CN214810976U - Multipurpose dropper for chemistry teaching - Google Patents
Multipurpose dropper for chemistry teaching Download PDFInfo
- Publication number
- CN214810976U CN214810976U CN202121142949.7U CN202121142949U CN214810976U CN 214810976 U CN214810976 U CN 214810976U CN 202121142949 U CN202121142949 U CN 202121142949U CN 214810976 U CN214810976 U CN 214810976U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- ring
- burette
- dropper
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011521 glass Substances 0.000 claims abstract description 24
- 239000007787 solid Substances 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 208000034189 Sclerosis Diseases 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 7
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a teaching aid technical field's a chemistry teaching is with multi-purpose burette, including glass burette and solid fixed ring, the upper end fixedly connected with rubber head of glass burette, the junction of rubber head and glass burette is equipped with the reinforcement section, solid fixed ring's one side fixedly connected with installed part, it is connected with the connecting rod to rotate on the installed part, the upper end of connecting rod is rotated and is connected with the connecting piece, the portable handle of one end fixedly connected with of connecting rod is kept away from to the connecting piece, the last fixed surface of portable handle is connected with compression spring, compression spring's upper end fixedly connected with mounting panel, the last fixed surface of mounting panel is connected with the protecting crust, place the protecting crust with the rubber head during accomodating in, the protecting crust protects the rubber head, prevent the rubber head sclerosis.
Description
Technical Field
The utility model relates to a teaching aid technical field specifically is a chemistry teaching is with multi-purpose burette.
Background
In chemical teaching, a rubber-tipped dropper is a commonly used experimental instrument in chemical experiments, is also called a rubber-cap dropper, is an instrument for sucking or dropping a small amount of liquid reagent, and consists of a rubber cap and glass.
Rubber heads on a rubber tube and a rubber head dropper for chemical experiments can be stuck together after being stored for a long time, are damaged and even become sticky, cannot be disposed of and can only be thrown away, the rubber head on the rubber head dropper is easy to harden, and the use is influenced after the hardening. Therefore, those skilled in the art have provided a multipurpose dropper for chemistry teaching to solve the above problems in the background art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chemistry teaching is with multi-purpose burette to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a chemistry teaching is with multi-purpose burette, includes glass burette and solid fixed ring, the upper end fixedly connected with rubber head of glass burette, the rubber head with the junction of glass burette is equipped with the reinforcement section, gu one side fixedly connected with installed part of fixed ring, it is connected with the connecting rod to rotate on the installed part, the upper end of connecting rod is rotated and is connected with the connecting piece, the connecting piece is kept away from the portable handle of one end fixedly connected with of connecting rod, the last fixed surface of portable handle is connected with compression spring, compression spring's upper end fixedly connected with mounting panel, the last fixed surface of mounting panel is connected with the protecting crust.
As a further aspect of the present invention: the utility model discloses a glass burette, including solid fixed ring, gu fixed ring includes first joint ring and second joint ring, the one end fixedly connected with connecting block of first joint ring, it is connected with the connecting axle to rotate on the connecting block, the upper and lower both ends of connecting axle are rotated and are connected with the second joint ring, use this burette when carrying out chemical education, and through joint piece and the cooperation of joint groove on first joint ring and the second joint ring, fix the glass burette on solid fixed ring, when carrying out the education, the teacher can show the appearance characteristic of burette through portable handle more comprehensive concrete like student, and the existence of elastic webbing makes things convenient for solid fixed ring to adapt to the burette of different diameters simultaneously, increases the practicality of device.
As a further aspect of the present invention: the first clamping ring is far away from one end of the connecting shaft is provided with an installation block, the installation block is far away from a plurality of elastic belts fixedly connected with one ends of the connecting shaft, the elastic belts are far away from a second fixing piece fixedly connected with one ends of the installation block, and the second fixing piece is far away from a clamping block fixedly connected with one ends of the elastic belts.
As a further aspect of the present invention: the second clamping ring is far away from one end of the connecting shaft is fixedly provided with a first fixing piece, and the first fixing piece is far away from one end of the connecting shaft and is provided with a clamping groove.
As a further aspect of the present invention: the joint groove with the joint piece matches, the inboard fixed surface of solid fixed ring is connected with the rubber pad, the outer fixed surface of glass burette is connected with the scale mark.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, through the cooperation between solid fixed ring and the portable handle, when using this burette to carry out chemical education, through joint piece and the cooperation of joint groove on first joint ring and the second joint ring, fix the glass burette on solid fixed ring, when teaching, the teacher can show the appearance characteristic of burette through portable handle more comprehensive specific like the student, the existence of elastic webbing simultaneously, the burette of the different diameters of convenient solid fixed ring adaptation increases the practicality of device.
2. The utility model discloses in, through the cooperation between protecting crust and the compression spring, after the teaching is accomplished, when needing to accomodate this glass burette, the user can make the rubber head place the protecting crust in through adjusting solid fixed ring's position, the protecting crust can avoid gluing the head of gluing on the head burette and put the bonding for a long time, the damage becomes very thick even, handle not to fall, the situation that can only throw away, prevent to glue the head of gluing on the head burette and harden easily, increase the life of burette.
Drawings
Fig. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a partial schematic view of the structure of A in FIG. 1 according to the present invention;
fig. 3 is a schematic structural diagram of the present invention;
FIG. 4 is a partial schematic view of the structure of FIG. 3 at B according to the present invention;
fig. 5 is a schematic structural view of the fixing ring of the present invention;
fig. 6 is a sectional view of the fixing ring of the present invention.
In the figure: 1. a rubber head; 2. a glass dropper; 3. a fixing ring; 4. a portable handle; 5. a protective shell; 6. mounting a plate; 7. a reinforcing section; 8. a first snap ring; 9. a second snap ring; 10. a connecting shaft; 11. a mounting member; 12. a connecting rod; 13. a connecting member; 14. connecting blocks; 15. scale lines; 16. a compression spring; 17. a first fixing member; 18. a clamping groove; 19. a clamping block; 20. a second fixing member; 21. mounting blocks; 22. an elastic band.
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. 1-6, in an embodiment of the present invention, a multipurpose dropper for chemistry teaching, including glass dropper 2 and fixed ring 3, upper end fixedly connected with rubber head 1 of glass dropper 2, the junction of rubber head 1 and glass dropper 2 is equipped with reinforced section 7, one side fixedly connected with installed part 11 of fixed ring 3, it is connected with connecting rod 12 to rotate on installed part 11, the upper end of connecting rod 12 rotates and is connected with connecting piece 13, connecting piece 13 keeps away from portable handle 4 of one end fixedly connected with of connecting rod 12, the last fixed surface of portable handle 4 is connected with compression spring 16, compression spring 16's upper end fixedly connected with mounting panel 6, the last fixed surface of mounting panel 6 is connected with protecting crust 5.
The fixing ring 3 comprises a first clamping ring 8 and a second clamping ring 9, one end of the first clamping ring 8 is fixedly connected with a connecting block 14, the connecting block 14 is rotatably connected with a connecting shaft 10, the upper end and the lower end of the connecting shaft 10 are rotatably connected with the second clamping ring 9, when the dropper is used for chemical teaching, the glass dropper 2 is fixed on the fixing ring 3 through the matching of clamping blocks 19 on the first clamping ring 8 and the second clamping ring 9 and a clamping groove 18, and a teacher can more comprehensively and specifically display the appearance characteristics of the dropper like students through the portable handle 4 when teaching, and meanwhile, the elastic band 22 is arranged, so that the fixing ring 3 can be conveniently adapted to droppers with different diameters, and the practicability of the device is improved; an installation block 21 is installed at one end, far away from the connecting shaft 10, of the first clamping ring 8, a plurality of elastic belts 22 are fixedly connected to one end, far away from the connecting shaft 10, of the installation block 21, a second fixing piece 20 is fixedly connected to one end, far away from the installation block 21, of each elastic belt 22, and a clamping block 19 is fixedly connected to one end, far away from the elastic belts 22, of each second fixing piece 20; a first fixing piece 17 is fixedly arranged at one end of the second clamping ring 9 far away from the connecting shaft 10, and a clamping groove 18 is formed at one end of the first fixing piece 17 far away from the connecting shaft 10; the clamping groove 18 is matched with the clamping block 19, the inner side surface of the fixing ring 3 is fixedly connected with a rubber pad, and the outer surface of the glass dropper 2 is fixedly connected with scale marks 15.
The utility model discloses a theory of operation is: when using this burette to carry out chemical education, through joint piece 19 and the cooperation of joint groove 18 on first joint ring 8 and the second joint ring 9, fix glass burette 2 on solid fixed ring 3, when teaching, the teacher can show the appearance characteristic of burette through portable handle 4 more comprehensive specific like the student, and the existence of elastic band 22 makes things convenient for solid fixed ring 3 adaptation burette of different diameters simultaneously, increases the practicality of device. In addition, after the teaching is accomplished, when this glass burette 2 needs to be accomodate, the user can make rubber head 1 place protecting crust 5 in through adjusting solid fixed ring 3's position, with compression spring 16 cooperation, protecting crust 5 can avoid the rubber head on the rubber head burette to put the bonding for a long time, and the damage becomes very thick even, handles not falling, and the situation that can only throw away prevents the easy sclerosis of rubber head on the rubber head burette, increases the life of burette.
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 (5)
1. The utility model provides a chemistry teaching is with multi-purpose burette, includes glass burette (2) and solid fixed ring (3), its characterized in that: the upper end fixedly connected with rubber head (1) of glass burette (2), rubber head (1) with the junction of glass burette (2) is equipped with reinforcing section (7), one side fixedly connected with installed part (11) of solid fixed ring (3), it is connected with connecting rod (12) to rotate on installed part (11), the upper end of connecting rod (12) is rotated and is connected with connecting piece (13), connecting piece (13) are kept away from the portable handle (4) of one end fixedly connected with of connecting rod (12), the last fixed surface of portable handle (4) is connected with compression spring (16), the upper end fixedly connected with mounting panel (6) of compression spring (16), the last fixed surface of mounting panel (6) is connected with protecting crust (5).
2. The multipurpose dropper for chemistry teaching as claimed in claim 1, wherein: fixed ring (3) include first joint ring (8) and second joint ring (9), the one end fixedly connected with connecting block (14) of first joint ring (8), it is connected with connecting axle (10) to rotate on connecting block (14), the upper and lower both ends of connecting axle (10) are rotated and are connected with second joint ring (9).
3. The multipurpose dropper for chemistry teaching as claimed in claim 2, wherein: keep away from first joint ring (8) the one end of connecting axle (10) is installed installation piece (21), installation piece (21) are kept away from a plurality of elastic bands (22) of one end fixedly connected with of connecting axle (10), elastic band (22) are kept away from the one end fixedly connected with second mounting (20) of installation piece (21), second mounting (20) are kept away from the one end fixedly connected with joint piece (19) of elastic band (22).
4. The multipurpose dropper for chemistry teaching as claimed in claim 3, wherein: keep away from second joint ring (9) the one end fixed mounting of connecting axle (10) has first mounting (17), first mounting (17) are kept away from joint groove (18) have been seted up to the one end of connecting axle (10), joint groove (18) with joint piece (19) match.
5. The multipurpose dropper for chemistry teaching as claimed in claim 1, wherein: the inner side surface of the fixing ring (3) is fixedly connected with a rubber pad, and the outer surface of the glass dropper (2) is fixedly connected with scale marks (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121142949.7U CN214810976U (en) | 2021-05-26 | 2021-05-26 | Multipurpose dropper for chemistry teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121142949.7U CN214810976U (en) | 2021-05-26 | 2021-05-26 | Multipurpose dropper for chemistry teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214810976U true CN214810976U (en) | 2021-11-23 |
Family
ID=78776777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121142949.7U Expired - Fee Related CN214810976U (en) | 2021-05-26 | 2021-05-26 | Multipurpose dropper for chemistry teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214810976U (en) |
-
2021
- 2021-05-26 CN CN202121142949.7U patent/CN214810976U/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: 20211123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |