CN105664385B - Portable backpack descent control device - Google Patents
Portable backpack descent control device Download PDFInfo
- Publication number
- CN105664385B CN105664385B CN201610219527.2A CN201610219527A CN105664385B CN 105664385 B CN105664385 B CN 105664385B CN 201610219527 A CN201610219527 A CN 201610219527A CN 105664385 B CN105664385 B CN 105664385B
- Authority
- CN
- China
- Prior art keywords
- friction plate
- friction
- spline
- auxiliary
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/18—Other single parts for rope lowering-devices, e.g. take-up rollers for ropes, devices for shooting ropes
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Lowering Means (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a convenient backpack descent control device which comprises a shell provided with a descent control rope outlet, friction plates and a descent control rope, wherein the shell is provided with shoulder straps, a rotating shaft used for installing the friction plates and winding the descent control rope is arranged in the shell, the friction plates comprise a main friction plate and an auxiliary friction plate which is arranged opposite to the main friction plate and used for reducing the descent speed of the descent control device, the shell is connected with a friction box, the main friction plate is arranged in a cavity of the friction box and fixedly connected with the rotating shaft, and a control device used for adjusting the friction force between the auxiliary friction plate and the main friction plate is connected with the friction box in a sliding manner. The invention has simple structure, convenient operation, safety, reliability, time saving and labor saving.
Description
Technical Field
The invention relates to high-rise escape equipment, in particular to a portable backpack descent control device.
Background
With the brisk development of the building industry, high-rise buildings rise, and high-rise buildings such as high-rise buildings become visible everywhere in our daily life, and bring a series of problems, for example, when a fire disaster or other dangerous situations happen to a high-rise building, people with dense smoke and intense fire are difficult to escape from stairs and elevators normally, under the enclosure of dense smoke and toxic gas and intense flame, many people bury the fire sea, and according to statistics, 1 ten thousand fires happen every day all over the world, 2000 people die, 3000 people with sand-broken drugs 4000 are injured, direct property loss caused by the fire every year reaches more than 10 yuan, especially, a serious malignant fire disaster which causes the death of dozens of people and hundreds of people occurs, and the life safety of people cannot be guaranteed continuously. How to flee is the problem that urgent solution at present, traditional flee and adopt slowly falling ware and lifesaving rope, adopt the mode of lifesaving rope to make personal safety have the hidden danger, and current slowly falling ware is too bulky, and it is relatively troublesome to operate, and urgent need a portable, safety at present, easy operation slowly falls the ware and solves the problem of high building escape.
Disclosure of Invention
In order to solve the problems, the invention provides the convenient backpack descent control device which is simple in structure, convenient to operate, safe, reliable, time-saving and labor-saving.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a ware slowly falls in convenient backpack, is including being equipped with the casing that slowly falls the rope export, friction disc and slowly fall the rope, be equipped with the both shoulders braces on the casing, be equipped with the pivot that is used for installing the friction disc and twines slowly to fall the rope in the casing, the friction disc includes main friction disc and sets up the vice friction disc that is used for reducing slowly to fall ware falling speed relatively with main friction disc, is connected with a friction case on the casing, and main friction disc is located in the friction case cavity and with pivot fixed connection, has a controlling means who is used for adjusting vice friction disc and main friction disc frictional force with friction case sliding connection.
Foretell convenient backpack is slowly fallen ware, controlling means is including locating the spline bearing on the friction case and with spline bearing matched with spline stepped shaft, spline stepped shaft one end be equipped with the screw thread and with vice friction disc threaded connection, be equipped with the nut dog that prevents spline stepped shaft and break away from vice friction disc at spline stepped shaft screw thread end, be equipped with the spring that is used for increasing thrust and assists spline stepped shaft to remove vice friction disc between vice friction disc and the friction case, the other end of spline stepped shaft is equipped with a handle that is used for adjusting vice friction disc and main friction disc frictional force.
The portable backpack descent control device further comprises a control system, wherein the control system comprises a speed sensor arranged on the rotating shaft, a signal receiver for receiving a speed signal of the speed sensor, a CPU for processing the speed signal, and a signal transmitter for transmitting a signal processed by the CPU to the control device, and the speed sensor, the signal receiver and the signal transmitter are all electrically connected with the CPU.
Foretell convenient backpack slowly falls ware, controlling means including locate the spline groove on the friction box and with spline groove complex integral key shaft, integral key shaft one end is fixed with vice friction disc, the other end of integral key shaft is fixed with a dog that prevents that the integral key shaft from breaking away from the spline groove, still includes a hydraulic means that is used for driving vice friction disc along spline groove lateral shifting.
The hydraulic device comprises a hydraulic cylinder fixed with the auxiliary friction plate and the friction box, the hydraulic cylinder supplies pressure through a hydraulic pump, the hydraulic pump is driven by a servo motor, and the servo motor is controlled by a control system.
Foretell convenient backpack is slowly fallen ware is connected with a fixed disk that is equipped with the holding chamber through elastomeric element with main friction disc, the holding intracavity is located to main friction disc, fixed disk and pivot fixed connection, be equipped with the baffle that is used for preventing slowly falling the skew displacement of rope in the pivot.
The portable backpack descent control device comprises a left shell and a right shell, wherein the left shell and the right shell are respectively provided with a plurality of connecting parts for connection, and the middle positions above the left shell and the right shell are respectively provided with a semicircular hole.
The portable backpack descent control device is characterized in that one end of each shoulder strap is fixed on the shell, the other end of each shoulder strap is provided with a buckle, the shell is provided with a pull ring which is matched with the buckle and used for hooking the shoulder straps, and the pull rings are arranged in a plurality.
According to the convenient backpack descent control device, the spring for increasing the thrust to assist the control device to move the auxiliary friction plate is arranged between the auxiliary friction plate and the friction box, the auxiliary friction plate is provided with the groove and the guide hole respectively, the guide rod matched with the guide hole is arranged between the auxiliary friction plate and the friction box, one end of the guide rod is fixed with the friction box, the other end of the guide rod is provided with the baffle, and the spring is arranged on the guide rod.
The invention solves the technical problem and has the advantages that: the control device is adopted to control the contact between the auxiliary friction plate and the main friction plate, so that the friction force can be adjusted conveniently and quickly; the control device adopts a mode that a spline stepped shaft with threads is matched with a spline bearing to realize transverse movement of the auxiliary friction plate, the handle is used for real-time adjustment, the operation and the control are convenient, the magnitude of friction force can be automatically adjusted according to the emergency degree of the situation, so that the descending speed is controlled, the application range is wide, the safety and the convenience are realized, the control device adopts a hydraulic cylinder to drive the auxiliary friction plate to drive the spline shaft fixed with the auxiliary friction plate to realize the movement of the auxiliary friction plate along the spline groove, the friction force between the main friction plate and the auxiliary friction plate is adjusted, and the; the control system adopts a speed sensor, a signal receiver, a CPU and a signal transmitter to control a servo motor in the control device, thereby realizing the extension and contraction of the hydraulic cylinder, having high automation degree, accurate control and convenient control; the main friction plate is arranged on the fixed disc through an elastic component and is fixedly connected with the rotating shaft, and pretightening force is generated at the threaded connection position of the auxiliary friction plate when the main friction plate is in friction with the auxiliary friction plate, so that the auxiliary friction plate is prevented from loosening in the moving process; the control device moves the auxiliary friction plate in a mode of connecting the adjusting rod with the friction box through threads, and is simple in structure, convenient and fast; the baffle plate is arranged on the rotating shaft, so that the slow descending rope is always positioned in the middle position, the friction between the slow descending rope and the outlet on the shell is avoided, and the service life of the slow descending rope is prolonged; the pull ring sets up to a plurality ofly, can adapt to the crowd of different sizes, has increased accommodation.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a left side view of a first embodiment of the present invention;
FIG. 3 is a partial enlarged view of portion A of the present invention;
FIG. 4 is a partial enlarged view of portion B of the present invention;
FIG. 5 is a partial enlarged view of portion C of the present invention;
FIG. 6 is a cross-sectional view of a splined stepped shaft and splined bearing of the present invention;
FIG. 7 is a schematic structural view of a spline stepped shaft according to the present invention;
FIG. 8 is a second schematic structural view of the present invention;
FIG. 9 is an enlarged view of a portion D of the present invention;
FIG. 10 is a cross-sectional view of the spline shafts and spline grooves in the present invention;
fig. 11 is a schematic circuit diagram of a control system according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Example 1
As shown in fig. 1, 2, 3, 4, 5, 6 and 7, a portable backpack descent control device comprises a casing 1 provided with a descent control rope outlet 2, a friction plate and a descent control rope 3, wherein a shoulder harness 4 is arranged on the casing 1, the descent control device is carried on the body during escape, one end of the shoulder harness 4 is fixed on the casing 1 in a riveting manner, the other end of the shoulder harness 4 is provided with a buckle 5, the casing 1 is provided with a pull ring 6 which is matched with the buckle 5 and used for hooking the shoulder harness 4, the pull ring 6 is longitudinally arranged to adapt to people with different body types, the pull ring 6 is provided with a plurality of pull rings 6, different positions of the pull rings 6 are selected according to different body types, the casing 1 is further described, the casing comprises a left casing and a right casing, the left casing and the right casing are respectively provided with a plurality of connecting parts 7 for connection, and are connected through bolts, and semicircular holes are respectively arranged at the middle positions above the left casing and, so that the descent control rope 3 extends out of the casing 1, in order to effectively place the descent control rope 3 and realize the descent control device, a rotating shaft 8 for installing friction plates and winding the descent control rope 3 is arranged in the casing 1, the rotating shaft 8 is fixedly arranged on the casing 1 through a bearing 9, in order to enable the descent control rope 3 to be always positioned in the middle of the rotating shaft 8 in the retracting process to prevent the descent control rope 3 from being deviated to cause the friction between the descent control rope 3 and the outlet 2 on the casing 1 to cause damage, a baffle plate 10 for preventing the deviation and displacement of the descent control rope 3 is arranged on the rotating shaft 8, one end of the descent control rope 3 is tied on the rotating shaft 8, the other end of the descent control rope 3 is provided with a buckle 11 or a hook for fixing on a building body, the friction plates comprise a main friction plate 12 and an auxiliary friction plate 13 which is arranged opposite to the main friction plate 12 and is used for reducing the descent control device, a friction box 14 is connected with, the main friction plate 12 is arranged in the cavity of the friction box 14 and fixedly connected with the rotating shaft 8, specifically, the main friction plate 12 is connected with a fixed disk 35 provided with a containing cavity through an elastic component 36, the fixed disk 35 is provided with a blocking part for preventing the main friction plate 12 from being separated from the containing cavity, the elastic component 36 is a plurality of springs, specifically, guide holes 37 are arranged on the fixed disk 35 and the main friction plate 12, a guide post is arranged between the guide holes 37 on the fixed disk 35 and the main friction plate 12, the springs are arranged on the guide posts, the main friction plate 12 is arranged in the containing cavity, the fixed disk 35 is fixedly connected with the rotating shaft 8, specifically, the fixed disk 35 is fixed with a sleeve 15 in a welding mode, the connected sleeve 15 is fixed with the rotating shaft 8 in a key connection mode, and a control device for adjusting the friction force between the auxiliary friction plate 13 and the main, further describing the control device, the control device comprises a spline bearing 16 arranged on the friction box 14 and a spline stepped shaft 17 matched with the spline bearing 16, one end of the spline stepped shaft 17 is provided with threads and is in threaded connection with the auxiliary friction plate 13, a nut stop 18 for preventing the spline stepped shaft 17 from being separated from the auxiliary friction plate 13 is arranged at the threaded end of the spline stepped shaft 17, in order to prevent the nut stop 18 from falling off, a hole 19 is arranged at the threaded end of the spline stepped shaft 17, a bolt 20 is arranged in the hole 19, a spring 21 for increasing thrust to assist the spline stepped shaft 17 to move the auxiliary friction plate 13 is arranged between the auxiliary friction plate 13 and the friction box 14, specifically, a groove 22 and a guide hole 39 are respectively arranged on the auxiliary friction plate 13, a guide rod 24 matched with the guide hole 39 is arranged between the auxiliary friction plate 13 and the friction box 14, one end of the guide rod 24 is fixed with the friction box 14, the spring 21 is arranged on the guide rod 24. In order to realize the initial selection of the friction force and save time for rescue and escape, a dial 25 is arranged on the outer side of the friction box 14, 6 scales from 0 to 5 are arranged on the dial 25, each scale represents different gears, each gear corresponds to the friction force with different sizes, different friction forces are set by selecting different gears so as to control the descending speed, a round hole matched with the spline stepped shaft 17 is arranged in the middle of the dial 25, a handle 26 used for adjusting the friction force between the auxiliary friction plate 13 and the main friction plate 12 is arranged at the other end of the spline stepped shaft 17, when the escape is needed, the friction force is selected in advance through the weight, when an emergency situation occurs, the descending speed needs to be accelerated, the handle 26 is rotated, different scale gears are selected, the spline stepped shaft 17 rotates in the spline bearing 16, the auxiliary friction plate 13 in threaded connection with the threaded end of the spline stepped shaft 17 transversely moves to be in contact with the main friction plate 12, so that the friction force is adjustable.
Example 2
As shown in fig. 8, 9, 10 and 11, the difference from embodiment 1 is that: the speed sensor 27 is arranged on the rotating shaft 8, the signal receiver is used for receiving speed signals of the speed sensor 27, the CPU is used for processing the speed signals, signals processed by the CPU are sent to the signal transmitter of the control device, and the speed sensor 27, the signal receiver and the signal transmitter are all electrically connected with the CPU. The control device comprises a spline groove 28 arranged on the friction box 14 and a spline shaft 29 matched with the spline groove 28, one end of the spline shaft 29 is fixed with the auxiliary friction plate 13, the fixing is well known by those skilled in the art, the fixing can adopt a welding or screw connection mode, the other end of the spline shaft 29 is fixed with a stop 30 for preventing the spline shaft 29 from being separated from the spline groove 28, the control device also comprises a hydraulic device for driving the auxiliary friction plate 13 to move transversely along the spline groove 28, further describing the hydraulic device, the hydraulic device comprises a hydraulic cylinder 31 fixed with the auxiliary friction plate 13 and the friction box 14, the hydraulic cylinder 31 is supplied with pressure by a hydraulic pump 32, the hydraulic pump 32 is driven by a servo motor 33, the servo motor 33 is supplied with power by a storage battery 34, the servo motor 33 is controlled by a control system, when the speed sensor 27 detects that the rotating speed of, the signal is sent to a signal receiver, the signal receiver receives a speed signal and transmits the speed signal to a CPU, the CPU transmits the processed signal to a signal transmitter, the signal transmitter transmits the signal to a servo motor 33, the servo motor 33 drives a hydraulic pump 32 to achieve stretching of a hydraulic cylinder 31, and control over friction force between the auxiliary friction plate 13 and the main friction plate 12 is completed.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (4)
1. The utility model provides a ware slowly falls in convenient backpack, is including being equipped with the casing that slowly falls the rope export, friction disc and slowly fall the rope, be equipped with both shoulders braces, its characterized in that on the casing: the friction plate comprises a main friction plate and an auxiliary friction plate which is arranged opposite to the main friction plate and used for reducing the descending speed of the descent control device, a friction box is connected to the shell, the main friction plate is arranged in a cavity of the friction box and fixedly connected with the rotating shaft, a control device used for adjusting the friction force between the auxiliary friction plate and the main friction plate is connected with the friction box in a sliding manner, the control device comprises a spline bearing arranged on the friction box and a spline stepped shaft matched with the spline bearing, one end of the spline stepped shaft is provided with threads and is in threaded connection with the auxiliary friction plate, a nut stop block used for preventing the spline stepped shaft from being separated from the auxiliary friction plate is arranged at the threaded end of the spline stepped shaft, a spring used for increasing thrust to assist the spline stepped shaft to move the auxiliary friction plate is arranged between the auxiliary friction plate and the friction box, and a handle used for adjusting the friction force between the auxiliary friction plate and the main friction plate, the spring is arranged on the guide post, the main friction plate is arranged in the accommodating cavity, the fixed disk is fixedly connected with the rotating shaft, the rotating shaft is provided with a baffle plate for preventing the slow descending rope from deviating and displacing, the spring for increasing thrust to assist the spline stepped shaft to move the auxiliary friction plate is arranged between the auxiliary friction plate and the friction box, the springs are approximately symmetrically distributed on two sides of the auxiliary friction plate, the auxiliary friction plate is respectively provided with a groove and a guide hole, a guide rod matched with the guide hole is arranged between the auxiliary friction plate and the friction box, one end of the guide rod is fixed with the friction box, the other end of the guide rod is provided with a baffle plate, and the spring is arranged on the guide rod.
2. The utility model provides a ware slowly falls in convenient backpack, is including being equipped with the casing that slowly falls the rope export, friction disc and slowly fall the rope, be equipped with both shoulders braces, its characterized in that on the casing: the friction plate comprises a main friction plate and an auxiliary friction plate which is arranged opposite to the main friction plate and used for reducing the descending speed of the descent control device, the shell is connected with a friction box, the main friction plate is arranged in a cavity of the friction box and fixedly connected with the rotating shaft, the friction box is connected with a control device used for adjusting the friction force between the auxiliary friction plate and the main friction plate in a sliding manner, the control system also comprises a control system, the control system comprises a speed sensor arranged on the rotating shaft, a signal receiver used for receiving a speed signal of the speed sensor, a CPU used for processing the speed signal and a signal transmitter used for transmitting the signal processed by the CPU to the control device, and the speed sensor, the signal receiver and the signal transmitter are all electrically connected with the CPU; the control device comprises a spline groove arranged on the friction box, a spline shaft matched with the spline groove, a hydraulic device and a control device, wherein one end of the spline shaft is fixed with the auxiliary friction plate, the other end of the spline shaft is fixed with a stop block for preventing the spline shaft from being separated from the spline groove, and the hydraulic device is used for driving the auxiliary friction plate to transversely move along the spline groove; the hydraulic device comprises hydraulic cylinders fixed with the auxiliary friction plate and the friction box, the hydraulic cylinders are approximately symmetrically distributed on two sides of the auxiliary friction plate, the hydraulic cylinders supply pressure through hydraulic pumps, the hydraulic pumps are driven by servo motors, and the servo motors are controlled through a control system; the main friction plate is arranged in the accommodating cavity, the fixed disc is fixedly connected with the rotating shaft, and the rotating shaft is provided with a baffle plate used for preventing the slow descending rope from deviating and displacing.
3. The portable backpack descent control device of claim 1 or 2, wherein: the casing includes left and right casing, is equipped with a plurality of connecting portions that are used for connecting on the left and right casing respectively, and left and right casing top intermediate position is equipped with the semicircle orifice respectively.
4. The portable backpack descent control device of claim 1 or 2, wherein: one end of each shoulder strap is fixed on the shell, the other end of each shoulder strap is provided with a buckle, the shell is provided with a plurality of pull rings which are matched with the buckles and used for hooking the shoulder straps, and each pull ring is provided with a hook.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610219527.2A CN105664385B (en) | 2016-04-11 | 2016-04-11 | Portable backpack descent control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610219527.2A CN105664385B (en) | 2016-04-11 | 2016-04-11 | Portable backpack descent control device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105664385A CN105664385A (en) | 2016-06-15 |
CN105664385B true CN105664385B (en) | 2021-05-07 |
Family
ID=56309528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610219527.2A Active CN105664385B (en) | 2016-04-11 | 2016-04-11 | Portable backpack descent control device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105664385B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107866008B (en) * | 2016-09-23 | 2021-09-14 | 霍尼韦尔国际公司 | Descent system comprising a safety rope reel for use with a rescue descent device |
CN107416614A (en) * | 2017-05-04 | 2017-12-01 | 张文革 | Damper |
CN107158587A (en) * | 2017-07-18 | 2017-09-15 | 张奇维 | High-rise building escape device |
CN108465167B (en) * | 2018-04-10 | 2020-06-19 | 浙江海洋大学 | High-rise escape system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2691638Y (en) * | 2004-01-18 | 2005-04-13 | 陈健良 | High building multi-person life saving apparatus |
CN201684311U (en) * | 2010-06-08 | 2010-12-29 | 尹业宏 | Friction reciprocating type high building escape device |
CN201997009U (en) * | 2010-11-03 | 2011-10-05 | 北京联合大学生物化学工程学院 | Slow descending apparatus |
CN101711910B (en) * | 2009-07-14 | 2011-12-21 | 应小平 | Portable automatic descending device |
CN103446678A (en) * | 2012-05-30 | 2013-12-18 | 江苏康宝制药有限公司 | High rise escaping device |
CN203408381U (en) * | 2013-07-19 | 2014-01-29 | 广西大学 | Frictional high-rise escape device |
CN205698934U (en) * | 2016-04-11 | 2016-11-23 | 张文革 | A kind of convenient backpack descending lifeline |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8167090B2 (en) * | 2010-09-14 | 2012-05-01 | Michael Ralph L | Apparatus for safely lowering user from structure |
-
2016
- 2016-04-11 CN CN201610219527.2A patent/CN105664385B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2691638Y (en) * | 2004-01-18 | 2005-04-13 | 陈健良 | High building multi-person life saving apparatus |
CN101711910B (en) * | 2009-07-14 | 2011-12-21 | 应小平 | Portable automatic descending device |
CN201684311U (en) * | 2010-06-08 | 2010-12-29 | 尹业宏 | Friction reciprocating type high building escape device |
CN201997009U (en) * | 2010-11-03 | 2011-10-05 | 北京联合大学生物化学工程学院 | Slow descending apparatus |
CN103446678A (en) * | 2012-05-30 | 2013-12-18 | 江苏康宝制药有限公司 | High rise escaping device |
CN203408381U (en) * | 2013-07-19 | 2014-01-29 | 广西大学 | Frictional high-rise escape device |
CN205698934U (en) * | 2016-04-11 | 2016-11-23 | 张文革 | A kind of convenient backpack descending lifeline |
Also Published As
Publication number | Publication date |
---|---|
CN105664385A (en) | 2016-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105664385B (en) | Portable backpack descent control device | |
CN109969279A (en) | A kind of cable lay climbing robot | |
CN105688340B (en) | Novel multifunctional descent control device capable of circularly ascending and descending | |
CN101711910B (en) | Portable automatic descending device | |
CN103007459A (en) | Overhead working anti-falling device | |
CN102844518B (en) | To the system using the personnel of cat ladder to protect | |
CN201337768Y (en) | Reciprocating descent control device | |
CN205698933U (en) | A kind of Multifunction descending lifeline of lifting capable of circulation | |
CN102949786A (en) | Recyclable hydraulic damping descent control device with stall protection | |
CN108704224B (en) | High-altitude descent control device | |
CN102068771A (en) | High-rise descent control device based on hydraulic damping | |
CN209778238U (en) | Lifting mechanism for coal bunker | |
CN204147445U (en) | A kind of Novel high-rise is slow falls escape device | |
CN205698934U (en) | A kind of convenient backpack descending lifeline | |
CN205698938U (en) | Rope fast erecting device is crossed in fire-fighting | |
CN201453863U (en) | Portable automatic descending device | |
CN201291003Y (en) | Manual portable lowering device | |
CN202892704U (en) | Electric transmission line tower climbing falling-proof device | |
CN2805819Y (en) | High-building fleeing device with rope for single person | |
CN2339243Y (en) | Altitude life-saving device | |
CN204138092U (en) | Self-service escape, transport pulley gear | |
CN115300816B (en) | Slowly lowering device | |
CN220588767U (en) | Fall protection device | |
CN202506007U (en) | Tall building life escape device | |
CN201543127U (en) | Simple friction type descent control device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Zhang Guohua Inventor after: Zhang Wenge Inventor before: Zhang Wenge |
|
CB03 | Change of inventor or designer information |