CN2582082Y

CN2582082Y - Fluid demonstration model

Info

Publication number: CN2582082Y
Application number: CN 02244425
Authority: CN
Inventors: 苏强
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-15
Filing date: 2002-10-15
Publication date: 2003-10-22
Anticipated expiration: 2012-10-15

Abstract

The utility model relates to a fluid demonstration model which is provided with a model basal body, wherein a main flow channel is arranged on the model basal body, and the utility model is characterized in that the utility model is provided with an auxiliary flow channel. A jet flow opening which is communicated with the auxiliary flow channel is arranged at a bent channel or the protruded position of the main flow channel. The fluid demonstration model of the utility model can demonstrate the flow rate of fluid or the mutation in flow direction under the conditions of low flow rate and low water depth. The state of the flow of the fluid in a real environment can be reflected out in a sort of distorted model body, and consequently, demonstration models are conveniently made in batch in low difficulty. Simultaneously, by selecting the set height of the jet flow opening, a product which is made according to the technical proposal of the utility model can also reflect the flow speed or the flow direction difference of the water flow at a surface layer and a bottom layer. In addition, by using the technical proposal of the utility model, a model with scientificalness and amusement can be also made.

Description

The fluid demonstrating model

Technical field

The utility model relates to a kind of model, especially a kind of fluid demonstrating model.

Background technology

Existing fluid demonstrating model is common in the current demonstrating model.In order to demonstrate the flow state of current in actual region, the method that existing current demonstrating model is normally taked to imitate actual watershed morphology is made, and promptly is that the runner with reality dwindles according to a certain percentage.But, in the use of model, find, when water movement is near the bend of runner or outstanding position, the model of Zhi Zuoing can not be demonstrated the motion state of the solid matters such as silt in current and the current preferably in a manner described, this be because, when the runner with reality dwindles according to a certain percentage and is made into model, flow rate of water flow in the model and flow depth also need to reduce significantly according to a certain percentage, and the current of low flow velocity and the silt carried secretly in current thereof often can not significantly turnover occur near the bend of runner or outstanding position, simultaneously, because the depth of water in the model is very little, often can't embody the difference on the flow direction of top layer current and bottom current.So no matter how similar the runner form in the model and actual runner have, and also can't simulate the flow effect similar to actual runner.In addition,, also can increase the manufacture difficulty of model greatly, both be unfavorable for large batch of making demonstrating model, be unfavorable for reducing the cost of model again if reach in modal emulation and demonstrate effect preferably by pursuing model.Certainly, from another kind of angle, the fluidised form sudden change by existing model demonstration fluid is if desired both had a science thereby produce, the recreational novel visual effect of tool again, and existing model also can't satisfy this requirement fully.Therefore, the model made of existing mode exists defective.

The utility model content

The fluid demonstrating model that the purpose of this utility model provides a kind of good demonstration effect and is convenient to make.

The purpose of this utility model realizes in the following manner: bend or outstanding position at the model sprue are provided with flow jeting port, fluid by the ejection of this flow jeting port is to the fluid exert in the sprue, significantly change the fluidised form of the interior fluid of sprue at this place, thus the demonstration effect that realization and actual fluidised form match; Simultaneously, in model, be set to the auxiliary flow of above-mentioned flow jeting port accommodating fluid.Specifically, fluid demonstrating model of the present utility model has the model matrix, and the model matrix is provided with sprue, it is characterized in that being provided with auxiliary flow, is provided with the flow jeting port that is connected with described auxiliary flow at the bend or the outstanding position of sprue.In the utility model, the sprue that is provided with in the above-mentioned model is the original runner that is used to demonstrate the flow state, and auxiliary flow then is used to the runner of flow jeting port for stream.Above-mentioned sprue can be the circulation sprue that constitutes closed fluid circuit, but also can be to offer with the inflow port of exterior and go out the open runner of head piece.When sprue is when constituting the circulation sprue of closed fluid circuit, fluid pump (air pump or liquid pump) should be set, to realize the circulation of fluid, at this moment in sprue, can allow above-mentioned auxiliary flow be connected with the head piece that goes out of fluid pump, the corresponding flow jeting port that allows obtains the fluid supply.When sprue is the open runner that has into and out of head piece, then can allow auxiliary flow also have fluid inlet, certainly, also can allow the main and auxiliary shared fluid inlet of runner that helps.In model of the present utility model, employed fluid can be a liquid stream, but also can be air-flow.When adopting air-flow, can in runner, add the lightweight solid that can be blown by gas, demonstrate effect so that observe.Certainly, when the fluid that uses is liquid stream (as current), still can in runner, add solid, as sandstone particle, plastic grain or flexible floccus, fixing floating thing etc.For example, when using fixing floating thing, though a certain position of floating thing is fixed in the runner, along with flowing of liquid stream, floating thing still can lead to the flow direction and the variation tendency of its direction indication fluid stream that floats.When using liquid stream, the sprue of model both can adopt the uncovered form in top, also can adopt the totally enclosed form in top, can also on model, offer simultaneously communicate with sprue can closed liquid injection port.Concrete when making model of the present utility model, can near needs are demonstrated the bend of the flow velocity of current or the sprue that the flow direction is undergone mutation, above-mentioned flow jeting port be set.Need to prove: said bend can be conventional curved channel in the utility model, simultaneously, when the turnout appears in sprue, has in fact also formed the said bend of the utility model between at least one runner behind stream section before the fork and the fork.In addition, also can near needs are demonstrated the flow velocity of current or the outstanding position of sprue that the flow direction is undergone mutation above-mentioned flow jeting port be set, herein, the outstanding position of said sprue can be positioned at the side bank of runner, but also can be positioned at the bottom of runner.Like this, in the process of utilizing model to demonstrate, fluid in the sprue (gas or liquid) is near flowing to above-mentioned flow jeting port the time, will be subjected to the effect of the fluid that sprays in this flow jeting port and the change that produces flow velocity or flow to, thereby reach desirable demonstration effect.In the utility model, according to the needs of actual presentation, also can only above-mentioned flow jeting port be set at the bend position of sprue, similar therewith, also can only flow jeting port be set at a certain outstanding position of sprue.

Compared with the aforementioned existing similar products, fluid demonstrating model of the present utility model can be in the sudden change of demonstrating out flow rate of fluid or flowing under the situation of low flow velocity, the low depth of water, and can in the model type body of slightly distortion, reflect the flow state of fluid in the actual environment, thereby be convenient to low difficulty ground batch making demonstrating model.Simultaneously, by choosing the height that is provided with of above-mentioned flow jeting port, the product of making by the technical solution of the utility model can also the reflection table, the flow velocity of bottom current or flow to difference.In addition, because the utility model can indiscriminately ad. as one wishes be demonstrated out the fluidised form sudden change of fluid, therefore, can utilize the technical solution of the utility model to produce both to have science, the recreational demonstrating model of tool makes the audience produce novel visual effect again.

Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.

Description of drawings

Fig. 1 is a structure of models synoptic diagram among the embodiment 1.

Fig. 2 is the A--A sectional view of Fig. 1.

Fig. 3 is the B--B sectional view of Fig. 1.

Fig. 4 is the C--C cut-open view of Fig. 1.

Fig. 5 is a structure of models synoptic diagram among the embodiment 2.

Fig. 6 is the D--D sectional view of Fig. 5.

Fig. 7 is the E--E sectional view of Fig. 5.

Fig. 8 is the F--F cut-open view of Fig. 5.

Fig. 9 is a structure of models synoptic diagram among the embodiment 3.

Figure 10 is the G--G sectional view of Fig. 9.

Figure 11 is the H--H sectional view of Fig. 9.

Figure 12 is the J--J cut-open view of Fig. 9.

Figure 13 is a structure of models synoptic diagram among the embodiment 4.

Embodiment

Embodiment 1: shown in Fig. 1～4, model in the present embodiment has model matrix 1, model matrix 1 is provided with sprue 2, it is characterized in that being provided with auxiliary flow 3, is respectively arranged with the

flow jeting port

4,5 that is connected with described auxiliary flow at the bend and the outstanding position of sprue 2.In the present embodiment, above-mentioned sprue 2 is the circulation sprues that constitute closed fluid circuit, matrix 1 is provided with fluid pump 6, the inflow port of described fluid pump 7 and go out head piece 8 and all be positioned at described circulation sprue 2, and described auxiliary flow 3 is connected with the head piece 8 that goes out of fluid pump.In addition, in sprue 2, be loaded with solid 9 (solid in this example adopts the bigger solid particle of proportion---the grains of sand).The fluid that is adopted in the present embodiment is current.The demonstration mechanism of model is in the present embodiment: in the river of reality, when liquid stream after the stream section 10 of sprue flows to fork river course 11 and during river course 12, because tangible bending has taken place with respect to 10 stream sections in river course 11, most of superficial water fails to be convened for lack of a quorum and pours in river course 12, most of bottom current and the bigger silt of the proportion of carrying secretly thereof then can enter river course 11, also that is to say that the sediment charge of the current in river course 12 is less relatively, thereby can obtain the less clear water of sediment charge in effluent road 12.And the model in using present embodiment is when demonstrating, because bend and outstanding position at sprue 2 are respectively arranged with

flow jeting port

4,5, and flow jeting port 4 is positioned at the bottom of runner, flow jeting port 5 is positioned at the top of runner, therefore the current of carrying solid particle in model secretly are flowed to the river course 11 of fork by 10 stream sections, 12 o'clock, will simulate the flow-shape in the above-mentioned actual river, be that most of top layer current pour in river course 12 under the promotion of current that flow jeting port 5 sprays, simultaneously, most of bottom current and the bigger solid particle of proportion carried secretly thereof then can enter river course 11 under the promotion of current that flow jeting port 4 sprays.It is contemplated that if above-mentioned

flow jeting port

4,5 is not set, obtaining above-mentioned demonstration effect in the model less in the depth of water, that flow rate of water flow is lower will be very difficult.In addition, set fluid pump 6 (water pump) can be realized the circulation demonstration of fluid in the present embodiment.During model in using present embodiment, fluid pump can be by its inflow port 7 pumping unit current from runner, and after the fluid pump pressurization, the current of suction go out head piece 8 outwards ejection continuously by fluid pump.When the current of ejection enough greatly and when having enough speed, all the other water and solid particle that it will drive in the runner are done directed movement along runner, and allow water and solid particle shuttling movement in runner in the whole circulation sprue thus.In said process, though whole water in the runner and solid particle are made shuttling movement in runner, pump suction, pressurization again ejection only be a part of current in the runner.Therefore, be to apply power for a part of current in this example by fluid pump, allow these a part of current give all the other current and solid particle with transmission of power, thus make whole current and solid particle can be in runner shuttling movement.Like this, both can avoid the bigger solid particle of particle diameter to enter fluid pump and cause fluid pump to damage, and can allow solid particle shuttling movement in the runner that is constituting the closed-loop path under the promotion of current again, reach the demonstration effect of expection.Because auxiliary flow 3 is connected with the head piece 8 that goes out of fluid pump, so

flow jeting port

4,5 can access enough liquid stream supplies.In the present embodiment, the inflow port 7 of fluid pump is positioned at the side wall upper part of sprue 2, and promptly the position on the upper side of sidewall even therefore filter screen is not set, does not have the bigger solid particle of particle diameter yet and enters this inflow port 7.Certainly, also above-mentioned inflow port 7 can be arranged on the bottom of runner, then need set up similar filter elements such as screen pack this moment.In addition, the inflow port 7 of fluid pump is arranged on the place ahead that fluid pumps head piece 8 in this example, thereby can utilize out near the current and the solid particle of jet impulse inflow port of head piece 8, avoids solid particle alluvial to occur at inflow port 7 places.With regard to present embodiment,, also can only flow jeting port 4 be set at the bend position of sprue 2 according to the needs of actual presentation.Similar therewith, also can only flow jeting port 5 be set at a certain outstanding position of sprue 2.Sprue 2 in the present embodiment has adopted the uncovered form in top.Also it should be noted that,, therefore, in fact also formed the said bend of the utility model between the river course 11 behind stream section 10 before the fork and the fork because the turnout has appearred in the sprue in the present embodiment.

Embodiment 2: shown in Fig. 5～8, the model in the present embodiment is similar to embodiment 1, and different is, only there is a river course 11 in the downstream of the stream section 10 in the present embodiment and does not have the turnout, and simultaneously, stream section 10 links to each other with downstream river course 11 through bend.The demonstration mechanism of model is in the present embodiment: in the river of reality, when current when 10 stream sections of sprue are flowed through bend, concave bank one side that most of superficial water fails to be convened for lack of a quorum and influxs bend, the silt that most of bottom current and the proportion of carrying secretly thereof are bigger then can be along convex bank one lateral movement of bend, also that is to say, the sediment charge of the current of bend concave bank one side is less relatively, and the sediment charge of the current of bend convex bank one side is then relatively large, and the sandstone of bottom deposit is also more.And the model in using present embodiment is when demonstrating, because bend concave bank and bend convex bank (also can be considered the outstanding position of sprue) at sprue are respectively arranged with

flow jeting port

4,5, and flow jeting port 4 is positioned at the bottom of runner, flow jeting port 5 is positioned at the top of runner, therefore when the current of carrying solid particle in the model secretly flow to river course 11 by 10 stream sections, will simulate the flow-shape in the above-mentioned actual river, be that most of top layer current influx the bend concave bank under the promotion of current that flow jeting port 5 sprays, simultaneously, most of bottom current and the bigger solid particle of proportion carried secretly thereof then can be in promotion lower edge bend convex bank one lateral movements of current that flow jeting port 4 sprays.Solid particle in the present embodiment is the grains of sand.

Embodiment 3: shown in Fig. 9～12, the model in the present embodiment is similar to embodiment 2, and different is that present embodiment is provided with the sheet transparent body 13 with the upper opening sealing of sprue.The sheet transparent body 13 in the present embodiment is a glass sheet, and this glass sheet also can be replaced by similar materials such as transparent plastic sheets.

Embodiment 4: as shown in figure 13, the model in the present embodiment is similar to embodiment 1, and different is that the sprue in the present embodiment is not the circulatory flow that constitutes closed fluid circuit, and is corresponding, is not provided for promoting the fluid pump of current yet.In the present embodiment, set sprue 2 has with the inflow port 14 of exterior and goes out head piece 15, and simultaneously, auxiliary flow 3 also has the inflow port with exterior.Herein, auxiliary flow 3 and sprue 2 shared inflow port 14.When by an amount of tap water of introducing of inflow port 14, when going out an amount of current of discharging in the models of head piece 15, just can in model, form flowing water flow, and the flow state of current is similar to embodiment 1 simultaneously.In the present embodiment, the tap water of introducing by inflow port 14 by flow jeting port 8 (be equivalent among the embodiment 1 fluid pump go out head piece) spray into sprue 2.

Claims

1, a kind of fluid demonstrating model has the model matrix, and the model matrix is provided with sprue, it is characterized in that being provided with auxiliary flow, is provided with the flow jeting port that is connected with described auxiliary flow at the bend or the outstanding position of sprue.

2, model as claimed in claim 1, it is characterized in that described sprue is for constituting the circulation sprue of closed fluid circuit, matrix is provided with fluid pump, the inflow port of described fluid pump and go out head piece and all be positioned at described circulation sprue, described auxiliary flow is connected with the head piece that goes out of fluid pump.

3, model as claimed in claim 2 is characterized in that being loaded with solid in described sprue.

4, model as claimed in claim 3 is characterized in that the inflow port of described fluid pump is positioned at the side wall upper part of sprue.

5,, it is characterized in that being arranged on the place ahead that fluid pumps head piece in the inflow port of described fluid pump as claim 3 or 4 described models.

6, model as claimed in claim 1 is characterized in that described sprue has with the inflow port of exterior and goes out head piece, and described auxiliary flow has the inflow port with exterior.

7, model as claimed in claim 6 is characterized in that being loaded with solid in described sprue.