Highway construction soil multilayer sampling device

Abstract

The invention relates to the field of highway construction sampling devices, and discloses a highway construction soil multilayer sampling device which comprises a base, a top supporting plate is fixedly mounted at the top end of the base, a first threaded rod is rotatably mounted in the top supporting plate, and a threaded limiting sliding block is mounted on the outer wall of the first threaded rod in a threaded mode; a ground inserting assembly is fixedly mounted at the bottom end of the threaded limiting sliding block, and a ground inserting semicircular rod is fixedly mounted at the bottom end of the threaded limiting sliding block; the ground inserting tip is fixedly mounted at the bottom end of the ground inserting semicircular rod, a plurality of layered grooves are formed in the ground inserting semicircular rod, and soil sampling devices are arranged in the grooves; a sealing metal plate in the soil sampling device slides in an edge sliding groove to seal a soil sampling box, a second gear and a first rack rotate to drive a pull rope rotating block and a rotating groove to rotate and drive the rotating groove to pull a pull rope, the sealing effect after soil sampling is achieved, a groove is formed in the end, inserted into soil, of the soil sampling box, and the soil sampling effect is improved. And the soil sampling box can be inserted into soil more easily.

Description

Technical Field

[0001] The invention relates to the technical field of highway construction sampling devices, and more specifically, to a highway construction soil multi-layer sampling device. Background Art

[0002] Soil sampling is one of the key tasks in geological exploration. It can help people determine the type of fertilizer to be used when planting crops. It can also detect the degree of soil pollution and the presence of microorganisms, thereby guiding agricultural production and monitoring the current status of soil quality.

[0003] A patent application with publication number CN115839077B discloses a multi-layer soil sampling device for highway construction, which includes a sampling frame, a driving rod, a locking assembly, multiple sampling boxes and multiple sealing plates. The sampling frame can be installed on the frame so as to be movable up and down, and a drill bit is arranged at the lower end of the sampling frame; the driving rod is installed in the sampling frame, and the driving rod can be rotatably arranged; multiple sampling boxes are rotatably installed on the driving rod, and the multiple sampling boxes are sequentially arranged in the sampling frame along the vertical direction. During the rotation of the sampling box for one circle, the sampling box rotates relative to the sealing plate in the first half of the circle to sample the soil, and the sampling box with soil in the second half of the circle is sealed again with the sealing plate and rotates synchronously. After one circle of rotation, the sampling is completed, thereby realizing separate sampling of soils at different depths, and the structure is simple and easy to use.

[0004] Although the above-mentioned device can perform multi-layer sampling of the soil during use, it is necessary to drive the sampling box to rotate during the sampling process, so as to use the rotational force to push the sampling box into the soil. The sampling box is semi-cylindrical. During use, the soil itself is squeezed by gravity. During the sampling process, the sampling box cannot be smoothly pushed into the soil, which is quite laborious. Summary of the invention

[0005] The present invention provides a multi-layer soil sampling device for highway construction, which solves the technical problem that a sampling box in the related art rotates in the soil, so that the sampling box is inserted into the soil by the rotational force, and the sampling box is semi-cylindrical. During use, the soil itself is squeezed by gravity, and the sampling box cannot be smoothly inserted into the soil during the sampling process.

[0006] The present invention provides a multi-layer soil sampling device for highway construction, comprising a base, a top support plate fixedly installed on the top of the base, a first threaded rod rotatably installed inside the top support plate, a threaded limiting sliding block threadedly installed on the outer wall of the first threaded rod, a ground insertion component fixedly installed on the bottom end of the threaded limiting sliding block, the ground insertion component comprising: a ground insertion semicircular rod fixedly installed on the bottom end of the threaded limiting sliding block; a ground insertion pointed head fixedly installed on the bottom end of the ground insertion semicircular rod, a plurality of layered grooves are arranged inside the ground insertion semicircular rod, a soil taking device is arranged inside the groove, the soil taking device is used to collect soil, the soil taking device comprises a soil taking support rod movably installed inside the ground insertion semicircular rod, a soil taking box is fixedly installed inside the soil taking support rod, the soil taking box is used to sample soil, and the side wall of the ground insertion semicircular rod is provided with a sealing device, and the sealing device is used to seal when the ground insertion semicircular rod descends.

[0007] As a further optimization scheme of the present invention, a worm limit block is fixedly installed on the top of the top support plate, a worm gear is rotatably installed inside the worm limit block, a circular gear is fixedly installed on the top of the first threaded rod, a thread is provided on the outer wall of the worm gear to mesh with the circular gear, a first gear is provided at the end of the worm gear, the first gear is used to be connected to the motor, and the worm gear has a locking effect when connected to the circular gear, which is used to calculate the depth of descent of the threaded limit slider.

[0008] As a further optimization scheme of the present invention, the sealing device includes: a first telescopic rod fixedly installed on the upper end of the semicircular rod inserted into the ground; a sealing adjustment plate slidably installed on the side wall of the semicircular rod inserted into the ground, the sealing adjustment plate and the side wall of the semicircular rod inserted into the ground are in the same plane, and a sealing circular protrusion is fixedly installed on the top of the sealing adjustment plate, and the top of the sealing circular protrusion is fixedly installed on the end of the first telescopic rod; a plurality of square grooves are arranged inside the sealing adjustment plate, the grooves of the square grooves are at an equal sealing interval distance from the sealing adjustment plate, and the grooves on the semicircular rod inserted into the ground correspond to the number of the square grooves.

[0009] As a further optimization scheme of the present invention, the soil sampling device includes: a second gear slidably installed inside the groove of the semicircular rod inserted into the ground, and the second gear slides along the center position of the semicircular rod inserted into the ground; a soil sampling support rod rotatably installed on the top of the second gear, and the top of the soil sampling support rod is aligned with the top of the groove of the semicircular rod inserted into the ground; a supporting cylinder fixedly installed on the outer wall of the soil sampling support rod; two soil sampling boxes fixedly installed on the outer wall of the supporting cylinder, the two soil sampling boxes are symmetrical about the vertical center plane of the semicircular rod inserted into the ground, and the end of the soil sampling box away from the center position of the soil sampling support rod is provided with a chamfer for facilitating the insertion of the soil sampling box into the soil for sampling.

[0010] As a further optimization scheme of the present invention, the soil taking device also includes: an edge slide groove arranged inside the soil taking box; a sealing metal plate slidably installed inside the edge slide groove; a square pull block fixedly installed at the bottom end of the sealing metal plate; a pull rope fixedly installed on the side wall of the square pull block; a pull rope rotating block fixedly installed on the outer wall of the upper end of the second gear, a rotating groove is provided on the pull rope rotating block, and the pull rope is wrapped around the outer wall of the rotating groove; a first rack fixedly installed at the bottom end of the layered groove inside the semicircular rod inserted into the ground, and the second gear engages with the first rack when moving, and the second gear is a ratchet gear.

[0011] As a further optimization scheme of the present invention, a transmission device is arranged inside the semicircular rod inserted into the ground, and the transmission device is used to drive the soil box to be inserted into the soil. The transmission device includes: a third threaded rod rotatably installed inside the bottom end of the groove of the semicircular rod inserted into the ground; a square slider threadedly installed on the outer wall of the third threaded rod; and a third gear fixedly installed at the end of the square slider.

[0012] As a further optimization scheme of the present invention, the transmission device also includes: a second threaded rod rotatably installed inside the semicircular rod inserted into the ground; a motor fixing block fixedly installed inside the semicircular rod inserted into the ground; a motor fixing plate fixedly installed on the top of the motor fixing block; a first motor fixedly installed inside the motor fixing plate, the output shaft of the first motor is fixedly connected to the top of the second threaded rod, and the second threaded rod is used to engage with the third gear on the layered groove inside the semicircular rod inserted into the ground.

[0013] As a further optimization solution of the present invention, the distance between the two square grooves is the same as the width of the square groove, and the square groove is the same size as the groove arranged inside the semicircular rod inserted into the ground.

[0014] As a further optimization scheme of the present invention, a roller is provided at the bottom end of the base, a first sealing groove is provided on the side wall of the ground-inserting tip, the sealing adjustment plate slides on the inner wall of the first sealing groove, and the length of the first sealing groove is greater than the length of the sealing adjustment plate.

[0015] As a further optimization solution of the present invention, the length of the groove on the side of the soil borrowing box is smaller than the length of the bottom surface of the soil borrowing box.

[0016] The beneficial effects of the present invention are:

[0017] 1. The highway construction soil multi-layer sampling device described in the present invention seals the soil sampling box by sliding the sealing metal plate inside the soil sampling device inside the edge slide groove, and drives the pull rope rotating block and the rotating groove to rotate through the second gear and the first rack, thereby driving the rotating groove to pull the pull rope, thereby pulling the square pull block to move the sealing metal plate, thereby achieving the effect of sealing after soil sampling, and a groove is provided at the end of the soil sampling box inserted into the soil, so that the soil sampling box is easier to insert into the soil.

[0018] 2. The highway construction soil multi-layer sampling device described in the present invention realizes sealing of the layered grooves inside the semi-circular rod by arranging square grooves and sealing adjustment plates on the side walls of the semi-circular rod, and the sealing adjustment plates and the side walls of the semi-circular rod are in the same horizontal plane, which makes it convenient to insert the semi-circular rod into the soil, reduce resistance, and prevent it from tilting due to uneven force, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the appearance diagram of the overall device of the present invention;

[0020] Figure 2 It is a side view of the overall device of the present invention;

[0021] Figure 3 This is a diagram of the internal structure of the ground insertion assembly of the present invention;

[0022] Figure 4 It is a diagram of the internal structure of the ground insertion assembly of the present invention;

[0023] Figure 5 This is a diagram showing the cooperation between the sealing device and the ground insertion assembly of the present invention;

[0024] Figure 6 It is a diagram of the cooperation between the soil taking device and the transmission device of the present invention;

[0025] Figure 7 It is the internal structure position diagram of the soil taking device of the present invention;

[0026] Figure 8 It is a transmission diagram of the internal structure of the soil taking device of the present invention.

[0027] In the figure:

[0028] 1. Base; 11. Roller; 12. Top support plate; 121. Worm limit block; 122. Worm gear; 123. Circular gear; 124. First gear; 13. First threaded rod; 14. Thread limit slider;

[0029] 2. ground insertion assembly; 21. ground insertion semicircular rod; 22. ground insertion pointed head; 23. first sealing groove;

[0030] 3. Soil taking device; 31. Soil taking box; 311. Edge chute; 312. Support cylinder; 32. Soil taking support rod; 33. Sealing metal plate; 34. Square pull block; 35. Pull rope; 36. Pull rope rotating block; 361. Rotating groove; 37. Second gear; 38. First rack;

[0031] 4. Sealing device; 41. First telescopic rod; 42. Square groove; 43. Sealing adjustment plate; 44. Sealing round protrusion;

[0032] 5. Transmission device; 51. Third threaded rod; 52. Square slider; 53. Third gear; 54. Second threaded rod; 55. Motor fixing block; 56. Motor fixing plate; 57. First motor. DETAILED DESCRIPTION

[0033] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0034] like Figures 1 to 8 As shown, a highway construction soil multi-layer sampling device according to an embodiment of the present invention comprises a base 1, a top support plate 12 is fixedly mounted on the top of the base 1, a first threaded rod 13 is rotatably mounted inside the top support plate 12, a threaded limiting slider 14 is threadedly mounted on the outer wall of the first threaded rod 13, a ground insertion component 2 is fixedly mounted on the bottom end of the threaded limiting slider 14, and the ground insertion component 2 comprises: a ground insertion semicircular rod 21 fixedly mounted on the bottom end of the threaded limiting slider 14; a ground insertion semicircular rod 21 fixedly mounted on the bottom end of the ground insertion semicircular rod 21 A ground tip 22, a plurality of layered grooves are arranged inside the semicircular rod 21 inserted into the ground, a soil taking device 3 is arranged inside the grooves, the soil taking device 3 is used to collect soil, the soil taking device 3 includes a soil taking support rod 32 movably installed inside the semicircular rod 21 inserted into the ground, a soil taking box 31 is fixedly installed inside the soil taking support rod 32, the soil taking box 31 is used to sample soil, and a sealing device 4 is arranged on the side wall of the semicircular rod 21 inserted into the ground, the sealing device 4 is used to seal when the semicircular rod 21 inserted into the ground descends.

[0035] It should be noted that, considering that the sampling device in the comparative document is difficult to descend during use because the part in the excavation soil is provided with a protrusion, and the box with the sampling soil inside has no slope to assist in entering the soil, it will be difficult to rotate and collect in the soil during normal use. The box of the sampling soil cannot be stuffed into the soil, and it is also difficult to take it out of the soil. In order to solve this problem, the following improvements have been made:

[0036] In the initial state, the threaded limiting slider 14 is in contact with the bottom end of the top support plate 12, and the sealing device 4 closes the groove on the semicircular rod 21 inserted into the ground, while the soil box 31 and the soil support rod 32 on the soil taking device 3 are in the evenly layered grooves set inside the semicircular rod 21 inserted into the ground. When it is necessary to sample the soil, the base 1 is first moved to the sampling destination, and the ground at the sampling destination is manually cleaned. After the cleaning is completed, the first threaded rod 13 is driven by a motor to rotate, and the rotation of the first threaded rod 13 drives the threaded limiting slider 14 along The first threaded rod 13 moves downward along the length direction, thereby driving the soil taking box 31 and the soil taking support rod 32 on the soil taking device 3 to move downward. At this time, the sealing device 4 is in a state of completely closing the groove on the ground insertion component 2, until the threaded limit slider 14 drives the ground insertion semicircular rod 21 to completely penetrate into the ground, and the sealing device 4 is driven by the telescopic rod to move upward, so that the groove on the ground insertion semicircular rod 21 and the soil can be completely opened, and then the telescopic rod is used to drive the soil taking box 31 and the soil taking support rod 32 to move outward along the center direction of the ground insertion semicircular rod 21. The soil support rod 32 is thereby driven to be inserted into the soil, and the soil support rod 32 is provided with an inclined surface, which can facilitate the soil support rod 32 to be inserted into the soil, thereby facilitating soil sampling, and the design of the two soil support rods 32 on the soil box 31 can facilitate multi-layer sampling of a layer of soil, which can reduce the error of detection after sampling and improve accuracy, until the soil support rod 32 is fully inserted into the soil, and then the telescopic rod is started to drive the soil box 31 and the soil support rod 32 to be fully retracted to the inside of the semicircular rod 21 for insertion into the ground, and the soil sampling is completed. The effect of multi-layer soil sampling is achieved, and the sealing device 4 is then driven downward by the telescopic rod to completely seal the semicircular rod 21 inserted into the ground. The motor is started to drive the first threaded rod 13 to rotate, which will drive the threaded limit slider 14 and the semicircular rod 21 inserted into the ground to move upward. The telescopic rod is then started to open the sealing device 4, thereby connecting the semicircular rod 21 inserted into the ground with the outside world, and the soil taking device 3 is taken out, thereby completing the purpose of taking away the sampled soil and the sample box. After that, the ground inserting component 2, the soil taking device 3 and the sealing device 4 are cleaned and reset, and the soil can be sampled again.

[0037] like Figure 1 to Figure 2As shown, a worm limit block 121 is fixedly installed on the top of the top support plate 12, and a worm gear 122 is rotatably installed inside the worm limit block 121. A circular gear 123 is fixedly installed on the top of the first threaded rod 13. The outer wall of the worm gear 122 is provided with a thread meshing with the circular gear 123. A first gear 124 is provided at the end of the worm gear 122. The first gear 124 is used to connect with the motor. The worm gear 122 has a locking effect when connected to the circular gear 123, and is used to calculate the depth of the descent of the threaded limit slider 14.

[0038] It should be noted that a worm limit block 121 is fixedly installed on the top of the top support plate 12, and a worm gear 122 is rotatably installed inside the worm limit block 121. A circular gear 123 is fixedly installed on the top of the first threaded rod 13. The outer wall of the worm gear 122 is provided with a thread that meshes with the circular gear 123. A first gear 124 is provided at the end of the worm gear 122. The first gear 124 is used to connect to the motor. The worm gear 122 has a locking effect when connected to the circular gear 123, which is used to calculate the depth of the descent of the threaded limit slider 14, facilitate the insertion of the semi-circular rod 21 into the soil, and calculate the length of the inserted semi-circular rod 21.

[0039] like Figures 2 to 5 As shown, the sealing device 4 includes: a first telescopic rod 41 fixedly mounted on the upper end of the semicircular rod 21 inserted into the ground; a sealing adjustment plate 43 slidably mounted on the side wall of the semicircular rod 21 inserted into the ground, the sealing adjustment plate 43 and the side wall of the semicircular rod 21 inserted into the ground are in the same plane, a sealing circular protrusion 44 is fixedly mounted on the top of the sealing adjustment plate 43, and the top of the sealing circular protrusion 44 is fixedly mounted on the end of the first telescopic rod 41; a plurality of square grooves 42 are arranged inside the sealing adjustment plate 43, the grooves of the square grooves 42 are at an equal sealing interval distance from the sealing adjustment plate 43, and the number of grooves on the semicircular rod 21 inserted into the ground corresponds to the number of square grooves 42.

[0040] It should be noted that the sealing adjustment plate 43 and the side wall of the semicircular rod 21 inserted into the ground are in the same plane, and the end of the first telescopic rod 41 is fixedly installed with the top of the sealing adjustment plate 43. Starting the first telescopic rod 41 can drive the sealing adjustment plate 43 to rise and fall, thereby sealing the semicircular rod 21 inserted into the ground. The groove of the square groove 42 is equal to the sealing interval distance of the sealing adjustment plate 43. The size and number of the semicircular rod 21 inserted into the ground correspond to the square groove 42. When the first telescopic rod 41 drives the sealing adjustment plate 43 to rise and fall, the groove on the semicircular rod 21 inserted into the ground is staggered with the square groove 42, thereby achieving a sealing effect.

[0041] like Figures 5 to 8As shown, the soil taking device 3 includes: a second gear 37 slidably mounted inside the groove of the semicircular rod 21 inserted into the ground, and the second gear 37 slides along the center position of the semicircular rod 21 inserted into the ground; a soil taking support rod 32 rotatably mounted on the top of the second gear 37, and the top of the soil taking support rod 32 is aligned with the top of the groove of the semicircular rod 21 inserted into the ground; a support cylinder 312 fixedly mounted on the outer wall of the soil taking support rod 32; two soil taking boxes 31 fixedly mounted on the outer wall of the support cylinder 312, the two soil taking boxes 31 are symmetrical about the vertical center plane of the semicircular rod 21 inserted into the ground, and a chamfer is provided at the end of the soil taking box 31 away from the center position of the soil taking support rod 32, which is used to facilitate the insertion of the soil taking box 31 into the soil for sampling.

[0042] It should be noted that, considering that the soil sampling device 3 needs to be inserted into the soil and multiple samples can be taken from the same layer of soil, multiple grooves are arranged on the semicircular rod 21 for insertion into the ground, and a soil sampling box 31 and a soil sampling support rod 32 are arranged inside the grooves. The soil sampling support rod 32 is used for sampling at two angles. When sampling, the two soil sampling support rods 32 are driven by a telescopic rod to extend out of the semicircular rod 21 for insertion into the ground. After sampling, the two soil sampling support rods 32 are retracted to complete the sampling work. A slope is arranged on one side of the soil sampling support rod 32 inserted into the soil, so as to facilitate the sampling of the soil.

[0043] like Figures 5 to 8 As shown, the soil taking device 3 also includes: an edge slide groove 311 arranged inside the soil taking box 31; a sealing metal plate 33 slidably installed inside the edge slide groove 311; a square pull block 34 fixedly installed at the bottom end of the sealing metal plate 33; a pull rope 35 fixedly installed on the side wall of the square pull block 34; a pull rope rotating block 36 fixedly installed on the outer wall of the upper end of the second gear 37, and a rotating groove 361 is provided on the pull rope rotating block 36, and the pull rope 35 is wound around the outer wall of the rotating groove 361; a first rack 38 fixedly installed at the bottom end of the layered groove inside the semicircular rod 21 inserted into the ground, and the second gear 37 engages with the first rack 38 when moving, and the second gear 37 is a ratchet gear.

[0044] It should be noted that, in order to prevent the soil from falling when the sealing metal plate 33 is retracted into the semicircular rod 21 after sampling the soil, a sealing metal plate 33 is provided inside the soil taking box 31, and the sealing metal plate 33 slides inside the edge slide groove 311. Therefore, when the telescopic rod drives the soil taking support rod 32 to approach the center position of the semicircular rod 21 inserted into the ground, the soil taking box 31 is inserted into the soil. In this process, a notch is provided at the top of the groove of the semicircular rod 21 inserted into the ground, thereby limiting the rotation adjustment of the soil taking box 31, and preventing the soil taking box 31 from driving the soil taking support rod 32 to move, and the soil taking support rod 32 cannot be inserted into the soil. When the soil taking box 31 is about to be extended to the longest distance, the second gear 37 engages with the first rack 38, thereby driving the second gear 37 to rotate The top of the second gear 37 is fixedly connected to the pull rope rotating block 36, thereby driving the pull rope rotating block 36 to rotate, and the rotating groove 361 arranged inside the pull rope rotating block 36 can pull the square pulling block 34, so that the sealing metal plate 33 moves toward the groove on the soil taking box 31, so as to seal the soil taking box 31 and prevent the collected soil from falling and mixing. When the soil taking box 31 is retracted to the groove of the semicircular rod 21 inserted into the ground, the second gear 37 is meshed with the first rack 38 again, and the second gear 37 is a ratchet gear, which will not push the sealing metal plate 33 back again. Therefore, when the semicircular rod 21 inserted into the ground is taken out, the entirety of the soil taking device 3 except the first rack 38 can be taken out, so as to be taken to the laboratory for testing, and then the soil taking device 3 is cleaned, and the soil taking device 3 can be installed for sampling again.

[0045] like Figures 4 to 6 As shown, a transmission device 5 is provided inside the semicircular rod 21 for inserting into the ground, and the transmission device 5 is used to drive the soil box 31 to be inserted into the soil. The transmission device 5 includes: a third threaded rod 51 rotatably installed inside the bottom end of the groove of the semicircular rod 21 for inserting into the ground; a square slider 52 threadedly installed on the outer wall of the third threaded rod 51; and a third gear 53 fixedly installed at the end of the square slider 52.

[0046] It should be noted that, considering that it is rather troublesome to use a telescopic rod to drive the soil taking box 31 and the soil taking support rod 32 to move, a third threaded rod 51 and a square slider 52 are provided, and the third gear 53 is driven by a motor to rotate, and the third gear 53 drives the third threaded rod 51 to rotate, thereby driving the square slider 52 to move, and the movement of the square slider 52 drives the soil taking box 31 and the soil taking support rod 32 to extend into the soil.

[0047] like Figures 4 to 6As shown, the transmission device 5 also includes: a second threaded rod 54 rotatably installed inside the semicircular rod 21 inserted into the ground; a motor fixing block 55 fixedly installed inside the semicircular rod 21 inserted into the ground; a motor fixing plate 56 fixedly installed on the top of the motor fixing block 55; a first motor 57 fixedly installed inside the motor fixing plate 56, the output shaft of the first motor 57 is fixedly connected to the top of the second threaded rod 54, and the second threaded rod 54 is used to engage with the third gear 53 on the layered groove inside the semicircular rod 21 inserted into the ground.

[0048] It should be noted that, considering the need to drive the third gear 53 to extend synchronously into the soil, the first motor 57 can be started to rotate to drive the second threaded rod 54 to rotate, and the second threaded rod 54 rotates to drive the third gear 53 to rotate, thereby driving multiple third threaded rods 51 to rotate, thereby achieving the purpose of moving the soil taking box 31 and the soil taking support rod 32.

[0049] like Figures 4 to 5 As shown, the distance between the two square grooves 42 is the same as the width of the square groove 42 , and the square groove 42 is the same size as the groove arranged inside the semicircular rod 21 inserted into the ground.

[0050] It should be noted that the distance between the two square grooves 42 is the same as the width of the square groove 42, and the square groove 42 is the same size as the groove set inside the semicircular rod 21 inserted into the ground, so that when the first telescopic rod 41 drives the square groove 42 to move, the groove on the semicircular rod 21 inserted into the ground can be sealed.

[0051] like Figure 1 and Figures 4 to 5 As shown, a roller 11 is provided at the bottom end of the base 1, a first sealing groove 23 is provided on the side wall of the ground-inserting tip 22, and the sealing adjustment plate 43 slides on the inner wall of the first sealing groove 23, and the length of the first sealing groove 23 is greater than the length of the sealing adjustment plate 43.

[0052] It should be noted that a roller 11 is provided at the bottom end of the base 1, and a first sealing groove 23 is provided on the side wall of the ground-inserted pointed head 22. The sealing adjustment plate 43 slides on the inner wall of the first sealing groove 23. The length of the first sealing groove 23 is greater than the length of the sealing adjustment plate 43, so that when the sealing adjustment plate 43 moves inside the first sealing groove 23, it can achieve the function of sealing the groove inside the semicircular rod 21 for inserting into the ground and opening the groove inside the semicircular rod 21 for inserting into the ground.

[0053] like Figure 7 As shown, the length of the groove on the side of the soil-getting box 31 is smaller than the length of the bottom surface of the soil-getting box 31.

[0054] It should be noted that the length of the groove on the side of the soil box 31 is smaller than the length of the bottom of the soil box 31, so that when the square pull block 34 is pulled to the nearest end close to the second gear 37, the sealing metal plate 33 slides inside the edge groove 311, thereby completely sealing the groove of the soil box 31.

[0055] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A multi-layer soil sampling device for highway construction, comprising a base (1), characterized in that: A top support plate (12) is fixedly mounted on the top of the base (1), a first threaded rod (13) is rotatably mounted inside the top support plate (12), a threaded limiting slider (14) is threadedly mounted on the outer wall of the first threaded rod (13), a ground insertion assembly (2) is fixedly mounted on the bottom end of the threaded limiting slider (14), and the ground insertion assembly (2) comprises: A ground-inserted semicircular rod (21) fixedly mounted on the bottom end of the threaded limit slider (14); A ground-inserting pointed head (22) is fixedly mounted at the bottom end of the ground-inserting semicircular rod (21); a plurality of layered grooves are arranged inside the ground-inserting semicircular rod (21); a soil-taking device (3) is arranged inside the groove; the soil-taking device (3) is used to collect soil; the soil-taking device (3) comprises a soil-taking support rod (32) movably mounted inside the ground-inserting semicircular rod (21); a soil-taking box (31) is fixedly mounted inside the soil-taking support rod (32); the soil-taking box (31) is used to sample soil; a sealing device (4) is arranged on the side wall of the ground-inserting semicircular rod (21); the sealing device (4) is used to seal when the ground-inserting semicircular rod (21) descends.

2. A highway construction soil multi-layer sampling device according to claim 1, characterized in that: A worm stop block (121) is fixedly mounted on the top of the top support plate (12), a worm gear (122) is rotatably mounted inside the worm stop block (121), a circular gear (123) is fixedly mounted on the top of the first threaded rod (13), a thread is provided on the outer wall of the worm gear (122) and meshes with the circular gear (123), a first gear (124) is provided at the end of the worm gear (122), the first gear (124) is used to be connected to a motor, and the worm gear (122) has a locking effect when connected to the circular gear (123), and is used to calculate the depth of descent of the threaded stop slider (14).

3. A highway construction soil multi-layer sampling device according to claim 2, characterized in that: The sealing device (4) comprises: A first telescopic rod (41) fixedly mounted on the upper end of the inner part of the semicircular rod (21) inserted into the ground; A sealing adjustment plate (43) is slidably mounted on the side wall of the semicircular rod (21) inserted into the ground, the sealing adjustment plate (43) and the side wall of the semicircular rod (21) inserted into the ground are in the same plane, a sealing round protrusion (44) is fixedly mounted on the top end of the sealing adjustment plate (43), and the top end of the sealing round protrusion (44) is fixedly mounted on the end of the first telescopic rod (41); A plurality of square grooves (42) are arranged inside the sealing adjustment plate (43), the grooves of the square grooves (42) are spaced at the same sealing distance as the sealing adjustment plate (43), and the number of grooves on the semicircular rod (21) inserted into the ground corresponds to the number of the square grooves (42).

4. A highway construction soil multi-layer sampling device according to claim 3, characterized in that: The soil taking device (3) comprises: A second gear (37) slidably mounted inside a groove of the ground-inserted semicircular rod (21), the second gear (37) sliding along the center of the ground-inserted semicircular rod (21); Rotating a soil-extracting support rod (32) mounted on the top of the second gear (37), wherein the top of the soil-extracting support rod (32) is aligned with the top of the groove of the semicircular rod (21); A supporting cylinder (312) fixedly mounted on the outer wall of the soil-excavating supporting rod (32); Two soil sampling boxes (31) are fixedly mounted on the outer wall of the supporting cylinder (312), the two soil sampling boxes (31) being symmetrical with respect to the vertical center plane of the semicircular rod (21) inserted into the ground, and the ends of the soil sampling boxes (31) away from the center of the soil sampling support rod (32) are provided with grooves for facilitating the insertion of the soil sampling boxes (31) into the soil for sampling.

5. A road construction soil multi-layer sampling device according to claim 4, characterized in that: The soil taking device (3) further comprises: An edge chute (311) provided inside the soil taking box (31); A sealing metal plate (33) slidably mounted inside the edge slide groove (311); A square pull block (34) fixedly mounted on the bottom end of the sealing metal plate (33); A draw cord (35) fixedly mounted on the side wall of the square draw block (34); a pull rope rotating block (36) fixedly mounted on the outer wall of the upper end of the second gear (37), wherein the pull rope rotating block (36) is provided with a rotating groove (361), and the pull rope (35) is wound around the outer wall of the rotating groove (361); A first rack (38) is fixedly mounted at the bottom end of the layered groove inside the ground-inserted semicircular rod (21); the second gear (37) meshes with the first rack (38) when moving; the second gear (37) is a ratchet gear.

6. A road construction soil multi-layer sampling device according to claim 5, characterized in that: A transmission device (5) is arranged inside the semicircular rod (21) for inserting into the ground. The transmission device (5) is used to drive the soil-taking box (31) to be inserted into the soil. The transmission device (5) comprises: A third threaded rod (51) is rotatably mounted inside the bottom end of the groove of the semicircular rod (21) inserted into the ground; A square slider (52) threadedly mounted on the outer wall of the third threaded rod (51); A third gear (53) is fixedly mounted on the end of the square slider (52).

7. A highway construction soil multi-layer sampling device according to claim 6, characterized in that: The transmission device (5) further comprises: A second threaded rod (54) rotatably mounted inside the ground-inserted semicircular rod (21); A motor fixing block (55) fixedly mounted inside the semicircular rod (21) inserted into the ground; A motor fixing plate (56) fixedly mounted on the top of the motor fixing block (55); A first motor (57) is fixedly mounted inside the motor fixing plate (56), wherein an output shaft of the first motor (57) is fixedly connected to a top end of the second threaded rod (54), and the second threaded rod (54) is used to mesh with a third gear (53) on a layered groove inside the semicircular rod (21) inserted into the ground.

8. A road construction soil multi-layer sampling device according to claim 7, characterized in that: The distance between the two square grooves (42) is the same as the width of the square groove (42), and the square groove (42) is the same size as the groove arranged inside the semicircular rod (21) inserted into the ground.

9. A highway construction soil multi-layer sampling device according to claim 8, characterized in that: A roller (11) is provided at the bottom end of the base (1), a first sealing groove (23) is provided on the side wall of the ground-inserting tip (22), the sealing adjustment plate (43) slides on the inner wall of the first sealing groove (23), and the length of the first sealing groove (23) is greater than the length of the sealing adjustment plate (43).

10. A road construction soil multi-layer sampling device according to claim 9, characterized in that: The length of the groove on the side of the soil taking box (31) is smaller than the length of the bottom surface of the soil taking box (31).

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