JP4209516B2 - Fire fighting robot - Google Patents

Abstract

A fire-fighting robot with a drive unit, a water cannon (44) and a hose connected to the water cannon for supplying the water cannon with extinguishing medium from a location situated outside the site of the fire, is divided into a towing vehicle (12) and a trailer (14) which carries the water cannon and which can be coupled to the towing vehicle. <IMAGE>

Description

[0001]
INDUSTRIAL APPLICATION FIELD OF THE INVENTION
The present invention includes a high圧放water gun (44), this is connected to the high-pressure water cannon (44), and a hose for supplying the extinguishing medium from outside the fire site to the high pressure water cannon (44) The present invention relates to a fire-fighting robot.
[0002]
[Prior art]
Various embodiments of this type of fire-fighting robot are known. Firefighters usually inevitably have considerable danger to approach a burning building. That is, first, the building may collapse, or very small and heavy high-rise building debris may fall. Second, toxic or corrosive gases are generated, which in any case is very hot. The fire brigade is therefore directed to extinguish the building on fire from the outside using a high-pressure cannon and a large hose nozzle. However, this is not usually very effective. A large amount of fire-fighting water is required, and a large amount of contaminated fire-fighting water is produced, causing environmental problems.
[0003]
For these reasons, various fire extinguishing robots have been developed previously that have chains or stepping drives, carry high-pressure water cannons, and can be remotely controlled to the fire site. Generally, these fire extinguishing robots drag a hose that supplies water to a high-pressure cannon at the rear. Robots of this type are shown, for example, in the Applicant's DE-AS 14 09 740, US-PS 5 249 631 or DE 195 28 858 C2.
[0004]
This type of fire fighting robot is very expensive in view of expensive technology. In many cases where a fire cannot be extinguished fairly quickly, the fire-fighting robot is not undamaged and is not recovered, so for economic reasons, the use of a fire-fighting robot cannot be approved. This is because the price of a fire extinguishing robot may reach several hundred thousand marks.
[0005]
[Problems to be solved by the invention]
It is an object of the present invention to provide a fire extinguishing robot that requires low manufacturing costs and is used particularly for multiple purposes.
[0006]
[Means for Solving the Problems]
According to the present invention, the above-described problem is solved by separating the fire-extinguishing robot into a tow vehicle and a trailer, and this trailer carries a high-pressure water cannon and can be connected to the tow vehicle.
[0007]
This type of fire extinguishing robot can be used so that the trailer is pulled to the fire site by a towing vehicle with the high-pressure cannon mounted and then separated there.
[0008]
Subsequently, the tow vehicle can be returned and, for example, an additional high pressure cannon can be towed to the fire site. Trailers with high-pressure cannons can be manufactured at a much lower price than substantially more expensive towing vehicles, so when using trailers for fire extinguishing, the loss of trailers can be determined by considering economic factors. Can accept. An important advantage is that a single tow vehicle can be used to carry multiple fire fighting units to the appropriate location. In addition, the fire-extinguishing unit formed by the trailer can be transported to the site of use in other ways, for example by pre-prepared transport vehicles (trolleys, trolleys, etc.) and even by people wearing heat-resistant clothing. Can. On the other hand, tow vehicles can be used in other ways, for example to search the site using a video camera, or to open and close doors, windows or valves using a suitable manipulator arm.
[0009]
Since only a limited hose length can usually be pulled behind a fire-fighting robot in the middle of a deployment (practical) site, it is preferred that the trailer according to the invention carries a hose reel. . The hose can be unwound from the hose reel after the hose traction phase has been reached, or from the beginning while the trailer is moving.
[0010]
DIN 14 826.02 describes a hose reel that could be used at least in theory. Since the hose reel of the type described here has two relatively large bogie wheels, the hose reel is basically suitable as a trailer core according to the invention. Furthermore, it is necessary to have a center shaft with a coupling, for example a ball joint, at the end of the center shaft. In addition, a high pressure cannon is attached to the trailer. Water is guided from the hose to the high-pressure water cannon through a rotary duct provided in the reel and a tubular frame of the trailer.
[0011]
The exposed surface of the trailer and the components of the trailer are suitably protected against heat, for example when hot-galvanized. A sprinkler nozzle can also be provided which sprays water in a sprayed manner, thus cooling the hose reel, high pressure cannon and wound hose. Control and power leads for remote control of the high-pressure cannon are provided in the wall of the hose to rotate the high-pressure cannon and, optionally, to operate the valve. preferable. Instead, at least some functions can be operated wirelessly. For example, trailer wheels can be driven electrically, hydraulically or pneumatically, thus allowing some degree of alignment and repositioning of the trailer after separation. Hydraulic drive may be provided by extinguishing water pressure has been obtained now. The trailer may include a searchlight to illuminate the fire site, optionally a camera for observing the deployment, or a microphone and speaker for recording and conveying instructions to firefighters. In accordance with the foregoing, a suitable supply and operation unit for controlling the trailer is provided at the outer end of the hose.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the fire extinguishing robot is denoted by reference numeral 10 as a whole. This fire extinguishing robot has a tow vehicle 12 and a single-axis trailer 14. The trailer 14 is detachably coupled to the towing vehicle 12 and is connected to the towing vehicle 12 via a center shaft 16 and a ball joint 18. The tow vehicle 12 has a large number of support drive wheels 20 on both sides, and a circulation chain 22 is wound around the support drive wheels 20. A very simplified view, except for these elements, shows the chassis 24 and the multilayer heat shield 26 that covers the entire tow vehicle from above. The ball head 28 of the ball joint 18 is fixed to a chassis 24 at the rear of the towing vehicle 12 located on the left side of the drawing.
[0013]
An internal cooling system using a carbon dioxide shower can also be used.
[0014]
The tow vehicle 12 is remotely controlled by radio or the like, and includes an electric motor and a battery (not shown) as driving sources. As described above, the tow vehicle 12 can be remotely controlled from a location away from the fire site. The ball joint 18 is also remotely controlled so that the trailer 14 can be removed from the tow vehicle 12 and parked at the site of deployment (practical).
[0015]
The center shaft 16 of the trailer 14 is firmly connected to the frame 30. In this frame 30, on the one hand, two wheels 32 are attached to an axle 34 via a cantilever frame (not explicitly shown), and on the other hand, the frame 30 carries a hose reel 36. A hose (not shown alone) can be wound around the hose reel 36. The chain drive device 38 can be operated by the crank handle 40 and is provided for winding the hose. The spindle 42 of the hose reel 36 is provided out of the center with respect to the axle 34 of the wheel 32. The spindle 42 is hollow and connected to the end of the hose. Water flowing through the hose is guided from the spindle 42 through the frame 30 to the high-pressure water cannon 44 through one or two rotary ducts. The high-pressure water cannon 44 is attached to the center shaft 16.
[0016]
If wireless control operations are not possible, the high pressure cannon 44 can be electrically controlled via a lead (not shown) embedded in the hose material. The high-pressure water cannon 44 may have a slip ring assembly that enables power supply regardless of the position of the reel.
[0017]
The rebound that occurs during the operation of the high-pressure water cannon 44 can be prevented by the relatively high weight of the trailer 14 even in an empty state. Further, a claw peg 46 for supporting on the ground is attached to the lower side of the center shaft 16.
[0018]
FIG. 2 shows that the trailer having the hose reel 36 and the high-pressure water cannon 44 is in a deployed (practical) state of the high-pressure water cannon 44. In this state, the claw peg 46 provided on the lower side of the center shaft 16 supports the body on the ground. Thus, the high-pressure water cannon 44 is provided perpendicular to the horizontally extending center shaft 16. The claw pegs 46 prevent the trailer 14 from rotating backwards during operation of the cannon as a result of reaction forces and rebounding forces. As shown in FIG. 2, an outwardly directed hose 48 is shown.
[0019]
FIG. 3 shows that three consecutively arranged trailers 14 each having a hose reel are towed by the same vehicle. The hoses of these hose reels can be connected to each other. While moving to the site where the high pressure cannon 44 is upright, starting with the last reel, the hose can be fed and then the corresponding trailer (with the hose drawn) can be automatically separated.
[0020]
Finally, FIG. 4 shows the present invention in which the tow vehicle 12 and one trailer 14 are provided in combination with a necessary control and power supply in the form of a schematically illustrated control console 52 and a fire truck 54. A fire extinguishing robot based on is shown. A hose 56 extends from the fire engine 54 to the control console 52. The hose 56, electric between the fire trucks 54 and control console 52 also have good contain water hose supply line of pneumatic and hydraulic are properly connected. However, if the fire water can be removed from the fire hydrant, there may be a possibility of a simple hose for the supply line. Starting from the position illustrated in FIG. 1 where the end of the hose 48 is secured to the control console 52, the hose 48 is unwound from the hose reel 36 as the fire fighting robot moves.
[Brief description of the drawings]
FIG. 1 is a schematic side view and a partial sectional view of a fire extinguishing robot according to the present invention.
FIG. 2 is a view corresponding to FIG. 1 of the trailer placed in a position taken during operation of the high pressure cannon;
FIG. 3 is a diagram showing a possibility of connecting a plurality of trailers carrying reels to a towing vehicle.
FIG. 4 is a diagram showing a fire-fighting robot according to the present invention installed at a fire site, with a fire truck that carries the robot and a control console that controls the robot.
[Explanation of symbols]
12 Towing vehicle 14 Trailer 18 Ball joint 28 Ball head 30 Frame 32 Wheel 36 Hose reel 44 High-pressure water cannon.

Claims (4)

High圧放water gun (44), this is connected to the high-pressure water cannon (44), fire extinguishing comprising a hose for supplying the extinguishing medium from outside the fire site to the high pressure water cannon (44) In the robot, the fire-extinguishing robot is separated into a tow vehicle (12) and a trailer (14) at a fire site, and the trailer (14) carries the high-pressure water cannon (44) and the towing vehicle. A hose reel (36) attached to the trailer (14) and supporting a hose connected to the high pressure water cannon (44) , the hose being coupled to the vehicle (12) , A fire extinguishing robot characterized in that it is connected to the high-pressure water cannon (44) via at least one rotary duct and a frame (30) at least partly made of a tubular material . It said trailer (14), fire fighting robot according to claim 1, that in the form of a single-axis trailer, characterized with the two wheels (32) and center shaft (16). The fire-extinguishing robot according to claim 1 or 2, wherein the tow vehicle (12) is a tracked vehicle. A remotely controllable coupling unit (18, 28) is attached to the towing vehicle (12) so as to be detachably connected to the center shaft (16) of the trailer (14). The fire extinguishing robot according to claim 2 .

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