CN208873362U - A kind of children's experimental apparatus Bernoulli phenomenon demonstration device - Google Patents

Abstract

The utility model discloses a kind of children's experimental apparatus Bernoulli phenomenon demonstration devices, including demonstration device shell, connected slot, connection inserting column, blowpipe and funnel, the demonstration device shell includes demonstration device upper housing and demonstration device lower case, the medial surface middle position of the demonstration device lower case is provided with blowpipe column, the medial surface middle position of the demonstration device upper housing offers aperture blowing, the two sides that the medial surface of the demonstration device lower case is located at blowpipe column are symmetrical arranged there are two connection inserting column, connected slot there are two the medial surface of the demonstration device upper housing is arranged symmetrically in the two sides of aperture blowing, two connection inserting columns respectively correspond in two connected slots of grafting, blowpipe hole is offered at the outside of the demonstration device lower case, the medial surface of the demonstration device upper housing is equipped with limit plate, the shape of the blowpipe is L-type.The utility model interest is strong, it is at low cost, it can be achieved that kinds of experiments phenomenon displaying, be conducive to children and understand and easy to assembly.

Description

A kind of children's experimental apparatus Bernoulli phenomenon demonstration device

Technical field

The utility model relates to children's experimental apparatus technical field, specially a kind of children's experimental apparatus Bernoulli phenomenon is drilled Show device.

Background technique

Bernoulli phenomenon is suitable for all fluids including gas, be fundamemtal phenomena when fluid makees steady flow it One, reflect the pressure of fluid and the relationship of flow velocity, the relationship of flow velocity and pressure: the flow velocity of fluid is bigger, and pressure is smaller；Fluid Flow velocity it is smaller, pressure is bigger, and existing embodiment Bernoulli phenomenon mode is broadly divided into three kinds, and one kind is close to be made by air-flow Two objects attract each other, one kind by air-flow floats bead, a kind of to rise experiment under airflow function for wing.

But the experiment method of existing Bernoulli phenomenon has the disadvantage in that

1, the existing every kind experiment method about Bernoulli phenomenon, shows only one of relative theory in each test A content cannot achieve the displaying of kinds of experiments phenomenon, there is certain limitation in the explanation of principle, to be not easy to children Understand.

2, structure is complicated for existing Bernoulli phenomenon demonstration device, at high cost, and assembles inconvenience.

Summary of the invention

In view of the deficiencies of the prior art, the utility model provides a kind of children's experimental apparatus Bernoulli phenomenon demonstration device, Solves the problem that existing technology interest is not strong, at high cost, and experiment type is single, assembling is inconvenient.

To achieve the above object, the utility model provides the following technical solutions: a kind of children's experimental apparatus Bernoulli phenomenon Demonstration device, including demonstration device shell, connected slot, connection inserting column, blowpipe and funnel, the demonstration device shell includes on demonstration device Shell and demonstration device lower case, the medial surface middle position of the demonstration device lower case are provided with blowpipe column, on the demonstration device The medial surface middle position of shell offers aperture blowing, and the two sides that the medial surface of the demonstration device lower case is located at blowpipe column are symmetrically set It sets there are two connection inserting column, the medial surface of the demonstration device upper housing is symmetrical arranged in the two sides of aperture blowing there are two connected slot, Two connection inserting columns respectively correspond in two connected slots of grafting, offer blowpipe at the outside of the demonstration device lower case Hole, the medial surface of the demonstration device upper housing are equipped with limit plate, and the shape of the blowpipe is L-type, the vertical section of the blowpipe It is arranged in blowpipe column, the funnel is arranged in aperture blowing, and the bottom end of funnel is connect with the upper end interference of blowpipe column, described In the horizontal segment insertion blowpipe hole of blowpipe.

Preferably, the demonstration device shell, connected slot, connection inserting column, blowpipe column, limit plate, blowpipe and funnel are By PP injection molded.

Preferably, the demonstration device upper housing and demonstration device lower case, which be combined with each other, constitutes the shape of a flying saucer.

Preferably, the blowpipe column is half-open column.

Preferably, the bottom end of the limit plate offers arc-shaped slot, and the horizontal segment of the blowpipe is located at demonstration device shell Internal pipe shaft is connected in the arc-shaped slot of limit plate bottom.

The utility model provides a kind of children's experimental apparatus Bernoulli phenomenon demonstration device, have it is following the utility model has the advantages that

The utility model is by setting connected slot, connection inserting column, blowpipe and funnel, in use, first by 90 degree of blowpipe Bending, blowpipe is just made of vertical section and horizontal segment at this time, and blowpipe vertical section is put into blowpipe column in the middle part of demonstration device lower case The horizontal segment of inside, blowpipe passes through blowpipe hole, and blowpipe mouthpiece is made to be located at the outside of demonstration device shell, just completes the peace of blowpipe at this time It sets, then demonstration device upper housing is buckled in demonstration device lower case, make connected slot and connection inserting column grafting by demonstration device upper casing Body and demonstration device lower case are fixed together, and the arc groove of limit plate bottom is pressed in the level of blowpipe during snapping Duan Shang when demonstration, EPS ball is placed at aperture blowing, contains blowpipe with mouth and persistently blows, and so that EPS ball is suspended, is needed to carry out it Funnel is inserted among the aperture blowing of demonstration device upper housing when he tests, and is flexibly connected blowpipe column with funnel bottom, then will The phenomenon that EPS is put into funnel, is contained blowpipe with mouth and is persistently blown, and observation EPS ball occurs under bernoulli principle, this is practical new Type interest is strong, at low cost, displaying is excellent, experiment type is more, convenient for assembling, and being compared by kinds of experiments can convenient for children reason Solution, if dispose funnel in demonstration device shell upper end, different Bernoulli Jacob's experiment effects can be verified, two kinds of experiment effects are bright It is aobvious, have comparative.

Detailed description of the invention

Fig. 1 is the overall diagram of the utility model；

Fig. 2 is the utility model demonstration device upper housing structural schematic diagram；

Fig. 3 is the demonstration device lower case structural schematic diagram of the utility model；

Fig. 4 is the structural schematic diagram of the utility model funnel.

In figure: 1, demonstration device shell；2, demonstration device upper housing；3, demonstration device lower case；4, connected slot；5, connection is inserted Column；6, blowpipe column；7, aperture blowing；8, limit plate；9, blowpipe hole；10, blowpipe；11, funnel；12, arc-shaped slot.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figs 1-4, the utility model provides a kind of technical solution: a kind of children's experimental apparatus Bernoulli phenomenon demonstration Device, including demonstration device shell 1, connected slot 4, connection inserting column 5, blowpipe 10 and funnel 11, demonstration device shell 1 include on demonstration device Shell 2 and demonstration device lower case 3, the medial surface middle position of demonstration device lower case 3 are provided with blowpipe column 6, demonstration device upper housing 2 Medial surface middle position offer aperture blowing 7, the two sides that the medial surface of demonstration device lower case 3 is located at blowpipe column 6 are symmetrically arranged with Two connection inserting columns 5, the medial surface of demonstration device upper housing 2 are symmetrical arranged in the two sides of aperture blowing 7 there are two connected slot 4, and two Connection inserting column 5 respectively corresponds in two connected slots 4 of grafting, and blowpipe hole 9 is offered at the outside of demonstration device lower case 3, demonstration The medial surface of device upper housing 2 is equipped with limit plate 8, and the shape of blowpipe 10 is L-type, and the vertical section of blowpipe 10 is arranged in blowpipe column 6 Interior, funnel 11 is arranged in aperture blowing 7, and the bottom end of funnel 11 is connect with the upper end interference of blowpipe column 6, the horizontal segment of blowpipe 10 It is inserted into blowpipe hole 9, demonstration device shell 1, connected slot 4, connection inserting column 5, blowpipe column 6, limit plate 8, blowpipe 10 and funnel 11 It is by PP injection molded, demonstration device upper housing 2 and demonstration device lower case 3 be combined with each other and constitute the shape of a flying saucer, flying saucer Moulding on the one hand more attract the interest of children, on the other hand can more preferably fix blowpipe 10, anti-sliding stop, blowpipe column 6 is partly Column is opened, the bottom end of limit plate 8 offers arc-shaped slot 12, and the horizontal segment of blowpipe 10 is located at the pipe shaft card inside demonstration device shell 1 It connects in the arc-shaped slot 12 of 8 bottom of limit plate.

In use, first bending 10 90 degree of blowpipe, blowpipe 10 is just made of vertical section and horizontal segment at this time, blowpipe 10 Vertical section is put into the inside of 3 middle part blowpipe column 6 of demonstration device lower case, and the horizontal segment of blowpipe 10 passes through blowpipe hole 9, blows blowpipe 10 Mouth is located at the outside of demonstration device shell 1, just completes the placement of blowpipe 10 at this time, demonstration device upper housing 2 is then buckled in demonstration device In lower case 3, make connected slot 4 that demonstration device upper housing 2 and demonstration device lower case 3 be fixed together with 5 grafting of connection inserting column, And the arc-shaped slot 12 of 8 bottom of limit plate is pressed on the horizontal segment of blowpipe 10 during snapping, when demonstration, by EPS ball It is placed at aperture blowing 7, contains blowpipe 10 with mouth and persistently blow, EPS ball is made to suspend, by funnel 11 when needing to carry out other experiments It is inserted among the aperture blowing 7 of demonstration device upper housing 2, and is flexibly connected blowpipe column 6 with 11 bottom of funnel, EPS is then put into leakage In bucket 11, contains blowpipe 10 with mouth and persistently blow, observe the phenomenon that EPS ball occurs under bernoulli principle.

It can to sum up obtain, the utility model is solved by setting connected slot 4, connection inserting column 5, blowpipe 10 and funnel 11 Existing technology art interest is not strong, at high cost, the problem that experiment type is single, assembling is inconvenient.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of children's experimental apparatus Bernoulli phenomenon demonstration device, including demonstration device shell (1), connected slot (4), connection inserting column (5), blowpipe (10) and funnel (11), it is characterised in that: the demonstration device shell (1) includes demonstration device upper housing (2) and demonstration The medial surface middle position of device lower case (3), the demonstration device lower case (3) is provided with blowpipe column (6), the demonstration device upper casing The medial surface middle position of body (2) offers aperture blowing (7), and the medial surface of the demonstration device lower case (3) is located at blowpipe column (6) Two sides are symmetrical arranged there are two connection inserting column (5), and the medial surface of the demonstration device upper housing (2) is symmetrical in the two sides of aperture blowing (7) There are two connected slot (4), two connection inserting columns (5) are respectively corresponded in two connected slots (4) of grafting, described to drill for setting Show and offered at the outside of device lower case (3) blowpipe hole (9), the medial surface of the demonstration device upper housing (2) is equipped with limit plate (8), the shape of the blowpipe (10) is L-type, and the vertical section setting of the blowpipe (10) is in blowpipe column (6), the funnel (11) it is arranged on aperture blowing (7), and the bottom end of funnel (11) is connect with the upper end interference of blowpipe column (6), the blowpipe (10) Horizontal segment insertion blowpipe hole (9) in.

2. a kind of children's experimental apparatus Bernoulli phenomenon demonstration device according to claim 1, it is characterised in that: the demonstration Device shell (1), connected slot (4), connection inserting column (5), blowpipe column (6), limit plate (8), blowpipe (10) and funnel (11) are By PP injection molded.

3. a kind of children's experimental apparatus Bernoulli phenomenon demonstration device according to claim 1, it is characterised in that: the demonstration Device upper housing (2) and demonstration device lower case (3), which be combined with each other, constitutes the shape of a flying saucer.

4. a kind of children's experimental apparatus Bernoulli phenomenon demonstration device according to claim 1, it is characterised in that: the blowpipe Column (6) is half-open column.

5. a kind of children's experimental apparatus Bernoulli phenomenon demonstration device according to claim 1, it is characterised in that: the limit The bottom end of plate (8) offers arc-shaped slot (12), and the horizontal segment of the blowpipe (10) is located at the internal pipe shaft of demonstration device shell (1) It is connected in the arc-shaped slot (12) of limit plate (8) bottom.