CN209576724U - A kind of Special combined dropper for chemical laboratory - Google Patents
A kind of Special combined dropper for chemical laboratory Download PDFInfo
- Publication number
- CN209576724U CN209576724U CN201920073543.4U CN201920073543U CN209576724U CN 209576724 U CN209576724 U CN 209576724U CN 201920073543 U CN201920073543 U CN 201920073543U CN 209576724 U CN209576724 U CN 209576724U
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- CN
- China
- Prior art keywords
- dropper
- rubber head
- fixed
- fixedly connected
- hole
- 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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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model discloses a kind of Special combined dropper for chemical laboratories, including rubber head and dropper, the dropper includes fixed dropper and movable dropper, the activity dropper lower end is fixedly connected with taper water dropper, the lower end of the fixed dropper is connect with the threaded upper ends of movable dropper, and the fixed dropper side wall is equipped with first through hole；The rubber head includes interior rubber head and outer rubber head, interior rubber head setting inside outer rubber head, the lower end of the interior rubber head is connected and is fixedly connected with the upper end of fixed dropper, is rotatably connected to limit sleeve outside the fixed dropper, the limit sleeve lower end is fixedly connected with outer rubber head lower end.The utility model adjusts the amount of draw solution by rubber head and outer rubber head in being arranged, easy to operate, adjusts the length and capacity of dropper by the way that fixed dropper and movable dropper is arranged, and suitable for container of various shapes and can draw the solution of different liquid levels, flexibility ratio height.
Description
Technical field
The utility model relates to chemical experiment equipment technical fields more particularly to a kind of chemical laboratory special combination to drip
Pipe.
Background technique
Rubber head dropper is also known as Capsule dropper, it is a kind of instrument for drawing or being added dropwise a small amount of liquid reagent.Rubber head drop
Pipe is made of Capsule and glass tube, has straight, straight to have buffering ball and bending to have several forms such as buffering ball.
Rubber head dropper is that rubber head cap is directly sleeved on glass tube to use in usual laboratory, in use for laboratory rubber head dropper
Rubber head dropper used is regular length when taking liquid reagent or medical fluid, when the container bottle neck of institute's holding liquid is longer or liquid level and flat
Mouthful apart from it is larger when, often rubber head dropper can not get liquid, and the range of capacity of dropper is small, different capabilities dropwise addition test
Middle flexibility ratio is poor.
Utility model content
The problem of not being adjustable purpose of the utility model is to solve the length of dropper in the prior art and capacity, and
The Special combined dropper for chemical laboratory of a kind of adjustable the dropper length and capacity that propose.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of Special combined dropper for chemical laboratory, including rubber head and dropper, the dropper include fixed dropper and activity
Dropper, the activity dropper lower end are fixedly connected with taper water dropper, the upper end spiral shell of the lower end of the fixed dropper and movable dropper
Line connection, the fixed dropper side wall are equipped with first through hole；
The rubber head includes interior rubber head and outer rubber head, and the interior rubber head is arranged inside outer rubber head, under the interior rubber head
It holds and is connected and is fixedly connected with the upper end of fixed dropper, limit sleeve, the limit sleeve are rotatably connected to outside the fixed dropper
Lower end is fixedly connected with outer rubber head lower end, and the limit sleeve side wall is equipped with the second through-hole to match with first through hole.
Preferably, the limit sleeve lower end is fixedly connected with protruding ring.
Preferably, the protruding ring lower surface is equipped with raised marking, and the raised marking is located at the underface of the second through-hole,
The fixed dropper side wall is equipped with raised item, and the raised item is located at the underface of first through hole.
Preferably, the fixed dropper upper end is fixedly connected with restraining position ring block, and the stop collar lower surface is equipped with annular protrusion,
The lower end of the interior rubber head is fixedly connected with stop collar.
Preferably, the fixed dropper lower end surface is equipped with annular groove, and the annular groove side wall is equipped with internal screw thread, institute
Movable dropper side wall is stated equipped with external screw thread, the internal screw thread and external screw thread are fine thread.
Compared with prior art, the utility model has following advantages:
1, the utility model adjusts rotation dropper and fixation by the way that fixed dropper and movable dropper, rotation activity dropper is arranged
The position of dropper achievees the purpose that adjust dropper capacity and length.
2, the utility model keeps dropper and outer rubber head and interior rubber head same by rubber head in being arranged and outer rubber head, rotary spacing set
Shi Liantong is only connected to interior rubber head, to achieve the purpose that control the big minor adjustment of rubber head inspiratory capacity.
In conclusion the utility model moves limit sleeve rotation by pivot protrusion annulus, make first through hole and the second through-hole
It to it or is staggered to switch and use interior rubber head and outer rubber head, passes through the fixation dropper for rotating and being threadedly coupled and dripped with movable dropper adjusting
Tube capacity amount and length.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of Special combined dropper for chemical laboratory schematic diagram of internal structure；
Fig. 2 is enlarged diagram at A in Fig. 1；
Fig. 3 be the utility model proposes a kind of Special combined dropper for chemical laboratory external structure schematic diagram.
In figure: 1 rubber head, 2 droppers, 3 fixed droppers, 4 movable droppers, 5 first through hole, rubber head, 7 outer rubber heads, 8 limit in 6
Set, 9 second through-holes, 10 protruding rings, 11 raised markings, 12 raised items, 13 stop collars, 14 annular protrusions, 15 annular grooves, in 16
Screw thread, 17 external screw threads, 18 taper water droppers.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
This is practical for ease of description and simplifies description, rather than the device or element of indication or suggestion meaning must have specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as the limitation practical to this.
Referring to Fig.1-3, a kind of Special combined dropper for chemical laboratory, including rubber head 1 and dropper 2, dropper 2 include fixed drop
Pipe 3 and movable dropper 4,4 lower end of the activity dropper are fixedly connected with taper water dropper 18, it is worth mentioning at this point that, on fixed dropper 3
End is fixedly connected with restraining position ring block 13, and stop collar 13 limits the position of fixed dropper 3 in the vertical direction, 13 lower surface of stop collar
Equipped with annular protrusion 14, retention bead 14 keeps the connection between stop collar 13 and interior rubber head 6 stronger, under fixed dropper 3
It holds and is connect with the threaded upper ends of movable dropper 4, it should be noted that fixed 3 lower end surface of dropper is equipped with annular groove 15, and annular is recessed
15 side wall of slot is equipped with external screw thread 17 equipped with internal screw thread 16, movable 4 side wall of dropper, and setting is so that fixing dropper 3 and living in this way
Airtightness is more preferable between dynamic dropper 4, in combination dropper in use, being not susceptible to cause because of gas leakage in dropper 2 caused by solution outflow
Pollution, internal screw thread 16 and external screw thread 17 are fine thread, and fine thread self-locking property is good, can arbitrarily adjustment activity dropper 4 with
Link position between fixed dropper 3, fixed 3 side wall of dropper are equipped with first through hole 5.
In the utility model, rubber head 1 includes interior rubber head 6 and outer rubber head 7, and interior rubber head 6 is arranged inside outer rubber head 7, interior glue
First 6 lower end is connected and is fixedly connected with the upper end of fixed dropper 3, is rotatably connected to limit sleeve 8 outside fixed dropper 3, is worth
One is mentioned that, 8 lower end of limit sleeve is fixedly connected with protruding ring 10, and convenient hold rotates, under 8 lower end of limit sleeve and outer rubber head 7
End is fixedly connected, and 8 side wall of limit sleeve is equipped with the second through-hole 9 to match with first through hole 5, it should be noted that protruding ring
10 lower surfaces are equipped with raised marking 11, and raised marking 11 is located at the underface of the second through-hole 9, and fixed 3 side wall of dropper is equipped with convex
Item 12 is played, raised item 12 is located at the underface of first through hole 5, and wherein first through hole 5 and the quantity of the second through-hole 9 are two,
First through hole 5 and 9 horizontal position of the second through-hole are corresponding and size is coincide.
The utility model can illustrate its principle of work and power by following mode of operation: the utility model passes through pivot protrusion ring 10
It drives limit sleeve 8 to rotate, keeps first through hole 5 and the second through-hole 9 corresponding or be staggered according to raised marking 11 and raised item 12, make
Dropper 2 is only connected to interior rubber head 6 or is connected to simultaneously with interior rubber head 6 and outer rubber head 7, to adjust the capacity of rubber head 1, changes chemistry
The inspiratory capacity of laboratory Special combined dropper, by the position of 4 adjusting activity dropper 4 of rotation activity dropper and fixed dropper 3, from
And the length and capacity of dropper 2 are adjusted, to adapt to the middle liquid level of different vessels and the solution needed for length and experiment of bottleneck
Dosage, so that considerably increasing Special combined dropper for chemical laboratory is testing flexibility when using.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of Special combined dropper for chemical laboratory, including rubber head (1) and dropper (2), which is characterized in that the dropper (2)
Including fixed dropper (3) and movable dropper (4), described activity dropper (4) lower end is fixedly connected with taper water dropper (18), described solid
The lower end for determining dropper (3) is connect with the threaded upper ends of movable dropper (4), and fixed dropper (3) side wall is equipped with first through hole
(5)；
The rubber head (1) includes interior rubber head (6) and outer rubber head (7), and the interior rubber head (6) is arranged inside outer rubber head (7), described
The lower end of interior rubber head (6) is connected and is fixedly connected with the upper end of fixed dropper (3), and the fixed dropper (3) is rotatablely connected outside
Have limit sleeve (8), limit sleeve (8) lower end is fixedly connected with the lower end of outer rubber head (7), is set on limit sleeve (8) side wall
There is the second through-hole (9) to match with first through hole (5).
2. a kind of Special combined dropper for chemical laboratory according to claim 1, which is characterized in that the limit sleeve (8)
Lower end is fixedly connected with protruding ring (10).
3. a kind of Special combined dropper for chemical laboratory according to claim 2, which is characterized in that the protruding ring (10)
Lower surface is equipped with raised marking (11), and the raised marking (11) is located at the underface of the second through-hole (9), the fixed dropper
(3) side wall is equipped with raised item (12), and the raised item (12) is located at the underface of first through hole (5).
4. a kind of Special combined dropper for chemical laboratory according to claim 1, which is characterized in that the fixed dropper
(3) upper end is fixedly connected restraining position ring block (13), and stop collar (13) lower surface is equipped with annular protrusion (14), the interior rubber head
(6) lower end is fixedly connected with stop collar (13).
5. a kind of Special combined dropper for chemical laboratory according to claim 1, which is characterized in that the fixed dropper
(3) lower end surface is equipped with annular groove (15), and annular groove (15) side wall is equipped with internal screw thread (16), the activity dropper
(4) side wall is equipped with external screw thread (17), and the internal screw thread (16) and external screw thread (17) are fine thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920073543.4U CN209576724U (en) | 2019-01-16 | 2019-01-16 | A kind of Special combined dropper for chemical laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920073543.4U CN209576724U (en) | 2019-01-16 | 2019-01-16 | A kind of Special combined dropper for chemical laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209576724U true CN209576724U (en) | 2019-11-05 |
Family
ID=68352820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920073543.4U Expired - Fee Related CN209576724U (en) | 2019-01-16 | 2019-01-16 | A kind of Special combined dropper for chemical laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209576724U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632251A (en) * | 2019-11-06 | 2019-12-31 | 青海省药品检验检测院 | Titration apparatus and inspection apparatus for drug color contrast detection |
| CN114308171A (en) * | 2022-01-04 | 2022-04-12 | 哈尔滨学院 | Dropper for chemistry experiments |
-
2019
- 2019-01-16 CN CN201920073543.4U patent/CN209576724U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632251A (en) * | 2019-11-06 | 2019-12-31 | 青海省药品检验检测院 | Titration apparatus and inspection apparatus for drug color contrast detection |
| CN114308171A (en) * | 2022-01-04 | 2022-04-12 | 哈尔滨学院 | Dropper for chemistry experiments |
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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: 20191105 Termination date: 20210116 |