CN209373895U - A kind of chemistry teaching demonstration umbrella - Google Patents
A kind of chemistry teaching demonstration umbrella Download PDFInfo
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- CN209373895U CN209373895U CN201821855621.8U CN201821855621U CN209373895U CN 209373895 U CN209373895 U CN 209373895U CN 201821855621 U CN201821855621 U CN 201821855621U CN 209373895 U CN209373895 U CN 209373895U
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- umbrella
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Abstract
The utility model discloses a kind of chemistry teachings to demonstrate umbrella, it is related to chemistry teaching appliance technology, this chemistry teaching demonstration pack includes umbrella head, umbrella cover, umbrella stem and umbrella shank, umbrella head includes the reservoir on top, the liquid storage trough floor and lower part that are provided with liquid-leaking nozzle are equipped with the control panel of the delivery hole of L-type, umbrella cover is through installation and in control panel upper end, umbrella cover includes umbrella frame, umbrella frame is divided into several continuous the umbrella cover but disconnected fan-shaped region is used to chemically react region, chemical reaction and device are combined and prepare teaching demonstration umbrella, to demonstrate chemical knowledge therein, promote the learning enthusiasm of student, simultaneously because manufacturing device is cheap, plant bulk is small light-weight, it is easy to carry, therefore experiment teaching aid can be carried out when carrying out theoretical instruction with hall completely, and one can be equipped with for each classmate, simultaneously, Experiment consumption can be reduced using micromation equipment, teaching efficiency is promoted, achievees the purpose that impart knowledge and educate people and neglect neither with low consumption.
Description
Technical field
The utility model relates to chemistry teaching appliance technologies, particularly relate to a kind of chemistry teaching demonstration umbrella.
Background technique
Precipitating dissolution equilibrium refers to be deposited between the ion of refractory tungsten alloys crystal at a certain temperature and dissolution in the solution
In the balance for dissolving and crystallizing, referred to as multinomial ionic equilibrium, also referred to as precipitating dissolution equilibrium.The characteristics of dissolution equilibrium is that dynamic is flat
Weighing apparatus, i.e. rate of dissolution are equal to crystalline rate, and are not equal to zero.Balance will be broken under the proper conditions, and foundation is solubility product
Rule:
Under certain temperature, the ion concentration product of something in water is Qc；
Work as Qc > Ksp, solution supersaturation has Precipitation, until solution reaches new balance；
Work as Qc=Ksp, solution is saturated just, is precipitated with dissolution in equilibrium state；
As Qc < Ksp, solution is not up to saturated, no Precipitation, if excessive refractory tungsten alloys are added, refractory tungsten alloys are molten
Solution is saturated until solution.This is summary of the refractory tungsten alloys about precipitating generation and dissolution equilibrium movement law.In teaching process
Middle control ion concentration, so that it may so that system generates precipitating or dissolves precipitating, be very important knowledge point, but student learns
Practise get up it is extremely difficult, inventor according to oneself give lessons empirical studies find, teacher is often carried out with test tube etc. on classroom
Teaching demonstration, but test tube volume is larger, can only demonstrate cannot allow classmate oneself to carry out experimental implementation, and inventor had once invented use
In the teaching microchip for demonstrating these experiments, hand size can carry out the chemical reaction between up to 6 kinds of substances, portable
Property it is good, facilitate student to carry out experiment and realize teaching combining theory with practice, but since chip conversion zone is smaller, observation of students phenomenon
It is less obvious, be also inconvenient to show sometimes when teacher demonstrates.
Utility model content
In view of this, the purpose of this utility model is that propose a kind of chemistry teaching demonstration umbrella, it is above-mentioned existing for overcoming
The all or part of deficiency of teaching aid in technology.
A kind of chemistry teaching demonstration umbrella is provided based on above-mentioned purpose the utility model, the teaching demonstration umbrella includes:
Umbrella head, the umbrella head include the control panel of the reservoir on top, liquid storage trough floor and lower part, the liquid storage trough floor
On be provided with liquid-leaking nozzle, the liquid-leaking nozzle can form channel with the control panel by rotation, and the control panel upper end, which is provided with, to be used for
The delivery hole of drain, the inlet of the delivery hole match with the liquid-leaking nozzle；
Umbrella cover, the umbrella cover through installation on the control panel, and continuous but disconnected sector including several
Region, the fan-shaped region has dress sap cavity body, and upper end is equipped with the catheter being connected to the liquid outlet of the delivery hole；
Umbrella stem, the upper end of the umbrella stem are mounted on the lower end of the control panel；
Umbrella shank, the upper end of the umbrella shank are flexibly connected with the lower end of the umbrella stem.
In some optional embodiments, the lower end of the liquid storage trough floor is equipped with chimb, and the outer wall of the chimb is equipped with
The upward claw of at least one opening, for rotating fixation.
In some optional embodiments, the control panel upper surface, which is equipped with, thinks matched groove with the chimb, described recessed
Slot is equipped with the downward claw of at least one opening, and during installation, the chimb is inserted into the groove, and by described in rotation
Liquid storage trough floor makes the claw of upper and lower opening be fixed, and the control panel lower end surface is equipped with internal thread groove, described for installing
Umbrella stem.
In some optional embodiments, the delivery hole is L-type.
In some optional embodiments, the umbrella cover further includes umbrella frame, and the umbrella cover is not divided into continuously but not by the umbrella frame
The fan-shaped region of connection, the lower end of the fan-shaped region and the umbrella frame junction are equipped with control hole, for deflating or/and putting
Liquid.
In some optional embodiments, the umbrella cover is prepared for flexible high molecular material.
In some optional embodiments, the inlet of the catheter and the liquid outlet of the delivery hole are spirally connected, described to lead
The liquid outlet of liquid pipe is located in the dress sap cavity of the fan-shaped region.
In some optional embodiments, the umbrella stem is telescopic rod.
In some optional embodiments, the lower end of the umbrella shank is equipped with universal wheel.
In some optional embodiments, the reservoir can be furnished with matched boost motor, use when liquid is added
In acceleration liquid flowing.
From the above it can be seen that a kind of chemistry teaching provided by the utility model demonstrates umbrella, by simple stage property and
Chemical reagent is combined together, and pushes different liquids to fan-shaped region by rotation liquid storage trough floor, fan-shaped region is extended to
Umbrella cover allows umbrella cover the different color such as transparent, white, yellow, transparent, black occur and becomes by the reaction between different solutions
Change, is convenient for observation of students, promotes the learning enthusiasm of student, simultaneously because manufacturing device is cheap, the small weight of plant bulk
Gently, easy to carry, therefore experiment teaching aid can be carried out when carrying out theoretical instruction with hall completely, and can be matched for each classmate
Standby one, meanwhile, experiment consumption can be reduced using micromation equipment, promotes teaching efficiency, reaches and imparts knowledge and educates people and low consumption
The purpose neglected neither.
Detailed description of the invention
Fig. 1 is that the utility model embodiment chemistry teaching demonstrates umbrella schematic diagram；
Fig. 2 is that the utility model embodiment chemistry teaching demonstrates umbrella schematic top plan view；
Fig. 3 is the utility model embodiment liquid storage trough floor schematic top plan view；
Fig. 4 is the utility model embodiment liquid storage trough floor diagrammatic cross-section；
Fig. 5 is the utility model embodiment control panel schematic top plan view；
Fig. 6 is the utility model embodiment control panel schematic side view
Fig. 7 is the utility model embodiment control panel diagrammatic cross-section.
Umbrella head -1, umbrella cover -2, umbrella stem -3, umbrella shank -4, reservoir -11, liquid storage trough floor -12, control panel -13, catheter -
21, fan-shaped region -22, umbrella frame -23, universal wheel -41, liquid-leaking nozzle -121, chimb -122, groove -131, delivery hole -132, spiral shell
Line -133, internal thread groove -134.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with specific embodiment, and
Referring to attached drawing, the utility model is further described.
The learning enthusiasm of uninteresting chemical knowledge is precipitated in order to improve student to dissolution, and reduces current test apparatus not
It is convenient for carrying and the disadvantage of operability difference, the utility model provides a kind of chemistry teaching demonstration umbrella, the teaching demonstration pack
It includes:
Umbrella head, the umbrella head include the control panel of the reservoir on top, liquid storage trough floor and lower part, the liquid storage trough floor
On be provided with liquid-leaking nozzle, the liquid-leaking nozzle can form channel with the control panel by rotation, and the control panel upper end, which is provided with, to be used for
The delivery hole of drain, the inlet of the delivery hole match with the liquid-leaking nozzle；
Umbrella cover, the umbrella cover through installation on the control panel, and continuous but disconnected sector including several
Region, the fan-shaped region has dress sap cavity body, and upper end is equipped with the catheter being connected to the liquid outlet of the delivery hole；
Umbrella stem, the upper end of the umbrella stem are mounted on the lower end of the control panel；
Umbrella shank, the upper end of the umbrella shank are flexibly connected with the lower end of the umbrella stem.
A kind of chemistry teaching provided by the utility model demonstrates umbrella, and structure is as illustrated in fig. 1 and 2, the teaching demonstration pack
Include: umbrella head 1, umbrella cover 2, umbrella stem 3 and umbrella shank 4, the umbrella head 1 include reservoir 11, liquid storage trough floor 12 and the lower part on top
Control panel 13, the control panel 13 are equipped with the umbrella cover 2 by upper-end part of driving, and the umbrella cover 2 is through installation and in the control
The umbrella cover 2 is divided into several continuous but disconnected fan by 13 upper end of plate, the umbrella cover 2 including umbrella frame 23 described in umbrella frame 23
Shape region 22, the fan-shaped region 22 have dress sap cavity body, and for the reaction of chemical reagent, the upper end of the fan-shaped region 22 enters
The catheter 21 for drain is equipped at mouthful, the liquid outlet of catheter 21 is located at the dress sap cavity upper end of the fan-shaped region 22, and
21 inlet of catheter is connected to control panel 13, when being chemically reacted, passes through liquid storage trough floor after liquid is added from umbrella head 1
12 and the cooperation control chemical reagent of control panel 13 be flowed into fan-shaped region 22 through catheter 21 from umbrella head 1 and chemically reacted.
Meanwhile the lower end of the fan-shaped region 22 and 23 junction of umbrella frame, control hole is manually controlled equipped with control hole (not shown)
Push And Release, for deflate or/and tapping, action principle it is similar with bulb shape separatory funnel.The umbrella stem 3 is stretching for stretching structure
Contracting bar, and the upper end of umbrella stem 3 is mounted on the lower end of the control panel 13, and uses screw connection, carrying easy to disassemble.The umbrella stem
3 lower end is mounted on the upper surface of the umbrella shank 4, equally uses screw connection, is conducive to disassembly and carries, the following table of the umbrella shank 4
Face installation there are four universal wheel 41, and universal wheel 41 be it is fixable, be conducive to the movement for doing experimental demonstration and fixation.Change simultaneously
The umbrella cover 2 for learning teaching demonstration umbrella is prepared using the high molecular material of flexible and transparent, is on the one hand conducive to packing up for umbrella cover 2
The observation of Chemical Experimental Phenomena is carried and does, the plasticity of another aspect flexible high molecular material is strong, and light, and it is cheap,
Reduce the manufacturing cost of chemistry teaching demonstration umbrella.
In order to guarantee conversion zone controllable of whole device and while do multiple groups experiment, one kind provided by the utility model
Chemistry teaching demonstration umbrella has carried out special design in liquid storage trough floor 12 and control panel 13, for the use of control chemistry
The fan-shaped region 22 of the inflow of reagent, wherein 12 structure of liquid storage trough floor is as shown in Figures 3 and 4, opens in the liquid storage trough floor 12
There is liquid-leaking nozzle 121, the liquid-leaking nozzle 121 is used for the instillation of chemical reagent, while 12 lower part of liquid storage trough floor is additionally provided with chimb
122, the outer wall of the chimb 122 is equipped with the upward claw (not shown) of at least one opening, for rotating fixation.Equally,
As illustrated in figs. 5-7, in order to be used cooperatively with liquid storage trough floor 12,13 upper surface of control panel is equipped with and 122 phase of chimb
Matched groove 131,131 inner wall of groove are equipped with the downward claw (not shown) of at least one opening, during installation, institute
It states chimb 122 to be inserted into the groove 131, and engage the claw of upper and lower opening admittedly by rotating the liquid storage trough floor 12
Fixed, for flowing downstream into the fan-shaped region 22 for chemical reagent, 13 upper end of control panel is provided with the L-type for drain
Delivery hole 132, the inlet of the delivery hole 132 matches with the liquid-leaking nozzle 121, and can close closely sealed, the drain
The exit in hole 132 is equipped with the screw thread 133 being flexibly connected with 21 inlet of catheter, facilitates the disassembly of whole device, clearly
Replacement components are washed and repair, meanwhile, in order to be flexibly connected with the umbrella stem 3,13 lower end surface of control panel is equipped with interior spiral shell
Groove 134, for installing the umbrella stem 3.
In some optional embodiments, in order to which flowing rapidly into fan-shaped region 22 for chemical reagent is chemically reacted,
Can be furnished with matched boost motor in reservoir 11, when liquid is added for accelerating liquid to flow.
The demonstration of device use process is as follows: in no dropwise addition chemical reagent, will be leaked by rotation liquid storage trough floor 12
Fluid apertures 121 misplaces with the delivery hole 132 on control panel 13, and the liquid being added dropwise at this time can only be stored in reservoir 11, no
It can flow downstream into, liquid can be poured out directly from reservoir 11, and the cleaning of umbrella head 1 is conducive to.It needs to carry out laboratory, pass through
The delivery hole 132 on liquid-leaking nozzle 121 and control panel 13 is correspondingly formed channel by rotation liquid storage trough floor 12 again, in order to careful
Observation phenomenon, the size in channel aperture can be formed by controlling, control the flow velocity of chemical reagent, observation chemical reaction needs
After carrying out recombination reaction, continue that another chemical reagent is added into identical fan-shaped region 22 dress sap cavity body, to chemical anti-
After the completion of answering, reaction solution can be released from the control hole of 22 lower end of fan-shaped region, while sap cavity body is filled to fan-shaped region 22 and is carried out clearly
It washes, it is easy to operate, since umbrella cover 2 has multiple continuous disconnected fan-shaped regions 22, multiple groups experiment can be carried out simultaneously.
In some optional embodiments, experimental implementation is carried out using chemistry teaching provided by the utility model demonstration umbrella, it will
Certain density NaCl and K2CrO4Mixed solution is injected by the liquid-leaking nozzle 121 of liquid storage trough floor 12, is flowed through on control panel 13
Delivery hole 132, and by catheter 21 be flowed into fan-shaped region 22 fill sap cavity body microreactor in, then by AgNO3It is water-soluble
Liquid, which continuously adds, can observe that fan-shaped region 22 fills the AgCl precipitating that white is first generated in sap cavity body, continuously add AgNO3
Ultimately produce brick-red Ag2CrO4Precipitating, continuing to be implanted sequentially the substances such as ammonium hydroxide, NaBr i.e. can be observed to precipitate in solution
The phenomenon that dissolution, precipitating appearance, precipitating are redissolved, fan-shaped region 22 (it is red-transparent-light yellow-saturating then to there is white-
Bright-yellow-black various change, it appears that as magic, teacher's cooperation each time explain and will make by color change
The knowledge of this respect can more intuitively be understood by obtaining classmate.
Using making chemical reagent make one on the device basic teaching demonstration umbrella, it is contemplated that by controlling liquid-leaking nozzle
121 with the positional relationship of delivery hole 132, push in different liquids to different fan-shaped regions 22, by the reaction of fan-shaped region 22
It is extended to umbrella cover 2, allows umbrella cover 2 transparent, white, yellow, transparent, black etc. occur by the reaction between different solutions different
Color change achievees the purpose that us with very simple material to demonstrate chemical knowledge to demonstrate chemical knowledge therein.It mentions
It enters a higher school raw learning enthusiasm, simultaneously because manufacturing device is cheap, plant bulk is small light-weight, easy to carry therefore real
Testing teaching aid can carry out when carrying out theoretical instruction with hall completely, and one can be equipped with for each classmate, meanwhile, use is micro-
Type equipment can reduce experiment consumption, promote teaching efficiency, achieve the purpose that impart knowledge and educate people and neglect neither with low consumption.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under the thinking of the utility model, the above reality
Applying can also be combined between the technical characteristic in example or different embodiments, and there are the utility model as described above
Many other variations of different aspect, for simplicity, they do not exist.
Claims (10)
1. a kind of chemistry teaching demonstrates umbrella, which is characterized in that the teaching demonstration umbrella includes:
Umbrella head (1), the umbrella head (1) include reservoir (11), liquid storage trough floor (12) and the control panel (13) of lower part on top,
It is provided with liquid-leaking nozzle (121) on the liquid storage trough floor (12), the liquid-leaking nozzle (121) can be with the control panel (13) by rotation
Channel is formed, control panel (13) upper end is provided with the delivery hole (132) for drain, the inlet of the delivery hole (132)
Match with the liquid-leaking nozzle (121)；
Umbrella cover (2), the umbrella cover (2) through installation on the control panel (13), and it is continuous including several but be not connected to
Fan-shaped region (22), the fan-shaped region (22) have dress sap cavity body, and upper end be equipped with the delivery hole (132) go out liquid
The catheter (21) of mouth connection；
The upper end of umbrella stem (3), the umbrella stem (3) is mounted on the lower end of the control panel (13)；
The upper end of umbrella shank (4), the umbrella shank (4) is flexibly connected with the lower end of the umbrella stem (3).
2. chemistry teaching according to claim 1 demonstrates umbrella, which is characterized in that the lower end of the liquid storage trough floor (12) is set
Have chimb (122), the outer wall of the chimb (122) is equipped with the upward claw of at least one opening, for rotating fixation.
3. chemistry teaching according to claim 2 demonstrates umbrella, which is characterized in that control panel (13) upper surface be equipped with
The chimb (122) thinks matched groove (131) that the groove (131) is equipped with the downward claw of at least one opening, is installing
When, the chimb (122) is inserted into the groove (131), and makes upper and lower opening by rotating the liquid storage trough floor (12)
Claw be fixed, control panel (13) lower end surface be equipped with internal thread groove (134), for installing the umbrella stem (3).
4. chemistry teaching according to claim 1 demonstrates umbrella, which is characterized in that the delivery hole (132) is L-type.
5. chemistry teaching according to claim 1 demonstrates umbrella, which is characterized in that the umbrella cover (2) further includes umbrella frame (23),
The umbrella cover (2) is divided into continuous but disconnected fan-shaped region (22) by the umbrella frame (23), under the fan-shaped region (22)
End and the umbrella frame (23) junction, are equipped with control hole, for deflation or/and tapping.
6. chemistry teaching demonstrates umbrella according to claim 1 or 5, which is characterized in that the umbrella cover (2) is that flexible and transparent is high
Molecular material is prepared.
7. chemistry teaching according to claim 1 demonstrates umbrella, which is characterized in that the inlet of the catheter (21) and institute
The liquid outlet for stating delivery hole (132) is spirally connected, and the liquid outlet of the catheter (21) is located at the dress sap cavity of the fan-shaped region (22)
It is interior.
8. chemistry teaching according to claim 1 demonstrates umbrella, which is characterized in that the umbrella stem (3) is telescopic rod.
9. chemistry teaching according to claim 1 demonstrates umbrella, which is characterized in that the lower end of the umbrella shank (4) is equipped with ten thousand
To wheel (41).
10. chemistry teaching according to claim 1 demonstrates umbrella, which is characterized in that the reservoir (11) can be equipped with therewith
The boost motor to match, when liquid is added for accelerating liquid to flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821855621.8U CN209373895U (en) | 2018-11-12 | 2018-11-12 | A kind of chemistry teaching demonstration umbrella |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821855621.8U CN209373895U (en) | 2018-11-12 | 2018-11-12 | A kind of chemistry teaching demonstration umbrella |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209373895U true CN209373895U (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821855621.8U Active CN209373895U (en) | 2018-11-12 | 2018-11-12 | A kind of chemistry teaching demonstration umbrella |
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| Country | Link |
|---|---|
| CN (1) | CN209373895U (en) |
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2018
- 2018-11-12 CN CN201821855621.8U patent/CN209373895U/en active Active
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