Anti-falling device for high position
By combining a support frame, safety rope, impact sleeve, and buffer sleeve, along with Velcro and energy absorption devices, the problem of impact and sway injuries during falls in airport warehouse fall arrest systems has been solved, achieving a highly efficient protective effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-17
AI Technical Summary
Existing fall arrestors in airport warehouses are prone to impacting supports or cargo due to inertial swing when workers fall, posing a risk of injury. Furthermore, they cannot effectively absorb impact when suspended in mid-air.
It adopts a combination structure of bracket, safety rope, impact sleeve and buffer sleeve. The impact sleeve and buffer sleeve made of porous polyurethane elastomer material absorb the impact force, and the protective gear connected by Velcro reduces the swing angle. Combined with speed difference fall arrestor and energy absorber, it prevents further fall.
It effectively absorbs the impact force when workers fall, reduces impact injuries and sway injuries, ensures personnel safety, and is suitable for working at heights.
Smart Images
Figure CN223995271U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airport equipment technology, specifically to a fall arrest device for use at heights. Background Technology
[0002] Airports are not only used for the movement of people, but also for cargo transportation. For example, international cargo is usually transported by sea or air. Therefore, some airports also set up warehouses for temporary storage of goods. Air cargo transportation is divided into high-bed, medium-bed, and low-bed. High-bed refers to the high loading height, so workers need to climb up the high-bed using a mobile ladder and stand on the high-bed to stack the goods. In order to prevent people from falling, fall protection devices are needed to protect the workers.
[0003] Existing fall arrest devices for airport warehouses typically consist of a support frame with safety ropes, protective gear, and other components. While these devices can effectively prevent workers from falling to the ground, workers are suspended in mid-air when they fall, and due to factors such as inertia, they are prone to swaying. Small swaying has no effect, but if the swaying is large, they are likely to collide with the support frame or cargo, resulting in injury to the worker. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a fall protection device for heights, so as to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fall arrest device for heights, comprising a bracket and a protective garment, wherein safety ropes are connected to both sides of the bottom of the bracket, anti-collision sleeves are connected to both sides of the outer surface of the bracket, and a buffer sleeve is connected to the outer surface of the anti-collision sleeves, and a second Velcro is connected to the outer surface of the buffer sleeves, and a first Velcro is connected to the outer surface and back of the protective garments.
[0006] By adopting the above technical solution, if the worker swings, they will swing towards the anti-collision sleeve and the buffer sleeve, causing them to collide with them. At this time, the buffer sleeve first absorbs the impact force of the worker's impact, thus preventing injury. The buffer sleeve will deform and come into contact with the anti-collision sleeve, further absorbing the impact force through secondary energy absorption, thus effectively preventing injury. At the same time, by setting the first Velcro on the protective gear except for the areas with buckles, adjustment buckles, and installation buckles, and by allowing the worker to see and wear some arm and leg guards with the first Velcro wrapped around their surface, when the worker collides with the buffer sleeve, the multiple first Velcro on the worker's body can stick to the second Velcro on the buffer sleeve. When the worker swings back, the buffer sleeve can hold the worker back, or the first and second Velcro can separate and absorb energy, reducing the swing force and thus reducing the swing angle, effectively reducing the occurrence of injuries caused by swinging back.
[0007] Furthermore, the anti-collision sleeve has an "H" shaped cross-section, and there is a gap between the outer surface of the anti-collision sleeve and the buffer sleeve.
[0008] By adopting the above technical solution, the buffer sleeve first absorbs the impact force of the worker's impact, thereby preventing the worker from being injured. The buffer sleeve will deform and come into contact with the anti-collision sleeve, and the anti-collision sleeve will absorb the impact force again through secondary energy absorption, thereby effectively preventing the worker from being injured.
[0009] Furthermore, both the anti-collision sleeve and the buffer sleeve are made of porous polyurethane elastomer material.
[0010] By adopting the above technical solution, the buffering principle of porous polyurethane elastomer is to absorb energy through the synergistic effect of material deformation, viscoelastic dissipation and airflow resistance, thereby effectively reducing the harm to workers.
[0011] Furthermore, the safety rope has a Y-shaped longitudinal section, and the support has an n-shaped longitudinal section.
[0012] By adopting the above technical solution, the staff works in front of the support. The lateral length of the support in actual use depends on the size of the high plate and must be greater than the lateral length of the high plate so that the staff can swing towards the anti-collision sleeve and buffer sleeve for protection when falling from the side and rear of the high plate. The shape of the support makes the middle of the support hollow, and the shape of the safety rope makes the safety rope located in the hollow area of the support, reducing the possibility of the staff hitting the support.
[0013] Furthermore, the safety rope is made of polyester fiber or aramid fiber.
[0014] By adopting the above technical solutions, safety ropes made of polyester fiber or aramid have excellent strength and can effectively prevent the safety rope from breaking due to the impact force when workers fall.
[0015] Furthermore, a speed difference fall arrestor is sleeved on the outside of the safety rope, and an energy absorber is connected to one side of the speed difference fall arrestor through an intermediate rope. One end of the energy absorber is connected to a protective gear.
[0016] By adopting the above technical solution, when a worker falls, the speed difference fall arrestor will prevent the worker from continuing to fall and avoid injury when falling to the ground. In addition, the energy absorber, together with the protective gear, will absorb the impact force of the worker's fall.
[0017] Furthermore, the protective gear is a five-point safety harness.
[0018] By adopting the above technical solutions, the impact force can be effectively dispersed and the burden on the upper body can be reduced, making it an ideal choice for operations with a risk of falling from height.
[0019] Furthermore, two safety ropes are provided, and the speed difference fall arrestor is detachably connected to the safety rope.
[0020] By adopting the above technical solution and setting up two safety ropes, it is convenient for one worker to stack a batch of high-platform goods in front of the support, and for another worker to stack another batch of high-platform goods behind the support.
[0021] Furthermore, the cross-section of the buffer sleeve is racetrack-shaped.
[0022] By adopting the above technical solution, the shape of the buffer sleeve, combined with the anti-collision sleeve, can form a double-sided, double-layer buffer protection, allowing workers to stack goods both in front of and behind the support.
[0023] In summary, the present invention has the following main advantages:
[0024] 1. This utility model, through the design of a support frame, safety rope, anti-collision sleeve, and buffer sleeve, allows workers to stand in front of the support frame. When a worker falls, they will swing towards the anti-collision sleeve and buffer sleeve. The shape of the support frame is hollow in the middle, and the shape of the safety rope is such that the safety rope is located in the hollow area of the support frame, reducing the possibility of the worker colliding with the support frame. Instead, the worker will collide with the anti-collision sleeve and buffer sleeve. At this time, the buffer sleeve first absorbs the impact force of the worker's impact, thus preventing the worker from being injured. The buffer sleeve will also deform and come into contact with the anti-collision sleeve, further absorbing the impact force through the secondary energy absorption of the anti-collision sleeve, thus effectively preventing the worker from being injured. It effectively absorbs the impact force of the worker's swing, thus preventing injury, and most of the kinetic energy is absorbed, reducing the swing force.
[0025] 2. This utility model, through the setting of a first Velcro and a second Velcro, by placing the first Velcro on the protective gear except for the areas of components such as buckles, adjustment buckles, and mounting buckles, and by having workers wear arm and leg guards with the first Velcro wrapped around their surface, allows multiple first Velcros on the worker's body to stick to the second Velcro on the cushioning sleeve when the worker collides with the cushioning sleeve. When the worker swings back, the first Velcro can hold the worker in place, or the first and second Velcro can separate to absorb energy, reducing the force of the worker's swing and thus reducing the angle of the swing, effectively reducing the occurrence of injuries caused by the swing; further reducing the force of the swing and reducing injury. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of this utility model;
[0027] Figure 2 For the present utility model Figure 1 Enlarged view of the structure at point A in the image;
[0028] Figure 3 This is a schematic diagram of the support structure of this utility model;
[0029] Figure 4 This is a schematic diagram of the anti-collision sleeve structure of this utility model.
[0030] In the diagram: 1. Support frame; 2. Safety rope; 3. Differential fall arrestor; 4. Intermediate rope; 5. Energy absorber; 6. Protective gear; 7. First Velcro strap; 8. Impact sleeve; 9. Buffer sleeve; 10. Second Velcro strap. Detailed Implementation
[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0032] The embodiments of this utility model will be described below based on its overall structure.
[0033] Example 1:
[0034] Use fall protection devices at heights, such as Figures 1-4As shown, the device includes a support frame 1 and a protective gear 6. The support frame 1 has an "n"-shaped longitudinal section. Safety ropes 2 are connected to both sides of the bottom of the support frame 1. The safety ropes 2 are made of polyester fiber or aramid and have a "Y"-shaped longitudinal section. Workers stand in front of the support frame 1. The lateral length of the support frame 1 in actual use depends on the size of the high platform and must be greater than the lateral length of the high platform so that workers can swing towards the anti-collision sleeves 8 and buffer sleeves 9 for protection when falling from the side or rear of the high platform. The shape of the support frame 1 is hollow in the middle, and the shape of the safety rope 2 is such that the safety rope 2 is located in the hollow area of the support frame 1, reducing the possibility of workers hitting the support frame 1. Anti-collision sleeves 8 are connected to both sides of the outer surface of the support frame 1. The anti-collision sleeves 8 have an "H"-shaped cross section. Buffer sleeves 9 are connected to the outer surface of the anti-collision sleeves 8. There is a gap between the outer surface of the anti-collision sleeves 8 and the buffer sleeves 9. Both the anti-collision sleeves 8 and the buffer sleeves 9 are made of porous polyurethane elastomer material. A second Velcro 10 is connected to the outer surface of the buffer sleeve 9. The protective gear 6 is... Both the surface and back are connected with first Velcro 7. If the worker swings, they will swing towards the anti-collision sleeve 8 and the buffer sleeve 9, causing them to collide with the anti-collision sleeve 8 and the buffer sleeve 9. At this time, the buffer sleeve 9 first absorbs the impact force of the worker's impact, thus preventing the worker from being injured. The buffer sleeve 9 will deform and come into contact with the anti-collision sleeve 8, further absorbing the impact force through the secondary energy absorption of the anti-collision sleeve 8, thus effectively preventing the worker from being injured. At the same time, by setting first Velcro 7 on the protective gear 6 except for the areas of components such as buckles, adjustment buckles, and installation buckles, and by allowing the worker to see and wear some equipment such as arm guards and leg guards with first Velcro 7 wrapped around their surface, when the worker collides with the buffer sleeve 9, the multiple first Velcro 7 on the worker's body can stick to the second Velcro 10 on the buffer sleeve 9. When the worker swings back, it can pull the worker back, or the first Velcro 7 and the second Velcro 10 can separate and absorb energy, reducing the worker's swing force and thus reducing the swing angle, effectively reducing the occurrence of injuries caused by swinging back.
[0035] See Figure 1 In the above embodiment, a speed difference fall arrestor 3 is sleeved on the outside of the safety rope 2. An energy absorber 5 is connected to one side of the speed difference fall arrestor 3 through an intermediate rope 4. A protective gear 6 is connected to one end of the energy absorber 5. The protective gear 6 is a five-point safety harness. When a worker falls, the speed difference fall arrestor 3 will prevent the worker from falling further and avoid the worker from falling to the ground and getting injured. In addition, the energy absorber 5, together with the protective gear 6, will absorb the impact force of the worker's fall and reduce the damage to the worker's body.
[0036] Example 2:
[0037] Based on the above embodiment one, the following settings are now implemented to increase usage.
[0038] See Figure 3 and Figure 4 In the above embodiment, two safety ropes 2 are provided, the speed difference fall arrestor 3 is detachably connected to the safety rope 2, the cross-section of the buffer sleeve 9 is racetrack shaped, which facilitates the stacking of goods in front of and behind the support 1, and one fall arrestor can protect up to two workers.
[0039] The implementation principle of this utility model is as follows: First, the staff works in front of the support 1. The lateral length of the support 1 in actual use depends on the size of the high plate and must be greater than the lateral length of the high plate so that the staff can swing towards the anti-collision sleeve 8 and the buffer sleeve 9 for protection when falling from the side and rear of the high plate. The shape of the support 1 makes the middle of the support 1 hollow, and the shape of the safety rope 2 makes the safety rope 2 located in the hollow area of the support 1, reducing the possibility of the staff hitting the support 1.
[0040] When a worker falls, the speed difference fall arrestor 3 prevents the worker from falling further and landing on the ground, thus avoiding injury. The energy absorber 5, in conjunction with the protective gear 6, absorbs the impact of the fall, reducing the risk of injury. If the fall is swayed, the worker will swing towards the impact sleeve 8 and the buffer sleeve 9, colliding with them. The buffer sleeve 9 first absorbs the impact force, preventing injury. Then, the buffer sleeve 9 deforms and comes into contact with the impact sleeve 8, further absorbing the impact force through secondary energy absorption, effectively preventing worker injury. When an employee is injured, the first Velcro 7 is installed on the protective gear 6, except for the areas with buckles, adjustment buckles, and installation buckles. The employee can also wear arm and leg guards with the first Velcro 7 wrapped around their body. When the employee collides with the buffer sleeve 9, the multiple first Velcro 7s on the employee can stick to the second Velcro 10s on the buffer sleeve 9. When the employee swings back, the first Velcro 7s can hold the employee back, or the first Velcro 7s can separate from the second Velcro 10s to absorb energy, reducing the force of the employee's swing and thus reducing the angle of the swing. This effectively reduces the occurrence of injuries caused by the swing.
[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. Fall arrest device for use at height, comprising a support (1) and a harness (6), characterized in that: The bracket (1) bottom two sides are connected with safety rope (2), the bracket (1) outer surface two sides are connected with anti-collision sleeve (8), and the anti-collision sleeve (8) outer surface is connected with buffer sleeve (9), the buffer sleeve (9) outer surface is connected with second magic tape (10), the protector (6) outer surface and back are connected with first magic tape (7).
2. The fall arrest device according to claim 1, wherein: The anti-collision sleeve (8) cross section is "H" shape, and the anti-collision sleeve (8) outer surface middle and buffer sleeve (9) are left with gap.
3. The fall arrest device of claim 2, wherein: The anti-collision sleeve (8) and buffer sleeve (9) are made of porous polyurethane elastomer material.
4. The fall arrest device of claim 1, wherein: The safety rope (2) longitudinal section is "Y" shape, and the bracket (1) longitudinal section is "n" shape.
5. The fall arrest device of claim 4, wherein: The safety rope (2) is made of polyester fiber or aramid.
6. The fall arrest device of claim 1, wherein: The safety rope (2) is externally sleeved with speed difference anti-falling device (3), and one side of the speed difference anti-falling device (3) is connected with energy absorber (5) through intermediate rope (4), and one end of the energy absorber (5) is connected with protector (6).
7. The fall arrest device of claim 6, wherein: The protector (6) is five-point safety harness.
8. The fall arrest device of claim 6, wherein: The safety rope (2) is provided with two, and the speed difference anti-falling device (3) is detachably connected with the safety rope (2).
9. The fall arrest device of claim 3, wherein: The buffer sleeve (9) cross section is runway shape.