CN204242458U - A kind of bio-science teaching aid - Google Patents
A kind of bio-science teaching aid Download PDFInfo
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- CN204242458U CN204242458U CN201420765053.8U CN201420765053U CN204242458U CN 204242458 U CN204242458 U CN 204242458U CN 201420765053 U CN201420765053 U CN 201420765053U CN 204242458 U CN204242458 U CN 204242458U
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Abstract
The utility model provides a kind of bio-science teaching aid, belongs to teaching field of mechanical technique.It solve in prior art and the test tube be clamped on teaching aid can not be made to carry out rotating the problem controlled.This bio-science teaching aid, comprise base, base is provided with rotation axis, rotation axis is fixed with disk, disk offers mounting hole, disk is provided with test tube clamp, the jaws of test tube clamp is in mounting hole place, and rotation axis top is fixed with head bearing, and head bearing is outside equipped with top chock, top chock is outer sheathed and be fixed with back up pad, back up pad lower face is fixed on base by column, and back up pad offers blanking hole, is fixed with funnel in blanking hole, base is provided with location structure, and rotation axis is connected with actuating unit.The utility model has can make the test tube be clamped on teaching aid carry out rotation control, is conducive to the advantage of carrying out contrasting and observing in process of the test.
Description
Technical field
The utility model belongs to teaching field of mechanical technique, relates to a kind of teaching aid, particularly a kind of bio-science teaching aid.
Background technology
In bioconversion medium, biological scientific experiment can make student more intuitively, visually can understand the content of courses, thus improves the learning interest of student, enriches perceptual knowledge, and helps to form clear and definite concept, the observation ability of Developing Students ' and thinking ability.But, existing biology teaching aid is not very perfect, more complicated test often needs a few individual jointly to assist to carry out, thus block the observation of other students to experimental phenomena, simultaneously, needing to heat, add in the test of the process such as trier, the many hands of people are assorted closely to be operated, and also can there is certain potential safety hazard.
Owing to there is above-mentioned problem, scientific research personnel improves on existing biology teaching aid, through retrieval, as Chinese patent literature discloses a kind of bioconversion medium apparatus for demonstrating [patent No.: ZL201320042293.0; Authorization Notice No.: CN203055245U].This bioconversion medium apparatus for demonstrating, technical scheme is: comprise supporting seat, stretch pull bar, strut, little iron ring, large iron ring, test tube clamp, stretching pull bar is fixed on supporting seat, described supporting seat bottom is provided with strut, stretch pull bar top and fix large iron ring and little iron ring by fastening bolt, the top of stretching pull bar is provided with test tube clamp.
But, still there is certain deficiency in this bioconversion medium apparatus for demonstrating, it is not very stable that the single utilization test tube clamp stretched on pull bar carries out clamping to test tube, comparatively dense is compared between test tube, and stretch pull bar and can not automatically rotate, the comparison being not easy to test, observe and carry out other process.So, those skilled in the art are need to develop a kind of test tube be clamped on teaching aid that can make and carry out the bio-science teaching aid rotated, thus be more convenient for comparing, viewing test.
Utility model content
The purpose of this utility model there are the problems referred to above for existing technology, propose a kind of bio-science teaching aid, this bio-science teaching aid has can be made the test tube be clamped on teaching aid carry out rotation to control, thus is more conducive to the feature of carrying out contrasting and observing in process of the test.
The purpose of this utility model realizes by following technical proposal: bio-science teaching aid, comprise base, on described base by axial restraint and circumference rotate mode be provided with rotation axis, disk is fixed with in the middle part of described rotation axis, the card of described disk evenly offers some mounting holes, distance between the center of the Kong Xinyu disk of each mounting hole is all identical, described disk is provided with some test tube clamps corresponding with mounting hole, the jaws of described test tube clamp is in mounting hole place, described rotation axis top is fixed with head bearing, described head bearing is outside equipped with top chock, described top chock is outer sheathed and be fixed with back up pad, described back up pad lower face is fixed on base by some columns, described back up pad offers blanking hole, funnel is fixed with in described blanking hole, described its lower portion is discharging opening, described discharging opening can be in directly over one of them mounting hole, described base is provided with the location structure for locating spirit lamp, described rotation axis and one can drive its actuating unit rotated to be connected.
The principle of work of this bio-science teaching aid is such: 1, disk is provided with mounting hole, and be provided with test tube clamp with mounting hole corresponding section, thus realize in teaching test process to the clamping of test tube, avoid direct body contact's tube manipulation and cause unnecessary potential safety hazard; 2, on base, be fixed with back up pad by column, in its discharge opening, be fixed with funnel, thus be convenient to add test reactant to adding the test tube be held on disk; 3, by the location structure that base is provided with, thus realization is safer, firm to fixing of spirit lamp; 4, rotation axis is rotated by bearing seat and arranges on the supporting plate, drives the rotation of rotation axis by actuating unit, thus disc rotated, the contrast being more conducive to testing the test tube be clamped on disk, observation.
In above-mentioned bio-science teaching aid, described location structure comprises the pilot hole be opened on base, and described pilot hole can be in immediately below one of them mounting hole, and the hole wall of described pilot hole is fixed with flexible centring ring.It is fixing that spirit lamp utilizes the centring ring on pilot hole and pilot hole to carry out on position, thus safer, easily the test tube be clamped on test tube clamp is heated.
In above-mentioned bio-science teaching aid, described actuating unit comprises stepper motor, driving gear and follower gear, described stepper motor is fixed on base, described driving gear is fixed on the output shaft of stepper motor, follower gear is fixing on the rotating shaft, and described driving gear and follower gear are meshed.Stepper motor drives driving gear to rotate, and driving gear drives the follower gear that is meshed with it to rotate, thus realizes rotating the rotation axis be fixed on follower gear.
In above-mentioned bio-science teaching aid, the material of described centring ring is rubber.Thus ensure that centring ring has certain friction force and elasticity.
In above-mentioned bio-science teaching aid, the discharge outlet of described funnel is fixed with discharge nozzle.Discharge nozzle mainly can play the effect of drainage.
In above-mentioned bio-science teaching aid, the distance between described discharge nozzle lower end and back up pad upper face is 2cm-3cm.
In above-mentioned bio-science teaching aid, the quantity of described mounting hole is 6-12.
Compared with prior art, this bio-science teaching aid has the following advantages:
1, the utility model drives driving gear and the follower gear that is meshed with it to rotate by stepper motor, thus drives rotation axis to rotate, the contrast being more conducive to testing the test tube be clamped on disk, observation.
What 2, spirit lamp of the present utility model utilized pilot hole and centring ring to carry out on position is fixing, thus safer, easily the test tube be clamped on test tube clamp is heated.
3, back up pad of the present utility model is provided with funnel, and funnel discharging opening is fixed with discharge nozzle, thus is convenient to add test reactant to test tube.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 of the present utility modelly faces structural representation.
In figure, 1, base; 2, rotation axis; 3, disk; 4, mounting hole; 5, test tube clamp; 6, head bearing; 7, top chock; 8, back up pad; 9, funnel; 10, discharge nozzle; 11, column; 12, pilot hole; 13, centring ring; 14, stepper motor; 15, driving gear; 16, follower gear; 17, test tube.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, a kind of bio-science teaching aid, comprises base 1.Specifically, on base 1 by axial restraint and circumference rotate mode be provided with rotation axis 2, be fixed with disk 3 in the middle part of rotation axis 2, the card of disk 3 evenly offer six mounting holes 4, wherein, the distance between the center of the Kong Xinyu disk 3 of each mounting hole 4 is all identical.Disk 3 is provided with six test tubes 17 corresponding with mounting hole 4 and presss from both sides 5, the jaws that test tube 17 presss from both sides 5 is in mounting hole 4 place.Meanwhile, rotation axis 2 top is fixed with head bearing 6, and head bearing 6 is outside equipped with top chock 7, and top chock 7 is outer sheathed and be fixed with back up pad 8.Be fixed with lower bearing bottom rotation axis 2, lower bearing is outside equipped with step, and meanwhile, base 1 also offers the groove matched with step, step arranges and is fixed in groove.Back up pad 8 lower face is fixed on base 1 by three root posts 11.Back up pad 8 offers blanking hole, is fixed with funnel 9 in blanking hole, and funnel 9 bottom is discharging opening, and discharging opening can be in directly over one of them mounting hole 4.The discharge outlet of funnel 9 is fixed with discharge nozzle 10, and discharge nozzle 10 mainly can play the effect of drainage.Distance between discharge nozzle 10 lower end and back up pad 8 upper face is 2cm-3cm.
In addition, rotation axis 2 is connected with the actuating unit that it can be driven to rotate.Specifically, actuating unit comprises stepper motor 14, driving gear 15 and follower gear 16, and stepper motor 14 is fixed on base 1, and driving gear 15 is fixed on the output shaft of stepper motor 14, follower gear 16 is fixed on rotation axis 2, and driving gear 15 and follower gear 16 are meshed.Stepper motor 14 drives driving gear 15 to rotate, and driving gear 15 drives the follower gear 16 that is meshed with it to rotate, thus realizes rotating the rotation axis 2 be fixed on follower gear 16.
Base 1 is also provided with the location structure for locating spirit lamp.Specifically, location structure comprises the pilot hole 12 be opened on base 1, and pilot hole 12 can be in immediately below one of them mounting hole 4, and the hole wall of pilot hole 12 is fixed with flexible centring ring.It is fixing that spirit lamp utilizes the centring ring on pilot hole 12 and pilot hole 12 to carry out on position, thus safer, heat being clamped in the test tube 17 that test tube 17 presss from both sides on 5 easily.In addition, the material of centring ring is rubber, thus ensures that centring ring has certain friction force and elasticity.
Generally speaking, the principle of work of this bio-science teaching aid is such: 1, disk 3 is provided with mounting hole 4, and be provided with test tube 17 with mounting hole 4 corresponding section and press from both sides 5, thus realize in teaching test process to the clamping of test tube 17, avoid direct body contact's test tube 17 operate and cause unnecessary potential safety hazard; 2, on base 1, be fixed with back up pad 8 by column 11, in its discharge opening, be fixed with funnel 9, thus be convenient to add test reactant to adding the test tube 17 be held on disk 3; 3, spirit lamp utilizes pilot hole 12 and centring ring to carry out fixing on position, thus realization is safer, firm to fixing of spirit lamp; 4, rotation axis 2 is rotated by bearing seat and is arranged in back up pad 8, stepper motor 14 drives driving gear 15 and the follower gear 16 that is meshed with it rotates, drive rotation axis 2 to rotate, thus the contrast being more conducive to testing the test tube 17 be clamped on disk 3, observation.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ 1 herein, base; 2, rotation axis; 3, disk; 4, mounting hole; 5, test tube clamp; 6, head bearing; 7, top chock; 8, back up pad; 9, funnel; 10, discharge nozzle; 11, column; 12, pilot hole; 13, centring ring; 14, stepper motor; 15, driving gear; 16, follower gear; 17, the term such as test tube, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (6)
1. a bio-science teaching aid, comprise base, on described base by axial restraint and circumference rotate mode be provided with rotation axis, disk is fixed with in the middle part of described rotation axis, the card of described disk evenly offers some mounting holes, distance between the center of the Kong Xinyu disk of each mounting hole is all identical, described disk is provided with some test tube clamps corresponding with mounting hole, the jaws of described test tube clamp is in mounting hole place, described rotation axis top is fixed with head bearing, described head bearing is outside equipped with top chock, described top chock is outer sheathed and be fixed with back up pad, described back up pad lower face is fixed on base by some columns, described back up pad offers blanking hole, funnel is fixed with in described blanking hole, described its lower portion is discharging opening, described discharging opening can be in directly over one of them mounting hole, described base is provided with the location structure for locating spirit lamp, described rotation axis and one can drive its actuating unit rotated to be connected, described actuating unit comprises stepper motor, driving gear and follower gear, described stepper motor is fixed on base, described driving gear is fixed on the output shaft of stepper motor, and follower gear is fixing on the rotating shaft, and described driving gear and follower gear are meshed.
2. bio-science teaching aid according to claim 1, it is characterized in that, described location structure comprises the pilot hole be opened on base, and described pilot hole can be in immediately below one of them mounting hole, and the hole wall of described pilot hole is fixed with flexible centring ring.
3. bio-science teaching aid according to claim 2, is characterized in that, the material of described centring ring is rubber.
4. bio-science teaching aid according to claim 1, is characterized in that, the discharge outlet of described funnel is fixed with discharge nozzle.
5. bio-science teaching aid according to claim 1, is characterized in that, the distance between described discharge nozzle lower end and back up pad upper face is 2cm-3cm.
6. bio-science teaching aid according to claim 1, is characterized in that, the quantity of described mounting hole is 6-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765053.8U CN204242458U (en) | 2014-12-08 | 2014-12-08 | A kind of bio-science teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765053.8U CN204242458U (en) | 2014-12-08 | 2014-12-08 | A kind of bio-science teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204242458U true CN204242458U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420765053.8U Expired - Fee Related CN204242458U (en) | 2014-12-08 | 2014-12-08 | A kind of bio-science teaching aid |
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| Country | Link |
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| CN (1) | CN204242458U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944172A (en) * | 2017-05-22 | 2017-07-14 | 嘉兴市产品质量检验检测院 | A kind of chemical analysis separating funnel stand |
| CN107185621A (en) * | 2017-07-14 | 2017-09-22 | 无锡市跨克微营养素有限公司 | Possesses the rack for test tube that many test tubes clamp heating function |
| WO2018090476A1 (en) * | 2016-11-17 | 2018-05-24 | 深圳市华星光电技术有限公司 | Mixing system, mixer, and holding device thereof |
-
2014
- 2014-12-08 CN CN201420765053.8U patent/CN204242458U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018090476A1 (en) * | 2016-11-17 | 2018-05-24 | 深圳市华星光电技术有限公司 | Mixing system, mixer, and holding device thereof |
| CN106944172A (en) * | 2017-05-22 | 2017-07-14 | 嘉兴市产品质量检验检测院 | A kind of chemical analysis separating funnel stand |
| CN107185621A (en) * | 2017-07-14 | 2017-09-22 | 无锡市跨克微营养素有限公司 | Possesses the rack for test tube that many test tubes clamp heating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20151208 |
|
| EXPY | Termination of patent right or utility model |