CN115177890A - Fire hose laying mechanism and method - Google Patents

Abstract

The invention provides a fire hose laying mechanism and a laying method, comprising a base, a winding disc and a drive motor, the base is fixed under a carrying body, and two parallel brackets and two parallel brackets are respectively provided on both sides of the base, The winding disc is pivotally arranged between the first bracket and the second bracket, the drive motor is fixedly arranged on the first bracket, and the first bracket is provided with a rotating shaft, one end of the rotating shaft is fixedly connected with the winding disc, and The rotating shaft is the same as the axis of the winding reel, and the other end of the rotating shaft is connected to the drive motor and is driven to rotate by the drive motor. This kind of fire hose laying mechanism does not need to fly at high altitude after the drone is mounted, which reduces the load of the drone and reduces the UAV fuel consumption, flexible obstacle avoidance, simple control, guarantee the safety of UAV, fast replacement of winding reels, fast and flexible laying can be realized, laying path and laying length can be updated in real time according to the fire situation on site, wide adaptability and efficiency high.

Description

A fire hose laying mechanism and laying method

technical field

The invention relates to the technical field of unmanned aerial vehicle fire protection, and more particularly, to a fire hose laying mechanism and a laying method.

Background technique

Fires in hills and forests often occur all over the world, causing great harm to people's lives and property. Due to the complex geographical environment of the forest, firefighters cannot enter the fire site in time to put out the fire. Therefore, when a forest fire occurs, it is often seen that helicopters or drones put water into the fire site to put out fires in various ways. For example, the patent number is CN201911077641.6, the patent name is: fire suppression method in forest fire field, and it is announced that a drone is used to lay a reverse water belt in the direction of fire spread. The method includes: firstly mounting the end of the water spray belt. On the drone, then control the drone to rise vertically until the water inlet end of the water supply belt leaves the ground, then control the drone to fly along the planned laying route, and synchronously control the drone to lower the height until the drone Descend to the warning height, and finally, control the drone to drop the end of the water spray belt to the ground.

When using this method, the drone needs to fly to a very high altitude to completely suspend the hose in the air, and then move forward and descend to lay it down. The fire situation and climatic conditions at the fire scene are complicated. Swinging, the forest environment is complex and there are many obstacles such as trees, telephone poles, electric towers, signal towers, etc., which are easy to cause the water belt to wrap around the obstacles, and then cause the drone to lose control and crash, and the drone needs to fly at a very high altitude. The human-machine load is huge, the control is extremely difficult, and the laying is difficult. Therefore, a fire hose laying mechanism and laying method are needed to solve this problem.

SUMMARY OF THE INVENTION

The present invention aims to solve the technical problems raised by the above-mentioned background art, and provides a fire hose laying mechanism and laying method.

In order to achieve the above purpose, the present invention provides the following technical solutions: a fire hose laying mechanism, including a base, a winding disc and a drive motor, the base is fixed under the carrying body, and two parallel brackets and two brackets are respectively provided on both sides of the base. , the winding disc is pivotally arranged between the first bracket and the second bracket, the drive motor is fixedly arranged on the first bracket, and the first bracket is provided with a rotating shaft, one end of the rotating shaft is fixedly connected with the winding disc, and the rotating shaft is connected with the winding disc axis In the same way, the other end of the rotating shaft is connected with the driving motor, and is driven to rotate by the driving motor, and the driving motor is controlled by remote control.

Preferably, the winding disc includes a plurality of annular retaining rings with the same axial center and arranged in parallel, and an axial core connecting the centers of two adjacent annular retaining rings, and the annular retaining rings and the axial cores are connected by bolts.

Preferably, the shaft core includes a first shaft core and a second shaft core, the first shaft core is provided with a sleeve for arranging the hose joint, and the second shaft core is provided with a groove for arranging the hose joint.

Preferably, the second bracket is detachably connected to the base, and the winding disc is detachably connected to the first and second brackets.

Preferably, bearings are respectively provided at the rotational connections between the winding disc and the first and second supports, and a plurality of locks connected to the carrying body are provided under the base.

The invention also provides a method for laying a fire hose,

The first achievable way is, first, the above-mentioned fire hose laying mechanism is replaced with a reel on which the fire hose is wound, and then fixed on the drone with the main body;

Then, control the drone to rise vertically to the safe obstacle avoidance height, and leave the water inlet end of the fire hose on the ground;

Finally, control the drone to fly along the planned laying route, and synchronously control the drive motor to drive the winding reel to release the fire hose, until the fire hose is released, put the end joint of the fire hose on the ground, and record the position to return.

Combined with the first achievable method, in the second achievable method, the flight speed of the drone is equal to the release speed of the fire hose, specifically, the flying distance of the drone is the same as the release length of the hose.

Combined with the first implementation, in the third implementation, the process of laying fire hoses also includes collecting fire information through drones, and determining the number of fire hoses and updating the laying path according to the fire information.

Combined with the first achievable method, in the fourth achievable method, quickly replace the spare reel of the reeled fire hose for the returning drone, and control the drone to fly back to the previous fire hose. The recorded position of the end joint is placed, control the drive motor to drive the reel to release the head end of the fire hose to the ground, and then control the drone to fly along the planned laying route, and synchronously control the drive motor to drive the reel to release the fire water until the fire hose is released, and finally, control the drone to drop the end joint of the fire hose to the ground, and record the position to return; repeat the above process until all fire hose laying tasks are completed.

In a fifth implementation manner, a helicopter can also be used instead of a drone to carry a fire hose laying mechanism to lay a fire hose.

Beneficial effects:

1. This kind of fire hose laying mechanism eliminates the need for high-altitude flight after the drone is mounted, which reduces the load of the drone and reduces the fuel consumption of the drone.

2. This kind of fire hose laying mechanism can fly at a low altitude after the drone is mounted, with flexible obstacle avoidance, simple control, and ensure the safety of the drone. For example, it can fly over the power grid at low altitude, which is not available in the existing technology for high-altitude laying. ability.

3. This kind of fire hose laying mechanism can quickly replace the winding disc, which can realize fast and flexible laying.

4. The fire hose laying method can update the laying path and laying length in real time according to the fire situation on site, with wide adaptability and high efficiency.

Description of drawings

1 is a schematic diagram of the overall structure of an embodiment of the present invention;

2 is a schematic diagram of a partial structure explosion of an embodiment of the present invention;

3 is a schematic diagram of a partial structure explosion of an embodiment of the present invention;

4 is a schematic diagram of the overall structure of an embodiment of the present invention;

In Figure 1-4: 1-UAV; 2-Fire hose laying mechanism; 201-Base; 2011-Lock; 2012-Bracket 1; 2013-Bracket 2; 2014-Butterfly bolt; 202-Drive motor; 2021-rotating shaft; 203-ring retaining ring; 204-first shaft core; 2041-sleeve; 205-second shaft core; 2051-groove.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations of the present invention.

Example 1

1-4, in an embodiment of the present invention, a fire hose laying mechanism includes a base 201, a winding disc and a drive motor 202. The base is fixed below the drone carrying the main body. The base 201 is provided with several The lock 2011 connected to the carrying main body, in the embodiment, the base 201 is a square frame, the lock 2011 is arranged at the four corners of the base 201, the two sides of the base 201 are respectively provided with parallel brackets 1 2012 and 2013, the brackets are triangles of the same size The bracket, the winding disc is pivotally arranged between the bracket one 2012 and the bracket two 2013, that is, the shaft is connected with the top of the tripod by rotation, the shaft and the top of the tripod are provided with bearings, the drive motor 202 is fixedly arranged on the bracket one 2012, the bracket A rotating shaft 2021 is arranged through the 2012. One end of the rotating shaft 2021 is fixedly connected with the winding disc, and the rotating shaft 2021 is the same as the axis of the winding disc. The other end of the rotating shaft 2021 is connected with the driving motor 202 and is driven to rotate by the driving motor 202. 202 is controlled by a remote control.

Of course, the fixing method of the base and the drone is not respectful of the Xianyu lock, and other conventional connection methods, such as strapping, welding, bolting, etc., can be used without departing from the protection scope of the present invention.

Wherein, the winding disc includes a plurality of annular retaining rings 203 with the same axial center and arranged in parallel and an axial core connecting the centers of two adjacent annular retaining rings 203. As shown in FIG. 4 , five annular retaining rings 203 are provided in the embodiment. Can wrap 4 fire hoses.

The shaft center includes a first shaft core 204 and a second shaft core 205. The first shaft core 204 is provided with a sleeve 2041 for placing the hose connector, and the second shaft core 205 is provided with a groove 2051 for placing the hose connector. . When winding the fire hose, the end of the fire hose can be inserted into the sleeve 2041, the sleeve 2041 is smooth, and the end of the fire hose can slide freely in the sleeve without being hindered, which is convenient for the end of the fire hose to slip off. After one roll of fire hose, connect the joint of the second roll of water hose to the first roll of fire hose along the outer side of the annular retaining ring 203, and then put the joint into the groove 2051 to wind the second roll of fire hose, The inside of the groove 2051 is also smooth, which does not affect the sliding of the joint, and the same subsequent hoses are wound in sequence.

The second bracket 2013 is detachably connected to the base 201, and the winding disc is detachably connected to the first bracket 2012 and the second bracket 2013, as shown in FIG. 2, in this embodiment, the second bracket 2013 and the base 201 are fixed by butterfly bolts 2014, Removable, the winding disc and the first bracket 2012 and the bracket 2 2013 also use the shaft and the groove, and the detachable connection is convenient for quick replacement of the winding disc.

Of course, it can also be fixed by means of hinges and pins or bolts. For example, the second bracket 2013 and the base 201 are connected by hinges, and the second bracket 2013 can be detachably connected with the end of the winding disc by using pins or bolts. Not shown here.

Example 2

The present invention also provides a method for laying a fire hose. First, the above-mentioned fire hose laying mechanism 2 is replaced with a reel on which the fire hose is wound, and then it is fixed on the carrying main drone 1;

Then, control the UAV 1 to rise vertically to the safe obstacle avoidance height, leave the water inlet end of the fire hose on the ground,

Finally, control the drone to fly along the planned laying route, and synchronously control the drive motor 202 to drive the reel to release the fire hose, until the fire hose is released, put the end joint of the fire hose on the ground, and record the position and return to home . The safe obstacle avoidance height refers to the safe height at which the UAV can avoid obstacles.

Among them, the flying speed of the UAV 1 is equal to the release speed of the fire hose. Specifically, the flying distance of the UAV 1 is synchronized with the release length of the hose within the same time period.

Assuming that the flying speed of the UAV 1 is constant, the rotational speed of the drive motor 202 changes as follows: Since the winding radius of the hose decreases gradually during the release, to keep the same length of hose released within the same time period, it is necessary to rotate a circle The number will gradually increase, then when a single roll of water hose is released, the rotation speed of the driving motor 202 becomes faster and faster, and when switching to the next roll after the release, it returns to a slow speed and then gradually speeds up, and so on;

Assuming that the rotational speed of the driving motor 202 is constant, the flying speed of the UAV changes as follows: Since the winding radius of the water hose is gradually reduced during the release, that is, the length of the water hose released at the same time will gradually decrease, and a single roll of water hose will be released. , the flying speed of the drone will change from fast to slow, and when switching to the next roll after releasing, it will return to fast and then gradually slow down, and so on.

Among them, in the process of laying the fire hose, the fire information is collected by the drone 1, and the quantity of the fire hose to be laid and the laying path are updated according to the fire information.

Among them, the above-mentioned returning drone 1 is quickly replaced with a spare reel that has been wound up with a fire hose, and the drone is controlled to fly back to the record position where the end joint of the fire hose was dropped, and the drive motor 202 is controlled to drive The reel releases the head end of the fire hose to the ground, then controls the drone 1 to fly along the planned laying route, and synchronously controls the drive motor 202 to drive the reel to release the fire hose until the fire hose is released, and finally , control the drone to drop the end joint of the fire hose to the ground, and record the position to return; repeat the above process until all the fire hose laying tasks are completed.

Example 3

The difference between this embodiment and Embodiment 2 is that the helicopter is used instead of the drone to carry the fire hose laying mechanism 2 to lay the fire hose. The reel that can be carried by the helicopter is much larger than that of the drone, and the length of the hose that can be laid is long. It can be laid at one time, and the laying efficiency is greatly improved.

Obviously, the embodiments described in this specification are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art can obtain all other embodiments without creative work. The embodiments all belong to the protection scope of the present invention.

Claims (10)

1. The utility model provides a mechanism is laid to fire hose which characterized in that: including base, coiling dish and driving motor, the base is fixed in carrying on the main part below, the base both sides are equipped with parallel support one and support two respectively, the coiling dish pivot sets up between support one and support two, driving motor is fixed to be set up on support one, run through on the support one and be provided with the pivot, pivot one end and coiling dish fixed connection, and the pivot is the same with coiling dish axle center, the pivot other end is connected with driving motor to by driving motor drive rotation.

2. The fire hose laying mechanism according to claim 1, wherein: the winding disc comprises a plurality of annular retainer rings with the same axle centers and arranged in parallel and an axle center for connecting the centers of two adjacent annular retainer rings.

3. The fire hose laying mechanism according to claim 2, wherein: the water hose connector comprises a water hose connector body and is characterized in that the axis comprises a first axis core and a second axis core, a sleeve for placing the water hose connector is arranged in the first axis core, and a groove for placing the water hose connector is formed in the second axis core.

4. The fire hose laying mechanism according to claim 1, wherein: the coiling disc is provided with bearings at the rotating connection parts of the first support and the second support respectively, and the base is provided with a plurality of lock catches connected with the carrying main body.

5. The fire hose laying mechanism according to any one of claims 1 to 4, wherein: the second support is detachably connected with the base, and the winding disc is detachably connected with the first support and the second support.

6. A fire hose laying method is characterized in that:

firstly, replacing the fire hose laying mechanism of any one of claims 1 to 5 with a winding disc on which a fire hose is wound, and then fixing the fire hose laying mechanism on an unmanned aerial vehicle carrying a main body;

then, controlling the unmanned aerial vehicle to vertically ascend until the safe obstacle avoidance height, and leaving the water inlet end of the fire hose on the ground;

and finally, controlling the unmanned aerial vehicle to fly along the planned laying route, synchronously controlling the driving motor to drive the winding disc to release the fire hose until the fire hose is released, putting the tail end joint of the fire hose on the ground, and recording the position return voyage.

7. The method of laying a fire hose according to claim 5, wherein: the flight speed of the unmanned aerial vehicle is equal to the release speed of the fire hose.

8. The fire hose laying method according to claim 5, characterized in that: in the process of laying the fire hoses, the fire fighting method further comprises the steps of collecting fire information through the unmanned aerial vehicle, determining the quantity of the laid fire hoses and updating laying paths according to the fire information.

9. The fire hose laying method according to claim 5, characterized in that: rapidly replacing a standby winding disc with a wound fire hose for the unmanned aerial vehicle which is navigated back, controlling the unmanned aerial vehicle to fly back to a throwing recording position of a tail end joint of a previous fire hose, driving a driving motor to drive the winding disc to release a head end of the fire hose to the ground, then controlling the unmanned aerial vehicle to fly along a planned laying route, synchronously controlling the driving motor to drive the winding disc to release the fire hose until the fire hose is released, throwing the tail end joint of the fire hose to the ground, and recording the position to navigate back; and repeating the process until all the fire hose laying tasks are completed.

10. A method of laying a fire hose according to any one of claims 6 to 9, wherein: the helicopter can also be used for replacing an unmanned aerial vehicle to carry a fire hose laying mechanism to lay the fire hose.

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