CN213815237U

CN213815237U - Primary school's science presentation device that puts out a fire

Info

Publication number: CN213815237U
Application number: CN202022691292.1U
Authority: CN
Inventors: 樊嵘浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-27
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a presentation device that puts out a fire of primary school's science, comprising a base plate, the connection is equipped with the hydraulic stem on the bottom plate, the connection is equipped with the workstation on the hydraulic stem, the connection is equipped with the experimental box on the workstation, the connection is equipped with three baffle in the experimental box, the baffle divides the experimental box into demonstration case one, demonstration case two, demonstration case three and demonstration case four, it has the case of lighting a fire all to be equipped with in demonstration case one, demonstration case two, demonstration case three and the demonstration case four tops respectively connect and be equipped with water tank, dry powder case, foam case and sand box, water tank, dry powder case, foam case and sand box below all connect and be equipped with the connecting pipe, the connecting pipe extends to demonstration case one, demonstration case two, demonstration case three and demonstration case four and connect and establish high pressure nozzle. Compared with the prior art, the utility model the advantage lies in: novel structure, reasonable in design, more directly perceived, teaching effect is good.

Description

Primary school's science presentation device that puts out a fire

Technical Field

The utility model relates to a teaching equipment technical field specifically indicates a primary school's science presentation device that puts out a fire.

Background

In the teaching of primary school science course, teachers need to explain the knowledge of burning and a fire extinguishing method, burning is a heat-releasing and light-emitting chemical reaction, the reaction process is extremely complex, the chain reaction of free radicals is the essence of the burning reaction, light and heat are physical phenomena generated in the burning process, combustible materials have certain initial energy and reach certain temperature and concentration to generate a fast enough reaction speed to catch fire, teachers need to explain the method of extinguishing fire for students, and the principle and the method of extinguishing fire are explained through the burning principle, so that the fire prevention capability of primary school students is improved. However, the teaching about putting out a fire of current primary school science course is all only through boring theory of geography explanation, can't show the principle of burning and putting out a fire through the model, can't attract students to pay attention to, leads to the teaching effect not good, consequently, needs a primary school science presentation device that puts out a fire.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical problem, provide a novel structure, reasonable in design, more directly perceived, teaching effect is good a primary school's science presentation device that puts out a fire.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a presentation device that puts out a fire of primary school's science, includes the bottom plate, the connection of bottom plate below is equipped with the supporting leg, the connection of supporting leg below is equipped with the universal wheel, the connection of bottom plate below is equipped with only position mechanism, the connection is equipped with the hydraulic stem on the bottom plate, the connection is equipped with the workstation on the hydraulic stem, be equipped with the storage tank on the bottom plate, the connection is equipped with the experimental box on the workstation, the connection is equipped with three baffle in the experimental box, the baffle divides the experimental box into demonstration case one, demonstration case two, demonstration case three and demonstration case four, the experimental box front side is equipped with four chamber doors through hinge joint, all be equipped with some ignition box in demonstration case one, demonstration case two, demonstration case three and the demonstration case four, demonstration case one, demonstration case two, demonstration case three and demonstration case four tops are connected respectively and are equipped with water tank, dry powder case, foam case and sand box, water tank, demonstration case two, demonstration case three and sand box, The connecting pipes are connected and arranged below the dry powder box, the foam box and the sand box, extend into the first demonstration box, the second demonstration box, the third demonstration box and the fourth demonstration box respectively, and are connected with the high-pressure spray heads.

As an improvement, the stopping mechanism comprises a supporting column, a threaded column is connected and arranged below the supporting column, and an adjusting nut and a fixing block are sleeved on the threaded column.

As an improvement, a pushing handle is connected to one side of the workbench.

As an improvement, the box door is made of transparent and visible materials, and a handle is connected to the box door.

As an improvement, a control switch is connected to the connecting pipe.

After the structure more than adopting, the utility model has the advantages of it is following: the utility model discloses novel structure, and reasonable design, the setting of universal wheel can be with the light removal to suitable position of primary school's science presentation device that puts out a fire, it is more convenient, and is laborsaving, the setting of ending a position mechanism can be fixed primary school's science presentation device that puts out a fire at the assigned position, ensure its stability when the experiment, the height of workstation can be adjusted in the setting of hydraulic stem, make its different user demands of the user of more suitable different heights, it is more practical, the setting of storage tank can be put the required articles for use of experiment wherein, it is more convenient to take, different fire extinguishing material's setting can make the student select more excellent mode of putting out a fire through the contrast, strengthen student's knowledge of putting out a fire, the chamber door of transparent visual material can more audio-visually observe the condition of putting out a fire, and the practicality is better.

Drawings

Fig. 1 is a schematic structural view of the scientific fire-extinguishing demonstration device for primary schools.

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

Fig. 3 is a schematic structural view of the utility model of a scientific fire-extinguishing demonstration device for primary school in use state.

As shown in the figure: 1. the base plate, 2, the supporting leg, 3, the universal wheel, 4, the stop mechanism, 5, the hydraulic stem, 6, the workstation, 7, the storage tank, 8, the experimental box, 9, the baffle, 10, demonstration case one, 11, demonstration case two, 12, demonstration case three, 13, demonstration case four, 14, the hinge, 15, the chamber door, 16, the ignition box, 17, the water tank, 18, the dry powder case, 19, the foam case, 20, the sand box, 21, the connecting pipe, 22, the high pressure nozzle, 23, the support column, 24, the screw thread post, 25, adjusting nut, 26, the fixed block, 27, the pushing hands, 28, the handle, 29, control switch.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation configuration and operation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "provided", "mounted", "connected", and the like are to be understood in a broad sense, and for example, they may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected to the inside of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to the accompanying drawings 1-3, a presentation device that puts out a fire of primary school's science, including bottom plate 1, the connection of 1 below of bottom plate is equipped with supporting leg 2, the connection of 2 below of supporting leg is equipped with universal wheel 3, the connection of 1 below of bottom plate is equipped with and ends position mechanism 4, the connection is equipped with hydraulic stem 5 on the bottom plate 1, the connection is equipped with workstation 6 on the hydraulic stem 5, be equipped with storage tank 7 on the bottom plate 1, the connection is equipped with experimental box 8 on workstation 6, the connection is equipped with three baffle 9 in the experimental box 8, baffle 9 divides experimental box 8 into demonstration case one 10, demonstration case two 11, demonstration case three 12 and demonstration case four 13, experimental box 8 front side is equipped with four chamber doors 15 through hinge 14, all be equipped with ignition case 16 in demonstration case one 10, demonstration case two 11, demonstration case three 12 and the demonstration case four 13, demonstration case one 10, The demonstration box II 11, the demonstration box III 12 and the demonstration box IV 13 are respectively connected with a water tank 17, a dry powder box 18, a foam box 19 and a sand box 20, connecting pipes 21 are respectively connected and arranged below the water tank 17, the dry powder box 18, the foam box 19 and the sand box 20, and the connecting pipes 21 respectively extend into the demonstration box I10, the demonstration box II 11, the demonstration box III 12 and the demonstration box IV 13 and are connected with high-pressure spray heads 22.

Stop position mechanism 4 and include support column 23, support column 23 below is connected and is equipped with screw thread post 24, cup joint on the screw thread post 24 and be equipped with adjusting nut 25 and fixed block 26, 6 one side of workstation are connected and are equipped with pushing hands 27, chamber door 15 adopts transparent visual material to make, the connection is equipped with handle 28 on the chamber door 15, the connection is equipped with control switch 29 on the connecting pipe 21.

When the utility model is implemented specifically, the ignition box 16 is made of transparent flame-proof material, which is more convenient for observation, the primary scientific fire-extinguishing demonstration device is pushed to a proper position by the pushing handle 27, then the adjusting nut 25 is screwed to move the fixed block 26 downwards to fix the primary scientific fire-extinguishing demonstration device, a certain amount of water, dry powder, fire-extinguishing foam and fine sand are respectively injected into the water tank 17, the dry powder tank 18, the foam tank 19 and the sand tank 20, combustible material is injected into the ignition box 16 and ignited, then the box door 15 is opened by the handle 28, the ignition box 16 is respectively placed into the first demonstration box 10, the second demonstration box 11, the third demonstration box 12 and the fourth demonstration box 13, the box door 15 is closed, the control switch 20 is opened, different fire-extinguishing materials are used for extinguishing fire to an ignition point, and the fire-extinguishing effects of different fire-extinguishing materials are observed, which is more intuitive, the demonstration effect is better, and the student has deep memory, the practicability is good.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a primary school's science presentation device that puts out a fire, includes bottom plate (1), its characterized in that: the multifunctional demonstration box is characterized in that supporting legs (2) are connected and arranged below the bottom plate (1), universal wheels (3) are connected and arranged below the supporting legs (2), a stop mechanism (4) is connected and arranged below the bottom plate (1), a hydraulic rod (5) is connected and arranged on the bottom plate (1), a workbench (6) is connected and arranged on the hydraulic rod (5), a storage box (7) is arranged on the bottom plate (1), an experiment box (8) is connected and arranged on the workbench (6), three partition plates (9) are connected and arranged in the experiment box (8), the experiment box (8) is divided into a first demonstration box (10), a second demonstration box (11), a third demonstration box (12) and a fourth demonstration box (13) by the partition plates (9), four box doors (15) are hinged on the front side of the experiment box (8) through hinges (14), and a first demonstration box (10), a second demonstration box (11), a third demonstration box (12) and a fourth demonstration box (13) are all provided with ignition boxes (16), the demonstration box comprises a demonstration box I (10), a demonstration box II (11), a demonstration box III (12) and a demonstration box IV (13), wherein a water tank (17), a dry powder tank (18), a foam tank (19) and a sand box (20) are respectively connected to the upper sides of the demonstration box I (10), the demonstration box II (11), the demonstration box III (12) and the demonstration box IV (13), connecting pipes (21) are respectively connected to the lower sides of the water tank (17), the dry powder tank (18), the foam tank (19) and the sand box (20), and the connecting pipes (21) respectively extend into the demonstration box I (10), the demonstration box II (11), the demonstration box III (12) and the demonstration box IV (13) and are connected to form high-pressure spray nozzles (22).

2. An elementary school science fire-extinguishing demonstration device according to claim 1, characterized in that: stop position mechanism (4) including support column (23), support column (23) below is connected and is equipped with screw thread post (24), cup joint on screw thread post (24) and be equipped with adjusting nut (25) and fixed block (26).

3. An elementary school science fire-extinguishing demonstration device according to claim 1, characterized in that: and a pushing handle (27) is connected to one side of the workbench (6).

4. An elementary school science fire-extinguishing demonstration device according to claim 1, characterized in that: the box door (15) is made of transparent and visible materials, and a handle (28) is connected to the box door (15).

5. An elementary school science fire-extinguishing demonstration device according to claim 1, characterized in that: the connecting pipe (21) is connected with a control switch (29).