CN112669663A - Demonstration device for hydraulic system and compressed air foam system of fire truck - Google Patents
Demonstration device for hydraulic system and compressed air foam system of fire truck Download PDFInfo
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- CN112669663A CN112669663A CN202011467948.XA CN202011467948A CN112669663A CN 112669663 A CN112669663 A CN 112669663A CN 202011467948 A CN202011467948 A CN 202011467948A CN 112669663 A CN112669663 A CN 112669663A
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Abstract
The invention provides a demonstration device for a hydraulic system and a compressed air foam system of a fire fighting truck, which comprises a demonstration box and a demonstration structure, wherein the demonstration structure comprises a control panel for simulating a controller, a mixer mark for simulating a mixer, a compressed air simulation assembly for simulating a compressed air system, a foam supply simulation assembly for simulating a foam supply system and a water supply simulation assembly for a module water supply system, and the mixer mark, the compressed air simulation assembly, the foam supply simulation assembly and the water supply simulation assembly are all arranged on the surface of the demonstration box. According to the demonstration device for the hydraulic system and the compressed air foam system of the fire fighting truck, provided by the invention, the mixer mark, the compressed air simulation component, the foam supply simulation component and the water supply simulation component are all arranged on the surface of the demonstration box, so that a student can more visually know the working principle of the fire fighting truck, and the theoretical learning time of the student is shortened.
Description
Technical Field
The invention belongs to the technical field of education devices, and particularly relates to a demonstration device for a hydraulic system and a compressed air foam system of a fire fighting truck.
Background
Nowadays, with the development of society, the fire safety problem is almost ubiquitous in terms of the wide range of fire, electricity and gas. The fire-fighting work is a work with strong sociality, relates to various fields of society, and has close relation with various industries and lives of people. Therefore, the fire fighting safety awareness is strengthened, the fire fighting capability level is improved, and the safety and the stability of people's lives and properties are directly concerned. Foam type fire extinguishing and water power are main fire extinguishing modes, and the fire extinguishing purpose is achieved by destroying the combustion conditions of combustion objects through a large amount of foam or water sprayed.
At present, fire extinguishing systems in the fire engine both have water conservancy fire extinguishing systems, have foam fire extinguishing systems again, in order to make the student can be quick master the principle of putting out a fire, fire engine personnel can make the student master the principle of putting out a fire of fire engine fast through blackboard teaching or multimedia teaching usually. However, blackboard teaching or multimedia teaching is often not intuitive enough, resulting in difficulty in understanding by the trainee and a large amount of theoretical learning time.
Disclosure of Invention
The embodiment of the invention aims to provide a demonstration device for a hydraulic system and a compressed air foam system of a fire fighting truck, and aims to solve the technical problem that a student is difficult to understand due to the fact that blackboard teaching or multimedia teaching is not visual in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a fire engine hydraulic system and compressed air foam system teaching device for teaching fire engine hydraulic system and compressed air foam system, fire engine hydraulic system and compressed air foam system include compressed air system, foam supply system, water supply system, blender, control system, are used for operating control system's controller and be used for exporting the output tube of putting out a fire material, compressed air system's output, foam supply system's output, water supply system's output with the output tube all connect in the blender, fire engine hydraulic system and compressed air foam system teaching device include teaching box and teaching structure, teaching structure includes and is used for simulating the control panel of controller, is used for simulating the blender mark of blender, is used for simulating compressed air system's compressed air simulation subassembly, The foam supply simulation assembly is used for simulating the foam supply system, and the water supply simulation assembly is used for die-casting the water supply system, and the mixer mark, the compressed air simulation assembly, the foam supply simulation assembly and the water supply simulation assembly are all arranged on the surface of the teaching box.
In one embodiment, the water supply system comprises a water tank, a fire pump, a first water path, a second water path and a third water path, wherein two ends of the first water path are respectively connected with a water source and a water inlet end of the water tank, two ends of the second water path are respectively connected with a water outlet end of the water tank and a water inlet end of the fire pump, and two ends of the third water path are respectively connected with a water outlet end of the fire pump and the mixer; the water supply simulation assembly comprises a water tank mark, a fire pump mark, a first light strip with one end connected to the water tank mark, a second light strip with two ends connected to the water tank mark and the fire pump mark respectively, and a third light strip with two ends connected to the fire pump mark and the mixer mark respectively, the first light strip is used for simulating water inlet of the water tank, the second light strip is used for simulating water outlet of the water tank, and the third light strip is used for simulating water supply of the fire pump to the mixer.
In one embodiment, the foam supplying system includes a foam tank, a foam pump, a first foam path having both ends connected to the foam tank and the foam pump, respectively, and a second foam path having both ends connected to the foam pump and the mixer, respectively; foam supply simulation subassembly includes foam tank mark, foam pump mark, both ends connect respectively in foam tank mark with the fourth lamp area and both ends of foam pump mark connect respectively in foam pump mark with the fifth lamp area of blender mark, fourth lamp area is used for simulating foam tank outflow foam extremely the foam pump, fifth lamp area is used for simulating foam pump outflow foam extremely the blender.
In one embodiment, the compressed air system comprises an air compressor and an air path, wherein two ends of the air path are respectively connected to the air compressor and the mixer; the compressed air simulation assembly comprises an air compressor mark and a sixth light strip, two ends of the sixth light strip are respectively connected to the air compressor mark and the mixer mark, and the sixth light strip is used for simulating the compressed air to be conveyed to the mixer from the air pressure pump.
In one embodiment, the teaching structure further comprises a seventh light strip for analog output of a fire extinguishing substance.
In one embodiment, the fire extinguishing substance is water; or the fire extinguishing substance is a mixture of water, air and foam; or the fire extinguishing substance is a mixture of air and foam;
the seventh light strip can emit light of a first color for simulating output of water, light of a second color for simulating output of water, air and foam, and light of a third color for simulating output of air and foam.
In one embodiment, the control panel includes a cab control panel, a pump house control panel, and a foam ratio control panel.
In one embodiment, the foam proportion control board is provided with a foam proportion controller and a dry-wet foam switch, the foam proportion mixer is used for simulating a switch for regulating the foam flow, and the dry-wet foam switch is used for simulating a switch for opening or closing the water supply system.
In one embodiment, a circuit board is arranged inside the teaching box, and the compressed air simulation assembly, the foam supply simulation assembly and the water supply simulation assembly are all electrically connected with the circuit board.
In one embodiment, the demonstration device for the hydraulic system and the compressed air foam system of the fire fighting truck further comprises a support frame, the demonstration box is fixed on the support frame, and the bottom of the support frame is provided with a roller structure.
The demonstration device for the hydraulic system and the compressed air foam system of the fire fighting truck, provided by the invention, has the beneficial effects that: compared with the prior art, the demonstration device for the hydraulic system and the compressed air foam system of the fire fighting truck comprises a demonstration box and a demonstration structure, wherein the demonstration structure comprises a control panel, a mixer mark, a compressed air simulation assembly, a foam supply simulation assembly and a water supply simulation assembly, the compressed air simulation assembly is used for simulating the compressed air system, the foam supply simulation assembly is used for simulating the foam supply system, the water supply simulation assembly is used for simulating the water supply system, and the mixer mark, the compressed air simulation assembly, the foam supply simulation assembly and the water supply simulation assembly are all arranged on the surface of the demonstration box, so that a trainee can more visually know the working principle of the fire fighting truck, and the theoretical learning time of the trainee is shortened.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a perspective view of a device for demonstrating the hydraulic system and the compressed air foam system of a fire fighting truck according to an embodiment of the present invention;
FIG. 2 is a front view of a teach pendant provided by embodiments of the present invention;
fig. 3 is a schematic diagram of a hydraulic system and a compressed air foam system of a fire engine to which an embodiment of the present invention is applied.
Wherein, in the figures, the respective reference numerals:
1-a teaching box; 2-a teaching structure; 21-a control panel; 211-foam proportion control panel; 212-cab control panel; 213-pump house control panel; 22-a water supply simulation assembly; 221-a first light strip; 222-water tank mark; 223-a second light strip; 224-fire pump flag; 225-a third light strip; 23-a foam supply simulation assembly; 231-foam can marking; 232-a fourth light strip; 233-foam pump marking; 234-a fifth light strip; 24-a compressed air simulation assembly; 241-marking an air compressor; 242-a sixth light strip; 25-mixer marking; 26-a seventh light strip; 3-a support frame; 31-roller structure; 32-supporting feet;
4-fire engine hydraulic system and compressed air foam system; 41-water supply system; 411-a first waterway; 412-a water tank; 413-a second water circuit; 414-fire pump; 415-a third water circuit; 42-a foam supply system; 421-a foam tank; 422-a first foam pathway; 423-foam pump; 424-second foam pathway; 43-compressed air system; 431-an air compressor; 432-gas path; 44-a mixer; 45-output pipe.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The teaching device for the hydraulic system and the compressed air foam system of the fire fighting truck provided by the embodiment of the invention is explained. In one embodiment of the present invention, referring to fig. 1-3, a fire engine hydraulics and compressed air foam system teaching device is used to teach schematically a fire engine hydraulics and compressed air foam system 4. The fire fighting vehicle hydraulic system and the compressed air foam system 4 are used for extinguishing fire, and the system comprises a compressed air system 43, a foam supply system 42, a water supply system 41, a mixer 44, a control system for controlling the compressed air system 43, the foam supply system 43, the water supply system 41, the mixer 44, etc., and an output pipe 45, the controller being usually provided in the form of a control panel in the fire fighting vehicle for an operator to operate the controller and control the control system. The compressed air system 43 is used for outputting compressed air, the foam supply system 42 is used for outputting foam, the water supply system 41 is used for outputting water, the output end of the compressed air system 43, the output end of the foam supply system 42, the output end of the water supply system 41 and the output pipe 45 are all connected to the mixer 44, the mixer 44 is used for mixing water and foam, air and foam and the like, then mixed fire extinguishing substances or unmixed fire extinguishing substances are output from the output pipe 45, fire extinguishment can be carried out on the combustion products, and the output pipe 45 is a spraying pipe used for spraying the fire extinguishing substances in the fire fighting truck. Fire engine hydraulic system and compressed air foam system teaching device include teaching box 1 and teaching structure 2, and teaching structure 2 sets up on teaching box 1, makes the student can more audio-visual understanding fire engine's theory of operation. Specifically, the teaching structure 2 comprises a control panel 21, a mixer mark 25, a compressed air simulation component 24, a foam supply simulation component 23 and a water supply simulation component 22, wherein the control panel 21 is used for simulating a controller, the mixer mark 25 is used for simulating a mixer 44, the compressed air simulation component 24 is used for simulating a compressed air system 43, the foam supply simulation component 23 is used for simulating a foam supply system 42, the water supply simulation component 22 is used for simulating a water supply system 41, and the mixer mark 25, the compressed air simulation component 24, the foam supply simulation component 23 and the water supply simulation component 22 are all arranged on the surface of the teaching box 1, so that the compressed air system 43, the foam supply system 42 and the water supply system 41 of the fire fighting truck are all visually displayed on the teaching box 1, and a student can more quickly understand the working principle of the fire fighting truck.
The fire engine hydraulic system and compressed air foam system teaching device in the above embodiment, including teaching box 1 and teaching structure 2, teaching structure 2 includes control panel 21, blender mark 25, compressed air simulation subassembly 24, foam supply simulation subassembly 23 and water supply simulation subassembly 22, compressed air simulation subassembly 24 is used for simulating compressed air system 43, foam supply simulation subassembly 23 is used for simulating foam supply system 42, water supply simulation subassembly 22 is used for simulating water supply system 41, and, blender mark 25, compressed air simulation subassembly 24, foam supply simulation subassembly 23 and water supply simulation subassembly 22 all set up in the surface of teaching box 1, make the student can more audio-visual understanding fire engine's theory of operation, shorten student's theoretical study time.
Alternatively, referring to fig. 2, the mixer mark 25, the compressed air simulating assembly 24, the foam supply simulating assembly 23 and the water supply simulating assembly 22 are provided on the same surface of the teach pendant 1, which is more convenient for the student to understand intuitively.
Referring to fig. 3, the water supply system 41 includes a water tank 412, a fire pump 414, a first water path 411, a second water path 413 and a third water path 415, wherein two ends of the first water path 411 are respectively connected to a water source and a water inlet end of the water tank 412, two ends of the second water path 413 are respectively connected to an output end of the water tank 412 and a water inlet end of the fire pump 414, and two ends of the third water path 415 are respectively connected to a water outlet end of the fire pump 414 and the mixer 44. Specifically, when the fire engine extracts natural water from a water source to the water tank 412, the power switch is turned on first, one end of the first water path 411 sinks into the water source, the other end of the first water path 411 is connected to the water inlet end of the water tank 412, the water diversion switch is turned on, then water is diverted to the water tank 412 through the operation of the engine, after the water diversion is completed, the engine stops working, the water diversion switch is turned off, the first water path 411 (which can be a water suction pipe) is detached, and the water inlet of the water tank 412 is closed. When the water tank 412 is discharging water, the water outlet valve of the water tank 412 is opened, the engine is opened, the outlet valve of the mixer 44 is opened, the water in the water tank 412 enters the fire pump 414 through the first loop, then flows out of the output pipe 45 through the second water path 413 and the mixer 44, fire extinguishment is carried out, after the fire extinguishment is finished, the engine and the fire pump 414 stop working, all the remaining water discharging switches are opened, and all possible remaining water is discharged, so that the pipeline and the water pump are prevented from being frozen and damaged in winter.
In one embodiment of the present invention, referring to fig. 2, the water supply simulation assembly 22 includes a water tank mark 222, a fire pump mark 224, a first light strip 221, a second light strip 223 and a third light strip 225, and the water tank mark 222, the fire pump mark 224, the first light strip 221, the second light strip 223 and the third light strip 225 are all disposed on the surface of the teaching box 1. One end of the first lamp strip 221 is freely arranged, the other end of the first lamp strip 221 is connected to the water tank mark 222, and when the first lamp strip 221 is lighted, the water inlet action of the fire fighting truck water tank 412 can be simulated. One end of the second light strip 223 is connected to the water tank mark 222, the other end of the second light strip 223 is connected to the fire pump mark 224, one end of the third light strip 225 is connected to the fire pump mark 224, the other end of the third light strip 225 is connected to the mixer mark 25, when the water tank 412 of the fire fighting truck is drained, the second water channel 413 and the third water channel 415 both have water to flow through, when the second light strip 223 is lightened, the action of draining the water tank 412 can be simulated, and when the third light strip 225 is lightened, the action of sending water to the mixer 44 by the fire pump 414 can be simulated.
Referring to fig. 3, the foam supplying system 42 includes a foam tank 421, a foam pump 423, a first foam passage 422, and a second foam passage 424, two ends of the first foam passage 422 are respectively connected to the foam tank 421 and the foam pump 423, two ends of the second foam passage 424 are respectively connected to the foam pump 423 and the mixer 44, so that the foam tank 421, the first foam passage 422, the foam pump 423, the second foam passage 424, and the mixer 44 are sequentially connected, and the foam in the foam tank 421 passes through the first foam passage 422, the foam pump 423, the second foam passage 424, and the mixer 44 in sequence and is then output by the output pipe 45. The compressed air system 43 includes an air compressor 431 and an air path 432, both ends of the air path 432 are respectively connected to the air compressor 431 and the mixer 44, the air compressor 431 generates compressed air and enters the mixer 44 through the air path 432, and the mixer 44 can mix the compressed air and the foam and output the mixed air. Specifically, when foam extinguishment is carried out, a power switch is turned on, an engine is turned on, a foam injection switch on a foam proportion mixer 44 is turned on, a foam pump 423 is started, an upper key switch and a lower key switch are pressed to adjust parameters such as foam proportion and flow, then an air compressor 431 switch is turned on, the air compressor 431 is operated, a CAFS/foam selection switch is set, compressed air foam is finally output by the mixer 44 when the CAFS is selected, and fire extinguishing substances mixed with the foam are finally output when the foam is directed to the foam. And adjusting the switch of the dry foam and the wet foam, and selecting spray dry foam or wet foam. Optionally, the mixer 44 is a manifold.
In one embodiment of the present invention, referring to fig. 2, the foam supply simulation assembly 23 includes a foam tank mark 231, a foam pump mark 233, a fourth light strip 232, and a fifth light strip 234, the foam tank mark 231, the foam pump mark 233, the fourth light strip 232, and the fifth light strip 234 are all disposed on the surface of the teaching box 1, two ends of the fourth light strip 232 are respectively connected to the foam tank mark 231 and the foam pump mark 233, and two ends of the fifth light strip 234 are respectively connected to the foam pump mark 233 and the mixer mark 25. The fourth light strip 232 is illuminated to simulate foam in the foam tank 421 flowing to the foam pump 423 and the fifth light strip 234 is illuminated to simulate foam flowing from the foam pump 423 to the mixer 44.
In one embodiment of the present invention, referring to fig. 2, the compressed air simulation assembly 24 includes an air compressor mark 241 and a sixth light strip 242, the air compressor mark 241 and the sixth light strip 242 are both disposed on the surface of the teaching box 1, and both ends of the sixth light strip 242 are respectively connected to the air compressor mark 241 and the mixer 44. When the sixth light strip 242 is illuminated, it is used to simulate the operation of the air compressor 431 and compressed air is delivered from the air compressor 431 to the mixer 44.
In one embodiment of the present invention, referring to fig. 3, the teaching structure 2 further comprises a seventh light strip 26, and the seventh light strip 26 is used for simulating the state when the fire extinguishing substance is output. The output tubes 45 of the hydraulic system of the fire engine and the compressed air foam system 4 can output different fire extinguishing substances, and accordingly, the seventh light strip 26 emits different colors to correspondingly display and output different fire extinguishing substances. When the output pipe 45 outputs water, only the water supply system 41 works, and the seventh light strip 26 can emit light of the first color for simulating the action when the output pipe 45 outputs water; when the output tube 45 outputs the mixture of water, air and foam, the water supply system 41, the compressed air system 43 and the foam supply system 42 work simultaneously, and the seventh light strip 26 can emit light of a second color for simulating the action when the output tube 45 outputs the mixture of water, air and foam; when the output duct 45 outputs a mixture of air and foam, the compressed air system 43 and the foam supply system 42 are operated simultaneously, and the seventh light strip 26 may emit light of a third color for simulating the action of the output duct 45 when outputting the mixture of air and foam.
Optionally, first lamp area 221, second lamp area 223, third lamp area 225, fourth lamp area 232, fifth lamp area 234, sixth lamp area 242, seventh lamp area 26 are the horse race lamp, make each lamp area be the bright lamp of mobile formula when lighting, and are more similar with the practical application scene, consequently more vivid, the student's of being more convenient for understanding.
In one embodiment of the present invention, referring to fig. 2, the control panel 21 includes a cab control panel 212, a pump room control panel 213 and a foam ratio control panel 211, the cab control panel 212 is used to simulate the control panel of a cab in a fire engine, the pump room control panel 213 is used to simulate the control panel of a pump room in a fire engine, and the foam ratio control panel 211 is used to simulate the control panel of a fire engine for controlling the foam ratio. The cab control board 212, the pump room control board 213, and the foam ratio control board 211 may be disposed on the same side of the teaching box 1, or may be disposed on different sides of the teaching box 1.
Optionally, a foam proportion controller and a dry-wet foam switch are arranged on the foam proportion control board 211, the foam proportion controller is used for simulating a switch for adjusting the foam proportion in a fire truck, the dry-wet foam switch is used for simulating a switch of a water supply system 41 in the fire truck, when foam extinguishes fire, the water supply system 41 is switched on to output wet foam, and the water supply system 41 is switched off to output dry foam. The foam proportion control panel 211 is also provided with a barometer and the like, so that the real control panel scene in the fire engine can be conveniently displayed to students.
Optionally, the cab control panel 212 is provided with marks such as an engine water temperature meter, a tachometer, a speed per hour meter, an engine oil temperature meter, a power switch, a lighting switch, a warm air switch, a hand throttle, an oil pressure warning lamp, a hand brake, an engine, a clutch, a power takeoff warning and the like, and is used for displaying the control panel of the cab of the fire truck. The pump room control panel 213 is provided with marks such as a pump revolution meter, a pressure gauge, a vacuum gauge, a water tank liquid level, a foam tank 421 liquid level, pump room lighting, a vacuum pump, a water diversion switch, an air compressor, cleaning, self-protection, tank filling liquid, an emergency stop switch and the like, and is used for displaying the control panel in the pump room.
In one embodiment of the present invention, referring to fig. 1, a circuit board is disposed inside the teach pendant 1, the compressed air simulation component 24, the foam supply simulation component 23, and the water supply simulation component 22 are electrically connected to the circuit board, and the circuit board can supply power to the simulation components after being powered on through a power interface outside the teach pendant 1. More specifically, the first light strip 221, the second light strip 223, the third light strip 225, the fourth light strip 232, the fifth light strip 234, the sixth light strip 242, and the seventh light strip 26 are all electrically connected to the circuit board.
In one embodiment of the present invention, referring to fig. 1, the teaching device for a hydraulic system and a compressed air foam system of a fire fighting truck further comprises a support frame 3, and the teaching box 1 is fixed on the support frame 3, so that the teaching box 1 is located at a proper height. The bottom of support frame 3 is provided with gyro wheel structure 31 to make teaching box 1 can remove at any time, facilitate the use. The bottom of the support frame 3 is also provided with an adjustable supporting leg 32, which can adjust the height of the teaching box 1. Specifically, when the teaching box 1 needs to be moved, the supporting legs 32 are retracted, the roller structures 31 are made to contact with the ground, the teaching box 1 is moved to the corresponding positions through the roller structures 31, then the supporting legs 32 are extended out of the supporting ground, the supporting legs 32 are adjusted, and the height of the teaching box 1 is changed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a fire engine hydraulic system and compressed air foam system teaching device for teach fire engine hydraulic system and compressed air foam system, fire engine hydraulic system and compressed air foam system include compressed air system, foam supply system, water supply system, blender, control system, are used for the operation control system's controller and be used for exporting the output tube of putting out a fire material, compressed air system's output the output of foam supply system the output of water supply system with the output tube all connect in the blender, its characterized in that: fire engine hydraulic system and compressed air foam system teaching device include teaching box and teaching structure, teaching structure is including being used for the simulation the control panel of controller, be used for the simulation the blender mark of blender, be used for the simulation compressed air simulation subassembly of compressed air system, be used for the simulation the foam supply simulation subassembly of foam supply system and be used for the module the water supply simulation subassembly of water supply system, the blender mark the compressed air simulation subassembly the foam supply simulation subassembly with the water supply simulation subassembly all set up in the surface of teaching box.
2. The fire engine hydraulic system and compressed air foam system teaching device of claim 1 wherein: the water supply system comprises a water tank, a fire pump, a first water path, a second water path and a third water path, wherein two ends of the first water path are respectively connected with a water source and the water inlet end of the water tank, two ends of the second water path are respectively connected with the water outlet end of the water tank and the water inlet end of the fire pump, and two ends of the third water path are respectively connected with the water outlet end of the fire pump and the mixer; the water supply simulation assembly comprises a water tank mark, a fire pump mark, a first light strip with one end connected to the water tank mark, a second light strip with two ends connected to the water tank mark and the fire pump mark respectively, and a third light strip with two ends connected to the fire pump mark and the mixer mark respectively, the first light strip is used for simulating water inlet of the water tank, the second light strip is used for simulating water outlet of the water tank, and the third light strip is used for simulating water supply of the fire pump to the mixer.
3. The fire engine hydraulic system and compressed air foam system teaching device of claim 1 wherein: the foam supply system comprises a foam tank, a foam pump, a first foam passage and a second foam passage, wherein two ends of the first foam passage are respectively connected to the foam tank and the foam pump, and two ends of the second foam passage are respectively connected to the foam pump and the mixer; foam supply simulation subassembly includes foam tank mark, foam pump mark, both ends connect respectively in foam tank mark with the fourth lamp area and both ends of foam pump mark connect respectively in foam pump mark with the fifth lamp area of blender mark, fourth lamp area is used for simulating foam tank outflow foam extremely the foam pump, fifth lamp area is used for simulating foam pump outflow foam extremely the blender.
4. The fire engine hydraulic system and compressed air foam system teaching device of claim 1 wherein: the compressed air system comprises an air compressor and an air path, and two ends of the air path are respectively connected with the air compressor and the mixer; the compressed air simulation assembly comprises an air compressor mark and a sixth light strip, two ends of the sixth light strip are respectively connected to the air compressor mark and the mixer mark, and the sixth light strip is used for simulating the compressed air to be conveyed to the mixer from the air pressure pump.
5. The fire engine hydraulic system and compressed air foam system teaching device of claim 1 wherein: the teaching structure further comprises a seventh light strip for simulating and outputting fire extinguishing substances.
6. The fire engine hydraulic system and compressed air foam system teaching device of claim 5 wherein:
the fire extinguishing substance is water; or the fire extinguishing substance is a mixture of water, air and foam; or the fire extinguishing substance is a mixture of air and foam;
the seventh light strip can emit light of a first color for simulating output of water, light of a second color for simulating output of water, air and foam, and light of a third color for simulating output of air and foam.
7. The fire engine hydraulic system and compressed air foam system teaching device of claim 1 wherein: the control panel comprises a cab control panel, a pump room control panel and a foam proportion control panel.
8. The fire engine hydraulic system and compressed air foam system teaching device of claim 7 wherein: the foam proportion control board is provided with a foam proportion controller and a dry-wet foam switch, the foam proportion mixer is used for simulating a switch for regulating foam flow, and the dry-wet foam switch is used for simulating a switch for opening or closing the water supply system.
9. The fire engine hydraulic system and compressed air foam system teaching device of any one of claims 1-8 wherein: the teaching box is characterized in that a circuit board is arranged in the teaching box, and the compressed air simulation assembly, the foam supply simulation assembly and the water supply simulation assembly are electrically connected with the circuit board.
10. The fire engine hydraulic system and compressed air foam system teaching device of any one of claims 1-8 wherein: the demonstration device for the hydraulic system and the compressed air foam system of the fire fighting truck further comprises a support frame, the demonstration box is fixed on the support frame, and a roller structure is arranged at the bottom of the support frame.
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| CN209980618U (en) * | 2019-04-30 | 2020-01-21 | 上海地铁第一运营有限公司 | Water flow system for simulation station model |
| CN210691810U (en) * | 2019-10-23 | 2020-06-05 | 广东云走智能科技有限公司 | Simulated energy-saving interactive water heater display hanging plate |
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| CN204288661U (en) * | 2014-11-06 | 2015-04-22 | 公安消防部队昆明指挥学校 | Pressure conveying foam type fire fighting device apparatus for demonstrating |
| CN209980618U (en) * | 2019-04-30 | 2020-01-21 | 上海地铁第一运营有限公司 | Water flow system for simulation station model |
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