Contaminated-soil sampling drilling depth precise measurement device for environmental investigation

Abstract

The present invention relates to a contaminated-soil sampling drilling depth precise measurement device for environmental investigation, the device comprising a support base and a mounting seat, wherein a force distribution assembly is arranged between the support base and the mounting seat; the top of the mounting seat is connected to a support frame by means of several hydraulic lifting devices; a driving electric motor is mounted at the bottom of the support frame, and an output shaft of the driving electric motor extends to the top of the support frame and is fixedly sleeved with a second driving gear; a driving ring is movably connected to the support frame, and a first driving gear is sleeved on the outer wall of the driving ring; a driving sleeve is movably arranged in the driving ring, and the driving sleeve is connected to a drilling measurement assembly by means of a connecting support; and stabilization assemblies are mounted on the drilling measurement assembly. The objective of the present invention lies in providing a contaminated-soil sampling drilling depth precise measurement device for environmental investigation to overcome existing defects. The contaminated-soil sampling drilling depth precise measurement device has high drilling precision and measurement precision.

Description

A device for accurately measuring the depth of contaminated soil sampling boreholes used in environmental surveys Technical Field

[0001] This invention relates to the field of drilling technology, specifically to a device for accurately measuring the drilling depth of contaminated soil sampling boreholes used in environmental surveys. Background Technology

[0002] With the acceleration of industrialization and urbanization, soil pollution has become one of the most serious environmental problems. Its impact is not limited to the soil itself, but may also have long-term effects on groundwater and ecosystems.

[0003] Site investigation is one of the first steps in assessing the degree of soil and groundwater pollution. By sampling and analyzing underground soil, the type, concentration, and distribution of pollutants can be determined, providing data support for developing effective remediation plans.

[0004] In the prior art: CN202011357798.7 - A high-efficiency drilling device for mining, a base is included. Universal wheels are provided at each of the four corners of the base. A fixing device is provided in the middle of the lower part of the base. Support columns are symmetrically installed on both sides of the upper part of the base. A rack plate is fixedly installed on the inner side of each support column. A lifting sleeve is slidably connected to the outside of each support column. An adjusting rod is hinged to the support. An installation plate is fixedly installed at one end of the support plate. A fixing frame is hinged to the upper end of the installation plate. The other end of the adjusting rod is hinged to the middle of the fixing frame. A drilling mechanism is installed on one side of the fixing frame.

[0005] The drilling depth of the aforementioned patent needs to be measured by other means after drilling is completed. Furthermore, the rigid fixing device under the base is used for stability, which can easily lead to the excessive concentration of the action point and damage to the device. In addition, the continuous shaking of the drill bit during drilling cannot guarantee the verticality of the drilling, thereby reducing the drilling accuracy and measurement accuracy.

[0006] Therefore, a device for accurately measuring the borehole depth of contaminated soil sampling in environmental investigations is proposed to address the above problems. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of existing devices and provide a precise measuring device for the borehole depth of contaminated soil sampling in environmental surveys, with high drilling and measurement accuracy.

[0008] The technical solution to achieve the above objective is: a device for accurately measuring the borehole depth of contaminated soil sampling for environmental investigation, comprising a support base and a mounting base, wherein a force-relieving component is provided between the support base and the mounting base; the top of the mounting base is connected to a support frame via several sets of hydraulic lifting devices; a drive motor is installed at the bottom of the support frame, and the output shaft of the drive motor extends to the top of the support frame and is fixedly sleeved with a drive gear; a drive ring is movably connected to the support frame, and the drive gear is sleeved on the outer wall of the drive ring; the drive sleeve is movably disposed within the drive ring, and the drive sleeve is connected to a borehole measuring component via a connecting bracket; a stabilizing component is installed on the borehole measuring component.

[0009] The pressure relief assembly includes a buffer, a helical pneumatic spring, and a pressure relief unit. The pressure relief unit is located at the center of the top of the support base. The support base and the mounting base are connected by several sets of the buffer and the helical pneumatic spring. Several sets of the helical pneumatic spring are arranged around the pressure relief unit, and several sets of the buffer are arranged around the helical pneumatic spring. The bottom of the helical pneumatic spring is fixedly connected to the support base, and the top of the helical pneumatic spring extends to the top of the mounting base and is connected to the air pump through a sealing connector. Several sets of the air pump are arranged around the top of the mounting base, and each set of air pumps corresponds to one set of helical pneumatic springs.

[0010] The drilling measurement assembly includes a connecting sleeve and a guide sleeve. The connecting sleeve is fixedly fitted onto the top of the guide sleeve. One end of the connecting bracket is fixedly connected to the drive sleeve, and the other end is fixedly connected to the connecting sleeve. The guide sleeve is movably fitted onto the outer wall of the drive rod, and the top of the drive rod is movably connected to the reciprocating connecting rod. The bottom of the drive rod is fixedly connected to the drill bit. The fixing plate and the support plate are both fitted onto the outer wall of the guide sleeve. The stabilizing components are located at the four top corners of the support plate.

[0011] The stabilizing component includes a support sleeve movably connected to the support plate, a T-shaped threaded rod movably disposed within the support sleeve, and the support sleeve and the T-shaped threaded rod being connected by a thread. The T-shaped threaded rod has a cavity, and the T-shaped end of the T-shaped connecting rod is movably disposed within the cavity. The other end of the T-shaped connecting rod abuts against the bottom of the inner wall of the support sleeve. The piercing head is fixedly connected to the bottom of the support sleeve. A through groove is opened on the outer wall of the support sleeve, and an anchoring hook is movably connected to the top of the piercing head. One end of the first connecting rod is movably connected to the anchoring hook, and the other end is movably connected to the T-shaped connecting rod.

[0012] Preferably, the first drive gear meshes with the second drive gear, the drive sleeve and the drive ring are connected by a shaft pin, the bottom of the rotating rod moves through the drive sleeve and extends to the bottom of the drive ring, the bottom of the rotating rod is fixedly connected to the bottom of the inner wall of the drive ring, one end of the drive component is movably connected to the top of the rotating rod, and the other end is movably connected to the reciprocating connecting rod.

[0013] Preferably, the fixing plate is located above the support plate, and the fixing plate and the support plate are connected by a first telescopic rod. The fixing plate is fixedly connected to the guide sleeve, and the support plate is movably connected to the guide sleeve. The outer wall of the guide sleeve is provided with a scale for measurement.

[0014] Preferably, the buffer component includes a sealing sleeve and a sealing rod; the upper end of the sealing sleeve and the lower end of the sealing rod are both provided with the same ball head structure, and the upper end of the sealing sleeve is movably connected to the bottom of the mounting base, the lower end of the sealing rod is movably connected to the top of the support base, the top of the sealing rod extends movably into the sealing sleeve, and the top of the sealing rod has a through hole, the sealing rod has a hollow structure, a buffer spring and a ball valve are both provided in the sealing rod, one end of the buffer spring is fixedly connected to the ball valve, the other end of the buffer spring is fixedly connected to the bottom of the inner wall of the sealing rod, the ball valve is movably connected to the inner wall of the sealing rod, and the cavity formed between the top of the sealing rod and the top of the inner wall of the sealing sleeve is filled with damping fluid.

[0015] Preferably, the pressure relief unit includes a buffer base and a shaped support column; the buffer base is fixedly connected to the top center of the support base, the guide column is fixedly connected to the center of the buffer base, the shaped support column and the second buffer spring are both sleeved on the outer wall of the guide column, and the shaped support column and the guide column are movably connected, the two ends of the second buffer spring are fixedly connected to the bottom of the outer wall of the shaped support column and the guide column respectively, a number of sets of tooth blocks are fixedly provided on the outer wall of the shaped support column, a drive groove is opened in the buffer base, a drive gear is movably disposed in the drive groove, two sets of auxiliary support members are symmetrically disposed on both sides of the shaped support column, and the bottom of the auxiliary support members extends movably into the buffer base, a number of sets of tooth blocks are provided on the side of the auxiliary support member near the drive gear, and both the first tooth block and the second tooth block mesh with the drive gear.

[0016] Preferably, the top of the auxiliary support member has a U-shaped structure, a buffer sleeve one is fixedly connected to the center of the top of the auxiliary support member, and a buffer spring three is provided inside the buffer sleeve one. The vertical section of the T-shaped member is movably disposed inside the buffer sleeve one and fixedly connected to the buffer spring three. Two sets of buffer sleeves two are symmetrically disposed on both sides of the buffer sleeve one, and the buffer sleeves two are fixedly connected to the top of the auxiliary support member. One end of the irregularly shaped connector near the vertical section of the T-shaped member is fixedly connected to the outer wall of the vertical section of the T-shaped member, and the other end of the irregularly shaped connector near the buffer sleeve two is movably disposed. The auxiliary support is movably installed inside the second buffer sleeve, which is filled with buffer solution. The top of the U-shaped groove of the auxiliary support is provided with a horizontal strip guide groove, and the bottom of the push rod is movably installed in the guide groove. One end of the second telescopic rod is movably connected to the push rod, and the other end is movably connected to the irregular connecting piece. The U-shaped vertical section of the auxiliary support is a hollow structure, and the fourth buffer spring is installed inside the U-shaped vertical section of the auxiliary support. One end of the second connecting rod is fixedly connected to the T-shaped piece, and the other end is movably installed inside the U-shaped vertical section of the auxiliary support and fixedly connected to the fourth buffer spring.

[0017] The beneficial effects of this invention are as follows: This device for accurately measuring the borehole depth of contaminated soil sampling in environmental surveys can simultaneously observe the borehole depth during drilling. Furthermore, the force-relieving component can decompose the vibration force generated during drilling to various corners of the device, changing the traditional rigid base contact and avoiding damage to the device due to excessive concentration of force points. This improves safety and enhances the stability of the drilling process. The stabilizing component can limit the movement of the borehole measuring component, reducing continuous shaking during drilling and effectively ensuring the verticality of the borehole, thus improving drilling accuracy and measurement precision.

[0018] Simultaneously, the precise measurement of drilling depth is achieved through a hydraulic lifting and drive system, ensuring the accuracy and reliability of the measurement results. The stabilizing components and support structure design within the device help maintain the stability of the measurement process, reducing interference caused by external environmental factors or operational errors, and improving measurement stability and repeatability. Using a drive motor and hydraulic lifting device, the operation during the measurement process is relatively automated, reducing the impact of human intervention and improving measurement efficiency and accuracy. The design of buffer and stabilizing components in the equipment helps protect the measuring device and operators, reducing the risk of accidents. The measurement method is simple and easy to implement, with a clear and straightforward operation process, suitable for various drilling scenarios, and possesses high practicality and applicability. Attached Figure Description

[0019] Figure 1 is a front view of the present invention;

[0020] Figure 2 is a detailed view of the connection of the second drive gear of the present invention;

[0021] Figure 3 is a schematic diagram of the borehole measurement component of the present invention;

[0022] Figure 4 is a schematic diagram of the stabilizing component of the present invention;

[0023] Figure 5 is a schematic diagram of the force-relieving component of the present invention;

[0024] Figure 6 is a schematic diagram of the buffer component of the present invention;

[0025] Figure 7 is a cross-sectional view of the force-relieving component of the present invention;

[0026] Figure 8 is an enlarged view of point A in Figure 7.

[0027] In the diagram: 1. Support base; 2. Unloading assembly; 3. Mounting seat; 4. Hydraulic lifting device; 5. Drive motor; 6. Support frame; 7. Drive gear one; 8. Drive gear two; 9. Drive sleeve; 10. Connecting bracket; 11. Drilling measurement assembly; 12. Stabilizing assembly; 13. Drive ring; 14. Drive component; 15. Rotating rod; 16. Reciprocating connecting rod; 17. Drive rotating rod; 18. Connecting sleeve; 19. Fixing plate; 20. First telescopic rod; 21. Guide sleeve; 22. Support plate; 23. Drill bit; 24. T-shaped threaded rod; 25. Cavity; 26. Support sleeve; 27. Through slot; 28. T-shaped connecting rod; 29. ​​Anchor hook; 30. First connecting rod; 31. Puncture head; 32. Buffer component; 33. Helical pneumatic spring; 34. Pressure relief unit; 35. Sealing connector; 36. Air pump; 37. Sealing sleeve; 38. Sealing support rod; 39. Buffer spring one; 40. Through hole; 41. Ball valve; 42. Buffer base; 43. Guide support column; 44. Buffer spring two; 45. Drive groove; 46. Auxiliary support component; 47. Irregular support column; 48. Tooth block one; 49. Drive gear three; 50. T-shaped component; 51. Irregular connecting component; 52. Second telescopic rod; 53. Push rod; 54. Buffer sleeve one; 55. Buffer sleeve two; 56. Buffer solution; 57. Buffer spring three; 58. Second connecting rod; 59. Buffer spring four; 60. Tooth block two. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] As shown in Figures 1-8, a device for accurately measuring the drilling depth of contaminated soil sampling for environmental investigation includes a support base 1 and a mounting base 3. A force-relieving component 2 is provided between the support base 1 and the mounting base 3. The top of the mounting base 3 is connected to a support frame 6 via several sets of hydraulic lifting devices 4. A drive motor 5 is installed at the bottom of the support frame 6, and the output shaft of the drive motor 5 extends to the top of the support frame 6 and is fixedly sleeved with a drive gear 8. A drive ring 13 is movably connected to the support frame 6, and a drive gear 7 is sleeved on the outer wall of the drive ring 13. A drive sleeve 9 is movably disposed inside the drive ring 13, and the drive sleeve 9 is connected to a drilling measurement component 11 via a connecting bracket 10. A stabilizing component 12 is installed on the drilling measurement component 11.

[0031] As shown in Figure 2, drive gear 7 meshes with drive gear 8, drive sleeve 9 and drive ring 13 are connected by a shaft pin, the bottom of rotating rod 15 moves through drive sleeve 9 and extends to the bottom of drive ring 13, the bottom of rotating rod 15 is fixedly connected to the bottom of the inner wall of drive ring 13, one end of drive component 14 is movably connected to the top of rotating rod 15, and the other end is movably connected to reciprocating connecting rod 16.

[0032] As shown in Figure 3, the drilling measurement assembly 11 includes a connecting sleeve 18 and a guide sleeve 21. The connecting sleeve 18 is fixedly fitted onto the top of the guide sleeve 21. One end of the connecting bracket 10 is fixedly connected to the drive sleeve 9, and the other end is fixedly connected to the connecting sleeve 18. The guide sleeve 21 is movably fitted onto the outer wall of the drive rod 17, and the top of the drive rod 17 is movably connected to the reciprocating connecting rod 16. The bottom of the drive rod 17 is fixedly connected to the drill bit 23. The fixing plate 19 and the support plate 22 are both fitted onto the outer wall of the guide sleeve 21. The stabilizing assembly 12 is located at the four corners of the support plate 22. The lengths of the drive rod 17 and the guide sleeve 21 can be extended or shortened according to the actual needs on site.

[0033] As shown in Figure 3, the fixing plate 19 is located above the support plate 22, and the fixing plate 19 and the support plate 22 are connected by the first telescopic rod 20. The fixing plate 19 is fixedly connected to the guide sleeve 21, and the support plate 22 is movably connected to the guide sleeve 21. The outer wall of the guide sleeve 21 is provided with a scale for measurement.

[0034] Specifically, in use, after fixing the drive sleeve 9 and drive ring 13 with the shaft pin, the drive motor 5 is started to drive the drive gear 8 to rotate. The drive gear 8 drives the drive sleeve 9 and drive ring 13 to rotate synchronously through the drive gear 7, thereby driving the drilling measuring assembly 11 to rotate to the drilling position through the connecting bracket 10. Then, the shaft pin is pulled out, the drive sleeve 9 and drive ring 13 separate, and the drive motor 5 is started again. At this time, the drive ring 13 only drives the rotating rod 15 to rotate. The rotating rod 15 drives the drive rod 17 to rotate through the drive component 14 and the reciprocating connecting rod 16. The drive rod 17 rotates in the guide sleeve 21 while simultaneously driving the drill bit 23 to rotate. Simultaneously, the hydraulic lifting device 4 is activated to lower the support frame 6, and after the support plate 22 is in contact with the ground, the hydraulic lifting device 4 is closed. After the guide sleeve 21 is protected by the stabilizing component 12, the hydraulic lifting device 4 is activated again. At this time, as the support frame 6 descends, the drill bit 23 is also drilling synchronously, and the guide sleeve 21 will descend synchronously into the hole (the diameter of the drill bit 23 is larger than the diameter of the guide sleeve 21). As the guide sleeve 21 descends synchronously, the drilling depth can be read by observing the position of the support plate 22 on the outer wall scale of the guide sleeve 21 (as shown by the outer wall scale of the drilling measurement component 11 in Figure 1), thus obtaining the hole depth data at the same time as drilling.

[0035] This invention enables simultaneous observation of hole depth during drilling. Furthermore, the force-relieving component 2 disperses the vibration generated during drilling to various corners of the device, changing the traditional rigid base contact and preventing damage caused by excessive concentration of force points. This improves safety and enhances the stability of the drilling process. The stabilizing component 12 limits the drilling measurement component 11, reducing continuous shaking during drilling and effectively ensuring the verticality of the hole, thus improving drilling accuracy and measurement precision.

[0036] As shown in Figure 4, the stabilizing component 12 includes a support sleeve 26, which is movably connected to the support plate 22. A T-shaped threaded rod 24 is movably disposed within the support sleeve 26, and the support sleeve 26 and the T-shaped threaded rod 24 are connected by threads. A cavity 25 is provided inside the T-shaped threaded rod 24. The T-shaped end of the T-shaped connecting rod 28 is movably disposed within the cavity 25, and the other end of the T-shaped connecting rod 28 abuts against the bottom of the inner wall of the support sleeve 26. The piercing head 31 is fixedly connected to the bottom of the support sleeve 26. A through groove 27 is provided on the outer wall of the support sleeve 26. An anchoring hook 29 is movably connected to the top of the piercing head 31. One end of the first connecting rod 30 is movably connected to the anchoring hook 29, and the other end is movably connected to the T-shaped connecting rod 28.

[0037] Specifically, when the hydraulic lifting device 4 is activated to lower the support frame 6 and bring the support plate 22 into contact with the ground, the support sleeve 26 with the piercing head 31 is slightly driven into the ground. Then, the T-shaped threaded rod 24 is rotated using a wrench or other auxiliary tools. Since the T-shaped threaded rod 24 is connected to the support sleeve 26 by threads, when the T-shaped threaded rod 24 first rotates, it will descend along the inner wall of the support sleeve 26. After the T-shaped threaded rod 24 descends to the bottom of the support sleeve 26, the rotation of the T-shaped threaded rod 24 will also drive the support sleeve 26 to rotate, thereby causing the piercing head 31 to penetrate into the ground in a rotating manner and drive the support sleeve 26 to rotate. 6. After reaching the predetermined depth, reverse the T-shaped threaded rod 24. At this time, the support sleeve 26 remains stationary, while the T-shaped threaded rod 24 moves upward along the inner wall of the support sleeve 26. Simultaneously, it drives the T-shaped connecting rod 28 to move upward, and through the two sets of first connecting rods 30, pulls the two sets of anchoring hooks 29 to unfold along the through groove 27 in a direction away from each other, thereby penetrating into the soil to achieve the anchoring effect. The stabilizing component 12 is simple to use and firmly fixed. The setting of the stabilizing component 12 can limit the drilling measurement component 11, reduce the continuous shaking that occurs during drilling, and effectively ensure the verticality of the drilling, thereby improving the drilling accuracy and measurement accuracy.

[0038] As shown in Figure 5, the stress relief assembly 2 includes a buffer 32, a helical pneumatic spring 33, and a pressure relief unit 34. The pressure relief unit 34 is located at the top center of the support base 1. The support base 1 and the mounting base 3 are connected by several sets of buffers 32 and helical pneumatic springs 33. Several sets of helical pneumatic springs 33 are arranged around the pressure relief unit 34, and several sets of buffers 32 are arranged around the helical pneumatic springs 33. The bottom of the helical pneumatic spring 33 is fixedly connected to the support base 1, and the top of the helical pneumatic spring 33 extends to the top of the mounting base 3 and is connected to the air pump 36 through a sealing connector 35. Several sets of air pumps 36 are arranged around the top of the mounting base 3, and each set of air pumps 36 corresponds to a set of helical pneumatic springs 33.

[0039] As shown in Figure 6, the buffer component 32 includes a sealing sleeve 37 and a sealing support rod 38. The upper end of the sealing sleeve 37 and the lower end of the sealing support rod 38 are both provided with the same ball head structure. The upper end of the sealing sleeve 37 is movably connected to the bottom of the mounting base 3, and the lower end of the sealing support rod 38 is movably connected to the top of the support base 1. The top of the sealing support rod 38 extends movably into the sealing sleeve 37, and a through hole 40 is opened at the top of the sealing support rod 38. The sealing support rod 38 has a hollow structure. The buffer spring 39 and the ball valve 41 are both located inside the sealing support rod 38. One end of the buffer spring 39 is fixedly connected to the ball valve 41, and the other end of the buffer spring 39 is fixedly connected to the bottom of the inner wall of the sealing support rod 38. The ball valve 41 is movably connected to the inner wall of the sealing support rod 38. The cavity formed between the top of the sealing support rod 38 and the top of the inner wall of the sealing sleeve 37 is filled with damping fluid.

[0040] As shown in Figure 7, the pressure relief unit 34 includes a buffer base 42 and a shaped support column 47. The buffer base 42 is fixedly connected to the top center of the support base 1, and the guide column 43 is fixedly connected to the center of the buffer base 42. The shaped support column 47 and the second buffer spring 44 are both sleeved on the outer wall of the guide column 43, and the shaped support column 47 and the guide column 43 are movably connected. The two ends of the second buffer spring 44 are fixedly connected to the bottom of the outer wall of the shaped support column 47 and the guide column 43, respectively. Several sets of tooth blocks 48 are fixedly provided on the outer wall of the shaped support column 47. A drive groove 45 is opened in the buffer base 42, and a third drive gear 49 is movably provided in the drive groove 45. Two sets of auxiliary support members 46 are symmetrically arranged on both sides of the shaped support column 47, and the bottom of the auxiliary support member 46 extends movably into the buffer base 42. Several sets of tooth blocks 60 are provided on the side of the auxiliary support member 46 near the third drive gear 49. Both the first tooth block 48 and the second tooth block 60 mesh with the third drive gear 49.

[0041] As shown in Figure 8, the top of the auxiliary support 46 has a U-shaped structure. A buffer sleeve 54 is fixedly connected to the center of the top of the auxiliary support 46, and a buffer spring 57 is installed inside the buffer sleeve 54. The vertical section of the T-shaped part 50 is movably disposed inside the buffer sleeve 54 and fixedly connected to the buffer spring 57. Two sets of buffer sleeves 55 are symmetrically disposed on both sides of the buffer sleeve 54, and the buffer sleeves 55 are fixedly connected to the top of the auxiliary support 46. One end of the irregularly shaped connector 51 near the vertical section of the T-shaped part 50 is fixedly connected to the outer wall of the vertical section of the T-shaped part 50, and the other end of the irregularly shaped connector 51 near the buffer sleeve 55 is movably disposed. The auxiliary support member 46 is movably installed inside the buffer sleeve 55, which is filled with buffer solution 56. The top of the U-shaped groove of the auxiliary support member 46 is provided with a horizontal strip guide groove, and the bottom of the push rod 53 is movably installed in the guide groove. One end of the second telescopic rod 52 is movably connected to the push rod 53, and the other end is movably connected to the irregular connecting piece 51. The U-shaped vertical section of the auxiliary support member 46 is a hollow structure. The buffer spring 59 is installed inside the U-shaped vertical section of the auxiliary support member 46. One end of the second connecting rod 58 is fixedly connected to the T-shaped piece 50, and the other end is movably installed inside the U-shaped vertical section of the auxiliary support member 46 and fixedly connected to the buffer spring 59.

[0042] Specifically, due to the complexity of the construction environment and the fact that the mounting base 3 needs to bear most of the weight of the device, as well as the influence of various factors such as vibrations during drilling, the entire drilling measurement device is in a dynamic changing state. The pressure or swaying force from the mounting base 3 will first be initially dispersed by several sets of helical pneumatic springs 33, and then further buffered by the buffer 32. At this time, relative sliding will occur between the sealing sleeve 37 and the sealing support rod 38, and the damping fluid in the cavity formed between the top of the sealing support rod 38 and the top of the inner wall of the sealing sleeve 37 can first play a buffering role. Subsequently, the damping fluid will push the ball valve 41 through the through hole 40 into the inner cavity of the sealing support rod 38. During the process, due to the limited diameter of the through hole 40 and the counter-force exerted by the buffer spring 39 on the ball valve 41, the stretching speed between the sealing sleeve 37 and the sealing support rod 38 is limited, thus ensuring that there is no instantaneous tilt between the support base 1 and the mounting base 3. If the mounting base 3 is found to be not in a horizontal state and tilts in a certain direction, the air pump 36 can be used to adjust the air volume of the spiral pneumatic spring 33 at that location to make the mounting base 3 tend to be horizontal (it should be noted that this only plays an auxiliary role; when selecting the placement position of the device, it is still necessary to ensure that the ground is as level as possible). When the mounting base 3 suffers an accident or extreme situation (such as hydraulic...), (If the lifting device 4 fails after prolonged use), when the pressure exerted by the mounting base 3 on the buffer component 32 and the helical pneumatic spring 33 exceeds its buffering range, the mounting base 3 abuts against the irregular support column 47, pressing the irregular support column 47 down along the guide support column 43. At the same time, the buffer spring 2 44 is compressed and absorbs a portion of the kinetic energy. When several sets of toothed blocks 1 48 on the outer wall of the irregular support column 47 mesh with the drive gear 3 49, they drive the drive gear 3 49 to rotate. Simultaneously, several sets of toothed blocks 2 60 drive the auxiliary support component 46 to move upward until the T-shaped component 50 abuts against the bottom of the mounting base 3, thus providing support. Furthermore, the buffer spring 3 57 and the buffer spring 4 59 provide further buffering protection. Furthermore, when the T-shaped component 50 descends, it will cause the irregularly shaped connector 51 to move downward along the inner wall of the second buffer sleeve 55. The buffer solution 56 inside the second buffer sleeve 55 can slow down its displacement speed and push the push rod 53 towards the U-shaped vertical section of the auxiliary support component 46 through the second telescopic rod 52. After abutting against the U-shaped vertical section of the auxiliary support component 46, it will support the irregularly shaped connector 51, thereby avoiding the excessive concentration of the action point and causing damage to the device. This improves safety and enhances the stability of the drilling effect of the device. The setting of the force relief component 2 can decompose the vibration force generated during drilling to all corners of the device, changing the traditional rigid base contact and greatly improving safety.

[0043] This device for accurately measuring the borehole depth of contaminated soil sampling, used in environmental surveys, allows for simultaneous observation of borehole depth during drilling. Furthermore, the force-relieving component 2 distributes the vibration generated during drilling to various corners of the device, replacing the traditional rigid base contact and preventing damage caused by excessive concentration of force points. This improves safety and enhances the stability of the drilling process. The stabilizing component 12 limits the movement of the borehole measuring component 11, reducing continuous shaking during drilling and effectively ensuring the verticality of the borehole, thus improving both drilling and measurement accuracy.

[0044] Simultaneously, the hydraulic lifting device 4 and drive unit enable precise measurement of drilling depth, ensuring the accuracy and reliability of the measurement results. The stabilizing component 12 and support structure design within the device help maintain the stability of the measurement process, reducing interference caused by external environment or operational errors, and improving measurement stability and repeatability. Using the drive motor 5 and hydraulic lifting device 4, the operation during the measurement process is relatively automated, reducing the impact of human intervention and improving measurement efficiency and accuracy. The design of buffer and stabilizing components in the equipment helps protect the measuring device and operator safety, reducing the risk of accidents. The measurement method is simple and easy to implement, with a clear and straightforward operation process, suitable for various drilling scenarios, and possesses high practicality and applicability.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for accurate measurement of the depth of a borehole for sampling of contaminated soil for environmental investigations, characterized in that The utility model provides a kind of drilling and measuring device, including support base (1) and mounting seat (3), support base (1) and mounting seat (3) between being provided with force relief assembly (2);The top of mounting seat (3) is connected with support frame (6) by several groups of hydraulic lifting device (4), drive motor (5) is installed in the bottom of support frame (6), and the output shaft of drive motor (5) extends to the top of support frame (6) and is fixed with driving gear two (8), driving ring (13) is movably connected with support frame (6), and driving gear one (7) is sleeved on the outer wall of driving ring (13), driving sleeve (9) is movably arranged in driving ring (13), and drilling and measuring assembly (11) is connected by connecting support (10) with the driving sleeve (9), and stabilizing assembly (12) is installed on drilling and measuring assembly (11); The utility model provides a kind of drilling and measuring device, including support base (1) and mounting seat (3), support base (1) and mounting seat (3) between being provided with force relief assembly (2);The top of mounting seat (3) is connected with support frame (6) by several groups of hydraulic lifting device (4), drive motor (5) is installed in the bottom of support frame (6), and the output shaft of drive motor (5) extends to the top of support frame (6) and is fixed with driving gear two (8), driving ring (13) is movably connected with support frame (6), and driving gear one (7) is sleeved on the outer wall of driving ring (13), driving sleeve (9) is movably arranged in driving ring (13), and drilling and measuring assembly (11) is connected by connecting support (10) with the driving sleeve (9), and stabilizing assembly (12) is installed on drilling and measuring assembly (11); The utility model provides a kind of drilling and measuring device, including support base (1) and mounting seat (3), support base (1) and mounting seat (3) between being provided with force relief assembly (2);The top of mounting seat (3) is connected with support frame (6) by several groups of hydraulic lifting device (4), drive motor (5) is installed in the bottom of support frame (6), and the output shaft of drive motor (5) extends to the top of support frame (6) and is fixed with driving gear two (8), driving ring (13) is movably connected with support frame (6), and driving gear one (7) is sleeved on the outer wall of driving ring (13), driving sleeve (9) is movably arranged in driving ring (13), and drilling and measuring assembly (11) is connected by connecting support (10) with the driving sleeve (9), and stabilizing assembly (12) is installed on drilling and measuring assembly (11); The utility model provides a kind of drilling and measuring device, including support base (1) and mounting seat (3), support base (1) and mounting seat (3) between being provided with force relief assembly (2);The top of mounting seat (3) is connected with support frame (6) by several groups of hydraulic lifting device (4), drive motor (5) is installed in the bottom of support frame (6), and the output shaft of drive motor (5) extends to the top of support frame (6) and is fixed with driving gear two (8), driving ring (13) is movably connected with support frame (6), and driving gear one (7) is sleeved on the outer wall of driving ring (13), driving sleeve (9) is movably arranged in driving ring (13), and drilling and measuring assembly (11) is connected by connecting support (10) with the driving sleeve (9), and stabilizing assembly (12) is installed on drilling and measuring assembly (11); The stable assembly (12) comprises a support sleeve (26) movably connected with the support plate (22), a T-shaped threaded rod (24) movably arranged in the support sleeve (26) and threadedly connected with the support sleeve (26), a cavity (25) arranged in the T-shaped threaded rod (24), a T-shaped end of a T-shaped connecting rod (28) movably arranged in the cavity (25), the other end of the T-shaped connecting rod (28) abutting against the bottom of the inner wall of the support sleeve (26), a puncture head (31) fixedly connected with the bottom of the support sleeve (26), a through slot (27) formed in the outer wall of the support sleeve (26), an anchoring hook (29) movably connected with the top of the puncture head (31), one end of a first connecting rod (30) movably connected with the anchoring hook (29) and the other end movably connected with the T-shaped connecting rod (28).

2. The device for accurate measurement of drilling depth of contaminated soil sampling for environmental investigation according to claim 1, characterized in that, The driving gear one (7) is engaged with the driving gear two (8), the driving sleeve (9) and the driving ring (13) are connected through a shaft pin, the bottom of the rotating rod (15) movably passes through the driving sleeve (9) and extends to the bottom of the driving ring (13), the bottom of the rotating rod (15) is fixedly connected with the bottom of the inner wall of the driving ring (13), one end of the driving piece (14) is movably connected with the top of the rotating rod (15) and the other end is movably connected with the reciprocating connecting rod (16).

3. The device for accurate measurement of drilling depth of contaminated soil sampling for environmental investigation according to claim 1, characterized in that, The fixed plate (19) is located above the support plate (22) and is connected with the support plate (22) through the first telescopic rod (20), the fixed plate (19) is fixedly connected with the guide sleeve (21), the support plate (22) is movably connected with the guide sleeve (21), and the outer wall of the guide sleeve (21) is provided with a scale for measurement.

4. The device for accurate measurement of drilling depth of contaminated soil sampling for environmental investigation according to claim 1, characterized in that, The buffer (32) comprises a sealing sliding sleeve (37) and a sealing support rod (38), the upper end of the sealing sliding sleeve (37) and the lower end of the sealing support rod (38) are provided with the same ball head structure, the upper end of the sealing sliding sleeve (37) is movably connected with the bottom of the mounting seat (3), the lower end of the sealing support rod (38) is movably connected with the top of the support base (1), the top of the sealing support rod (38) movably extends into the sealing sliding sleeve (37), a through hole (40) is formed in the top of the sealing support rod (38), the sealing support rod (38) is a hollow structure, a buffer spring one (39) and a spherical valve (41) are arranged in the sealing support rod (38), one end of the buffer spring one (39) is fixedly connected with the spherical valve (41), the other end of the buffer spring one (39) is fixedly connected with the bottom of the inner wall of the sealing support rod (38), the spherical valve (41) is movably connected with the inner wall of the sealing support rod (38), and the cavity formed between the top of the sealing support rod (38) and the top of the inner wall of the sealing sliding sleeve (37) is filled with damping liquid.

5. The device for accurate measurement of drilling depth of contaminated soil sampling for environmental investigation according to claim 1, characterized in that, The pressure relief unit (34) comprises a buffer base (42) and a special-shaped support (47); the buffer base (42) is fixedly connected with the top center of the support base (1), a guide support (43) is fixedly connected with the center of the buffer base (42), the special-shaped support (47) and the buffer spring two (44) are sleeved on the outer wall of the guide support (43), and the special-shaped support (47) is movably connected with the guide support (43); the buffer spring two (44) is fixedly connected with the outer wall bottom of the special-shaped support (47) and the guide support (43) at both ends, respectively; a plurality of groups of tooth blocks one (48) are fixedly arranged on the outer wall of the special-shaped support (47); a driving groove (45) is formed in the buffer base (42), a driving gear three (49) is movably arranged in the driving groove (45), two groups of auxiliary supports (46) are symmetrically arranged on the two sides of the special-shaped support (47), and the bottom of the auxiliary support (46) movably extends into the buffer base (42); a plurality of groups of tooth blocks two (60) are arranged on the side of the auxiliary support (46) close to the driving gear three (49), and the tooth blocks one (48) and the tooth blocks two (60) are meshed with the driving gear three (49).

6. The device for accurate measurement of drilling depth of a contaminated soil sampling for environmental investigation according to claim 5, characterized in that, The top of the auxiliary support (46) is in U-shaped structure, a buffer sleeve one (54) is fixedly connected with the top center of the auxiliary support (46), and the buffer sleeve one (54) is provided with a buffer spring three (57) therein; a vertical segment of a T-shaped piece (50) is movably arranged in the buffer sleeve one (54) and fixedly connected with the buffer spring three (57); two groups of buffer sleeves two (55) are symmetrically arranged on the two sides of the buffer sleeve one (54) and fixedly connected with the top of the auxiliary support (46); one end of a special-shaped connecting piece (51) close to the vertical segment of the T-shaped piece (50) is fixedly connected with the outer wall of the vertical segment of the T-shaped piece (50), and the other end of the special-shaped connecting piece (51) close to the buffer sleeve two (55) is movably arranged in the buffer sleeve two (55); the buffer sleeve two (55) is filled with a buffer liquid (56); the top of the U-shaped groove of the auxiliary support (46) is provided with a horizontal strip-shaped guide groove, and the bottom of a push rod (53) is movably arranged in the guide groove; one end of a second telescopic rod (52) is movably connected with the push rod (53), and the other end is movably connected with the special-shaped connecting piece (51); the U-shaped vertical segment of the auxiliary support (46) is in hollow structure, a buffer spring four (59) is arranged in the U-shaped vertical segment of the auxiliary support (46), one end of a second connecting rod (58) is fixedly connected with the T-shaped piece (50), and the other end is movably arranged in the U-shaped vertical segment of the auxiliary support (46) and fixedly connected with the buffer spring four (59).

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