CN112138292B - Pendulum descent control device and working method thereof - Google Patents
Pendulum descent control device and working method thereof Download PDFInfo
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- CN112138292B CN112138292B CN202011192076.0A CN202011192076A CN112138292B CN 112138292 B CN112138292 B CN 112138292B CN 202011192076 A CN202011192076 A CN 202011192076A CN 112138292 B CN112138292 B CN 112138292B
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- 238000005381 potential energy Methods 0.000 description 3
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- 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
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Abstract
The utility model provides a pendulum descent control device and a working method thereof, wherein the pendulum descent control device comprises a descent control device body, the descent control device body comprises a shell, a rope winding wheel, a first gear, a first rotating shaft, a transmission device and a pendulum part, the first rotating shaft is rotationally connected in the shell, the rope winding wheel and the first gear are arranged on the first rotating shaft, the transmission device is fixedly arranged in the shell, the first gear is connected with the transmission device, one end of the pendulum part is rotationally connected with the inner wall of the shell, one end of the pendulum part close to the transmission device is provided with a connecting rod, and the connecting rod is connected with the transmission device; the ropes enter the rope winding wheel from one end of the shell and extend out of the shell from the other end. The utility model has the advantages of simple structure and capability of automatically adjusting the braking force according to the weight of a user.
Description
Technical Field
The utility model relates to the technical field of high-altitude descent control devices, in particular to a pendulum descent control device.
Background
With the development of social economy in China, the material life of people is improved, and high-frequency fire accidents are more and more. When a high-rise building encounters a major accident such as fire or earthquake, people in the building cannot escape due to the condition that a corridor and an elevator are blocked, destroyed and the like, rescue equipment can be used for escaping from an accident scene from a window. Therefore, the problems of emergency escape and safe evacuation of personnel in high floors are solved, and the current high-rise building fire fighting is carried out. In order to solve the technical problems, a high-rise descent control device is disclosed in the patent document with the Chinese patent application number of 201420399936.1 and the bulletin day of 2015.04.15, and comprises a support plate, a gear, a rope binding wheel, a steel wire rope and a hanging rod; the gears are two and meshed with each other and are fixed on the support plate in a rotatable manner; the two rope pulleys are coaxial with the two gears respectively and are fixed on the corresponding gears respectively; the steel wire rope is wound between the two rope bunching wheels; the hanging rod is fixed on the support plate; the utility model also comprises an automatic braking device which comprises a brake block I, a pulling block I, a handle I, a braking spring, a screw rod and a nut, wherein the brake block I, the pulling block I, the handle I, the braking spring, the screw rod and the nut are arranged on the inner side of the rope bundling wheel, gaps are reserved between the brake block I and the inner side of the rope bundling wheel, the handle I is connected with the pulling block I capable of pushing the brake block I outwards, the nut is fixed on a support plate and is in threaded connection with the screw rod, and the screw rod is connected with the middle part of the handle I through the braking spring; the utility model also comprises a manual braking device for manual braking of the downslide.
However, according to the technical solution disclosed in this document, the automatic braking device is configured to slow down the rope sheave by means of the brake pad, and the slow-down device has the same braking force for a user with a relatively light weight and a user with a relatively heavy weight, and when the user is too light or too heavy, there is a possibility that the slow-down or too small braking force cannot be achieved, and there is a potential safety hazard.
Disclosure of Invention
The utility model provides a pendulum bob descent control device and a working method thereof, wherein the pendulum bob descent control device is simple in structure and capable of automatically adjusting braking force according to the weight of a user.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the slow-falling device for the pendulum bob comprises a slow-falling device body, wherein the slow-falling device body comprises a shell, a rope winding wheel used for winding a rope, a first gear, a first rotating shaft, a transmission device and a pendulum bob part, the first rotating shaft is rotationally connected in the shell, the rope winding wheel and the first gear are arranged on the first rotating shaft, the transmission device is fixedly arranged in the shell, the first gear is connected with the transmission device, one end of the pendulum bob part is rotationally connected with the inner wall of the shell, a connecting rod is arranged at one end of the pendulum bob part, which is close to the transmission device, and the connecting rod is connected with the transmission device;
the transmission device comprises a second gear, a second rotating shaft and a transmission mechanism, wherein the second rotating shaft is rotationally connected with the shell, the second gear is arranged on the second rotating shaft, the transmission mechanism comprises a guide rod, a transmission wheel and a movable rod, the guide rod is arranged on one side of the transmission wheel and fixedly connected with the inner wall of the shell, the second gear is meshed with the first gear, the transmission wheel is arranged on the second rotating shaft and positioned on one side of the second gear, the transmission wheel is fixedly connected with a transmission cylinder on one side far away from the second gear, the middle part of the movable rod is provided with a guide groove, the transmission cylinder on the transmission wheel penetrates through and is slidingly connected in the guide groove of the movable rod, the connecting rod is connected with the movable rod, the transmission wheel rotates to drive the transmission cylinder to slide in the guide groove so as to enable the movable rod to move on the guide rod to drive the pendulum part to swing,
when the descent control device body falls along the rope, the rope enters the rope winding wheel from one end of the shell, the descent control device body falls along the rope to drive the rope winding wheel and the first gear to rotate, the first gear drives the second gear in the transmission device to move, the transmission wheel rotates under the drive of the second rotation shaft, the transmission wheel rotates to drive the transmission cylinder to slide in the guide groove, the transmission cylinder drives the movable rod to move on the guide rod along the height direction of the guide rod, the connecting rod is connected with the guide rod, so that the connecting rod moves up and down, one end of the pendulum part is fixed on the shell, the pendulum part is driven to reciprocate on the inner wall of the shell continuously to change the movement direction to apply work under the movement of the connecting rod, and if the weight of the user is heavier, the rope winding wheel rotates faster, the first gear rotates faster, the movable rod slides on the guide rod faster the swinging speed, and the pendulum part works to counteract part of gravitational potential energy through the pendulum part, so that the descent control device body does not fall too fast, the weight is automatically adjusted according to the weight of the user, and the purposes of the transmission wheel and the swing cylinder are achieved in a simple and simple structure are achieved through the guide groove.
Further, a lantern ring is arranged at one end of the movable rod close to the guide rod, the movable rod is sleeved on the guide rod through the lantern ring,
the device is characterized in that the collar is arranged on the movable rod to limit the movable range of the movable rod, so that the movable rod is prevented from sliding out of the guide rod, and the reliability of the movement of the movable rod on the guide rod is further determined.
Further, the transmission mechanism is provided with two groups; the pendulum parts are provided with two pendulum parts. Therefore, when the user descends by using the descent control device body, the two pendulum bobs are arranged to achieve better speed reduction effect and safer.
Further, the guide rod is provided with more than one ball along the height direction of the guide rod, the guide rod is also provided with a corresponding ball hole site, the ball protrudes out of the ball hole site, and the movable rod is provided with a sliding groove matched with the ball at one end close to the lantern ring. Like this, through ball and slip recess assorted, change the dynamic friction slip between guide bar and the movable rod into rolling friction, drive mechanism transmission effect is better, prevents that movable rod and guide bar from blocking in the slip in-process.
Further, a third gear and a third rotating shaft are further arranged between the first gear and the second gear, a mounting plate is arranged between the second gear and the driving wheel, and the third gear is rotatably connected to the mounting plate through the third rotating shaft. Therefore, the first gear and the second gear are connected through the third gear, and the second gear can be smaller in size, so that the descent control device body is compact in structure and small in size.
Further, the guide rods are provided with two guide rods; the two ends of the movable rod are respectively provided with a lantern ring, and the movable rod is sleeved on the guide rods at the two ends through the lantern rings at the two ends. Thus, the guiding effect is good.
Further, a rope inlet is formed in one side of the rope winding wheel of the shell; the shell is provided with a rope outlet at the other side of the rope winding wheel, and the shell is provided with a guide sleeve at the rope inlet and the rope outlet, so that the rope is prevented from being scratched when entering and leaving the descent control device main body.
Further, two sheaves are arranged in total around the rope sheave, be equipped with the rope reel between the sheaves, the centre of a circle of rope reel fixed connection both sides rim plate, the rim plate is equipped with the involute arch on being close to one side of rope reel, the involute arch extends to rim plate edge from the centre of a circle of rim plate and the involute arch sets up along the involute direction of rope reel, and the involute arch is perpendicular with the tangential direction of rope in crossing department in the tangential direction of crossing department at the involute arch, above setting, be equipped with the involute arch on one side that is close to the rope reel through the rim plate, make the rope when moving, can carry out the face contact with the involute arch, prevent to lead to the problem that slides too soon because the involute arch sets up along the involute direction of rope reel, thereby make the rope reel break away from the rope reel direction break away from the power in advance that produces when moving, because the involute arch is along the involute direction of rope reel sets up, and the involute arch is perpendicular with the tangential direction of rope in crossing department at crossing department in the tangential direction of involute arch, thereby in motion, contact with the involute arch and the rope, thereby stability can be prevented from producing a stability from the rope from the direction of the involute arch.
Further, the shell is provided with avoidance openings at two sides of the pendulum part in the swinging direction, and the avoidance openings provide a movable space for the swinging of the pendulum part.
The utility model also provides a working method of the pendulum bob descent control device, wherein the pendulum bob descent control device falls to drive the rope winding wheel and the first gear to rotate, the first gear drives the second gear in the transmission device to move, the transmission wheel is driven to rotate by the second rotation shaft, the transmission wheel rotates to drive the transmission cylinder to slide in the guide groove, the transmission cylinder drives the movable rod to move on the guide rod along the height direction of the guide rod, the connecting rod is driven to move, and the pendulum bob is driven to swing around the rotation connection point of the pendulum bob and the shell.
The device is characterized in that when a user falls down along the rope by using the descent control device body, the rope enters the rope winding wheel from one end of the shell, the descent control device body falls down along the rope to drive the rope winding wheel and the first gear to rotate, the first gear drives the second gear in the transmission device to move, the transmission wheel rotates under the drive of the second rotation shaft, the transmission wheel rotates to drive the transmission cylinder to slide in the guide groove, the transmission cylinder drives the movable rod to move on the guide rod along the height direction of the guide rod, the connecting rod is connected with the guide rod to enable the connecting rod to move up and down, one end of the pendulum part is fixed on the shell, the pendulum part is driven to reciprocate on the inner wall of the shell under the motion of the connecting rod to do work continuously changing the motion direction, if the weight of the user is heavier, the faster the rotation speed of the rope winding wheel is, the faster the rotation speed of the first gear is, the faster the sliding speed of the movable rod on the guide rod is, the swinging speed of the pendulum part is higher, and part of gravitational potential energy is counteracted by acting through the pendulum part, so that the descending speed of the descent control device body cannot be too fast.
Drawings
Fig. 1 is a schematic perspective view of a descent control device body according to the present utility model.
Fig. 2 is a schematic perspective view of another angle of the descent control device body according to the present utility model.
Fig. 3 is a schematic bottom view of the descent control device body according to the present utility model.
Fig. 4 is a schematic cross-sectional view of the structure at A-A in fig. 3.
Fig. 5 is a schematic perspective view of the inside of the descent control device body according to the present utility model.
Fig. 6 is a schematic perspective view showing another state of the internal structure of the descent control device according to the present utility model.
Fig. 7 is a schematic view showing a bottom view of the inside of the descent control device body according to the present utility model.
Fig. 8 is a partially enlarged schematic view at B in fig. 4.
Fig. 9 is a partially enlarged schematic view at C in fig. 5.
Fig. 10 is a schematic sectional view of the housing at D-D in fig. 3.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1-9, a pendulum descent control device comprises a descent control device body, wherein the descent control device body comprises a shell 1, a rope winding wheel 2 for winding a rope 6, a first gear 3, a first rotating shaft 31, a transmission device 4 and a pendulum part 5, the first rotating shaft 31 is rotatably connected in the shell 1, the rope winding wheel 2 and the first gear 3 are arranged on the first rotating shaft 31, the transmission device 4 is fixedly arranged in the shell 1, the first gear 3 is connected with the transmission device 4, one end of the pendulum part 5 is rotatably connected with the inner wall of the shell 1, one end of the pendulum part 5 close to the transmission device 4 is provided with a connecting rod 51, and the connecting rod 51 is connected with the transmission device 4; the ropes 6 enter the sheave 2 from one end of the housing 1 and extend out of the housing 1 from the other end.
The transmission device comprises a second gear 41, a second rotating shaft 411 and a transmission mechanism, wherein the second rotating shaft 411 is rotationally connected with the shell 1, the second gear 41 is arranged on the second rotating shaft 411, the transmission mechanism comprises a guide rod 421, a transmission wheel 422 and a movable rod 423, the guide rod 421 is arranged on one side of the transmission wheel 422 and fixedly connected with the inner wall of the shell 1, the second gear 41 is meshed with the first gear 3, the transmission wheel 422 is arranged on the second rotating shaft 411 and positioned on one side of the second gear 41, the transmission wheel 422 is fixedly connected with a transmission column 4221 on one side far away from the second gear 41, a guide groove 4231 is formed in the middle of the movable rod 423, the transmission column 4221 on the transmission wheel 422 penetrates through and is slidingly connected in the guide groove 4231 of the movable rod 423, the connecting rod 51 is rotationally connected with the movable rod 423, and the transmission wheel 422 rotationally drives the transmission column 4221 to slide in the guide groove 4231 so that the movable rod 423 moves on the guide rod 421 to drive the pendulum part 5 to swing. The movable rod 423 is provided with a collar 4232 at one end close to the guide rod 421, and the movable rod 423 is sleeved on the guide rod 421 through the collar 4232.
When the swing hammer slowly-descending device is in operation, a user sleeves the pendulum bob slowly-descending device, two ends of a rope are fixed, when the slowly-descending device body falls along the rope, the rope enters the rope winding wheel from one end of the shell, the slowly-descending device body falls along the rope to drive the rope winding wheel and the first gear to rotate, the first gear drives the second gear in the transmission device to move, the transmission wheel is driven to rotate under the drive of the second rotation shaft, the transmission wheel rotates to drive the transmission cylinder to slide in the guide groove, the transmission cylinder drives the movable rod to move on the guide rod in the height direction of the guide rod, and the connecting rod is connected with the guide rod, so that the connecting rod moves up and down, one end of the pendulum bob is fixed on the shell, and accordingly the pendulum bob is driven to reciprocate on the inner wall of the shell under the movement of the connecting rod.
The transmission mechanism 42 is provided with two groups; the pendulum parts 5 are provided with two in total. Therefore, when the user descends by using the descent control device body, the two pendulum bobs are arranged to achieve better speed reduction effect and safer.
In this embodiment, the guide rod 421 is provided with 8 balls 4211 along the height direction of the guide rod, the guide rod is further provided with corresponding ball holes, the balls are protruded from the ball holes, and the movable rod 423 is provided with a sliding groove 4233 matched with the balls at one end close to the collar 4232. Like this, through ball and slip recess assorted, change the dynamic friction slip between guide bar and the movable rod into rolling friction, drive mechanism transmission effect is better, prevents that movable rod and guide bar from blocking in the slip in-process.
A third gear 43 and a third rotating shaft 431 are further arranged between the first gear 3 and the second gear 41, the housing 1 is provided with a mounting plate 10 between the second gear 41 and the driving wheel, the third gear 43 is rotatably connected to the mounting plate 10 through the third rotating shaft 431, and the second gear 41 is rotatably connected to the mounting plate 10 through the second rotating shaft 411. Therefore, the first gear and the second gear are connected through the third gear, and the second gear can be smaller in size, so that the descent control device body is compact in structure and small in size.
The guide rods 421 are provided with two in total; the two ends of the movable rod 423 are respectively provided with a lantern ring 4232, and the movable rod 423 is sleeved on the guide rods 421 at the two ends through the lantern rings 4232 at the two ends. Thus, the guiding effect is good.
The involute bulge on the wheel disc can increase friction force between the descent control device and the rope, so that slipping is prevented, the rope is always tangent to the involute when entering the rope winding wheel and leaves the rope winding wheel, and therefore the rope cannot be blocked, and safety is improved.
The shell 1 is provided with a rope inlet 11 at one side of the rope winding wheel 2; the housing is provided with a rope outlet 12 on the other side of the rope reel. The shell 1 is provided with a guide sleeve 121 at the rope inlet 11 and the rope outlet 12, the inner wall of the shell 1 is provided with a rope guiding shaft 14 at one side of the rope inlet 11 and the rope outlet 12, and the rope guiding shaft 14 is provided with a rope guiding wheel 141, so that the rope is prevented from being scratched when entering and leaving the descent control device main body.
The rope winding wheel 2 is provided with two wheel discs 22 in total, a rope winding shaft 23 is arranged between the wheel discs 22, the rope winding shaft 23 is fixedly connected with the circle centers of the wheel discs 22 on two sides, the wheel discs 22 are provided with involute bulges 21 on one side close to the rope winding shaft 23, the involute bulges 21 extend from the circle centers of the wheel discs 22 to the edges of the wheel discs 22 and the involute bulges 21 are arranged along the involute direction of the rope winding wheel 2, and the tangential S direction of the intersection of the involute bulges and a rope is perpendicular to the tangential L direction of the intersection of the rope.
In this embodiment, the calculation formula of the involute convex position is:
x=R*cos(t)+R*t*sin(t)
y=R*sin(t)-R*t*cos(t)
wherein the angle of t is: t is more than or equal to 0 degree and less than or equal to 360 degrees
Wherein (x, y) is the coordinate of one point on the involute tooth, R is the radius of the rope winding shaft, and t is the angle of the involute unfolding. Above setting is equipped with involute arch on the one side that is close to the rope winding shaft through the rim plate for the rope can carry out the face contact with involute arch when the motion, prevents because the point contact leads to the too quick problem of slip, simultaneously because involute arch is along the involute direction setting of rope winding shaft, thereby makes the rope winding shaft break away from rope winding shaft direction in advance that produces when the motion break away from force F, because involute arch is along the involute direction setting of rope winding shaft, thereby in the motion process, rope and involute arch contact involute arch can produce a force F' with break away from the opposite direction of force for the rope, thereby prevent that the rope from breaking away from the rope winding shaft, structural stability is good.
The shell 1 is provided with avoidance openings 13 on two sides of the pendulum part 5 in the swinging direction, and the avoidance openings provide a movable space for the pendulum part to swing.
The utility model also provides a working method of the pendulum bob descent control device, wherein the pendulum bob descent control device falls to drive the rope winding wheel and the first gear to rotate, the first gear drives the second gear in the transmission device to move, the transmission wheel is driven to rotate by the second rotation shaft, the transmission wheel rotates to drive the transmission cylinder to slide in the guide groove, the transmission cylinder drives the movable rod to move on the guide rod along the height direction of the guide rod, the connecting rod is driven to move, and the pendulum bob is driven to swing around the rotation connection point of the pendulum bob and the shell.
The device is characterized in that when a user falls down along the rope by using the descent control device body, the rope enters the rope winding wheel from one end of the shell, the descent control device body falls down along the rope to drive the rope winding wheel and the first gear to rotate, the first gear drives the second gear in the transmission device to move, the transmission wheel rotates under the drive of the second rotation shaft, the transmission wheel rotates to drive the transmission cylinder to slide in the guide groove, the transmission cylinder drives the movable rod to move on the guide rod along the height direction of the guide rod, the connecting rod is connected with the guide rod to enable the connecting rod to move up and down, one end of the pendulum part is fixed on the shell, the pendulum part is driven to reciprocate on the inner wall of the shell under the motion of the connecting rod to do work continuously changing the motion direction, if the weight of the user is heavier, the faster the rotation speed of the rope winding wheel is, the faster the rotation speed of the first gear is, the faster the sliding speed of the movable rod on the guide rod is, the swinging speed of the pendulum part is higher, and part of gravitational potential energy is counteracted by acting through the pendulum part, so that the descending speed of the descent control device body cannot be too fast.
Claims (9)
1. The utility model provides a pendulum slowly falls ware, includes slowly falls ware body, its characterized in that: the descent control device body comprises a shell, a rope winding wheel used for winding a rope, a first gear, a first rotating shaft, a transmission device and a pendulum part, wherein the first rotating shaft is rotationally connected in the shell;
the transmission device comprises a second gear, a second rotating shaft and a transmission mechanism, wherein the second rotating shaft is rotationally connected with the shell, the second gear is arranged on the second rotating shaft, the transmission mechanism comprises a guide rod, a transmission wheel and a movable rod, the guide rod is arranged on one side of the transmission wheel and fixedly connected with the inner wall of the shell, the second gear is meshed with the first gear, the transmission wheel is arranged on the second rotating shaft and is positioned on one side of the second gear, the transmission wheel is fixedly connected with a transmission cylinder on one side far away from the second gear, a guide groove is formed in the middle of the movable rod, the transmission cylinder on the transmission wheel penetrates through and is slidingly connected in the guide groove of the movable rod, the connecting rod is rotationally connected with the movable rod, and the transmission wheel rotates to drive the transmission cylinder to slide in the guide groove so that the movable rod moves on the guide rod to drive the pendulum part to swing; the transmission mechanism is provided with two groups; the pendulum parts are provided with two pendulum parts.
2. A pendulum descent control device according to claim 1, wherein: the movable rod is provided with a lantern ring at one end close to the guide rod, and the movable rod is sleeved on the guide rod through the lantern ring.
3. A pendulum descent control device according to claim 1, wherein: the guide rod is provided with more than one ball along the height direction of the guide rod, the guide rod is also provided with a corresponding ball hole site, the ball protrudes out of the ball hole site, and the movable rod is provided with a sliding groove matched with the ball at one end close to the lantern ring.
4. A pendulum descent control device according to claim 1, wherein: a third gear and a third rotating shaft are further arranged between the first gear and the second gear, a mounting plate is arranged between the second gear and the driving wheel, and the third gear is rotatably connected to the mounting plate through the third rotating shaft.
5. A pendulum descent control device according to claim 1, wherein: the guide rods are provided with two guide rods; the two ends of the movable rod are respectively provided with a lantern ring, and the movable rod is sleeved on the guide rods at the two ends through the lantern rings at the two ends.
6. A pendulum descent control device according to claim 1, wherein: the shell is provided with a rope inlet at one side of the rope winding wheel; the shell is provided with a rope outlet at the other side of the rope winding wheel, and the shell is provided with a guide sleeve at the rope inlet and the rope outlet.
7. A pendulum descent control device according to claim 1, wherein: the rope winding wheel is provided with two wheel discs in total, a rope winding shaft is arranged between the wheel discs, the rope winding shaft is fixedly connected with the circle centers of the wheel discs on two sides, involute bulges are arranged on one side, close to the rope winding shaft, of the wheel discs, the involute bulges extend from the circle centers of the wheel discs to the edges of the wheel discs and are arranged along the involute direction of the rope winding wheel, and the tangential direction of the intersection of the involute bulges and the rope is perpendicular to the tangential direction of the intersection of the involute bulges and the rope.
8. A pendulum descent control device according to claim 1, wherein: the shell is provided with avoidance openings at two sides of the pendulum part in the swinging direction.
9. The method of operating a pendulum descent control device according to claim 1, wherein: the pendulum bob slowly-descending device falls to drive the rope winding wheel and the first gear to rotate, the first gear drives the second gear in the transmission device to move, the transmission wheel is driven to rotate by the second rotation shaft, the transmission wheel rotates to drive the transmission cylinder to slide in the guide groove, the transmission cylinder drives the movable rod to move on the guide rod along the height direction of the guide rod, the connecting rod is driven to move, and the pendulum bob is driven to swing around the rotation connection point of the pendulum bob and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192076.0A CN112138292B (en) | 2020-10-30 | 2020-10-30 | Pendulum descent control device and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192076.0A CN112138292B (en) | 2020-10-30 | 2020-10-30 | Pendulum descent control device and working method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112138292A CN112138292A (en) | 2020-12-29 |
| CN112138292B true CN112138292B (en) | 2023-11-07 |
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ID=73953777
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011192076.0A Active CN112138292B (en) | 2020-10-30 | 2020-10-30 | Pendulum descent control device and working method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064659U (en) * | 1989-12-26 | 1990-10-31 | 苏秉芝 | Lifesaving slow landing device for high altitude |
| CN201735079U (en) * | 2010-08-03 | 2011-02-09 | 李灏楠 | Air pressure damping type multifunctional high-rise escape device |
| EP2316532A2 (en) * | 2009-11-02 | 2011-05-04 | SKYLOTEC GmbH | Abseiling device with wind function |
| CN202146528U (en) * | 2011-05-31 | 2012-02-22 | 毕子熙 | Fire hazard and earthquake escape curtain box |
| CN212327218U (en) * | 2020-10-30 | 2021-01-12 | 亿安居智能科技(广东)有限公司 | Pendulum descent control device |
-
2020
- 2020-10-30 CN CN202011192076.0A patent/CN112138292B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064659U (en) * | 1989-12-26 | 1990-10-31 | 苏秉芝 | Lifesaving slow landing device for high altitude |
| EP2316532A2 (en) * | 2009-11-02 | 2011-05-04 | SKYLOTEC GmbH | Abseiling device with wind function |
| CN201735079U (en) * | 2010-08-03 | 2011-02-09 | 李灏楠 | Air pressure damping type multifunctional high-rise escape device |
| CN202146528U (en) * | 2011-05-31 | 2012-02-22 | 毕子熙 | Fire hazard and earthquake escape curtain box |
| CN212327218U (en) * | 2020-10-30 | 2021-01-12 | 亿安居智能科技(广东)有限公司 | Pendulum descent control device |
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| Publication number | Publication date |
|---|---|
| CN112138292A (en) | 2020-12-29 |
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