CN214713847U - Self-speed-changing limiting lifesaving descent control device based on ultrasonic sensor - Google Patents
Self-speed-changing limiting lifesaving descent control device based on ultrasonic sensor Download PDFInfo
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- CN214713847U CN214713847U CN202120580578.4U CN202120580578U CN214713847U CN 214713847 U CN214713847 U CN 214713847U CN 202120580578 U CN202120580578 U CN 202120580578U CN 214713847 U CN214713847 U CN 214713847U
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Abstract
The utility model discloses a spacing lifesaving of self-changing speed slowly falls ware based on ultrasonic sensor, including ultrasonic sensor device, controlling means, automatic speed change device and buttock atress safety belt, the automatic speed change device only drives the rotatory frictional force that produces of centrifugal wheel clutch blocks in the beginning stage of falling to save oneself, and the ultrasonic sensor device surveys the distance value between personnel and the ground in real time and feeds back to controlling means, and controlling means compares the detected value with the settlement threshold value, if the detected value is greater than the threshold value, then keeps current descending speed; when the detection value is smaller than or equal to the threshold value, the control device controls a first driven centrifugal wheel friction block and a second driven centrifugal wheel friction block in the automatic speed changing device to rotate simultaneously, so that the friction force is increased, the descending speed of the personnel is slowed until the personnel reaches the ground, and the speed changing descending escape process is realized; the whole descending process does not need manual control of personnel, the time required by the escape process can be effectively shortened, and meanwhile, the safety of the personnel falling to the ground can be guaranteed.
Description
Technical Field
The utility model relates to a lifesaving slowly falls ware specifically is a spacing lifesaving slowly falls ware from variable speed based on ultrasonic sensor.
Background
With the increase of population density, high-rise buildings are increasing, and high-rise building fire accidents frequently occur, so that the means and tools for high-rise building fire escape and rescue are valued by people. Even if fire brigades in some developed cities are equipped with rescue equipment such as scaling ladders, the fire fighters still need time to arrive at the accident site and carry out rescue, and the gold rescue time of trapped people is easily missed. Therefore, the descent control device serving as escape equipment capable of realizing self-rescue of people becomes a hot research object in the industry.
The self-rescue descent control device for the high-rise building is mainly developed at present as follows: in a utility model with the patent number of CN201120358469.4, the high-rise friction descent control device provides a descent control device which drives a bilateral symmetry rolling bearing by a shaft, further drives a rope winding drum connected with the rolling bearing, and is controlled to brake by a disc brake drum controlled by a control handle; for another example: in the invention patent with the patent number of CN202010189862.9, the hydraulic damping descent control device for high-rise escape provides a descent control device which is connected with a top cover by a hinge, a connecting column is arranged at the top of a shell, and the descent control device controls the descent speed by means of the adjustment of a hand-press speed reducer by means of a speed reducing wheel of the descent control device shell and a speed reducing wheel rotating shaft which extends into a thread damper and a plectrum damper; for example, in the utility model with patent number CN201320583196.2, a pre-speed-adjusting cam type friction descent control device provides a descent control device in which two escape ropes are wound around a turntable in opposite directions, and engaged with a speed reduction mechanism through a transmission mechanism to generate variable friction force, so that people can descend at constant speed, and people with different weights can descend at constant speed; for another example, in patent CN201710091974.9, a reciprocating descent control device for escape is provided, which uses a common gear transmission and a transmission and damping device arranged in an internal cavity of the descent control device to change the frictional resistance moment at appropriate time, so as to achieve the purpose of uniform descent.
From the above, at present, research results for self-rescue descent control devices are not few, but the control of the descent control speed mainly focuses on damping control, constant-speed descent of a deceleration mechanism in engagement and manual control deceleration of the descent control device, so that the problems of human misoperation caused by fire burst and overlong escape time consumption in the descent control process are considered less, and the functions of the descent control device do not meet the requirements of high-altitude operators at present. Therefore, how to effectively reduce the time required by the escape process and ensure the safety of people falling to the ground becomes a problem to be solved urgently in the industry.
Disclosure of Invention
Problem to above-mentioned prior art exists, the utility model provides a spacing lifesaving of self-changing descends ware slowly based on ultrasonic sensor, whole decline process need not personnel manual control, can not only effectively reduce the process required time of fleing, can guarantee the security when personnel fall to the ground simultaneously again.
In order to realize the purpose, the utility model discloses a technical scheme is: an automatic speed-changing limiting lifesaving descent control device based on an ultrasonic sensor comprises an ultrasonic sensing device, a control device, an automatic speed-changing device, a descent control rope and a hip stressed safety belt,
the automatic speed change device comprises a shell, a rope pulley, a steering gear, a first driven centrifugal wheel friction block, a driving centrifugal wheel friction block, a second driven gear friction block, a second driven centrifugal wheel and a driving gear, wherein the steering gear, the first driven centrifugal wheel friction block, the driving centrifugal wheel friction block, the second driven gear friction block, the second driven centrifugal wheel and the driving gear are all positioned in the shell; the first driven centrifugal wheel friction block and the second driven gear friction block are respectively positioned on two sides of the driving centrifugal wheel friction block, the first driven centrifugal wheel friction block and the second driven gear friction block are respectively in transmission connection with the first driven gear and the second driven gear through transmission rods, the driving gear can move along the main transmission shaft along with the extension and retraction of the extension shaft, and the driving gear can be simultaneously in meshing transmission with the first driven gear and the second driven gear when the extension shaft reaches the maximum extension distance;
the slow descending rope is wound on the rope wheel, and one end of the slow descending rope is fixedly connected with the rope wheel; the other end of the slow descending rope is fixedly connected with the buttock stressed safety belt, and the ultrasonic sensing device and the control device are both arranged on the buttock stressed safety belt; the ultrasonic sensing device is used for detecting the distance between the buttock stressed safety belt and the ground and feeding back the distance to the control device;
and the control device is used for receiving the detection data of the ultrasonic sensing device and controlling the telescopic state of the extension shaft of the steering engine.
Further, the control device is a single chip microcomputer.
Further, the ultrasonic sensing device is a KS103 ultrasonic sensor.
Further, the steering engine is an SM150 magnetic coding steering engine.
Furthermore, the rope wheel consists of a bearing, a supporting structure and a rim, wherein the outer circumference of the rim is provided with a double-strand rope groove, the supporting structure is fixedly connected with the inner circumference of the rim, the bearing is arranged at the center of the supporting structure, and the supporting structure is in a five-pointed star shape.
Compared with the prior art, the utility model discloses an ultrasonic sensing device, controlling means, automatic speed change gear, slowly fall rope and buttock atress safety belt combined mode, after the person of saving oneself dresses buttock atress safety belt, begin to descend and save oneself, automatic speed change gear only drives the rotatory frictional force that produces of centrifugal wheel clutch blocks in the initial stage, personnel descend with very fast speed this moment, distance value between ultrasonic sensing device real-time detection personnel and the ground this moment, and feed back to controlling means, controlling means compares the detected value with the settlement threshold value, if the detected value is greater than the threshold value, then keep present descending speed; when the detection value is smaller than or equal to the threshold value, the control device controls a first driven centrifugal wheel friction block and a second driven centrifugal wheel friction block in the automatic speed changing device to rotate simultaneously, so that the friction force is increased, the descending speed of the personnel is slowed until the personnel reaches the ground, and the speed changing descending escape process is realized; therefore the utility model discloses whole descending process need not personnel manual control, can not only effectively reduce the process required time of fleing, can guarantee the security when personnel fall to the ground simultaneously again.
Drawings
FIG. 1 is a schematic structural view of an automatic transmission according to the present invention before a non-shifting operation;
FIG. 2 is a schematic structural view of the automatic transmission of the present invention after shifting;
FIG. 3 is a schematic view of the structure of the seat belt for applying force to the buttocks of the present invention;
fig. 4 is a schematic structural view of the rope sheave of the present invention.
In the figure: 1. a sheave; 2. a steering engine; 3. a first driven gear; 4. a first driven centrifugal wheel friction block; 5. a driving centrifugal wheel friction block; 6. a second driven centrifugal wheel friction block; 7. a second driven gear; 8. a driving gear; 9. an ultrasonic sensing device; 10. slowly descending the rope; 11. a hip stressed safety belt; 1-1, bearing; 1-2, a support structure; 1-3, rim.
Detailed Description
The present invention will be further explained below.
As shown in fig. 1 to 4, the utility model comprises an ultrasonic sensing device 9, a control device, an automatic transmission, a slow descending rope 10 and a hip force-bearing safety belt 11,
the automatic speed change device comprises a shell, a rope pulley 1, a steering engine 2, a first driven gear 3, a first driven centrifugal wheel friction block 4, a driving centrifugal wheel friction block 5, a second driven gear friction block 6, a second driven centrifugal wheel 7 and a driving gear 8, wherein the steering engine 2, the first driven gear 3, the first driven centrifugal wheel friction block 4, the driving centrifugal wheel friction block 5, the second driven gear friction block 6, the second driven centrifugal wheel 7 and the driving gear 8 are all positioned in the shell, the driving centrifugal wheel friction block 5 is in transmission connection with the rope pulley 1 positioned outside the shell through a main transmission shaft, the steering engine 2 is arranged on the main transmission shaft, and the driving gear 8 is fixed at the end part of an extending shaft of the steering engine and rotates coaxially with the rope pulley 1; the first driven centrifugal wheel friction block 4 and the second driven gear friction block 6 are respectively positioned at two sides of the driving centrifugal wheel friction block 5, the first driven centrifugal wheel friction block 4 and the second driven gear friction block 6 are respectively in transmission connection with the first driven gear 3 and the second driven gear 7 through transmission rods, the driving gear 8 can move along with the extension and retraction of the extension shaft along the main transmission shaft, and the driving gear 8 can be simultaneously in meshing transmission with the first driven gear 3 and the second driven gear 7 when the extension shaft reaches the maximum extension distance;
the slow descending rope 10 is wound on the rope wheel 1, and one end of the slow descending rope is fixedly connected with the rope wheel 1; the other end of the slow descending rope 10 is fixedly connected with a buttock stressed safety belt 11, and the ultrasonic sensing device 9 and the control device are both arranged on the buttock stressed safety belt 11; the ultrasonic sensing device 9 is used for detecting the distance between the hip stressed safety belt 11 and the ground and feeding back to the control device;
and the control device is used for receiving the detection data of the ultrasonic sensing device 9 and controlling the telescopic state of the extension shaft of the steering engine.
The control device, the rope pulley 1, the steering engine 2, the first driven centrifugal wheel friction block 4, the driving centrifugal wheel friction block 5, the second driven centrifugal wheel friction block 6, the hip stressed safety belt 11 and the ultrasonic sensing device 9 are all existing equipment or components.
Further, the control device is a single chip microcomputer.
Further, the ultrasonic sensor device 9 is a KS103 ultrasonic sensor.
Further, steering engine 2 is SM150 magnetic encoding steering engine.
Further, the rope pulley 1 is composed of a bearing 1-1, a supporting structure 1-2 and a rim 1-3, a double-strand rope groove is formed in the outer circumference of the rim 1-3, the supporting structure 1-2 is fixedly connected with the inner circumference of the rim 1-3, the bearing 1-1 is installed in the center of the supporting structure 1-2, and the supporting structure 1-2 is in a five-pointed star shape.
When the automatic speed change device works, a threshold value for speed change adjustment is set to be 8m and stored in a control device, the initial state of an extension shaft of a steering engine is a retraction state, the automatic speed change device of the utility model is fixed at a required position, then self-rescue personnel wear a buttock stressed safety belt 11, at the moment, the personnel drive a rope wheel 1 to rotate by utilizing self-weight, the rope wheel 1 rotates to enable a slow descending rope 10 to extend downwards, and then the personnel start descending, the steering engine 2, a driving gear 8 and a driving centrifugal wheel friction block 5 synchronously rotate through a main transmission shaft after the rope wheel 1 rotates, and then the driving centrifugal wheel friction block 5 generates friction force with a shell through rotation, so that the personnel can descend at a faster descending speed; the ultrasonic sensing device continuously works in the descending process, automatically detects once every 86ms, feeds detection data back to the control device, the control device compares the distance between a detected person and the ground with a threshold value, and if the detection value is greater than the threshold value, the current descending speed is kept; when the detection value is smaller than or equal to the threshold value, the control device controls the steering engine 2 to rotate to enable the extension shaft to extend out, so that the driving gear 8 is driven to move along the main transmission shaft, when the extension shaft reaches the maximum extension distance, the driving gear 8 is simultaneously meshed with the first driven gear 3 and the second driven gear 7 for transmission, at the moment, the first driven centrifugal wheel friction block 4 and the second driven centrifugal wheel friction block 6 both start to rotate and respectively generate friction with the shell, so that the friction force in the descending process is increased, the descending speed of a person is slowed until the person reaches the ground, and the speed change process is realized; in the whole descending process, the descending speed is high at the beginning so as to shorten the escape time, and the descending speed is reduced at a distance of 8m from the ground, so that the safety of people contacting the ground can be ensured.
Claims (5)
1. An automatic speed-changing limiting lifesaving descent control device based on an ultrasonic sensor is characterized by comprising an ultrasonic sensing device, a control device, an automatic speed-changing device, a descent control rope and a hip stressed safety belt,
the automatic speed change device comprises a shell, a rope pulley, a steering gear, a first driven centrifugal wheel friction block, a driving centrifugal wheel friction block, a second driven gear friction block, a second driven centrifugal wheel and a driving gear, wherein the steering gear, the first driven centrifugal wheel friction block, the driving centrifugal wheel friction block, the second driven gear friction block, the second driven centrifugal wheel and the driving gear are all positioned in the shell; the first driven centrifugal wheel friction block and the second driven gear friction block are respectively positioned on two sides of the driving centrifugal wheel friction block, the first driven centrifugal wheel friction block and the second driven gear friction block are respectively in transmission connection with the first driven gear and the second driven gear through transmission rods, the driving gear can move along the main transmission shaft along with the extension and retraction of the extension shaft, and the driving gear can be simultaneously in meshing transmission with the first driven gear and the second driven gear when the extension shaft reaches the maximum extension distance;
the slow descending rope is wound on the rope wheel, and one end of the slow descending rope is fixedly connected with the rope wheel; the other end of the slow descending rope is fixedly connected with the buttock stressed safety belt, and the ultrasonic sensing device and the control device are both arranged on the buttock stressed safety belt; the ultrasonic sensing device is used for detecting the distance between the buttock stressed safety belt and the ground and feeding back the distance to the control device;
and the control device is used for receiving the detection data of the ultrasonic sensing device and controlling the telescopic state of the extension shaft of the steering engine.
2. The self-speed-changing limiting lifesaving descent control device based on the ultrasonic sensor as claimed in claim 1, wherein the control device is a single chip microcomputer.
3. The self-speed-changing limit lifesaving descent control device based on the ultrasonic sensor as claimed in claim 1, wherein the ultrasonic sensing device is a KS103 ultrasonic sensor.
4. The self-speed-changing limiting lifesaving descent control device based on the ultrasonic sensor as claimed in claim 1, wherein the steering engine is an SM150 magnetically encoded steering engine.
5. The self-speed-changing limiting lifesaving descent control device based on the ultrasonic sensor as claimed in claim 1, wherein the rope wheel is composed of a bearing, a supporting structure and a rim, the outer circumference of the rim is provided with a bifilar rope groove, the supporting structure is fixedly connected with the inner circumference of the rim, the bearing is arranged at the center of the supporting structure, and the supporting structure is in a pentagram shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120580578.4U CN214713847U (en) | 2021-03-22 | 2021-03-22 | Self-speed-changing limiting lifesaving descent control device based on ultrasonic sensor |
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| CN202120580578.4U CN214713847U (en) | 2021-03-22 | 2021-03-22 | Self-speed-changing limiting lifesaving descent control device based on ultrasonic sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849093A (en) * | 2022-06-02 | 2022-08-05 | 杭州合泰安防科技有限公司 | Rescue descent control device with manual and electric double adjustment functions |
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2021
- 2021-03-22 CN CN202120580578.4U patent/CN214713847U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849093A (en) * | 2022-06-02 | 2022-08-05 | 杭州合泰安防科技有限公司 | Rescue descent control device with manual and electric double adjustment functions |
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