Deep bed rock point stability monitoring sensing device

Abstract

The invention relates to the technical field of rock and soil monitoring, and discloses a deep bed rock point stability monitoring sensing device which comprises a well drilling mechanism and a monitoring mechanism, the well drilling mechanism is used for drilling holes in the ground and deep bed rock, and the monitoring mechanism is connected with the deep bed rock; the circulating mechanism is used for driving slurry to circulate in the drill rod and the drill hole; the well drilling mechanism comprises a drill rod and a filtering assembly, a grouting opening and a slurry outlet are formed in the drill rod, and two sewage draining openings are further symmetrically formed in the drill rod. According to the deep bed rock point stability monitoring and sensing device, rock and soil chippings are cleaned out by circulating injected slurry between the drill rod and the drill hole, a borehole is kept clean, the slurry is used as power to filter the slurry injected into the drill rod, repeated cutting of a drill bit is avoided, abrasion is reduced, and the well drilling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of geotechnical monitoring, and specifically to a deep bedrock point stability monitoring sensing device. Background Art

[0002] For the monitoring of the bedrock in the goaf area, it is an important part of geological disaster and geotechnical engineering deformation monitoring. Especially for the stability monitoring of deep bedrock points, it is generally carried out through a pull rod or a wire-pulling type sensor. The sensor is fixed on the ground, and the pull rod or wire is inserted into the formation and connected to the target deep bedrock. When the deep bedrock undergoes displacement, the pull rod moves accordingly. The moving distance of the deep bedrock is the distance that the pull rod is pulled out. The measuring module inside the pull rod transmitter converts the distance that the pull rod is pulled out and outputs an electrical signal to judge the stability of the deep bedrock.

[0003] For the installation of the sensor, drilling is first required. Drilling equipment is used to drill into the bedrock. After the hole depth reaches the designed depth, the sensor is lowered to the designed depth, and then grouting is carried out in the hole for sealing. After the slurry solidifies and stabilizes, the initial value is measured, and monitoring is carried out at the designed frequency.

[0004] In Comparative Document 1 (CN202410262904.5), a deep bedrock point stability monitoring sensing device is disclosed. Comparative Document 1 uses a method of opening a spiral groove at the conical bottom of the drill pipe to carry the rock and soil debris broken by the drill pipe to the ground to keep the wellbore clean. However, the amount of rock and soil debris that can be carried by only a small circle of spiral grooves opened on the drill bit is extremely limited, and the drilling required for deep bedrock monitoring is relatively deep, making the device in Comparative Document 1 less practical.

[0005] Therefore, in order to solve the above technical problems existing in the prior art, a deep bedrock point stability monitoring sensing device is proposed. Summary of the Invention

[0006] The present invention provides a deep bedrock point stability monitoring sensing device, which has the beneficial effects of cleaning the rock and soil debris by circulating the mud between the drill pipe and the borehole to keep the wellbore clean, and using the mud itself as power to filter the mud injected into the drill pipe, avoiding repeated cutting of the drill bit, reducing wear, and improving the drilling efficiency, and solves the problems mentioned in the above background art.

[0007] The present invention provides the following technical solution: A deep bedrock point stability monitoring sensing device includes a drilling mechanism and a monitoring mechanism. The drilling mechanism is used to drill a borehole on the ground and the deep bedrock, and the monitoring mechanism is connected to the deep bedrock; It further includes a circulation mechanism, and the circulation mechanism is used to drive the mud to circulate inside the drill pipe and inside the borehole; The drilling mechanism includes a drill pipe and a filtering component. The drill pipe is provided with a grouting port and a slurry outlet, and two sewage outlets are symmetrically arranged on the drill pipe. The filtering component is used to filter the slurry injected into the drill pipe and discharge the filter residue to the two sewage outlets; The filtering component includes a first rotating shaft rotatably arranged on the first slider. A filter plate is arranged on the first rotating shaft, and a plurality of filter holes are formed in the filter plate. A second rotating shaft is rotatably arranged in the drill pipe, and the filter plate is connected to the second rotating shaft.

[0008] As an optional solution of the deep bedrock point stability monitoring and sensing device of the present invention, wherein: the monitoring mechanism includes a tripod arranged on the ground. A pull rod transmitter is arranged on the tripod, and a pull rod is slidably arranged on the pull rod transmitter. The pull rod passes through the drill hole and is connected to the deep bedrock; The circulation mechanism includes a liquid pump. The liquid pump is connected with a first pipeline. A sealing ring is arranged on the ground. The drill pipe is rotatably connected to the sealing ring. The first pipeline is communicated with the inner cavity of the drill pipe, and a second pipeline is arranged on the sealing ring.

[0009] As an optional solution of the deep bedrock point stability monitoring and sensing device of the present invention, wherein: a first slider and a second slider are slidably arranged in the drill pipe. The filtering component further includes a connecting plate arranged on the second rotating shaft, and the filter plate is slidably arranged on the connecting plate. Two torsion springs are symmetrically arranged on the second rotating shaft, and both of the two torsion springs are connected to the inner wall of the drill pipe.

[0010] As an optional solution of the deep bedrock point stability monitoring and sensing device of the present invention, wherein: the drilling mechanism further includes a first plugging component for plugging a plurality of the filter holes. The first plugging component includes a plurality of first sealing plates respectively rotatably arranged in the plurality of filter holes; A plurality of connecting shafts are rotatably arranged on the filter plate. The plurality of first sealing plates are arranged on the plurality of connecting shafts. A first gear is arranged on each of the plurality of connecting shafts. A plurality of first racks are arranged in the drill pipe. The first racks are arc-shaped, and the plurality of first racks are respectively meshed with the plurality of first gears.

[0011] As an optional solution of the deep bedrock point stability monitoring and sensing device of the present invention, wherein: the drilling mechanism further includes an auxiliary cleaning component. The auxiliary cleaning component includes a scraper slidably arranged on the filter plate; A first sliding groove is formed in the filter plate. A connecting piece is slidably arranged in the first sliding groove, and the connecting piece is connected to the scraper; The auxiliary cleaning assembly further includes a connecting rod, and two ends of the connecting rod are respectively rotatably arranged on the second slider and the connecting member.

[0012] As an alternative solution of the deep bedrock point stability monitoring and sensing device of the present invention, wherein: a transmission assembly is arranged inside the drill pipe, the transmission assembly includes a rotating rod rotatably arranged inside the drill pipe, and a first thread portion is provided on the rotating rod; Two first guiding blocks are arranged on the first slider, and both of the two first guiding blocks are slidably arranged inside the first thread portion.

[0013] As an alternative solution of the deep bedrock point stability monitoring and sensing device of the present invention, wherein: the transmission assembly further includes a second thread portion provided on the rotating rod, the thread direction of the second thread portion is the same as that of the first thread portion, and the pitch of the second thread portion is greater than the pitch of the first thread portion; Two second guiding blocks are arranged on the second slider, and both of the two second guiding blocks are slidably arranged inside the second thread portion, and a plurality of limiting rings are further arranged on the rotating rod.

[0014] As an alternative solution of the deep bedrock point stability monitoring and sensing device of the present invention, wherein: a second plugging assembly is arranged inside the drill pipe for plugging the slurry outlet, the second plugging assembly includes two second sealing plates slidably arranged inside the drill pipe; Second racks are arranged on both of the two second sealing plates, a second gear is arranged on the rotating rod, and the second gear meshes with the two second racks.

[0015] As an alternative solution of the deep bedrock point stability monitoring and sensing device of the present invention, wherein: a third plugging assembly is arranged inside the drill pipe for plugging the sewage outlet, the third plugging assembly includes a second sliding groove opened inside the drill pipe, the second sliding groove is communicated with the sewage outlet, a third sealing plate is slidably arranged inside the second sliding groove, and the third sealing plate is elastically connected with the inner wall of the second sliding groove through a spring.

[0016] As an alternative solution of the deep bedrock point stability monitoring and sensing device of the present invention, wherein: a driving mechanism is further included, the driving mechanism includes a bracket installed on the ground, a slurry conveying system and an engine are arranged on the bracket, the slurry conveying system is connected with the engine, third gears are arranged on the output shaft of the engine and the drill pipe, and the two third gears mesh.

[0017] The present invention has the following beneficial effects: 1. The deep bedrock stability monitoring sensor device adopts an integrated mud circulation system, using high-pressure mud to drive the drill pipe to drill and as drilling fluid to carry out the rock and soil debris under the wellbore. The mud is circulated inside the borehole and the drill pipe, which improves the utilization efficiency of the drilling fluid and reduces production costs.

[0018] 2. In order to prevent the recycled mud from carrying rock and soil debris and spraying out from the drill bit to form repeated cutting, the deep bedrock point stability monitoring sensor device first uses two filter plates to filter the mud before entering the drill bit to filter out the debris. When several filter holes on the two filter plates are not blocked, the two filter plates are in a "∧" shape, and the mud flows down from the gaps between several filter holes and several first sealing plates. When the debris accumulates on the two filter plates, causing several filter holes to be blocked and the mud to flow unsmoothly, the mud pressure will press the first slider and the two filter plates downward, so that the two filter plates form a "∨" shape. At this time, the mud will wash the debris onto the first slider, and then flow out from the two sewage outlets to achieve self-cleaning.

[0019] 3. In the deep bedrock point stability monitoring sensor device, when the filter plate slides downward, the first gears and the connecting shafts are driven by the first racks to rotate, thereby driving the first sealing plates to rotate and block the filter holes. Therefore, when the debris is discharged, the mud will not flow out from the remaining filter holes, but will flush the debris with all its strength, thus accelerating the efficiency of self-cleaning.

[0020] 4. In the deep bedrock point stability monitoring sensor device, when the two filter plates slide downward, the two first guide blocks on the first slider will slide along the first threaded portion to drive the rotating rod to rotate, and the second threaded portion will cause the two second guide blocks to slide relative to each other, driving the second slider to move downward. Since the pitch of the second threaded portion is greater than that of the rotating rod, the descending speed of the second slider is greater than that of the first slider, thereby driving the two scrapers to slide relative to the two filter plates, thereby assisting in scraping debris off the two filter plates.

[0021] 5. In order to prevent some debris from flowing out of the slurry outlet, the two second sealing plates will slide in the opposite direction to block the slurry outlet when the debris is discharged. When the debris is discharged to a certain extent, the two filter plates will reset under the rebound effect of several torsion springs, thereby driving the first slider, the second slider and the two second sealing plates to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the monitoring mechanism in the present invention.

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the monitoring mechanism in the present invention.

[0024] Figure 3Schematic structural diagram of the driving mechanism in the present invention.

[0025] Figure 4 Schematic sectional view structural diagram of the driving mechanism in the present invention.

[0026] Figure 5 Exploded structural diagram of the circulation mechanism in the present invention.

[0027] Figure 6 First sectional view structural diagram of the drill pipe in the present invention.

[0028] Figure 7 In the present invention Figure 6 Partial enlarged structural diagram at position A.

[0029] Figure 8 Second sectional view structural diagram of the drill pipe in the present invention.

[0030] Figure 9 In the present invention Figure 8 Partial enlarged structural diagram at position B.

[0031] Figure 10 First structural diagram of the drilling mechanism in the present invention.

[0032] Figure 11 Second structural diagram of the drilling mechanism in the present invention.

[0033] Figure 12 First exploded structural diagram of the drilling mechanism in the present invention.

[0034] Figure 13 Second exploded structural diagram of the drilling mechanism in the present invention.

[0035] In the figure: 100, ground; 110, deep bedrock; 120, borehole; 200, drilling mechanism; 210, drill pipe; 211, grouting port; 212, slurry outlet; 213, sewage outlet; 220, first slider; 230, second slider; 240, filter assembly; 241, filter plate; 242, filter hole; 243, first rotating shaft; 244, second rotating shaft; 245, torsion spring; 246, connecting plate; 250, first plugging assembly; 251, first sealing plate; 252, coupling shaft; 253, first gear; 254, first rack; 260, auxiliary cleaning assembly; 261, first chute; 262, connecting piece; 263, scraper; 264, connecting rod; 270, transmission assembly; 271, rotating rod; 272, first threaded part; 273, first guiding block; 274, second threaded part; 275, second guiding block; 276, limiting ring; 280, second plugging assembly; 281, second sealing plate; 282, second rack; 283, second gear; 290, third plugging assembly; 291, second chute; 292, third sealing plate; 293, spring; 300, monitoring mechanism; 310, tripod; 320, pull rod transmitter; 330, pull rod; 400, driving mechanism; 410, bracket; 420, mud conveying system; 430, engine; 440, third gear; 500, circulation mechanism; 510, liquid pump; 520, first pipeline; 530, second pipeline; 540, sealing ring. Specific embodiments

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0037] Example 1, please refer to Figures 1-5 , a deep bedrock point stability monitoring and sensing device, including a drilling mechanism 200 and a monitoring mechanism 300. The drilling mechanism 200 is used to drill a borehole 120 on the ground 100 and the deep bedrock 110, and the monitoring mechanism 300 is connected to the deep bedrock 110; It further includes a circulation mechanism 500, and the circulation mechanism 500 is used to drive the mud to circulate in the drill pipe 210 and the borehole 120; The drilling mechanism 200 includes a drill pipe 210 and a filter assembly 240. A grouting port 211 and a slurry outlet 212 are opened on the drill pipe 210, and two sewage outlets 213 are symmetrically opened on the drill pipe 210. The filter assembly 240 is used to filter the mud injected into the drill pipe 210 and discharge the filter residue to the two sewage outlets 213; The filtering component 240 includes a first rotating shaft 243 rotatably arranged on the first slider 220. A filter plate 241 is arranged on the first rotating shaft 243. A plurality of filter holes 242 are formed in the filter plate 241. A second rotating shaft 244 is rotatably arranged in the drill pipe 210, and the filter plate 241 is connected to the second rotating shaft 244. The monitoring mechanism 300 includes a tripod 310 arranged on the ground 100. A pull-rod transmitter 320 is arranged on the tripod 310. A pull rod 330 is slidably arranged on the pull-rod transmitter 320. The pull rod 330 passes through the drill hole 120 and is connected to the deep bedrock 110. The circulation mechanism 500 includes a liquid pump 510. The liquid pump 510 is connected to a first pipeline 520. A sealing ring 540 is arranged on the ground 100. The drill pipe 210 is rotatably connected to the sealing ring 540. The first pipeline 520 communicates with the inner cavity of the drill pipe 210. A second pipeline 530 is arranged on the sealing ring 540. It further includes a driving mechanism 400. The driving mechanism 400 includes a bracket 410 installed on the ground 100. A mud conveying system 420 and an engine 430 are arranged on the bracket 410. The mud conveying system 420 is connected to the engine 430. Third gears 440 are arranged on the output shaft of the engine 430 and the drill pipe 210 respectively, and the two third gears 440 are meshed.

[0038] In this embodiment: The device includes two parts, namely a drilling mechanism 200 and a monitoring mechanism 300. First, use the drilling mechanism 200 to drill a drill hole 120 in the ground 100 and the deep bedrock 110, and then withdraw the drilling mechanism 200. After the tripod 310 is supported on the ground 100, extend the pull rod 330 on the pull-rod transmitter 320 to the bottom of the drill hole 120 and connect it to a deeper hole on the deep bedrock 110 for a certain degree of fixation. Then, concrete or the like can be poured to seal the drill hole 120. When the deep bedrock 110 is displaced, the pull rod 330 will move accordingly. At this time, the displacement amount of the deep bedrock 110 can be accurately measured through the measuring module in the pull-rod transmitter 320 and used for analyzing its stability.

[0039] During specific drilling, the engine 430 is driven by the high-pressure mud supplied by the mud conveying system 420 to rotate its rotor. The output shaft of the rotor drives the drill pipe 210 to rotate through the transmission of the two third gears 440. In addition to rotating, the drill pipe 210 will also form a downward hammering motion state through the hydraulic cylinder inside it, so as to drill a drill hole 120 downward. Regarding the internal structure of the drill pipe 210 and its working principle of rotary hammering and drilling, it belongs to the conventional technical means of a drilling machine and is not shown in the figure and will not be elaborated here.

[0040] The middle part of the upper end of the drill pipe 210 is also connected to the first pipeline 520. The liquid pump 510 is connected to the mud conveying system 420. Part of the mud will be injected into the interior of the drill pipe 210 through the first pipeline 520 to drive its downward hammering motion. This part of the mud will also be ejected downward from the holes opened in the drill bit at the bottom of the drill pipe 210, serving as drilling fluid.

[0041] The ejected mud will rise from the drill hole 120 into the sealing ring 540 and then be conveyed out through the second pipeline 530. The second pipeline 530 is also connected to the mud conveying system 420. The mud conveyed out by the second pipeline 530 can be filtered to a certain extent and then conveyed into the drill pipe 210 by the liquid pump 510.

[0042] The circulation of the mud serves to carry out the cuttings broken by the drill bit at the bottom of the well, keep the wellbore clean, avoid repeated cutting of the drill bit, reduce wear, and improve the drilling efficiency; reduce the temperature of the drill bit and drill tools, reduce wear, and extend their service life; prevent the collapse of the wellbore and maintain the stability of the wellbore; balance the formation pressure and prevent dangerous situations such as blowout and lost circulation.

[0043] Embodiment 2. Specifically, please refer to Figures 4-13 , a first slider 220 and a second slider 230 are slidably arranged inside the drill pipe 210. The filtering assembly 240 further includes a connecting plate 246 arranged on the second rotating shaft 244, and the filter plate 241 is slidably arranged on the connecting plate 246. Two torsion springs 245 are symmetrically arranged on the second rotating shaft 244, and both of the two torsion springs 245 are connected to the inner wall of the drill pipe 210; The drilling mechanism 200 further includes a first blocking assembly 250 for blocking a plurality of filter holes 242. The first blocking assembly 250 includes a plurality of first sealing plates 251 respectively rotatably arranged in the plurality of filter holes 242; A plurality of connecting shafts 252 are rotatably arranged on the filter plate 241. The plurality of first sealing plates 251 are arranged on the plurality of connecting shafts 252. A first gear 253 is arranged on each of the plurality of connecting shafts 252. A plurality of first racks 254 are arranged inside the drill pipe 210. The first racks 254 are arc-shaped, and the plurality of first racks 254 are respectively meshed with the plurality of first gears 253.

[0044] In this embodiment: In order to further improve the fineness of the mud and avoid some debris that are not filtered cleanly outside from being ejected to the bottom of the well, a slurry injection port 211 is also opened at the upper end inside the drill pipe 210, and a slurry outlet 212 is opened at the lower end. Sewage discharge ports 213 are respectively opened at the front and rear ends of the drill pipe 210. The first slider 220 is slidably installed between the front and rear inner walls of the drill pipe 210 and keeps sealed. First rotating shafts 243 are rotatably installed at both the left and right ends of the first slider 220, and filter plates 241 are fixed on both of the two first rotating shafts 243.

[0045] A number of filter holes 242 arranged in a grid pattern are formed on both filter plates 241 for filtering mud. Also, the two filter plates 241 are kept sealed with the inner wall of the drill pipe 210. Between the front and rear inner walls of the drill pipe 210, two second rotating shafts 244 are rotatably installed symmetrically left and right. Connecting plates 246 are fixed on both second rotating shafts 244, and the two filter plates 241 are respectively slidably installed on the two connecting plates 246.

[0046] To assist in ensuring that when the two filter plates 241 are impacted by mud to form a "∨" structure, all the mud flows through the two filter plates 241 and does not flow through the remaining partially connected filter holes 242, thereby enhancing the ability to wash away debris.

[0047] The second slider 230 is also slidably installed on the inner wall of the drill pipe 210 and can slide up and down. During normal use, the second slider 230 blocks the two sewage outlets 213 to prevent mud from flowing out from here.

[0048] Two torsion springs 245 are fixed on each second rotating shaft 244, and the two ends of the four torsion springs 245 are respectively fixed on the front and rear inner walls of the drill pipe 210 and the surfaces of the two second rotating shafts 244. The elastic support of the four torsion springs 245 enables the two filter plates 241 to form a "∧" structure.

[0049] During normal use, mud enters the drill pipe 210 through the grouting port 211, is filtered by the two filter plates 241, and then passes through the slurry outlet 212. When debris accumulates on the two filter plates 241 to a certain extent, causing a number of filter holes 242 to be blocked and the mud unable to flow normally.

[0050] The gravity of the mud causes the first slider 220 and the two filter plates 241 to slide downward. At this time, the two filter plates 241 gradually form a "∨" shape structure. During this process, the two filter plates 241 will respectively slide inside the two connecting plates 246 to provide a telescopic function.

[0051] At this time, the mud will wash the debris accumulated on the two filter plates 241 onto the first slider 220. Both the first slider 220 and the second slider 230 slide downward. The first slider 220 slides to the two sewage outlets 213, enabling the debris to flow out through the two sewage outlets 213. And the upper end of the first slider 220 is constructed to be inclined towards the front and rear sides, facilitating the discharge of debris along with the mud.

[0052] A number of filter holes 242 on one filter plate 241 are arranged in three rows. Three connecting shafts 252 are rotatably installed on the filter plate 241, and a number of first sealing plates 251 are fixed on the surfaces of the three connecting shafts 252, and the number of first sealing plates 251 respectively rotate inside the number of filter holes 242.

[0053] A first gear 253 is fixed on each of several coupling shafts 252, and three first racks 254 are fixed on the inner wall of the drill pipe 210. The three first racks 254 are arc-shaped.

[0054] When the two filter plates 241 are in a "∧" shape structure, several first sealing plates 251 are vertically formed relative to several filter holes 242. At this time, the mud can flow down normally through the gaps between several first sealing plates 251 and several filter holes 242.

[0055] During the downward sliding process of the two filter plates 241, through the driving of partial meshing of six first gears 253 and six first racks 254 during the sliding process, the six coupling shafts 252 will rotate. As a result, several first sealing plates 251 will rotate to a state of blocking several filter holes 242.

[0056] Embodiment Three. Specifically, please refer to Figures 4-13 , the drilling mechanism 200 further includes an auxiliary cleaning assembly 260. The auxiliary cleaning assembly 260 includes a scraper 263 slidably disposed on the filter plate 241; A first sliding groove 261 is formed on the filter plate 241. A connecting member 262 is slidably disposed in the first sliding groove 261, and the connecting member 262 is connected to the scraper 263; The auxiliary cleaning assembly 260 further includes a connecting rod 264. Two ends of the connecting rod 264 are respectively rotatably disposed on the second slider 230 and the connecting member 262.

[0057] In this embodiment: rectangular first sliding grooves 261 are formed at the rear ends of the two filter plates 241. Connecting members 262 are slidably installed in the two first sliding grooves 261, and scrapers 263 are fixed on the two connecting members 262. The two scrapers 263 slide along the upper ends of the two filter plates 241 respectively.

[0058] Two ends of the connecting rod 264 are respectively rotatably installed on the second slider 230 and the connecting member 262. During the downward movement of the second slider 230, the two connecting members 262 slide in the two first sliding grooves 261, so that the two scrapers 263 slide on the two filter plates 241. The auxiliary debris is scraped off.

[0059] Embodiment Four. Specifically, please refer to Figures 4-13 , a transmission assembly 270 is disposed in the drill pipe 210. The transmission assembly 270 includes a rotating rod 271 rotatably disposed in the drill pipe 210, and a first threaded portion 272 is formed on the rotating rod 271; Two first guiding blocks 273 are disposed on the first slider 220, and the two first guiding blocks 273 are both slidably disposed in the first threaded portion 272; The transmission assembly 270 further includes a second threaded portion 274 formed on the rotating rod 271. The thread direction of the second threaded portion 274 is the same as that of the first threaded portion 272, and the pitch of the second threaded portion 274 is greater than that of the first threaded portion 272. Two second guiding blocks 275 are provided on the second slider 230, and both of the two second guiding blocks 275 are slidably disposed within the second threaded portion 274. A plurality of limiting rings 276 are further provided on the rotating rod 271.

[0060] In this embodiment: To enable the second slider 230 to also move downward when the first slider 220 moves downward under the action of the mud gravity, and the second slider 230 moves downward at a faster speed, so as to achieve the effect that the two scraping plates 263 slide relative to the two filter plates 241.

[0061] The rotating rod 271 is rotatably installed on the upper inner wall of the drill pipe 210. The first threaded portion 272 and the second threaded portion 274 are formed on the rotating rod 271, and the pitch of the second threaded portion 274 is greater than that of the first threaded portion 272. Two first guiding blocks 273 and two second guiding blocks 275 are respectively fixed on the first slider 220 and the second slider 230.

[0062] When the first slider 220 moves downward, due to the guiding effect of the two first guiding blocks 273 sliding along the first threaded portion 272, the rotating rod 271 rotates. And when the rotating rod 271 rotates, due to the action of the two second guiding blocks 275 sliding along the second threaded portion 274, the second slider 230 will accelerate its downward movement.

[0063] The limiting rings 276 are fixed on the surface of the rotating rod 271 to play a limiting role.

[0064] Embodiment Five. Specifically, please refer to Figures 4-13 , a second blocking assembly 280 is provided within the drill pipe 210 for blocking the slurry outlet 212. The second blocking assembly 280 includes two second sealing plates 281 slidably disposed within the drill pipe 210; Second racks 282 are provided on both of the two second sealing plates 281. A second gear 283 is provided on the rotating rod 271, and the second gear 283 meshes with the two second racks 282; A third blocking assembly 290 is provided within the drill pipe 210 for blocking the sewage outlet 213. The third blocking assembly 290 includes a second chute 291 formed within the drill pipe 210. The second chute 291 is in communication with the sewage outlet 213. A third sealing plate 292 is slidably disposed within the second chute 291, and the third sealing plate 292 is elastically connected to the inner wall of the second chute 291 by a spring 293.

[0065] In this embodiment: Two second sealing plates 281 are slidably mounted symmetrically before and after on the inner wall of the drill pipe 210. Second racks 282 are fixed to the upper ends of the two second sealing plates 281. A second gear 283 is fixed to the surface of the rotating rod 271. The two second racks 282 are engaged on both sides of the second gear 283, one on the left and one on the right.

[0066] When the rotating rod 271 rotates, it will drive the second gear 283 to rotate, thereby driving the two second racks 282 and the two second sealing plates 281 to displace in opposite directions to block the slurry outlet 212.

[0067] In addition, the sewage outlet 213 is normally closed by the third sealing plate 292. When the first slider 220 descends, it will abut against the protruding edge portion of the third sealing plate 292 and push the third sealing plate 292 downward to open the sewage outlet 213. After the first slider 220 rises and resets, the third sealing plate 292 will also reset under the action of the spring 293.

[0068] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0069] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A deep bedrock point stability monitoring sensor device, comprising a drilling mechanism (200) and a monitoring mechanism (300), characterized in that: The drilling mechanism (200) is used to drill a borehole (120) on the ground (100) and the deep bedrock (110), and the monitoring mechanism (300) is connected to the deep bedrock (110); It also includes a circulation mechanism (500), wherein the circulation mechanism (500) is used to drive mud to circulate in the drill rod (210) and the borehole (120); The drilling mechanism (200) comprises a drill rod (210) and a filter assembly (240); the drill rod (210) is provided with a grouting port (211) and a grouting port (212); the drill rod (210) is also provided with two symmetrical sewage outlets (213); the filter assembly (240) is used to filter the slurry injected into the drill rod (210) and discharge the filtered residue to the two sewage outlets (213); The filter assembly (240) comprises a first rotating shaft (243) rotatably arranged on the first sliding block (220); a filter plate (241) is arranged on the first rotating shaft (243); a plurality of filter holes (242) are formed on the filter plate (241); a second rotating shaft (244) is rotatably arranged in the drill rod (210), and the filter plate (241) is connected to the second rotating shaft (244).

2. A deep bedrock point stability monitoring sensor device according to claim 1, characterized in that: The monitoring mechanism (300) comprises a tripod (310) arranged on the ground (100), a pull rod transmitter (320) being arranged on the tripod (310), a pull rod (330) being slidably arranged on the pull rod transmitter (320), and the pull rod (330) passing through the borehole (120) and connected to the deep bedrock (110); The circulation mechanism (500) comprises a liquid pump (510), the liquid pump (510) is connected to a first pipeline (520), a sealing ring (540) is provided on the ground (100), the drill rod (210) is rotatably connected to the sealing ring (540), the first pipeline (520) is communicated with the inner cavity of the drill rod (210), and a second pipeline (530) is provided on the sealing ring (540).

3. A deep bedrock point stability monitoring sensor device according to claim 1, characterized in that: A first sliding block (220) and a second sliding block (230) are slidably disposed in the drill rod (210); the filter assembly (240) further comprises a connecting plate (246) disposed on the second rotating shaft (244); and the filter plate (241) is slidably disposed on the connecting plate (246); two torsion springs (245) are symmetrically disposed on the second rotating shaft (244); and the two torsion springs (245) are both connected to the inner wall of the drill rod (210).

4. A deep bedrock point stability monitoring sensor device according to claim 3, characterized in that: The drilling mechanism (200) further comprises a first plugging assembly (250) for plugging a plurality of the filter holes (242), the first plugging assembly (250) comprising a plurality of first sealing plates (251) rotatably disposed in the plurality of the filter holes (242); A plurality of connecting shafts (252) are rotatably arranged on the filter plate (241), a plurality of the first sealing plates (251) are arranged on the plurality of connecting shafts (252), a first gear (253) is arranged on the plurality of connecting shafts (252), a plurality of first racks (254) are arranged in the drill rod (210), the first racks (254) are arc-shaped, and the plurality of the first racks (254) are respectively meshed with the plurality of the first gears (253).

5. A deep bedrock point stability monitoring sensor device according to claim 3, characterized in that: The drilling mechanism (200) further comprises an auxiliary cleaning assembly (260), wherein the auxiliary cleaning assembly (260) comprises a scraper (263) slidably disposed on the filter plate (241); The filter plate (241) is provided with a first slide groove (261), a connecting piece (262) is slidably arranged in the first slide groove (261), and the connecting piece (262) is connected to the scraper (263); The auxiliary cleaning component (260) further comprises a connecting rod (264), and two ends of the connecting rod (264) are rotatably disposed on the second sliding block (230) and the connecting member (262), respectively.

6. A deep bedrock point stability monitoring sensor device according to claim 3, characterized in that: A transmission assembly (270) is arranged in the drill rod (210), and the transmission assembly (270) comprises a rotating rod (271) rotatably arranged in the drill rod (210), and a first threaded portion (272) is formed on the rotating rod (271); Two first guide blocks (273) are arranged on the first sliding block (220), and the two first guide blocks (273) are both slidably arranged in the first threaded portion (272).

7. A deep bedrock point stability monitoring sensor device according to claim 6, characterized in that: The transmission assembly (270) further comprises a second threaded portion (274) formed on the rotating rod (271), the thread direction of the second threaded portion (274) being the same as that of the first threaded portion (272), and the pitch of the second threaded portion (274) being greater than the pitch of the first threaded portion (272); The second sliding block (230) is provided with two second guide blocks (275), and the two second guide blocks (275) are both slidably disposed in the second threaded portion (274), and the rotating rod (271) is also provided with a plurality of limiting rings (276).

8. A deep bedrock point stability monitoring sensor device according to claim 6, characterized in that: A second plugging assembly (280) is arranged in the drill rod (210) for plugging the slurry outlet (212), and the second plugging assembly (280) comprises two second sealing plates (281) slidably arranged in the drill rod (210); The two second sealing plates (281) are each provided with a second rack (282), the rotating rod (271) is provided with a second gear (283), and the second gear (283) is meshed with the two second racks (282).

9. A deep bedrock point stability monitoring sensor device according to claim 6, characterized in that: A third plugging assembly (290) is arranged in the drill rod (210) for plugging the sewage outlet (213). The third plugging assembly (290) comprises a second slide groove (291) opened in the drill rod (210). The second slide groove (291) is connected to the sewage outlet (213). A third sealing plate (292) is slidably arranged in the second slide groove (291). The third sealing plate (292) is elastically connected to the inner wall of the second slide groove (291) via a spring (293).

10. A deep bedrock point stability monitoring sensor device according to claim 1, characterized in that: The drill bit (400) further comprises a driving mechanism (400), the driving mechanism (400) comprising a bracket (410) mounted on the ground (100), a mud conveying system (420) and an engine (430) being arranged on the bracket (410), the mud conveying system (420) being connected to the engine (430), and a third gear (440) being arranged on the output shaft of the engine (430) and the drill rod (210), and the two third gears (440) being meshed.

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