CN214695785U

CN214695785U - Drilling sediment thickness detection device

Info

Publication number: CN214695785U
Application number: CN202120341045.0U
Authority: CN
Inventors: 李超友
Original assignee: 107 Geological Team Of Chongqing Bureau Of Geology And Mineral Resources Exploration And Development
Current assignee: 107 Geological Team Of Chongqing Bureau Of Geology And Mineral Resources Exploration And Development
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-11-12
Anticipated expiration: 2031-02-05

Abstract

The utility model belongs to the technical field of the geological exploration technique and specifically relates to a drilling sediment thickness detection device is related to, and it includes the survey rope, and the one end of surveying the rope is equipped with measuring mechanism, and the other end of surveying the rope is equipped with hoist mechanism, and measuring mechanism is including surveying cake and hoist, and the hoist is established in the one end that hoist mechanism was kept away from to the survey rope, surveys the cake joint and fixes on the hoist, surveys the cake and is equipped with the water hole of crossing that will survey the cake and run through along vertical direction. The present application has the following effects: survey during the cake can get into the muddy water of hole bottom through the gravity of self, muddy water can be through crossing the water hole simultaneously and overflow to the top of surveying the cake to make survey the cake can with sediment looks butt, and because survey the area of contact of cake and sediment big, consequently survey in the cake is difficult for stabbing the sediment, thereby increase with the length of avoiding surveying the rope, and then make the measuring result more accurate.

Description

Drilling sediment thickness detection device

Technical Field

The application relates to the technical field of geological exploration, in particular to a device for detecting the thickness of drilling sediments.

Background

The thickness of the drilling sediment in the drilling pouring pile foundation engineering has important significance for finding out the bearing capacity of the bridge foundation, the roadbed, the port and the foundation of a high-rise building. During drilling, sediment is often formed in the borehole, and sediment refers to sediment left by sediment or hole collapse during drilling and hole cleaning and is not carried away by the circulating mud. Generally of coarser particle size, the thickness of the sediment, i.e. the height of the layer of sediment.

The thickness of the sediment at the bottom of the hole has strict index regulation, and the sediment is too thick, so that the pile foundation poured in the drilled hole is easy to generate settlement. The measurement of the sediment thickness usually requires the aid of a detection device, since it is inconvenient for the constructor to reach the position of the hole bottom. In the related art, the sediment thickness detection method comprises the following steps: and measuring the depth of the drilling equipment extending into the ground as the depth of the hole bottom, combining the measuring rope and the hanging hammer into a detection device, and measuring the depth of the top surface of the sediment, wherein the difference is the sediment thickness.

In view of the above-mentioned related art, the inventor believes that the sediment in the drill hole is generally in the shape of mud sediment, and the sharp pointed part of the hammer easily penetrates into the sediment to cause the length of the measuring line to increase, thereby causing inaccurate measurement value of the sediment thickness.

SUMMERY OF THE UTILITY MODEL

In order to improve sediment thickness testing result's accuracy, this application provides a drilling sediment thickness detection device.

The application provides a drilling sediment thickness detection device adopts following technical scheme:

the utility model provides a drilling sediment thickness detection device, includes the survey rope, the one end of survey rope is equipped with measuring mechanism, the other end of survey rope is equipped with hoist mechanism, measuring mechanism is including surveying cake and hoist, the hoist is established in the survey rope and is kept away from hoist mechanism's one end, survey the cake joint and fix on the hoist, survey the cake and be equipped with along the water hole of crossing that vertical direction will survey the cake and run through.

Through adopting above-mentioned technical scheme, survey the cake and can get into the muddy water of hole bottom through the gravity of self, muddy water can be through crossing the water hole simultaneously and diffuse to the top of surveying the cake to make survey the cake can with sediment looks butt, and because the area of contact who surveys cake and sediment is big, consequently survey the cake and be difficult for pricking in the sediment, thereby increase with the length of avoiding surveying the rope, and then make the measuring result more accurate.

Optionally, the lifting appliance comprises a fixed claw disc and a movable claw, a lifting ring is arranged on one side, close to the rope measuring, of the fixed claw disc, a lifting hook is arranged at one end, far away from the lifting mechanism, of the rope measuring, the lifting hook is clamped and fixed in the lifting ring, the movable claw is connected to the fixed claw disc in a sliding mode along the circumferential direction of the fixed claw disc, and the movable claw is fixed to the fixed claw disc through a limiting assembly.

Through adopting above-mentioned technical scheme for the activity jack catch can be smoothly will survey the cake and carry out the centre gripping, and make the activity jack catch can be applicable to the survey cake of different diameters.

Optionally, the fixed claw dish is equipped with along the circumference of fixed claw dish and bears the arm, it is equipped with the spout that supplies the activity jack catch to slide to bear the arm, spacing subassembly includes stop screw and stop nut, stop screw fixes on the activity jack catch, stop screw pass the lateral wall of spout and with stop nut threaded connection, stop nut and the outside looks butt of spout lateral wall, be equipped with on the lateral wall of spout and supply stop screw to carry out the regulation hole that slides.

By adopting the technical scheme, after the cake clamping is fixed through the movable clamping jaw, the limiting nut is abutted against the outer side of the side wall of the sliding groove, so that the movable clamping jaw can be locked and fixed on the bearing arm, and the purpose of fixing the cake clamping through the movable clamping jaw is achieved.

Optionally, one end of the movable clamping jaw, which is far away from the fixed jaw disc, extends in the direction far away from the rope to form a clamping jaw part, and one side, which is close to the axial lead of the fixed jaw disc, of the clamping jaw part is provided with a butting plate.

Through adopting above-mentioned technical scheme for the movable clamping jaw with survey the area of contact increase between the cake, and then so that the movable clamping jaw will survey the cake centre gripping and get more firm.

Optionally, the winding mechanism comprises a rack, a driving motor and a winding drum, the winding drum is rotatably arranged on the rack, the driving motor is located on one side of the winding drum, the driving motor is in transmission connection with the winding drum through a reduction gear set, and the rack is provided with a gear box outside the reduction gear set.

Through adopting above-mentioned technical scheme, when driving motor ordered about the reel and rotated, the reel can receive and release the measuring rope to reach and hang the mesh of putting the sediment department at the bottom of the hole with measuring mechanism.

Optionally, the reduction gear group is including fixing the one-level initiative tooth at the driving motor output, with one-level initiative tooth meshing transmission's one-level speed reduction tooth, with the second grade initiative tooth of one-level speed reduction tooth meshing and with the second grade initiative tooth meshing transmission's second grade speed reduction tooth, second grade speed reduction tooth and reel fixed connection, the diameter of one-level initiative tooth is less than the diameter of one-level speed reduction tooth, the diameter of second grade initiative tooth is less than the diameter of second grade speed reduction tooth.

By adopting the technical scheme, when the output end of the driving motor drives the primary driving tooth to rotate, the primary driving tooth can drive the winding drum to rotate together through the primary speed reducing tooth, the secondary driving tooth and the secondary speed reducing tooth, and the rotating speed of the winding drum is smaller than that of the driving motor, so that the purpose of reducing the rotating speed of the winding drum is achieved.

Optionally, the frame is a rectangular frame structure, the two ends of the frame in the width direction penetrate through the bearing steel pipes, and the bearing steel pipes are connected with the frame in a sliding manner.

Through adopting above-mentioned technical scheme, bear the weight of the steel pipe and make hoist mechanism can be applicable to the drilling in different apertures to it is firm to make hoist mechanism can install at the entrance of the drilling in different apertures, thereby in order to reach the purpose of receiving and releasing the survey rope.

Optionally, the both ends of bearing the weight of the steel pipe all are equipped with the shock attenuation seat, bear the weight of the steel pipe and slide and wear to locate in the shock attenuation seat.

Through adopting above-mentioned technical scheme, the shock attenuation seat is used for strengthening the steadiness when bearing steel pipe and pore wall looks butt to it is difficult for subaerial rolling and causes the hoist mechanism to produce the displacement to bear the steel pipe.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the contact area of the measuring cake and the sediment is large, so that the measuring cake is not easy to penetrate into the sediment, the length of the measuring rope is prevented from increasing, and the measuring result is more accurate;

2. bear the steel pipe through the setting for hoist mechanism can be applicable to the drilling in different apertures, and makes hoist mechanism can be firm in the entrance installation in the drilling in different apertures.

Drawings

FIG. 1 is a schematic structural diagram of the whole drilling sediment thickness detection device in the embodiment of the application;

FIG. 2 is a schematic view of the device for detecting the thickness of the drill sediment in the embodiment of the application for measuring the thickness of the sediment;

FIG. 3 is a schematic structural view of a reduction gear set in the embodiment of the present application;

fig. 4 is an enlarged view of a portion a in fig. 2.

Description of reference numerals: 1. rope measurement; 11. a hook; 2. a measuring mechanism; 21. measuring the cake; 211. water passing holes; 22. a spreader; 221. a fixed jaw plate; 2211. a hoisting ring; 222. a movable jaw; 2221. a claw part; 223. a limiting component; 2231. a limit screw; 2232. a limit nut; 224. a butt joint plate; 2241. a vertical section; 2242. a horizontal segment; 225. a carrying arm; 2251. a chute; 2252. an adjustment hole; 3. a hoisting mechanism; 31. a frame; 311. a gear case; 32. a drive motor; 33. a reel; 34. a reduction gear set; 341. a primary driving tooth; 342. a first-stage reduction gear; 343. a secondary driving tooth; 344. a secondary reduction gear; 35. carrying a steel pipe; 36. a shock absorbing seat; 4. drilling; 5. settling dregs; 6. and (3) muddy water.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses drilling sediment thickness detection device. Referring to fig. 1, the device for detecting the thickness of the drill sediment comprises a measuring rope 1, a measuring mechanism 2 and a hoisting mechanism 3.

Referring to fig. 1 and 2, the measuring mechanism 2 is arranged at one end of the measuring rope 1, and during detection, one end of the measuring rope 1 close to the measuring mechanism 2 needs to extend into the borehole 4. Hoist mechanism 3 is fixed at the entrance of drilling 4, and hoist mechanism 3 establishes the other end at survey rope 1, and hoist mechanism 3 is used for receiving and releasing survey rope 1, and then in order to reach the purpose of ordering about measuring mechanism 2 and go up and down in drilling 4. The measuring mechanism 2 is hung down to reach the sediment 5 at the bottom of the hole under the measuring rope 1, then records the current position of the measuring rope 1, then takes out the measuring rope 1 through the hoisting mechanism 3, measures the length of the measuring rope 1 and the height of the measuring mechanism 2, and then calculates the difference between the sum of the two and the depth of the hole bottom to obtain the thickness of the sediment 5.

The measuring rope 1 can adopt a braided hemp rope which is not easy to deform, so that the measuring rope 1 has stronger bearing strength and toughness. And the measuring rope 1 should be soaked in advance to prevent the measuring rope 1 from deforming when being folded and unfolded so as to cause inaccurate measuring results. Meanwhile, the length of the measuring rope 1 should be greater than the depth of the drill hole 4, so that the measuring mechanism 2 can be smoothly hung to the sediment 5.

Referring to fig. 1 and 3, the winding mechanism 3 includes a frame 31, a driving motor 32, and a winding drum 33. The frame 31 is a rectangular frame structure, and the inner space of the frame 31 is used as a storing and releasing opening of the measuring rope 1. The frame 31 may be welded by using steel beams, so that the frame 31 has strong structural strength. The winding drum 33 is rotatably disposed on the frame 31, and a projection of the winding drum 33 on the frame 31 is located in a region corresponding to a space inside the frame 31. One end of the measuring line 1 is fixed on the outer side wall of the winding drum 33, so that the winding and unwinding of the measuring line 1 can be realized when the winding drum 33 rotates. The driving motor 32 can be a servo motor, the driving motor 32 is located at one side of the winding drum 33, and the driving motor 32 is fixedly connected with the frame 31. The driving motor 32 is used for driving the drum 33 to rotate.

In order to improve the control accuracy of the driving motor 32 and avoid the excessive speed of the measuring rope 1 during winding and unwinding, the driving motor 32 is in transmission connection with the winding drum 33 through a reduction gear set 34, and the rack 31 is provided with a gear box 311 outside the reduction gear set 34. The reduction gear set 34 includes primary drive teeth 341, primary reduction teeth 342, secondary drive teeth 343, and secondary reduction teeth 344. The primary driving tooth 341 is fixed at the output end of the driving motor 32, the primary reduction tooth 342 is meshed with the primary driving tooth 341, and the diameter of the primary driving tooth 341 is smaller than that of the primary reduction tooth 342, thereby forming a first group of reduction transmission parts; the secondary driving teeth 343 mesh with the primary reduction teeth 342, the secondary reduction teeth 344 mesh with the secondary driving teeth 343, and the diameter of the secondary driving teeth 343 is smaller than the diameter of the secondary reduction teeth 344, thereby forming a second group reduction transmission. The secondary reduction teeth 344 are fixedly connected to the spool of the drum 33. When the output end of the driving motor 32 drives the primary driving tooth 341 to rotate, the primary driving tooth 341 can sequentially pass through the primary decelerating tooth 342, the secondary driving tooth 343 and the secondary decelerating tooth 344 to drive the winding drum 33 to rotate together, and the rotating speed of the winding drum 33 is smaller than that of the driving motor 32, so that the purpose of reducing the rotating speed of the winding drum 33 is achieved.

Referring to fig. 1 and 2, the frame 31 has steel support pipes 35 formed at both ends thereof in the width direction. The bearing steel pipe 35 is made of a steel pipe which is not easy to deform so as to avoid the accuracy of the measurement result from being influenced. The bearing steel pipe 35 is connected with the frame 31 in a sliding way, so that the bearing steel pipe 35 can be detached from the frame 31. If the bore of the borehole 4 is small, the housing 31 may be placed directly at the entrance of the borehole 4 and the housing 31 may be brought into abutment with the wall of the hole at the entrance. If the bore 4 has a large diameter, the steel support tube 35 may be inserted into the frame 31, and both ends of the steel support tube 35 may abut against the wall of the bore at the entrance. The length of the steel support pipe 35 can be appropriately selected according to the size of the bore 4. Bear steel pipe 35 and make hoist mechanism 3 can be applicable to the drilling 4 in different apertures to it is firm to make hoist mechanism 3 can install at the entrance of the drilling 4 in different apertures, thereby reaches the purpose of receiving and releasing the measuring rope 1.

The two ends of the bearing steel pipe 35 are provided with shock absorbing seats 36. The damping seat 36 may be made of a composite rubber material, the damping seat 36 is tapered, a large end of the damping seat 36 is one end abutted to the ground, and a small end of the damping seat 36 is one end away from the ground. The bearing steel pipe 35 is slidably arranged in the shock absorption seat 36. The shock absorbing seat 36 is used to enhance the stability of the steel bearing pipe 35 when abutting against the hole wall, so that the steel bearing pipe 35 is not easy to roll on the ground to cause the displacement of the hoisting mechanism 3.

The measuring mechanism 2 comprises a measuring cake 21 and a spreader 22. The measuring cake 21 can be made of glass fiber reinforced plastic material, and the measuring cake 21 is in a disc shape. The diameter of the test cake 21 is smaller than the diameter of the borehole 4 so that the test cake 21 can be placed into the borehole 4. The measuring cake 21 is provided with a water through hole 211 which penetrates the measuring cake 21 along the vertical direction. The lifting appliance 22 is arranged at one end of the measuring rope 1 far away from the hoisting mechanism 3, and the measuring cake 21 is clamped and fixed on the lifting appliance 22. When the measuring rope 1 is wound and unwound, the lifting appliance 22 can drive the measuring cake 21 to lift. Survey rope 1 will survey cake 21 and hang when putting to sediment 5's top, survey cake 21 can be through the gravity of self and get into in the muddy water 6 of hole bottom, muddy water 6 can be through the water hole 211 to the top of surveying cake 21 simultaneously, so that survey cake 21 can with sediment 5 looks butt, and because survey cake 21 and sediment 5's area of contact is big, consequently survey cake 21 and be difficult for pricking in sediment 5, thereby increase with the length of avoiding surveying rope 1, and then make the measuring result more accurate.

The spreader 22 includes a fixed jaw disc 221 and a movable jaw 222. The fixed claw disc 221 is used as a fixed foundation of the lifting appliance 22, a lifting ring 2211 is arranged on one side, close to the rope measuring 1, of the fixed claw disc 221, a lifting hook 11 is arranged at one end, far away from the hoisting mechanism 3, of the rope measuring 1, and the lifting hook 11 is clamped and fixed in the lifting ring 2211, so that the purpose of connecting the fixed claw disc 221 with the rope measuring 1 is achieved. The movable claws 222 are slidably connected to the fixed claw disc 221 in the axial direction of the fixed claw disc 221, so that the movable claws 222 can smoothly clamp the test cake 21, and the movable claws 222 can be applied to test cakes 21 with different diameters. In this embodiment, three movable claws 222 are provided along the circumferential direction of the fixed claw disk 221. The movable claw 222 is fixed on the fixed claw disc 221 through a limiting component 223, so that the measuring cake 21 is not easy to fall off in the hoisting process.

Referring to fig. 2 and 4, a clamping jaw portion 2221 is formed by extending one end of the movable clamping jaw 222 away from the fixed clamping jaw disc 221 in the direction away from the measuring line 1, and a U-shaped structure is formed between the clamping jaw portion 2221 and the movable clamping jaw 222. The measuring cake 21 is clamped and fixed in the clamping jaw portion 2221, so that the movable clamping jaw 222 can firmly clamp the measuring cake 21. An abutting plate 224 is arranged on one side of the claw portion 2221 close to the axial lead of the fixed claw disc 221, the abutting plate 224 is a steel plate, and the abutting plate 224 and the claw portion 2221 are welded and fixed. The abutment plate 224 includes vertical and

horizontal segments

2241 and 2242 that are perpendicular to each other. Vertical section 2241 and the lateral wall looks butt of surveying cake 21, horizontal segment 2242 and the diapire looks butt of surveying cake 21 to so that activity jack catch 222 and survey the area of contact increase between the cake 21, and then so that activity jack catch 222 will survey the cake 21 centre gripping more firm.

Referring to fig. 1 and 2, the fixed jaw plate 221 is provided with a bearing arm 225 along an axial direction of the fixed jaw plate 221. The bearing arms 225 correspond to the movable claws 222 one by one, the bearing arms 225 are provided with sliding grooves 2251 for the movable claws 222 to slide, and the notches of the sliding grooves 2251 face the direction close to the measuring line 1. The spacing assembly 223 includes a spacing screw 2231 and a spacing nut 2232. The limit screw 2231 is welded and fixed on the movable claw 222, and the limit screw 2231 penetrates through the side wall of the sliding groove 2251 and is in threaded connection with the limit nut 2232. The side wall of the sliding groove 2251 is provided with an adjusting hole 2252, the adjusting hole 2252 is waist-shaped, and when the movable claw 222 slides in the sliding groove 2251, the limit screw 2231 slides in the adjusting hole 2252, so as to avoid the interference of the sliding of the movable claw 222. After the measuring cake 21 is clamped and fixed by the movable clamping jaw 222, the limiting nut 2232 is abutted against the outer side of the side wall of the sliding groove 2251, so that the movable clamping jaw 222 is locked and fixed on the bearing arm 225, and the purpose of clamping and fixing the measuring cake 21 by the movable clamping jaw 222 is achieved.

The implementation principle of the drilling sediment thickness detection device in the embodiment of the application is as follows: during detection, the limiting component 223 is firstly loosened, then the movable clamping jaw 222 is moved along the direction far away from the axial lead of the fixed jaw disc 221, then the cake 21 is clamped in the clamping jaw portion 2221, then the movable clamping jaw 222 is moved along the direction close to the axial lead of the fixed jaw disc 221, and the movable clamping jaw 222 forms a stable clamping effect on the cake 21. The movable claw 222 is locked and fixed on the fixed claw disc 221 through the limiting component 223, and then the lifting hook 11 on the measuring rope 1 is clamped and fixed on the lifting ring 2211 of the fixed claw disc 221. The measuring cake 21 is put into the drill hole 4, the driving motor 32 is started, and when the output end of the driving motor 32 drives the primary driving tooth 341 to rotate, the primary driving tooth 341 can drive the winding drum 33 to rotate together through the primary speed reduction tooth 342, the secondary driving tooth 343 and the secondary speed reduction tooth 344, so that the winding drum 33 is driven to pay off. The winding drum 33 is used for hanging the measuring cake 21 to the sediment 5 at the bottom of the hole, when the measuring rope 1 is used for hanging the measuring cake 21 above the sediment 5, the measuring cake 21 can enter the muddy water 6 at the bottom of the hole through the gravity of the measuring cake 21, and meanwhile, the muddy water 6 can permeate above the measuring cake 21 through the water through hole 211, so that the measuring cake 21 can be abutted to the sediment 5. Then the position of the measuring rope 1 is recorded, the driving motor 32 is driven to lift the measuring cake 21, the measuring cake is taken out from the drilled hole 4, then the length of the measuring rope 1 and the height of the measuring mechanism 2 are measured, and the sum of the length of the measuring rope 1 and the height of the measuring mechanism 2 is subtracted from the depth of the hole bottom to obtain the thickness of the sediment 5.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a drilling sediment thickness detection device, includes measuring line (1), its characterized in that: the one end of survey rope (1) is equipped with measuring mechanism (2), the other end of survey rope (1) is equipped with hoisting mechanism (3), measuring mechanism (2) are including surveying cake (21) and hoist (22), hoist (22) are established in the one end that hoisting mechanism (3) were kept away from in survey rope (1), survey cake (21) joint and fix on hoist (22), survey cake (21) and be equipped with along vertical direction will survey water hole (211) of crossing that cake (21) run through.

2. The borehole sediment thickness detection device of claim 1, wherein: the lifting appliance (22) comprises a fixed claw disc (221) and movable claws (222), wherein one side, close to the rope measuring (1), of the fixed claw disc (221) is provided with a lifting ring (2211), one end, far away from the hoisting mechanism (3), of the rope measuring (1) is provided with a lifting hook (11) which is clamped and fixed in the lifting ring (2211), the movable claws (222) are connected to the fixed claw disc (221) in a sliding mode along the circumferential direction of the fixed claw disc (221), and the movable claws (222) are fixed to the fixed claw disc (221) through limiting assemblies (223).

3. The borehole sediment thickness detection device of claim 2, wherein: the fixed claw dish (221) is equipped with along the circumference of fixed claw dish (221) and bears arm (225), bear arm (225) and be equipped with spout (2251) that supplies movable jaw (222) to slide, spacing subassembly (223) include stop screw (2231) and stop nut (2232), stop screw (2231) are fixed on movable jaw (222), stop screw (2231) pass the lateral wall of spout (2251) and with stop nut (2232) threaded connection, stop nut (2232) and the outside looks butt of spout (2251) lateral wall, be equipped with on the lateral wall of spout (2251) and supply stop screw (2231) to carry out the regulation hole (2252) that slides.

4. The borehole sediment thickness detection device of claim 2, wherein: one end, far away from the fixed claw disc (221), of the movable claw (222) extends in the direction far away from the rope measuring (1) to form a claw part (2221), and one side, close to the axial lead of the fixed claw disc (221), of the claw part (2221) is provided with a butting plate (224).

5. The borehole sediment thickness detection device of claim 1, wherein: winding mechanism (3) include frame (31), driving motor (32) and reel (33), reel (33) rotate and set up in frame (31), driving motor (32) are located the one side of reel (33), and driving motor (32) are connected with reel (33) transmission through reduction gear group (34), frame (31) are equipped with gear box (311) outside reduction gear group (34).

6. The borehole sediment thickness detection device of claim 5, wherein: the speed reduction gear set (34) comprises a primary driving tooth (341) fixed at the output end of the driving motor (32), a primary speed reduction tooth (342) in meshing transmission with the primary driving tooth (341), a secondary driving tooth (343) in meshing transmission with the primary speed reduction tooth (342) and a secondary speed reduction tooth (344) in meshing transmission with the secondary driving tooth (343), wherein the secondary speed reduction tooth (344) is fixedly connected with the winding drum (33), the diameter of the primary driving tooth (341) is smaller than that of the primary speed reduction tooth (342), and the diameter of the secondary driving tooth (343) is smaller than that of the secondary speed reduction tooth (344).

7. The borehole sediment thickness detection device of claim 5, wherein: frame (31) are rectangle frame column structure, and frame (31) width direction's both ends are worn to be equipped with and are born steel pipe (35), bear steel pipe (35) and frame (31) and slide and be connected.

8. The borehole sediment thickness detection device of claim 7, wherein: the two ends of the bearing steel pipe (35) are provided with shock absorption seats (36), and the bearing steel pipe (35) is slidably arranged in the shock absorption seats (36).