CN216249685U - Fire demonstration table - Google Patents

Abstract

The utility model discloses a fire demonstration table, which comprises four fire demonstration devices, wherein each fire demonstration device is in a quarter circle shape when viewed from the overlooking direction, the four fire demonstration devices are spliced into a circular fire demonstration table, the four fire demonstration devices respectively demonstrate line overload, line short circuit, circuit leakage and poor circuit contact, each fire demonstration device comprises a base, a left baffle, a right baffle and a front baffle, the base is arranged on the base, the base is in a fan shape when viewed from the overlooking direction, and a fire demonstration circuit and a scene arrangement structure corresponding to a fire occurrence scene are arranged in a space defined by the left baffle, the right baffle and the front baffle and the base; the utility model has the advantages that: the fire demonstration platform is used for demonstrating a fire scene, plays a role in warning and education for the public, and improves the safety consciousness of preventing the fire for the public.

Description

Fire demonstration table

Technical Field

The utility model relates to the field of fire demonstration, in particular to a fire demonstration table.

Background

Electrical fires generally refer to thermal energy released due to the failure of electrical lines, consumers, appliances and power supply and distribution equipment: energy released such as high temperature, arcing, electrical sparks, and non-failure; such as hot surfaces of electric heating appliances, fires caused by ignition of the body or other combustible material under burning conditions, including fires caused by lightning and static electricity.

An electrical fire includes four aspects: the leakage fire is a fire caused by local high temperature generated when leakage current flows into the ground, such as a part with large resistance, and nearby combustible materials catch fire, thereby causing a fire. In addition, a leakage spark generated at a leakage point also causes a fire. The short circuit fire is caused by that the resistance is suddenly reduced and the current is suddenly increased during short circuit, the instant heating value is very large and greatly exceeds the heating value of the circuit during normal operation, strong sparks and electric arcs are easily generated at the short circuit point, the insulating layer can be rapidly combusted, and metal can be melted to cause the combustion of nearby inflammable and combustible substances, so that the fire is caused. The overload fire is that when the wire is overloaded, the aging and deterioration of the insulating layer of the wire are accelerated. When heavily overloaded, the temperature of the wire can rise, even causing the insulation of the wire to burn and igniting the combustibles in the vicinity of the wire, thereby causing a fire. The fire with overlarge contact resistance is on an electric circuit through which a larger current passes, if the phenomenon of overlarge contact resistance occurs at a certain position, great heat can be generated in a local range with overlarge contact resistance, so that the metal is discolored and even melted, an insulating layer of a lead is caused to be burnt, and combustible substances nearby the burning or dust, fibers and the like accumulated on the lead are led to be burnt, thereby causing the fire.

At present, many research institutions at home and abroad research and develop and release an electric fire simulation experiment box, and the electric fire simulation experiment box demonstrates a fire scene, plays a role in warning and education for the public, so that the safety consciousness of preventing fire of the public is improved, and the research on electric fire products becomes a hot problem in the current industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fire demonstration table for demonstrating a fire scene, which plays a role in warning and education for the public so as to improve the safety consciousness of preventing fire for the public.

The utility model solves the technical problems through the following technical means: a fire demonstration table comprises four fire demonstration devices, each fire demonstration device is in a quarter circle shape when viewed from the overlooking direction, the four fire demonstration devices are spliced into a circular fire demonstration table, the four fire demonstration devices respectively demonstrate line overload, line short circuit, circuit leakage and poor circuit contact, each fire demonstration device comprises a base, a left baffle, a right baffle and a front baffle, the base is arranged on the base and is in a fan shape when viewed from the overlooking direction, and a fire demonstration circuit and a scene arrangement structure corresponding to a fire occurrence scene are arranged in a space defined by the left baffle, the right baffle and the front baffle and the base; set up the block terminal on the preceding baffle, the top of block terminal sets up the display screen, and left baffle, right baffle and preceding baffle all set up the wire casing, all set up first socket on left baffle and the right baffle, and the power output port of block terminal passes through the cable and is connected with first socket, and the cable is walked the line in the wire casing.

The fire demonstration platform is provided with four fire demonstration devices for respectively demonstrating line overload, line short circuit, circuit leakage and poor circuit contact, the four fire demonstration devices are spliced into a circular fire demonstration platform and are conveniently arranged in a fire demonstration venue, the fire demonstration circuit and a scene arrangement structure corresponding to a fire occurrence scene are arranged on the fire demonstration devices, the fire occurrence scene is demonstrated through the fire demonstration circuit, a real fire occurrence environment is simulated through the scene arrangement structure corresponding to the fire occurrence scene, the fire demonstration platform is more visual and convenient, the scenes of electrical fires of different types are completely demonstrated, and the fire demonstration platform plays roles in warning and education for the public so as to improve the safety consciousness of preventing fires of the public in society.

Further, fire demonstration circuit includes main control unit, computer, AC/DC converting circuit, the interactive operation module that a plurality of personnel perception sensor, a plurality of button are constituteed and the light effect control module that a plurality of kind of lamp is constituteed, main control unit passes through AC/DC converting circuit and is connected with the three-phase output port of block terminal, display screen and computer are connected with the three-phase output port of block terminal respectively, and the display screen passes through the HDMI interface and is connected with the computer, and the computer passes through RS485 communication mode and is connected with main control unit, personnel perception sensor, interactive operation module and light effect control module all are connected with main control unit.

Furthermore, the scene of fire occurrence is a kitchen scene, the fire demonstration circuit demonstrates that the line is overloaded, a first simulation socket is arranged in the kitchen scene, each jack on the first simulation socket is connected with a kitchen electrical appliance model, the interactive operation module comprises a power button and a first start button, a power button is correspondingly arranged in front of each kitchen electrical appliance model on the first simulation socket, a first start button is also arranged on the first simulation socket, each power button and the first start button are connected with an IO control port of the main controller, the lighting effect control module comprises a first line lamp strip, a wall surface lamp strip, a desktop lamp strip and a first high-frequency white lamp, a first line lamp strip is arranged between the first simulation socket and a first socket on the left baffle or the right baffle, a first socket small lamp is arranged on the first socket, the first simulation socket is connected with the first socket, a wall surface lamp strip is arranged on the left baffle or the right baffle, a first high-frequency white lamp is arranged around the jack of the first simulation socket, a desktop lamp strip is arranged on the table board where the first simulation socket is arranged, and the first socket small lamp, the first circuit lamp strip, the wall surface lamp strip, the desktop lamp strip and the first high-frequency white lamp are respectively connected with an IO control port of the main controller; the first temperature demonstration lamp belt that the lamp belt from the bottom up of still setting up the different colours of four sections splices in proper order and forms on the mesa of first simulation row of inserting, first temperature demonstration lamp belt is connected with main control unit's IO control port.

Furthermore, the scene of the fire disaster is a living room scene, the fire disaster demonstration circuit demonstrates the short circuit of the circuit, arrange the electrical apparatus model of the living room, first human body model and second simulation socket in the scene of the living room, the said interdynamic operating module includes second start button and material button, every jack connects a second socket on the second simulation socket, the second simulation socket sets up a material button in front of every second socket correspondingly, set up the second start button on the second simulation socket, every material button and second start button are connected with IO control port of the master controller; light effect control module includes second circuit lamp area, first little man lamp, second socket little lamp and high frequency yellow light set up on every second socket, set up first little man lamp on the first human model, second simulation is inserted between row and the first socket on left baffle or the right baffle, is set up second circuit lamp area between the first socket on sitting room electrical apparatus model and left baffle or the right baffle, and second circuit lamp area, first little man lamp, second socket little lamp and high frequency IO yellow light are equallyd divide and are do not connected with main control unit's main control port.

Furthermore, the scene of fire occurrence is a bathroom scene, the electric leakage of the fire demonstration circuit is demonstrated, a bathroom product model and a second human body model are arranged in the bathroom scene, the bathroom product model comprises a shower head, a bathtub and a washbasin, the interactive operation module comprises a shower head key and a third start key, the light effect control module comprises a shower head lamp, a water column lamp, a third line lamp strip, a third socket small lamp, a table lamp, a second high-frequency white lamp and a ground small lamp, the shower head is provided with the shower head lamp and the shower head key, the table surface around the shower head is provided with the water column lamp, the third line lamp strip is arranged between the first socket on the left baffle or the right baffle and the distribution box, the third socket small lamp is arranged on the first socket on the left baffle or the right baffle, the table surface lamp and the third start key are arranged on the table surface of the bathroom product model, a second high-frequency white lamp and a ground small lamp are arranged on the table board around the second human body model, and a shower button, a third start button, a shower lamp, a water column lamp, a third line lamp strip, a third socket small lamp, a table lamp, a second high-frequency white lamp and a ground small lamp are respectively connected with an IO control port of the main controller; and a cam motor is arranged in the second human body model and is connected with an IO control port of the main controller.

Furthermore, the scene of fire occurrence is a bedroom scene, the fire demonstration circuit demonstrates that the circuit is in poor contact, a bedroom electric appliance model, a third human body model and a third simulation socket are arranged in the bedroom scene, the interactive operation module comprises a fourth start key and a contact key, each jack on the third simulation socket is connected with a third socket, a contact key is correspondingly arranged in front of each third socket on the third simulation socket, the fourth start key is further arranged on the third simulation socket, and each contact key and each fourth start key are connected with an IO control port of the main controller; the light effect control module comprises a fourth circuit light strip, a second small lamp, a fourth socket small lamp and a third high-frequency white lamp, the fourth socket small lamp and the third high-frequency white lamp are arranged on each third socket, the second small lamp is arranged on the third human body model, the fourth circuit light strip is arranged between the third simulation socket and the first socket on the left baffle or the right baffle, and between the bedroom electrical appliance model and the first socket on the left baffle or the right baffle, and the fourth circuit light strip, the second small lamp, the fourth socket small lamp and the third high-frequency white lamp are respectively connected with an IO control port of the main controller; and a fourth temperature demonstration lamp strip formed by sequentially splicing four sections of lamp strips with different colors from bottom to top is further arranged on the table board where the third simulation socket is located, and the second temperature demonstration lamp strip is connected with an IO control port of the main controller.

Further, the human perception sensor is of the type HC-SR 501.

Further, the included angle between the two straight edges in the top view direction of the base is 90 degrees.

Furthermore, the base comprises a bottom plate, an arc-shaped baffle plate, a supporting plate and supporting rods, the arc-shaped baffle plate is vertical to the ground, the upper part of the arc-shaped baffle plate is fixedly connected with the supporting plate, the bottom of the arc-shaped baffle plate is fixedly connected with the bottom plate, the supporting plate and the bottom plate are both parallel to the ground, the supporting plate and the bottom plate are both in a fan shape and form a hollow fan-shaped frame with the arc-shaped baffle plate, a plurality of vertically upward supporting rods are fixedly connected on two right-angle edges of a fan-shaped area on the supporting plate, the left baffle plate is fixedly connected with the supporting rods on the right-angle edge of one side of the fan-shaped area on the supporting plate, the right baffle plate is fixedly connected with the supporting rods on the right-angle edge of the other side of the fan-shaped area on the supporting plate, the front baffle is located at the joint of two right-angle sides of a fan-shaped area on the supporting plate, the left side of the front baffle is fixedly connected with the left baffle, and the right side of the front baffle is fixedly connected with the right baffle.

Furthermore, a plurality of rollers are arranged below the bottom plate.

The utility model has the advantages that:

(1) the fire demonstration platform is provided with four fire demonstration devices for respectively demonstrating line overload, line short circuit, circuit leakage and poor circuit contact, the four fire demonstration devices are spliced into a circular fire demonstration platform and are conveniently arranged in a fire demonstration venue, the fire demonstration circuit and a scene arrangement structure corresponding to a fire occurrence scene are arranged on the fire demonstration devices, the fire occurrence scene is demonstrated through the fire demonstration circuit, a real fire occurrence environment is simulated through the scene arrangement structure corresponding to the fire occurrence scene, the fire demonstration platform is more visual and convenient, the scenes of electrical fires of different types are completely demonstrated, and the fire demonstration platform plays roles in warning and education for the public so as to improve the safety consciousness of preventing fires of the public in society.

(2) The fire demonstration system is provided with a fire demonstration circuit, the distribution box supplies power to the main controller and a peripheral circuit of the main controller through the AC/DC conversion circuit, the personnel are sensed through the personnel sensing sensor, interaction between the personnel and the demonstration device is carried out through the interactive operation module, and the fire scene is intuitively demonstrated through controlling the lighting effect by the lighting effect control module.

(3) The fire disaster demonstration circuit demonstration.

Drawings

FIG. 1 is a schematic structural diagram of a fire demonstration table according to an embodiment of the present invention;

FIG. 2 is an exploded view of a fire presentation station according to an embodiment of the present invention;

FIG. 3 is a top view of a fire presentation station according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of one fire demonstration apparatus of a fire demonstration table according to an embodiment of the present invention;

FIG. 5 is a schematic circuit diagram of one fire demonstration apparatus of a fire demonstration table according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a base of a fire demonstration apparatus in a fire demonstration table according to an embodiment of the present invention;

FIG. 7 is a schematic view of another fire demonstration apparatus of a fire demonstration table according to an embodiment of the present invention;

FIG. 8 is a schematic circuit diagram of another fire demonstration apparatus of a fire demonstration station according to an embodiment of the present invention;

FIG. 9 is a schematic view of another fire demonstration apparatus for a fire demonstration table according to an embodiment of the present invention;

FIG. 10 is a schematic circuit diagram of another fire demonstration apparatus of a fire demonstration table according to an embodiment of the present invention;

FIG. 11 is a schematic view of another fire demonstration apparatus of a fire demonstration table according to an embodiment of the present invention;

fig. 12 is a schematic circuit diagram of another fire demonstration apparatus of a fire demonstration table according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, a fire demonstration table comprises four fire demonstration devices 1, each fire demonstration device 1 is in a quarter-circle shape when viewed from the top, the four fire demonstration devices 1 are spliced into a circular fire demonstration table, the four fire demonstration devices 1 respectively demonstrate line overload, line short circuit, circuit leakage and poor circuit contact, as shown in fig. 4 to 5, each fire demonstration device 1 comprises a base 101, a left baffle plate 102, a right baffle plate 103 and a front baffle plate 104 which are arranged on the base 101, the base 101 is in a sector shape when viewed from the top, and fire demonstration circuits and scene arrangement structures corresponding to fire occurrence scenes are arranged in a space defined by the left baffle plate 102, the right baffle plate 103 and the front baffle plate 104 and the base 101; set up block terminal 105 on the preceding baffle 104, the top of block terminal 105 sets up display screen 106, and left baffle 102, right baffle 103 and preceding baffle 104 all set up wire casing 107, all set up first socket 108 on left baffle 102 and the right baffle 103, and block terminal 105's power output port passes through the cable and is connected with first socket 108, and the cable is walked the line in wire casing 107.

As shown in fig. 6, the base 101 includes a bottom plate 1011, an arc-shaped baffle 1012, a support plate 1013 and support rods 1014, the arc-shaped baffle 1012 is vertical to the ground, the upper part of the arc-shaped baffle 1012 is fixedly connected with the support plate 1013, the bottom of the arc-shaped baffle 1012 is fixedly connected with the bottom plate 1011, a plurality of rollers 1015 are arranged below the bottom plate 1011, the support plate 1013 and the bottom plate 1011 are both parallel to the ground, the support plate 1013 and the bottom plate 1011 are both in a fan shape and form a hollow fan-shaped frame with the arc-shaped baffle 1012, a plurality of upright support rods 1014 are fixedly connected with two right-angle edges of a fan-shaped area on the support plate 1013, the left baffle 102 is fixedly connected with the support rods 1014 on one right-angle edge of the fan-shaped area on the support plate 1013, the right baffle 103 is fixedly connected with the support rods 1014 on the other side of the fan-shaped area on the support plate 1013, the front baffle 104 is located at the junction of the two right-angle edges of the fan-shaped area on the support plate 1013, the left side of the front baffle 104 is fixedly connected with the left baffle 102, and the right side of the front baffle 104 is fixedly connected with the right baffle 103.

As shown in fig. 5, the fire demonstration circuit includes a main controller 201, an AC/DC conversion circuit 202, a person perception sensor 203, an interactive operation module 204, and a light effect control module 205, the main controller 201 is connected to a three-phase output port of the distribution box 105 through the AC/DC conversion circuit 202, and the display screen 106, the person perception sensor 203, the interactive operation module 204, and the light effect control module 205 are all connected to the main controller 201. The model of the people awareness sensor 203 is HC-SR 501.

With continuing reference to fig. 4 and 5, one of the four fire demonstration apparatuses 1 is used for demonstrating line overload, the scene of fire occurrence is a kitchen scene, and the fire demonstration circuit demonstrates line overload, so as to establish the concept of safe power utilization for people, and correctly use the mobile socket, thereby avoiding the situation that a plurality of high-power electrical devices are simultaneously used in one circuit, which results in circuit overload and causes fire. A first simulation socket strip 4 is arranged in the kitchen scene, each jack on the first simulation socket strip 4 is connected with a kitchen electrical appliance model 5, an interactive operation module 204 comprises a power key (not shown) and a first start key (not shown), a power key is correspondingly arranged in front of each kitchen electrical appliance model 5 on the first simulation socket strip 4, a first start key is also arranged on the first simulation socket strip 4, each power key and the first start key are connected with an IO control port of the main controller 201, a lighting effect control module 205 comprises a first circuit lamp strip (not shown), a wall surface lamp strip (not shown), a desktop lamp strip (not shown) and a first high-frequency white lamp (not shown), a first circuit lamp strip is arranged between the first simulation socket strip 4 and a first socket 108 on the left baffle plate 102 or the right baffle plate 103, a first socket small lamp is arranged on the first socket 108, the first simulation socket bank 4 is connected with a first socket 108, a wall surface lamp strip is arranged on the left baffle plate 102 or the right baffle plate 103, a first high-frequency white lamp is arranged around a jack of the first simulation socket bank 4, a desktop lamp strip is arranged on a table board where the first simulation socket bank 4 is located, and a first socket small lamp, a first circuit lamp strip, the wall surface lamp strip, the desktop lamp strip and the first high-frequency white lamp are respectively connected with an IO control port of the main controller 201; the first temperature demonstration lamp strip that the lamp strip from the bottom up that still sets up the different colours of four sections was spliced in proper order on the mesa of first simulation row of inserting 4, first temperature demonstration lamp strip is connected with main control unit 201's IO control port.

Each first simulated socket 4 is provided with a kitchen appliance model 5 which does not exceed the rated current of the first simulated socket 4. For better differentiation, under the condition that each circuit runs no more than two low-power (refrigerator, electric cooker and juicer) household appliances or 1 high-power (oven and hot water kettle) kitchen appliance model 5, a first socket small lamp, a first circuit lamp strip, a wall surface lamp strip and a desktop lamp strip in the circuit emit green halos. In the case of more than two low-power or 1 high-power household appliances in the circuit, the circuit presents a line overload and a fire situation.

Wherein:

the low-power household appliance is represented by green and small buttons, and the weight is less than or equal to 500W

The high-power household appliance is represented by red and big buttons, and the weight is more than 500W;

in actual use, a plurality of power keys are arranged, the power keys correspond to household appliances with different powers, a corresponding power size is set for each power button, the household appliance with the power size is connected into a circuit when the power keys are pressed down, and meanwhile, a kitchen appliance model 5 matched with the power corresponding to the power keys is correspondingly arranged on the first simulation socket 4.

When 1500w household electrical appliances were gone up to operation on the current circuit, first circuit lamp area in the circuit was become red (colour gradual change) by green gradually, and the condition of simulation cable temperature rising, peripheral first temperature demonstration lamp area, according to the condition of colour gradual change, from the lamp area of lighting up in proper order to last, show the temperature value situation of change.

When the power of the running household appliance is too high, after the first socket 108 reaches a certain temperature, a short-circuit fault also occurs at a certain weak link, the first line lamp between the first simulation socket bank 4 and the first socket 108 emits red light, under the condition that a manikin is connected into the demonstration circuit, an alarm lamp arranged on the manikin is lightened and stroboscopic, the body part of the manikin displays a skeleton shape in about 3-5 seconds of flickering to represent electric shock, meanwhile, a short-circuit fault is generated at a certain weak link of the first simulation socket bank 4 and peripheral cables, a first high-frequency white lamp arranged around a jack of the first simulation socket bank 4 emits striking high-frequency white light (white light under high-frequency flash 3), the whole circuit is powered off (no light display of the socket bank, a wall surface lamp strip becomes red (combustion state)), then the desktop lamp strip becomes red to represent that the first simulation socket bank 4 and the periphery thereof are ignited, and then rapidly spread to other homes and equipment. The fire spreads to the surrounding combustibles, centered on the short-circuit point on the first simulated socket 4. The first temperature demonstration lamp strip on the table top (the temperature is gradually and rapidly increased from green-yellow-orange-red). The entire scene is lit red (indicating a fire). Finally, the whole room is filled with red halos, and the whole house catches fire. In the time of about 10 seconds after the scene integral simulation is burnt, the display screen 106 plays the mechanism of electric circuit overload generation, electric fire hazard and correct use mode and method.

It should be noted that the present invention does not protect the programming and the logic process of the method, but only protects the hardware circuit architecture and the mechanical structure, and provides the demonstration apparatus having the hardware circuit architecture and the mechanical structure.

As shown in fig. 7 and 8, another of the four fire demonstration apparatuses 1 is used for demonstrating a line short circuit, the scene of fire occurrence is a living room scene, and the fire demonstration circuit demonstrates the line short circuit, in order to simulate the situation that a naked metal object without safety protection is inserted into a socket, which causes a personal electric shock accident, or causes a circuit short circuit to cause an electrical fire accident. The electric appliance model 6, the first human body model 7 and the second simulation socket are arranged in the living room scene, the interaction operation module 204 comprises a second start key (not shown) and a material key (not shown), each jack on the second simulation socket is connected with one second socket 9, a material key is correspondingly arranged in front of each second socket 9 on the second simulation socket, a second start key is further arranged on the second simulation socket, and each material key and the second start key are connected with an IO control port of the main controller 201; the light effect control module 205 includes a second circuit light strip (not shown), a first small lamp (not shown), a second socket small lamp (not shown), and a high-frequency yellow lamp (not shown), the second socket small lamp and the high-frequency yellow lamp are disposed on each second socket 9, the first human body model 7 is provided with the first small lamp, the second simulation socket is disposed between the first sockets 108 on the left baffle plate 102 or the right baffle plate 103 and between the first sockets 108 on the living room electrical appliance model 6 and the left baffle plate 102 or the right baffle plate 103, the second circuit light strip, the first small lamp, the second socket small lamp, and the high-frequency yellow lamp are all connected to IO control ports of the main controller 201. The material button has a plurality ofly, and every material button shows that the device of a material inserts second socket 9, and the material button can show carbomorphism material, metal material and insulating material etc. according to practical application, sets up the material button that shows different materials, indicates the material that this material button represents through pressing the material button and inserts second socket 9 to the conflagration that the simulation short-circuit fault triggered.

When the second start button is pressed, the second socket 9 is powered on, and the second socket small lamp is green. When the metal material and the carbonized material are inserted into the electrified socket, namely a certain material key is pressed, the high-frequency yellow lamp on the corresponding second socket 9 firstly flickers for 2 times by the yellow lamp, and then the small lamp of the second socket at the position next to the yellow lamp is changed into red. The first small human light on the first manikin 7 is lit (yellow, strobed) for around 3-5 seconds of flashing. The circuit is simulated to generate heat, white light flickers at a short-circuit point, namely at a position of a second socket small lamp corresponding to a pressed material key after 1 second, combustible substances around a second socket 9 can ignite red light, namely surrounding second socket small lamps, a second line lamp strip and the like, and a circuit breaker of a distribution box 105 can make a trip protection action sound. The simulated fire is spread to the surrounding combustibles, centred on the second socket 9. Eventually the entire room is filled with flames (room-to-room red light). After the skeleton shape (representing the electric shock) is displayed on the body part of the first human body model 7, the display screen 106 displays the personal safety hazard caused by the accidental electric shock and the correct safe electricity utilization mode and method, and the skeleton shape can be realized by arranging a display fire skeleton-shaped lamp on the first human body model 7. And in the time about 10 seconds after the scene is integrally burnt, the mechanism of short circuit generation of the display screen 106 playing circuit, electrical fire hazard, and a correct use mode and method.

As shown in fig. 9 and 10, another of the four fire demonstration devices 1 is used for demonstrating electric leakage of a circuit, the scene of fire occurrence is a bathroom scene, the fire demonstration circuit demonstrates electric leakage of the circuit, and simulation water or water vapor enters a socket, under a wet path, insulation failure occurs at a cable connection part and an insulation weak link, so that electric leakage or short circuit is caused, and further, a personal electric shock accident or an electric fire accident is caused. The bathroom product model 10 and the second human body model 11 are arranged in the bathroom scene, the bathroom product model 10 comprises a shower head, a bathtub and a washbasin, the interactive operation module 204 comprises a shower head key (not shown) and a third opening key (not shown), the light effect control module 205 comprises a shower head lamp (not shown), a water column lamp (not shown), a third line lamp strip (not shown), a third socket small lamp (not shown), a table lamp (not shown), a second high-frequency white lamp (not shown) and a ground small lamp (not shown), the shower head lamp and the shower head key are arranged on the shower head, the water column lamp is arranged on a table surface around the shower head, the third line lamp strip is arranged between the first socket 108 on the left baffle plate 102 or the right baffle plate 103 and the distribution box 105, the third socket small lamp is arranged on the first socket 108 on the left baffle plate 102 or the right baffle plate 103, the table surface lamp and the third opening key are arranged on the table surface on which the bathroom product model 10 is arranged, a second high-frequency white lamp and a ground small lamp are arranged on the table board around the second human body model 11, and a shower button, a third start button, a shower lamp, a water column lamp, a third line lamp strip, a third socket small lamp, a table lamp, a second high-frequency white lamp and a ground small lamp are respectively connected with an IO control port of the main controller 201; and a cam motor is arranged in the second human body model 11 and is connected with an IO control port of the main controller 201.

The simulation children play water in the bathroom, and water is sprayed into wall sockets or other electrical equipment unintentionally, so that the electrical equipment leaks electricity, and safety accidents such as personal electric shock or short circuit are caused. When the shower does not spray water to the first socket 108, the first socket 108 does not leak electricity. Under the normal electrification condition, the third socket small lamp corresponding to the first socket 108 is green, and the third line lamp strip is green. When the water spray to the first socket 108 is started, the first socket 108 starts to simulate the occurrence of short circuit (L, N is turned on in the water path) and leakage (L, PE is turned on in the water path), the third socket small lamp corresponding to the first socket 108 turns yellow, and the third street lamp strip connected to the third socket 15 turns yellow.

When a third start key on the table top is pressed, the circuit is electrified, the shower head on the table top is taken down, and when fingers touch the shower head key, the shower head lamp begins to twinkle, and a nearby 'passive water flowing device', namely a water column lamp, emits blue light halo to form a light column shape (simulating water source flowing). When the shower switch is pressed and simultaneously aligns to the first socket 108, the port of the first socket 108 receives a light source signal transmitted by the shower, the third socket small lamp corresponding to the first socket 108 starts to emit red halo and stroboscopic white light 3 is emitted (the socket circuit is short-circuited due to water inflow), and the third street lamp turns red. Meanwhile, a small ground lamp in front of the second human body model 11 above the table board emits blue light, the blue light is mapped onto the foot of the second human body model 11, the foot of the second human body model 11 is simulated to contact water, a lightning symbol (simulated electric shock) is emitted by high-frequency flickering white light of a second high-frequency white lamp, the lightning symbol can be realized by drawing a lightning shape on the second high-frequency white lamp, the second human body model 11 standing on the ground begins to simulate the electric shock to fall to the ground, the second human body model 11 falls to the ground by controlling whether the cam motor is powered on or not through the control module, and the action is realized when the power is powered on, so that the electric shock to fall to the ground is simulated. If the switch of the distribution box 105 is turned off at this time, the power supply is cut off, the second human body model 11 is not operated any more, and power-off protection is performed after an electric shock is simulated. The display screen 106 plays the mechanism of electric leakage induced shock, the electrical fire hazard and the correct preventive measures and methods within 10 seconds after the scene integrally simulates the electric leakage shock. Wherein, first socket 108 receives the light source signal and can be through setting up optical signal sensor, and optical signal sensor is connected with control module's IO control port, and like this when there is optical signal to get into first socket 108 inside, optical signal sensor gathers the signal, and main control unit 201 controls the third socket small lamp and gives off red halo and stroboscopic white light 3 down and control third street lamp area and turn red simultaneously.

As shown in fig. 11 and 12, still another one of the four fire demonstration apparatuses 1 is used to demonstrate a bad contact of the electric circuit, the scene of fire occurrence is a bedroom scene, the fire demonstration circuit demonstrates that the circuit has poor contact, aims to simulate the untight connection of a plug and a socket, the situation of poor contact at the joint and local high temperature are generated, thereby causing the situation of electric fire accident, a bedroom electric appliance model 12, a third human body model 13 and a third simulation socket are arranged in the bedroom scene, the interactive operation module 204 comprises a fourth start key (not shown) and a contact key (not shown), each jack on the third analog socket is connected with one third socket 15, a contact key is correspondingly arranged in front of each third socket 15 on the third analog socket, a fourth start key is further arranged on the third analog socket, and each contact key and the fourth start key are connected with an IO control port of the main controller 201; the light effect control module 205 comprises a fourth line light strip (not shown), a second small lamp (not shown), a fourth socket small lamp (not shown) and a third high-frequency white lamp (not shown), the fourth socket small lamp and the third high-frequency white lamp are arranged on each third socket 15, the second small lamp is arranged on the third manikin 13, the fourth line light strip is arranged between the third simulation socket and the first socket 108 on the left baffle plate 102 or the right baffle plate 103, and between the bedroom electrical appliance model 12 and the first socket 108 on the left baffle plate 102 or the right baffle plate 103, and the fourth line light strip, the second small lamp, the fourth socket small lamp and the third high-frequency white lamp are respectively connected with an IO control port of the main controller 201; and a fourth temperature demonstration lamp strip formed by sequentially splicing four sections of lamp strips with different colors from bottom to top is further arranged on the table board where the third simulation socket is located, and the second temperature demonstration lamp strip is connected with the IO control port of the main controller 201. The contact keys simulate the insertion of a plug into the third socket 15 and the depression of one contact key indicates the plug on the third socket 15 at that location to access the circuit.

When the contact key is pressed, a plug which indicates the corresponding position of the contact key is inserted into the third socket 15, and during actual simulation, the plug is in poor contact with the third socket 15, abnormal high temperature caused by fault electric arc is generated by pressing the poor contact point of the contact key simulation circuit, at the moment, third high-frequency white light stroboscopic light (fault electric arc is indicated under the white light flash 3) corresponding to the joint of the plug and the third socket 15 is generated, at the moment, the second mini lamp on the third human body model 13 is lightened (yellow light and stroboscopic light), and in the time of flashing for about 3-5 seconds, the body part of the third human body model 13 displays a skeleton shape (electric shock is indicated). After 5 seconds, the third socket 15 ignites surrounding combustible substances, namely other third high-frequency white lamps around the third socket 15 flicker, and the fourth street lamp strip and the fourth socket small lamp turn red, so that the fire rapidly spreads to other houses and equipment. And the second temperature demonstration lamp strip on the table board sequentially lights up the lamp strip from bottom to top, and the lamp strip changes from green to yellow to orange to red to show that the temperature gradually and rapidly rises. The entire scene is lit red (indicating a fire). When the scene is simulated to burn for 10 seconds or so, the display screen 106 plays a high-temperature ignition mechanism and electrical fire hazard caused by poor contact and a correct preventive measure and method.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A fire demonstration table is characterized by comprising four fire demonstration devices, wherein each fire demonstration device is in a quarter circle shape when viewed from the overlooking direction, the four fire demonstration devices are spliced into a circular fire demonstration table, the four fire demonstration devices respectively demonstrate line overload, line short circuit, circuit leakage and poor circuit contact, each fire demonstration device comprises a base, a left baffle, a right baffle and a front baffle, the left baffle, the right baffle and the front baffle are arranged on the base, the base is in a fan shape when viewed from the overlooking direction, and a fire demonstration circuit and a scene arrangement structure corresponding to a fire occurrence scene are arranged in a space defined by the left baffle, the right baffle and the front baffle and the base; set up the block terminal on the preceding baffle, the top of block terminal sets up the display screen, and left baffle, right baffle and preceding baffle all set up the wire casing, all set up first socket on left baffle and the right baffle, and the power output port of block terminal passes through the cable and is connected with first socket, and the cable is walked the line in the wire casing.

2. A fire presentation table as claimed in claim 1, wherein the fire presentation circuit comprises a main controller, a computer, an AC/DC conversion circuit, a plurality of personnel perception sensors, an interactive operation module consisting of a plurality of keys, and a light effect control module consisting of a plurality of types of lamps, the main controller is connected with a three-phase output port of the distribution box through the AC/DC conversion circuit, the display screen and the computer are respectively connected with the three-phase output port of the distribution box, the display screen is connected with the computer through an HDMI interface, the computer is connected with the main controller through an RS485 communication mode, and the personnel perception sensors, the interactive operation module, and the light effect control module are all connected with the main controller.

3. A fire demonstration table according to claim 2, wherein the fire scene is a kitchen scene, the fire demonstration circuit is overloaded, a first simulation socket is arranged in the kitchen scene, each jack on the first simulation socket is connected with a kitchen electrical model, the interactive operation module comprises a power button and a first start button, a power button is correspondingly arranged in front of each kitchen electrical model on the first simulation socket, the first simulation socket is also provided with a first start button, each power button and the first start button are connected with an IO control port of the main controller, the light effect control module comprises a first circuit light strip, a wall light strip, a desktop light strip and a first high-frequency white light, a first circuit light strip is arranged between the first simulation socket and a first socket on the left baffle or the right baffle, a first socket small light is arranged on the first socket, the first simulation socket strip is connected with a first socket, a wall surface lamp strip is arranged on the left baffle or the right baffle, a first high-frequency white lamp is arranged around the jack of the first simulation socket strip, a desktop lamp strip is arranged on the table surface where the first simulation socket strip is located, and the first socket small lamp, the first circuit lamp strip, the wall surface lamp strip, the desktop lamp strip and the first high-frequency white lamp are respectively connected with an IO control port of the main controller; the first temperature demonstration lamp belt that the lamp belt from the bottom up of still setting up the different colours of four sections splices in proper order and forms on the mesa of first simulation row of inserting, first temperature demonstration lamp belt is connected with main control unit's IO control port.

4. A fire presentation table according to claim 2, wherein the fire occurrence scenario is a living room scenario, the fire presentation circuit is short-circuited, a living room electrical appliance model, a first human body model and a second simulation socket are arranged in the living room scenario, the interactive operation module comprises a second start button and a material button, each jack on the second simulation socket is connected with a second socket, a material button is correspondingly arranged in front of each second socket on the second simulation socket, a second start button is further arranged on the second simulation socket, and each material button and the second start button are connected with an IO control port of the main controller; light effect control module includes second circuit lamp area, first little man lamp, second socket little lamp and high frequency yellow light set up on every second socket, set up first little man lamp on the first human model, second simulation is inserted between row and the first socket on left baffle or the right baffle, is set up second circuit lamp area between the first socket on sitting room electrical apparatus model and left baffle or the right baffle, and second circuit lamp area, first little man lamp, second socket little lamp and high frequency IO yellow light are equallyd divide and are do not connected with main control unit's main control port.

5. A fire presentation table as claimed in claim 2, wherein the fire occurrence scenario is a bathroom scenario, the fire presentation circuit is configured to show leakage of electricity, the bathroom product model and the second human body model are disposed in the bathroom scenario, the bathroom product model includes a shower head, a bathtub and a sink, the interactive operation module includes a shower head button and a third start button, the lighting effect control module includes a shower head lamp, a water column lamp, a third line lamp strip, a third socket small lamp, a table lamp, a second high frequency white lamp and a ground small lamp, the shower head lamp and the shower head button are disposed on the shower head, the water column lamp is disposed on the table around the shower head, the third line lamp strip is disposed between the first socket on the left baffle or the right baffle and the distribution box, the third socket small lamp is disposed on the first socket on the left baffle or the right baffle, the table lamp and the third start button are disposed on the table where the bathroom product model is disposed, a second high-frequency white lamp and a ground small lamp are arranged on the table board around the second human body model, and a shower button, a third start button, a shower lamp, a water column lamp, a third line lamp strip, a third socket small lamp, a table lamp, a second high-frequency white lamp and a ground small lamp are respectively connected with an IO control port of the main controller; and a cam motor is arranged in the second human body model and is connected with an IO control port of the main controller.

6. A fire demonstration table according to claim 2, wherein the fire occurrence scene is a bedroom scene, the fire demonstration circuit demonstrates that the circuit is in poor contact, a bedroom electrical appliance model, a third human body model and a third simulation socket are arranged in the bedroom scene, the interactive operation module comprises a fourth start key and a contact key, each jack on the third simulation socket is connected with a third socket, a contact key is correspondingly arranged in front of each third socket on the third simulation socket, a fourth start key is further arranged on the third simulation socket, and each contact key and each fourth start key are connected with an IO control port of the main controller; the light effect control module comprises a fourth circuit light strip, a second small lamp, a fourth socket small lamp and a third high-frequency white lamp, the fourth socket small lamp and the third high-frequency white lamp are arranged on each third socket, the second small lamp is arranged on the third human body model, the fourth circuit light strip is arranged between the third simulation socket and the first socket on the left baffle or the right baffle, and between the bedroom electrical appliance model and the first socket on the left baffle or the right baffle, and the fourth circuit light strip, the second small lamp, the fourth socket small lamp and the third high-frequency white lamp are respectively connected with an IO control port of the main controller; and a fourth temperature demonstration lamp strip formed by sequentially splicing four sections of lamp strips with different colors from bottom to top is further arranged on the table board where the third simulation socket is located, and the second temperature demonstration lamp strip is connected with an IO control port of the main controller.

7. A fire presentation station as claimed in claim 2, wherein the human perception sensor is of the type HC-SR 501.

8. A fire presentation table as claimed in claim 1, wherein the base includes two straight sides at an angle of 90 ° when viewed from above.

9. A fire demonstration table according to claim 1, wherein the base comprises a bottom plate, an arc-shaped baffle, a support plate and support rods, the arc-shaped baffle is vertical to the ground, the upper part of the arc-shaped baffle is fixedly connected with the support plate, the bottom part of the arc-shaped baffle is fixedly connected with the bottom plate, the support plate and the bottom plate are both parallel to the ground, the support plate and the bottom plate are both fan-shaped and form a hollow fan-shaped frame with the arc-shaped baffle, a plurality of upright upward support rods are fixedly connected on two right-angle edges of a fan-shaped area on the support plate, a left baffle is fixedly connected with the support rods on one right-angle edge of the fan-shaped area on the support plate, a right baffle is fixedly connected with the support rods on the other right-angle edge of the fan-shaped area on the support plate, the front baffle is located at the junction of the two right-angle edges of the fan-shaped area on the support plate, and the left side of the front baffle is fixedly connected with the left baffle, the right side of the front baffle is fixedly connected with the right baffle.

10. A fire presentation station as claimed in claim 9, wherein a plurality of rollers are provided beneath the base plate.

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