CN113310726B - Portable sampling system and method in narrow space - Google Patents
Portable sampling system and method in narrow space Download PDFInfo
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- CN113310726B CN113310726B CN202110576714.7A CN202110576714A CN113310726B CN 113310726 B CN113310726 B CN 113310726B CN 202110576714 A CN202110576714 A CN 202110576714A CN 113310726 B CN113310726 B CN 113310726B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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Abstract
The invention discloses a portable sampling system and a sampling method in a narrow space, which solve the problem that a sampling device in the prior art is not beneficial to narrow space sampling, have the beneficial effect of improving the sampling speed of rocks in a small tunnel and a complex terrain, and have the following concrete scheme: a portable sampling system in a narrow space comprises a telescopic supporting rod, wherein one end of the supporting rod can be in contact with surrounding rocks; the drilling unit is used for drilling and sampling the surrounding rock; the device comprises an acting force providing unit, a supporting rod and a drilling unit, wherein the supporting rod is arranged on one side of the acting force providing unit, the acting force providing unit comprises a telescopic rod, a telescopic column and a supporting part capable of being in contact with surrounding rocks, the telescopic rod is arranged on the periphery of the telescopic column, the supporting part supports the telescopic rod, the telescopic column, the supporting rod and the drilling unit, and the telescopic rod can extend to provide acting force for the supporting rod and the supporting part; the telescopic column is connected with the drilling unit to drive the drilling unit to move telescopically.
Description
Technical Field
The invention relates to the field of rock sampling, in particular to a portable sampling system and a method in a narrow space.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Rock sampling is one type of sampling work in geological work, namely, collecting samples of rocks or ores for indoor observation or experiments. Rock sampling is used as a traditional geological data acquisition and collection means, has wide application in the fields of geological scientific research, regional survey, resource exploration, lithology cataloging, petroleum logging and the like, and is the basis of indoor analysis, arrangement and experiment.
The inventors have found, on the one hand, that large samplers tend to be less accessible when sampling inside small tunnels. In addition, under some complex terrains such as tunnel narrow part, the existing small-sized hand-held sampler is likely to cause inconvenient operation due to too narrow space, influence sampling efficiency and cause the quality reduction of the core sample. On the other hand, the anchor rod is needed to be driven into to provide the reaction force by the existing sampler in the tunnel mostly, the speed is slow, and the taken out rock core is irregular due to insufficient stability in the sampling process, so that the follow-up research is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a portable sampling system in a narrow space, which is a portable detachable rock sampler, so as to improve the sampling speed of rocks in small tunnels and complex terrains and improve the stability in the sampling process.
In order to realize the purpose, the invention is realized by the following technical scheme:
a portable sampling system in a confined space comprising:
one end of the telescopic supporting rod can be in contact with surrounding rocks;
the drilling unit is used for drilling and sampling the surrounding rock;
the device comprises an acting force providing unit, a supporting rod and a drilling unit, wherein the supporting rod is arranged on one side of the acting force providing unit, the acting force providing unit comprises a telescopic rod, a telescopic column and a supporting part capable of being in contact with surrounding rocks, the telescopic rod is arranged on the periphery of the telescopic column, the supporting part supports the telescopic rod, the telescopic column, the supporting rod and the drilling unit, and the telescopic rod can extend to provide acting force for the supporting rod and the supporting part; the telescopic column is connected with the drilling unit to drive the drilling unit to do telescopic movement.
The sampling system is not an integral structure, but is formed by a multi-section structure, and the size of the sampling system can be reduced by the telescopic supporting rod, so that the sampling system can be conveniently used in a narrow space; the setting of effort providing unit can be with bracing piece and supporting component stable with the surrounding rock contact, for whole sampling system provides the impetus, and then improves the stability of system.
The portable sampling system in the narrow space comprises a support component, a first support platform and a second support platform, wherein the telescopic rod and the telescopic column are arranged between the first support platform and the second support platform;
first support platform with bracing piece fixed connection, perhaps, for convenient field assembly, guarantee whole sampling system's portability, first support platform with the bracing piece can dismantle the connection.
In order to realize the connection between the telescopic column and the drilling unit, the second support platform is provided with an opening, one end of the telescopic column is connected with the first support platform, and the other end of the telescopic column can penetrate through the opening to be connected with the drilling unit.
According to the portable sampling system in the narrow space, the pressure sensor is arranged between the telescopic rod and the first support platform or the second support platform, and is used for measuring the pressure of the hydraulic rod on the first support platform or the second support platform, so that the overlarge pressure is avoided;
the pressure sensor, the drilling unit, the telescopic rod and the telescopic column are respectively connected with the control unit, so that the control unit controls all parts, and when the pressure sensor detects that the pressure is greater than a set value, the control unit controls the telescopic rod to move reversely.
According to the portable sampling system in the narrow space, the telescopic column is a hydraulic telescopic column, and the telescopic rod is a hydraulic rod;
an oil cavity capable of storing oil is arranged in the first support platform, and the oil cavity is respectively and independently connected with the telescopic column and the telescopic rod.
The portable sampling system in the narrow space further comprises a support frame, one end of the support frame is detachably connected with the second support platform, and the other end of the support frame is used for contacting with surrounding rocks;
the whole sampling system of effective stable support not only of setting up of support frame can be with surrounding rock stable contact moreover, and the support frame includes many foot supports, and two adjacent foot supports are close to the distance between first pedestal platform one end and are less than the distance between two adjacent foot support other ends.
In order to further facilitate field assembly and improve portability of the sampling system, the end of the telescopic column is detachably connected with the drilling unit.
According to the portable sampling system in the narrow space, in order to realize the detachable connection of the telescopic column and the drilling unit, the end part of the telescopic column is provided with the protrusion, one end of the drilling unit is provided with the clamping plate, and the clamping plate is provided with the clamping groove capable of being matched with the protrusion.
According to the portable sampling system in the narrow space, the drilling unit comprises the power mechanism, one end of the power mechanism is connected with the telescopic column, the power end of the power mechanism is connected with the drill rod, and the end part of the drill rod is provided with the coring bit.
In a second aspect, the present invention further provides a portable sampling method in a narrow space, in which the sampling system in a portable narrow space is adopted, including the following:
determining a rock mass to be sampled, and assembling a telescopic rod, a drilling unit and an acting force providing unit;
aligning the sampling system to a target rock mass, and extending the supporting rod until the end part of the supporting rod is contacted with the rock mass;
the telescopic rod works to enable two ends of the sampling system to be in contact with the rock mass, and the telescopic rod generates acting force to press the sampling system on the rock mass;
and drilling the rock sample and sampling through the telescopic column and the drilling unit.
The beneficial effects of the invention are as follows:
1) The telescopic supporting rod is arranged in a telescopic mode, so that the sampling system can conveniently enter a narrow space or a small tunnel in a short size, and the sampling system can be conveniently applied to special occasions; furthermore, the first support platform is detachably connected with the supporting rod, and the telescopic column is detachably connected with the drilling unit, so that the sampling system is portable and can be assembled on site.
2) According to the invention, through the arrangement of the acting force providing unit, the connection with the drilling unit and the support rod can be realized, and through the arrangement of the telescopic rod, the support frame and the support rod can be stably pressed on the surrounding rock, on the other hand, power can be provided for the drilling unit through the telescopic column, and the original size of the sampling system is further reduced through the arrangement of the telescopic column, so that the whole system can be conveniently applied to a narrow space or a small tunnel.
3) According to the invention, through the arrangement of the telescopic rod, a supporting force can be provided for the sampling system, so that two ends of the sampling system can be pressed against the surrounding rock and further stably contacted with the surrounding rock, the time required by bolting in the prior art is reduced, the disturbance to the surrounding rock is reduced, and the working efficiency of the sampling system is improved;
furthermore, the telescopic column is detachably connected with the drilling unit to drive the drilling unit to move in a telescopic manner.
4) According to the invention, through the arrangement of the support frame, the support frame can stably support the sampling system, so that the stability in the sampling process is improved, the phenomena of irregular core shape and the like caused by instability of a drilling machine in the sampling process are reduced, and the accuracy of subsequent experiments is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a front view of a portable sampling system in a narrow space according to an embodiment;
FIG. 2 is a front view showing the extension of a support rod in a sampling system in a portable narrow space according to an embodiment;
FIG. 3 is a schematic diagram of a force providing unit in a portable sampling system in a narrow space according to an embodiment.
FIG. 4 is a front view of a drilling unit of a portable sampling system in a narrow space according to an embodiment;
FIG. 5 is a schematic view of three-leg support of the sampling system in a portable narrow space according to one embodiment.
The hydraulic support comprises a support rod 1, an acting force providing unit 2, a drilling unit 3, a first support platform 4, a second support platform 5, a hydraulic rod 6, a foot support 7, a hydraulic switch 8, a hydraulic telescopic column 9, a buckle 10, a power mechanism 11 and a drill rod 12.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As described in the background art, the prior art has a problem that a sampler is large and is not beneficial to sampling in a narrow space, and in order to solve the technical problem, the invention provides a portable sampling system in a narrow space.
In an exemplary embodiment of the present invention, referring to fig. 1, a portable sampling system in a narrow space includes a support rod 1, an acting force providing unit 2, and a drilling unit 3, the drilling unit 3 is mounted at the lowermost side, the drilling unit includes a drill rod to drill a tunnel, the support rod is fixed at one side of the acting force providing unit 2, and the acting force providing unit is used to provide acting force to the support rod to press the support rod against a surrounding rock during sampling; the drilling unit can be connected to the force providing unit by means of a snap fit.
Further, in order to realize the sample, the tip of drilling rod 12 sets up core bit to sample from narrow space or small tunnel through core bit, can be to the drilling unit of country rock drilling and sample for prior art's drilling mechanism, the drilling unit includes drilling rod 12, sets up in drilling rod 12 to be used for the ware of drawing that cuts the rock specimen that takes.
Considering that the sampling system is applied to a narrow space or a small tunnel, the supporting rods are telescopically arranged, so that the size of the whole sampling system can be shortened by the supporting rod 1 in a shortest state, the whole system can conveniently enter the narrow space or the small tunnel, the axis of the supporting rod 1 is parallel to the axis of a drill rod of a drilling unit, and in an optimal scheme, the central axis of the supporting rod 1 and the central axis of the drill rod are arranged in the same straight line.
As shown in fig. 2, the support rod 1 can be extended and retracted along the axial direction of the drill rod, and the support rod 1 comprises a plurality of sections of support rods which are nested with each other; specifically, every section of bracing piece is the body of rod that the diameter is different, and the body of rod of the minor diameter is followed outside body of rod roll-off during operation, reaches the extension in order to do the purpose of support, and in addition, the actual length of stretching out of bracing piece can be confirmed by actual conditions.
It is of course easily understood that the cross section of the support rod is also square, as long as the telescopic effect is achieved.
In some examples, two adjacent support rods can be locked by a locking member, the locking member can be a bolt which can penetrate through the outer rod body and can abut against the inner rod body, and after the support rods stretch to a set position, the bolt can penetrate through the outer rod body and abut against the inner rod body, so that the length of the support rods can be maintained.
Of course, in some examples, the support rod is an electric telescopic rod, and the electric telescopic rod is connected with the control unit.
Referring to fig. 3, the acting force providing unit includes a first support platform 4 and a second support platform 5, the first support platform is detachably connected to the supporting rod, the first support platform 4 is provided with a first groove, the shape of the first groove is matched with the shape of the supporting rod, so that the end portion of the supporting rod can be clamped into the first groove, specifically, the first groove is in interference fit with one end of the supporting rod, the first support platform 4 is connected to the drilling unit, and the first support platform 4 is connected to the second support platform 5 through a telescopic component.
The telescopic component comprises a telescopic column arranged on the first support platform 4 and at least one telescopic rod arranged on the periphery of the telescopic column, the telescopic rod is a hydraulic rod 6, the telescopic column is also a hydraulic telescopic column, and the telescopic rod is used for providing reaction force for the drilling unit; the second support platform is provided with an opening to enable the hydraulic telescopic column to be connected with the drilling unit through the opening.
The hydraulic rod can stretch and retract by arranging the hydraulic rod, and can provide acting force for the telescopic rod so as to enable two ends of the whole system to be stably abutted against surrounding rocks; the hydraulic telescopic column drives the drilling unit to act, so that the whole length of the whole sampling system is correspondingly shortened, and the sampling system is convenient to use in a narrow space.
In some examples, a plurality of hydraulic rods, specifically four hydraulic rods 6, may be provided, the first support platform 4 may be detachably connected to one end of the support rod, one side of the second support platform 5 may be detachably connected to the support frame, and the force providing unit 2 may be fixed to a set height by the support frame.
It can be easily understood that the telescopic link can also be other telescopic links, like the electric jar, the electric jar stiff end is fixed in the second support platform, and the other end is the flexible end and the first support platform of electric jar and is connected to drive the global motion of bracing piece through first support platform by flexible part.
Specifically, in order to avoid the interference of the support frame to the drilling unit, the support frame includes a plurality of foot supports 7, specifically, three foot supports 7 may be used, as shown in fig. 5, a set angle is formed between the foot supports 7 and the second support platform 5, one end of each foot support 7, which is far away from the second support platform 5, is far away from the drilling unit, an extension line of each adjacent two foot supports forms an included angle with the set angle, one end of each foot support 7 is fixed to the second support platform, the other end of each foot support is used for contacting with the rock surface, and the distance between one end of each adjacent two foot supports, which is close to the first support platform, is smaller than the distance between the other ends of the adjacent two foot supports.
Wherein, for further make things convenient for the field assembly of sampling system, the foot support can be dismantled for second support platform and be connected, and the one end of concrete second support platform sets up a plurality of second recesses, and the one end of foot support can block and set up in the second recess, foot support and second recess interference fit.
Of course, in other examples, the support frame may be another type of support frame as long as it can ensure stable support for the support rod and the drilling unit, but in consideration of the portability of the sampling system, the support frame is preferably selected to have a plurality of foot supports.
In addition, when the telescopic rod is a hydraulic rod and the telescopic column is a hydraulic column, the first support platform 4 is provided with an oil cavity, oil used by hydraulic pressure is stored in the oil cavity, the oil cavity is communicated with the hydraulic rod and the hydraulic telescopic column, and the oil cavity of the first support platform is provided with a pipeline which is provided with a hydraulic switch 8. Wherein, telescopic link 1 and hydraulic stem 6, the flexible post 9 of hydraulic pressure are connected to first support platform 4 to as oil storage device's effect, foot support is connected to second support platform 5, and the hydraulic stem provides the effort, and foot support 7 and telescopic link 1 provide the impetus of unit as whole effort.
In addition, a pressure sensor is arranged between the telescopic rod and the first support platform or the second support platform; the pressure sensor, the power mechanism of the drilling unit, the hydraulic rod and the hydraulic telescopic column are respectively connected with the control unit, and the control unit can be a PLC (programmable logic controller) or other types of controllers.
The during operation, in order to provide sufficient stability, the bracing piece is extensible until withstanding the country rock, at this moment, be 6 oiling for hydraulic stem through hydraulic switch, four hydraulic stem all extensions are pressed the telescopic link on the country rock, simultaneously with second support platform down pressing together with foot support 7, finally press foot support 7 firmly on waiting to get the rock mass around the core, exert oneself through inside, finally make the country rock turn into to the power of telescopic link partly firmly press entire system on waiting to get the rock mass of core, thereby provide sufficient stability for whole sampling system.
On the other hand, under the effect of many hydraulic stems, the produced power of bracing piece and surrounding rock contact can be used for stabilizing sampling system, and hydraulic telescoping post can provide power for creeping into the unit, and the tip of hydraulic telescoping post links to each other with creeping into the unit through the buckle, and during operation, pours into hydraulic oil into for hydraulic telescoping post through hydraulic switch, drives by hydraulic telescoping post and creeps into the unit action.
As shown in fig. 4, the drilling unit includes a power mechanism 11 and a drill rod 12, the power mechanism is connected to the drill rod 12, a latch 10 is provided at one end of the power mechanism, and the latch 10 is mainly used to connect to the acting force providing unit. When the hydraulic rod is in work and the hydraulic rod is extended, the drilling unit is in a drilling state and acts downwards to obtain a core. After the coring is finished, the core which is taken is cut off by the lifting and breaking device arranged in the drill rod, then the hydraulic rod is shortened, the drilling unit is driven to be communicated with the core in the drill rod to be lifted upwards, and the whole sampling process is finished.
Specifically, the power mechanism is a power source of the drill rod 12, and the power mechanism drives the drill rod 12 to rotate and the like, and the power mechanism may be a motor or other power source, and is also connected to the control unit.
The buckle is for locating the cardboard of power unit tip, and the cardboard sets up the draw-in groove, and the cross-section of draw-in groove is the type of falling T, and the one end of hydraulic telescoping post sets up the arch, and the bellied shape is with the shape looks adaptation of cardboard draw-in groove, can provide the unit card with the effort from this and go into the buckle draw-in groove, realizes that the effort provides the unit and creeps into being connected of unit.
In order to ensure a stable connection of the force providing unit and the drilling unit, the clamping groove has a set length, and the protrusion of the corresponding hydraulic telescopic column also has a set length.
It is further noted that the entire sampling system is designed as a detachable device for ease of portability. Wherein, telescopic link 1 is connected with first support platform through the screw, and the foot support is connected with the second support platform through the draw-in groove, creeps into the unit and is connected with the flexible post of hydraulic pressure through the buckle, and remaining part is a whole, and during carrying, hydraulic stem and hydraulic telescopic link are all in the shortest state to the shared volume of minimizing.
The process of completing sampling by applying the device specifically comprises the following steps:
step 1: determining a rock mass to be sampled, assembling the sampling unit, fixing the foot support 7 on the second support platform, then installing the telescopic rod, and finally fixing the sampling unit on the second support platform.
Step 2: aim at the target rock mass with the sampler, keep whole sampler stable, extension telescopic link this moment, treat that the telescopic link contacts the rock mass and stops, at this whole in-process, maintain sampling system's stability with the hand.
And step 3: the hydraulic stem is started, because the both ends of the sampling system are in contact with the rock mass, the hydraulic stem generates force, so that the sampling system is stably pressed on the rock mass, the pressure sensor at the hydraulic stem is observed, the pressure is prevented from being too large, and after the sampling system is stabilized, the hydraulic stem can be no longer maintained stably by people.
And 4, step 4: and starting the drill rod and the hydraulic telescopic column, wherein the hydraulic rod provides power for drilling, and the extension and the shortening of the hydraulic telescopic column drive the drill bit to move downwards and upwards. During drilling, the hydraulic telescopic column is regulated by the pressure sensor to keep the bit pressure in a relatively constant state all the time until the drilling is finished.
And 5: after drilling, the hydraulic telescopic column is shortened to drive the drill bit and the rock core to move upwards, and sampling is completed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 (9)
1. A method of sampling in a portable confined space, comprising:
determining a rock mass needing to be sampled, and assembling the telescopic rod, the drilling unit and the acting force providing unit;
aligning the sampling system to a target rock mass, and extending the supporting rod until the end part of the supporting rod is contacted with the rock mass;
the telescopic rod works to enable two ends of the sampling system to be in contact with the rock mass, and the telescopic rod generates acting force to press the sampling system on the rock mass;
drilling a rock sample and sampling through the work of a telescopic column and a drilling unit;
wherein, a portable sampling system in narrow space includes:
one end of the telescopic supporting rod can be in contact with surrounding rocks;
the drilling unit is used for drilling and sampling the surrounding rock;
the device comprises an acting force providing unit, a supporting rod and a drilling unit, wherein the supporting rod is arranged on one side of the acting force providing unit, the acting force providing unit comprises a telescopic rod, a telescopic column and a supporting part capable of being in contact with surrounding rocks, the telescopic rod is arranged on the periphery of the telescopic column, the supporting part supports the telescopic rod, the telescopic column, the supporting rod and the drilling unit, and the telescopic rod can extend to provide acting force for the supporting rod and the supporting part; the telescopic column is connected with the drilling unit to drive the drilling unit to do telescopic motion;
the supporting part comprises a first support platform and a second support platform, and the telescopic rod and the telescopic column are arranged between the first support platform and the second support platform;
the supporting component also comprises a supporting frame, one end of the supporting frame is detachably connected with the second support platform, and the other end of the supporting frame is used for contacting with surrounding rocks;
the support frame includes many foot supports, and the distance that adjacent two foot supports are close to between the second support platform one end is less than the distance between the adjacent two foot support other ends.
2. The portable sampling method in a narrow space according to claim 1, wherein the first seating platform is fixedly connected to the support rod.
3. A portable sampling method in a confined space as claimed in claim 1 wherein said first support platform is removably attached to said support pole.
4. A portable sampling method in a confined space as claimed in claim 1 wherein said second support platform is provided with an opening, one end of the telescopic column being connected to said first support platform and the other end being able to pass through the opening to be connected to said drilling unit.
5. The portable sampling method in narrow space according to claim 1, wherein a pressure sensor is provided between the telescopic rod and the first support platform or the second support platform;
the pressure sensor, the drilling unit, the telescopic rod and the telescopic column are respectively connected with the control unit.
6. The portable sampling method in narrow space according to claim 1, wherein said telescopic column is a hydraulic telescopic column, and said telescopic rod is a hydraulic rod;
an oil liquid cavity capable of storing oil liquid is arranged in the first support platform, and the oil liquid cavity is respectively and independently connected with the telescopic column and the telescopic rod.
7. The portable narrow space sampling method according to claim 4, wherein the end of said telescopic column is detachably connected to said drilling unit.
8. A portable sampling method in a narrow space according to claim 7, wherein the end of the telescopic column is provided with a protrusion, one end of the drilling unit is provided with a clamping plate, and the clamping plate is provided with a clamping groove capable of being matched with the protrusion.
9. The portable narrow space sampling method as defined in claim 4, wherein the drilling unit comprises a power mechanism, one end of the power mechanism is connected with the telescopic column, the power end of the power mechanism is connected with a drill rod, and the end of the drill rod is provided with a core bit.
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