CN108394535B

CN108394535B - Life saving net releasing device for water surface rescue robot and releasing method thereof

Info

Publication number: CN108394535B
Application number: CN201810066430.1A
Authority: CN
Inventors: 文元桥; 李通; 李京翰; 黄子昂; 谢娜; 李馨怡; 牛牛; 肖长诗; 周春辉
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2018-01-23
Filing date: 2018-01-23
Publication date: 2020-01-14
Anticipated expiration: 2038-01-23
Also published as: CN108394535A

Abstract

The invention relates to a lifesaving net releasing device for a water surface rescue robot and a releasing method thereof, the device comprises a frame body, a support ring positioned below the frame body, and a motor and an electric push rod which are fixed above the frame body, the frame body comprises a plurality of cantilevers which are uniformly distributed around a shaft, the overhanging ends of the cantilevers are provided with pulleys, the output end of the motor is connected with a take-up pulley and a ratchet wheel, each cantilever is correspondingly provided with a traction rope, one end of each traction rope is fixed on the take-up pulley, the other end of each traction rope is connected with the support ring after passing through the pulley on the corresponding cantilever, the connection points of the traction ropes on the support ring are uniformly distributed along the support ring, the support ring is sealed by a lifesaving net. The invention can support the person falling into the water without overturning and falling.

Description

Life saving net releasing device for water surface rescue robot and releasing method thereof

Technical Field

The invention belongs to the field of water surface rescue, and particularly relates to a life net release device for a water surface rescue robot and a release method thereof.

Background

At present, when drowning people are rescued on the sea and rivers, most people drive ships to rescue, and the gold time for rescuing the drowning people is 4-6 minutes, so that if rescue is carried out in the gold time, the success rate of saving the life reaches 90%. In recent years, the size of airplanes and ships has been increased, and many victims are generated in the event of an accident, and particularly, many people who need rescue (hereinafter, rescuers) are generated in the event of an accident on the water surface of the ocean, lake, river, or the like. In addition, rescuers are also generated in regions where rivers are flooded and submerged due to natural disasters such as heavy rain, typhoons and tsunamis. In order to rescue these rescuers, the following rescue methods are generally used: 1) throwing a rope from the helicopter, so that a rescued person can grasp the rope, and approach from the water or descend from the helicopter to rescue; 2) a circular rescue bag with a rescue net inside is thrown down from a helicopter, and a rescued person in the circular rescue bag is captured to rescue.

However, when the body strength of the person falling into the water is weak, neither method 1) nor method 2) can lift the person falling into the water from the water surface, and for method 1), the person falling into the water may be too much to find or hold the rope, and for method 2), the person falling into the water may be pressed under the rescue belt and cannot catch the person falling into the water, and the two rescue methods can only rescue the person falling into the water on the water surface, but cannot rescue the person falling into the water, and the rescue process is affected.

Disclosure of Invention

The invention aims to provide a lifesaving net releasing device for a water surface rescue robot and a releasing method thereof.

The technical scheme adopted by the invention is as follows:

the utility model provides a surface of water rescue robot is with lifesaving net release, comprising a frame body, be located the support ring of support body below and fix motor and the electric push rod in the support body top, the support body includes the cantilever of a plurality of spool equipartition, the overhanging end of cantilever is equipped with the pulley, the output of motor is connected with take-up pulley and ratchet, every cantilever all corresponds there is a haulage rope, the one end of haulage rope is fixed on the take-up pulley, the other end is connected with the support ring after bypassing the pulley on corresponding the cantilever, the tie point of haulage rope on the support ring is along the support ring equipartition, the support ring is sealed by the lifesaving net, the telescopic end of electric push rod is fixed with the brake.

Furthermore, the output end of the motor is connected with the rotating shaft through a coupler, the take-up pulley and the ratchet wheel are both installed on the rotating shaft through fixing pins, a bearing seat is fixed on the frame body, and the bottom end of the rotating shaft is matched with the bearing seat through a bearing.

Furthermore, the motor is fixed on the frame body through a motor support, a bottom plate is fixed on the motor support, and the electric push rod is fixed on the bottom plate.

Furthermore, the haulage rope is connected with the support ring through fixed ear on the support ring, and fixed ear and haulage rope one-to-one just along the support ring equipartition.

Furthermore, a limiting plate is fixed on the frame body, and the brake rod penetrates through a limiting hole in the limiting plate in a matched mode.

Further, there are four cantilevers.

A release method of a lifesaving net release device for a water surface rescue robot comprises the following steps:

s1, preparing to release, namely, enabling the water surface rescue robot to approach a person falling into water, automatically reducing the speed and adjusting the angle to enable the person falling into water to be located in the area corresponding to the included angle between two adjacent cantilevers;

s2, starting to release and start the electric push rod, wherein the brake rod retracts to not influence the rotation of the ratchet wheel, the lifesaving net automatically descends under the gravity of the support ring, and when the lifesaving net descends to a certain depth, the brake rod extends to clamp the ratchet wheel to brake;

s3, when the water surface rescue robot starts to recover the water surface and detects that a person falling into the water enters the upper part of the lifesaving net, the brake rod retracts to not influence the rotation of the ratchet wheel, the motor is started, the take-up pulley is driven to rotate by the motor to recover the traction rope, the support ring and the lifesaving net are lifted, the person falling into the water surface is lifted, when the lifesaving net rises to a certain height, the brake rod extends out to clamp the ratchet wheel to brake, and meanwhile, the motor stops working;

s4, the return-water surface rescue robot carries the person falling into the water back to the rescue boat or the bank to complete rescue.

The invention has the beneficial effects that:

according to the invention, by controlling the falling depth of the support ring, the underwater person falling into the water can be lifted, so that the rescue efficiency is improved; the lifesaving net is lifted from a plurality of positions through a plurality of hauling ropes, so that the stability of the support ring is ensured, and the support ring is prevented from overturning; the ratchet wheel can be braked through the brake rod, so that the take-up pulley can be effectively stabilized, and the support ring is prevented from falling.

Drawings

Fig. 1 is a schematic structural diagram of a life net release device for a water surface rescue robot in the embodiment of the invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a top view of the magazine of fig. 1.

FIG. 4 is a top view of the ratchet, electric push rod, and brake lever of FIG. 1.

In the figure: 1-a motor; 2-a motor bracket; 3-a cantilever; 4-a pulley; 5-a traction rope; 6-fixing the lug; 7-a support ring; 8-a rotating shaft; 9-ratchet wheel; 10-a brake lever; 11-a limiting plate; 12-an electric push rod; 13-a base plate; 14-a take-up pulley; 15-bearing seat.

Detailed Description

The invention is further described below with reference to the figures and examples.

As shown in fig. 1 to 4, a life net releasing device for a water surface rescue robot comprises a frame body, a support ring 7 located below the frame body, and a motor 1 and an electric push rod 12 fixed above the frame body, wherein the motor 1 is fixed on the frame body through a motor support 2, a bottom plate 13 is fixed on the motor support 2, the electric push rod 12 is fixed on the bottom plate 13, the frame body comprises a plurality of cantilevers 3 uniformly distributed around a shaft, a pulley 4 is arranged at an extending end of each cantilever 3, an output end of the motor 1 is connected with a rotating shaft 8 through a coupler, a take-up pulley 14 and a ratchet 9 are installed on the rotating shaft 8 through fixing pins, a bearing seat 15 is fixed on the frame body, the bottom end of the rotating shaft 8 is matched with the bearing seat 15 through a bearing, each cantilever 3 corresponds to one traction rope 5, one end of each traction rope 5 is fixed on the take-up, the tie point of haulage rope 5 on support ring 7 is along support ring 7 equipartition, haulage rope 5 is connected with support ring 7 through fixed ear 6 on the support ring 7, fixed

ear

6 and 5 one-to-one of haulage rope just follow support ring 7 equipartitions, support ring 7 is sealed by the lifesaving net, the flexible end of electric push rod 12 is fixed with brake lever 10, be fixed with limiting plate 11 on the support body, brake lever 10 complex passes the spacing hole on the limiting plate 11, brake lever 10 stretches out and can block ratchet 9, it is rotatory not influence ratchet 9 to return.

s1, preparing to release, namely, enabling the water surface rescue robot to approach a person falling into the water, automatically reducing the speed and adjusting the angle to enable the person falling into the water to be located in a region corresponding to an included angle between two adjacent cantilevers 3 (preventing the traction rope 5 from blocking the person falling into the water to approach a lifesaving net);

s2, starting to release and start the electric push rod 12, retracting the brake rod 10 without influencing the rotation of the ratchet wheel 9, automatically descending the lifesaving net under the gravity of the support ring 7, and when the lifesaving net descends to a certain depth, extending the brake rod 10 to clamp the ratchet wheel 9 for braking;

s3, when the recovery-starting water surface rescue robot detects that a person falling into water enters the upper part of the lifesaving net, the brake rod 10 retracts to not influence the rotation of the ratchet wheel 9, the motor 1 is started, the take-up pulley 14 is driven to rotate through the motor 1, the traction rope 5 is recovered, the support ring 7 and the lifesaving net are lifted to lift the person falling into water out of the water surface, when the lifesaving net rises to a certain height, the brake rod 10 extends to clamp the ratchet wheel 9 to brake, and meanwhile, the motor 1 stops working;

As shown in fig. 3, in the present embodiment, there are four cantilevers 3 (actually, there may be 3 cantilevers, 5 cantilevers, or even more cantilevers).

According to the invention, by controlling the falling depth of the support ring 7, the underwater person falling into the water can be lifted, so that the rescue efficiency is improved; the lifesaving net is lifted from a plurality of positions through a plurality of hauling ropes 2, so that the stability of the support ring 7 is ensured, and the support ring 7 is prevented from overturning; the ratchet wheel 9 can be braked by the brake lever 10, so that the take-up pulley 14 can be effectively stabilized, and the support ring 7 can be prevented from dropping.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a surface of water rescue robot is with lifesaving net release which characterized in that: including the support body, be located the support ring of support body below and fix motor and the electric push rod in the support body top, the support body includes the cantilever that a plurality of spool equipartition, the overhanging end of cantilever is equipped with the pulley, the output of motor is connected with take-up pulley and ratchet, every cantilever all corresponds there is a haulage rope, the one end of haulage rope is fixed on the take-up pulley, the other end is connected with the support ring after walking around the pulley on corresponding cantilever, the tie point of haulage rope on the support ring is along the support ring equipartition, the support ring is sealed by the lifesaving net, the flexible end of electric push rod is fixed with the brake lever, the brake lever.

2. The life net release device for a water surface rescue robot as claimed in claim 1, wherein: the output end of the motor is connected with the rotating shaft through a coupler, the take-up pulley and the ratchet wheel are both installed on the rotating shaft through fixing pins, a bearing seat is fixed on the frame body, and the bottom end of the rotating shaft is matched with the bearing seat through a bearing.

3. The life net release device for a water surface rescue robot as claimed in claim 1, wherein: the motor is fixed on the frame body through the motor support, a bottom plate is fixed on the motor support, and the electric push rod is fixed on the bottom plate.

4. The life net release device for a water surface rescue robot as claimed in claim 1, wherein: the haulage rope passes through the fixed ear on the support ring to be connected with the support ring, and fixed ear and haulage rope one-to-one just along the support ring equipartition.

5. The life net release device for a water surface rescue robot as claimed in claim 1, wherein: the frame body is fixed with a limiting plate, and the brake rod is matched with and penetrates through a limiting hole in the limiting plate.

6. The life net release device for a water surface rescue robot as claimed in claim 1, wherein: the number of the cantilevers is four.

7. A release method of a life net release device for a water surface rescue robot as claimed in any one of claims 1 to 6, characterized in that: comprises the steps of (a) carrying out,

s3, when the recovery-starting water surface rescue robot detects that a person falling into water enters the upper part of the lifesaving net, the brake rod retracts to not influence the rotation of the ratchet wheel, the motor is started, the take-up pulley is driven to rotate through the motor to recover the traction rope, the support ring and the lifesaving net are lifted, the person falling into water is lifted out of the water surface, when the lifesaving net rises to a certain height, the brake rod extends out to clamp the ratchet wheel to brake, and meanwhile, the motor stops working;