A ground subsidence stratification monitoring device

Abstract

The present application discloses a ground settlement stratification monitoring device, comprising a protective cover, a driving mechanism and a drill rod assembly; the top of the protective cover is used to install the monitoring device; the drill rod assembly is movably mounted on the protective cover through the upper portion, and the drill rod assembly can be unfolded; the driving mechanism is mounted on the lower portion of the protective cover and cooperates with the drill rod assembly; when the drill rod assembly is placed at the bottom of the marking hole, the drill rod assembly is adapted to be rotated and inserted into the soil at the bottom of the marking hole under the drive of the driving mechanism, and then the radial size of some rod sections is increased. The beneficial effects of the present application are as follows: when installing the ground settlement stratification monitoring device, the support stability of the drill rod assembly on the upper structure of the protective cover can be improved by the contact between the spiral teeth on the outside of the drill rod assembly and the soil. At the same time, after the drill rod assembly is fully inserted into the soil, the support stability of the drill rod assembly on the upper structure can be further improved by unfolding the drill rod assembly.

Description

Technical Field

[0001] The present application relates to the technical field of geological environment monitoring, and in particular to a ground subsidence stratification monitoring device. Background Art

[0002] The interior of the land is constantly changing due to the movement of the earth's plates and human activities. In most cases, the changes inside the ground are very slight and people cannot feel them. When the changes inside the ground are obvious, ground subsidence, earthquakes, etc. may occur, affecting people's daily lives and life safety. Therefore, geological monitoring plays an important reference role in preventing geological disasters.

[0003] Traditionally, static levels and stratification markers have been used to monitor ground subsidence. This allows for accurate understanding of ground subsidence, timely detection of abnormalities, and prompting for preventive measures to mitigate the impact. Existing stratification marker installation methods typically involve drilling a hole in the ground to be monitored. The marker is then inserted into the hole and connected to the bottom of the hole using a drill.

[0004] However, during installation, existing stratification markers are difficult to insert into the bottom of the hole due to the relatively deep hole (10 to 20 meters), which can easily lead to a loose connection between the insert and the bottom of the hole. This can cause the sinking height of the stratification marker to deviate from the actual settlement height of the geological layer. In particular, after being eroded by rainwater, the insert may become detached from the hole, further reducing the measurement accuracy of the stratification marker. Summary of the Invention

[0005] One of the purposes of this application is to provide a ground subsidence stratification monitoring device that can ensure that the stratification mark is firmly installed.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: a ground subsidence stratification monitoring device, comprising a protective cover, a driving mechanism and a drill rod assembly; the top of the protective cover is used to install the monitoring device; the drill rod assembly is movably installed on the protective cover through the upper part, and the drill rod assembly can be unfolded; the driving mechanism is installed at the lower part of the protective cover and cooperates with the drill rod assembly; when the drill rod assembly is placed at the bottom of the marking hole, the drill rod assembly is suitable for performing a self-fixing installation process including a first action and a second action in sequence under the drive of the driving mechanism; wherein, the first action: the drill rod assembly is in a tightened state and rotates under the drive of the driving mechanism, and then vertically inserts into the soil at the bottom of the marking hole through the spiral teeth on the side of the drill rod assembly; the second action: the drill rod assembly is completely inserted into the soil at the bottom of the marking hole and stops rotating, and then the drill rod assembly is unfolded with the radial size of part of the rod segment increased under the drive of the driving mechanism.

[0007] Preferably, the drill rod assembly includes a drill rod body and at least one group of plug plates; each group has a plurality of plug plates, and the plurality of plug plates in each group are hingedly mounted in a circumferential direction on a mounting opening provided on a side portion of the drill rod body; two adjacent groups of plug plates are spaced apart along the axial direction of the drill rod body; when performing a first action, the plug plates are suitable for being retracted into the corresponding mounting openings, and maintaining the retracted state and rotating with the drill rod body; when performing a second action, the drill rod body remains stationary, and then the plug plates are driven by the driving mechanism to rotate and expand around one end of the mounting opening toward the outside of the drill rod body.

[0008] Preferably, a first tooth portion is provided on the outer side of the drill rod body, and a second tooth portion is provided on the outer side of the insert plate; when the insert plate is retracted into the mounting opening, the first tooth portion and the second tooth portion are aligned to form the spiral teeth; when the insert plate is rotated and expanded, the second tooth portion is suitable for inserting into the soil outside the drill rod body.

[0009] Preferably, the driving mechanism includes a rotating device, a driving sleeve and a strut assembly; the rotating device is fixedly mounted on the protective cover, the driving sleeve is connected to the output end of the rotating device, and the drill rod body is connected to the driving sleeve through a clutch structure; the lower part of the strut assembly is cooperatively connected with the plug plate, and the upper part of the strut assembly is suitable for being connected to the driving sleeve through a traction structure; when performing a first action, the driving sleeve is rotated under the drive of the rotating device, and the clutch structure is in an engaged state, so that the drill rod assembly rotates synchronously with the driving sleeve; in this process, the strut assembly rotates synchronously with the driving sleeve through the connection of the plug plate; when performing a second action, the driving sleeve continues to rotate under the drive of the rotating device, and the clutch structure is in a disengaged state, so that the strut assembly moves axially under the drive of the traction structure, thereby driving the plug plate to rotate and unfold.

[0010] Preferably, an avoidance groove is provided at the lower part of the protective cover; the drill rod body is suitable for extending into the avoidance groove through the upper polished rod section, and cooperates with the avoidance groove through a baffle provided at the top; when the drill rod assembly is placed at the bottom of the marking hole, the bottom of the drill rod body is against the bottom of the marking hole, so that the baffle is against the upper end of the avoidance groove; when the first action is performed, the first action includes a first process and a second process; wherein, the first process: the drill rod body is rotated under the drive of the drive sleeve, and then the drill rod body is axially inserted into the soil through the spiral teeth until the protective cover moves down synchronously with the drill rod body to contact the bottom of the marking hole; the second process: the drill rod body continues to move down under the drive of the drive sleeve until the baffle moves down along the upper end of the avoidance groove to against the lower end of the avoidance groove; during this process, the drill rod body slides vertically relative to the drive sleeve, so that the clutch structure moves from the engaged state to the disengaged state.

[0011] Preferably, the clutch structure includes a clutch assembly arranged on the drill rod body, and a clutch groove vertically arranged on the outside of the drive sleeve; when performing the first process, the clutch assembly is located at the upper end of the clutch groove and engages with each other in the circumferential direction, so that the drill rod assembly rotates synchronously with the drive sleeve; when performing the second process, the clutch assembly moves vertically downward relative to the clutch groove until the clutch assembly and the clutch groove are disengaged in the circumferential direction.

[0012] Preferably, there are multiple corresponding clutch assemblies and clutch grooves; the clutch assembly includes a clutch block elastically slidably installed on the drill rod body along the radial direction; the clutch groove includes a first groove section and a second groove section, and one side of the second groove section is an inclined surface; when the second process is performed, the clutch block is suitable for sliding along the first groove section to the second groove section, and then when the drive sleeve rotates, the second groove section is suitable for cooperating with the clutch block through the inclined surface, so that the clutch block is disengaged from the clutch groove.

[0013] Preferably, the support rod assembly includes a support rod and at least one set of hinged plates; the upper part of the support rod is connected to the drive sleeve through the traction structure; the lower part of the support rod is hinged to the inner middle part of the plug plate through the hinged plate; when performing the second action, the support rod is suitable for moving vertically downward under the drive of the traction structure, and then driving the plug plate to rotate and unfold downward around the lower end of the mounting port through the hinged plate.

[0014] Preferably, the traction structure includes a traction assembly arranged on the support rod and a traction groove arranged on the inner side of the driving sleeve; the traction groove includes a spiral section arranged along the axial spiral, and a locking section connected to the lower end of the spiral section and arranged horizontally along the circumferential direction; when the drill rod assembly is placed at the bottom of the marking hole, the traction assembly is located above the spiral section; when the first action is completed, the traction assembly moves vertically downward relative to the driving sleeve to the upper end of the spiral section; the second action includes a third process and a fourth process; wherein, in the third process: the driving sleeve is driven by the rotating device to rotate so that the traction assembly slides relative to the spiral section, thereby driving the support rod to move vertically downward and driving the plug plate to expand through the hinged plate; the fourth process: the driving sleeve rotates to the locking section to cooperate with the traction assembly, so that the axial movement of the support rod is locked.

[0015] Preferably, the central angle corresponding to the arc length of the traction groove along the axial projection is less than 360°, so that an unlocking zone is formed between the two ends of the traction groove in the axial projection; when the plug plate needs to be retracted, the drive sleeve is suitable for rotating to drive the traction assembly to pass through the locking section and be located in the unlocking zone, so that the axial projection of the traction assembly is aligned with the upper end of the spiral section; at this time, the clutch assembly in the clutch structure is displaced into the second groove section of the clutch groove.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] (1) When installing a ground subsidence stratification monitoring device, the contact between the spiral teeth on the outside of the drill rod assembly and the soil can improve the support stability of the drill rod assembly on the upper structure of the protective cover. At the same time, after the drill rod assembly is fully inserted into the soil, the support stability of the drill rod assembly on the upper structure can be further improved by expanding the drill rod assembly.

[0018] (2) Compared with the traditional multi-drive source method, since the marking hole is deeper and the internal environment is more complex and humid, the insertion and deployment of the drill rod assembly are realized respectively through a single drive mechanism combined with related mechanical structures, which can effectively improve the use stability of the ground subsidence stratification monitoring device of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the local structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the exploded state of the local structure of the present invention.

[0021] Figure 3 It is a partial cross-sectional structural schematic diagram of the protective cover in the present invention.

[0022] Figure 4 Schematic diagram of the exploded state of the drill rod assembly in the present invention.

[0023] Figure 5 It is a structural schematic diagram of the plug board in the present invention.

[0024] Figure 6 It is a schematic diagram of the installation structure of the clutch assembly in the present invention.

[0025] Figure 7 Schematic diagram of the decomposed state of the driving mechanism in the present invention.

[0026] Figure 8 It is a partial structural diagram of the driving sleeve in the present invention.

[0027] Figure 9 It is a schematic diagram of part of the internal structure of the driving sleeve in the present invention.

[0028] Figure 10 Schematic diagram of the exploded state of the support rod assembly in the present invention.

[0029] Figure 11 Schematic diagram of the installation structure of the traction assembly in the present invention.

[0030] Figure 12 Schematic diagram of the local state of the present invention when it is just placed at the bottom of the marking hole.

[0031] Figure 13 The present invention Figure 12 A local enlarged schematic diagram of point A in the middle.

[0032] Figure 14 This is a schematic diagram of a local state when the drill rod assembly of the present invention is partially inserted into the bottom of the marking hole.

[0033] Figure 15 This is a schematic diagram of a partial state when the drill rod assembly of the present invention is fully inserted into the bottom of the marking hole.

[0034] Figure 16 For the present invention Figure 15 A partial enlarged schematic diagram of point B in the middle.

[0035] Figure 17 It is a schematic diagram of the local state when the inserting plate of the present invention is unfolded and inserted into the soil at the bottom of the marked hole.

[0036] Figure 18 For the present invention Figure 17 A partial enlarged schematic diagram of point C in the middle.

[0037] Figure 19 This is a schematic diagram of the state when the traction component is disengaged from the locking groove in the present invention.

[0038] In the figure: protective cover 100, avoidance groove 110, installation area 120, drill rod assembly 2, spiral teeth 200, drill rod body 21, installation port 210, cone head 211, first tooth portion 212, polished rod section 213, baffle 214, first installation groove 215, plug plate 22, plate body 221, second tooth portion 222, hinge seat 223, clutch assembly 23, clutch block 231, first spring 232, drive mechanism 3, rotating device 31, drive sleeve 32, first groove section 321, second groove section 322, spiral section 323, locking section 324, support rod assembly 33, support rod 331, second installation groove 3310, hinge plate 332, traction assembly 333, traction block 3331, second spring 3332, third spring 334, mark hole 400. DETAILED DESCRIPTION

[0039] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0041] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0042] One of the preferred embodiments of this application is as follows: Figure 1 and Figure 2 As shown, a ground subsidence stratification monitoring device includes a stratification marker and a monitoring device. The stratification marker includes a protective cover 100, a drive mechanism 3, and a drill rod assembly 2. The top of the protective cover 100 is used to mount the monitoring device. The drill rod assembly 2 is mounted to the protective cover 100 through its upper portion and is deployable. The drive mechanism 3 is mounted in the lower portion of the protective cover 100 and cooperates with the drill rod assembly 2.

[0043] When it is necessary to monitor the stratification of ground subsidence in a specific area, a mark hole 400 needs to be drilled in the ground first; then the drill rod assembly 2 and the protective cover 100 are placed at the bottom of the mark hole 400; then the rod assembly 2 can be driven by the driving mechanism 3 to sequentially perform a self-fixing installation process including a first action and a second action. Among them, the first action: the drill rod assembly 2 is in a tightened state and rotates under the drive of the driving mechanism 3, and then the spiral teeth 200 on the side of the drill rod assembly 2 are vertically inserted into the soil at the bottom of the mark hole 400, and then the contact between the spiral teeth 200 and the soil ensures the support stability of the drill rod assembly 2 on the protective cover 100. The second action: after the drill rod assembly 2 is fully inserted into the soil at the bottom of the mark hole 400, it stops rotating. Then, the drill rod assembly 2 can be driven by the driving mechanism 3 to expand the radial size of some rod sections to further increase the support stability of the drill rod assembly 2 on the protective cover 100. Finally, the monitoring device is installed on the protective cover 100 to complete the overall installation of the present application.

[0044] It is understandable that, since the depth of the marking hole 400 is relatively deep (generally more than 10 m), when performing ground subsidence monitoring, the length of the layered marker is generally similar to the depth of the marking hole 400. Therefore, if the connection structure between the drill rod assembly 2 at the bottom of the layered marker and the soil at the bottom of the marking hole 400 is not firm, the layered marker will tilt and lean against the side of the marking hole 400, which will cause inaccurate ground subsidence monitoring results.

[0045] Therefore, when the present application is installing a layered target, the spiral rotation of the drill rod assembly 2 can make the drill rod assembly 2 fully engage with the soil by relying on the spiral teeth 200 on the side, which can effectively improve the firmness of the connection between the drill rod assembly 2 and the soil. In addition, in order to further improve the support firmness of the drill rod assembly 2, after the drill rod assembly 2 completes the insertion of the soil, the radial size of the partial rod segments of the drill rod assembly 2 can be increased and expanded under the drive of the driving mechanism 3 to increase the support area and support strength of the drill rod assembly 2, so as to further improve the support stability of the drill rod assembly 2 for the layered target.

[0046] It can also be understood that the specific structure and working principle of the monitoring device are well known to those skilled in the art. The monitoring device generally includes a static level and a satellite signal receiver.

[0047] In this embodiment, Figure 4 、 Figure 5 、 Figure 12 、 Figure 14 、 Figure 15 and Figure 17As shown, the drill rod assembly 2 includes a drill rod body 21 and at least one group of insert plates 22. Each group has multiple insert plates 22, and the multiple insert plates 22 in each group are hingedly mounted in the circumferential direction to the mounting opening 210 provided on the side of the drill rod body 21; the two adjacent groups of insert plates 22 are spaced apart along the axial direction of the drill rod body 21. When performing the first action, the insert plates 22 can be retracted into the corresponding mounting opening 210 so that the insert plates 22 and the drill rod body 21 are flush to form a tightened state with a complete cylindrical structure, and the insert plates 22 can remain in the retracted state and rotate together with the drill rod body 21, thereby stably inserting the drill rod assembly 2 into the soil through the spiral groove 200 formed by the interaction between the insert plates 22 and the drill rod body 21. When performing the second action, the drill rod body 21 can remain stationary, and then the insert plate 22 is driven by the driving mechanism 3 to rotate and expand around one end of the installation port 210 toward the outside of the drill rod body 21, so that the radial size of the rod segment of the drill rod assembly 2 corresponding to the insert plate 22 is increased, thereby increasing the contact area between the rod segment and the soil to improve the support stability of the drill rod assembly 2 on the layered target.

[0048] It is understandable that the specific number of the plugboards 22 can be selected according to the actual needs of those skilled in the art; for example Figure 4 As shown, there are two groups of plug boards 22. At the same time, the specific number of plug boards 22 included in each group can also be selected according to the actual needs of those skilled in the art; for example Figure 4 As shown, the number of the interposers 22 included in each group is four.

[0049] Specifically, such as Figure 1 、 Figure 4 and Figure 5 As shown, a first tooth portion 212 is provided on the outside of the drill rod body 21, and the insert plate 22 includes a strip-shaped plate body 221 and a second tooth portion 222 provided on the outside of the plate body 221. When the insert plate 22 is retracted into the mounting opening 210, the first tooth portion 212 and the second tooth portion 222 can be aligned to form a spiral tooth 200. When the insert plate 22 is rotated and expanded, the second tooth portion 222 can be rotated and expanded with the plate body 221 to be inserted into the soil outside the drill rod body 21. The second tooth portion 222 can then be pressed against the soil to further improve the support stability of the drill rod assembly 2 for the layered target.

[0050] In this embodiment, Figure 1 、 Figure 4 、 Figure 12 、 Figure 14 、 Figure 15 and Figure 17As shown, a cone head 211 is provided at the bottom of the drill rod body 1. Thus, when the drill rod assembly 2 is inserted into the soil, the cone head 211 can be easily inserted into the moist soil to ensure that the spiral teeth 200 on the outside of the drill rod assembly 2 can smoothly contact the soil at the bottom of the mark hole 400, and as the drill rod assembly 2 rotates, the entire spiral teeth 200 are completely immersed in the soil.

[0051] One of the embodiments of this application, such as Figure 7 、 Figure 12 、 Figure 14 、 Figure 15 and Figure 17 As shown, the drive mechanism 3 includes a rotating device 31, a drive sleeve 32, and a strut assembly 33. The rotating device 31 is fixedly mounted in the mounting area 120 provided within the protective cover 100. The drive sleeve 32 is connected to the output end of the rotating device 31, and can be driven by the rotating device 31 to rotate the drive sleeve 32. The drill rod body 21 and the drive sleeve 32 are connected via a clutch mechanism. Simultaneously, the lower portion of the strut assembly 33 is matingly connected to the insert plate 22, and the upper portion of the strut assembly 33 is connected to the drive sleeve 32 via a traction mechanism. During the first action, the drive sleeve 32 can rotate under the drive of the rotating device 31. At this time, the clutch structure is in a locked state, so that the drill rod assembly 2 can rotate synchronously with the drive sleeve 32 in the state of the plug plate 22 being retracted, and then the helical teeth 200 on the side of the drill rod assembly 2 are spirally inserted into the soil at the bottom of the marking hole 400 and are tightly connected. During this process, since the support rod assembly 33 is connected to the plug plate 22, the support rod assembly 33 can rotate synchronously with the drive sleeve 32 through the plug plate 22, that is, the support rod assembly 33 and the drill rod assembly 2 remain relatively stationary. At the end of the first action, the clutch structure just changes from the locked state to the disengaged state. Then, during the second action, the drive sleeve 32 continues to rotate under the drive of the rotating device 31. Since the clutch structure is in a disengaged state, the drill rod assembly 2 and the drive sleeve 32 are disengaged and remain stationary. At this time, the drive sleeve 32 can drive the support rod assembly 33 to move axially through the traction structure, and then can drive the plug plate 22 to rotate and expand.

[0052] It is understandable that, for the above-mentioned first action and second action, different drive sources can be used to drive respectively. However, due to the deeper depth of the mark hole 400, the humid environment at the bottom of the mark hole 400 is not easy to use for a long time. Therefore, if different actions are realized respectively by multiple drive sources, the failure rate of the entire ground subsidence stratification monitoring device may be increased. Therefore, in the present embodiment, the rotating device 31 is used as a single drive source, and is connected to the drill rod body 21 and the insert plate 22 respectively by different mechanical structures, so as to effectively reduce the failure rate of the ground subsidence stratification monitoring device due to the geological environment. At the same time, the diameter of the mark hole 400 is also not easy to be too large. An oversized mark hole 400 is not only difficult to dig, but also easily collapses. Therefore, the internal installation space of the protective cover 100 adapted to the size of the mark hole 400 is limited, and multiple drive sources are inconvenient to install and easily interfere with each other.

[0053] It can also be understood that the specific structure and working principle of the rotating device 31 are well known to those skilled in the art. Common rotating devices 31 include motors, rotating hydraulic cylinders, rotating air cylinders, and the like.

[0054] In this embodiment, Figure 3 、 Figure 4 、 Figure 12 、 Figure 14 and Figure 15 As shown, the lower portion of the protective cover 100 is provided with an escape groove 110. The drill rod body 21 includes, from top to bottom, a baffle 214, a polished rod segment 213, a rod segment corresponding to the first tooth portion 212, and a cone head 211. The drill rod body 21 can extend into the escape groove 110 through the upper polished rod segment 213 and cooperate with the escape groove 110 through the baffle 214 provided on the top.

[0055] When the drill rod assembly 2 is placed at the bottom of the mark hole 400, Figure 12 and Figure 13 As shown, the cone head 211 at the bottom of the drill rod body 21 abuts against the soil at the bottom of the mark hole 400. At this time, the protective cover 100 can make the upper end of the avoidance groove 110 abut against the baffle 214 at the top of the drill rod body 21 under the action of gravity.

[0056] When the first action is performed, the first action includes a first process and a second process.

[0057] Among them, the first process, such as Figure 14As shown, the drill rod body 21 rotates under the drive of the drive sleeve 32, and the drill rod body 21 and the retracted insert plate 22 can be axially inserted into the soil through the formed spiral teeth 200. During the axial insertion of the drill rod assembly 2 into the soil, the protective cover 100, under its own gravity, will keep the upper end of the avoidance groove 110 against the baffle 214 and move vertically downward synchronously with the drill rod assembly 2 until the lower end of the protective cover 100 contacts the soil at the bottom of the marking hole 400.

[0058] Among them, the second process, such as Figure 15 and Figure 16 As shown, the drill rod body 21 continues to rotate under the drive of the drive sleeve 32, and then continues to axially insert into the soil through the spiral teeth 200 formed with the insert plate 22 to achieve downward movement. During this process, the lower end of the protective cover 100 contacts the soil at the bottom of the marking hole 400, making it impossible for the protective cover 100 to move vertically downward. Furthermore, during the vertical downward movement of the drill rod body 21, the baffle 214 at its top can move downward along the upper end of the avoidance groove 110 until it contacts the lower end of the avoidance groove 110, allowing the protective cover 100 to maintain a stable force balance under the upward support force of the soil at the bottom of the marking hole 400 and the downward squeezing force of the baffle 214.

[0059] It should be noted that during the first process, the clutch structure remains in an engaged state throughout the first process because there is no positional change between the drill rod body 21 and the drive sleeve 32. During the second process, due to the connection between the drive sleeve 32 and the rotating device 31, the vertical position between the drive sleeve 32 and the drill rod body 21 changes, and the clutch structure between the drive sleeve 32 and the drill rod body 21 can change from an engaged state to a disengaged state as the position changes.

[0060] There are many specific structures of the clutch structure. For ease of understanding, the following is a detailed description of one of the structures. Figure 4 、 Figure 6 、 Figure 8 、 Figure 13 and Figure 16 As shown, the clutch structure includes a clutch assembly 23 provided on the drill rod body 21, and a clutch groove vertically provided on the outside of the drive sleeve 32. When the first process is performed, as shown in FIG. Figure 13 As shown, the clutch assembly 23 is located at the upper end of the clutch groove and engages with the clutch groove along the circumferential direction so that the drill rod assembly 2 can rotate synchronously with the drive sleeve 32. When the second process is performed, as shown in FIG. Figure 16 As shown, the clutch assembly 23 moves vertically downward synchronously with the drill rod body 21, that is, the clutch assembly 23 moves vertically downward relative to the clutch groove until the clutch assembly 23 and the clutch groove are disengaged in the circumferential direction.

[0061] It is understandable that the clutch assembly 23 may also be provided with a drive sleeve 32, and the clutch groove is provided on the drill rod body 21. But for the convenience of the installation of the clutch assembly 23, the clutch assembly 23 is preferably provided on the baffle 214 position at the drill rod body 21 top.

[0062] At the same time, in order to improve the driving stability between the driving sleeve 32 and the drill rod assembly 2, the clutch assembly 23 can be set to multiple, and the clutch grooves can be set to multiple; the multiple clutch assemblies 23 and the clutch grooves can be set at equal intervals along the circumferential direction; for example Figure 6 As shown, there are four clutch assemblies 23 and four clutch slots.

[0063] Specifically, such as Figure 6 As shown, the inner side of the baffle 214 of the drill rod body 21 is provided with a plurality of radially extending first mounting grooves 215 along the circumferential direction. The clutch assembly 23 is installed in the corresponding first mounting groove 215; the clutch assembly 23 includes a clutch block 231 and a first spring 232; the clutch block 231 is elastically slidably installed in the first mounting groove 215 by the first spring 232. Figure 8 As shown, the clutch slot includes a first slot section 321 and a second slot section 322 from top to bottom, and one side of the second slot section 322 is an inclined surface.

[0064] When the first process is carried out, Figure 13 As shown, the clutch block 231 extends into the upper end of the first slot section 321 under the elastic force of the first spring 232, so that the first slot section 321 and the clutch block 231 are engaged in the circumferential direction; and then when the driving sleeve 32 rotates, the side wall of the first slot section 321 and the clutch block 231 can be abutted against each other to drive the drill rod assembly 2 to rotate synchronously.

[0065] When the second process is carried out, Figure 16 and Figure 18 As shown, as the drill rod body 21 moves vertically downward relative to the protective cover 100, the clutch block 231 can slide relative to the drive sleeve 32 along the first groove section 321 to the second groove section 322. Then, when the drive sleeve 32 rotates, the second groove section 322 can cooperate with the clutch block 231 via the inclined surface, so that the clutch block 231 can compress the first spring 232 and shrink into the first mounting groove 215, thereby achieving the circumferential disengagement of the clutch block 231 and the clutch groove.

[0066] One of the embodiments of this application, such as Figure 10 、 Figure 12 、 Figure 14 、 Figure 15 and Figure 17As shown, the support rod assembly 33 includes a support rod 331 and at least one set of hinged plates 332. The number of sets of hinged plates 332 corresponds to the number of sets of insert plates 22, and the number of hinged plates 332 in each set corresponds to the number of insert plates 22 in each set. The upper portion of the support rod 331 is connected to the drive sleeve 32 via a traction structure, while the lower portion of the support rod 331 is hingedly connected to the inner center portion of the insert plate 22 via the hinged plate 332. During the first movement, the insert plate 22 can be maintained in a retracted position by the hinged plate 332, driven by the support rod 331. During the second movement, because the drive sleeve 32 is circumferentially disengaged from the drill rod body 21, the support rod 331 can be driven vertically downward by the traction structure as the drive sleeve 32 rotates. This allows the hinged plate 332 to rotate and unfold the insert plate 22 around one end of the mounting opening 210.

[0067] In this embodiment, there are multiple ways to deploy the inserting plate 22, including but not limited to the following two.

[0068] Expansion method 1: Figure 5 and Figure 17 As shown, the inserting plate 22 is hinged to the inner lower end of the mounting opening 210 through the hinge seat 223 fixed at the inner lower end of the plate body 221, so that the inserting plate 22 can be rotated downward around the lower end of the mounting opening 210 under the drive of the support rod 331.

[0069] Deployment method 2: The plugboard 22 is hinged to the inner upper end of the installation opening 210 through the hinge seat 223 fixed at the inner upper end of the plate body 221, and then the plugboard 22 can be rotated upward around the upper end of the installation opening 210 under the drive of the support rod 331 to unfold.

[0070] It is understood that both of the above-mentioned deployment methods can meet the requirements of use. For the above-mentioned deployment method 1, since the deployment direction of the plug plate 22 is downward, when the drill rod assembly 2 performs the first spiral downward movement, the soil around the spiral teeth 200 exerts a pressure on the plug plate 22, which can drive the plug plate 22 to remain in a retracted state. For the above-mentioned deployment method 2, when the plug plate 22 is deployed upward, the soil exerts a pressure on the plug plate 22 downward, which can drive the drill rod assembly 2 to continue to press the protective cover 100, thereby further improving the installation stability of the layered target. For the convenience of the subsequent description, the above-mentioned deployment method 1 is preferably adopted in this embodiment.

[0071] In this embodiment, when performing the first action, there are various specific structures in which the inserting plate 22 is kept retracted under the driving of the support rod 331, including but not limited to the following three.

[0072] Structure 1: Figure 10 、 Figure 12 、 Figure 14 and Figure 15 As shown, the support rod 331 is vertically slidably connected to the drill rod body 21 through its lower portion, and a third spring 334 is sleeved on the lower portion of the support rod 331. The two ends of the third spring 334 are respectively connected to the support rod 331 and the drill rod body 21. When performing a first action, the third spring 334 is in a compressed state. Under the elastic force of the third spring 334, the support rod 331 can be pulled upward to drive the hinge plate 332 to pull the plug plate 22 to maintain the retracted state. When performing a second action, the support rod 331 is driven by the traction structure to compress the third spring 334 and move vertically downward.

[0073] Structure 2: Magnetic engagement between the insert plate 22 and the drill rod body 21. During the first action, the insert plate 22 can be held together by magnetic attraction with the drill rod body 21. When the drill rod assembly 2 is inserted into the ground via the spiral teeth 200, the soil's squeezing force on the insert plate 22 ensures that the insert plate 22 and the drill rod body 21 are retracted. During the second action, the insert plate 22 can be disengaged from the magnetic attraction and deployed under the drive of the support rod 331.

[0074] Structure 3: The support rod 331 and the drive sleeve 32 can be engaged by a retaining structure. During the first operation, the retaining structure remains engaged, keeping the insert plate 22 and the drill rod body 21 retracted. During the second operation, the support rod 331 and the drive sleeve 32 slide vertically relative to each other, disengaging the retaining structure. During this process, the insert plate 22 remains retracted against the drill rod body 21 due to the compressive force of the surrounding soil. During the second operation, the support rod 331, driven by the traction structure, drives the insert plate 22 to rotate and expand through the hinge plate 332.

[0075] It is understandable that the above three structures can all meet the usage requirements; however, in order to facilitate the description of subsequent contents, this embodiment preferably adopts the above structure 1.

[0076] It should be noted that there are many specific structures of the traction structure. For the sake of ease of understanding, a detailed description will be given below using one of the structures.

[0077] One of the embodiments of this application, such as Figures 9 to 11 As shown, the traction structure includes a traction assembly 333 provided on the support rod 331, and a traction groove provided on the inner side of the drive sleeve 32. The traction groove includes a spiral segment 323 arranged in an axial spiral direction, and a locking segment 324 connected to the lower end of the spiral segment 323 and arranged horizontally along the circumferential direction.

[0078] When the drill rod assembly 2 is placed at the bottom of the mark hole 400, Figure 13As shown, the traction assembly 333 is located above the spiral section 323. At this time, the distance between the traction assembly 333 and the upper end of the spiral section 323 is equal to the distance between the clutch assembly 23 and the second groove section 322, which is Y.

[0079] When the first action is completed, Figure 16 As shown, the clutch assembly 23 moves down the distance Y relative to the clutch groove to the second groove section 322. During this process, the traction assembly 333 moves vertically down the distance Y relative to the drive sleeve 32 to the upper end of the spiral section 323.

[0080] The second action specifically includes a third process and a fourth process.

[0081] Among them, the third process, such as Figure 18 As shown, the drive sleeve 32 is driven by the rotating device 31 to rotate, so that the traction assembly 333 slides along the spiral section 323. Since the drill rod body 21 is fastened to the soil, the support rod 331 is connected to the drill rod body 21 through the plug plate 22, so that the rotation of the support rod 331 is restricted; and the sliding of the traction assembly 333 along the spiral section 323 can only drive the support rod 331 to move vertically downward. During the downward movement of the support rod 331, the plug plate 22 can be driven to expand through the hinged plate 332.

[0082] The fourth process, such as Figure 18 As shown, after the traction assembly 333 slides to the lower end of the spiral section 323, as the drive sleeve 32 continues to rotate, the traction assembly 333 can slide into the locking section 324. Since the locking end 324 is arranged horizontally in the circumferential direction, the traction assembly 333 engages with the locking section 324 in the vertical direction, thereby locking the axial movement of the support rod 331, that is, locking the expanded state of the plugboard 22.

[0083] It is understandable that the traction groove can also be provided on the outside of the support rod 331, and the traction assembly 333 is correspondingly provided on the inside of the drive sleeve 32. For the convenience of subsequent description, this embodiment is described as an example in which the traction groove is provided on the inside of the drive sleeve 32.

[0084] In this embodiment, Figure 11 As shown, a radially extending second mounting groove 3310 is provided on the outer side of the upper end of the support rod 331. The traction assembly 333 is installed in the second mounting groove 3310; the traction assembly 333 includes a traction block 3331 and a second spring 3332; the traction block 3331 is elastically slidably installed in the second mounting groove 3310 by the second spring 3332.

[0085] When performing the second action, such as Figure 16 and Figure 18As shown, the traction block 3331 can extend into the spiral section 323 through the front end under the elastic force of the second spring 3332; then, during the rotation of the drive sleeve 32, the traction block 3331 can slide relatively along the spiral section 323 to drive the support rod 331 to move axially; until the traction block 3331 slides into the locking section 324.

[0086] It is understandable that, when performing the first action, there are various forms of cooperation between the traction assembly 333 and the drive sleeve 32 .

[0087] Matching form 1, such as Figure 13 and Figure 16 As shown, during the first process, the driving sleeve 32 and the support rod 331 remain relatively stationary. At this time, the traction block 3331 is squeezed by the inner wall of the driving sleeve 32, causing the traction block 3331 to compress the second spring 3332 and retract into the second mounting groove 3310. Therefore, during the second process, the traction block 3331 can maintain the retracted state of compressing the second spring 3332 and move vertically downward along the inner side of the driving sleeve 32 until the traction block 3331 is aligned with the upper end of the spiral segment 323. At this time, the traction block 3331 can extend into the spiral segment 323 under the elastic force of the second spring 3332.

[0088] In the second embodiment, the traction groove further includes an axially vertical movable groove; the lower end of the movable groove is connected to the upper end of the spiral segment 323. During the first movement, the traction block 3331, under the elastic force of the second spring 3332, extends into the movable groove and moves vertically downward along the movable groove until the traction block 3331 is located at the upper end of the spiral segment 323.

[0089] In this embodiment, Figure 9 and Figure 19As shown, the central angle corresponding to the arc length of the traction groove along the axial projection is less than 360°, so that an unlocking zone with an arc length of X is formed between the two ends of the traction groove in the axial projection. When the drill rod assembly 2 needs to be disassembled to retract the insert plate 22, the drive sleeve 32 can be rotated to drive the traction block 3331 of the traction assembly 333 to cross the inclined surface at the end of the locking section 324 to the unlocking zone, so that the traction block 3331 along the axial projection is aligned with the upper end of the spiral section 323; at this time, the clutch block 231 of the clutch assembly 23 is exactly located in the second groove section 322. Subsequently, the drive sleeve 32 is driven to rotate in the opposite direction by the rotating device 31. At this time, the clutch block 231 is engaged with the non-inclined surface on the other side of the second groove section 322, thereby driving the drill rod body 21 and the insert plate 22 to rotate in the expanded state, thereby turning and loosening the soil around the drill rod assembly 2 so that the drill rod assembly 2 can easily be pulled out of the bottom soil of the mark hole 400. As the drill rod body 21 and the insert plate 22 rotate while remaining in the extended position, the support rod 331 is connected to the insert plate 22 via the hinge plate 332, allowing the support rod 331 to rotate synchronously with the drive sleeve 32. This means that the traction block 3331 remains relatively stationary in the unlocking zone relative to the drive sleeve 32 along the circumferential direction. Furthermore, as the soil loosens, the support rod 331 can be moved vertically upward under the elastic force of the third spring 334, thereby driving the insert plate 22 through the hinge plate 332 to rotate toward the mounting opening 210.

[0090] It is understandable that the central angle corresponding to the arc length of the traction groove along the axial projection is generally 240° to 330°; then the value of X is (π / 12)D to (π / 3)D, where D is the inner diameter of the drive sleeve 32.

[0091] It can also be understood that if the traction assembly 333 and the drive sleeve 32 adopt the above-mentioned matching form 1, the upper side wall of the upper end of the spiral segment 323 is a sloped surface, and then after the insert plate 22 is retracted, the drill rod assembly 2 is squeezed into the protective cover 100, that is, when the baffle 214 slides along the lower end of the avoidance groove 110 to the upper end, the traction block 3331 can elastically contract along the sloped surface of the upper end of the spiral segment 323 to slide to the corresponding position. If the traction assembly 333 and the drive sleeve 32 adopt the above-mentioned matching form 2, when the drill rod assembly 2 is squeezed into the protective cover 100, that is, when the baffle 214 slides along the lower end of the avoidance groove 110 to the upper end, the traction block 3331 can slide along the movable groove to the corresponding position.

[0092] It should be known that Figures 14 to 19 The direction indicated by the dotted arrow is the movement direction of the corresponding component.

[0093] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A ground subsidence stratification monitoring device, characterized in that: include: protective cover; The top of the protective cover is used to install a monitoring device; Drill rod assembly; The drill rod assembly is movably mounted on the protective cover through its upper portion, and the drill rod assembly can be unfolded; as well as Driving mechanism; the driving mechanism is installed at the lower part of the protective cover and cooperates with the drill rod assembly; When the drill rod assembly is placed at the bottom of the marking hole, the drill rod assembly is adapted to sequentially perform a self-fixing installation process including a first action and a second action under the drive of the driving mechanism; The first action is as follows: the drill rod assembly is rotated in a tightened state under the driving of the driving mechanism, and then vertically inserted into the soil at the bottom of the marking hole through the spiral teeth on the side of the drill rod assembly; Second action: the drill rod assembly is completely inserted into the soil at the bottom of the marked hole and stops rotating, and then the drill rod assembly is driven by the driving mechanism to expand the radial size of a portion of the rod segment; The drill rod assembly includes a drill rod body and at least one set of inserts; each set of inserts has a plurality of inserts, and the plurality of inserts in each set are hingedly mounted on the mounting openings provided on the side of the drill rod body along the circumferential direction; and two adjacent sets of inserts are spaced apart along the axial direction of the drill rod body; When performing the first action, the inserting plate is adapted to be retracted into the corresponding mounting opening and rotates along with the drill rod body while maintaining the retracted state; When the second action is performed, the drill rod body remains stationary, and then the inserting plate rotates and expands around one end of the mounting opening toward the outside of the drill rod body under the drive of the driving mechanism; The driving mechanism comprises: Rotating device; the rotating device is fixedly installed on the protective cover, Drive sleeve; the drive sleeve is connected to the output end of the rotating device, and the drill rod body is connected to the drive sleeve via a clutch structure; and A support rod assembly; the lower portion of the support rod assembly is cooperatively connected to the insert plate, and the upper portion of the support rod assembly is adapted to be connected to the drive sleeve via a traction structure; When the first action is performed, the driving sleeve rotates under the drive of the rotating device, and the clutch structure is in a locked state, so that the drill rod assembly rotates synchronously with the driving sleeve; during this process, the support rod assembly rotates synchronously with the driving sleeve through the connection with the plug plate; When performing the second action, the driving sleeve continues to rotate under the drive of the rotating device, and the clutch structure is in a disengaged state, so that the support rod assembly moves axially under the drive of the traction structure, thereby driving the plug plate to rotate and unfold; The clutch structure includes a clutch assembly provided on the drill rod body, and a clutch slot vertically provided on the outside of the drive sleeve; The clutch assembly includes a clutch block elastically slidably mounted on the drill rod body along the radial direction; the clutch groove includes a first groove section and a second groove section, and one side of the second groove section is an inclined surface.

2. The ground subsidence stratification monitoring device according to claim 1, characterized in that: A first tooth portion is provided on the outer side of the drill rod body, and a second tooth portion is provided on the outer side of the insert plate; when the insert plate is retracted into the mounting opening, the first tooth portion and the second tooth portion are aligned to form the spiral teeth; when the insert plate is rotated and expanded, the second tooth portion is suitable for inserting into the soil outside the drill rod body.

3. The ground subsidence stratification monitoring device according to claim 1, characterized in that: The lower part of the protective cover is provided with an avoidance groove; the drill rod body is adapted to extend into the avoidance groove through the polished rod section at its upper part, and is matched with the avoidance groove through a baffle provided on the top of the drill rod body; When the drill rod assembly is placed at the bottom of the marking hole, the bottom of the drill rod body abuts against the bottom of the marking hole, so that the baffle abuts against the upper end of the avoidance groove; When performing the first action, the first action includes a first process and a second process; In the first process, the drill rod body rotates under the drive of the drive sleeve, and then the drill rod body is axially inserted into the soil through the spiral teeth until the protective cover moves downward synchronously with the drill rod body to contact the bottom of the marked hole; The second process: the drill rod body continues to move downward under the drive of the drive sleeve until the baffle moves down along the upper end of the avoidance groove to abut against the lower end of the avoidance groove; during this process, the drill rod body slides vertically relative to the drive sleeve to make the clutch structure move from the engaged state to the disengaged state.

4. The ground subsidence stratification monitoring device according to claim 3, characterized in that: When the first process is performed, the clutch assembly is located at the upper end of the clutch groove and engages with each other along the circumferential direction, so that the drill rod assembly rotates synchronously with the drive sleeve; When the second process is performed, the clutch assembly moves vertically downward relative to the clutch slot until the clutch assembly and the clutch slot are disengaged in the circumferential direction.

5. The ground subsidence stratification monitoring device according to claim 4, characterized in that: There are multiple corresponding clutch assemblies and clutch slots; when the second process is performed, the clutch block is suitable for sliding along the first slot section to the second slot section, and then when the drive sleeve rotates, the second slot section is suitable for cooperating with the clutch block through the inclined surface on one side thereof, so that the clutch block and the clutch slot are disengaged.

6. The ground subsidence stratification monitoring device according to any one of claims 1 to 5, characterized in that: The support rod assembly includes a support rod and at least one set of hinged plates; the upper part of the support rod is connected to the drive sleeve through the traction structure; the lower part of the support rod is hinged to the inner middle part of the plug plate through the hinged plate; when performing the second action, the support rod is suitable for moving vertically downward under the drive of the traction structure, and then driving the plug plate to rotate and unfold downward around the lower end of the installation port through the hinged plate.

7. The ground subsidence stratification monitoring device according to claim 6, characterized in that: The traction structure includes a traction assembly provided on the support rod, and a traction groove provided on the inner side of the drive sleeve; the traction groove includes a spiral section provided in an axial spiral direction, and a locking section connected to the lower end of the spiral section and provided horizontally in the circumferential direction; When the drill rod assembly is placed at the bottom of the marking hole, the traction assembly is located above the spiral section; When the first action is completed, the traction assembly moves vertically downward relative to the drive sleeve to the upper end of the spiral section; The second action includes a third process and a fourth process; wherein, in the third process, the driving sleeve rotates under the drive of the rotating device, so that the traction assembly slides relative to the spiral segment, thereby driving the support rod to move vertically downward and driving the plug plate to expand through the hinge plate; The fourth process: the driving sleeve rotates until the locking section cooperates with the traction assembly, and the axial movement of the support rod is locked.

8. The ground subsidence stratification monitoring device according to claim 7, characterized in that: The central angle corresponding to the arc length of the traction groove along the axial projection is less than 360°, so that an unlocking area is formed between the two ends of the traction groove in the axial projection; when the plug plate needs to be retracted, the drive sleeve is suitable for rotating to drive the traction assembly to pass through the locking section and be located in the unlocking area, so that the axial projection of the traction assembly is aligned with the upper end of the spiral section; at this time, the clutch block of the clutch assembly in the clutch structure is located in the second groove section of the clutch groove.

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