CN204833836U - Dual purpose air current experiment teaching aid - Google Patents

Abstract

The utility model discloses a dual purpose air current experiment teaching aid, include: a box, establish a spell miscarriage in the box and give birth to unit and the unit of bleeding, the box includes a lateral wall, establish on the lateral wall and the roof be connected with lateral wall top seal, by the common accommodation space who forms of lateral wall and roof, establish in the lateral wall and can separate the baffle that accommodation space is dark opaque form, establish the top cap on the roof and establish at the intramural support piece of side, the roof is equipped with a body, and establish on the body and intercommunication accommodation space's a first suction opening, first suction opening is sealed to the top cap, the lateral wall is equipped with a second suction opening, it establishes at the second suction opening and be a region of dark opaque form to be equipped with the interval on the lateral wall, the air current produces the unit and establishes in accommodation space, the air current produces the unit and includes an atomizer, one holds the piece, a heat source and establish the cold source on support piece. The utility model discloses the practicality is strong, and teaching effects is good.

Description

A kind of dual-purpose type air-flow experiment teaching aid

Technical field

The utility model relates to teaching equipment technical field, refers to a kind of dual-purpose type air-flow experiment teaching aid especially.

Background technology

In natural science applied study education, the change understanding air-flow is considerable, its objective is and allows student understand the principle that various weather conditions occur.But current mode of learning is generally told about based on written, by scientific experiment assist Students ' Learning then for minority, main cause is that the simulation teaching aid design of air-flow is not easy.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of dual-purpose type air-flow experiment teaching aid, to solve the problems of the technologies described above.

For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of dual-purpose type air-flow experiment teaching aid, comprise: a casing, be located at the gas current generating unit in described casing and a pumping cells, described casing comprises a sidewall, to be located on described sidewall and the roof be tightly connected with described top side wall, the spatial accommodation jointly formed by described sidewall and described roof, to be located in described sidewall and the dividing plate that described spatial accommodation is dark opaque shape can be separated, the support member being located at the top cover on described roof and being located in described sidewall, described roof is provided with a body, and establish on the body and be communicated with one first suction opeing of described spatial accommodation, described top cover seals described first suction opeing, described sidewall is provided with one second suction opeing, described sidewall is provided with interval and is located at described second suction opeing and in a region of dark opaque shape, described gas current generating unit is located in described spatial accommodation, described gas current generating unit comprises an atomizer that liquid can be formed atomization shape, hold described atomizer and limit a receiving member of gas flow, be located at the thermal source in described spatial accommodation, and to be located in described spatial accommodation and the low-temperature receiver be located on described support member, wherein, described low-temperature receiver and described thermal source are horizontally arranged at interval, the position of described low-temperature receiver is higher than the position of described thermal source, described pumping cells comprise be located at described casing described roof on and block one first extraction fan of described first suction opeing, and the described sidewall being located at described casing blocks one second extraction fan of described second suction opeing.

The described sidewall of described casing comprises transparent shape and two first side plates be fixedly connected with described roof, be fixedly connected with described roof and with one second side plate be connected between the first side plate described in two, with one the 3rd side plate be connected between the first side plate described in two, and to be connected to described in two between first side plate and one the 4th side plate be used alternatingly with described 3rd side plate, described region in dark opaque shape is described second side plate, described second suction opeing is located on described 3rd side plate, described 4th side plate is similarly transparent shape, described receiving member is provided with the box body holding described atomizer, and lid is located at a lid of described box body, described lid is provided with a main through hole of restriction gas flow, the described lid of described receiving member is also provided with multiple annular and is located at a via hole around described main through hole, described roof is also provided with on the body and the through hole that described in interval, the first suction opeing is arranged, and establish on the body and seal or open a block piece of described through hole, described through hole is located at the top of described low-temperature receiver.

The beneficial effect of technique scheme of the present utility model is as follows:

Because the utility model is by student and teacher's co-operate, experiment, observation and teaching, and then deepen the impression of student, the utility model can not only simulate wind spout simultaneously, can also simulate other variations in flow.

Accompanying drawing explanation

Fig. 1 is the spatial structure decomposing schematic representation of the utility model embodiment.

Fig. 2 is the front view of the utility model embodiment.

Fig. 3 is the spatial structure combination schematic diagram of the utility model embodiment.

Fig. 4 is the application schematic diagram one of the utility model embodiment.

Fig. 5 is the application schematic diagram two of the utility model embodiment.

Embodiment

For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.

As shown in Figure 1, the utility model embodiment provides a kind of dual-purpose type air-flow experiment teaching aid, comprising: a casing 2, gas current generating unit 3 and the pumping cells 4 be located in casing 2.

Casing 2 comprises a sidewall 21, be located on sidewall 21 and the roof 22 be connected with sidewall 21 top seal, the spatial accommodation 23 jointly formed with roof 22 by sidewall 21, be located in sidewall 21 and can separate a dividing plate 24 that spatial accommodation 23 is dark opaque shape, be located at the top cover 25 on roof 22 and the support member 26 that is located in sidewall 21 with detaching with detaching.Wherein, roof 22 is provided with a body 221, be located on body 221 and be communicated with spatial accommodation 23 one first suction opeing 222, be located on body 221 and and a through hole 223 at the first suction opeing 222 interval, and to be located at movably on body 221 and to seal or open a block piece 224 of through hole 223, top cover 25 is used for sealing the first suction opeing 222, sidewall 21 is provided with one second suction opeing 210, and sidewall 21 is provided with interval and is located at the second suction opeing 210 and in a region of dark opaque shape.Casing 2 is a square, therefore sidewall 21 comprises the transparent shape of two panels and one first side plate 211 be fixedly connected with roof 22, be fixedly connected with roof 22 and be connected one second side plate 212 be located between two first side plates 211, be connected to one the 3rd side plate 213 between two first side plates 211 with detaching, and connect with detaching and to be located between two first side plates 211 and one the 4th side plate 214 be used alternatingly with the 3rd side plate 213, region in dark opaque shape is the second side plate 212, second suction opeing 210 is located on the 3rd side plate 213, 4th side plate 214 is similarly transparence.

Gas current generating unit 3 is located in spatial accommodation 23 removedly, gas current generating unit 3 comprise liquid can be formed atomization shape an atomizer 31, be used for holding atomizer 31 limit a receiving member 32 of gas flow, the thermal source 33 be located in spatial accommodation 23, and to be located in spatial accommodation 23 and the low-temperature receiver 34 be located on support member 26.Wherein, receiving member 32 is provided with the box body 321 holding atomizer 31, and lid is located at a lid 322 of box body 321 removably, and lid 322 is provided with a main through hole 323 of restriction gas flow, and multiple annular is located at the via hole 324 around main through hole 323.

Pumping cells 4 comprise be located at casing 2 removedly roof 22 on and block one first extraction fan 41 of the first suction opeing 222, and to be located on the 3rd side plate 213 and to block one second extraction fan 42 of the second suction opeing 210.

As depicted in figs. 1 and 2, first the operation steps that simulation wind spout occurs is described in detail, when simulating wind spout and occurring, do not need the dividing plate 24, the 4th side plate 214, the support member 26 that use casing 2, and the thermal source 33 of gas current generating unit 3 and low-temperature receiver 34, that is, dividing plate 24, thermal source 33, low-temperature receiver 34 is needed to remove in spatial accommodation 23, and because the 3rd side plate 213 and the 4th side plate 214 are used alternatingly, be use the 3rd side plate 213 in an experiment, therefore the 3rd side plate 213 be located between two first side plates 211.In addition, support member 26 is fixedly located in sidewall 21, because support member 26 can't affect the simulation test of wind spout, does not need the action of carrying out especially dismantling.

Then, contain into liquid in the box body 321 of receiving member 32, atomizer 31 to be located in box body 321 and to cover lid 322 again lower than liquid level, the position of the corresponding atomizer 31 of the main through hole 323 on lid 322., the first top cover 25 is detached meanwhile, and the body 221 the first extraction fan 41 being located at roof 22 blocks the first suction opeing 222, then make block piece 224 seal through hole 223.In the utility model embodiment, first extraction fan 41 and atomizer 31 are general power supplies, and the second extraction fan 42 is powered by a battery 100, therefore the second extraction fan 42 is provided with a battery case 10 of battery 100 by electric wire connection, and casing 2 also comprises and is located on any one first side plate 211 and is used for the positioning piece 27 of box for placing cell in ether 10.But, if the second extraction fan 42 is by generally powering, then do not need the design of battery case 10 and keeper 27.In addition, gas is upwards extracted into the external world by spatial accommodation 23 by the first extraction fan 41, and the second extraction fan 42 is then that gas is extracted in spatial accommodation 23 by the external world.After above-mentioned action completes, the first extraction fan 41, second extraction fan 42 can be started, and atomizer 31.

As shown in Figure 2, after atomizer 31 starts, just the liquid be contained in box body 321 can be formed atomization shape, and upwards emerge in spatial accommodation 23 through the main through hole 323 of lid 322 with via hole 324, because wind spout is the phenomenon that a kind of strong updraft is formed, therefore be used for gas to be upwards extracted into the external world by spatial accommodation 23 by the first extraction fan 41, the second extraction fan 42 is coordinated to pump in spatial accommodation 23 by gas by the external world constantly again, just can simulate the generation of updraft, and make the liquid being atomized shape form the form of small-sized wind spout.Because the second side plate 212 is dark and opaque shape, therefore when operator observes, the formation of wind spout clearerly can be found out.

As shown in figures 1 and 3, next the operation steps of bright observation cold-hot air convection situation is put off until some time later, when simulating cold-hot air convection, do not need the atomizer 31 and the receiving member 32 that use gas current generating unit 3, use first extraction fan 41 is not needed yet, second extraction fan 42, that is, before the experiments were performed, need the second extraction fan 42 first removing the 3rd side plate 213 and arrange, and atomizer 31 and receiving member 32 are removed in spatial accommodation 23, then dividing plate 24 is installed, low-temperature receiver 34 is located on support member 26, and thermal source 33 is located in spatial accommodation 23 and lateral separation in the position of low-temperature receiver 34, the position of low-temperature receiver 34 is higher than the position of thermal source 33.Again the 4th side plate 214 is located between two first side plates 211, namely replaces the 3rd side plate 213 with the 4th side plate 214.In addition, remove the first extraction fan 41, and make top cover 25 really stop the first suction opeing 222, then make block piece 224 seal through hole 223.

As shown in Figure 4, thermal source 33 is contained into hot water by a container 331, and low-temperature receiver 34 is contained into ice cube 5 by a container 341.Because hot-air can move up, and cold air can move down, when the hot-air therefore produced when thermal source 33 moves up, the restriction of roof 22 and dividing plate 24 can be subject to and the direction toward low-temperature receiver 34 is moved, and through the cooling from low-temperature receiver 34 after forming cold air, then move down.Just can observe hot-air to move up, the convection current moved down again after supercooling, carrying out this experiment needs the reason being located at dividing plate 24 to be: in order to avoid spatial accommodation 23 is excessive, cause hot-air in the process moved up, can move toward other all directions, and reduce the amount of the direction movement toward low-temperature receiver 34, the observations of experiment can be affected, therefore dividing plate 24 is set and spatial accommodation 23 can be separated out less region, coordinate dividing plate 24 for dark color again and opaque shape, therefore when operator observes, clearerly can find out the situation of cold-hot air convection.

As shown in Figure 5, if when the hot-air that produces of thermal source 33 is not enough, block piece 224 can also be moved on through hole 223, and article 6 that can produce smog are located in spatial accommodation 23, in order to the generation of auxiliary heat air by through hole 223.Through hole 223 is located at the top of low-temperature receiver 34, and can clearly find out smog meet cold after the situation that moves down.

It is more than preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (2)

1. a dual-purpose type air-flow experiment teaching aid, it is characterized in that, comprise: a casing, be located at the gas current generating unit in described casing and a pumping cells, described casing comprises a sidewall, to be located on described sidewall and the roof be tightly connected with described top side wall, the spatial accommodation jointly formed by described sidewall and described roof, to be located in described sidewall and the dividing plate that described spatial accommodation is dark opaque shape can be separated, the support member being located at the top cover on described roof and being located in described sidewall, described roof is provided with a body, and establish on the body and be communicated with one first suction opeing of described spatial accommodation, described top cover seals described first suction opeing, described sidewall is provided with one second suction opeing, described sidewall is provided with interval and is located at described second suction opeing and in a region of dark opaque shape, described gas current generating unit is located in described spatial accommodation, described gas current generating unit comprises an atomizer that liquid can be formed atomization shape, hold described atomizer and limit a receiving member of gas flow, be located at the thermal source in described spatial accommodation, and to be located in described spatial accommodation and the low-temperature receiver be located on described support member, wherein, described low-temperature receiver and described thermal source are horizontally arranged at interval, the position of described low-temperature receiver is higher than the position of described thermal source, described pumping cells comprise be located at described casing described roof on and block one first extraction fan of described first suction opeing, and the described sidewall being located at described casing blocks one second extraction fan of described second suction opeing.

2. dual-purpose type air-flow experiment teaching aid according to claim 1, it is characterized in that, the described sidewall of described casing comprises transparent shape and two first side plates be fixedly connected with described roof, be fixedly connected with described roof and with one second side plate be connected between the first side plate described in two, with one the 3rd side plate be connected between the first side plate described in two, and to be connected to described in two between first side plate and one the 4th side plate be used alternatingly with described 3rd side plate, described region in dark opaque shape is described second side plate, described second suction opeing is located on described 3rd side plate, described 4th side plate is similarly transparent shape, described receiving member is provided with the box body holding described atomizer, and lid is located at a lid of described box body, described lid is provided with a main through hole of restriction gas flow, the described lid of described receiving member is also provided with multiple annular and is located at a via hole around described main through hole, described roof is also provided with on the body and the through hole that described in interval, the first suction opeing is arranged, and establish on the body and seal or open a block piece of described through hole, described through hole is located at the top of described low-temperature receiver.