CN221086621U - Coal sampling machine straight elephant trunk cleaning device - Google Patents
Coal sampling machine straight elephant trunk cleaning device Download PDFInfo
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- CN221086621U CN221086621U CN202322508387.9U CN202322508387U CN221086621U CN 221086621 U CN221086621 U CN 221086621U CN 202322508387 U CN202322508387 U CN 202322508387U CN 221086621 U CN221086621 U CN 221086621U
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- straight chute
- straight
- scraping
- pipe wall
- chute
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- 239000003245 coal Substances 0.000 title claims abstract description 66
- 238000004140 cleaning Methods 0.000 title claims abstract description 31
- 238000005070 sampling Methods 0.000 title claims abstract description 22
- 241000406668 Loxodonta cyclotis Species 0.000 title description 8
- 238000007790 scraping Methods 0.000 claims abstract description 78
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000005389 magnetism Effects 0.000 claims description 9
- 241001622644 Parnara guttatus Species 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010408 sweeping Methods 0.000 description 27
- 238000000034 method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a cleaning device for a straight chute of a coal sampling machine, which comprises the straight chute, wherein at least one scraping cutter capable of moving along the axial direction of the straight chute is arranged in the straight chute, and the cutting edge of the scraping cutter is tightly attached to the inner pipe wall of the straight chute; the outside of the straight chute is provided with an axial moving device capable of moving along the axial direction of the straight chute, a magnetic attraction device is arranged at a position, corresponding to the scraping cutter, on one side, close to the outer pipe wall of the straight chute, of the axial moving device, and a gap is reserved between the magnetic attraction device and the outer pipe wall of the straight chute; according to the utility model, the coal sample adhered on the inner pipe wall of the straight chute can be scraped directly by the scraping cutter, so that the cleaning effect of the coal sample on the inner pipe wall is ensured, and meanwhile, the cleaning efficiency of the coal sample on the inner pipe wall is effectively improved.
Description
Technical Field
The utility model belongs to the technical field of automatic coal mining, and relates to a cleaning device for a straight chute of a coal sampling machine.
Background
In the field of automatic coal sampling and preparing, any link of automatic circulation of the coal sample is required to ensure that the coal sample is not adhered as much as possible in order to realize the automatic processing of the whole sampling, sample preparation and test process, so that the coal sample is prevented from being mixed, and the final detection result is inaccurate. The stainless steel straight chute is arranged before the belt sampler in the automatic belt sampling link reaches the feeding belt conveyor, and once the coal sample is high in humidity and strong in viscosity, the falling coal sample can be adhered to the inner pipe wall of the straight chute. The coal sample which is adhered to the inner pipe wall of the straight chute at the initial stage is more tightly adhered to the inner pipe wall under the impact of the coal sample which falls off at the subsequent stage. With the increase of adhered coal samples, the adhesion of a large amount of coal samples can lead to coal mixing, severe even blockage of a straight chute, and finally equipment failure.
Therefore, in order to prevent coal samples from mixing and blocking the straight chute, a plurality of vibrators are generally arranged on the outer pipe wall of the straight chute in an array manner in the prior art to apply vibration to the straight chute or to beat the straight chute by manually holding a crow bar, and the coal samples attached to the inner pipe wall are vibrated down in a vibrating manner. However, under the condition that the adhesion of the coal sample is tight, the coal sample on the inner pipe wall is difficult to be completely removed by means of vibration, the defects of high energy consumption and high cost exist when a large number of vibrators are adopted for continuous vibration work, and the defects of high labor consumption and high working strength exist when a direct chute is knocked by a person.
Therefore, aiming at the technical problems existing in the existing process of cleaning the coal mining straight chute in a vibrating way, the utility model discloses a cleaning device for the coal sampling machine straight chute.
Disclosure of utility model
The utility model aims to provide a cleaning device for a straight chute of a coal sampling machine, which can directly scrape coal samples adhered on the inner pipe wall of the straight chute through a scraping cutter, so that the cleaning effect of the coal samples on the inner pipe wall is ensured, and meanwhile, the cleaning efficiency of the coal samples on the inner pipe wall is effectively improved.
The utility model is realized by the following technical scheme:
The cleaning device for the straight chute of the coal sampling machine comprises the straight chute, wherein at least one scraping cutter capable of moving along the axis direction of the straight chute is arranged in the straight chute, and the cutting edge of the scraping cutter is tightly attached to the inner pipe wall of the straight chute; the outside of straight elephant trunk is provided with the axial displacement device that can follow the axis direction of straight elephant trunk, the position that corresponds the scraper blade on the one side that axial displacement device is close to the outer pipe wall of straight elephant trunk is provided with the magnetism and inhales the device, leave the clearance between the outer pipe wall of magnetism and straight elephant trunk.
The magnetic attraction device is driven by the axial moving device to move along the axial direction of the straight chute, the scraping cutter inside the straight chute is driven by the magnetic force of the magnetic attraction device to move along the axial direction of the straight chute, and when the scraping cutter moves in the axial direction, the coal sample attached to the inner pipe wall of the straight chute can be scraped and peeled off by the cutting edge of the inner pipe wall of the scraping cutter, so that the function of cleaning the straight chute is realized.
In order to better realize the utility model, the scraping and sweeping cutter further comprises a scraping and sweeping ring, wherein the outer ring surface of the scraping and sweeping ring is tightly attached to the inner pipe wall of the straight chute, and the inner ring surface of the scraping and sweeping ring is provided with a scraping and sweeping cutting edge which is obliquely convex towards the central axis of the straight chute.
Through setting up the scraping edge of slope for form certain contained angle between scraping edge and the interior pipe wall of straight elephant trunk, and then make the scraping edge can be laborsaving more and easy cut into in the coal sample that adheres to on the interior pipe wall, and then realize bonding closely knit coal sample on the interior pipe wall and carry out effective complete striking off.
In order to better realize the utility model, the scraping and sweeping ring is further provided with at least one breaking notch, when the magnetic force generated by the magnetic attraction device acts on the scraping and sweeping ring, the scraping and sweeping ring is expanded, and then the cutting edge of the scraping and sweeping ring is tightly attached to the inner pipe wall of the straight chute. After the magnetic force is removed by the magnetic attraction device, the scraping and sweeping ring retracts under the elastic action of the self material, so that the degree of fit between the cutting edge of the scraping and sweeping ring and the inner pipe wall of the straight chute is reduced, and the scraping and sweeping ring is favorably taken out of the straight chute smoothly.
In order to better realize the utility model, the breaking notch is a bending notch or an inclined notch.
In order to better realize the utility model, the axial moving device further comprises a mounting frame and driving wheels, wherein the mounting frame is sleeved outside the straight chute, a plurality of driving wheels are uniformly arranged on the mounting frame in a rotating manner along the circumferential direction, and the rims of the driving wheels are tightly attached to and contacted with the outer pipe wall of the straight chute.
In order to better realize the utility model, further, an elastic tensioning device is arranged on one side of the mounting frame, which is close to the outer pipe wall of the straight chute, and the mounting frame is tensioned towards the direction, which is close to the outer pipe wall of the straight chute, by arranging the elastic tensioning device, so that the rim of the driving wheel mounted on the mounting frame can be tightly attached to the outer pipe wall of the straight chute, and further, enough friction force is ensured between the driving wheel and the outer pipe wall to realize axial movement, and the driving wheel is prevented from slipping.
In order to better realize the utility model, the elastic tensioning device further comprises a telescopic column and a tensioning spring, wherein the telescopic column arranged along the radial direction of the straight chute is arranged between one side, close to the outer pipe wall of the straight chute, of the mounting frame and the magnetic attraction device, and the tensioning spring is sleeved on the outer side of the telescopic column.
In order to better realize the utility model, the magnetic attraction device further comprises an electromagnetic ring, the outer ring surface of the electromagnetic ring is connected with the axial moving device, the inner ring surface of the electromagnetic ring is arranged corresponding to the scraping cutter, and a gap is reserved between the inner ring surface of the electromagnetic ring and the outer pipe wall of the straight chute.
In order to better realize the utility model, the axial width of the electromagnetic ring is more than or equal to the axial width of the scraping cutter.
Compared with the prior art, the utility model has the following advantages:
According to the utility model, the scraping and sweeping cutter capable of axially moving is arranged in the straight chute, the magnetic attraction device is arranged outside the straight chute, the magnetic attraction device is driven to axially move by the axial moving device, and magnetic force is applied to the scraping and sweeping cutter by the magnetic attraction device so as to drive the scraping and sweeping cutter to axially move in the straight chute, so that coal samples attached to the inner pipe wall can be efficiently and effectively scraped by the cutting edge of the scraping and sweeping cutter; compared with the traditional mode of applying vibration to the straight sliding pipe by adopting a vibrator or applying vibration to the straight sliding pipe by manual knocking to shake off the coal sample on the inner pipe wall, the coal sample on the inner pipe wall is completely scraped by axially moving the inner pipe of the scraping cutter, so that the cleaning effect of the coal sample is ensured; meanwhile, a plurality of vibrators are avoided, so that noise of a working environment is effectively reduced, and energy consumption and cost for cleaning coal samples are reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a straight chute cleaning device of a coal sampling machine;
FIG. 2 is a top view of a coal sampler straight chute cleaning device;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a schematic view of a scraping tool scraping a coal sample downward;
FIG. 5 is a schematic view of an axial displacement device;
FIG. 6 is a schematic view of a sweeping cutter with a bent notch;
FIG. 7 is a schematic view of a sweeping cutter with an angled cut;
fig. 8 is a schematic cross-sectional view of the wiper blade.
Wherein: 1-a straight chute; 2-scraping and sweeping the cutter; 3-an axial movement device; 4-a magnetic attraction device; 5-an elastic tensioning device; 21-a scraping ring; 22-scraping edge; 23-breaking the incision; 31-mounting frame; 32-a drive wheel; 41-electromagnetic rings; 51-telescoping column; 52-tensioning the spring.
Detailed Description
The following detailed description is exemplary and is intended to provide further explanation of the utility model. 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 utility model 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 present utility model. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the utility model clearly indicates otherwise, and it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
For convenience of description, the words "upper", "lower", "left" and "right" in the present utility model, if they mean only that the directions are consistent with the upper, lower, left, and right directions of the drawings per se, and do not limit the structure, only for convenience of description and simplification of the description, but do not indicate or imply that the apparatus or element to be 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 utility model.
The terms "mounted," "connected," "secured," and the like are to be construed broadly and refer to either a fixed connection, a removable connection, or an integral body, for example; the terms are used herein as specific meanings as understood by those of ordinary skill in the art, and are not limited to the following terms.
Example 1:
The cleaning device for the straight chute of the coal sampling machine comprises a straight chute 1 as shown in fig. 1-4, wherein at least one scraping cutter 2 capable of moving along the axis direction of the straight chute 1 is arranged in the straight chute 1, and the cutting edge of the scraping cutter 2 is tightly attached to the inner pipe wall of the straight chute 1; the outside of straight slide pipe 1 is provided with the axial displacement device 3 that can follow the axis direction of straight slide pipe 1 and remove, the position that corresponds to scraping cutter 2 on the one side that axial displacement device 3 is close to the outer pipe wall of straight slide pipe 1 is provided with magnetism and inhales device 4, leave the clearance between magnetism and inhale device 4 and the outer pipe wall of straight slide pipe 1.
An axial moving device 3 is arranged outside the straight chute 1, and the magnetic attraction device 4 is driven by the axial moving device 3 to move up and down along the axial direction of the straight chute 1. The inside of the straight chute 1 is provided with a scraping cutter 2, and the cutting edge of the scraping cutter 2 is tightly attached to the inner pipe wall of the straight chute 1 along the circumferential direction. When the magnetic attraction device 4 moves up and down, the scraping cutter 2 is attracted through magnetic force to drive the scraping cutter 2 to move along the axial direction of the straight slide pipe 1 synchronously, and then the coal sample adhered on the inner pipe wall is completely scraped through the cutting edge of the scraping cutter 2.
Compared with the traditional structure that a plurality of vibrators are arranged on the outer pipe wall of the straight chute 1, the coal sample attached to the inner pipe wall is vibrated down in a mode of applying high-frequency vibration. The embodiment only needs to set up and scrape and sweep cutter 2, and it can realize scraping the complete of coal sample on the inner tube wall to scrape the cutter 2 axial displacement through the magnetism device 4 drive of inhaling, and its efficiency and the effect of cleaing away of coal sample all are far superior to traditional effect at the outside of straight elephant trunk 1 setting up the vibrator.
Moreover, in the case of very close adhesion to the coal sample, it is difficult for the conventional vibrator to completely shake off the closely adhered coal sample. In this embodiment, the magnetic attraction device 4 can reciprocate to drive the scraping and sweeping cutter 2 to repeatedly scrape the coal sample. For example, the magnetic attraction device 4 drives the scraping and sweeping cutter 2 to move up and down, when the scraping and sweeping cutter 2 moves to a position where the coal sample is closely adhered, the magnetic attraction device 4 returns upwards to move for a certain height at this time, and then drives the scraping and sweeping cutter 2 to move from top to bottom again, so that the scraping and sweeping cutter 2 has enough kinetic energy to scrape the adhered coal sample closely.
Meanwhile, a gap is reserved between the magnetic attraction device 4 and the outer pipe wall of the straight chute 1, so that the magnetic attraction device 4 is prevented from directly contacting with the outer pipe wall of the straight chute 1 to influence the axial movement of the magnetic attraction device 4.
Example 2:
The cleaning device for the straight chute of the coal sampling machine is improved on the basis of the embodiment 1, as shown in fig. 6-8, the scraping cutter 2 comprises a scraping ring 21, the outer ring surface of the scraping ring 21 is tightly attached to the inner pipe wall of the straight chute 1, and the inner ring surface of the scraping ring 21 is provided with a scraping cutting edge 22 which is obliquely convex towards the central axis of the straight chute 1.
Specifically, the top and the bottom of the inner ring surface of the scraping ring 21 are symmetrically provided with scraping cutting edges 22 inclined towards the central axis of the straight chute 1, the scraping cutting edges 22 at the upper end and the lower end are symmetrically distributed on the middle horizontal surface of the scraping ring 21 to form a trapezoid structure, the scraping ring 21 is ensured to move from top to bottom or from bottom to top, a certain angle is formed between one scraping cutting edge 22 and the inner pipe wall of the straight chute 1, and then the scraping cutting edges 22 can be ensured to cut into coal samples on the inner pipe wall more in a labor-saving manner.
Further, the angle of inclination of the wiper edge 22 with respect to the horizontal is 15 ° -45 °.
Further, be provided with at least one disconnection incision 23 on scraping the ring 21, through setting up disconnection incision 23 for scraping the ring 21 and can expanding when receiving the magnetism effect of magnetic attraction device 4, and then guarantee to scrape and sweep blade 22 and the inseparable laminating of interior pipe wall of swift current pipe 1, effectively carry out the high-efficient thorough striking off to interior pipe wall coal sample.
Further, the breaking slit 23 is a bent slit or an inclined slit.
As shown in fig. 6, the breaking slit 23 is provided as a bent slit; as shown in fig. 7, the break cuts 23 are provided as oblique cuts.
Other portions of this embodiment are the same as those of embodiment 1, and thus will not be described in detail.
Example 3:
The embodiment of the cleaning device for the straight chute of the coal sampling machine is improved on the basis of the embodiment 1 or 2, as shown in fig. 3-5, the axial moving device 3 comprises a mounting frame 31 and driving wheels 32, the mounting frame 31 is sleeved outside the straight chute 1, the mounting frame 31 is uniformly rotated along the circumferential direction to be provided with a plurality of driving wheels 32, and the rim of the driving wheels 32 is tightly attached to and contacted with the outer tube wall of the straight chute 1.
The top of the mounting frame 31 is rotatably provided with a driving wheel 32 through a bearing, the driving wheel 32 comprises a driving wheel body and a driving motor in transmission connection with a wheel shaft of the driving wheel body, and the driving wheel body is driven to rotate through the driving motor. The bottom of mounting bracket 31 is provided with the leading wheel through the bearing rotation, and the rim of leading wheel and the outer tube wall contact of straight slide pipe 1 lead in the axial displacement in-process of mounting bracket 31, and then guaranteed the stability of mounting bracket 31 and magnetism suction device 4 axial displacement in-process.
Other portions of this embodiment are the same as those of embodiment 1 or 2, and thus will not be described in detail.
Example 4:
The cleaning device for the straight chute of the coal sampling machine of the embodiment is improved on the basis of any one of the embodiments 1-3, as shown in fig. 3-5, and an elastic tensioning device 5 is arranged on one side, close to the outer pipe wall of the straight chute 1, of the mounting frame 31.
Further, the elastic tensioning device 5 comprises a telescopic column 51 and a tensioning spring 52, a telescopic column 51 arranged along the radial direction of the straight chute 1 is arranged between one side, close to the outer pipe wall of the straight chute 1, of the mounting frame 31 and the magnetic attraction device 4, and the tensioning spring 52 is sleeved on the outer side of the telescopic column 51.
By providing telescopic columns 51, circumferentially arranged drive wheels 32 can be fitted to straight carriages 1 of different diameters. Simultaneously, the tensioning spring 52 arranged outside the telescopic column 51 provides tensioning elasticity to tension the mounting frame 31 towards the direction close to the outer tube wall of the straight chute 1, so that the rim of the driving wheel 32 is tightly attached to the outer tube wall, and the slipping between the driving wheel 32 and the outer tube wall in the rotation process is prevented.
Other portions of this embodiment are the same as any of embodiments 1 to 3, and thus will not be described in detail.
Example 5:
The cleaning device for the straight chute of the coal sampling machine in this embodiment is improved on the basis of any one of embodiments 1 to 4, as shown in fig. 2 to 4, the magnetic attraction device 4 comprises an electromagnetic ring 41, an outer ring surface of the electromagnetic ring 41 is connected with the axial moving device 3, an inner ring surface of the electromagnetic ring 41 is arranged corresponding to the scraping cutter 2, and a gap is reserved between the inner ring surface of the electromagnetic ring 41 and the outer pipe wall of the straight chute 1.
The inner hole wall of the mounting frame 31 is provided with a mounting ring groove, an electromagnetic ring 41 is detachably clamped in the mounting ring groove, and the electromagnetic ring 41 is connected with external power-on equipment. The electromagnetic ring 41 generates magnetic force when energized, and the magnetic force disappears when the electromagnetic ring 41 is deenergized.
Further, the axial width of the electromagnetic ring 42 is greater than or equal to the axial width of the scraping and sweeping cutter 2, and through the arrangement, the magnetic force area generated by the electromagnetic ring 42 can completely cover the scraping and sweeping cutter 2, so that enough magnetic force is ensured to drive the scraping and sweeping cutter 2 to axially move.
Other portions of this embodiment are the same as any of embodiments 1 to 4, and thus will not be described in detail.
The above is only a preferred embodiment of the present utility model, and the present utility model is not limited in any way, and any simple modification and equivalent changes of the above embodiments according to the technical substance of the present utility model fall within the protection scope of the present utility model.
Claims (9)
1. The cleaning device for the straight chute of the coal sampling machine comprises the straight chute (1) and is characterized in that at least one scraping cutter (2) capable of moving along the axis direction of the straight chute (1) is arranged in the straight chute (1), and the cutting edge of the scraping cutter (2) is tightly attached to the inner pipe wall of the straight chute (1); the outside of straight swift current pipe (1) is provided with axial displacement device (3) that can follow the axis direction of straight swift current pipe (1), the position that corresponds on one side that axial displacement device (3) are close to the outer pipe wall of straight swift current pipe (1) scrapes and sweeps cutter (2) is provided with magnetism and inhale device (4), leave the clearance between magnetism inhale device (4) and the outer pipe wall of straight swift current pipe (1).
2. The cleaning device for the straight chute of the coal sampling machine according to claim 1, wherein the scraping cutter (2) comprises a scraping ring (21), the outer ring surface of the scraping ring (21) is tightly attached to the inner pipe wall of the straight chute (1), and the scraping cutting edge (22) which is obliquely protruding towards the central axis of the straight chute (1) is arranged on the inner ring surface of the scraping ring (21).
3. A coal sampler straight chute cleaning device as claimed in claim 2, wherein the scraper ring (21) is provided with at least one break cut (23).
4. A coal sampler straight chute cleaning device according to claim 3, characterized in that the break-out slit (23) is a bent slit or an inclined slit.
5. The straight chute cleaning device of the coal sampling machine according to any one of claims 1 to 4, wherein the axial moving device (3) comprises a mounting frame (31) and driving wheels (32), the mounting frame (31) is sleeved outside the straight chute (1), the mounting frame (31) is uniformly rotated along the circumferential direction to be provided with a plurality of driving wheels (32), and the rim of the driving wheels (32) is tightly attached to and contacted with the outer pipe wall of the straight chute (1).
6. A coal sampler straight chute cleaning device as claimed in claim 5, wherein the mounting frame (31) is provided with elastic tensioning means (5) on the side of the outer tube wall of the straight chute (1).
7. The coal sampling machine straight chute cleaning device according to claim 6, wherein the elastic tensioning device (5) comprises a telescopic column (51) and a tensioning spring (52), the telescopic column (51) arranged along the radial direction of the straight chute (1) is arranged between one side, close to the outer pipe wall of the straight chute (1), of the mounting frame (31) and the magnetic attraction device (4), and the tensioning spring (52) is sleeved on the outer side of the telescopic column (51).
8. The straight chute cleaning device of the coal sampling machine according to any one of claims 1 to 4, wherein the magnetic attraction device (4) comprises an electromagnetic ring (41), the outer annular surface of the electromagnetic ring (41) is connected with the axial moving device (3), the inner annular surface of the electromagnetic ring (41) is arranged corresponding to the scraping cutter (2), and a gap is reserved between the inner annular surface of the electromagnetic ring (41) and the outer tube wall of the straight chute (1).
9. The coal sampling machine straight chute cleaning device according to claim 8, wherein the axial width of the electromagnetic ring (41) is greater than or equal to the axial width of the scraping cutter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508387.9U CN221086621U (en) | 2023-09-15 | 2023-09-15 | Coal sampling machine straight elephant trunk cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508387.9U CN221086621U (en) | 2023-09-15 | 2023-09-15 | Coal sampling machine straight elephant trunk cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221086621U true CN221086621U (en) | 2024-06-07 |
Family
ID=91328343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322508387.9U Active CN221086621U (en) | 2023-09-15 | 2023-09-15 | Coal sampling machine straight elephant trunk cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221086621U (en) |
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2023
- 2023-09-15 CN CN202322508387.9U patent/CN221086621U/en active Active
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