A high-altitude fall protection net deployment device based on the instantaneous release of compressed gas

By designing a high-altitude fall protection net deployment device that instantly releases compressed gas, the device utilizes high-pressure gas to drive the deployment of the fall protection net, solving the problems of falling objects from heights and casualties in fires, and achieving rapid and effective escape and rescue.

CN117188801BActive Publication Date: 2026-01-30THE SECOND CONSTR OF CHINA CONSTR EIGHTH ENG DIV
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Patent Information

Application Number
CN202311160952.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-11
Publication Date
2026-01-30
Estimated Expiration
2043-09-11

AI Technical Summary

Technical Problem

Existing technologies cannot effectively prevent falling objects from heights at the source. Fire escape routes are limited and rescue equipment is slow to deploy. Conventional rescue mats are not ideal and cannot effectively reduce the risk of falling objects from heights and casualties in fires.

Method used

Design a high-altitude fall protection net deployment device based on the instantaneous release of compressed gas. Utilize a high-pressure gas tank, motor, gear system, and flexible gas conduit to quickly deploy the fall protection net to capture falling objects or provide an escape route.

Benefits of technology

In the event of falling objects or fire, quickly deploying fall protection nets can reduce the risk of casualties, increase the success rate of escape, and avoid the inadequacy of conventional rescue equipment.

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Abstract

This invention relates to the field of high-altitude fall protection net technology, specifically a high-altitude fall protection net deployment device based on the instantaneous release of compressed gas. The device includes: a mounting plate, a storage frame, and a fall protection net. A high-pressure gas tank is fixedly mounted on the upper end of the mounting plate. One end of the mounting plate is mounted on a wall via a fixing plate. A movable plate is slidably connected to one side of the upper end of the mounting plate. A motor is mounted on the movable plate, and a rotating rod is fixedly mounted on the output end of the motor via a coupling. A gear is fixedly mounted on the outer wall of the rotating rod. One end of the storage frame is mounted on the mounting plate, and the other end is mounted on the wall. A shaft is rotatably connected inside the storage frame, and a baffle is fixedly mounted thereon. This device can prevent falls from heights by setting fall protection nets of different heights according to the building height. It also compensates for the shortcomings of fall protection cameras, which are only auxiliary for post-accident accountability and cannot reduce the harm of falling objects from heights. It avoids risks during the fall of objects from heights.
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Description

Technical Field

[0001] This invention relates to the field of high-altitude fall protection net technology, specifically a high-altitude fall protection net deployment device based on the instantaneous release of compressed gas. Background Technology

[0002] With the development of the times, buildings are now taller and larger than before, but this also brings the risk of objects falling from heights. Although there are fall prevention cameras, their role is only to assist in post-accident liability investigation and cannot reduce the harm caused by falling objects. We cannot use effective means to prevent falling objects from the source, but we can use certain methods to mitigate the risk during the falling process.

[0003] Another situation is that fires are frequent in residential buildings nowadays, and people have limited escape routes. The survival rate of jumping out of windows is extremely low. If there were an escape net that could be set up in a short time after a fire, it could greatly improve the survival rate of people affected by the fire.

[0004] Another situation is when someone is contemplating suicide by jumping from a building. The speed at which a rescue mat can be set up will largely determine whether a rescue can be successful. However, it takes a long time for the fire department to arrive and set up the rescue mat. In addition, the rescue mat is of little use on higher floors. Furthermore, the setting up of the rescue mat is also limited by the site. If there are bushes on site, the rescue mat cannot be set up. Summary of the Invention

[0005] The purpose of this invention is to provide a high-altitude fall protection net deployment device based on the instantaneous release of compressed gas, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-altitude fall protection net deployment device based on the instantaneous release of compressed gas, comprising: an installation plate, a storage frame and a fall protection net, wherein a high-pressure gas tank is fixedly installed on the upper end of the installation plate, one end of the installation plate is installed on the wall through a fixing plate, a movable plate is slidably connected to one side of the upper end of the installation plate, a motor is installed on the movable plate, a rotating rod is fixedly installed on the output end of the motor through a coupling, and a gear is fixedly installed on the outer wall of the rotating rod;

[0007] One end of the storage frame is mounted on the mounting plate, and the other end is mounted on the wall. Inside the storage frame, a shaft is rotatably connected and a baffle is fixedly installed. The shaft is wound with a recovery rope through a winding wheel. The baffle is located outside the winding wheel. One end of the recovery rope is fixed to the winding wheel, and the other end passes evenly through both sides of the fall protection net and is fixedly connected to the outermost side wall of the fall protection net. Pull ropes are installed on both the left and right sides of the outer end of the fall protection net. The other end of the pull ropes is fixed to the wall through a fixing ring. A flexible gas conduit is fixedly installed on the outer side wall of the fall protection net. The flexible gas conduit is connected to a high-pressure gas tank through a high-pressure gas pipe.

[0008] Preferably, a support frame is fixedly installed on the outer wall of both the front and rear ends of the high-pressure gas tank. The lower end of the support frame is fixed to the upper end of the mounting plate by bolts. A fixing plate is fixedly installed on one side wall of the mounting plate and is perpendicular to the mounting plate. Several reinforcing ribs are evenly fixedly installed at the connection between the mounting plate and the fixing plate. The fixing plate is fixed to the wall by pre-embedded bolts.

[0009] Preferably, a slide rail is provided on the upper side wall of the mounting plate. The slide rail is convex. The movable plate is located at the upper end of the slide rail, and a slider is fixedly installed on the lower side wall of the movable plate. The slider is convex and slides into the slide rail.

[0010] Preferably, a positioning plate and a shielding box are fixedly installed on the upper side wall of the mounting plate, the positioning plate is located inside the slide rail, the shielding box is located on the upper outer side of the slide rail, an electric push rod is fixedly installed on one side wall of the positioning plate, and the other end of the electric push rod is fixedly installed on the moving plate.

[0011] Preferably, a circular hole is provided on one side wall of the shielding box, and a bearing is fixedly installed on the other side wall. One end of the rotating rod slides through the circular hole, and a gear is located inside the shielding box.

[0012] Preferably, the shaft is located inside the storage frame, and several support rods are evenly rotatably connected to the outer wall of the shaft. The lower end of the support rod is fixedly installed on the inner side wall of the storage frame. Rewinding wheels are fixedly installed on the outer walls of both the left and right ends of the shaft. One end of the shaft passes through the inner wall of the bearing on the shielding box and is fixedly installed with a gear.

[0013] Preferably, baffles are fixedly installed on both the left and right sides of the inner end of the storage frame. The baffles are located directly in front of the winding wheel, and through holes are provided on the side walls of the baffles.

[0014] Preferably, the flexible gas conduit is U-shaped and fixedly installed on the three side walls of the outer end of the fall arrest net. One end of the high-pressure gas pipe is fixedly connected to the high-pressure gas tank, and the other end passes through the storage frame and is fixedly connected to one end of the flexible gas conduit.

[0015] Preferably, the outer end of the fall protection net is equipped with an elastic support strip. The left and right ends of the support strip are located outside the storage frame. Both ends of the support strip are fixedly connected to one end of the pull rope, and the other end of the pull rope is fixedly connected to a fixing ring. The fixing ring is fixed to the outer wall of the wall by a metal plate and pre-embedded bolts.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This device can prevent falls from heights by setting up fall protection nets at different heights according to the building's height. It can also make up for the shortcomings of fall protection cameras, which are only an aid to post-accident accountability and cannot reduce the harm of falling objects from heights. It avoids risks during the process of falling objects from heights.

[0018] This device can be used to quickly deploy an escape net after a fire, greatly improving the survival rate of fire victims. It can also be used to quickly deploy a fall protection net when someone is contemplating suicide by jumping from a building, and can also prevent conventional rescue air cushions from being ineffective due to the height of the building. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention installed on a wall;

[0020] Figure 2 This is a left view of the high-pressure air pipe of the present invention mounted on the mounting plate;

[0021] Figure 3 This is a right view of the high-pressure air pipe of the present invention mounted on the mounting plate;

[0022] Figure 4 For the present invention Figure 3 Enlarged view of the structure of region A in the middle;

[0023] Figure 5 This is a top view of the anti-fall net of the present invention when it is deployed;

[0024] Figure 6 For the present invention Figure 5 Enlarged view of the structure of region B in the middle.

[0025] In the diagram: 1. Mounting plate; 2. Fixing plate one; 3. Reinforcing rib; 4. High-pressure gas tank; 5. Support frame; 6. Controller; 7. High-pressure gas pipe; 8. Slide rail; 9. Moving plate; 10. Slider; 11. Motor; 12. Rotating rod; 13. Gear one; 14. Positioning plate; 15. Electric push rod; 16. Shielding box; 17. Round hole; 18. Storage frame; 19. Fixing plate two; 20. Wall; 21. Fixing ring; 22. Pull rope; 23. Shaft; 24. Rewinding wheel; 25. Support rod; 26. Baffle; 27. Fall protection net; 28. Flexible gas conduit; 29. ​​Recovery rope; 30. Support bar; 31. Gear two. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0030] Please see Figures 1 to 6This invention provides a technical solution: a high-altitude fall protection net deployment device based on the instantaneous release of compressed gas, comprising: an installation plate 1, a storage frame 18, and a fall protection net 27. One end of the installation plate 1 is installed on a wall 20 via a fixing plate 2. The wall 20 is drilled and pre-embedded with bolts according to the required position for fixing the installation plate 1. The fixing plate 2 is fixedly installed on the side wall of one end of the installation plate 1 and is perpendicular to the installation plate 1. Several reinforcing ribs 3 are evenly fixedly installed at the connection between the installation plate 1 and the fixing plate 2. The fixing plate 2 is fixed to the wall 20 by pre-embedded bolts. Bolt holes are opened on the side wall of the fixing plate 2. One end of the pre-embedded bolt passes through the bolt hole and is threadedly connected to a nut, thereby fixing the installation plate 1 to the wall 20.

[0031] A high-pressure gas tank 4 is fixedly installed on the upper end of the mounting plate 1. Support frames 5 are fixedly installed on the outer walls of the front and rear ends of the high-pressure gas tank 4. The lower end of the support frame 5 is fixed to the upper end of the mounting plate 1 by bolts, thereby fixing the high-pressure gas tank 4 to the upper end of the mounting plate 1. A controller 6 is fixedly installed on the outer wall of one end of the high-pressure gas tank 4. The controller 6 is electrically connected to the motor 11, the electric push rod 15, the electric valve, and the external falling object detection camera. When the falling object camera detects a falling object, it sends a signal to the controller 6, and the controller 6 opens the electric valve at the high-pressure gas pipe 7.

[0032] A movable plate 9 is slidably connected to one side of the upper end of the mounting plate 1. A slide rail 8 is provided on the side wall of the upper end of the mounting plate 1. The slide rail 8 is convex. The movable plate 9 is located at the upper end of the slide rail 8. A slider 10 is fixedly installed on the lower side wall of the movable plate 9. The slider 10 is convex. The slider 10 is slidably inserted into the slide rail 8. By pushing the movable plate 9, the slider 10 moves in the slide rail 8, thereby moving the movable plate 9 on the mounting plate 1. A motor 11 is installed on the movable plate 9. A rotating rod 12 is fixedly installed at the output end of the motor 11 through a coupling. A gear 13 is fixedly installed on the outer wall of the rotating rod 12. The motor 11, the rotating rod 12, and the gear 13 move at the upper end of the mounting plate 1 through the movable plate 9.

[0033] A positioning plate 14 and a shielding box 16 are fixedly installed on the upper side wall of the mounting plate 1. The positioning plate 14 is located inside the slide rail 8, and the shielding box 16 is located on the upper outer side of the slide rail 8. An electric push rod 15 is fixedly installed on one side wall of the positioning plate 14, and the other end of the electric push rod 15 is fixedly installed on the moving plate 9. A round hole 17 is opened on one side wall of the shielding box 16, and a bearing is fixedly installed on the other side wall. One end of the rotating rod 12 slides through the round hole 17. Gear 13 is located inside the shielding box 16. When the electric push rod 15 is activated, the electric push rod 15 can push the moving plate 9 to move at the upper end of the mounting plate 1, thereby allowing gear 13 to move inside the shielding box 16. When gear 13 moves to the far right, the outer wall of gear 13 and the outer wall of gear 2 31 mesh and connect. When gear 13 moves to the far left, gear 13 and gear 2 31 separate.

[0034] One end of the storage frame 18 is installed on the mounting plate 1, and the other end is installed on the wall 20. A fixing plate 29 is fixedly installed on the rear side of the other end of the storage frame 18. Bolt holes are opened on the four side walls of the fixing plate 29. The fixing plate 29 is fixed to the wall 20 by passing through the bolt holes and connecting with the nuts through the pre-embedded bolts set on the wall 20, thereby fixing the storage frame 18.

[0035] A shaft 23 is rotatably connected inside the storage frame 18. The shaft 23 is located inside the storage frame 18. Several support rods 25 are evenly rotatably connected to the outer wall of the shaft 23. The lower end of the support rod 25 is fixedly installed on the inner side wall of the storage frame 18. Rewinding wheels 24 are fixedly installed on the outer walls of both the left and right ends of the shaft 23. One end of the shaft 23 passes through the inner wall of the bearing on the shield box 16 and is fixedly installed with gear 2 31. When the fall protection net 27 is stored in the storage frame 18, the output end of the electric push rod 15 is in a retracted state, and gear 1 13 and gear 2 31 do not contact each other.

[0036] The outer wall of the shaft 23 is fixedly connected to the inner wall of the bearing. A recovery rope 29 is wound around the shaft 23 via a winding reel 24. Baffles 26 are fixedly installed on both the left and right sides of the inner end of the storage frame 18. The baffles 26 are located directly in front of the winding reel 24. Through holes are provided on the side walls of the baffles 26. One end of the recovery rope 29 is fixed to the winding reel 24, and the other end passes through the through hole in the baffle 26, then evenly passes through both sides of the fall arrest net 27 and is fixedly connected to the outermost side wall of the fall arrest net 27. A flexible gas conduit 28 is fixedly installed on the outer side wall of the fall arrest net 27. The tube 28 is U-shaped and is fixedly installed on the three side walls of the outer end of the fall protection net 27. An exhaust valve is provided on the outer wall of one end of the flexible gas conduit 28. One end of the high-pressure gas pipe 7 is fixedly connected to the high-pressure gas tank 4, and the other end passes through the storage frame 18 and is fixedly connected to one end of the flexible gas conduit 28. An electric valve is provided at the end of the high-pressure gas pipe 7 near the high-pressure gas tank 4. By opening the electric valve, the gas in the high-pressure gas tank 4 is instantly introduced into the flexible gas conduit 28 and continuously supplied with gas to the flexible gas conduit 28, thus unfolding the fall protection net 27 in the storage frame 18 and keeping it in the unfolded state.

[0037] Pull ropes 22 are installed on both the left and right sides of the outer end of the fall protection net 27. The other end of the pull rope 22 is fixed to the wall 20 by a fixing ring 21. An elastic support strip 30 is installed on the outer end of the fall protection net 27. The left and right ends of the support strip 30 are located outside the storage frame 18. When the fall protection net 27 is retracted, the left and right ends of the support strip 30 are located outside the storage frame 18, and the pull rope 22 is in maximum contact with the outer wall of the wall 20. The left and right ends of the support strip 30 are also aligned with one end of the pull rope 22. The other end of the pull rope 22 is fixedly connected to the fixing ring 21. The fixing ring 21 is fixed to the outer wall of the wall 20 by a metal plate and pre-embedded bolts. The pull rope 22 and the recovery rope 29 are both made of Kevlar material. When the fall protection net 27 is unfolded, since the length of the pull rope 22 remains unchanged, the pull rope 22 pulls the outer end of the fall protection net 27 upward, applying a supporting force to the fall protection net 27, so that the outer end of the fall protection net 27 is higher than the inner end, preventing people or objects on the fall protection net 27 from rolling down.

[0038] When a fire occurs, a trigger signal is sent to controller 6 to open the fall protection net 27 installed on the side of the window of the room where the fire is taking place, so as to catch escapers or other falling objects; when someone attempts suicide, a trigger signal is sent to open the fall protection net 27 on the side of the person attempting suicide, so as to facilitate rescue operations.

[0039] When this device is in operation, if the high-altitude falling object camera detects a falling object, it sends a signal to the controller 6. The controller 6 then opens the electric valve at the high-pressure gas pipe 7, and the gas from the high-pressure gas tank 4 instantly enters the flexible gas conduit 28, unfolding the fall protection net 27 inside the storage frame 18. The pull rope 22 pulls the outer end of the fall protection net 27 upward, applying a supporting force to the net, ensuring that the outer end of the net 27 is higher than the inner end. Once the danger signal is cleared, the electric valve on the high-pressure gas pipe 7 is closed, and then the flexible gas conduit 28 is opened... The exhaust valve opens to release gas. The controller 6 controls the output end of the electric push rod 15 to extend, moving gear 13 inside the shield box 16 and contacting gear 21. Then, the controller 6 controls the motor 11 to drive gear 13 to rotate gear 21 and shaft 23. The winding wheel 24 winds up the recovery rope 29, which pulls the fall protection net 27 into the storage frame 18. After the fall protection net 27 is stored, the controller 6 controls the electric push rod 15 to reset the motor 11 and gear 13.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high altitude anti-falling net laying device based on compressed gas flash, comprising: The utility model provides an installation plate (1), receive frame (18) and anti -fall net (27), and the upper end fixed mounting of installation plate (1) has high pressure gas tank (4), it is characterized by: one end of installation plate (1) is installed on wall body (20) through fixed plate one (2), and the upper end one side of installation plate (1) is slidably connected with moving plate (9), and motor (11) is installed on moving plate (9), and the output of motor (11) is fixedly installed with rotating rod (12) through coupling, and the outer wall of rotating rod (12) is fixedly installed with gear one (13); One end of receive frame (18) is installed on installation plate (1), and the other end is installed on wall body (20), and shaft rod (23) is rotatably connected in receive frame (18) and fixedly installed with baffle (26), and shaft rod (23) is wound with recovery rope (29) through winding wheel (24), and baffle (26) is located on the outside of winding wheel (24), and one end of recovery rope (29) is fixed on winding wheel (24), and the other end is evenly passed through from the two sides of anti -fall net (27) and is fixedly connected with the outer end side wall of anti -fall net (27), and the outer end left and right sides of anti -fall net (27) are all installed with pull rope (22), and the other end of pull rope (22) is fixed on wall body (20) through fixed ring (21), and the outer end side wall of anti -fall net (27) is fixedly installed with flexible gas guide pipe (28), and flexible gas guide pipe (28) is connected with high pressure gas tank (4) through high pressure gas pipe (7); The upper end one side of installation plate (1) is provided with slide rail (8), and slide rail (8) is convex, and moving plate (9) is located on the upper end of slide rail (8), and the lower end side wall of moving plate (9) is fixedly installed with slide block (10), and slide block (10) is convex, and slide block (10) is slidably inserted into slide rail (8), and the upper end side wall of installation plate (1) is fixedly installed with positioning plate (14) and shielding box (16) respectively, and positioning plate (14) is located on the inside of slide rail (8), and shielding box (16) is located on the upper end outside of slide rail (8), and the one end side wall of positioning plate (14) is fixedly installed with electric push rod (15), and the other end of electric push rod (15) is fixedly installed on moving plate (9); The left and right ends of shaft rod (23) are all fixedly installed with winding wheel (24), and one end of shaft rod (23) passes through the bearing inner wall on shielding box (16) and is fixedly installed with gear two (31), and the output of electric push rod (15) is controlled through controller (6), and gear one (13) moves in shielding box (16) and contacts with gear two (31), and then the rotation of gear one (13) is controlled motor (11) drives gear two (31) and shaft rod (23), and winding wheel (24) is used for winding recovery rope (29), and recovery rope (29) pulls anti -fall net (27) into receive frame (18), and after the storage of anti -fall net (27) is completed, controller (6) controls electric push rod (15) and resets motor (11) and gear one (13).

2. The high-altitude anti-falling net laying device based on compressed gas instant release according to claim 1, characterized in that: The outer wall of the front and rear ends of the high-pressure gas tank (4) is fixedly provided with a support frame (5), the lower end of the support frame (5) is fixed on the upper end of the mounting plate (1) through bolts, the fixed plate (2) is fixedly installed on the side wall of one end of the mounting plate (1) and is arranged perpendicularly to the mounting plate (1), a plurality of reinforcing ribs (3) are uniformly fixedly installed at the connection between the mounting plate (1) and the fixed plate (2), and the fixed plate (2) is fixed on the wall body (20) through embedded bolts.

3. The high-altitude anti-falling net laying device based on compressed gas instant release according to claim 1, characterized in that: The one end side wall of the shielding box (16) is provided with a circular hole (17), the other end side wall is fixedly provided with a bearing, one end of the rotating rod (12) slides through the circular hole (17), and the gear (13) is located in the shielding box (16).

4. The high altitude anti-falling net laying device based on compressed gas impulse according to claim 1, characterized in that: The outer wall of the shaft rod (23) is uniformly rotatably connected with a plurality of support rods (25), and the lower end of the support rod (25) is fixedly installed on the inner end side wall of the storage frame (18).

5. The high altitude anti-falling net laying device based on compressed gas impulse according to claim 1, characterized in that: The inner end left and right sides of the storage frame (18) are fixedly provided with baffle plates (26), the baffle plates (26) are located in front of the winding wheel (24), and the side wall of the baffle plate (26) is provided with a through hole.

6. The high altitude anti-falling net laying device based on compressed gas impulse according to claim 1, characterized in that: The flexible gas conduit (28) is U-shaped, is fixedly installed on the side walls of three sides of the outer end of the anti-falling net (27), one end of the high-pressure gas pipe (7) is fixedly connected with the high-pressure gas tank (4), and the other end is fixedly connected with one end of the flexible gas conduit (28) through the storage frame (18).

7. The high altitude anti-falling net laying device based on compressed gas instant release according to claim 1, characterized in that: The outer end of the anti-falling net (27) is provided with an elastic support strip (30), the left and right ends of the support strip (30) are located outside the storage frame (18), the left and right ends of the support strip (30) are fixedly connected with one end of the pull rope (22), the other end of the pull rope (22) is fixedly connected with the fixed ring (21), and the fixed ring (21) is fixed on the outer wall of the wall body (20) through the metal plate and the embedded bolt.

Citation Information

Patent Citations

  • High building rescue ware

    CN204972732U

  • Cleaning device for centrifugal machine

    CN213996318U

  • Safty net for falling

    KR101622664B1