CN114527504A - Drilling embedded type sensor installation, fixation and recovery integrated device - Google Patents

Abstract

A drilling embedded type sensor mounting, fixing and recycling integrated device integrally adopts a circular pole structure and is divided into a sensor mounting section, an anchoring section and a holding regulation and control section; the sensor mounting section, the anchoring section and the holding regulation section are sequentially distributed, and the sensor mounting section and the anchoring section as well as the anchoring section and the holding regulation section are fixedly connected through inter-section connecting plates; the sensor mounting section is used for mounting a sensor; the anchoring section is used for anchoring and matching with the hole wall of the drill hole; the holding regulating section is used for controlling the anchoring and separation of the anchoring section and the hole wall of the drill hole and also used as a hand holding handle; the number of the anchoring sections is at least one, and when the number of the anchoring sections is multiple, the adjacent anchoring sections are fixedly connected through the inter-section connecting plates. The sensor fixing device abandons the traditional gluing fixing mode, adopts a mechanical fixing mode to realize the mounting and fixing of the sensor in the drill hole, meets the mounting and fixing requirements of the sensor in the drill hole with any angle, is not influenced by gravity, and can realize the recovery after the use of the sensor is finished.

Description

An integrated device for installation, fixation and recovery of a borehole buried sensor

technical field

The invention belongs to the technical field of geotechnical and mining engineering, in particular to an integrated device for installation, fixation and recovery of a borehole buried sensor.

Background technique

Geotechnical and mining engineering mainly refer to some construction projects such as slopes, tunnels and mines. During the construction of tunnels or mines, external factors such as engineering disturbances may cause deformation, displacement or even collapse of the tunnels or mines. For real-time microseismic monitoring, it is necessary to drill holes in the rock wall and fix the sensor in it to meet the needs of real-time microseismic monitoring. However, when installing a borehole embedded sensor, the traditional method is to use viscous material to fix the sensor. Once the drilled hole has an angle with the horizontal plane, the sensor is seriously affected by gravity, and the fixing effect of the viscous material is not good. Ideally, due to the weak bonding, it is easy to cause the sensor to fall off and reduce the accuracy of data acquisition. In addition, for the sensors that have been glued and fixed in the borehole, the sensor cannot be recycled, and can only be abandoned in the borehole after use, thereby increasing the monitoring cost.

SUMMARY OF THE INVENTION

In view of the problems existing in the prior art, the present invention provides an integrated device for installation, fixation and recovery of a borehole buried sensor, which abandons the traditional adhesive fixing method and adopts a mechanical fixing method to realize the fixed installation of the sensor in the borehole. , it can meet the installation and fixation of the sensor in any angle of drilling, and is not affected by the effect of gravity, and can be successfully recovered after the sensor is used, and the recovered sensor can be reused, which effectively reduces the monitoring cost.

In order to achieve the above object, the present invention adopts the following technical solutions: an integrated device for installation, fixation and recovery of a borehole embedded sensor, which adopts a circular rod-column structure as a whole and is divided into a sensor placement section, an anchoring section and a holding control section; The sensor placement section, the anchoring section and the holding control section are distributed in sequence, and the sensor placement section and the anchor section, and between the anchor section and the holding control section are all fixedly connected by an inter-segment connecting plate; the sensor placement section is used for The sensor is installed; the anchoring section is used for anchoring and cooperating with the borehole wall; the holding regulation section is used to control the anchoring and separation of the anchoring section and the borehole wall, and the holding regulation section is also used as a hand grip handle .

The number of the anchoring segments is at least one, and when the number of the anchoring segments is more than one, the adjacent anchoring segments are fixedly connected by inter-segment connecting plates.

The sensor placement section includes a sensor limit sleeve and a sensor axial limit baffle; the top cylinder opening of the sensor limit sleeve serves as an insertion port for the sensor, and the sensor axial limit baffle is fixedly arranged at the sensor limit. On the inner side of the middle and lower part of the position sleeve, the sensor limit sleeve below the sensor axial limit baffle is provided with a data line threading hole of the sensor.

The anchoring section includes an anchoring support cylinder, a force transmission rod, a force transmission platform and an anchor nail; the top cylinder opening of the anchoring support cylinder is coaxially connected to the bottom cylinder opening of the sensor limiting sleeve through an inter-section connecting plate; The force transmission platform adopts an inverted conical truncated structure, the large diameter end of the force transmission platform is directly opposite to the inter-section connecting plate on one side of the sensor limit sleeve, and a reset is fixedly connected between the force transmitting platform and the inter-section connecting plate. a spring; the upper end of the power transmission rod is fixedly connected with the small diameter end of the power transmission platform; the wall of the anchoring support cylinder is provided with an anchor through hole, and the anchor is located in the anchor through hole; A guide chute is arranged on the conical surface of the force transmission platform, a guide slider is arranged in the guide chute, and the inner end of the anchor is hinged on the guide slider.

The number of the guide chutes is several, and the guide chutes are evenly distributed along the circumferential direction. Each guide chutes is equipped with a guide slider, and each guide slider is hinged with an anchor; The number of exit holes and anchors is the same, and the anchor holes are in one-to-one correspondence with the positions of the anchors.

The holding and regulating section includes a holding cylinder, a guide frame and a regulating nut; the top cylinder opening of the holding cylinder is coaxially connected to the bottom end cylinder opening of the anchoring support cylinder through an inter-section connecting plate; The outer surface of the middle cylinder of the holding cylinder is provided with an external thread, and the regulating nut is screwed and matched with the holding cylinder through the external thread; a guide is provided on the cylinder wall of the external thread section of the holding cylinder along the axial direction. a slot hole; the guide frame is located inside the holding cylinder, and a guide limit bump is arranged in the circumferential direction of the guide frame, and the limit bump passes through the guide slot hole and extends to the outside of the holding cylinder; the limit The convex block is located below the regulating nut, and a force transmission sleeve is arranged on the outside of the holding cylinder between the limiting convex block and the regulating nut.

The number of the guide and limit protrusions is several, and the several guide and limit protrusions are evenly distributed along the circumferential direction of the guide frame; the number of the guide slot holes and the guide limit protrusions are the same, and the guide groove holes and the guide limit protrusions are the same. The positions of the blocks correspond one-to-one.

When the number of the anchoring sections is one, a force transmission through hole is formed in the middle of the inter-section connecting plate at the bottom end of the anchoring support cylinder, and a force transmission connecting rod is pierced in the force transmission through hole; The upper end of the force connection rod is fixedly connected with the lower end of the force transmission rod, and the lower end of the force transmission connection rod is fixedly connected with the guide frame inside the holding cylinder.

When the number of the anchoring segments is multiple, the cylinder openings of the adjacent anchoring support cylinders are coaxially connected together by inter-segment connecting plates, and a force transmission through hole is also opened in the middle of the inter-segment connecting plates. , and a force transmission connecting rod is also penetrated in the force transmission through hole; the upper end of the force transmission connecting rod is fixedly connected with the lower end of the force transmission rod in the upper anchoring support cylinder, and the lower end of the force transmission connecting rod is connected with the lower end of the anchoring support cylinder. The upper end of the dowel rod is fixedly connected.

Beneficial effects of the present invention:

The invention provides an integrated device for installation, fixation and recovery of a borehole buried sensor, which abandons the traditional adhesive fixing method, adopts a mechanical fixing method to realize the fixed installation of the sensor in the borehole, and can install the sensor in the borehole at any angle. It satisfies the installation and fixation of the sensor, and is not affected by the effect of gravity, and can be successfully recycled after the sensor is used, and the recycled sensor can be reused, which effectively reduces the monitoring cost.

Description of drawings

1 is a schematic structural diagram of an integrated device for installation, fixation and recovery of a borehole buried sensor according to the present invention;

2 is a schematic structural diagram of an integrated device for installation, fixation and recovery of a borehole buried sensor according to the present invention (cross-sectional view);

Fig. 3 is the enlarged view of A part in Fig. 2;

In the figure, I—sensor placement segment, II—anchoring segment, III—holding and regulating segment, 1—connecting plate between segments, 2—sensor, 3—sensor limit sleeve, 4—sensor axial limit baffle, 5—Data cable threading hole, 6—Anchor support cylinder, 7—Door rod, 8—Force transmission platform, 9—Anchor bolt, 10—Return spring, 11—Anchor bolt through hole, 12—Guide chute, 13 —Guide slider, 14—Holding cylinder, 15—Guide frame, 16—Adjustment nut, 17—Guide slot hole, 18—Guide limit bump, 19—Force transmission sleeve, 20—Force transmission through hole, 21—Power transmission connecting rod.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 to 3, an integrated device for installation, fixation and recovery of a borehole buried sensor adopts a circular pole-column structure as a whole, and is divided into sensor placement section I, anchoring section II and holding control section III; The sensor placement section I, the anchoring section II and the holding control section III are distributed in sequence, and the sensor placement section I and the anchoring section II and between the anchoring section II and the holding control section III are all fixedly connected through the inter-section connecting plate 1; The sensor placement section I is used to install the sensor 2; the anchoring section II is used to anchor and cooperate with the borehole wall; the grip regulation section III is used to control the anchoring and separation of the anchoring section II and the borehole wall, And the holding control section III also serves as a hand holding handle.

The number of the anchoring segments II is at least one, and when the number of the anchoring segments II is multiple, the adjacent anchoring segments II are fixedly connected through the inter-segment connecting plate 1 .

The sensor placement section 1 includes a sensor limit sleeve 3 and a sensor axial limit baffle 4; the top barrel opening of the sensor limit sleeve 3 serves as an insertion port for the sensor 1, and the sensor axial limit baffle 4 is fixedly arranged on the inner side of the middle and lower part of the sensor limit sleeve 3, and the data line threading hole 5 of the sensor 1 is opened in the sensor limit sleeve 3 below the sensor axial limit baffle 4.

The anchoring section II includes an anchoring support cylinder 6, a power transmission rod 7, a power transmission platform 8 and an anchor 9; The cylinder mouths are coaxially connected together; the force transmission platform 8 adopts an inverted conical truncated structure, and the large diameter end of the force transmission platform 8 is directly opposite to the inter-section connecting plate 1 on one side of the sensor limit sleeve 3, and the force transmission platform 8 is in the same direction. A return spring 10 is fixedly connected between the platform 8 and the inter-section connecting plate 1; the upper end of the force transmission rod 7 is fixedly connected with the small diameter end of the force transmission platform 8; an anchor is provided on the cylinder wall of the anchoring support cylinder 6 The nail passes through the hole 11, and the anchor 9 is located in the anchor through hole 11; the conical surface of the force transmission platform 8 is provided with a guide chute 12, and a guide slider 13 is provided in the guide chute 12 , the inner end of the anchor 9 is hinged on the guide slider 13 .

The number of the guide chutes 12 is several, and the guide chutes 12 are evenly distributed along the circumferential direction. Each guide runner 12 is provided with a guide slider 13, and each guide slider 13 is hinged with an anchor 9. ; The number of the anchor holes 11 and the anchors 9 is the same, and the positions of the anchor holes 11 and the anchors 9 correspond one-to-one.

The holding and regulating section III includes a holding cylinder 14, a guide frame 15 and a regulating nut 16; connected together; the outer surface of the middle cylinder of the holding cylinder 14 is provided with an external thread, and the regulating nut 16 is screwed with the holding cylinder 14 through the external thread; A guide slot 17 is provided on the cylindrical wall of the threaded section along the axial direction; the guide frame 15 is located inside the holding cylinder 14 , and a guide limit bump 18 is arranged in the circumferential direction of the guide frame 15 , and the limit bump 18 penetrates Through the guide slot 17 and extending to the outside of the holding cylinder 14; Force sleeve 19 .

The number of the guide limit protrusions 18 is several, and the guide limit protrusions 18 are evenly distributed along the circumferential direction of the guide frame 15; the guide groove holes 17 and the guide limit protrusions 18 have the same number, and the guide groove holes 17 is in one-to-one correspondence with the positions of the guide limiting projections 18 .

When the number of the anchoring sections II is one, a force transmission through hole 20 is opened in the middle of the inter-section connecting plate 1 at the bottom end of the anchoring support cylinder 6, and a force transmission connection is pierced in the force transmission through hole 20. Rod 21 ; the upper end of the force transmission connecting rod 21 is fixedly connected with the lower end of the force transmission rod 7 , and the lower end of the force transmission connecting rod 21 is fixedly connected with the guide frame 15 inside the holding cylinder 14 .

When the number of the anchoring sections II is multiple, the cylinder openings of the adjacent anchoring support cylinders 6 are coaxially connected together by the inter-section connecting plate 1, and the middle of the inter-section connecting plate 1 is also provided with The force transmission through hole 20 is also pierced with a force transmission connecting rod 21; the upper end of the force transmission connecting rod 21 is fixedly connected with the lower end of the power transmission rod 7 in the upper anchoring support cylinder 6, and the force transmission is connected. The lower end of the rod 21 is fixedly connected with the upper end of the transmission rod 7 in the lower anchoring support cylinder 6 .

Describe one use process of the present invention below in conjunction with accompanying drawing:

When the drilling process is completed in the rock wall, first insert the selected sensor 1 into the sensor limit sleeve 3. During the process of inserting the sensor 1, the data line of the sensor 1 needs to be removed from the sensor limit sleeve 3. Pass the data cable through the hole 5. After the sensor 1 is fixed, turn the sensor 1 inward and insert the sensor placement section I and the anchoring section II into the rock wall hole completely. Only the holding control section III is left outside the hole. , and at the same time ensure that the data line of sensor 1 also extends out of the hole.

After the sensor 1 is inserted into the drilled hole, for the holding control section III left outside the drilled hole, it is necessary to hold the bottom end of the holding cylinder 14 with one hand, the control nut 16 with the other hand, and then screw Twist the adjusting nut 16 to move the adjusting nut 16 downward in the axial direction, and the moving adjusting nut 16 will drive the guide limiting projection 18 to move down synchronously along the guide slot 17 through the force transmission sleeve 19 .

As the guide limiting projection 18 moves downward in the guide slot 17, the guide frame 15, the force transmission connecting rod 21, the force transmission rod 7 and the force transmission table 8 are sequentially driven to move downward synchronously. The movement of the return spring 10 will cause the return spring 10 to be elongated to accumulate spring force. At the same time, with the movement of the force transmission platform 8, the conical surface of the force transmission platform 8 will generate a radial pressing force on the guide slider 13 on the guide chute 12, forcing the guide slider 13 to produce relative slip on the guide chute 12 During the movement, radial displacement will also occur. With the radial displacement of the guide slider 13, the anchor 9 will be pushed to move outward along the anchor through hole 11 until the nail tip of the anchor 9 passes through the anchor support cylinder. 6 and tie it on the wall of the drilled hole until the regulating nut 16 can’t be turned. At this time, the anchor 9 can be firmly tied on the wall of the drilled hole to realize the fixation of the device, and the sensor 1 is synchronously completed with the device. Mounting in the hole is fixed.

After the sensor 1 is used, the sensor 1 needs to be recovered. At this time, the regulating nut 16 needs to be reversely rotated to move the regulating nut 16 upward in the axial direction. The pushing force of the position bump 18 is synchronously unloaded. At this time, the spring force of the return spring 10 begins to act. The return spring 10 releases the spring force step by step and gradually shortens the reset. Down, it will sequentially drive the force transmission platform 8, the transmission rod 7, the force transmission connecting rod 21 and the guide frame 15 to move upward. With the movement of the guide frame 15, the guide limit bumps 18 will move upwards synchronously along the guide slot 17. Move, so that the guide limit protrusion 18, the force transmission sleeve 19 and the regulating nut 16 are always abutted together.

With the upward movement of the force transmission platform 8, the conical surface of the force transmission platform 8 will generate a radial pulling force on the guide slider 13 on the guide chute 12, forcing the guide slider 13 to produce a relative sliding motion on the guide chute 12 At the same time, radial displacement is generated. With the radial displacement of the guide slider 13, the anchor 9 will be pulled to move inward along the anchor through hole 11, so that the anchor 9 is separated from the wall of the drilled hole until the anchor 9 Completely retract into the anchor through hole 11, at this time, the anchoring state of the device is released, and then the entire device can be pulled out from the drill hole, and finally the sensor 1 is removed from the sensor limit sleeve 3. It can be used as a spare until it is used again and then reinstalled, thus realizing the recovery of the sensor 1.

The solutions in the embodiments are not intended to limit the scope of the patent protection of the present invention, and all equivalent implementations or modifications that do not depart from the present invention are included in the scope of the patent of this case.

Claims (9)

1. An integrated device for installation, fixation and recovery of a borehole embedded sensor is characterized in that: a circular pole-column structure is adopted as a whole, which is divided into a sensor placement section, an anchoring section and a holding control section; the sensor placement section, The anchoring sections and the holding control sections are distributed in sequence, and the sensor placement section and the anchoring section and between the anchoring section and the holding control section are fixedly connected by inter-section connecting plates; the sensor placement section is used to install the sensor; the anchorage The segment is used for anchoring and cooperating with the borehole wall; the holding regulation segment is used to control the anchoring and separation of the anchor segment and the borehole wall, and the holding regulation segment also serves as a hand grip handle. 2 . The integrated device for installation, fixation and recovery of a borehole buried sensor according to claim 1 , wherein the number of said anchoring sections is at least one, and when the number of anchoring sections is multiple, adjacent anchoring sections The segments are fixedly connected by inter-segment connecting plates. 3. An integrated device for installation, fixation and recovery of a borehole buried sensor according to claim 2, wherein the sensor placement section comprises a sensor limit sleeve and a sensor axial limit baffle; The top cylinder opening of the sensor limit sleeve is used as the insertion port of the sensor, the sensor axial limit baffle is fixedly arranged on the inner side of the middle and lower part of the sensor limit sleeve, and the sensor limit below the sensor axial limit baffle The sleeve is provided with a data line threading hole for the sensor. 4 . The integrated device for installation, fixation and recovery of a borehole embedded sensor according to claim 3 , wherein the anchoring section comprises an anchoring support cylinder, a dowel rod, a force transmitting platform and an anchor; The top cylinder opening of the anchoring support cylinder is coaxially connected to the bottom cylinder opening of the sensor limiting sleeve through the inter-section connecting plate; The inter-section connecting plate on one side of the position sleeve is facing each other, and a return spring is fixedly connected between the force-transmitting platform and the inter-section connecting plate; the upper end of the force-transmitting rod is fixedly connected with the small diameter end of the force-transmitting platform; The wall of the anchoring support cylinder is provided with an anchor through hole, and the anchor is located in the anchor through hole; a guide chute is provided on the conical surface of the force transmission platform, and a guide chute is arranged in the guide chute. There is a guide slider, and the inner end of the anchor is hinged on the guide slider. 5. An integrated device for installation, fixation and recovery of a borehole embedded sensor according to claim 4, wherein the number of the guide chutes is several, the guide chutes are evenly distributed along the circumferential direction, and each guide A guide slider is arranged in the chute, and each guide slider is hinged with an anchor; the number of the anchor holes and the anchors are the same, and the positions of the anchor holes and the anchor are the same. A correspondence. 6 . The integrated device for installation, fixation and recovery of a borehole embedded sensor according to claim 5 , wherein the holding control section comprises a holding cylinder, a guide frame and a control nut; The top cylinder mouth of the holding cylinder is coaxially connected with the bottom end cylinder mouth of the anchoring support cylinder through the inter-section connecting plate; the outer surface of the middle cylinder of the holding cylinder is provided with an external thread, and the regulating nut passes through the external thread It is screwed and matched with the holding cylinder; a guide slot hole is axially opened on the cylinder wall of the external thread section of the holding cylinder; the guide frame is located inside the holding cylinder and is arranged in the circumferential direction of the guide frame There are guide and limit bumps, the limit bumps pass through the guide slot holes and extend to the outside of the holding cylinder; the limit bumps are located under the control nut, and the holding circle between the limit bumps and the control nut The outer side of the cylinder is provided with a force transmission sleeve. 7 . The integrated device for installation, fixation and recovery of a borehole buried sensor according to claim 6 , wherein the number of the guide limit bumps is several, and the guide limit bumps are along the guide frame. 8 . The circumferential direction is evenly distributed; the number of the guide slot holes and the guide limit bumps is the same, and the guide slot holes correspond to the positions of the guide limit bumps one-to-one. 8 . The integrated device for installation, fixation and recovery of a borehole embedded sensor according to claim 7 , wherein when the number of the anchoring sections is one, the bottom end of the anchoring support cylinder is located at the cylinder opening of the bottom end. There is a force transmission through hole in the middle of the inter-section connection plate, and a force transmission connection rod is pierced in the force transmission through hole; the upper end of the force transmission connection rod is fixedly connected with the lower end of the force transmission rod, and the lower end of the force transmission connection rod is connected to the Hold the guide frame inside the cylinder for a fixed connection. 9 . The integrated device for installation, fixation and recovery of a borehole buried sensor according to claim 8 , wherein when the number of the anchoring sections is multiple, the cylinder mouth of the anchoring support cylinder is adjacent to the cylinder opening. 10 . They are all coaxially connected together by the inter-section connecting plate, and a force-transmitting through hole is also opened in the middle of the inter-section connecting plate, and a force-transmitting connecting rod is also penetrated in the force-transmitting through hole; The upper end of the power transmission rod is fixedly connected with the lower end of the force transmission rod in the upper anchoring support cylinder, and the lower end of the force transmission connecting rod is fixedly connected with the upper end of the transmission rod in the lower anchoring support cylinder.

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