A black soil surface substrate depth measuring device

Abstract

The application discloses a black soil surface matrix depth measuring device and relates to the technical field of land detection. The device comprises a mounting box, a servo motor fixedly arranged in the mounting box, a drill rod fixedly connected with an output shaft of the servo motor, a laser ranging sensor fixedly arranged at the bottom of the mounting box, a single-chip microcomputer arranged in the mounting box and matched with the laser ranging sensor, two groups of ranging guide mechanisms arranged at the bottom of the mounting box and a limiting ring arranged between the two groups of ranging guide mechanisms and used for limiting the drill rod. The device can ensure the accuracy of the drilling depth detection of the surface matrix through double detection, and can sample and detect the matrix at different depths after drilling, thereby avoiding the situation that the sampling and detection result is not accurate due to the mixing of the matrix at different depths.

Description

Technical Field

[0001] This invention relates to the field of land testing technology, and in particular to a device for measuring the depth of surface matrix in black soil. Background Technology

[0002] Black soil is an upgrade of existing red soil; users can upgrade it after reaching level 40. It is not necessary to unlock all the red soil, but each piece of black soil must be upgraded on red soil. The effects of black soil and crops are significantly different from those of ordinary soil and red soil.

[0003] A search revealed a utility model patent in China with patent number CN216283186U, which discloses a depth measurement device for rock and soil geological exploration. The device includes a housing, a measurement buffer mechanism, and a depth measurement mechanism. The depth measurement mechanism includes a drive unit; the drive unit is electrically connected to an external power source, and a drill bit is installed at its power output end. The housing is equipped with a display screen, a microcontroller, and a laser rangefinder sensor. The measurement buffer mechanism includes a fixed cylinder and a buffer rod; a spring is installed inside the fixed cylinder; a scale bar is also provided on the fixed cylinder; the upper end of the buffer rod extends movably into the fixed cylinder and is matched and connected to the lower end of the spring; a rubber ring is installed at the lower end of the buffer rod; the tail of the drill bit is connected to the power output end of the drive unit, and the head of the drill bit passes through the rubber ring and extends downwards from the rubber ring.

[0004] Compared with existing technologies, the utility model patent with Chinese patent number CN216283186U has a simple and reasonable structural design, high measurement accuracy, flexible measurement methods, good evaluation precision, and advantages such as buffering effect and low noise.

[0005] Although the above-mentioned device can measure the current drilling distance using a laser rangefinder, it cannot sample and test the matrix at different drilling depths during actual use. Therefore, it is necessary to design a black soil surface matrix depth measurement device. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for measuring the depth of surface matrix in black soil.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A black soil surface matrix depth measurement device includes a mounting box, a servo motor is fixedly installed inside the mounting box, and a drill rod is fixedly connected to the output shaft of the servo motor. The drill rod passes through the bottom end of the mounting box and extends to the outside of the mounting box. A laser range sensor is fixedly installed at the bottom end of the mounting box, and a microcontroller that works with the laser range sensor is installed inside the mounting box.

[0009] The bottom of the mounting box is equipped with two sets of ranging guide mechanisms, and a limiting ring for limiting the drill rod is installed between the two sets of ranging guide mechanisms.

[0010] The drill rod has a storage cavity inside, and the drill rod has multiple feed ports arranged in a ring array that communicate with the internal storage cavity. A soil scraper is rotatably installed at the feed port, and the drill rod has an adjustment mechanism that cooperates with the soil scraper.

[0011] The above technical solution further includes:

[0012] The mounting box has symmetrically distributed handles fixedly installed on both sides, and the handles are provided with anti-slip rubber sleeves.

[0013] The ranging guide mechanism includes two sets of guide sleeves fixedly installed at the bottom of the mounting box. A guide movable rod is slidably installed inside the guide sleeve. The guide movable rod is L-shaped, and the horizontal end of the guide movable rod extends to the outside of the guide sleeve and is fixedly connected to the limiting ring.

[0014] The ranging guide mechanism also includes an indicator needle and a scale line set along the height direction of the guide sleeve. A long strip-shaped slot is opened on one side of the guide sleeve along its height direction, and a diamond-shaped indicator needle is fixedly connected to the side of the guide movable rod near the long strip-shaped slot through a cylindrical connector. The indicator needle is located outside the guide sleeve.

[0015] The bottom end of the drill rod is provided with a material intake port, and a plugging screw is installed at the material intake port. A drill bit for drilling measurement is fixedly installed at the bottom end of the plugging screw.

[0016] The adjustment mechanism includes a drive disk located inside the drill pipe storage cavity. Connecting rods arranged in a ring array are fixedly connected to the circumferential sidewall of the drive disk. The ends of the connecting rods extend to the outside of the drill pipe and are fixedly connected to a drive ring. Adjusting rods arranged in a ring array are fixedly connected to the circumferential outer wall of the drive ring. The drill pipe has an adjustment slot for the connecting rods to move.

[0017] A drive rod is slidably mounted on the bottom end of the drive disc, and the cross section of the drive rod at the connection position with the drive disc is quincunx-shaped. A driven disc is fixedly connected to the bottom end of the drive rod, and a hinge rod is installed between the circumferential sidewall of the driven disc and each soil scraper.

[0018] The adjustment mechanism also includes a positioning ring fixedly installed on the outer wall of the drill pipe and a plurality of fixing plates fixedly installed on the outer wall of the drill pipe in a ring array. The positioning ring is located above the drive ring, and the positioning ring and the drive ring are provided with staggered positioning teeth on the side that are close to each other. A reset spring column is fixedly connected to the top of the fixing plate, and the top of the reset spring column is in sliding contact with the drive ring.

[0019] The bottom end of the drive ring is provided with a limiting groove that matches the size of the reset spring post.

[0020] The present invention has the following beneficial effects:

[0021] 1. In this invention, by sliding the guide rod at the bottom of the mounting box and the indicator needle on the guide sleeve rod, and in cooperation with the laser rangefinder, the drilling depth can be detected through dual cooperation, thereby improving the accuracy of the measurement.

[0022] 2. In this invention, by setting two sets of distance measuring and guiding mechanisms, the device can be kept stable during the drilling measurement process, avoiding the situation where the depth measurement is not accurate due to the overall tilt of the device.

[0023] 3. In this invention, by cooperating with the soil scraper on the drill rod, the matrix at different locations can be sampled after drilling, and the sampled matrix can be relatively sealed and stored after sampling to avoid the mixing of sampled matrix, which would lead to inaccurate subsequent matrix test results. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a black soil surface matrix depth measuring device proposed in this invention;

[0025] Figure 2 This is a bottom view of a black soil surface matrix depth measuring device proposed in this invention;

[0026] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 4 This is a cross-sectional view of a black soil surface matrix depth measuring device proposed in this invention;

[0028] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B;

[0029] Figure 6 This is a partial structural schematic diagram of the adjustment mechanism in this invention;

[0030] Figure 7This is a schematic diagram of the ranging and guiding mechanism in this invention.

[0031] In the diagram: 1. Mounting box; 101. Servo motor; 2. Distance measuring guide mechanism; 201. Guide sleeve rod; 202. Guide movable rod; 203. Indicator needle; 3. Limiting ring; 4. Drill rod; 401. Blocking screw; 402. Drill bit; 5. Handle; 6. Laser distance measuring sensor; 7. Soil scraper; 8. Adjustment mechanism; 801. Drive ring; 802. Adjusting rod; 803. Limiting groove; 804. Reset spring column; 805. Fixing plate; 806. Adjusting slot; 807. Drive disc; 808. Connecting rod; 809. Positioning ring; 8010. Drive rod; 8011. Driven disc; 8012. Hinge rod. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, the present invention proposes a black soil surface matrix depth measurement device, including a mounting box 1. Handles 5 are symmetrically distributed on both sides of the mounting box 1, and anti-slip rubber sleeves are provided on the handles 5. A servo motor 101 is fixedly installed inside the mounting box 1, and a drill rod 4 is fixedly connected to the output shaft of the servo motor 101. The drill rod 4 passes through the bottom end of the mounting box 1 and extends to the outside of the mounting box 1. A laser rangefinder 6 is fixedly installed at the bottom end of the mounting box 1, and a microcontroller that cooperates with the laser rangefinder 6 is located inside the mounting box 1.

[0035] like Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, two sets of ranging guide mechanisms 2 are installed at the bottom of the mounting box 1. The ranging guide mechanism 2 includes two sets of guide sleeve rods 201 fixedly installed at the bottom of the mounting box 1. A guide movable rod 202 is slidably installed inside the guide sleeve rod 201. The guide movable rod 202 is L-shaped, and the end of the guide movable rod 202 with a horizontal section extends to the outside of the guide sleeve rod 201 and is fixedly connected to the limiting ring 3. A limiting ring 3 for limiting the drill rod 4 is installed between the two sets of ranging guide mechanisms 2.

[0036] The ranging guide mechanism also includes an indicator needle 203 and a scale line set along the height direction of the guide sleeve rod 201. A long strip-shaped slot is opened on one side of the guide sleeve rod 201 along its height direction, and a diamond-shaped indicator needle 203 is fixedly connected to the side of the guide movable rod 202 near the long strip-shaped slot through a cylindrical connector. The indicator needle 203 is located outside the guide sleeve rod 201.

[0037] In this embodiment, when measuring the depth of the black soil surface matrix, the inspector grips the entire device with handle 5 and drives the drill rod 4 to rotate via servo motor 101, thus enabling the drill rod 4 to drill into the surface matrix. During drilling, the drilling depth is measured by laser range sensor 6, and the range guide mechanism 2 ensures that the drill rod 4 drills perpendicularly to the matrix surface, guaranteeing the accuracy of the drilling depth measurement. Simultaneously, the sliding of guide rod 202 within guide sleeve 201 moves indicator needle 203, and the distance the indicator needle 203 moves further measures the drilling depth. This dual measurement ensures the accuracy of the surface matrix depth measurement.

[0038] Example 2

[0039] like Figures 3-6 As shown, based on Embodiment 1, it is possible to sample and test the matrix at different depths after the drill rod is drilled, and it can be ensured that the sampled matrix will not be mixed, which would lead to inaccurate test results. Specifically, the drill rod 4 has a storage cavity inside, and the rod body of the drill rod 4 has multiple feed ports arranged in a ring array and communicating with the internal storage cavity. A soil scraper 7 is rotatably installed at the feed port, and the drill rod 4 is provided with an adjustment mechanism 8 that cooperates with the soil scraper 7. The adjustment mechanism 8 includes a drive disk 807 located inside the storage cavity of the drill rod 4. A connecting rod 808 arranged in a ring array is fixedly connected to the circumferential side wall of the drive disk 807, and the end of the connecting rod 808 extends to the outside of the drill rod 4 and is fixedly connected to a drive ring 801. An adjustment rod 802 arranged in a ring array is fixedly connected to the outer circumferential wall of the drive ring 801. The rod body of the drill rod 4 has an adjustment slot 806 for the connecting rod 808 to move.

[0040] A drive rod 8010 is slidably mounted on the bottom end of the drive disc 807, and the cross section of the drive rod 8010 at the connection position with the drive disc 807 is shaped like a plum blossom. A driven disc 8011 is fixedly connected to the bottom end of the drive rod 8010, and a hinge rod 8012 is installed between the circumferential side wall of the driven disc 8011 and each soil scraper 7.

[0041] The bottom end of the drill rod 4 is provided with a material inlet, and a plugging screw 401 is installed at the material inlet. A drill bit 402 for drilling measurement is fixedly installed at the bottom end of the plugging screw 401.

[0042] In this embodiment, before sampling and testing the matrix at different depths, the soil scraper 7 is tightly fitted to the feed inlet of the drill rod 4 to ensure that the matrix cannot enter the storage cavity inside the drill rod 4. When it is necessary to sample and test the matrix at different depths, the adjustment rod 802 first drives the drive ring 801, the connecting rod 808 and the drive disk 807 to move as a whole. The drive disk 807 drives the drive rod 8010 to rotate, and the drive rod 8010 drives the driven disk 8011 to rotate. The driven disk 8011 then pushes the soil scraper 7 through the hinge rod 8012, causing the soil scraper 7 to rotate. The feed inlet on the drill rod 4 opens, and then the servo motor 101 drives the drill rod 4 to rotate, which in turn drives the soil scraper 7 to rotate. The slightly unfolded soil scraper 7 scrapes the matrix at that depth and enters the storage cavity through the feed inlet.

[0043] After sampling is completed, rotate the adjusting rod 802 in the opposite direction to close the soil scraper 7 and the feed inlet. Then, pull the drill rod 4 out from the surface substrate. Then, remove the drill bit 402 and the plugging screw 401 as a whole. Finally, take out the substrate inside the storage cavity for testing.

[0044] Example 3

[0045] like Figure 3 and Figure 4 As shown, based on Embodiments 1 and 2, after adjusting the state of the soil scraper 7, in order to ensure its stability during soil sampling, the adjusted soil scraper can be kept stable. Specifically, the adjustment mechanism 8 also includes a positioning ring 809 fixedly installed on the outer wall of the drill rod 4 and multiple fixing plates 805 fixedly installed on the outer wall of the drill rod 4 in a ring array. The positioning ring 809 is located above the drive ring 801, and the positioning ring 809 and the drive ring 801 are provided with staggered positioning teeth on the side that are close to each other. The top of the fixing plate 805 is fixedly connected to a reset spring post 804, and the top of the reset spring post 804 slides in contact with the drive ring 801. The bottom end of the drive ring 801 is provided with a limiting groove 803 that matches the size of the reset spring post 804.

[0046] In this embodiment, when adjusting the state of the soil scraper 7, the driving ring 801 can be moved downward by the adjusting rod 802, so that the positioning teeth on the driving ring 801 separate from the positioning teeth on the positioning ring 809. At the same time, the driving ring 801 squeezes the reset spring column 804. Then, the driving ring 801, the connecting rod 808, and the driving disk 807 are rotated by the adjusting rod 802. The operation method is as described in Embodiment 2 above. This can complete the adjustment of the state of the soil scraper 7. After the adjustment is completed, the adjusting rod 802 is released. At this time, the reset spring column 804 will push the driving ring 801 in the opposite direction, so that the positioning teeth on the driving ring 801 and the positioning teeth on the positioning ring 809 are misaligned and engaged again, ensuring the stability of the driving ring 801, which can ensure the stability of the soil scraper 7 after the state is adjusted.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the depth of surface matrix in black soil, comprising a mounting box (1), wherein a servo motor (101) is fixedly installed inside the mounting box (1), and a drill rod (4) is fixedly connected to the output shaft of the servo motor (101), the drill rod (4) penetrating the bottom end of the mounting box (1) and extending tangentially to the outside of the mounting box (1), characterized in that, The bottom of the mounting box (1) is fixedly equipped with a laser range sensor (6) and the inside of the mounting box (1) is equipped with a microcontroller that works with the laser range sensor (6). Two sets of ranging guide mechanisms (2) are installed at the bottom of the mounting box (1), and a limiting ring (3) for limiting the drill rod (4) is installed between the two sets of ranging guide mechanisms (2). The drill rod (4) has a storage cavity inside, and the drill rod (4) has multiple feed ports arranged in a ring array and connected to the internal storage cavity. A soil scraper (7) is rotatably installed at the feed port, and the drill rod (4) has an adjustment mechanism (8) that cooperates with the soil scraper (7). The ranging guide mechanism (2) includes two sets of guide sleeve rods (201) fixedly installed at the bottom of the mounting box (1). A guide movable rod (202) is slidably installed inside the guide sleeve rod (201). The guide movable rod (202) is L-shaped, and the end of the horizontal section of the guide movable rod (202) extends to the outside of the guide sleeve rod (201) and is fixedly connected to the limiting ring (3). The ranging guide mechanism also includes an indicator needle (203) and a scale line set along the height direction of the guide sleeve (201). A long strip-shaped slot is opened on one side of the guide sleeve (201) along its height direction, and a diamond-shaped indicator needle (203) is fixedly connected to the side of the guide movable rod (202) near the long strip-shaped slot through a cylindrical connector. The indicator needle (203) is located outside the guide sleeve (201). The adjustment mechanism (8) includes a drive disk (807) located inside the storage cavity of the drill rod (4). The circumferential sidewall of the drive disk (807) is fixedly connected to a connecting rod (808) arranged in a ring array. The end of the connecting rod (808) extends to the outside of the drill rod (4) and is fixedly connected to a drive ring (801). The outer circumferential wall of the drive ring (801) is fixedly connected to an adjustment rod (802) arranged in a ring array. The drill rod (4) has an adjustment slot (806) for the connecting rod (808) to move. A drive rod (8010) is slidably installed at the bottom end of the drive disc (807), and the cross section of the drive rod (8010) and the drive disc (807) is shaped like a plum blossom. A driven disc (8011) is fixedly connected to the bottom end of the drive rod (8010), and a hinge rod (8012) is installed between the circumferential sidewall of the driven disc (8011) and each soil scraper (7). The adjustment mechanism (8) further includes a positioning ring (809) fixedly installed on the outer wall of the drill rod (4) and a plurality of fixing plates (805) fixedly installed on the outer wall of the drill rod (4) in a ring array. The positioning ring (809) is located above the drive ring (801), and the positioning ring (809) and the drive ring (801) are provided with staggered positioning teeth on the side that are close to each other. The top of the fixing plate (805) is fixedly connected to a reset spring column (804), and the top of the reset spring column (804) slides in contact with the drive ring (801).

2. The black soil surface matrix depth measuring device according to claim 1, characterized in that, The mounting box (1) is fixedly installed with symmetrically distributed handles (5) on both sides, and the handles (5) are provided with anti-slip rubber sleeves.

3. The black soil surface matrix depth measuring device according to claim 1, characterized in that, The bottom end of the drill rod (4) is provided with a material inlet, and a plugging screw (401) is installed at the material inlet. A drill bit (402) for drilling measurement is fixedly installed at the bottom end of the plugging screw (401).

4. The black soil surface matrix depth measuring device according to claim 1, characterized in that, The bottom end of the drive ring (801) is provided with a limiting groove (803) that matches the size of the reset spring post (804).

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