Stratum space displacement measuring pipe device capable of being buried in drilled hole

Abstract

The utility model discloses a stratum space displacement measuring pipe device capable of being buried by drilling, the measuring pipe device is spliced by sections, the device comprises a conical cover, a traction device, a plurality of socketed pipe sections and a plurality of measuring pipe sections, the traction device comprises a bolt device, a power device, a recovery device and a traction fixed pulley, the first section of measuring pipe comprises a group of baffle plates, two bolt holes and two groups of instrument tracks, each section of measuring pipe is internally provided with the instrument track, and the sections of measuring pipe are connected with each other through socketed pipe sections and screws. The measuring pipe can solve the problem of underground damage repair of the measuring pipe, can be buried without earth cutting, and can measure transverse and vertical deformation at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of formation space detection, in particular to a drillable and embeddable formation space displacement measuring pipe device. Background Art

[0002] Existing measuring pipes are usually installed in vertical drill holes passing through unstable soil layers to stable strata below. A digital vertical inclinometer probe, control cable, pulley device and reading instrument are used to observe the deformation of the inclinometer pipe. The first observation can establish the initial cross-section of the displacement of the inclinometer pipe. Subsequent observations will show the change in cross-section displacement when the ground moves. During observation, the probe moves from the bottom to the top of the inclinometer pipe, pauses at half-meter intervals and conducts tilt measurement work.

[0003] After installation, a simulated inclinometer should be used for trial placement first. During the trial placement, both guide grooves of the inclinometer pipe that are perpendicular to each other should be tried from top to bottom to ensure that the simulated inclinometer can pass smoothly along the inclinometer pipe. In the actual use process, there are problems such as wire winding, fracture, and unsmooth entry of the instrument into the pipeline. If the wire is wound or fractured, the measuring pipe cannot be used, and a measuring pipe cannot measure lateral and vertical deformations simultaneously. Content of the Utility Model

[0004] The purpose of the utility model is to provide a drillable and embeddable formation space displacement measuring pipe device to solve the problem of underground damage repair of the measuring pipe, and to realize the function of burying without excavation and being able to measure lateral and vertical deformations with one measuring pipe simultaneously.

[0005] To achieve the above functions, the utility model designs a drillable and embeddable formation space displacement measuring pipe device. The measuring pipe device includes a conical cap 1, a traction device 6, and at least one sleeve pipe joint 3 and a measuring pipe joint 2. The top of the first measuring pipe joint 2 is closed with a conical cap 1, and the other end is open and spliced with other measuring pipe joints 2 through a sleeve pipe joint 3. The sleeve pipe joint 3 is fixed to each measuring pipe joint 2 by screws 7; instrument tracks 18 are symmetrically arranged in the horizontal and vertical directions on the inner wall of the measuring pipe joint 2. In the first measuring pipe joint 2, a set of baffles 4 are symmetrically arranged at a preset distance from the conical cap 1 on the instrument track 18 in the horizontal direction, and groove-shaped pin slots 5 are symmetrically arranged on the inner wall of the measuring pipe joint 2 at a preset distance from the baffles 4.

[0006] The traction device 6 includes a stopper, a recovery device, a power device 13, a fixed pulley 15, and a traction wire 16;

[0007] Among them, the locking device includes a pair of impact pins 8, a pair of horizontal pins 9, and a pair of connecting rods 11; the pair of impact pins 8 are located at the front end of the traction device 6, opposite to the position of the baffle 4, and the pair of horizontal pins 9 correspond to the pin slots 5 respectively; the impact pins 8 and the horizontal pins 9 are respectively connected by the connecting rods in an articulated manner; the impact pins 8 and the horizontal pins 9 respectively have their own fixed tracks and reciprocate within their respective tracks;

[0008] The power device 13 is embedded in the instrument track 18 and is in sliding contact with the instrument track 18, driving the traction device 6 to move on the instrument track 18;

[0009] The recovery device is respectively connected to the horizontal pin 9 and extends outside the measuring pipe section 2. By pulling the recovery device, the horizontal pin 9 is separated from the pin slot 5, and the traction device 6 is pulled out of the measuring pipe section 2 through the power device 13 to achieve the recovery of the traction device 6;

[0010] The fixed pulley 15 is installed at the end of the traction device 6 and is connected to the traction wire 16. The instrument is pulled by the traction wire 16 to run in the measuring pipe section 2 along the instrument track 18.

[0011] As a preferred technical solution of the present utility model: in the first measuring pipe section 2, a baffle 4 is provided at a position 2 cm away from the conical cover 1 on the instrument track 18 in the horizontal direction. The length of the baffle 4 is 4.2 cm and the width is 1.5 cm.

[0012] As a preferred technical solution of the present utility model: pin slots 5 are respectively provided at positions 3 cm to 4.5 cm away from the baffle 4, and the depth of the pin slots 5 is 1 cm.

[0013] As a preferred technical solution of the present utility model: the maximum moving distance of the impact pin 8 and the horizontal pin 9 within their fixed tracks is 1 cm.

[0014] As a preferred technical solution of the present utility model: the connection parts between the impact pin 8, the horizontal pin 9, and the connecting rod 11 are connected by bearings.

[0015] As a preferred technical solution of the present utility model: the center distance between the bearings at both ends of the connecting rod 11 is 2.732 cm, and the angle change range between the connecting rod 11 and the two types of pins is 30° to 60°.

[0016] As a preferred technical solution of the present utility model: the traction device 6 further includes rubber 10, and the rubber 10 fills the space around the horizontal pin 9 to keep it in the extended state when not under external force.

[0017] As a preferred technical solution of the present utility model: the power device 13 is a rod with pulleys at both ends, and its central bearing is equipped with a spring device, so that the pulleys at both ends expand outward and are sleeved into the instrument track 18, enabling the traction device 6 to move on the instrument track 18.

[0018] As a preferred technical solution of the present utility model: the recovery device includes a reel 12, a gear 14, and a pull rope 17. Among them, the reel 12 is connected to the horizontal bolt 9 through ropes respectively. A small gear with a diameter smaller than that of the gear 14 is provided at the axis of the reel 12, and the two are connected by a crawler. One end of the pull rope 17 is wound around the axis of the gear 14, and the other end extends to the outside of the measurement pipe section 2, so that when the pull rope 17 is pulled, the gear 14 rotates counterclockwise.

[0019] As a preferred technical solution of the present utility model: the fixed pulley 15 is installed at the central position of the end of the traction device 6, and its axis is along the horizontal direction.

[0020] Beneficial effects: Compared with the prior art, the advantages of the present utility model include:

[0021] The present utility model designs a drillable and embeddable formation space displacement measurement pipe device, which avoids the problems of chain entanglement and unsmooth entry of the instrument into the pipeline; by pulling the instrument with a traction wire, the problem that the instrument cannot be placed into the drill hole for detection due to its own weight can be solved; through the designed device, the recovery and reuse of the traction device can be realized, and the recycling and reuse of the device are achieved. Description of the Drawings

[0022] Figure 1 is a drillable and embeddable formation space displacement measurement pipe device provided according to an embodiment of the present utility model;

[0023] Figure 2 is a pipe orifice measurement diagram provided according to an embodiment of the present utility model;

[0024] Figure 3 is a detailed drawing of the traction device provided according to an embodiment of the present utility model;

[0025] Figure 4 is a detailed drawing of the locking device provided according to an embodiment of the present utility model;

[0026] In the figure: 1, conical cap; 2, measurement pipe section; 3, sleeve pipe section; 4, baffle; 5, bolt slot; 6, traction device; 7, screw; 8, impact bolt; 9, horizontal bolt; 10, rubber; 11, connecting rod; 12, reel; 13, power device; 14, gear; 15, fixed pulley; 16, traction wire; 17, pull rope; 18, instrument track. Detailed Embodiment

[0027] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and cannot be used to limit the protection scope of the present invention.

[0028] The present invention designs a device for measuring formation spatial displacement that can be buried by drilling. Refer to Figure 1 , a device for measuring formation spatial displacement that can be buried by drilling. The measuring tube device includes a conical cap 1, a traction device 6, and at least one sleeve pipe joint 3 and measuring tube joint 2. The top of the first measuring tube joint 2 is closed with a conical cap 1, and the other end is open. It is spliced with other measuring tube joints 2 through the sleeve pipe joint 3. The sleeve pipe joint 3 is fixed to each measuring tube joint 2 by screws 7; Refer to Figure 2 , on the inner wall of the measuring tube joint 2, instrument tracks 18 are symmetrically arranged in the horizontal and vertical directions respectively. Inside the first measuring tube joint 2, on the instrument track 18 in the horizontal direction, baffles 4 are symmetrically arranged at a distance from the conical cap 1. On the inner wall of the measuring tube joint 2 at a preset distance from the baffle 4, grooved pin slots 5 are symmetrically arranged;

[0029] In one embodiment, inside the first measuring tube joint 2, on the instrument track 18 in the horizontal direction, a baffle 4 is arranged at a distance of 2 cm from the conical cap 1. The length of the baffle 4 is 4.2 cm, and the width is 1.5 cm. Pin slots 5 are respectively arranged at a distance of 3 cm to 4.5 cm from the baffle 4, and the depth of the pin slots 5 is 1 cm.

[0030] The traction device 6 includes a locking device, a recovery device, a power device 13, a fixed pulley 15, and a traction wire 16;

[0031] Refer to Figure 3 , the locking device includes a pair of impact pins 8, a pair of horizontal pins 9, and a pair of connecting rods 11; The pair of impact pins 8 are located at the front end of the traction device 6 and are opposite to the position of the baffle 4. The pair of horizontal pins 9 respectively correspond to the pin slots 5; The impact pins 8 and the horizontal pins 9 are respectively movably connected through the connecting rods 11;

[0032] The connection points between the impact pins 8, the horizontal pins 9, and the connecting rods 11 are connected by bearings; The center distance between the bearings at both ends of the connecting rod 11 is 2.732 cm, and the angle change range between the connecting rod 11 and the two types of pins is 30° to 60°.

[0033] The impact pins 8 and the horizontal pins 9 respectively have their own fixed tracks and reciprocate within their respective tracks; The maximum moving distance of the impact pins 8 and the horizontal pins 9 within their fixed tracks is 1 cm, that is, the length of the two types of pins extending or retracting is about 1 cm; When the impact pin 8 hits the baffle 4 and is pressed back 1 cm, the horizontal pin 9 extends 1 cm under the pushing action of the connecting rod 11 and is respectively stuck in the pin slots 5;

[0034] The traction device 6 further includes a rubber 10 which fills the space around the horizontal bolt 9, keeping it in the extended state when no external force is applied.

[0035] Refer to the detailed drawing of the locking device Figure 4 The described locking device needs to meet the following conditions: 1. The friction coefficient between the rubber and steel in the horizontal bolt 9 is μ, and the critical condition for the connecting rod 11 to push the horizontal bolt 9 is: F·cosθ≥μF sinθ; 2. When b1 = 0, l(cosθ2 - cosθ1) < b3; the angles between the connecting rod 11 and the horizontal bolt 9 before and after displacement are θ1 and θ2, where F is the force applied axially to the connecting rod 11 during the operation of the locking device, θ is the angle between the horizontal bolt 9 and the connecting rod 11 at the start, b1 is the distance between the impact bolt 8 and the baffle 4, b3 is the distance that the horizontal bolt 9 can slide in the bolt slot 5, and l1 and l2 are the effective lengths of the impact bolt 8 and the horizontal bolt 9 respectively, that is, the distance from the bolt end to the central bearing.

[0036] The described power device 13 is embedded in the instrument track 18 and is in sliding contact with the instrument track 18, enabling the traction device 6 to move on the instrument track 18;

[0037] The power device 13 is a rod with pulleys at both ends, and its central bearing is equipped with a spring device, so that the pulleys at both ends expand outwards and are sleeved into the instrument track 18, enabling the traction device 6 to move on the instrument track 18.

[0038] The described recovery device is respectively connected to the horizontal bolt 9 and extends to the outside of the measurement pipe section 2. By pulling the recovery device, the horizontal bolt 9 is made to leave the bolt slot 5, and the traction device 6 is pulled out of the measurement pipe section 2 through the power device 13 to achieve the recovery of the traction device 6;

[0039] The recovery device includes a reel 12, a gear 14, and a pull rope 17. Among them, the reel 12 is connected to the horizontal bolt 9 through ropes respectively. A small gear with a diameter smaller than that of the gear 14 is provided at the axis of the reel 12, and the two are connected by a track. One end of the pull rope 17 is wound around the axis of the gear 14, and the other end extends to the outside of the measurement pipe section 2, so that when the pull rope 17 is pulled, the gear 14 rotates counterclockwise. When the pull rope 17 is pulled, the gear 14 rotates counterclockwise, driving the reel 12 to rotate counterclockwise through the track and the small gear. The reel 12 pulls inwards the rope connected to the horizontal bolt 9, making the horizontal bolt 9 contract and leave the bolt slot 5. When the horizontal bolt 9 is completely contracted to the end of its track, pulling the pull rope 17 further pulls the traction device 6 out of the measurement pipe section 2 along the instrument track 18 as a whole to complete the recovery of the traction device 6.

[0040] The fixed pulley 15 is installed at the center position of the end of the traction device 6, and its axis is in the horizontal direction. The fixed pulley 15 is connected to the traction wire 16, and the instrument is pulled along the instrument track 18 to run in the measuring pipe section 2 through the traction wire 16.

[0041] The working process of the measuring tube device designed by the utility model is as follows:

[0042] When used for the first time, install the conical cover 1 and the first measuring tube section 2, push the traction device 6 directly to the predetermined position of the first measuring tube section 2, so that the impact pin 8 is pressed in, and the connecting rod 11 pushes the horizontal pin 9 out of the traction device 6, and is correspondingly inserted into the pin slot 5, and the measuring tube section 2 and the sleeve tube section 3 are sleeved step by step, and then the measuring tube section 2 is placed in the borehole, and the traction wire 16 is pulled to make the instrument run normally in the instrument track 18. When the use is finished, pull the pull rope 17 in the recovery device to retract the horizontal pin 9 into the traction device 6 and disengage from the pin slot 5, and then pull the pull rope 17 to make the traction device 6 disengage along the instrument track 18, so as to realize the recovery of the traction device 6.

[0043] The following is an application example of the utility model:

[0044] Assuming that the friction coefficient μ between rubber and steel is about 0.3, according to the critical condition that the connecting rod can push the horizontal pin: F·cosθ≥μFsinθ, where θ is the angle between the horizontal pin 9 and the connecting rod 11 at the start, it is deduced that θ≤73.3. The distance between the bearing centers at both ends of the connecting rod 11 is l, and the angles between the connecting rod 11 and the horizontal pin 9 before and after the displacement are θ1 and θ2;

[0045] The displacement of the impact pin 8 is: l(sinθ1-sinθ2);

[0046] The displacement of the horizontal latch 9 is: Therefore, when When , the displacements of the two are equal;

[0047] In this embodiment, the displacement of the impact pin 8 and the horizontal pin 9 are designed to be 1 cm, that is, at the beginning, the extended part of the impact pin 8 is 1 cm long, and the horizontal pin 9 can be extended by 1 cm; the initial angle θ1 = 60. Then the design spacing between the bearing centers at both ends of the connecting rod 11 is about 2.732 cm, the angle between the connecting rod 11 and the two pins varies from 30° to 60°, and the pin slot 5 is set within the range of 3 cm to 4.5 cm from the baffle, that is, the width of the pin slot 5 is 1.5 cm;

[0048] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A drillable and embeddable formation space displacement measurement tube device, characterized in that, The measuring tube device includes a conical cap (1), a traction device (6), at least one sleeve pipe section (3) and a measuring tube section (2). The top of the first measuring tube section (2) is closed by the conical cap (1), and the other end is open. It is spliced with other measuring tube sections (2) through the sleeve pipe section (3). The sleeve pipe section (3) is fixed to each measuring tube section (2) by screws (7). Instrument tracks (18) are symmetrically arranged in the horizontal and vertical directions on the inner wall of the measuring tube section (2). In the first measuring tube section (2), a set of baffles (4) are symmetrically arranged at a preset distance from the conical cap (1) on the instrument track (18) in the horizontal direction. Groove-shaped pin slots (5) are symmetrically arranged on the inner wall of the measuring tube section (2) at a preset distance from the baffles (4). The traction device (6) includes a locking device, a recovery device, a power device (13), a fixed pulley (15), and a traction wire (16). Among them, the locking device includes a pair of impact pins (8), a pair of horizontal pins (9), and a pair of connecting rods (11). The pair of impact pins (8) are located at the front end of the traction device (6), opposite to the position of the baffles (4). The pair of horizontal pins (9) correspond to the pin slots (5) respectively. The impact pins (8) and the horizontal pins (9) are respectively connected by the connecting rods in a movable manner. The impact pins (8) and the horizontal pins (9) respectively have their own fixed tracks and reciprocate within their respective tracks. The power device (13) is embedded in the instrument track (18) and is in sliding contact with the instrument track (18), driving the traction device (6) to move on the instrument track (18). The recovery device is respectively connected to the horizontal pins (9) and extends outside the measuring tube section (2). By pulling the recovery device, the horizontal pins (9) are made to leave the pin slots (5), and the traction device (6) is pulled out of the measuring tube section (2) by the power device (13) to realize the recovery of the traction device (6). The fixed pulley (15) is installed at the end of the traction device (6) and is connected to the traction wire (16). The instrument is pulled along the instrument track (18) to run in the measuring tube section (2) through the traction wire (16).

2. The formation space displacement measurement tube device capable of being drilled and buried according to claim 1, wherein In the first measuring tube section (2), the baffles (4) are arranged at a distance of 2 cm from the conical cap (1) on the instrument track (18) in the horizontal direction. The length of the baffles (4) is 4.2 cm, and the width is 1.5 cm.

3. The formation space displacement measurement tube device capable of being buried by drilling according to claim 1, characterized in that, The pin slots (5) are respectively arranged at a distance of 3 cm to 4.5 cm from the baffles (4), and the depth of the pin slots (5) is 1 cm.

4. The formation space displacement measuring tube device capable of being buried by drilling according to claim 1, wherein The maximum moving distance of the impact pins (8) and the horizontal pins (9) within their fixed tracks is 1 cm.

5. The formation space displacement measuring tube device capable of being buried by drilling according to claim 1, characterized in that, The connections between the impact pins (8), the horizontal pins (9), and the connecting rods (11) are connected by bearings.

6. The drillable and embeddable formation space displacement measuring tube device according to claim 5, characterized in that, The center distance between the bearings at both ends of the connecting rod (11) is 2.732 cm, and the angle change range of the connecting rod (11) with the two types of pins is 30° to 60°.

7. The measuring pipe device for formation space displacement that can be buried by drilling according to claim 1, characterized in that The traction device (6) further includes rubber (10). The rubber (10) fills the space around the horizontal pins (9) to keep them in the extended state when not under external force.

8. The measuring tube device for formation space displacement that can be buried by drilling according to claim 1, characterized in that, The power device (13) is a rod with pulleys at both ends, and its central bearing is equipped with a spring device, so that the pulleys at both ends expand outwards and are sleeved into the instrument track (18), enabling the traction device (6) to move on the instrument track (18).

9. The formation space displacement measurement tube device capable of being drilled and buried according to claim 1, wherein, The recovery device includes a reel (12), a gear (14), and a pulling rope (17). The reel (12) is connected to the horizontal bolt (9) through ropes respectively. A pinion with a diameter smaller than that of the gear (14) is provided at the axis of the reel (12), and the two are connected by a crawler. One end of the pulling rope (17) is wound around the axis of the gear (14), and the other end extends to the outside of the measuring pipe section (2), so that when the pulling rope (17) is pulled, the gear (14) rotates counterclockwise.

10. The measuring tube device for formation space displacement that can be buried by drilling according to claim 1, wherein, The fixed pulley (15) is installed at the central position of the end of the traction device (6), and its axis is along the horizontal direction.

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