CN111395405B - Self-adaptive well lid positioning labeling prompting device and method thereof - Google Patents
Self-adaptive well lid positioning labeling prompting device and method thereof Download PDFInfo
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- CN111395405B CN111395405B CN202010359344.7A CN202010359344A CN111395405B CN 111395405 B CN111395405 B CN 111395405B CN 202010359344 A CN202010359344 A CN 202010359344A CN 111395405 B CN111395405 B CN 111395405B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/40—Arrangements responsive to adverse atmospheric conditions, e.g. to signal icy roads or to automatically illuminate in fog; Arrangements characterised by heating or drying means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1481—Security devices, e.g. indicating unauthorised opening
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
Self-adaptation well lid mouth location mark suggestion device includes: the device comprises a stepping motor, a turntable, a traction rope, a first roller, a second roller, a pressure sensor, a third roller, a fourth roller, a hollow fan-shaped shell, a sliding block, an air bag, a main control unit, a driving unit, a stepping motor, an angle sensor and an encoder. Because radius R of well lid mouth is known to confirm, under the circumstances of different ponding degree of depth H and water velocity V, the device is at first through step motor release enough long haulage rope, then through step motor pull back haulage rope, at step motor pull back the in-process of haulage rope, the length L of haulage rope reduces gradually, and the contained angle B between the relative horizontal plane of haulage rope increases gradually simultaneously, when meeting the condition: and when L is cos (B) =r, the stepping motor stops pulling back the traction rope, at this time, the air bag is positioned right above the center of the sewer well lid, and the length of the traction rope is automatically adjusted to place the air bag right above the center of the sewer well lid, so that the positioning marking prompt of the sewer well lid is more accurate. Therefore, more accurate safety prompt is carried out on pedestrians and vehicles passing by, and the safety of the pedestrians and the vehicles is ensured. The invention also provides a self-adaptive well lid positioning labeling prompting method.
Description
Technical Field
The invention relates to the technical field of well lid safety protection, in particular to a self-adaptive well lid positioning marking prompting device and a method thereof.
Background
In the storm time festival, because urban drainage system's drainage capacity is not enough, there is certain ground potential difference between different places in the city simultaneously, after the storm fills up the sewer, the phenomenon of blowout will take place for too big and take place for the sewer well lid that is in the topography low-lying of ground, and the sewer well lid is turned over by the jack-up, and subaerial rivers can be with the well lid flushing away original position when turning over.
Sometimes, in order to reduce the obstruction of traffic caused by accumulated water on the road surface, maintenance personnel can open the sewer manhole cover so that the accumulated water on the road surface can quickly flow into the sewer.
Because ponding has certain degree of depth and the ponding on road surface is more turbid simultaneously, whether people are difficult to perceive the well lid on road surface by the rainwater rushing away original position, consequently, the sewer well lid mouth that loses the well lid has caused huge threat to people's life safety.
Because rainstorm, after the sewer well lid is washed away by water, whether the device automatic detection sewer well lid of laying in sewer well lid mouth position department is washed away by water, if the device detects the well lid and is washed away by water, the device automatic pop-up gasbag carries out location mark suggestion to the position of sewer well lid mouth to the haulage rope of laying in sewer well lid mouth position department is pulling the gasbag and is floating in the top of sewer well lid mouth to this carries out the safety suggestion to pedestrian and the vehicle that pass by: the well lid in this area is flushed away by water, do not get close to-! Thereby guaranteeing the safety of pedestrians and vehicles.
The airbag floating above the sewer manhole cover can give a certain safety prompt to pedestrians and vehicles passing by, but has some technical defects and problems.
For example, when the road area water is shallow and the traction rope for pulling the air bag is long, the air bag floating on the water surface is brought to a position which is far away from the axis of the sewer manhole cover by the road surface running water, and the positioning error of the air bag on the sewer manhole cover is large.
When the accumulated water on the road surface is deeper, the traction rope for pulling the air bag is shorter, the air bag is pulled by the traction rope to be immersed in the accumulated water and cannot float out of the water surface, and passers-by and vehicles cannot see the air bag above the well cover clearly, so that safety prompt can not be carried out on passers-by and vehicles.
Meanwhile, the influence of the depth of accumulated water, the speed of road water flow and the length of the traction rope on the positioning precision of the air bag floating above the sewer manhole cover on the manhole cover is considered.
When reminding device's haulage rope length is fixed, the sewer well lid is washed away simultaneously, at different ponding depths and road surface water velocity, and the gasbag is as follows to sewer well lid mouth positioning accuracy relation.
When urban road ponding, ponding degree of depth is fixed, the slower the road surface water velocity, the less the offset of gasbag relative sewer well lid mouth axle center position department, the more accurate the location of gasbag to sewer well lid mouth.
When urban road ponding, ponding depth is fixed, the faster the road surface water flow speed, the larger the offset of the position of the air bag relative to the axis of the sewer well cover mouth is, and the more inaccurate the positioning of the air bag to the sewer well cover mouth is.
When urban road ponding, road surface water velocity is fixed, ponding degree of depth is the darker, and the offset of gasbag relative sewer well lid mouth axle center position department is the less, and the gasbag is the location more accurate to the sewer well lid mouth.
When urban road ponding, road surface water velocity is fixed, ponding degree of depth is shallower, and the offset of gasbag relative sewer well lid mouth axle center position department is bigger, and the gasbag is inaccurate to the location of sewer well lid mouth.
Therefore, if the well lid is flushed away by water, the device simply and automatically pops up an air bag to carry out positioning marking prompt on the position of the sewer well lid opening, and the mode of carrying out positioning marking prompt on the well lid opening is inaccurate and has great error.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: after the sewer well lid is washed away by water, the position of the sewer well lid opening is more accurately positioned and marked for prompting through the prompting device.
Another technical problem to be solved is: when the depth of the accumulated water changes, the prompting device can automatically adjust the length of the traction rope according to the depth change of the current water level so as to adjust the position of the air bag above the sewer well cover opening, and the air bag is positioned right above the center of the sewer well cover opening.
The invention is realized by adopting the following technical scheme: the self-adaptive well lid positioning marking prompting device designed according to the purpose comprises: the device comprises a stepping motor, a turntable, a traction rope, a first roller, a second roller, a pressure sensor, a third roller, a fourth roller, a hollow fan-shaped shell, a sliding block, an air bag, a main control unit, a driving unit, a stepping motor, an angle sensor and an encoder. Because radius R of well lid mouth is known to confirm, under the circumstances of different ponding degree of depth H and water velocity V, the device is at first through step motor release enough long haulage rope, then through step motor pull back haulage rope, at step motor pull back the in-process of haulage rope, the length L of haulage rope reduces gradually, and the contained angle B between the relative horizontal plane of haulage rope increases gradually simultaneously, when meeting the condition: and when L is cos (B) =r, the stepping motor stops pulling back the traction rope, at this time, the air bag is positioned right above the center of the sewer well lid, and the length of the traction rope is automatically adjusted to place the air bag right above the center of the sewer well lid, so that the positioning marking prompt of the sewer well lid is more accurate. Therefore, more accurate safety prompt is carried out on pedestrians and vehicles passing by, and the safety of the pedestrians and the vehicles is ensured.
The turntable consists of an upper circular surface, a lower circular surface and a cylinder, wherein the upper bottom surface and the lower bottom surface of the cylinder are respectively connected with the central positions of the upper circular surface and the lower circular surface, and the radius of the circular surfaces of the upper circular surface and the lower circular surface is larger than that of the bottom surface of the cylinder. The bottom surface of carousel has a cylindrical recess, and the cylindrical recess of carousel bottom surface is fixed connection with step motor's pivot, and the carousel rotates along with step motor's rotation.
One end of the traction rope is wound on the turntable, and the other end of the traction rope is fixedly connected with the air bag. The hauling rope passes through the first roller, the second roller, the third roller, the fourth roller, the hollow fan-shaped shell and the sliding block in sequence to connect the turntable and the air bag together.
The main control unit controls the stepping motor to rotate forwards and reversely through the driving unit so as to control the winding and unwinding of the traction rope wound on the turntable.
The first roller, the second roller, the third roller and the fourth roller are cylindrical drums with grooves at the center positions of the side faces, the first roller, the second roller, the third roller and the fourth roller are fixed on a cylindrical rotating shaft, and when the traction rope moves, the traction rope drives the first roller, the second roller, the third roller and the fourth roller to rotate.
The grooves at the side surface center positions of the first roller, the second roller, the third roller and the fourth roller can well bind the traction rope on the rollers, so that the traction rope is not easy to break away from the rollers in the moving process.
An encoder is arranged in the first roller, and the encoder in the first roller is used for calculating the length of the pulled traction rope. In the process that the haulage rope is pulled out by the gasbag, the first gyro wheel rotates along with the removal of haulage rope, and the encoder that is located inside the first gyro wheel rotates along with the rotation of first gyro wheel, and the encoded value of encoder output changes along with the rotation of first gyro wheel. Therefore, the length of the pulling rope pulled out is obtained by recording and processing the coded value output by the encoder in real time through the main control unit.
The pressure sensor is installed to the side of second gyro wheel, and at the in-process of outwards paying out haulage rope, the pressure sensor of second gyro wheel side applys the pressure on the second gyro wheel to the haulage rope and detects.
In the process of paying out the traction rope outwards, when the pressure detected by the main control unit through the pressure sensor on the side surface of the second roller is larger than a preset pressure value, the traction rope is in a tightening state, and at the moment, the main control unit continuously controls the stepping motor to rotate to pay out the traction rope outwards through the driving unit; when the pressure detected by the main control unit through the pressure sensor on the side surface of the second roller is not larger than a preset pressure value, the traction rope is in a loose state, and the main control unit controls the stepping motor to stop rotating at the moment so that the traction rope is not outwards released.
The hollow fan-shaped shell is a hollow fan-shaped body, the upper bottom surface and the lower bottom surface of the hollow fan-shaped shell are fan-shaped surfaces, and the cambered surface in the side surface of the hollow fan-shaped shell is open. The upper bottom surface and the lower bottom surface of the hollow fan-shaped shell are respectively provided with an arc-shaped slideway, and the arc-shaped slideways of the upper bottom surface and the lower bottom surface of the hollow fan-shaped shell are mutually symmetrical.
The sliding block consists of three parts, namely an upper cylinder, a cuboid block and a lower cylinder from top to bottom. The upper bottom surface of the cuboid block is fixedly connected with the lower bottom surface of the upper cylinder, the lower bottom surface of the cuboid block is fixedly connected with the upper bottom surface of the lower cylinder, and the axes of the upper cylinder and the lower cylinder are positioned on the same straight line; a cylindrical hole penetrates through the front surface and the back surface of the cuboid, and the traction rope penetrates through the cylindrical hole on the sliding block.
The angle sensor is fixed in the upper cylinder of the slider and is used for detecting the deflection angle of the haulage rope relative to the horizontal plane. When the length of the traction rope changes, the traction rope drives the sliding block to slide on the arc-shaped slideway of the hollow fan-shaped shell, and the main control unit obtains the deflection angle of the traction rope relative to the horizontal plane in real time through the angle sensor.
The sliding block is clamped between the arc-shaped slide ways of the upper bottom surface and the lower bottom surface of the hollow fan-shaped shell and can move left and right along the arc-shaped slide ways.
The angle sensor is used as input equipment and connected with the main control unit, the driving unit is connected with the main control unit and the stepping motor, and the driving unit is used for driving the stepping motor.
The assembly steps are as follows.
Firstly, one end of a traction rope is wound on a turntable, and then the traction rope sequentially passes through a first roller, a second roller, a third roller, a fourth roller, a hollow fan-shaped shell and a sliding block to connect the turntable and the air bag together.
The self-adaptive well lid positioning labeling prompting method is as follows.
The invention automatically adjusts the length of the traction rope to place the air bag at the position right above the center of the sewer manhole cover.
Because radius R of well lid mouth is known to confirm, under the circumstances of different ponding degree of depth H and water velocity V, the device is at first through step motor release enough long haulage rope, then through step motor pull back haulage rope, at step motor pull back the in-process of haulage rope, the length L of haulage rope reduces gradually, and the contained angle B between the relative horizontal plane of haulage rope increases gradually simultaneously, when meeting the condition: and when L is cos (B) =r, the stepping motor stops pulling back the traction rope, at this time, the air bag is positioned right above the center of the sewer well lid, and the length of the traction rope is automatically adjusted to place the air bag right above the center of the sewer well lid, so that the positioning marking prompt of the sewer well lid is more accurate. Therefore, more accurate safety prompt is carried out on pedestrians and vehicles passing by, and the safety of the pedestrians and the vehicles is ensured.
Drawings
Fig. 1 is a block diagram of the structure of the present invention.
FIG. 2 is a schematic diagram of the invention for automatically adjusting the length of the haulage rope according to the water level depth.
Fig. 3 is a system block diagram of the present invention.
In fig. 1, 1 is a stepping motor, 2 is a turntable, 3 is a traction rope, 4 is a first roller, 5 is a second roller, 6 is a pressure sensor, 7 is a third roller, 8 is a fourth roller, 9 is a hollow fan-shaped shell, 10 is a sliding block, and 11 is an air bag.
In fig. 1, R is the radius of the sewer manhole cover, B is the included angle between the haulage rope and the horizontal plane, and H is the ponding depth.
Detailed Description
The invention is further illustrated in the following, in conjunction with the accompanying drawings and specific embodiments.
First embodiment.
When the water on the road surface is accumulated, the water flow direction of the road surface is determined, and the water flow flows from the position with higher topography to the position with lower topography.
The invention automatically adjusts the length of the traction rope to place the air bag at the position right above the center of the sewer manhole cover.
The control method is as follows.
As shown in fig. 1, because the radius R of the well cover is known to be determined, under the conditions of different water accumulation depths H and water velocities V, the device firstly releases a traction rope with enough length through a stepping motor, then pulls the traction rope back through the stepping motor, the length L of the traction rope is gradually reduced in the process of pulling the traction rope back through the stepping motor, and meanwhile, the included angle B between the traction rope and the horizontal plane is gradually increased, and when the conditions are satisfied: and when L is cos (B) =r, the stepping motor stops pulling back the traction rope, at this time, the projection of the air bag is positioned at the center position of the sewer manhole cover, namely, the air bag is positioned at the position right above the center of the sewer manhole cover, and the air bag is placed at the position right above the center of the sewer manhole cover by automatically adjusting the length of the traction rope, so that the positioning marking prompt of the sewer manhole cover is more accurate. Therefore, more accurate safety prompt is carried out on pedestrians and vehicles passing by, and the safety of the pedestrians and the vehicles is ensured.
Second embodiment.
As shown in fig. 1, the main control unit firstly controls the stepping motor to reversely rotate to pay out a traction rope with enough length through the driving unit, and then controls the stepping motor to forwardly rotate to reversely pull the traction rope through the driving unit.
In the process that the stepping motor outwards releases the traction rope, when the pressure detected by the main control unit through the pressure sensor on the side surface of the second roller is larger than a preset pressure value, the traction rope is in a tightening state, and at the moment, the main control unit continuously controls the stepping motor to reversely rotate to outwards release the traction rope through the driving unit; when the pressure detected by the main control unit through the pressure sensor on the side face of the second roller is not larger than a preset pressure value, the traction rope is in a loose state, and the traction rope is not suitable for being paid out at the moment, because the paid-out traction rope can be piled up in the turntable, the main control unit controls the stepping motor to stop rotating at the moment through the driving unit, and the traction rope is not paid out outwards. Under the general condition, because the water flow speed of the road surface is relatively high, the water flow impacts the air bag to tighten the traction rope, the pressure detected by the pressure sensor at the side surface of the second roller is larger than a preset pressure value, and in the process that the stepping motor outwards releases the traction rope, the traction rope on the turntable is pulled out by the tension generated by the water flow impacting the air bag.
In the process of pulling back the traction rope by the stepping motor, the traction rope is tightened due to the fact that the air bag floats along with the water flow of the road surface, the traction rope drives the first roller, the second roller, the third roller and the fourth roller to rotate, an encoder located inside the first roller rotates along with the rotation of the first roller, and the encoding value output by the encoder changes along with the rotation of the first roller. The main control unit records and processes the coded value output by the encoder in real time to obtain the pulled length of the traction rope.
In the process of pulling back the traction rope by the stepping motor, the traction rope drives the sliding block to slide on the arc-shaped slideway of the hollow fan-shaped shell, and the main control unit detects the deflection angle of the traction rope relative to the horizontal plane in real time through an angle sensor fixed in the upper cylinder of the sliding block.
In the process of pulling back the traction rope by the stepping motor, the length L of the traction rope is gradually reduced, meanwhile, the included angle B between the traction rope and the horizontal plane is gradually increased, and when the conditions are met: when L is cos (B) =r, the main control unit controls the stepping motor to stop pulling the traction rope through the driving unit, at this time, the projection of the air bag is located at the center position of the sewer manhole cover, that is, the air bag is located at the position right above the center of the sewer manhole cover, so that the air bag is placed at the position right above the center of the sewer manhole cover by automatically adjusting the length of the traction rope, and the positioning marking prompt of the sewer manhole cover is more accurate.
Third embodiment.
As shown in fig. 2, it is assumed that the S point position is relatively high with respect to the L point position, and the road surface water flow flows from the S point position to the L point position, that is, the water flow direction is from left to right in fig. 2.
Firstly, the device is arranged at the S point of the well lid opening, when the sewer well lid is flushed away by water at the same time when the road area is water, the air bag is pulled by the traction rope at the S point to float above the sewer well lid opening, and the traction rope is pulled to be tightened at the moment.
Because radius R of well lid mouth is known to confirm, when ponding degree of depth is H1, the device is at first through step motor release enough long haulage rope, then rethread step motor pull back haulage rope, at step motor pull back the in-process of haulage rope, the length L1 of haulage rope reduces gradually, and the contained angle B1 between the relative horizontal plane of haulage rope increases gradually simultaneously, when satisfying the condition: when L1 is cos (B1) =r, the stepping motor stops pulling back the traction rope, and the air bag is located at a position right above the center of the sewer manhole cover.
Ponding degree of depth is H2, when satisfying the condition: l2=cos (B2) =r, where the bladder is located directly above the center of the manhole cover.
Ponding degree of depth is H3, when satisfying the condition: l3=cos (B3) =r, where the bladder is located directly above the center of the manhole cover.
Therefore, in a certain ponding depth range, the device can automatically adjust the length of the traction rope, and then the air bag is placed at a position right above the center of the sewer well cover.
Likewise, when the depth of ponding changes, this device can follow ponding degree of depth automatically regulated haulage rope's length, and then place the gasbag in the position just above the sewer well lid mouth center.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention; all equivalent changes and modifications made in accordance with the present invention are intended to be covered by the scope of the appended claims.
Claims (2)
1. The utility model provides a self-adaptation well lid mouth location mark suggestion device which characterized in that, self-adaptation well lid mouth location mark suggestion device includes: the device comprises a stepping motor, a turntable, a traction rope, a first roller, a second roller, a pressure sensor, a third roller, a fourth roller, a hollow fan-shaped shell, a sliding block, an air bag, a main control unit, a driving unit, a stepping motor, an angle sensor and an encoder;
the turntable consists of an upper circular surface, a lower circular surface and a cylinder, wherein the upper bottom surface and the lower bottom surface of the cylinder are respectively connected with the central positions of the upper circular surface and the lower circular surface, and the radius of the circular surfaces of the upper circular surface and the lower circular surface is larger than that of the bottom surface of the cylinder; the bottom surface of the turntable is provided with a cylindrical groove, the cylindrical groove on the bottom surface of the turntable is fixedly connected with the rotating shaft of the stepping motor, and the turntable rotates along with the rotation of the stepping motor;
one end of the traction rope is wound on the turntable, and the other end of the traction rope is fixedly connected with the air bag; the hauling rope passes through the first roller, the second roller, the third roller, the fourth roller, the hollow fan-shaped shell and the sliding block in sequence to connect the turntable and the air bag together;
the main control unit controls the stepping motor to rotate forwards and reversely through the driving unit so as to control the winding and unwinding of the traction rope wound on the turntable;
the first roller, the second roller, the third roller and the fourth roller are cylindrical drums with grooves at the center positions of the side surfaces, and the first roller, the second roller, the third roller and the fourth roller are fixed on the cylindrical rotating shafts;
an encoder is arranged in the first roller, and the encoder in the first roller is used for calculating the length of the pulled traction rope; the encoder positioned in the first roller rotates along with the rotation of the first roller, and the encoded value output by the encoder changes along with the rotation of the first roller;
the method comprises the steps that a main control unit records and processes a coded value output by an encoder in real time to obtain the pulled length of a traction rope;
the pressure sensor is arranged on the side surface of the second roller, and in the process of paying out the traction rope outwards, the pressure sensor on the side surface of the second roller detects the pressure exerted on the second roller by the traction rope;
in the process of paying out the traction rope outwards, when the pressure detected by the main control unit through the pressure sensor on the side surface of the second roller is larger than a preset pressure value, the traction rope is in a tightening state, and at the moment, the main control unit continuously controls the stepping motor to rotate to pay out the traction rope outwards through the driving unit; when the pressure detected by the main control unit through the pressure sensor on the side surface of the second roller is not greater than a preset pressure value, the traction rope is in a loose state, and the main control unit controls the stepping motor to stop rotating at the moment so as not to pay out the traction rope any more;
the hollow fan-shaped shell is a hollow fan-shaped body, the upper bottom surface and the lower bottom surface of the hollow fan-shaped shell are fan-shaped surfaces, and cambered surfaces in the side surfaces of the hollow fan-shaped shell are open; the upper bottom surface and the lower bottom surface of the hollow fan-shaped shell are respectively provided with an arc-shaped slideway, and the arc-shaped slideways of the upper bottom surface and the lower bottom surface of the hollow fan-shaped shell are mutually symmetrical;
the sliding block consists of three parts, namely an upper cylinder, a cuboid block and a lower cylinder from top to bottom; the upper bottom surface of the cuboid block is fixedly connected with the lower bottom surface of the upper cylinder, the lower bottom surface of the cuboid block is fixedly connected with the upper bottom surface of the lower cylinder, and the axes of the upper cylinder and the lower cylinder are positioned on the same straight line; a cylindrical hole penetrates through the front surface and the back surface of the cuboid, and the traction rope penetrates through the cylindrical hole on the sliding block;
the angle sensor is fixed in the upper cylinder of the sliding block and is used for detecting the deflection angle of the traction rope relative to the horizontal plane; when the length of the traction rope is changed, the traction rope drives the sliding block to slide on the arc-shaped slideway of the hollow fan-shaped shell, and the main control unit obtains the deflection angle of the traction rope relative to the horizontal plane in real time through the angle sensor;
the sliding block is clamped between the arc-shaped slide ways of the upper bottom surface and the lower bottom surface of the hollow fan-shaped shell and moves left and right along the arc-shaped slide ways;
the angle sensor is used as input equipment and connected with the main control unit, the driving unit is connected with the main control unit and the stepping motor, and the driving unit is used for driving the stepping motor.
2. The positioning annotation prompting method of the self-adaptive well lid positioning annotation prompting device according to claim 1, wherein the positioning annotation prompting method comprises the following steps:
the air bag is placed at a position right above the center of the sewer well cover opening by automatically adjusting the length of the traction rope;
because radius R of well lid mouth is known to confirm, under the circumstances of different ponding degree of depth H and water velocity V, the device is at first through step motor release enough long haulage rope, then through step motor pull back haulage rope, at step motor pull back the in-process of haulage rope, the length L of haulage rope reduces gradually, and the contained angle B between the relative horizontal plane of haulage rope increases gradually simultaneously, when meeting the condition: and when L is cos (B) =r, the stepping motor stops pulling back the traction rope, and the air bag is positioned at a position right above the center of the sewer manhole cover.
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| CN202010359344.7A CN111395405B (en) | 2020-04-29 | 2020-04-29 | Self-adaptive well lid positioning labeling prompting device and method thereof |
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| CN202010359344.7A CN111395405B (en) | 2020-04-29 | 2020-04-29 | Self-adaptive well lid positioning labeling prompting device and method thereof |
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| CN101004355A (en) * | 2006-12-19 | 2007-07-25 | 美的集团有限公司 | Liquid level meter and measuring method thereof |
| KR20090011082U (en) * | 2008-04-25 | 2009-10-29 | 주식회사 준별에프알피산업 | Waterproof Cover for Manhole |
| CN203247690U (en) * | 2013-05-21 | 2013-10-23 | 易光林 | Urban sewage well position and water depth warning floating ball device |
| CN203420285U (en) * | 2013-07-25 | 2014-02-05 | 吴述毅 | Novel inspection well protective warning device |
| CN203716184U (en) * | 2013-12-27 | 2014-07-16 | 国家电网公司 | Manhole cover available for opening protection and alarm |
| CN104635495A (en) * | 2015-02-09 | 2015-05-20 | 北京航空航天大学 | Hierarchical control method for warp offset of stratospheric satellite with model parameter uncertainty |
| CN204662302U (en) * | 2015-05-08 | 2015-09-23 | 蔡晓程 | Inspection well cover loses automatic warning device |
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