CN211801030U - Test-tube rack is used in teaching - Google Patents
Test-tube rack is used in teaching Download PDFInfo
- Publication number
- CN211801030U CN211801030U CN202020480004.5U CN202020480004U CN211801030U CN 211801030 U CN211801030 U CN 211801030U CN 202020480004 U CN202020480004 U CN 202020480004U CN 211801030 U CN211801030 U CN 211801030U
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- China
- Prior art keywords
- test
- test tube
- base
- tube rack
- teaching
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Abstract
The utility model discloses a test-tube rack is used in teaching, including the base, still include the support of can dismantling the connection with the base, be located six recesses that the base upper surface is used for placing the test tube, the support includes the jack panel, the jack panel both sides all are provided with the backup pad, just be provided with the through-hole that distributes with the recess one-to-one on the jack panel, the utility model discloses an adopt high transparent polypropylene material for the test-tube rack is highly transparent, can not influence when liquid exceeds test tube jack panel and observe the phenomenon, easily observes when doing contrast test, easily washs repeatedly, and meets water and can not warp, through the cooperation between bump, fixed axle and the trompil, makes the junction can not become flexible, and is sturdy and durable.
Description
Technical Field
The utility model relates to a physics and chemical instrumentation equipment technical field specifically are a test-tube rack is used in teaching.
Background
The test tube rack is the most basic laboratory instrument in a chemical laboratory for placing (sometimes, test tubes can be placed on the test tube rack to observe the phenomenon of a certain experiment) and drying the test tubes. The test tube rack is attached with a corresponding number of small wooden columns and small holes, the small holes can vertically place the test tubes for standby or facilitate the continuous observation of the reaction, and the columns can inversely place the cleaned test tubes for airing.
At present the test-tube rack that adopts in experiment teaching and student's experiment operation is mostly wooden and coloured plastics material, its design molding edges and corners is obvious, many places have the burr to distribute, instrument corner is sharp with test tube hole and base border department edges and corners, easy fish tail and stab the hand during operation, in addition wooden and the non-transparent visual blind area part that forms of test tube jack board of coloured plastics material test-tube rack, the experimental phenomenon in the observation test tube has been blockked, and when dripping into liquid with the burette, when liquid rises to the blind area that blocks of test tube jack board, can't observe the phenomenon, and wooden test-tube rack meets easy deformation behind the water and leads to the junction easy loose.
Disclosure of Invention
An object of the utility model is to provide a test-tube rack is used in teaching to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a test tube rack for teaching comprises a base, a support and six grooves, wherein the support is detachably connected with the base;
the support includes the jack panel, the jack panel both sides all are provided with the backup pad, just be provided with the through-hole that distributes with the recess one-to-one on the jack panel, during the use, insert the through-hole department on the jack panel with the test tube, the test tube is automatic to fall into in the recess that corresponds the base, makes in the stable stand of test tube in the test-tube rack, and be connected for dismantling through support and base, is convenient for wash this test-tube rack.
As a further aspect of the present invention: the base and the support are made of high-transparency polypropylene materials, the phenomenon in the test tube is not influenced when the liquid level of the test tube reaches the jack plate through the high-transparency polypropylene materials, the phenomenon that the liquid level is observed to rise and change is not influenced when the dropper reads in liquid to reach the height of the jack plate, and the polypropylene materials are good in hardness and cannot deform after being repeatedly washed, so that the connection is solid and stable.
As a further aspect of the present invention: the utility model discloses a test tube rack, including base, backup pad, fixed axle, base upper surface both sides all are provided with rectangular trompil, the backup pad bottom is provided with rectangular fixed axle, the size of fixed axle is identical with the size of trompil, during the connection, during the fixed axle with backup pad bottom inserts the trompil on the base, can install this test tube rack, and is very convenient.
As a further aspect of the present invention: the fixed axle lateral wall is provided with the bump of two symmetric distributions, and through combining the bump, when the fixed axle inserted in the trompil, the bump can firmly block in the trompil, prevents not hard up droing, has improved the steadiness.
As a further aspect of the present invention: the recess sets up to concave arc nest column structure, through setting up the recess into concave arc nest column structure, is convenient for carry out the bearing to the bottom of test tube, has increased the area of contact with the test tube for the test tube is placed more firmly.
As a further aspect of the present invention: the contact surface and the corner of base are the circular arc design, the picture peg board is connected the corner with the backup pad and is circular arc design, the through-hole is circular arc design, through circular arc design for the user can not fish tail or stab hand or skin no matter how touch and scratch, fundamentally has solved the drawback of easily hindering the hand.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an adopt high transparent polypropylene material, make the test-tube rack highly transparent, can not influence the observation phenomenon when liquid surpasses test tube jack board, easily observe when doing contrast test, easily rinse repeatedly, and meet water and can not warp, through the bump, cooperation between fixed axle and the trompil, make the junction can not become flexible, and is sturdy and durable, and simultaneously, this test-tube rack is applicable to any specification test tube that is less than the test tube jack, and the test tube can not take place the slope when placing, through convex design, make the user can not fish tail or stab hand or skin no matter how touch and scratch, fundamentally has solved the drawback of easily hindering the hand.
Drawings
Fig. 1 is a schematic structural view of a test tube rack for teaching.
Fig. 2 is a schematic structural diagram of a base in a test tube rack for teaching.
Fig. 3 is a schematic structural diagram of a support in a test tube rack for teaching.
Fig. 4 is a partially enlarged view of a in the teaching test tube rack.
In the figure: 1. a base; 2. a support; 3. a groove; 4. a through hole; 5. opening a hole; 6. a jack plate; 7. a support plate; 8. a fixed shaft; 9. and (4) bumps.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-4, in an embodiment of the present invention, a test tube rack for teaching, including base 1, further include the support 2 that can dismantle the connection with base 1, be located six recesses 3 that the upper surface of base 1 is used for placing the test tube, support 2 includes jack panel 6, jack panel 6 both sides all are provided with backup pad 7, just be provided with the through-hole 4 that distributes with recess 3 one-to-one on jack panel 6.
During the use, insert the through-hole 4 departments on the jack panel 6 with the test tube, the test tube falls into corresponding base 1's recess 3 automatically, makes the stable stand of test tube in the test-tube rack, and be connected for dismantling through support 2 and base 1, is convenient for wash this test-tube rack.
The base 1 and the support 2 are both made of high-transparency polypropylene materials.
By adopting the high-transparency polypropylene material, when the liquid level of the test tube reaches the jack plate 6, the phenomenon in the test tube is not influenced, when the dropper reads in liquid and reaches the height of the jack plate 6, the phenomenon that the liquid level is observed to rise and change is not influenced, and the polypropylene material has good rigidity and can not deform after being repeatedly washed, so that the connection is firm and stable.
Rectangular trompil 5 all is provided with in base 1 upper surface both sides, backup pad 7 bottom is provided with rectangular fixed axle 8, the size of fixed axle 8 is identical with the size of trompil 5.
During the connection, insert the fixed axle 8 of backup pad 7 bottom in the trompil 5 on the base 1, can install this test-tube rack, it is very convenient.
Two salient points 9 which are symmetrically distributed are arranged on the side wall of the fixed shaft 8.
Through combining bump 9, when fixed axle 8 inserts in trompil 5, bump 9 can firmly block in trompil 5, prevents not hard up the drop, has improved the steadiness.
The groove 3 is of a concave arc-shaped socket structure.
Through setting up recess 3 into concave arc nest column structure, be convenient for carry out the bearing to the bottom of test tube, increased the area of contact with the test tube for the test tube is placed more firmly.
The contact surface and the corner of the base 1 are both designed in an arc shape, the corner of the connection of the jack plate 6 and the support plate 7 is designed in an arc shape, and the through hole 4 is designed in an arc shape.
Through the design of the circular arc shape, the user can not scratch or hurt the hand or the skin no matter how to touch and scratch, and the defect that the hand is easy to hurt is fundamentally overcome.
The utility model discloses a theory of operation is:
when in use, the test tube is inserted into the through hole 4 on the jack plate 6 and automatically falls into the groove 3 corresponding to the base 1, so that the test tube stably stands in the test tube rack and is detachably connected with the base 1 through the bracket 2, the test tube rack is convenient to clean, the high-transparency polypropylene material is adopted, when the liquid level of the test tube reaches the jack plate 6, the phenomenon in the test tube is not influenced, when a dropper reads in liquid and reaches the height of the jack plate 6, the phenomenon of the liquid level rise and change is not influenced, the polypropylene material is hard and can not deform after being repeatedly washed, the connection is firm and stable, when in connection, the fixed shaft 8 at the bottom of the supporting plate 7 is inserted into the open hole 5 on the base 1, the test tube rack can be installed, the test tube rack is very convenient, by combining the convex points 9, when the fixed shaft 8 is inserted into the open hole 5, the convex points 9 can be firmly, prevent not hard up to drop, improved the steadiness, through setting up recess 3 into concave arc nest column structure, be convenient for carry out the bearing to the bottom of test tube, increased with the area of contact of test tube for the test tube is placed more firmly, through convex design, makes the user can not fish tail or stab hand or skin no matter how touch and scratch, and fundamentally has solved the drawback of easily hindering the hand.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A test tube rack for teaching comprises a base (1) and is characterized by further comprising a support (2) detachably connected with the base (1) and six grooves (3) which are located on the upper surface of the base (1) and used for placing test tubes;
the support (2) comprises a jack plate (6), supporting plates (7) are arranged on two sides of the jack plate (6), and through holes (4) distributed in one-to-one correspondence with the grooves (3) are formed in the jack plate (6).
2. The test tube rack for teaching according to claim 1, wherein the base (1) and the support (2) are both made of high-transparency polypropylene materials.
3. The test tube rack for teaching according to claim 1, wherein rectangular openings (5) are formed in two sides of the upper surface of the base (1), a rectangular fixing shaft (8) is arranged at the bottom of the supporting plate (7), and the size of the fixing shaft (8) is matched with that of the openings (5).
4. A test tube rack for teaching as claimed in claim 3, characterized in that the side wall of the fixed shaft (8) is provided with two symmetrically distributed salient points (9).
5. A test tube rack for teaching as claimed in claim 1, characterized in that the recess (3) is arranged as a concave arc socket-like structure.
6. The test-tube rack for teaching according to claim 1, characterized in that the contact surface and the corners of the base (1) are designed in an arc shape, the corners where the jack plate (6) and the support plate (7) are connected are designed in an arc shape, and the through holes (4) are designed in an arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020480004.5U CN211801030U (en) | 2020-04-03 | 2020-04-03 | Test-tube rack is used in teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020480004.5U CN211801030U (en) | 2020-04-03 | 2020-04-03 | Test-tube rack is used in teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211801030U true CN211801030U (en) | 2020-10-30 |
Family
ID=73143361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020480004.5U Expired - Fee Related CN211801030U (en) | 2020-04-03 | 2020-04-03 | Test-tube rack is used in teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211801030U (en) |
-
2020
- 2020-04-03 CN CN202020480004.5U patent/CN211801030U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201030 Termination date: 20210403 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |