CN112377128B - Locator is retrieved with freedom in installation of drilling stressmeter - Google Patents
Locator is retrieved with freedom in installation of drilling stressmeter Download PDFInfo
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- CN112377128B CN112377128B CN202011257573.4A CN202011257573A CN112377128B CN 112377128 B CN112377128 B CN 112377128B CN 202011257573 A CN202011257573 A CN 202011257573A CN 112377128 B CN112377128 B CN 112377128B
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- 238000005553 drilling Methods 0.000 title claims abstract description 8
- 238000009434 installation Methods 0.000 title claims description 26
- 230000000670 limiting effect Effects 0.000 claims abstract description 38
- 238000011084 recovery Methods 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a drilling stressometer mounting and free recovery locator which comprises a base, a guide post, a sleeve, a latch, a support rod, an elastic piece and a limiting mechanism, wherein the guide post is arranged on the base; the guide post is fixedly arranged on the base, and the sleeve is wound on the outer side of the guide post and can move along the length direction of the guide post; two ends of the latch are respectively a hinged end and an inserting end, and the hinged end is hinged with the base; the two ends of the supporting rod are respectively hinged with the middle part of the latch and the sleeve; when the sleeve moves towards the direction of the base, the support rod can push the insertion end to swing towards the direction back to the guide column; the elastic part and the limiting mechanism are both arranged on the guide post, and the elastic part is used for pushing the sleeve to move towards the base; the limiting mechanism is used for limiting the sleeve to move towards the base. The locator of the invention utilizes the elastic element to push the sleeve to expand the latch so as to realize the fixation of the stress meter in the deep well, and when the stress meter is recovered, the latch can withdraw from the well wall only by overcoming the spring force, thus realizing the nondestructive recovery of the stress meter.
Description
Technical Field
The invention relates to the technical field of deep well ground stress detection, in particular to a locator for installing and freely recovering a borehole stressometer.
Background
At present, the placement and fixation of the strain gauge at a predetermined position of a deep well are realized by: a spring and a latch are arranged in an outer sleeve of the strain gauge, and a horn mouth is formed in the side wall of the outer sleeve. After the stress gauge is slowly placed to a preset position, the spring and the latch are pushed to the bell mouth by a tool, finally, the latch is transversely pushed out from the bell mouth by the elastic force of the spring, and after the latch is inserted into the well wall of the deep well, the stress gauge is fixed in the deep well.
However, the above devices and solutions have the disadvantages that: the latch can not be smoothly withdrawn from the well wall, and the stress gauge can be recovered only by destroying the positioning structure.
Disclosure of Invention
The invention aims to provide a borehole stressmeter installation and free recovery locator, which is helpful for solving the technical problems.
The invention is realized by the following steps:
a locator for mounting and freely recovering a borehole stressometer comprises a base, a guide post, a sleeve, a latch, a support rod, an elastic part and a limiting mechanism; the guide post is fixedly arranged on the base, and the sleeve is wound on the outer side of the guide post and can move along the length direction of the guide post; two ends of the latch are respectively a hinged end and an inserting end, the hinged end is hinged with the base, and the inserting end is used for being inserted into a well wall; the two ends of the supporting rod are respectively hinged with the middle part of the latch and the sleeve; when the sleeve moves towards the direction of the base, the support rod can push the insertion end to swing towards the direction away from the guide column; the elastic part and the limiting mechanism are both arranged on the guide post, and the elastic part is used for pushing the sleeve to move towards the direction of the base; the limiting mechanism is used for limiting the sleeve to move towards the base.
The borehole stressmeter installation and free recovery locator mainly comprises three processes when in use:
(1) strain gage lowering process
The elastic part is loaded and the limiting mechanism is fixed at the position with the limiting function, so that the sleeve and the base keep the farthest distance. At this moment, the intersection point of latch and base is farthest away from bracing piece and telescopic pin joint, also the latch all is close the laminating guide post with the bracing piece, and the latch plays and does not play the fixed effect of inserting the wall of a well location, can put into the deep well smoothly.
(2) Stress gauge positioning process
After the predetermined position of deep well is slowly transferred to stress meter equipment, utilize instrument drive stop gear for stop gear leaves the position that plays limiting displacement, then the sleeve is close to the base along the length direction of guide post under the elastic component's elasticity effect, drives the grafting end that the bracing piece propped up the latch, and the grafting end of latch is towards the direction swing of the axis that deviates from the guide post and inserts the wall of a well depths and realize the location.
(3) Stressometer recovery process
When the stress gauge fails or needs to be taken out from the deep well for routine maintenance, the base is directly extracted by using the ground steel cable, the latch swings downwards (namely, the connection end gradually approaches to the guide post) under the pressure of the well wall, and the sleeve is pushed to be far away from the base through the support rod. Because the structure that the restriction sleeve removed only elastic component, and the latch can bear the effort and be close to the guide post down at the elastic component, so, the latch can not harm the recovery, and whole stressometer's equipment also can not harm the recovery.
Furthermore, the limiting mechanism comprises a swing rod; the guide post is a hollow cylinder, and a through hole is formed in the side wall of the guide post; the swing rod is hinged to the inner wall of the guide column; when the swing rod is located at the initial position, one end of the swing rod penetrates through the through hole, and after the swing rod swings for a set angle, the swing rod returns to the guide column. The technical effects are as follows: one end of the swing rod penetrates out of the through hole to limit the sleeve to move towards the base, and the swing rod can be conveniently and rapidly changed in a hinged mode, so that the latch is guaranteed to be smoothly inserted into the well wall.
Furthermore, the limiting mechanism also comprises a driving device; the driving device is arranged in an inner cavity of the guide post and used for driving the swing rod to return to the guide post. The technical effects are as follows: the driving device is arranged in the guide post, and the swing rod can be driven to realize a limiting function at a proper position and in a proper time according to requirements.
Further, the driving device comprises a power cylinder, a motor and an eccentric wheel; the power cylinder is arranged on the base and communicated with the inner cavity of the guide column; the motor is arranged in the power cylinder and drives the swing rod to swing through the eccentric wheel. The technical effects are as follows: the motor and the eccentric wheel convert the rotating mechanical energy into the swing kinetic energy of the swing rod, so that the swing rod is prevented from being pushed or impacted, and the normal and stable operation of the stress meter is ensured.
Further, the driving device also comprises a gear set and a rotating rod; the rotating rod is arranged in the power cylinder along the axial direction of the power cylinder, the motor is connected with the rotating rod through the gear set, and the eccentric wheel is arranged on the rotating rod; the motor drives the rotating rod to rotate through the gear set, and the rotating rod pushes the swing rod to swing through the eccentric wheel. The technical effects are as follows: because the rotating rod is arranged along the axis direction of the power cylinder, after the bearing is arranged, the load borne by the gear set and the eccentric wheel can be uniformly dispersed into the power cylinder, and the working environment of the stress meter is more stable.
Furthermore, the limiting mechanism also comprises a return spring; the reset spring is arranged in the inner cavity of the guide column and used for driving one end of the swing rod to penetrate out of the through hole. The technical effects are as follows: the reset spring can push one end of the swing rod to penetrate out of the through hole, and the swing rod is prevented from being separated from the through hole under the action of gravity, so that the limiting effect cannot be realized.
Further, the elastic piece is a spiral spring; the spiral spring is wound on the guide post and positioned on one side of the sleeve, which deviates from the base. The technical effects are as follows: compared with a spring piece or an extension spring, the spiral spring is wound on the guide post, the pushing acting force on the sleeve is more uniform, and the expansion of the latch has a more balanced effect.
Furthermore, a spring stop is arranged on the guide post; one end of the spiral spring is contacted with the sleeve, and the other end of the spiral spring is contacted with the spring stop. The technical effects are as follows: compare in the guide post with coil spring's one end welding, set up the spring fender in the one end of guide post, do benefit to coil spring's dismouting, also can guarantee coil spring's accurate positioning.
Further, the number of the clamping teeth is multiple; the plurality of clamping teeth are uniformly distributed around the circumferential direction of the guide post. The technical effects are as follows: a single latch can only be inserted towards one aspect of the well wall to realize positioning, and a plurality of latches are uniformly distributed to disperse the inserting and fixing effect of the latch, so that the strain gauge equipment is prevented from inclining in a deep well.
Further, the maximum included angle between the length direction of the latch and the length direction of the guide post is smaller than 90 degrees. The technical effects are as follows: in the process that the sleeve is close to the base, the included angle between the latch and the guide post is gradually increased, and when the included angle is 40-60 degrees, the inserting and fixing effect of the latch is optimal. When the included angle is equal to or larger than 90 degrees, the inserting acting force of the latch is decomposed into a part to offset the gravity of the latch, so that the positioning effect is greatly reduced. The angle between the latch and the guide post is preferably set to within 90 degrees, and particularly, should be set to between 40 and 60 degrees.
The invention has the beneficial effects that:
1. the drilling stress meter mounting and free recovery locator provided by the invention has the advantages that the elastic piece is utilized to push the sleeve to expand the latch, so that the stress meter is fixed in a deep well, and when the stress meter is recovered, the latch can be withdrawn from the well wall only by overcoming the spring force, so that the nondestructive recovery of the stress meter is realized.
2. The drilling stress meter mounting and freely recovering positioner does not need to design a corresponding horn mouth according to the position and the structure of the latch, reduces the precision requirement and simplifies the production and manufacturing process.
3. The drilling stressometer mounting and freely-recovering positioner does not have the condition that spring force directly acts on the horn mouth through the latch, and avoids the potential safety hazards of damage, injury and the like of the horn mouth, of a pressure magnetic probe and the like.
4. According to the drilling stress meter installation and free recovery locator, the latch can be nondestructively contracted, and the problems of corresponding design and working requirements of the latch and a horn mouth do not need to be considered, so that the stress meter and a matched device thereof can be positioned at any depth.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a borehole stressor meter installation and free recovery locator provided in accordance with a first embodiment of the present invention;
FIG. 2 is a schematic view of a partial structure of a first borehole stress gauge installation and free recovery locator according to a second embodiment of the present invention;
FIG. 3 is a schematic view of a second embodiment of the present invention showing a partial structure of a free recovery locator for installing a borehole stress gauge;
fig. 4 is a partial structural schematic diagram of a borehole stressor meter installation and free recovery locator provided in accordance with a third embodiment of the present invention.
Icon: 100-a base; 200-a guide post; 210-a via; 300-a sleeve; 400-latch; 410-a hinged end; 420-a plug end; 500-support rods; 600-an elastic member; 700-a limiting mechanism; 710-a swing link; 720-a stop block; 730-a power cartridge; 740-a motor; 750-eccentric wheel; 760-gear set; 770-a rotating rod; 780-a return spring; 800-spring catch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention that are generally described and illustrated in the figures can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The first embodiment:
fig. 1 is a schematic structural diagram of a borehole stress gauge installation and free recovery locator according to a first embodiment of the present invention. Referring to fig. 1, the present embodiment provides a borehole stressor meter installation and free recovery locator, which includes a base 100, a guide post 200, a sleeve 300, a latch 400, a support rod 500, an elastic member 600, and a limiting mechanism 700.
Wherein, the guide post 200 is fixedly arranged on the base 100, and the sleeve 300 is wound on the outer side of the guide post 200 and can move along the length direction of the guide post 200; two ends of the latch 400 are respectively a hinged end 410 and an inserting end 420, the hinged end 410 is hinged with the base 100, and the inserting end 420 is used for being inserted into a well wall; the two ends of the supporting rod 500 are respectively hinged with the middle part of the latch 400 and the sleeve 300; when the sleeve 300 moves towards the base 100, the supporting rod 500 can push the inserting end 420 to swing away from the guiding column 200; the elastic element 600 and the limiting mechanism 700 are both arranged on the guide post 200, and the elastic element 600 is used for pushing the sleeve 300 to move towards the base 100; the limiting mechanism 700 is used for limiting the movement of the sleeve 300 towards the base 100.
The working principle and the working process of the borehole stressometer installation and free recovery locator are as follows:
(1) strain gage lowering process
The elastic member 600 is loaded and the position limiting mechanism 700 is fixed at a position for limiting, so that the sleeve 300 is kept at the farthest distance from the base 100. At this time, the intersection point of the latch 400 and the base 100 is farthest away from the hinge point of the support rod 500 and the sleeve 300, that is, the latch 400 and the support rod 500 are both close to the fitting guide post 200, and the latch 400 cannot be inserted into the well wall for positioning and fixing, and can be smoothly placed into the deep well.
(2) Stress gauge positioning process
After the strain gauge equipment is slowly lowered to a preset position of a deep well, the limiting mechanism 700 is driven by a tool, so that the limiting mechanism 700 leaves the position with the limiting effect, then the sleeve 300 is close to the base 100 along the length direction of the guide column 200 under the thrust action of the elastic part 600, the supporting rod 500 is driven to support the inserting end 420 of the latch 400, and the inserting end 420 of the latch 400 swings towards the direction deviating from the axis of the guide column 200 and is inserted into the deep part of the well wall to realize positioning.
(3) Stressometer recovery process
When the stress gauge is out of order or needs to be taken out of the deep well for routine maintenance, the base 100 is directly extracted by the surface steel cable, and the latch 400 is pressed by the well wall to swing downwards (i.e. the connection end 420 gradually approaches the guide column 200), and the sleeve 300 is pushed away from the base 100 by the support rod 500. Since the structure for limiting the movement of the sleeve 300 is only the elastic member 600, and the latch 400 can approach the guide post 200 under the external force applied by the elastic member 600, the latch 400 can be recycled without damage, and the whole stress meter equipment can also be recycled without damage.
Second embodiment:
FIG. 2 is a schematic view of a partial structure of a first borehole stress gauge installation and free recovery locator according to a second embodiment of the present invention; fig. 3 is a partial structural schematic view of a second borehole stress gauge installation and free recovery locator according to a second embodiment of the invention. Referring to fig. 2 and 3, the present embodiment provides a borehole stress meter installation and free recovery locator, which is substantially the same as the borehole stress meter installation and free recovery locator of the first embodiment, and the difference between them is that the limiting mechanism 700 in the borehole stress meter installation and free recovery locator of the present embodiment includes a swing link 710; the guide post 200 is a hollow cylinder, and a through hole 210 is formed in the side wall of the guide post 200; the swing rod 710 is hinged on the inner wall of the guide column 200; when the swing link 710 is located at the initial position, one end of the swing link 710 passes through the through hole 210, and when the swing link 710 swings by a set angle, the swing link 710 retracts into the guide post 200.
Optionally, as shown in fig. 2 and 3, the limiting mechanism 700 further includes a driving device; the driving device is arranged in the inner cavity of the guide post 200 and is used for driving the swing rod 710 to retract into the guide post 200.
Alternatively, as shown in fig. 3, the driving means includes a power cylinder 730, a motor 740, and an eccentric 750; the power cylinder 730 is arranged on the base 100, and the power cylinder 730 is communicated with the inner cavity of the guide column 200; the motor 740 is arranged in the power cylinder 730, and the motor 740 drives the swing rod 710 to swing through the eccentric wheel 750.
It should be noted that, as shown in fig. 2 and 3, the swing link 710 needs to extend out of the through hole 210, and the swing link 710 will rotate slightly downward when swinging, so that in order to facilitate the swinging of the swing link 710 and not be affected by the pressure of the sleeve 300, a stop 720 may be added, the stop 720 is used for locking the sleeve 300, and after the swing link 710 rotates slightly, the stop 720 may be disengaged to release the sleeve 300.
The third embodiment:
fig. 4 is a partial structural schematic diagram of a borehole stressor meter installation and free recovery locator provided in accordance with a third embodiment of the present invention. Referring to fig. 4, the present embodiment provides a borehole stress meter installation and free recovery locator, which is substantially the same as the borehole stress meter installation and free recovery locator of the second embodiment, and the difference between them is that the driving device in the borehole stress meter installation and free recovery locator of the present embodiment further includes a gear set 760 and a rotating rod 770; the rotary rod 770 is arranged in the power cylinder 730 along the axial direction of the power cylinder 730, the motor 740 is connected with the rotary rod 770 through a gear set 760, and the eccentric wheel 750 is arranged on the rotary rod 770; the motor 740 drives the rotating rod 770 to rotate through the gear set 760, and the rotating rod 770 pushes the swing rod 710 to swing through the eccentric wheel 750.
On the basis of the second and third embodiments, optionally, as shown in fig. 4, the limiting mechanism 700 further includes a return spring 780; the return spring 780 is disposed in the inner cavity of the guide post 200, and is used for driving one end of the swing link 710 to pass through the through hole 210.
On the basis of any of the above embodiments, further, as shown in fig. 1, the elastic member 600 is a coil spring; the coil spring is wound around the guide post 200 and located on the side of the sleeve 300 facing away from the base 100.
Further, as shown in fig. 1, a spring catch 800 is further disposed on the guide post 200; one end of the coil spring contacts the sleeve 300 and the other end of the coil spring contacts the spring catch 800.
On the basis of any of the above embodiments, further, as shown in fig. 1 to 4, the number of the latch 400 is plural; the plurality of latches 400 are evenly distributed around the circumference of the guide post 200.
In addition to any of the above embodiments, as shown in fig. 1 to 4, the maximum included angle between the length direction of the latch 400 and the length direction of the guide post 200 is smaller than 90 degrees. In order to limit the maximum included angle to be less than 90 degrees, the latch 400 is turned upwards by an angle gradually increasing and cannot be increased to be perpendicular to the guide post 200. Specifically, a limit stop may be provided on the base 100 to prevent the latch 400 from being excessively flipped.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The drilling stress gauge mounting and free recovery positioner is characterized by comprising a base (100), a guide post (200), a sleeve (300), a latch (400), a support rod (500), an elastic piece (600) and a limiting mechanism (700);
the guide post (200) is fixedly arranged on the base (100), and the sleeve (300) is wound on the outer side of the guide post (200) and can move along the length direction of the guide post (200);
two ends of the latch (400) are respectively a hinged end (410) and an inserting end (420), the hinged end (410) is hinged with the base (100), and the inserting end (420) is used for being inserted into a well wall; the two ends of the supporting rod (500) are respectively hinged with the middle part of the latch (400) and the sleeve (300); when the sleeve (300) moves towards the base (100), the supporting rod (500) can push the inserting end (420) to swing towards the direction away from the guide column (200);
the elastic piece (600) and the limiting mechanism (700) are arranged on the guide column (200), and the elastic piece (600) is used for pushing the sleeve (300) to move towards the base (100); the limiting mechanism (700) is used for limiting the sleeve (300) to move towards the base (100);
the limiting mechanism (700) comprises a swing rod (710); the guide column (200) is a hollow cylinder, and a through hole (210) is formed in the side wall of the guide column (200); the swing rod (710) is hinged to the inner wall of the guide column (200);
when the swing rod (710) is located at an initial position, one end of the swing rod (710) penetrates through the through hole (210), and when the swing rod (710) swings for a set angle, the swing rod (710) retracts into the guide column (200);
the limiting mechanism (700) further comprises a return spring (780); the return spring (780) is arranged in an inner cavity of the guide column (200) and used for driving one end of the swing rod (710) to penetrate out of the through hole (210).
2. The borehole stressor meter installation and free recovery locator of claim 1, wherein the stop mechanism (700) further comprises a drive device; the driving device is arranged in an inner cavity of the guide column (200) and used for driving the swing rod (710) to retract into the guide column (200).
3. The borehole stressor meter installation and free recovery locator of claim 2, wherein the drive means comprises a power barrel (730), a motor (740), and an eccentric (750); the power cylinder (730) is arranged on the base (100), and the power cylinder (730) is communicated with the inner cavity of the guide column (200); the motor (740) is arranged in the power cylinder (730), and the motor (740) drives the swing rod (710) to swing through the eccentric wheel (750).
4. The borehole stressor meter installation and free recovery locator of claim 3, wherein the drive means further comprises a gear set (760) and a rotary rod (770); the rotating rod (770) is arranged in the power cylinder (730) along the axial direction of the power cylinder (730), the motor (740) is connected with the rotating rod (770) through the gear set (760), and the eccentric wheel (750) is arranged on the rotating rod (770); the motor (740) drives the rotating rod (770) to rotate through a gear set (760), and the rotating rod (770) pushes the swing rod (710) to swing through the eccentric wheel (750).
5. A borehole stressor meter installation and free recovery locator according to any one of claims 1 to 4, wherein the resilient member (600) is a coil spring; the spiral spring is wound on the guide post (200) and is positioned on one side, away from the base (100), of the sleeve (300).
6. The borehole stressor installation and free recovery locator of claim 5, wherein a spring catch (800) is further provided on the guide post (200); one end of the coil spring contacts the sleeve (300), and the other end of the coil spring contacts the spring catch (800).
7. The borehole stressor meter installation and free recovery locator of claim 1, wherein the number of latches (400) is plural; the clamping teeth (400) are uniformly distributed around the circumferential direction of the guide column (200).
8. The borehole stressor according to claim 1, wherein a maximum angle between a length direction of the latch (400) and a length direction of the guide post (200) is less than 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011257573.4A CN112377128B (en) | 2020-11-11 | 2020-11-11 | Locator is retrieved with freedom in installation of drilling stressmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011257573.4A CN112377128B (en) | 2020-11-11 | 2020-11-11 | Locator is retrieved with freedom in installation of drilling stressmeter |
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| CN112377128A CN112377128A (en) | 2021-02-19 |
| CN112377128B true CN112377128B (en) | 2021-06-22 |
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| CN202011257573.4A Active CN112377128B (en) | 2020-11-11 | 2020-11-11 | Locator is retrieved with freedom in installation of drilling stressmeter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113338917B (en) * | 2021-06-01 | 2022-08-02 | 中海油田服务股份有限公司 | Wing type positioner |
| CN114608504B (en) * | 2022-01-20 | 2024-05-24 | 温州市瓯江引水发展有限公司 | Replaceable displacement measuring device for diversion tunnel |
| CN114991702B (en) * | 2022-06-01 | 2024-05-03 | 中煤科工集团西安研究院有限公司 | Hole bottom grouting device, system and method for underground deep hole sealing of coal mine |
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| CN105241583A (en) * | 2015-10-27 | 2016-01-13 | 中国矿业大学(北京) | Borehole stressmeter installation rod and installation method thereof |
| CN110608061A (en) * | 2019-08-14 | 2019-12-24 | 四川大学 | Prestressed grouting anchor rod and installation and recovery method thereof |
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| US20080246273A1 (en) * | 2004-11-30 | 2008-10-09 | Shelljet Pty Limited | Positive Indication of Latching in an Inner and Outer Tube Assembly, Especially for Downhole Assemblies |
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