Layered sampling device for soil heap

Abstract

The utility model discloses a stratified sampling device for a soil pile. The stratified sampling device comprises a base, a drilling driving assembly, a depth control assembly, a drill bit assembly and a sampling cavity, the depth control assembly comprises a vertical rack rod, an inclined supporting rod, a hand-cranking adjusting unit and a lower limiting disc. The drilling driving assembly is arranged on the hand-cranking adjusting unit; the drill bit assembly comprises a soil auger stem and a plurality of extension rods. The stratified sampling device suitable for the soil heap can meet the requirement of soil heap sampling for depth, depth control is achieved through the hand-cranking adjusting unit, the stratified sampling device has the advantages of being simple in structure, light in weight and the like, sampling of soil at the preset depth can be achieved on a sampling device and a sampling cavity type sampling device, and the sampling efficiency is improved. And the influence and interference on the soil of the sampling soil layer can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling equipment technology, specifically to a device for stratified sampling of soil piles. Background Technology

[0002] In soil pollution investigation and remediation, stratified sampling is generally required to understand the distribution of pollution at different levels of the soil, which helps monitor and assess the degree and distribution of soil pollution. Currently, most sampling equipment is manual or electric. To reduce on-site labor intensity and improve the accuracy of sampling depth, many technologies have been explored, such as the stratified sampling drill disclosed in invention patent CN117307025B, which uses a screw-nut structure for depth control. However, this equipment has certain problems in soil mound sampling. Soil mounds are structures formed by artificial dumping or other reasons. Soil mounds are generally soft but deep, requiring deeper sampling than ordinary sampling. The screw-nut structure often cannot meet the sampling depth requirements. Furthermore, the added motor and other components for depth control increase the overall weight of the sampling device, making it inconvenient to transport the top of the mound on-site. Utility Model Content

[0003] The purpose of this invention is to provide a soil stratification sampling device to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides a soil pile stratification sampling device, comprising a base, a drilling drive assembly, a depth control assembly, a drill bit assembly, and a sampling chamber; the depth control assembly includes a vertical rack, an inclined support rod, a hand-cranked adjustment unit, and a lower limit plate; the vertical rack is vertically fixed on the base, the inclined support rod is inclined and connected at one end to the top of the vertical rack and at the other end to the base plate, the lower limit plate is fixedly disposed at the lower part of the vertical rack, and the drilling drive assembly is disposed on the hand-cranked adjustment unit; the drill bit assembly includes a soil auger drill rod and several extension rods.

[0005] Furthermore, the base is characterized in that it includes a base plate, an extension fixing plate, an upper plate, and lateral support rods; the base plate and the upper plate are disc-shaped, with a through hole in the center and the axes of the through holes coincide; the upper plate is set at a predetermined distance above the base plate by a plurality of lateral support rods; a plurality of extension fixing plates are slidably set on the upper part of the base plate, and a plurality of guide limiting rings are fixed on the upper part of the base plate; the extension fixing plates pass through the guide limiting rings and form a cavity with the base plate; a limiting protrusion is provided on the side near the center of the base plate; and a fixing nail is provided at the other end of the extension fixing plate.

[0006] Furthermore, a through hole is provided at the other end of the extension fixing plate, through which the fixing nail passes. A foot plate is provided at the top and a nail head is provided at the bottom. The foot plate is disc-shaped and the nail head is triangular plate-shaped, with a size larger than the inner diameter of the through hole of the extension fixing plate. A handle is provided at the top of the upper plate.

[0007] Furthermore, the hand-cranked adjustment unit includes a sliding part, a meshing gear set, and a hand crank arm. The sliding part includes a sliding sleeve, a meshing gear set receiving cavity, and a drilling drive component fixing plate. The sliding sleeve is sleeved on the outside of the vertical rack rod. The meshing gear set receiving cavity is located at the upper or lower part of the sliding sleeve. The drilling drive component fixing plate is located at the lower or upper part of the sliding sleeve and is used to fix the drilling drive component.

[0008] Furthermore, the drilling drive assembly includes a drive motor and a reducer.

[0009] Furthermore, a pipe wrench is provided on the upper part of the upper plate, and an upper guide limiting ring is fixed on the upper part of the upper plate. The pipe wrench passes through the upper guide limiting ring and forms a cavity with the upper plate. A gripping rod perpendicular to the caliper is provided on the side away from the center of the upper plate.

[0010] Furthermore, the sampling cavity includes an upper connecting part, a receiving cavity, and a drilling tooth part. The upper connecting part is detachably connected to the output shaft of the reducer. The receiving cavity is a cylindrical tube with a window on its side wall and a cavity cover at the window. The cavity cover is detachably installed at the window by bolts. The drilling tooth part is located at the bottom of the receiving cavity and includes an array of protruding teeth.

[0011] This invention provides a stratified sampling device suitable for soil piles, which can meet the depth requirements of soil pile sampling. The depth control is achieved through a hand-cranked adjustment unit, which has the advantages of simple structure and light weight. The sampler is a sampling chamber type sampler, which can achieve sampling of soil at a predetermined depth, and can reduce the impact and interference on the sampled soil layer. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0013] Figure 2 This is a lower enlarged schematic diagram of the overall design of this utility model.

[0014] Figure 3 This is a schematic diagram of the practical drill bit assembly and sampling chamber. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] As attached Figure 1-3 As shown, the present invention relates to a soil pile stratification sampling device, which includes a base 1, a drilling drive assembly 2, a depth control assembly 3, a drill bit assembly 4, and a sampling chamber 5.

[0017] The base 1 includes a base plate 11, an extension fixing plate 12, an upper plate 13, and lateral support rods 14. The base plate 11 and the upper plate 13 are disc-shaped, with a through hole in the center and the axes of the through holes coincide. The upper plate 13 is set at a predetermined distance above the base plate 11 by a number of lateral support rods 14.

[0018] Several extension fixing plates 12 are slidably disposed on the upper part of the base plate 11. Specifically, several guide limiting rings 111 are fixed on the upper part of the base plate 11. The extension fixing plates 12 pass through the guide limiting rings 111 and form a cavity with the base plate. A limiting protrusion 121 is provided on the side near the center of the base plate 11. The size of the limiting protrusion 121 is larger than the size of the cavity formed by the guide limiting rings 111 and the base plate. A fixing nail 122 is provided at the other end of the extension fixing plate 12. Specifically, a through hole is provided at the other end of the extension fixing plate 12, and the fixing nail 122 passes through the through hole. A foot plate 1221 is provided at the top and a foot plate 1221 is provided at the bottom. The nail head 1222 and the foot plate 122 are disc-shaped with a diameter larger than the inner diameter of the through hole of the extension fixing plate 12. The nail head 1222 is triangular plate-shaped with a side length parallel to the base plate 11 that is larger than the inner diameter of the through hole of the extension fixing plate 12. This allows the fixing nail 122 to be limited at the through hole of the extension fixing plate 12 and does not need to be stored separately. When in use, the extension fixing plate 12 is pulled out to the preset position, and the fixing nail 122 is fixed to the soil surface by stepping on the foot plate 1221. After use, the fixing nail 122 is pulled out by a pry bar or other tools. The use of the extension fixing plate 12 and the fixing nail 122 can improve the stability of the device during sampling.

[0019] A handle 131 is provided on the upper part of the upper plate 13.

[0020] The depth control component 3 includes a vertical rack and pinion 31, an inclined support rod 32, a hand-cranked adjustment unit 33, and a lower limit plate 34.

[0021] The vertical rack 31 is vertically fixed on the base 1. The inclined support rod 32 is arranged at an angle, with one end connected to the top of the vertical rack 31 and the other end connected to the base plate 11 to support the vertical rack 31. The lower limit plate 34 is fixedly installed on the vertical rack 31 to limit the downward extreme position of the hand-cranked adjustment unit 33.

[0022] The hand-cranked adjustment unit 33 includes a sliding part 331, a meshing gear set (not shown in the figure), and a hand crank arm 332. The sliding part 331 includes a sliding sleeve 3310, a meshing gear set receiving cavity 3311, and a drilling drive component fixing plate 3312. The sliding sleeve 3310 is sleeved on the outside of the vertical rack rod 31. The meshing gear set receiving cavity 3311 is located at the upper or lower part of the sliding sleeve 3310 to accommodate the meshing gear set. The drilling drive component fixing plate 3312 is located at the lower or upper part of the sliding sleeve 3310 and is used to fix the drilling drive component 2.

[0023] The hand crank arm 332 cooperates with the meshing gear set. By cranking, the meshing gear is driven to rotate, so that the hand crank adjustment unit 33 can move up and down on the vertical rack 31. The specific structure of the meshing gear is conventional knowledge in the field. It generally includes a gear that meshes with the rack on the vertical rack 31, and a releaseable ratchet structure that locks the position.

[0024] The drilling drive assembly 2 includes a drive motor 21 and a reducer 23. The drive motor 21 can be a lithium battery-powered flashlight, which is easy to maintain and is relatively lightweight. The reducer 23 is used to adjust the output of the drive motor. The output shaft of the reducer 23 is detachably connected to the drill rod of the drill bit assembly 4.

[0025] The drill bit assembly 4 includes a soil extraction auger (not shown in the figure) and several extension rods 41. The soil extraction auger is a drill rod with a threaded structure on the outside, and existing products can be selected. The extension rods 41 are used to connect the drilling drive assembly 2 and the soil auger rotor or sampling chamber 5.

[0026] A pipe wrench 24 is provided on the upper part of the upper plate 13 for separating the output shaft of the reducer 23 from the auger drill rod or extension rod 41. Specifically, an upper guide limiting ring 131 is fixed on the upper part of the upper plate 13. The pipe wrench 24 passes through the upper guide limiting ring 131 and forms a cavity with the upper plate 13. A gripping rod 241 perpendicular to the caliper is provided on the side away from the center of the upper plate 13. The height of the gripping rod 241 is greater than the height of the upper guide limiting ring 131, which can limit the movement of the pipe wrench 24. Under the action of the upper guide limiting ring 131, the success rate of the pipe wrench 24 being in place in one go can be effectively improved. In addition, the pipe wrench 24 can be effectively stored for easy on-site deployment.

[0027] The top of the extension rod 41 is provided with an upper connecting part that mates with the output shaft of the reducer 23 or the lower connecting part of other extension rods 41. The upper and lower connecting parts are a common structure in the field of drill pipe connection.

[0028] As attached Figure 3 As shown, the sampling chamber 5 includes an upper connecting part 51, a receiving chamber 52, and a drilling tooth part 53. The upper connecting part 51 is detachably connected to the output shaft of the reducer 23 and other extension rods 41. The receiving chamber 52 is a cylindrical tube with a window 521 on its side wall and a chamber cover 522 at the window. The chamber cover 522 is detachably installed at the window 521 by bolts.

[0029] More specifically, an inner ring 523 is provided on the upper part of the receiving cavity 52, the bottom of the inner ring 523 is located inside the window 521, a groove is provided on the outer side of the receiving cavity 52 below the window 521, and a protrusion is provided at the corresponding position of the cavity cover 522. The cavity cover 522 is fixed to the inner ring 523 and the groove by bolts. The upper inner ring 523 can improve the overall strength of the receiving cavity 52.

[0030] The drilling tooth section 53 is located at the bottom of the receiving cavity 52 and includes an array of protruding teeth for drilling downwards.

[0031] This method is suitable for first drilling to a preset depth using a soil-exiting auger rod, which is generally 10-20cm above the sampling depth. Then, the soil-exiting auger rod is replaced with sampling chamber 5, and sampling chamber 5 is drilled down to the preset depth, which is generally 10-20cm below the sampling position. After that, sampling chamber 5 is retrieved, and the soil located in the middle of the receiving chamber 52 is the soil sample at the preset depth.

[0032] In terms of depth control, the depth of each drilling session can be determined by the hand-cranked adjustment unit 33 and the markings set on the vertical rack rod 31, and the drilling depth can be increased by adding an extension rod 41.

[0033] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A device for stratified sampling of soil piles, characterized in that, The utility model provides a kind of soil sampling device, including base, drilling drive assembly, depth control assembly, drill bit assembly, sampling cavity;The depth control assembly includes vertical rack rod, oblique support rod, hand-operated adjusting unit, lower limit disc;The vertical rack rod is vertically fixed on the base, the oblique support rod is arranged obliquely, one end is connected with the top of vertical rack rod, the other end is connected to the bottom plate, the lower limit disc is fixedly arranged in the lower part of vertical rack rod, and the drilling drive assembly is arranged on the hand-operated adjusting unit;The drill bit assembly includes soil auger rod and a plurality of extension rods;The base includes bottom plate, extension fixed plate, upper plate and lateral support rod;The bottom plate and the upper plate are disc-shaped, with a through hole in the center, and the through hole axes coincide, and the upper plate is arranged on the upper part of the bottom plate at a preset distance by a plurality of lateral support rods;A plurality of extension fixed plates are slidably arranged on the upper part of the bottom plate, a plurality of guide limit rings are fixed on the upper part of the bottom plate, the extension fixed plate passes through the guide limit ring to form a cavity with the bottom plate, a limit protrusion is arranged on the side close to the center of the bottom plate, and a fixing nail is arranged on the other end of the extension fixed plate.

2. The device for stratified sampling of soil heaps according to claim 1, characterized in that, A through hole is arranged on the other end of the extension fixed plate, the fixing nail passes through the through hole, the upper part is provided with a treadle, and the bottom is provided with a nail head, the treadle is disc-shaped, the nail head is triangular plate-shaped, and the size is larger than the inner diameter of the through hole of the extension fixed plate;A handle is arranged on the upper part of the upper plate.

3. The device for stratified sampling of soil piles according to claim 1, characterized in that, The hand-operated adjusting unit includes sliding part, meshing gear set and hand-operated arm, the sliding part includes sliding sleeve, meshing gear set accommodating cavity and drilling drive assembly fixing plate, the sliding sleeve is sleeved outside the vertical rack rod, the meshing gear set accommodating cavity is arranged on the upper part or lower part of the sliding sleeve, and the drilling drive assembly fixing plate is arranged on the lower part or upper part of the sliding sleeve to fixedly arrange the drilling drive assembly.

4. A device for stratified sampling of soil heaps according to claim 3, characterized in that, The drilling drive assembly includes driving motor and speed reducer.

5. A device for stratified sampling of soil heaps according to claim 4, characterized in that, A pipe wrench is arranged on the upper part of the upper plate, an upper guide limit ring is fixed on the upper part of the upper plate, the pipe wrench passes through the upper guide limit ring to form a cavity with the upper plate, and a holding rod perpendicular to the clamp is arranged on the side away from the center of the upper plate.

6. The device for stratified sampling of soil piles according to claim 4, characterized in that, The sampling cavity includes upper connecting part, accommodating cavity and drilling tooth part, the upper connecting part is detachably matched with the output shaft of the speed reducer, the accommodating cavity is cylindrical pipe material, the side wall is provided with window, the window is provided with cavity cover, the cavity cover is detachably arranged at the window by bolt, and the drilling tooth part is arranged at the bottom of the accommodating cavity and includes arrayed protruding teeth.

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