Anti-falling net for fire rescue

Abstract

The anti-falling net for fire rescue comprises two first supporting rods and two second supporting rods which are installed on the outer side of the tail of a compartment of a rescue vehicle, the two first supporting rods and the two second supporting rods are symmetrically arranged, and a climbing ladder is installed on the side faces of the second supporting rods through bolts. Hanging hooks are installed above the first supporting rod and the second supporting rod, flexible anti-falling nets are installed outside the hanging hooks in a hanging mode, and the flexible anti-falling nets are stored in the storage box when not used. A telescopic storage mechanism is arranged between the first supporting rod and the rescue vehicle compartment and between the second supporting rod and the rescue vehicle compartment. According to the anti-falling net for fire rescue, the novel structural design is adopted, the whole device is installed at the tail of a compartment of a rescue vehicle and moves along with the rescue vehicle, the device can be used in the place where the rescue vehicle can reach, rescue workers do not need to carry the device in the whole process, and the use convenience of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire rescue technology, specifically a fall protection net for fire rescue. Background Technology

[0002] Fire rescue refers to actions carried out by firefighters, rescuers, and volunteers in fire and other emergency situations, aimed at protecting life, property, and the environment. When there is a risk of people falling from heights, fall protection nets are used to catch falling people and achieve the purpose of protection.

[0003] In the prior art, the technical solution disclosed in Chinese Patent Application No. CN202120609377.2 is as follows: The telescopic safety net includes a telescopic frame, a safety net and supporting poles. The safety net and supporting poles form a table-shaped structure with a double-layer safety net structure. A telescopic frame is provided between two adjacent supporting poles. The telescopic frame is also located between the two layers of safety net.

[0004] Based on the above information, it can be seen that existing fall protection nets generally require support frames. In actual use, high-strength metal materials are often used to ensure the strength of the support frames. High-strength metal materials are generally heavy, and firefighters need to carry the equipment to the rescue location, which is quite strenuous during the transportation process. Utility Model Content

[0005] The purpose of this utility model is to provide a fall protection net for fire rescue, so as to solve the problem of inconvenience in handling and moving mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire rescue fall protection net, comprising a first support rod and a second support rod installed on the outer side of the rear of a rescue vehicle compartment. Two of each support rod are symmetrically arranged. A climbing ladder is bolted to the side of the second support rod. Hooks are installed above both the first and second support rods, and a flexible fall protection net is suspended from the outside of the hooks. When not in use, the flexible fall protection net is stored inside a storage box. A telescopic storage mechanism is provided between the first and second support rods and the rescue vehicle compartment. An air storage chamber for buffering the hooks is opened inside the upper end of the first and second support rods, and the air storage chamber is filled with inert helium gas.

[0007] Preferably, the telescopic storage mechanism includes a push rod rotatably mounted outside the first support rod, and a telescopic cylinder is rotatably mounted at the middle position of the push rod, and the upper end of the telescopic cylinder is rotatably connected to the rescue vehicle compartment.

[0008] Preferably, a connecting rod is provided between the first support rod and the second support rod to connect the two, and a first connecting block and a second connecting block are respectively installed at the front and rear ends of the connecting rod.

[0009] Preferably, the first connecting block is rotatably mounted on the upper side of the first support rod, and the second connecting block and the limiting slide groove form an up-and-down sliding structure.

[0010] Preferably, the limiting groove is formed on the outer side of the second support rod, and the fixing bolt is rotatably installed on the outside of the second connecting block, and the fixing bolt is threaded to the inner side of the limiting groove.

[0011] Preferably, a support column is fixedly installed at the lower end of the suspension hook, and a sealing piston is fixedly installed at the lower end of the support column.

[0012] Preferably, the sealing piston is located inside the gas storage chamber, and the sealing piston slides in a sealed manner against the inner wall of the gas storage chamber, and a buffer spring is fixedly installed between the lower surface of the sealing piston and the bottom surface of the gas storage chamber.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the fire rescue fall protection net adopts a novel structural design, the specific details of which are as follows:

[0014] 1. The device is installed at the rear of the rescue vehicle and moves with the vehicle. It can be used wherever the rescue vehicle can reach, and the entire process does not require rescue personnel to move the device, thus improving the ease of use of the device.

[0015] Furthermore, by extending the telescopic cylinder, the push rod is rotated, which pushes the first support rod outward, eventually causing the bottoms of the first and second support rods to contact the ground. Then, the second support rod is pulled out and fixed with the connecting rod. Finally, the flexible fall protection net can be taken out of the storage box and hung on the suspension hook for normal use.

[0016] Furthermore, the safety of rescued personnel is improved by allowing them to descend via the escalator. The bolts on the escalator can be removed and used separately to directly rescue those in lower situations.

[0017] 2. When a person falls, the flexible fall protection net is used to catch them. During the catch, the flexible fall protection net is subjected to impact force, which causes the support column to move the sealing piston downward in the gas storage chamber. The sealing piston compresses the helium in the gas storage chamber, and at the same time, the buffer spring achieves a buffering effect on the support column. Thus, the flexible fall protection net can achieve a better buffering effect on the person and ensure the safety of the rescue. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall installation position structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall unfolded structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the linkage structure between the push rod and the telescopic cylinder of this utility model;

[0021] Figure 4 This is a schematic diagram of the second support rod structure of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0023] Figure 6 This is a schematic diagram of the internal structure of the gas storage chamber of this utility model.

[0024] In the diagram: 1. Rescue vehicle compartment; 2. First support rod; 3. Second support rod; 4. Suspension hook; 5. Flexible fall protection net; 6. Storage box; 7. Push rod; 8. Telescopic cylinder; 9. Connecting rod; 10. First connecting block; 11. Second connecting block; 12. Limiting groove; 13. Fixing bolt; 14. Climbing ladder; 15. Support column; 16. Sealing piston; 17. Air storage chamber; 18. Buffer spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figures 1-5To achieve the purpose of using the device in a vehicle, this embodiment provides the following technical solution, specifically disclosing: a first support rod 2 and a second support rod 3 installed on the outer side of the rear of the rescue vehicle compartment 1. Two first support rods 2 and two support rods 3 are symmetrically arranged. A climbing ladder 14 is bolted to the side of the second support rod 3. A hook 4 is installed above both the first support rod 2 and the second support rod 3, and a flexible fall protection net 5 is suspended from the outside of the hook 4. The flexible fall protection net 5 is stored inside a storage box 6 when not in use. A telescopic storage mechanism is provided between the first support rod 2 and the second support rod 3 and the rescue vehicle compartment 1. The telescopic storage mechanism includes components rotatably mounted on the first support rod. 2. An external push rod 7 is provided, and a telescopic cylinder 8 is rotatably installed in the middle of the push rod 7. The upper end of the telescopic cylinder 8 is rotatably connected to the rescue vehicle compartment 1. A connecting rod 9 is provided between the first support rod 2 and the second support rod 3 to connect the two. The first connecting block 10 and the second connecting block 11 are respectively installed at the front and rear ends of the connecting rod 9. The first connecting block 10 is rotatably installed on the upper side of the first support rod 2. The second connecting block 11 and the limiting slide groove 12 form an up-and-down sliding structure. The limiting slide groove 12 is opened on the outer side of the second support rod 3. A fixing bolt 13 is rotatably installed on the outside of the second connecting block 11. The fixing bolt 13 is threadedly fixed to the inner side of the limiting slide groove 12.

[0027] When a rescue is needed, the rescuers first drive the rescue vehicle to the designated rescue location. Then, they activate the telescopic cylinder 8, which extends the cylinder to rotate the push rod 7 downwards. As the push rod 7 rotates downwards, it pushes the first support rod 2 to move outwards. Simultaneously, the first support rod 2 moves downwards, eventually bringing its bottom into contact with the ground for support. Next, the second support rod 3 is pulled outwards relative to the first support rod 2. During this pulling process, the upper end of the connecting rod 9 rotates with the first connecting block 10, while the lower end of the connecting rod 9 slides in the limiting groove 12 on the outside of the second support rod 3. When the second support rod 3 reaches its furthest point, the connecting rod 9 rotates to a horizontal position. At this point, the fixing bolt 13 is rotated to fix the second connecting block 11, thus securing the first support rod 2 and the second support rod 3. Finally, the flexible fall arrest net 5 is taken out of the storage box 6 and hung on the suspension hooks 4 at the four corners, completing the final assembly. The flexible fall arrest net 5 is then used to catch falling personnel, achieving the rescue objective.

[0028] Example 2: Please refer to Figure 6In order to improve the buffering effect, this embodiment provides the following technical solution, which specifically discloses: the upper end of the first support rod 2 and the second support rod 3 is provided with an air storage cavity 17 for buffering the suspension hook 4. The air storage cavity 17 is filled with inert helium gas. The lower end of the suspension hook 4 is fixedly installed with a support column 15, and the lower end of the support column 15 is fixedly installed with a sealing piston 16. The sealing piston 16 is located inside the air storage cavity 17, and the sealing piston 16 slides in a sealed manner against the inner wall of the air storage cavity 17. A buffer spring 18 is fixedly installed between the lower surface of the sealing piston 16 and the bottom surface of the air storage cavity 17.

[0029] When the flexible fall protection net 5 catches a falling person, it receives an impact force. Under the action of the impact force, the suspension hook 4 drives the support column 15 to move downward. At this time, the support column 15 drives the sealing piston 16 at its bottom to move downward in the air storage chamber 17. When the sealing piston 16 moves downward, it squeezes the helium in the air storage chamber 17. Thus, the reaction force of the compressed helium, together with the buffer spring 18, achieves a buffering effect, thereby improving the use effect of the flexible fall protection net 5.

[0030] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fall protection net for fire rescue, comprising a first support rod (2) and a second support rod (3) installed on the outer side of the rear of a rescue vehicle compartment (1), characterized in that, Also includes: The first support rod (2) and the second support rod (3) are symmetrically arranged in twos. The second support rod (3) is bolted to the side to install a climbing ladder (14). The first support rod (2) and the second support rod (3) are both equipped with a hook (4). A flexible fall protection net (5) is suspended on the outside of the hook (4). The flexible fall protection net (5) is stored in the storage box (6) when not in use. A telescopic storage mechanism is provided between the first support rod (2) and the second support rod (3) and the rescue vehicle compartment (1); The upper ends of the first support rod (2) and the second support rod (3) are provided with a gas storage chamber (17) for buffering the suspension hook (4), and the gas storage chamber (17) is filled with inert helium.

2. The fire rescue fall protection net according to claim 1, characterized in that: The telescopic storage mechanism includes a push rod (7) rotatably mounted outside the first support rod (2), and a telescopic cylinder (8) is rotatably mounted at the middle position of the push rod (7), and the upper end of the telescopic cylinder (8) is rotatably connected to the rescue vehicle compartment (1).

3. A fall protection net for fire rescue according to claim 2, characterized in that: A connecting rod (9) is provided between the first support rod (2) and the second support rod (3) to connect the two, and a first connecting block (10) and a second connecting block (11) are respectively installed at the front and rear ends of the connecting rod (9).

4. A fall protection net for fire rescue according to claim 3, characterized in that: The first connecting block (10) is rotatably mounted on the upper side of the first support rod (2), and the second connecting block (11) and the limiting slide groove (12) form an up-and-down sliding structure.

5. A fall protection net for fire rescue according to claim 4, characterized in that: The limiting groove (12) is opened on the outer side of the second support rod (3), and the fixing bolt (13) is rotatably installed on the outside of the second connecting block (11), and the fixing bolt (13) is threadedly fixed to the inner side of the limiting groove (12).

6. A fall protection net for fire rescue according to claim 1, characterized in that: The lower end of the suspension hook (4) is fixedly installed with a support column (15), and the lower end of the support column (15) is fixedly installed with a sealing piston (16).

7. A fall protection net for fire rescue according to claim 6, characterized in that: The sealing piston (16) is located inside the gas storage chamber (17), and the sealing piston (16) slides in a sealed manner against the inner wall of the gas storage chamber (17). A buffer spring (18) is fixedly installed between the lower surface of the sealing piston (16) and the bottom surface of the gas storage chamber (17).

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