CN204724209U - A kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement - Google Patents
A kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement Download PDFInfo
- Publication number
- CN204724209U CN204724209U CN201520362166.8U CN201520362166U CN204724209U CN 204724209 U CN204724209 U CN 204724209U CN 201520362166 U CN201520362166 U CN 201520362166U CN 204724209 U CN204724209 U CN 204724209U
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- China
- Prior art keywords
- test tube
- support column
- teaching demonstration
- convenient
- screw rod
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Abstract
The utility model discloses a kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement, comprise base, first support column, second support column, fixed mount and fixed head, first support column and the second support column are equipped with fixed leg, fixed mount is arranged on fixed leg, fixed leg is provided with the hold-down screw for fixing fixed mount, first support column and the second support column are equipped with ring flange, ring flange top is provided with crossbeam, crossbeam is provided with background board, background board is provided with the color bar of teaching demonstration, fixed mount is provided with test tube flat, test tube flat is provided with the test tube hole for fixing test tube, on the first support column that fixed head is arranged on fixed leg bottom and the second support column, fixed head is provided with screw rod, base bottom is provided with damper, damper bottom is provided with frame, frame lower is provided with road wheel.The utility model demonstration observing effect is clear, and conveniently moving, cost is low, applied widely, long service life, has safe and reliable effect.
Description
Technical field
The utility model relates to a kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement.
Background technology
At present, in bioconversion medium especially experimental teaching time, often need to carry out lecture experiment, especially the experiment of some test tube classes is carried out, when utilizing test tube to test, because the handgrip part of teacher is improper, be easy to block the observation of student to experimental phenomena and experimental implementation, affect teaching efficiency; Teacher, when the demonstration of hand-held test tube, is not easy to instruction of papil and observes keypoint part, is also not easy to add medicine in time or order adds medicine, and the experiment of some heat release also may be burnt teacher's health.When carrying out many group test tube contrast experiments, the general rack for test tube that adopts carries out, but not easily observes owing to lacking suitable contrast background; And existing teaching demonstration rack for test tube moves comparatively inconvenience, be substantially all by a dead lift, this can bring inconvenience to teacher.
Summary of the invention
It is simple that the technical problems to be solved in the utility model is to provide a kind of structure, use, easy for installation, simple to operate, laborsaving, demonstration observing effect is clear, conveniently moving, cost is low, applied widely, long service life, has the Senior Biology experimental teaching demonstration rack for test tube being convenient to movement of safe and reliable effect.
For solving the problem, the utility model adopts following technical scheme: a kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement, comprise base, first support column, second support column, fixed mount and fixed head, described first support column and the second support column are symmetricly set on base, the first described support column and the second support column are equipped with fixed leg, described fixed mount is arranged on fixed leg, described fixed leg is provided with the hold-down screw for fixing fixed mount, the first described support column and the second support column are equipped with ring flange, crossbeam is provided with on described ring flange top, described crossbeam is provided with background board, described background board is provided with the color bar of teaching demonstration, described fixed mount is provided with test tube flat, described test tube flat is provided with the test tube hole for fixing test tube, on the first support column that described fixed head is arranged on fixed leg bottom and the second support column, described fixed head is provided with screw rod, damper is provided with in described base bottom, frame is provided with in described damper bottom, road wheel is provided with in described frame lower.
As preferred technical scheme, described screw rod runs through fixed head and arranges, and extends to base bottom, is provided with back-up block, is provided with slipmat in described back-up block bottom in the described screw rod bottom extending to base bottom.
As preferred technical scheme, the screw rod on described fixed head top is provided with hold-down nut, and the screw rod on described hold-down nut top is provided with jam nut.
As preferred technical scheme, the base of described screw rod both sides is arranged with support bar, described support bar top and fixed head offset.
As preferred technical scheme, be provided with foam-rubber cushion at described test tube hole inner bottom part.
A kind of beneficial effect being convenient to the Senior Biology experimental teaching demonstration rack for test tube of movement of the utility model is: structure is simple, use, easy for installation, simple to operate, laborsaving, demonstration observing effect is clear, conveniently moving, cost is low, applied widely, long service life, has safe and reliable effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation being convenient to the Senior Biology experimental teaching demonstration rack for test tube of movement of the utility model.
Detailed description of the invention
Consult a kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement shown in Fig. 1, comprise base 1, first support column 2, second support column 3, fixed mount 4 and fixed head 5, described first support column 2 and the second support column 3 are symmetricly set on base 1, the first described support column 2 and the second support column 3 are equipped with fixed leg 6, described fixed mount 4 is arranged on fixed leg 6, described fixed leg 6 is provided with the hold-down screw 7 for fixing fixed mount 4, the first described support column 2 and the second support column 3 are equipped with ring flange 8, crossbeam 9 is provided with on described ring flange 8 top, described crossbeam 9 is provided with background board 10, described background board 10 is provided with the color bar 11 of teaching demonstration, described fixed mount 4 is provided with test tube flat 12, described test tube flat 12 is provided with the test tube hole 13 for fixing test tube, on the first support column 2 that described fixed head 5 is arranged on fixed leg 6 bottom and the second support column 3, described fixed head 5 is provided with screw rod 14, damper 15 is provided with in described base 1 bottom, frame 16 is provided with in described damper 15 bottom, road wheel 17 is provided with in described frame 16 bottom.
A preferred embodiment in the utility model, described screw rod 14 runs through fixed head 5 and arranges, and extends to base 1 bottom, is provided with back-up block 18, is provided with slipmat 19 in described back-up block 18 bottom in described screw rod 14 bottom extending to base 1 bottom.
A preferred embodiment in the utility model, the screw rod 14 on described fixed head 5 top is provided with hold-down nut 20, and the screw rod 14 on described hold-down nut 20 top is provided with jam nut 21.
A preferred embodiment in the utility model, the base 1 of described screw rod 14 both sides is arranged with support bar 22, and described support bar 22 top and fixed head 5 offset.
A preferred embodiment in the utility model, is provided with foam-rubber cushion (not shown) at described test tube hole 13 inner bottom part.
Further, by set background board, when carrying out teaching demonstration, student can observe the color change in contrast tube assay preferably, improves the effect of resolution ratio and teaching demonstration.
Further, by arranging jam nut on the screw rod on hold-down nut top, avoid occurring when using this rack for test tube that hold-down nut loosens and the phenomenon of rack for test tube displacement that produces.
Further, by the slipmat arranged in back-up block bottom, add the skidproof effect of this rack for test tube when carrying out teaching demonstration.
A kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement of the utility model has the following advantages: during use, by set road wheel, teacher and the movement of student when using this rack for test tube can be convenient to, when needs use this rack for test tube to demonstrate, by being rotatably provided in the hold-down nut on screw rod, screw rod is moved down, back-up block and ground supports, thus play the object supporting rack for test tube, so that later stage bioconversion medium demonstration, by set damper, decrease vibrations that this rack for test tube produces when mobile to the vibration influence of the test tube be placed on test tube flat, thus the normal use of later stage teaching demonstration can be guaranteed.Its structure is simple, uses, easy for installation, simple to operate, laborsaving, and demonstration observing effect is clear, and conveniently moving, cost is low, applied widely, long service life, has safe and reliable effect.
The above, be only detailed description of the invention of the present utility model, but protection domain of the present utility model is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed within protection domain of the present utility model.Therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.
Claims (5)
1. be convenient to the Senior Biology experimental teaching demonstration rack for test tube of movement for one kind, it is characterized in that: comprise base, first support column, second support column, fixed mount and fixed head, described first support column and the second support column are symmetricly set on base, the first described support column and the second support column are equipped with fixed leg, described fixed mount is arranged on fixed leg, described fixed leg is provided with the hold-down screw for fixing fixed mount, the first described support column and the second support column are equipped with ring flange, crossbeam is provided with on described ring flange top, described crossbeam is provided with background board, described background board is provided with the color bar of teaching demonstration, described fixed mount is provided with test tube flat, described test tube flat is provided with the test tube hole for fixing test tube, on the first support column that described fixed head is arranged on fixed leg bottom and the second support column, described fixed head is provided with screw rod, damper is provided with in described base bottom, frame is provided with in described damper bottom, road wheel is provided with in described frame lower.
2. the Senior Biology experimental teaching demonstration rack for test tube being convenient to movement according to claim 1, it is characterized in that: described screw rod runs through fixed head and arranges, and extend to base bottom, be provided with back-up block in the described screw rod bottom extending to base bottom, be provided with slipmat in described back-up block bottom.
3. the Senior Biology experimental teaching demonstration rack for test tube being convenient to movement according to claim 2, is characterized in that: the screw rod on described fixed head top is provided with hold-down nut, the screw rod on described hold-down nut top is provided with jam nut.
4. the Senior Biology experimental teaching demonstration rack for test tube being convenient to movement according to claim 1, it is characterized in that: on the base of described screw rod both sides, be arranged with support bar, described support bar top and fixed head offset.
5. the Senior Biology experimental teaching demonstration rack for test tube being convenient to movement according to claim 1, is characterized in that: be provided with foam-rubber cushion at described test tube hole inner bottom part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520362166.8U CN204724209U (en) | 2015-06-01 | 2015-06-01 | A kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520362166.8U CN204724209U (en) | 2015-06-01 | 2015-06-01 | A kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204724209U true CN204724209U (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520362166.8U Expired - Fee Related CN204724209U (en) | 2015-06-01 | 2015-06-01 | A kind of Senior Biology experimental teaching demonstration rack for test tube being convenient to movement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204724209U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724786A (en) * | 2019-01-15 | 2019-05-07 | 江西科技师范大学 | Electromechanical Control test experience platform |
| CN110548558A (en) * | 2019-10-18 | 2019-12-10 | 江苏师范大学 | chemical experiment demonstration frame |
-
2015
- 2015-06-01 CN CN201520362166.8U patent/CN204724209U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724786A (en) * | 2019-01-15 | 2019-05-07 | 江西科技师范大学 | Electromechanical Control test experience platform |
| CN110548558A (en) * | 2019-10-18 | 2019-12-10 | 江苏师范大学 | chemical experiment demonstration frame |
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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: 20151028 Termination date: 20160601 |