Sample selection device for natural resource engineering surveying and mapping

Abstract

The invention discloses a sample selection device for natural resource engineering surveying and mapping, and relates to the technical field of engineering surveying and mapping. The bottom plate is arranged at the lower end of the sampling pipe in a sleeving manner and is used for ensuring that the sampling pipe is always in a vertical state during sampling, and the depth-keeping sampling mechanism is arranged at the bottom of the movable groove and is used for sampling soil with the required depth. The tip end of the bottom of the sampling pipe is inserted into a soil sampling area firstly, the sampling pipe is rotated to vertically drill into soil, after the through groove is drilled into the soil needing to be sampled by a depth, a soil sample can be taken out more conveniently by utilizing the depth-keeping sampling mechanism, and meanwhile, depth-keeping sampling can be carried out on the soil needing to be sampled.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering surveying and mapping, and specifically to a sample selection device for natural resource engineering surveying and mapping. Background Technique

[0002] The scope of natural engineering is very broad, covering multiple different disciplines and professional fields. According to the provided information, the following categories of natural engineering can be summarized: national territorial space planning engineering, land engineering, forestry engineering, geological exploration engineering, surveying and mapping engineering, ocean engineering. Among them, surveying and mapping engineering covers specialties such as geodetic surveying, surveying and mapping aerial photography, photogrammetry and remote sensing, engineering surveying, real estate surveying and mapping, geographic information system engineering, map compilation, navigation electronic map production, and Internet map services. When conducting geological exploration engineering surveying, it is necessary to first select and detect soil samples at the survey location.

[0003] When selecting soil samples, a soil sampler needs to be vertically inserted into the sampling soil. At this time, the soil sample is located in the sampling tube of the sampler. The operator will carefully pull out the soil sampler from the soil and push out the soil sample in the sampling tube into the sampling container for proper preservation, so as to select and test soil samples at different depths.

[0004] In the prior art, when using a soil sampler to insert into the soil for sampling, when conducting depth detection, it is still necessary to take out all soil samples at different depths for sample selection. And if the detected soil depth is relatively deep, when pulling out the sampling tube, due to the increased depth, the weight of the soil in the tube increases, and the soil in the tube is likely to fall out of the tube after slowly pulling out the sampling tube, resulting in the failure of the sampling work and the need to re-sample.

[0005] In view of the above problems, there is an urgent need to innovate and design on the basis of the original sample selection device. Summary of the Invention

[0006] The technical solution of the present invention aims at the technical problem that the solution of the prior art is too single, and provides a solution significantly different from the prior art. Specifically, the purpose of the present invention is to provide a sample selection device for natural resource engineering surveying and mapping to solve the problem of inconvenient depth sampling proposed in the above background technique.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A sample selection device for natural resource engineering surveying and mapping, including a sampling tube and a movable groove vertically opened inside the sampling tube, and further including a bottom plate sleeved at the lower end of the sampling tube to ensure that the sampling tube is always in a vertical state during sampling, and a depth sampling mechanism arranged at the bottom of the movable groove for sampling soil at a required depth; The outer wall of the sampling tube is arranged in a spiral structure, and the bottom of the sampling tube is arranged in a conical structure, and the sampling tube is in threaded fit with the bottom plate.

[0008] Preferably, the depth-fixed sampling mechanism includes a sampling groove slidably fitted with the moving groove. A fixing rod extending to the top of the moving groove is fixed at the center of the sampling groove. A guiding seat slidably fitted with the fixing rod is arranged on the outer wall of the fixing rod. A sleeve sleeved on the outer wall of the fixing rod is fixed at the top of the guiding seat. A first elastic cord is fixedly connected between the guiding seat and the sampling groove.

[0009] Preferably, the depth-fixed sampling mechanism further includes a soil scraping structure arranged inside the sampling groove. A through groove corresponding to the soil scraping structure is formed in the inner wall of the moving groove. The through groove penetrates through the outer wall of the sampling tube. A shielding structure for shielding the through groove before sampling is arranged at the top of the sampling groove.

[0010] Preferably, handles are arranged on the outer walls of the fixing rod and the sleeve. A limiting block is fixed on the outer wall of the sampling groove, and a limiting groove slidably fitted with the limiting block is formed in the inner wall of the moving groove.

[0011] Preferably, the upper end of the outer wall of the guiding seat is arranged in an annular vertical structure, and the lower end of the outer wall of the guiding seat is arranged in an annular inclined structure.

[0012] Preferably, the soil scraping structure includes an annular cover fixed inside the sampling groove and located outside the guiding seat. Scrapers slidably fitted with the annular cover are arranged inside the annular cover at equal angles. Second elastic cords are fixedly connected between the bottom of each scraper and the outer wall of the annular cover.

[0013] Preferably, one end of each scraper extends to the upper end of the outer wall of the guiding seat, and the other end of each scraper extends to the upper inner side of the sampling groove. The scraper is fitted with the through groove, and the bottom of the through groove is located above the top of the sampling groove.

[0014] Preferably, the shielding structure includes an annular baffle slidably fitted with the moving groove and located at the top of the sampling groove. Connecting rods are fixedly connected between the inner wall of the annular baffle and the top of the guiding seat at equal angles.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) In the present invention, a sampling tube with a spiral outer wall and a depth - fixed sampling mechanism are provided. First, insert the tip at the bottom of the sampling tube into the soil sampling area, and rotate the sampling tube to vertically drill into the soil. After the through - slot drills into the soil depth where sampling is required, keep the fixed rod stationary, pull the sleeve to slide upward along the outer wall of the fixed rod, so that the through - slot originally blocked by the annular baffle is in an open state and the equally - angled inclined scraping plates slide towards the outside of the annular cover. The end parts of the scraping plates respectively pass through the through - slots and insert into the soil. In this state, lift the fixed rod upward, so that one end of the scraping plate scrapes upward after inserting into the soil. The compacted soil will fall after being scraped by the scraping plate, and the fallen soil will fall into the sampling slot through the scraping plate and the through - slot. At the same time, after sliding upward in the through - slot for a certain distance, release the pulled sleeve, and then the soil in the specified depth area collected in the sampling slot can be taken out, thus making it more convenient to take out the soil sample after collection. (2) In the present invention, a depth - fixed sampling mechanism is provided. When sampling, the depth of soil sampling is obtained by subtracting the vertical distance from the through - slot to the tip of the sampling tube from the depth at which the sampling tube is inserted into the soil. Using the depth - fixed sampling mechanism, soil sampling at a required depth can be carried out without taking out all soil samples at different depths and then selecting samples. Description of the Drawings

[0016] Figure 1 is a three - dimensional view of the present invention; Figure 2 is a plan view of the present invention; Figure 3 is a partial - sectional three - dimensional view of the present invention; Figure 4 is a partial - sectional three - dimensional view of the depth - fixed sampling mechanism of the present invention; Figure 5 is a first - perspective three - dimensional view of the depth - fixed sampling mechanism of the present invention after partial sectioning; Figure 6 is a second - perspective three - dimensional view of the depth - fixed sampling mechanism of the present invention after partial sectioning; Figure 7 is a third - perspective three - dimensional view of the depth - fixed sampling mechanism of the present invention after partial sectioning.

[0017] In the figure: 1, sampling tube; 2, bottom plate; 3, movable slot; 4, sampling slot; 5, fixed rod; 6, guide seat; 7, sleeve; 8, first elastic cord; 9, annular cover; 10, scraping plate; 11, second elastic cord; 12, annular baffle; 13, connecting rod; 14, limiting block; 15, limiting slot; 16, through - slot. Detailed Embodiments

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 to 7 , the present invention provides a technical solution: a sample selection device for natural resource engineering surveying and mapping, including a sampling tube 1 and a movable groove 3 vertically opened inside the sampling tube 1, and further including a bottom plate 2 sleeved at the lower end of the sampling tube 1 to ensure that the sampling tube 1 is always in a vertical state during sampling, and a depth-fixed sampling mechanism arranged at the bottom of the movable groove 3 for sampling soil at a required depth; The outer wall of the sampling tube 1 is provided with a spiral structure, and the bottom of the sampling tube 1 is provided with a conical structure, and the sampling tube 1 and the bottom plate 2 are threadedly matched.

[0020] It should be noted that during sampling, the tip at the bottom of the sampling tube 1 is first inserted into the soil sampling area, so that the bottom surface of the bottom plate 2 is laid flat on the soil surface. Before inserting the sampling tube 1, the vertical distance from the tip to the through groove 16 is measured first. At this time, the operator can step on the bottom plate 2 with both feet and rotate the sampling tube 1. Since the sampling tube 1 and the bottom plate 2 are threadedly connected, after stepping on the bottom plate 2, rotate the sampling tube 1 to make it vertically penetrate into the soil, and finally use the depth-fixed sampling mechanism to conveniently take out the soil at the required depth.

[0021] The depth-fixed sampling mechanism includes a sampling groove 4 slidably matched with the movable groove 3. A fixing rod 5 extending to the top of the movable groove 3 is fixed at the center of the sampling groove 4. A guiding seat 6 slidably matched with the fixing rod 5 is arranged on the outer wall of the fixing rod 5. A sleeve 7 sleeved on the outer wall of the fixing rod 5 is fixed at the top of the guiding seat 6. A first elastic rope 8 is fixedly connected between the guiding seat 6 and the sampling groove 4.

[0022] The depth-fixed sampling mechanism further includes a soil scraping structure arranged inside the sampling groove 4. A through groove 16 corresponding to the soil scraping structure is opened on the inner wall of the movable groove 3. The through groove 16 penetrates through the outer wall of the sampling tube 1. A shielding structure for shielding the through groove 16 before sampling is arranged at the top of the sampling groove 4.

[0023] It should be noted that during sampling, the fixing rod 5 is fixed, and the sleeve 7 is pulled to slide upward on the outer wall of the fixing rod 5. The sleeve 7 then pulls the guiding seat 6 to slide upward synchronously on the outer wall of the fixing rod 5. The sliding distance is the distance from the top of the sleeve 7 to the top of the fixing rod 5. At the same time, the guiding seat 6 pulls the first elastic rope 8 at the bottom to stretch. Under the action of the shielding structure, the through groove 16 is opened, and under the action of the soil scraping structure, the opened through groove 16 can be used for depth-fixed sampling.

[0024] Both the outer walls of the fixed rod 5 and the sleeve 7 are provided with handles. A limiting block 14 is fixed to the outer wall of the sampling groove 4, and a limiting groove 15 that slidably cooperates with the limiting block 14 is formed in the inner wall of the movable groove 3.

[0025] It should be noted that the limiting block 14 on the outer wall of the sampling groove 4 slides in the limiting groove 15. In order to conveniently limit the direction of the sampling groove 4 when it is taken out and inserted back into the movable groove 3, the scraper 10 is accurately positioned corresponding to the through groove 16.

[0026] The upper end of the outer wall of the guide seat 6 is arranged as an annular vertical structure, and the lower end of the outer wall of the guide seat 6 is arranged as an annular inclined structure.

[0027] It should be noted that the annular vertical structure at the upper end of the guide seat 6 is to prevent it from pushing the scraper 10 when it moves upward, and the annular inclined structure at the lower end of the guide seat 6 is to make it push the scraper 10 through the inclined plane when it moves upward, so that the guide seat 6 has a guiding effect when it moves upward.

[0028] The soil scraping structure includes an annular cover 9 fixed inside the sampling groove 4 and outside the guide seat 6. Scrapers 10 that are slidably engaged with the annular cover 9 are inclined at equal angles inside the annular cover 9. Second elastic ropes 11 are fixedly connected between the bottom of each scraper 10 and the outer wall of the annular cover 9.

[0029] One end of the scraper 10 extends to the upper end of the outer wall of the guide seat 6, and the other end of the scraper 10 extends to the upper inner side of the sampling groove 4. The scraper 10 fits with the through groove 16, and the bottom of the through groove 16 is located above the top of the sampling groove 4.

[0030] It should be noted that when the guide seat 6 continues to move upward, the annular inclined structure at the lower end makes the scrapers 10 that are inclined at equal angles slide toward the outside of the annular cover 9. The scrapers 10 pull the second elastic ropes 11 to stretch, and at the same time, the end portions of the scrapers 10 respectively pass through the through groove 16 and are inserted into the soil.

[0031] The shielding structure includes an annular baffle 12 that is slidably engaged with the movable groove 3 and located at the top of the sampling groove 4. Connecting rods 13 are fixedly connected at equal angles between the inner wall of the annular baffle 12 and the top of the guide seat 6.

[0032] It should be noted that in the initial state, the annular baffle 12 can cover the through groove 16 to prevent soil from falling into the sampling groove 4 through the through groove 16 during the process of the sampling pipe 1 drilling into the soil. The connecting rods 13 make the annular baffle 12 move synchronously while the guide seat 6 moves.

[0033] Working principle: First, insert the tip at the bottom of the sampling tube 1 into the soil sampling area, and lay the bottom surface of the bottom plate 2 flat on the soil surface. Before inserting the sampling tube 1, measure the vertical distance from the tip to the through slot 16. At this time, the operator can step on the bottom plate 2 with both feet and rotate the sampling tube 1. Since the sampling tube 1 and the bottom plate 2 are threadedly connected, after stepping on the bottom plate 2, rotate the sampling tube 1 to drill it vertically into the soil. The threaded structure on the outer wall of the sampling tube 1 facilitates the drilling of the sampling tube 1 into the soil. After the through slot 16 drills into the soil depth to be sampled, stop rotating the sampling tube 1.

[0034] Then, hold the handles at the upper ends of the fixing rod 5 and the sleeve 7 with both hands respectively, keep the fixing rod 5 stationary, and pull the sleeve 7 to slide upward on the outer wall of the fixing rod 5. The sleeve 7 then pulls the guide seat 6 to slide upward synchronously on the outer wall of the fixing rod 5. The upward sliding distance is the distance from the top of the sleeve 7 to the top of the fixing rod 5. At the same time, the guide seat 6 pulls the first elastic cord 8 at the bottom to stretch. The vertical distance at the upper end of the guide seat 6 moves along with the end of the scraping plate 10. At the same time, the guide seat 6 drives the annular baffle 12 to move upward through the connecting rod 13 at the top, so that the through slot 16 originally blocked by the annular baffle 12 is in an open state. When the guide seat 6 continues to move upward, the scraping plate 10 arranged at an equal angle and inclined slides toward the outside of the annular cover 9 through the annular inclined structure at the lower end, and the scraping plate 10 pulls the second elastic cord 11 to stretch. At the same time, the ends of the scraping plate 10 respectively pass through the through slot 16 and insert into the soil. Since the soil on the outer wall of the sampling tube 1 will be squeezed and compacted during the continuous drilling of the sampling tube 1, at this time, the fixing rod 5 can be lifted upward in the above state, so that one end of the scraping plate 10 scrapes upward after inserting into the soil. The compacted soil will fall off after being scraped by the scraping plate 10, and the fallen soil will fall into the sampling groove 4 through the scraping plate 10 and the through slot 16. At the same time, after sliding upward in the through slot 16 for a certain distance, release the pulled sleeve 7, and the guide seat 6 and the scraping plate 10 are both reset. At this time, the fixing rod 5 can be pulled continuously to make the sampling groove 4 slide upward in the movable groove 3 and taken out, and the soil in the specified depth area collected in the sampling groove 4 can be taken out.

[0035] Finally, during the above sampling process, the limiting block 14 on the outer wall of the sampling groove 4 slides in the limiting groove 15. In order to facilitate the direction of the sampling groove 4 when it is taken out and inserted back into the movable groove 3, make the positions of the scraping plate 10 and the through slot 16 correspond accurately, and during sampling, subtract the vertical distance from the through slot 16 to the tip of the sampling tube 1 from the depth of the sampling tube 1 inserted into the soil. Using this sampling method is more convenient and fast when taking out soil samples, and at the same time, the soil at the required depth can be sampled at a fixed depth.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sample selection device for natural resource engineering surveying and mapping, comprising a sampling tube (1) and a movable slot (3) vertically opened inside the sampling tube (1), characterized in that: It further includes a bottom plate (2) sleeved on the lower end of the sampling tube (1) to ensure that the sampling tube (1) is always in a vertical state during sampling, and a depth-fixed sampling mechanism arranged at the bottom of the movable groove (3) for sampling soil at a required depth; The outer wall of the sampling tube (1) is arranged in a spiral structure, and the bottom of the sampling tube (1) is arranged in a conical structure, and the sampling tube (1) and the bottom plate (2) are arranged in a threaded fit.

2. The sample selection device for natural resource engineering surveying and mapping according to claim 1, characterized in that: The depth-fixed sampling mechanism includes a sampling groove (4) slidably matched with the movable groove (3). A fixing rod (5) extending to the top of the movable groove (3) is fixed at the center of the sampling groove (4). A guide seat (6) slidably matched with the outer wall of the fixing rod (5) is arranged on the outer wall of the fixing rod (5). A sleeve (7) sleeved on the outer wall of the fixing rod (5) is fixed at the top of the guide seat (6). A first elastic cord (8) is fixedly connected between the guide seat (6) and the sampling groove (4).

3. The sample selection device for natural resource engineering surveying and mapping according to claim 1, characterized in that: The depth-fixed sampling mechanism further includes a soil scraping structure arranged inside the sampling groove (4). A through groove (16) corresponding to the soil scraping structure is formed in the inner wall of the movable groove (3). The through groove (16) penetrates through the outer wall of the sampling tube (1). A shielding structure for shielding the through groove (16) before sampling is arranged at the top of the sampling groove (4).

4. The sample selection device for natural resource engineering surveying and mapping according to claim 2, wherein: Handles are arranged on the outer walls of the fixing rod (5) and the sleeve (7). A limiting block (14) is fixed on the outer wall of the sampling groove (4), and a limiting groove (15) slidably matched with the limiting block (14) is formed in the inner wall of the movable groove (3).

5. The sample selection device for natural resource engineering surveying and mapping according to claim 2, characterized in that: The upper end of the outer wall of the guide seat (6) is arranged in an annular vertical structure, and the lower end of the outer wall of the guide seat (6) is arranged in an annular inclined structure.

6. The sample selection device for natural resource engineering surveying and mapping according to claim 3, characterized in that: The soil scraping structure includes an annular cover (9) fixed inside the sampling groove (4) and located outside the guide seat (6). Scrapers (10) slidably matched with the annular cover (9) are arranged inside the annular cover (9) at equal angles. Second elastic cords (11) are fixedly connected between the bottoms of the scrapers (10) and the outer wall of the annular cover (9).

7. The sample selection device for natural resource engineering surveying and mapping according to claim 6, characterized in that: One end of the scraper (10) extends to the upper end of the outer wall of the guide seat (6), and the other end of the scraper (10) extends to the inner side of the upper end of the sampling groove (4). The scraper (10) is fitted with the through groove (16), and the bottom of the through groove (16) is located above the top of the sampling groove (4).

8. The sample selection device for natural resource engineering surveying and mapping according to claim 3, characterized in that: The shielding structure includes an annular baffle (12) slidably matched with the movable groove (3) and located at the top of the sampling groove (4). Connecting rods (13) are fixedly connected at equal angles between the inner wall of the annular baffle (12) and the top of the guide seat (6).

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