threaded rod (32).

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