CN209020408U - A kind of jacket type buret - Google Patents
A kind of jacket type buret Download PDFInfo
- Publication number
- CN209020408U CN209020408U CN201821674251.8U CN201821674251U CN209020408U CN 209020408 U CN209020408 U CN 209020408U CN 201821674251 U CN201821674251 U CN 201821674251U CN 209020408 U CN209020408 U CN 209020408U
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- CN
- China
- Prior art keywords
- liquid line
- piston
- liquid
- jacket type
- tube
- 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
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- Investigating Or Analysing Biological Materials (AREA)
Abstract
The utility model discloses a kind of jacket type burets, including liquid line, the support ring being fixed on liquid tube outer surface, the casing being located in support ring, the switch for being located at liquid line lower end, the dropper being located on switch and the liquid absorption device being located in liquid line.Support ring is bonded on the outer surface of liquid line, and casing is bonded on the outer surface of support ring.Switch includes glass tube, is located at the rotational pin being rotatablely connected in glass tube and with it, the through-hole being opened on rotational pin, the knob for being located at rotational pin one end, the riffled tube B with the riffled tube A of glass tube perforation connection and with glass tube perforation connection.Liquid absorption device includes the piston being slidably connected with liquid line, the piston rod being located on piston-top surface, the air hole being opened on piston and the plug being inserted in air hole.
Description
Technical field
The utility model relates to school's chemical laboratory instrument fields, and in particular to a kind of jacket type buret.
Background technique
Experiment, refers to one of basic skills of scientific research.According to the purpose of scientific research, exclude as much as possible extraneous
Influence, prominent principal element simultaneously utilizes some special instrument and equipments, and artificially changes, controls or analog study object,
Certain some things (or process) is set to occur or reproduce, to go to know natural environment appearance, natural property, the natural law.
For student, experiment is the important component of study, and carrying out a certain amount of experiment facilitates culture study
Interest improves manipulative ability, deepens the understanding to classroom knowledge, can play the role of in learning process very big.
Student experimenting mainly divides Physical Experiment and chemical experiment two major classes.The big portion of experimental apparatus that wherein Physical Experiment uses
It is all in kind for dividing, even if there is a small amount of Experiments of Electricity, electric current is also very faint, and injury will not be generated to people, relatively safe.
But partial chemical experiment can be related to the strong acid such as sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide, hydrofluoric acid and highly basic, reaction process
It needs to heat, and light and heat can be supervened, it is extremely easy to endanger under conditions of measure control is not allowed with misoperation
Danger.Therefore many schools start to reduce accounting of the chemical experiment in teaching, or even occur carrying out using the demonstration instrument of profession
The chemical experimental courses of demonstration.Although this has prevented dangerous appearance, seeming is the safety for protecting student, and student is but
The chance of operation is lost, in the long run, is no advantage to student, is compared because talking about stratagems on paper with practical operation, it is poor
Away from excessively huge.Therefore, it is badly in need of designing a large amount of student's Special experimental utensil now, student is allowed to come back to chemical experiment
Room.
Utility model content
The utility model is intended to provide a kind of safer jacket type buret.
The utility model adopts the following technical solution:
A kind of jacket type buret including liquid line, the support ring being fixed on liquid tube outer surface, is located in support ring
Casing, the switch for being located at liquid line lower end, the dropper that is located on switch and the liquid absorption device that is located in liquid line.
As further solution: the support ring is bonded on the outer surface of liquid line.
As further solution: described sleeve pipe is bonded on the outer surface of support ring.
As further solution: the switch includes glass tube, is located in glass tube and is rotatablely connected with it
Rotational pin, the through-hole being opened on rotational pin, the knob for being located at rotational pin one end, with glass tube perforation connection riffled tube A and
With the riffled tube B of glass tube perforation connection；
Axis of the axis of the through-hole perpendicular to rotational pin；
The axis of the riffled tube A is parallel with the axis of riffled tube B；
Axis of the axis of the riffled tube A perpendicular to glass tube；
The riffled tube A is connect with liquid line；
The riffled tube B is connect with dropper.
As further solution: the outer wall of described sleeve pipe is equipped with groove.
As further solution: the liquid absorption device includes the piston being slidably connected with liquid line, is located at piston
Piston rod, the air hole being opened on piston on top surface and the plug being inserted in air hole.
As further solution: the plug includes section A and the section B with section A rotation connection；
Described section of A is inserted into air hole.
The good effect that the utility model generates is as follows:
The utility model is designed using collet, and liquid line contains strong acid solution or strong base solution, and casing is used to fix,
It can be avoided solution caused by liquid line ruptures suddenly in clamping process in this way to reveal, even if aid power is excessive during the experiment
Casing is clipped broken, liquid line will not rupture, and can guarantee the safety of student to greatest extent.
When misoperation or external force cause liquid tracheal rupture, student can hold casing and handle, and thus be avoided that
It is safer with the contact of solution in liquid line.
The utility model improves safety by increasing structure, and cost of manufacture will increase, therefore use split type
Structure reduces its use cost.Liquid line and casing, liquid line and switch, switch and dropper can realize assembling, when it
In some parts damages when, the component more renewed just can continue to using.Student's voluntarily group can be allowed when especially testing
Dress, improves its manipulative ability, kills two birds with one stone.
The utility model uses liquid absorption device in the form of piston, and dropper is extend into solution bottle, pulls piston rod, energy
It is enough that solution is drawn in liquid line.Suction process middle school student do not contact with solution bottle, also do not need using additional Liquid absorption ball
Equal utensils, can further increase the safety of operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Wherein: 11 liquid lines, 12 support rings, 13 casings, 14 droppers, 21 glass tubes, 22 rotational pins, 23 through-holes, 24 knobs,
25 riffled tube A, 26 riffled tube B, 3 grooves, 41 pistons, 42 piston rods, 43 air holes, 44 plugs.
Specific embodiment
The utility model is further described below with reference to Fig. 1.
The utility model adopts the following technical solution:
A kind of jacket type buret including liquid line 11, the support ring 12 being fixed on 11 outer surface of liquid line, is located at branch
It casing 13 on pushing out ring 12, the switch for being located at 11 lower end of liquid line, the dropper 14 being located on switch and is located in liquid line 11
Liquid absorption device.
As further solution: the support ring 12 is bonded on the outer surface of liquid line 11.
As further solution: described sleeve pipe 13 is bonded on the outer surface of support ring 12.
As further solution: the switch include glass tube 21, be located in glass tube 21 and with its company of rotation
The rotational pin 22 that connects, the knob 24 for being located at 22 one end of rotational pin, connects with the perforation of glass tube 21 through-hole 23 being opened on rotational pin 22
The riffled tube A25 connect the and riffled tube B26 with the perforation connection of glass tube 21；
Axis of the axis of the through-hole 23 perpendicular to rotational pin 22；
The axis of the riffled tube A25 is parallel with the axis of riffled tube B26；
Axis of the axis of the riffled tube A25 perpendicular to glass tube 21；
The riffled tube A25 is connect with liquid line 11；
The riffled tube B26 is connect with dropper 14.
As further solution: the outer wall of described sleeve pipe 13 is equipped with groove 3.
As further solution: the liquid absorption device includes the piston 41 being slidably connected with liquid line 11, is located at
Piston rod 42, the air hole 43 being opened on piston 41 on 41 top surface of piston and the plug 44 being inserted in air hole 43.
As further solution: the plug 44 includes section A and the section B with section A rotation connection；
Described section of A is inserted into air hole 43.
The utility model is described further and is explained below with reference to actual assembling and use process.
Before being tested, need to carry out assembly working.Liquid line 11 is taken out, two support rings 12 are set to liquid respectively
Then liquid line 11 is inserted into casing 13 by dots of adhesive to the contact portion of the two, dots of adhesive is arrived by the both ends of pipe 11
The contact portion of casing 13 and support ring 12.Adhesive can select 502 glue or the similar gluing that can quickly solidify
Agent.
Bonding is completed, and liquid line 11 is screwed on the riffled tube A24 of switch, dropper 14 is screwed to the riffled tube of switch
On B25, finally piston 41 and piston rod 42 are inserted into liquid line 11, just complete whole assembly workings.
Then start to be tested.One hand holds casing 13, and another hand gently pushes piston rod 42, by liquid line 11
Dropper 14, then extend into reagent bottle by interior air emptying, reversed to pull piston rod 42, and the solution in reagent bottle is drawn onto
In liquid line 11.
After the completion of taking liquid, the utility model is installed on holding frame, holding frame clamps casing 13.In clamping process, need
The position for adjusting casing 13 makes to can be improved two in this way in the groove 3 on the spring clip to 13 outer wall of casing on holding frame
Frictional force between person avoids sliding.
After the completion of clamping, plug 44 is pulled out, liquid line 11 passes through air hole 43 and ambient atmosphere connection at this time.Rotation rotation
The solution of button 24, liquid line 11 can be flowed out along through-hole 23 and dropper 14.When not used, knob 24 is rotated backward, makes to switch
It closes, and plug 44 is turned back to again in air hole 43.
Plug 44 is hingedly formed by section A and section B, and when pushing ahead piston 41, section A and section B are entered in liquid line 11, section
B can be rotated with it.After reversed pull-out piston 41, operator holds section B, and section A is pulled out out of air hole 43.Because of liquid
Body pipe 11 it is thinner, the distance of plug 44 and piston 41 is also very close, and inclined section of B pulls up more laborsaving.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations,
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that,
It can still modify to technical solution documented by previous embodiment, or be equal to part of technical characteristic
Replacement, and these are modified or replaceed, the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (7)
1. a kind of jacket type buret, it is characterised in that: including liquid line (11), the branch being fixed on liquid line (11) outer surface
Pushing out ring (12), the casing (13) being located on support ring (12), the switch for being located at liquid line (11) lower end, the dropper being located on switch
(14) and the liquid absorption device that is located in liquid line (11).
2. a kind of jacket type buret according to claim 1, it is characterised in that: the support ring (12) is bonded in liquid
On the outer surface for managing (11).
3. a kind of jacket type buret according to claim 2, it is characterised in that: described sleeve pipe (13) is bonded in support ring
(12) on outer surface.
4. a kind of jacket type buret according to claim 1, it is characterised in that: it is described switch include glass tube (21),
It is located at the rotational pin (22) being rotatablely connected in glass tube (21) and with it, the through-hole (23) being opened on rotational pin (22), is located at and turns
The knob (24) of dynamic pin (22) one end, the riffled tube A(25 with glass tube (21) perforation connection) and penetrate through with glass tube (21)
The riffled tube B(26 of connection)；
Axis of the axis of the through-hole (23) perpendicular to rotational pin (22)；
The riffled tube A(25) axis it is parallel with the axis of riffled tube B(26)；
The riffled tube A(25) axis perpendicular to glass tube (21) axis；
The riffled tube A(25) it is connect with liquid line (11)；
The riffled tube B(26) it is connect with dropper (14).
5. a kind of jacket type buret according to claim 1, it is characterised in that: the outer wall of described sleeve pipe (13) is equipped with
Groove (3).
6. a kind of jacket type buret according to claim 1, it is characterised in that: the liquid absorption device includes and liquid line
(11) piston (41) that is slidably connected, the piston rod (42) being located on piston (41) top surface, the air hole being opened on piston (41)
(43) and the plug (44) that is inserted in air hole (43).
7. a kind of jacket type buret according to claim 6, it is characterised in that: the plug (44) include section A and with
The section B of section A rotation connection；
Described section of A is inserted into air hole (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821674251.8U CN209020408U (en) | 2018-10-16 | 2018-10-16 | A kind of jacket type buret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821674251.8U CN209020408U (en) | 2018-10-16 | 2018-10-16 | A kind of jacket type buret |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209020408U true CN209020408U (en) | 2019-06-25 |
Family
ID=66906813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821674251.8U Expired - Fee Related CN209020408U (en) | 2018-10-16 | 2018-10-16 | A kind of jacket type buret |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209020408U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156820A (en) * | 2020-08-28 | 2021-01-01 | 江苏福维健康科技有限公司 | Dropper with accurate metering function and using method thereof |
-
2018
- 2018-10-16 CN CN201821674251.8U patent/CN209020408U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156820A (en) * | 2020-08-28 | 2021-01-01 | 江苏福维健康科技有限公司 | Dropper with accurate metering function and using method thereof |
| CN112156820B (en) * | 2020-08-28 | 2022-01-07 | 江苏福维健康科技有限公司 | Dropper with accurate metering function and using method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190625 Termination date: 20201016 |