CN214681813U - Adjustable quantitative liquid feeder - Google Patents
Adjustable quantitative liquid feeder Download PDFInfo
- Publication number
- CN214681813U CN214681813U CN202120396050.1U CN202120396050U CN214681813U CN 214681813 U CN214681813 U CN 214681813U CN 202120396050 U CN202120396050 U CN 202120396050U CN 214681813 U CN214681813 U CN 214681813U
- Authority
- CN
- China
- Prior art keywords
- plunger
- fixed
- bottle
- liquid
- bottle cap
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 210000003811 finger Anatomy 0.000 description 7
- 210000004247 hand Anatomy 0.000 description 3
- 239000003124 biologic agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- -1 radioactive isotopes Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
An adjustable quantitative liquid feeder comprises a bottle cap fixed at the mouth of a bottle body, a plunger fixed on the bottle cap, a liquid suction pipe connected with the bottom of a plunger pipe of the plunger, a liquid outlet pipe connected with the lower side part of the plunger pipe, and a liquid injection pipe fixed on the upper part of the bottle cap; the bottle cover is further fixed with a scale, a positioning block capable of sliding up and down is arranged on the scale, the upper end of a plunger rod of the plunger is fixedly connected with a sliding block, and the sliding block can freely slide below the positioning block. The utility model has the advantages of convenient and fast operation, and can improve the efficiency of the experiment; and the quantitative positioning is accurate, the positioning is stable and immovable, and the maintenance is convenient.
Description
Technical Field
The utility model relates to an experimental apparatus technical field specifically is an adjustable quantitative liquid feeding ware.
Background
The adjustable quantitative liquid adding device is a device for continuously and quantitatively adding liquid to various test solutions, radioactive isotopes, biological agents and the like in a chemical analysis experiment in a laboratory. Consists of a liquid storage bottle and a liquid filler. The liquid filler is arranged on a bottle cap of a bottle mouth, and liquid is quantitatively and directionally moved by mainly utilizing the reciprocating motion of a plunger of a syringe needle cylinder and two one-way valves to add liquid. The moving height of the piston rod is mainly measured and positioned by a scale, and a positioning block is arranged on the scale to limit the maximum height of the piston rod, so that the liquid is extracted and sprayed quantitatively.
The existing mechanical positioning block is mostly pressed and positioned by using a threaded fastener, and the mechanical positioning block has the defects of long operation time: it takes a long time to unscrew and tighten the screw; the operation is complicated: often need both hands to operate, and one hand is twisted and is moved the operation, and the liquid filler is fixed to the other hand to take place the body and rock.
Disclosure of Invention
The utility model aims at providing an adjustable quantitative liquid feeder which has the advantages of convenient and rapid operation and can improve the efficiency of the experiment; and the quantitative positioning is accurate, the positioning is stable and immovable, and the maintenance is convenient.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an adjustable quantitative liquid feeder comprises a bottle cap fixed at the mouth of a bottle body, a plunger fixed on the bottle cap, a liquid suction pipe connected with the bottom of a plunger pipe of the plunger, a liquid outlet pipe connected with the lower side part of the plunger pipe, and a liquid injection pipe fixed on the upper part of the bottle cap; the bottle cover is further fixed with a scale, a positioning block capable of sliding up and down is arranged on the scale, the upper end of a plunger rod of the plunger is fixedly connected with a sliding block, and the sliding block can freely slide below the positioning block.
The liquid suction pipe is provided with a one-way valve (one-way piston), when the plunger rod moves upwards, liquid can be sucked into the plunger tube from the bottle in one way, the liquid outlet pipe is provided with a one-way valve (one-way piston), when the plunger rod moves downwards, the liquid can be injected into the liquid injection pipe from the plunger tube in one way, and then the liquid injection pipe injects the liquid into other external containers.
The locating piece includes the fixed block, sets up the slide opening in the middle of the fixed block, inserts in the slide opening and presses the body, presses body bottom to be connected with the fixed block through the pressure spring, and the fixed block all sets up the through-hole with pressing the body and lets the scale pass. When no external force acts on the pressing body, the pressure spring generates leftward thrust on the pressing body, and the pressure spring generates rightward thrust on the fixing block, so that the positioning block clamps the scale, and the positioning function is realized. When an operator pinches and presses two sides of the positioning block by two fingers, the pressing body is inserted into the sliding hole under the action of the pressure spring, the clamping force disappears, and the positioning block can freely move up and down along the scale.
The upper end of the plunger rod is provided with a finger ring. The finger ring can facilitate an operator to penetrate fingers for carrying out lifting or pressing operation, and the function of operating the plunger rod up and down by a single hand can be realized.
The bottle cap is connected with the bottle mouth of the bottle body in a sealing mode through threads.
The utility model has the advantages that:
(1) the utility model changes the current situation that one hand holds the bottle body and the other hand screws the positioning block tightly in the traditional adjustable quantitative liquid feeder; the bottle body is placed on the desktop, the positioning block is held between the fingers of one hand, the positioning block is moved to a preset position, the positioning block is released, the automatic clamping and positioning effects of the positioning block can be achieved, convenience and fastness are achieved, convenience of an experiment is greatly improved, and both hands of an experimenter are liberated.
(2) The utility model discloses in having changed the adjustable quantitative liquid filler of tradition, a hand is held tightly the body, and another hand carries the current situation that draws and press the operation to the plunger rod, only needs the forefinger and the middle finger of one hand to press from both sides tight body, and the thumb penetrates the ring, carries to carry or presses the operation of plunger rod and can accomplish, has further liberated experimenter's both hands.
Description of the drawings:
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is an enlarged view of the structure at I in FIG. 1;
the components in the figure are identified as: 1. a bottle body; 2. a bottle cap; 3. a liquid injection pipe; 41. a plunger rod; 42. a slider; 43. a plunger tube; 44. a pipette; 45. a liquid outlet pipe; 46. a ring; 5. a scale; 61. a fixed block 62 and a pressing body; 63. and (5) pressing a spring.
Detailed Description
Example 1
An adjustable quantitative liquid adding device comprises a bottle cap 2 fixed at the mouth of a bottle body 1, a plunger fixed on the bottle cap 2, a liquid suction pipe 44 connected with the bottom of a plunger pipe 43 of the plunger, a liquid outlet pipe 45 connected with the lower side part of the plunger pipe 43, and a liquid injection pipe 3 fixed on the upper part of the bottle cap 2 and connected with the liquid outlet pipe 45; a scale 5 is further fixed on the bottle cap 2, a positioning block capable of sliding up and down is arranged on the scale 5, a sliding block 42 is fixedly connected to the upper end of a plunger rod 41 of the plunger, and the sliding block 42 can freely slide below the positioning block;
the positioning block comprises a fixing block 61, a sliding hole is formed in the middle of the fixing block 61, a pressing body 62 is inserted into the sliding hole, the bottom of the pressing body 62 is connected with the fixing block 61 through a pressure spring 63, and the fixing block 61 and the pressing body 62 are both provided with through holes for the scale 5 to pass through;
the upper end of the plunger rod 41 is provided with a finger ring 46;
the bottle cap 2 is connected with the bottle mouth of the bottle body 1 in a sealing mode through threads.
Claims (4)
1. An adjustable quantitative liquid filler which is characterized in that: a bottle cap (2) is fixed at the mouth of the bottle body (1), a plunger is fixed on the bottle cap (2), the bottom of a plunger tube (43) of the plunger is connected with a liquid suction tube (44), the lower side part of the plunger tube (43) is connected with a liquid outlet tube (45), and the liquid outlet tube (45) is connected with a liquid injection tube (3) fixed at the upper part of the bottle cap (2); still fixed scale (5) on bottle lid (2), set up gliding locating piece from top to bottom on scale (5), plunger rod (41) upper end fixed connection slider (42) of plunger, slider (42) can freely slide below the locating piece.
2. The adjustable quantitative liquid filler as claimed in claim 1, wherein: the locating piece includes fixed block (61), sets up the slide opening in the middle of fixed block (61), inserts in the slide opening and presses body (62), presses body (62) bottom to be connected with fixed block (61) through pressure spring (63), and fixed block (61) all set up the through-hole with pressing body (62) and let scale (5) pass.
3. The adjustable quantitative liquid filler as claimed in claim 1, wherein: the upper end of the plunger rod (41) is provided with a finger ring (46).
4. The adjustable quantitative liquid filler as claimed in claim 1, wherein: the bottle cap (2) is connected with the bottle mouth of the bottle body (1) in a sealing way through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120396050.1U CN214681813U (en) | 2021-02-23 | 2021-02-23 | Adjustable quantitative liquid feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120396050.1U CN214681813U (en) | 2021-02-23 | 2021-02-23 | Adjustable quantitative liquid feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214681813U true CN214681813U (en) | 2021-11-12 |
Family
ID=78568123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120396050.1U Expired - Fee Related CN214681813U (en) | 2021-02-23 | 2021-02-23 | Adjustable quantitative liquid feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214681813U (en) |
-
2021
- 2021-02-23 CN CN202120396050.1U patent/CN214681813U/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: 20211112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |