CN208834578U - A kind of teaching aid - Google Patents
A kind of teaching aid Download PDFInfo
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- CN208834578U CN208834578U CN201820317148.1U CN201820317148U CN208834578U CN 208834578 U CN208834578 U CN 208834578U CN 201820317148 U CN201820317148 U CN 201820317148U CN 208834578 U CN208834578 U CN 208834578U
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Abstract
The utility model provides a kind of teaching aid, is related to realia field.A kind of teaching aid, including provisioning component and the water inlet being sequentially communicated, bend, water outlet.Provisioning component is used to provide arsenicbearing gold ores to water inlet.During entire displaying, water flow is that dynamic flows, when water flow passes through the bending section in bend, learner can more intuitively observe the bend secondary flow phenomenon occurred in bending section, i.e. when water flow passes through bend, water flow is not simply to do curvilinear motion, but helically formula downstream moves, and a closed circulation is generated on cross section.Since the displaying of the teaching aid is more intuitive, lively, it is that learner's explanation bend secondary flow principle can make learner be easier to understand bend secondary flow principle by the teaching aid, learner is made to reach better learning effect.
Description
Technical field
The utility model relates to realia fields, in particular to a kind of teaching aid.
Background technique
In the water systems such as nature or the river of hydraulic engineering, water-sediment movement follows a kind of important characteristics of motion principle ---
The principle of bend secondary flow.I.e. when river is more straight, water flow is moved in a straight line, and the distribution of silt is also substantially in water flow
Even；And when river is bend, water flow is not simply to do curvilinear motion, but helically formula downstream moves,
And a closed circulation is generated on cross section.Show that teaching aid cannot be fine used in study bend secondary flow principle at present
Ground shows Solution of Flow in Curved Channel situation, causes learner to face many difficulties when learning the principle, understanding effect is poor.
Utility model content
The purpose of this utility model is to provide a kind of teaching aids, can more vivo show the bend secondary flow of water-sediment movement
Principle makes learner be easier to understand the principle, reaches better learning effect.
The embodiments of the present invention are achieved in that
A kind of teaching aid, including provisioning component and the water inlet being sequentially communicated, bend, water outlet.Provisioning component be used for
Water inlet provides arsenicbearing gold ores.
In an embodiment of the present invention, provisioning component includes sandbox.Sandbox is used to launch the grains of sand to water inlet.
In an embodiment of the present invention, sandbox be equipped with through-hole and with the matched stopple of through-hole, stopple is optional
Ground opens or closes through-hole.
In an embodiment of the present invention, bend includes the first branch flow passage and the second branch flow passage.First branch flow passage
And second be provided with the first separation levee between branch flow passage.The horizontal plane of first branch flow passage is higher than the horizontal plane of the second branch flow passage.Out
The mouth of a river includes first outflux and second outflux.First branch flow passage and first outflux are interconnected, the second tributary
Road and second outflux are interconnected.
In an embodiment of the present invention, the second branch flow passage is equipped with sedimentation basin.Sedimentation basin and the first separation levee phase
To the two sides for being set to the second branch flow passage.
In an embodiment of the present invention, the second shunting is additionally provided between the first branch flow passage and the second branch flow passage
Dike.First separation levee includes the first end and second end being oppositely arranged, and second end is located at side of the first end far from water inlet.The
Indwelling notch between two ends and the second separation levee is so that the first branch flow passage and the second branch flow passage are interconnected.The horizontal plane of notch is high
In the horizontal plane of the second branch flow passage.
In an embodiment of the present invention, the second branch flow passage includes first segment and second segment.First segment is located at the
Between two separation levees and water inlet, second segment is between the second separation levee and second outflux.Is provided in second segment
Second segment is divided into the first turnout and the second turnout by three separation levees, third separation levee.First turnout is by third separation levee and
Two separation levees limit to be formed.The horizontal plane on the first turnout is higher than the horizontal plane on the second turnout.Second outflux includes the first trouble
Road outlet and the outlet of the second turnout, the outlet of the first turnout are interconnected with the first turnout, the outlet of the second turnout and the second turnout phase
It is intercommunicated.
In an embodiment of the present invention, the inlet calibre on the first turnout is greater than the inlet calibre on the second turnout.
In an embodiment of the present invention, water outlet is connected with filtration members, and filtration members are for filtering out the grains of sand.
A kind of teaching aid, including provisioning component and the water inlet being sequentially communicated, bend, water outlet.Provisioning component includes water
Pump.Water outlet is connect with water pump by first pipe, and water inlet is connect with water pump by second pipe.Water pump is used for water inlet
Arsenicbearing gold ores are provided.
The utility model embodiment at least have the following advantages that or the utility model has the advantages that
The utility model embodiment provides a kind of teaching aid, is mainly used as explanation auxiliary demonstration tool, more convenient for learner
The bend secondary flow principle in water-sediment movement is understood well.The teaching aid mainly include provisioning component and the water inlet being sequentially communicated,
Bend, water outlet.Provisioning component is used to provide arsenicbearing gold ores to water inlet, and arsenicbearing gold ores are flowed in bend along bend, finally
It is flowed out from water outlet.During entirely showing, water flow is that dynamic flows, when water flow passes through the bending section in bend, learner
It can more intuitively observe that in the bend secondary flow phenomenon that bending section occurs, i.e., when water flow passes through bend, water flow is not
It is simply to do curvilinear motion, but helically formula downstream moves, and a closed circulation is generated on cross section.By
It is more intuitive in the displaying of the teaching aid, lively, it is that learner's explanation bend secondary flow principle can make to learn by the teaching aid therefore
Person is easier to understand bend secondary flow principle, and learner is made to reach better learning effect.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of teaching aid provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of bend provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of fixed frame provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of scoop provided by the embodiment of the utility model.
Icon: 100- teaching aid；110- provisioning component；112- sandbox；114- through-hole；116- water pump；118- first pipe；
120- second pipe；130- water inlet；150- bend；The first branch flow passage of 152-；The second branch flow passage of 154-；156- first is shunted
Dike；The second separation levee of 158-；160- notch；First outflux of 162-；164- third separation levee；The first turnout 166-；168-
Second turnout；The outlet of the first turnout 170-；The outlet of the second turnout 172-；174- sedimentation basin；180- fixed frame；182- first is collected
Pond；The second collecting pit of 184-；186- third collecting pit；The first filtration members of 188-；The second filtration members of 190-；The filtering of 192- third
Part；194- scoop.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the utility model embodiment, it should be noted that if occur term " on ", "lower", "horizontal",
The orientation or positional relationship of the instructions such as "inner" is to be based on the orientation or positional relationship shown in the drawings or the utility model product
The orientation or positional relationship usually put when use, is merely for convenience of describing the present invention and simplifying the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitations of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, term "horizontal" is not offered as requiring component abswolute level, but can be slightly tilted.
In the description of the utility model embodiment, it is also necessary to which explanation is unless specifically defined or limited otherwise, if
Appearance term " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to
It is detachably connected, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also lead to
It crosses intermediary to be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be with
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment
Fig. 1 is please referred to, Fig. 1 show the structural schematic diagram of teaching aid 100.The present embodiment provides a kind of teaching aids 100, main to use
In auxiliary interpretation staff to student show water-sediment movement in bend secondary flow phenomenon, in order to student more fully understand and grasp it is curved
Road circulation principle.Bend secondary flow principle in hydraulic engineering how preferably Jiang Shui and Sha carry out separation be of great significance,
Therefore understands that being of great significance with grasp bend secondary flow principle for water conservancy working person.
Teaching aid 100 provided in this embodiment is mainly including provisioning component 110 and the water inlet 130, the bend that are sequentially communicated
150, water outlet (not marked in figure).Provisioning component 110 is used to provide arsenicbearing gold ores to water inlet 130, in order to which student can be
The bend secondary flow phenomenon in water-sediment movement is observed in bend 150.Meanwhile flowing of the water flow in bend 150 makes to show more
Vividly, facilitate student and more fully understand and grasp bend secondary flow principle.
For the state that more preferable simulation silt is flowed with water flow, in the present embodiment, provisioning component 110 can also include sand
Box 112, sandbox 112 are used to launch the grains of sand to water inlet 130.Sandbox 112 is located at the top of water inlet 130, sandbox 112 continue into
Leakage is husky in the mouth of a river 130, and when water flow reaches 112 lower section of sandbox, water flow can take away the grains of sand leaked out in sandbox 112, and carry sand
Grain is entered in bend 150 by water inlet 130 together.For the smooth leakage for guaranteeing the grains of sand, sandbox 112 can be with further reference to hourglass
Shape be configured (certainly, in other embodiments, the shape of sandbox 112 is not limited, as long as the grains of sand can be launched into water flow
).In addition, more convenient in order to recycle the grains of sand, simulation silt is can be used in the grains of sand used in the present embodiment, simulates silt
Single particle size is bigger than general sand size.
Certainly, in other embodiments, the grains of sand can also be mixed with water in advance, then the arsenicbearing gold ores mixed are straight
It connects and is supplied to water inlet 130.
When teaching aid 100 leaves unused, for the storage convenient for the grains of sand in sandbox 112, through-hole can be further arranged in sandbox 112
114 and with the matched stopple (not shown) of through-hole 114.Stopple can turn on or off through-hole 114, when imparting knowledge to students
When displaying, through-hole 114 is opened, the grains of sand is allow to leak to water inlet 130；In the state of being shown without teaching, it can close
Through-hole 114 shows for teaching next time and has stored the grains of sand.
For the degree of automation for improving provisioning component 110, in the present embodiment, provisioning component 110 can also include water pump
116.After water pump 116 is powered, the water at water source can be pumped to water inlet 130, facilitate interpretation staff can be quickly to water flow movement
Situation is explained.
In the present embodiment, the opening and closing of water pump 116 are controlled by rotary switch (not shown in figure 1), and rotary switch is opened
When opening water pump 116, there is first grade and two kinds of second gear selection, first grade of pumping water is larger, the water flow of analog wet season
Situation；Second gear pumping water is smaller, the streamflow regime in analog dry season.The setting can be in order to student's paired observation bend
The water of water, the difference of flow velocity size and bend secondary flow Fen Shui, point husky effect in circulation principle.
For the recycling rate of waterused for improving water source, water outlet and water pump 116 further can be passed through first in the present embodiment
Pipeline 118 connects, and water inlet 130 is connected with water pump 116 by second pipe 120.Then water pump 116 can flow out water outlet
Water-circulating pump is sent to water inlet 130.The setting is also convenient for the carrying of teaching aid 100, reduces the trouble that user individually carries water source.
It certainly, can also be by the way of intaking manually to water inlet 130 in other embodiments.
In the present embodiment, bend 150 may include the first branch flow passage 152 and the second branch flow passage 154.First branch flow passage 152
And second be provided with the first separation levee 156 between branch flow passage 154.Wherein the horizontal plane of the first branch flow passage 152 is higher than the second tributary
The horizontal plane in road 154, i.e. the first branch flow passage 152 relative to the second branch flow passage 154 be convex bank side, the second branch flow passage 154 relative to
First branch flow passage 152 is concave bank side.After the husky water flow of the band of water inlet 130 flows into bend 150, water flow and the grains of sand all will be by first
Separation levee 156 shunts.
The variation of the concave-convex degree of first branch flow passage 152 and the second branch flow passage 154 will change the shunting feelings of water flow and the grains of sand
Condition.To make student be able to observe that the change of the variation due to runner bumps degree and bring tapping condition, in the present embodiment
It is adjustable can to set the plane of the plane of the first branch flow passage 152 and the second branch flow passage 154 to height, changes concave-convex journey to reach
The purpose of degree.For example, the fixed part of the plane of the first branch flow passage 152 and teaching aid 100 can be slidably connected, make the first branch flow passage
The height of 152 plane can be adjusted.The plane of second branch flow passage 154 can also be slided with the fixed part of teaching aid 100 to be connected
It connects, is adjusted the height of the plane of the second branch flow passage 154.
The change in location of first separation levee 156 will also cause the width of the first branch flow passage 152 and the second branch flow passage 154 to become
Change, and then leads to the variation of the tapping condition of water flow and the grains of sand.To enable student to recognize, the position of the first separation levee 156 becomes
Change and water flow, the grains of sand tapping condition variation between relationship, in the present embodiment, the position of the first separation levee 156 is adjustable.The
There are many adjustable set-up modes in one separation levee, 156 position, such as multiple fixed strips (figure is arranged in 156 bottom of the first separation levee
In be not shown), water passage surface opens up multiple with the matched jack (not shown) of fixed strip, and fixed strip is inserted into different insert
The position that the first separation levee 156 can be realized in hole is adjusted.
In the present embodiment under 156 present position of the first separation levee, water flow and grains of sand tapping condition are as follows:
When rotary switch opens first grade, the water of about 60vol% and the grains of sand of 80vol% can flow into the first branch flow passage
In 152, the water of about 40vol% and the grains of sand of 20vol% can be flowed into the second branch flow passage 154.
When rotary switch opens second gear, water stream will be varied widely, and the water of about 60vol% will flow into
In second branch flow passage 154, the water of about 40vol% will be flowed into the first branch flow passage 152.Water is bigger, and the grains of sand enter second
Runner 154 is fewer, and the shunting of the grains of sand has small scale variation, but changes less, generally imparts knowledge to students in showing it is considered that substantially not
Become.
The second separation levee 158 is additionally provided between first branch flow passage 152 and the second branch flow passage 154.First separation levee 156 packet
The first end (not marking in figure) and second end (not marking in figure) being oppositely arranged are included, second end is located at first end far from water inlet
130 side.Indwelling notch 160 between second end and the second separation levee 158 is so that the first branch flow passage 152 and the second branch flow passage
154 are interconnected.The horizontal plane of notch 160 is higher than the horizontal plane of the second branch flow passage 154.Being provided with for notch 160 is conducive to the
The grains of sand in two branch flow passages 154 are shunted again, the grains of sand content being further reduced in the second branch flow passage 154.
Since the sediment concentration flowed out in the first branch flow passage 152 and the second branch flow passage 154 is different, actual hydraulic engineering
In generally require to open up different water exports respectively for the first branch flow passage 152 and the second branch flow passage 154, two kinds of water flows are answered
With in different places.Quality for the water flow convenient for flowing out in student's two runners of observation is different, in the present embodiment, water outlet
Including first outflux 162 and second outflux (not marked in figure).First branch flow passage 152 and first outflux 162
It is interconnected, the second branch flow passage 154 and second outflux are interconnected.
Second branch flow passage 154 includes first segment (not marking in figure) and second segment (not marking in figure).Wherein, the first section
Between the second separation levee 158 and water inlet 130, second segment is between the second separation levee 158 and second outflux.In order to
Further point of sand is carried out to the water flow in the second branch flow passage 154, is also provided with third separation levee 164 in second segment.The
Second segment is divided into the first turnout 166 and the second turnout 168 by three separation levees 164.First turnout 166 is by third separation levee 164
It limits and is formed with the second separation levee 158.The horizontal plane on the first turnout 166 is higher than the horizontal plane on the second turnout 168.As shown in Figure 1,
The inlet calibre on the first turnout 166 is greater than the inlet calibre on the second turnout 168.When the water in the second branch flow passage 154 is with huge
When impact force flows to notch 160, it can be restricted by the entrance on the second narrow turnout 168 of its side, in addition third separation levee 164
Backwater effect, be formed about whirlpool in notch 160, the remaining grains of sand are largely got rid of to notch 160 in first segment water flow
Or there are the part grains of sand to enter in the first branch flow passage 152 simultaneously.
When it is first grade that rotary switch, which is opened, a large amount of water can be stopped by the entrance on the second turnout 168, and the water surface rises,
When the water surface is more than the notch 160 on side, water and sand will drain into the first branch flow passage 152 along notch 160, reach and shunt after first
Second of flood diversion sand discharge after dike 156.When it is second gear that rotary switch, which is opened, a large amount of water can be by the second turnout 168
Entrance stops, and the water surface rises, and when the water surface can not be more than the notch 160 on side, sand will be stayed on notch 160, reach after first
Second of sand discharge after separation levee 156.
Since the first turnout 166 is different with the silt content on the second turnout 168, the difference of effluent quality is arrived in order to facilitate observation of,
Second outflux includes the outlet 170 of the first turnout and the second turnout outlet 172 in the present embodiment, the first turnout outlet 170 with
First turnout 166 is interconnected, and the outlet 172 of the second turnout and the second turnout 168 are interconnected.Generally, after excessively sand, second
The water silt content of 172 outflow of turnout outlet is smaller compared with other outlets.
For the grains of sand content being further reduced in the second turnout 168, sedimentation basin 174 can also be set in first segment.Such as
Shown in Fig. 1, sedimentation basin 174 and the first separation levee 156 are relatively arranged on the two sides of first segment.Sedimentation basin 174 is relative to first segment
To lower recess, to guarantee the deposition effect of the grains of sand.When the water flow of the second branch flow passage 154 is formed about whirlpool in notch 160, largely
After the grains of sand are thrown out of notch 160, the remaining major part grains of sand can be deposited in the sedimentation basin 174 on 160 opposite of notch, reach further
Reduce the purpose of the grains of sand in the second turnout 168.After depositing certain grains of sand in sedimentation basin 174, the grains of sand can be dug out.
The structural schematic diagram of bend 150 is shown with further reference to Fig. 2, Fig. 2.It can be more clearly observed in Fig. 2
The horizontal plane height situation of each runner.
Referring to figure 3., Fig. 3 show the structural schematic diagram of fixed frame 180.For the portability for further increasing teaching aid 100,
Teaching aid 100 further includes fixed frame 180.In conjunction with Fig. 1 and Fig. 3 it is found that bend 150 is installed in fixed frame 180.Sandbox 112 and rotation
It turns on pass (not marking in Fig. 3) to be installed on fixed frame 180, water pump 116, first pipe 118, second pipe 120 are mounted on
In fixed frame 180, the portability of teaching aid 100 is substantially increased.
Finally concentration is recycled again by the flowing water of each outlet in this present embodiment, to avoid the grains of sand to water pump
116 damage, and convenient for recycling to the grains of sand, the first collecting pit 182, the second collecting pit 184 are installed on fixed frame 180
And third collecting pit 186.First outflux 162 and the first collecting pit 182 are interconnected, the first turnout outlet 170 and the
Two collecting pits 184 are interconnected, and the second turnout outlet 172 is interconnected with third collecting pit 186.First collecting pit 182, second
Collecting pit 184 and third collecting pit 186 are interconnected with first pipe 118.First collecting pit 182, the second collecting pit
184, the first filtration members 188, the second filtration members 190, third filtration members 192 are respectively set in third collecting pit 186, make in water flow
The grains of sand filtered out by each filtration members, both achieved the purpose that collect the grains of sand, also avoid the excessive grains of sand and enter water pump 116 to water
Pump 116 damages.Filtration members can be common strainer.
Referring to figure 4., Fig. 4 show the structural schematic diagram of scoop 194.For convenience of the collection of the grains of sand everywhere, can also be
Teaching aid 100 configures scoop 194.Containing cavities (not shown) can also be set on fixed frame 180, facilitated common in mold
The storage of small instruments and tools arranges, such as scoop 194, bridge mark, landmark can be stored etc..
The working principle of teaching aid 100 is:
Sandbox 112 is located at 130 top of water inlet, and sandbox 112 continues to leak sand into water inlet 130, when water flow reaches sandbox
When 112 lower section, water flow can take away the grains of sand leaked out in sandbox 112, and carry the grains of sand and enter bend 150 by water inlet 130 together
State interior, that more preferable simulation silt is flowed with water flow
The opening and closing of water pump 116 are controlled by rotary switch, rotary switch open water pump 116 when, have first grade and
Two kinds of second gear selections, first grade of pumping water is larger, the streamflow regime of analog wet season；Second gear pumping water is smaller,
The streamflow regime in analog dry season.When rotary switch opens first grade, the water of about 60vol% and the grains of sand of 80vol%
It can flow into the first branch flow passage 152, the water of about 40vol% and the grains of sand of 20vol% can flow into the second branch flow passage 154.When
When rotary switch opens second gear, water stream will be varied widely, and the water of about 60vol% will flow into the second branch flow passage
In 154, the water of about 40vol% will be flowed into the first branch flow passage 152.Water is bigger, and the grains of sand enter the second branch flow passage 154 and get over
Few, the shunting of the grains of sand has small scale and changes, but changes less, it is considered that being basically unchanged in general teaching displaying.
It, can be by its side narrow second when the water in the second branch flow passage 154 flows to notch 160 with huge impact force
The entrance on turnout 168 is restricted, in addition the backwater effect of third separation levee 164, is formed about whirlpool, first segment in notch 160
The remaining grains of sand are largely got rid of to having the part grains of sand to enter in the first branch flow passage 152 on notch 160 or simultaneously in water flow, are remained
Remaining most of grains of sand can be deposited in the sedimentation basin 174 on 160 opposite of notch.Generally, after excessively sand, the second turnout outlet 172
The water silt content of outflow is smaller compared with other outlets, in actual hydraulic engineering, can be made according to the setting of this kind of mode containing sand
Less water is measured for people's lives water.
After water flow is flowed out by each outlet, water pump 116 send the water-circulating pump that water outlet flows out to water inlet 130.First
The first filtration members 188, the second filtration members 190, is respectively set in third collecting pit 186 in collecting pit 182, the second collecting pit 184
Three filtration members 192 filter out the grains of sand in water flow by each filtration members, have both achieved the purpose that collect the grains of sand, also avoid excessive
The grains of sand enter water pump 116 water pump 116 damaged.
Teaching aid 100 provided in this embodiment can not only vivo show bend secondary flow phenomenon, enhance teaching efficiency, make to learn
The learning effect of member is more preferable, while student can also be allowed how preferably to utilize bend ring in hydraulic engineering deeper into ground study
Stream principle keeps point husky effect more preferable, reduces the subsequent purification pressure of people's domestic water.Certainly, in other embodiments, if only
It is that, in order to which student more fully understands, can also simply be arranged one without appointing to preferably show bend secondary flow phenomenon
The bend in what tributary.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of teaching aid, which is characterized in that including provisioning component and the water inlet being sequentially communicated, bend, water outlet, the confession
Answer component for providing arsenicbearing gold ores to the water inlet, the arsenicbearing gold ores that the provisioning component provides include first grade and second
Shelves, described first grade is used to simulate wet season streamflow regime, and the second gear is for simulating dry season streamflow regime, the bend
Including the first branch flow passage and the second branch flow passage, the first shunting is provided between first branch flow passage and second branch flow passage
Dike, the horizontal plane of first branch flow passage are higher than the horizontal plane of second branch flow passage, and the water outlet includes first outflow
Mouth and second outflux, first branch flow passage and first outflux are interconnected, second branch flow passage and institute
Second outflux is stated to be interconnected.
2. teaching aid according to claim 1, which is characterized in that the provisioning component includes sandbox, the sandbox be used for
The water inlet launches the grains of sand.
3. teaching aid according to claim 2, which is characterized in that the sandbox is equipped with through-hole and matched with the through-hole
Stopple, the stopple optionally open or close the through-hole.
4. teaching aid according to claim 1, which is characterized in that second branch flow passage is equipped with sedimentation basin, the sedimentation basin
The two sides of second branch flow passage are relatively arranged on first separation levee.
5. teaching aid according to claim 1, which is characterized in that between first branch flow passage and second branch flow passage also
It is provided with the second separation levee, first separation levee includes the first end and second end being oppositely arranged, and the second end is located at institute
Side of the first end far from the water inlet is stated, indwelling notch between the second end and second separation levee is so that described
One branch flow passage and second branch flow passage are interconnected, and the horizontal plane of the notch is higher than the horizontal plane of second branch flow passage.
6. teaching aid according to claim 5, which is characterized in that second branch flow passage includes first segment and second segment, institute
First segment is stated between second separation levee and the water inlet, the second segment be located at second separation levee with it is described
Between second outflux；Third separation levee is provided in the second segment, the third separation levee separates the second segment
For the first turnout and the second turnout, first turnout is limited with second separation levee by the third separation levee and is formed, institute
The horizontal plane for stating the first turnout is higher than the horizontal plane on second turnout；Second outflux include the first turnout outlet and
The outlet of second turnout, first turnout outlet are interconnected with first turnout, the second turnout outlet and described the
Two turnouts are interconnected.
7. teaching aid according to claim 6, which is characterized in that the inlet calibre on first turnout is greater than second trouble
The inlet calibre in road.
8. teaching aid according to claim 1, which is characterized in that the water outlet is connected with filtration members, and the filtration members are used
It is filtered out in by the grains of sand.
9. a kind of teaching aid, which is characterized in that including provisioning component and the water inlet being sequentially communicated, bend, water outlet, the confession
Answering component includes water pump, and the water outlet is connect with the water pump by first pipe, and the water inlet passes through with the water pump
Second pipe connection, the water pump are used to provide arsenicbearing gold ores to the water inlet.
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| CN201820317148.1U CN208834578U (en) | 2018-03-07 | 2018-03-07 | A kind of teaching aid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108198486A (en) * | 2018-03-07 | 2018-06-22 | 成都东软学院 | A kind of teaching aid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108198486A (en) * | 2018-03-07 | 2018-06-22 | 成都东软学院 | A kind of teaching aid |
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