CN214486936U - Adjustable quantitative extrusion device - Google Patents
Adjustable quantitative extrusion device Download PDFInfo
- Publication number
- CN214486936U CN214486936U CN202120207580.7U CN202120207580U CN214486936U CN 214486936 U CN214486936 U CN 214486936U CN 202120207580 U CN202120207580 U CN 202120207580U CN 214486936 U CN214486936 U CN 214486936U
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- CN
- China
- Prior art keywords
- pipe
- adjustable
- hollow guide
- vertical
- snap ring
- 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
- 238000001125 extrusion Methods 0.000 title claims abstract description 13
- 239000010902 straw Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000003801 milling Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000013043 chemical agent Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 1
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 9
- 230000005484 gravity Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- Closures For Containers (AREA)
Abstract
The utility model relates to an adjustable ration extrusion device, for filling prior art blank, this adjustable ration extrusion device includes the container bottle, the straw, first check valve, the second check valve, coil spring, according to the head, hollow guide pillar, adjustable nut cap and trusteeship, trusteeship sets up in the interface tube, big annular outward flange pressure on it is on the last edge of interface tube, it has central through-hole to open on the adjustable nut cap roof, according to the head including the standpipe and violently manage, the central through-hole at the roof is worn to establish by the standpipe, it is gapped between central through-hole pore wall and the standpipe, the container bottle communicates with each other with external atmosphere, be equipped with annular snap ring on according to the standpipe of head or the hollow guide pillar, this annular snap ring upper surface supports on the roof, coil spring overlaps on according to the standpipe and the hollow guide pillar of head, its upper and lower both ends support respectively on the little annular snap ring outward flange of annular snap ring and straw. The utility model discloses simple structure, it is convenient, accurate to adjust, is fit for multiple chemical agent and uses when especially being fit for field collection water sample filling luge reagent.
Description
Technical Field
The utility model relates to an adjustable ration extrusion device.
Background
In the water ecology research, after a water sample is collected in the field, a proper amount of Rugo reagent(s) needs to be added into the water sample as soon as possibleNote: the preparation method of the Lugo reagent comprises the following steps: dissolving 6 g of potassium iodide in 20ml of water, adding 4 g of iodine after the potassium iodide is completely dissolved, and fully shaking the mixture until the potassium iodide is completely dissolved Dissolving iodine, adding distilled water to desired volume of 100mlAnd performing biological fixation, wherein the standard dosage is five thousandths, namely, five milliliters of Lugo reagent is added into every 1000 milliliters of water sample. However, when sampling is carried out in the field, the volume of the collected water sample is not always an integer, and the accurate Lugo reagent is added after conversion is needed, and the adoption of a measuring cup and a measuring cylinder in the field environment is inconvenient.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is how to overcome prior art's above-mentioned blank, provide an adjustable ration extrusion device that can the accurate adjustment, be convenient for field usage.
In order to solve the technical problem, the adjustable quantitative extrusion device comprises a container bottle, a suction pipe, a first check valve, a second check valve, a spiral spring, a press head and a hollow guide pillar, wherein the press head is in up-and-down butt joint with the hollow guide pillar, liquid channels are respectively arranged in the press head and the hollow guide pillar, the first check valve and the second check valve respectively comprise a spherical valve core and an inverted cone tubular valve seat, the specific gravity of the spherical valve core is greater than the specific gravity of a matched liquid, the large end of the inverted cone tubular valve seat is arranged at the upper part, the small end of the inverted cone tubular valve seat is arranged at the lower part, the small end internal diameter of the corresponding inverted cone tubular valve seat is smaller than the spherical valve core diameter and smaller than the large end internal diameter of the corresponding inverted cone tubular valve seat, and a connector pipe with external threads is arranged at the top of the container bottle, and the adjustable quantitative extrusion device is characterized in that: the adjustable screw cap comprises a top plate and an internal thread pipe, the top plate is fixedly connected with the internal thread pipe, a central through hole is arranged on the top plate, the pressing head comprises a vertical pipe and a transverse pipe, the top of the vertical pipe is sealed and connected with the transverse pipe, the first one-way valve is arranged on the inner cavity of the vertical pipe of the pressing head, the second one-way valve is arranged on an inner cavity at the lower end of the suction pipe, the vertical pipe penetrates through a central through hole of the top plate, a gap is reserved between the hole wall of the central through hole and the vertical pipe, the container bottle is communicated with the outside atmosphere, an annular clamping ring is arranged on the vertical pipe or the hollow guide pillar of the press head, the upper surface of the annular clamping ring abuts against the top plate, the spiral spring is sleeved on the hollow guide pillar, and the upper end and the lower end of the spiral spring respectively abut against the annular clamping ring and a small annular outer flange of the suction pipe.
The internal thread pipe of the adjustable nut cap is provided with an internal thread corresponding to the external thread of the mouth-piece and is arranged on the mouth-piece in a rotating mode.
Before use, the adjustable screw cap is unscrewed from the mouth-piece, the adjustable screw cap, the support tube, the press head, the hollow catheter, the suction tube and other components are integrally taken out of the container bottle, then a proper amount of Rugo reagent is poured into the container bottle, and finally the adjustable screw cap and other components are taken out. When in use, the press head is pressed first to exhaust air. And calculating the volume of the Rugo reagent to be extruded, dividing the volume by the cross sectional area of the inner cavity of the pipette to obtain the height difference of the up-down stroke of the press head, and rotating the adjustable screw cap to enable the up-down stroke difference of the press head to be equal to the height difference. Then the head is pressed once to extrude the corresponding amount of the Rogox agent.
The design is simple in structure and convenient to use.
Preferably, a vertical milling groove is milled on the outer wall of the interface tube, and horizontal scale marks which are uniformly distributed are arranged on the vertical milling groove.
When the adjustable screw cap descends to a bottom dead center, the spiral spring is compressed to a minimum height and is in an incompressible state, the pressing head is pressed and released once at the moment, the elastic spiral spring cannot rebound, the extruded Luge reagent is 0, and the exposed horizontal scale mark of the lower edge of the adjustable screw cap is 0.
When the adjustable screw cap is screwed up to the top dead center, the spiral spring is positioned at the highest design height capable of rebounding, the rebounding force of the spiral spring is still enough to suck the corresponding amount of the Rogog reagent, and at the moment, the exposed horizontal scale line of the lower edge of the adjustable screw cap is the maximum design extrusion amount.
By the design, after the adjustable screw cap is screwed to a corresponding position, the press head is pressed and released once, the extruded Lugo reagent is just equal to the numerical value obtained by multiplying the difference of the up-down stroke of the press head by the cross sectional area of the inner cavity of the pipette.
Preferably, N vertical scale marks which are uniformly distributed around the axial lead of the internal thread pipe are arranged on the outer wall of the internal thread pipe, a triangular indication mark is arranged on the container bottle, N is a positive integer and is not less than 10 and not more than 30. When the adjustable screw cap rotates to lower the dead point, the vertical scale mark opposite to the tip of the triangular indication mark is 0.
The thread pitch of the internal thread of the adjustable nut cap is set to be A, the liftable height of the press head correspondingly increases or decreases one thread pitch A every time the adjustable nut cap rotates for one circle, and the liftable height of the press head correspondingly increases or decreases one thread pitch N times, namely A/N every time the adjustable nut cap rotates for one scale.
By the design, the triangular indication marks and the annularly distributed vertical scale lines form a similar micrometer caliper structure, and the lifting precision of the adjustable nut cover can be accurately adjusted to one-N pitch through the annularly distributed vertical scale lines.
The utility model discloses adjustable ration extrusion device simple structure, it is convenient, accurate to adjust, is fit for multiple chemical agent and uses when especially being fit for field collection water sample filling luge reagent.
Drawings
The adjustable quantitative extruding device is further described by combining the attached drawings as follows:
FIG. 1 is a schematic sectional view (taken along a vertical plane passing through the axis) of the adjustable quantitative extruder;
FIG. 2 is a schematic view of the adjustable quantitative extruding apparatus shown in FIG. 1, when the pressing head is pressed to the bottom dead center, the liquid is extruded;
fig. 3 is a schematic perspective view of the adjustable screw cap, the container bottle (partially) and the mouthpiece on the container bottle in the device of fig. 1 and 2.
In the figure: the bottle comprises a container bottle 1, a triangular indication mark 101, a straw 2, a small annular outer flange 21, a vertical milling groove 22, a horizontal scale mark 23, a first one-way valve 3, a second one-way valve 4, a spiral spring 5, a press head 6, a standpipe 61, a transverse pipe 62, a hollow guide post 7, a liquid channel 8, a spherical valve core 9, an inverted conical pipe-shaped valve seat 10, a mouthpiece 11, an adjustable screw cap 12, a top plate 121, an internal threaded pipe 122, a central through hole 123, a vertical scale mark 124, a support pipe 13, a large annular outer flange 131, an annular inner flange 132, an O-shaped sealing ring 14, an annular snap ring 15 and a vent hole 16.
Detailed Description
The first implementation mode comprises the following steps: as shown in fig. 1-3, the adjustable quantitative extruding device comprises a container bottle 1, a straw 2, a first check valve 3, a second check valve 4, a coil spring 5, a press head 6 and a hollow guide post 7, wherein the press head 6 is in up-and-down butt joint with the hollow guide post 7, liquid channels 8 are respectively arranged in the press head 6 and the hollow guide post 7, the first check valve 3 and the second check valve 4 respectively comprise a spherical valve core 9 and an inverted cone tubular valve seat 10, the specific gravity of the spherical valve core 9 is greater than that of a matched liquid, the large end of the inverted cone tubular valve seat 10 is arranged on the upper side, the small end of the inverted cone tubular valve seat 10 is arranged on the lower side, the inner diameter of the small end of the corresponding inverted cone valve seat 10 is less than that the diameter of the spherical valve core 7 is less than that of the large end of the corresponding inverted cone valve seat 10, and a connector tube 11 with external threads is arranged at the top of the container bottle 1, and is characterized in that: the adjustable screw cap further comprises an adjustable screw cap cover 12 and a supporting tube 13, the lower part of the hollow guide post 7 is inserted into the straw 2, the lower part of the hollow guide post 7 is provided with an O-shaped sealing ring 14, the outer edge of the O-shaped sealing ring 14 is contacted with the inner wall of the straw 2, the upper end of the supporting tube 13 is provided with a large annular outer flange 131, the lower end of the supporting tube 13 is provided with an annular inner flange 132, the top of the straw 2 is provided with a small annular outer flange 21, the straw 2 is arranged in the supporting tube 13 in a penetrating way and clamped on the annular inner flange 132 of the supporting tube 13 through the small annular outer flange 21 at the top of the straw, the supporting tube 13 is arranged in the connector tube 11, the large annular outer flange 131 is pressed on the upper edge of the connector tube 11, the adjustable screw cap cover 12 comprises a top plate 121 and an inner threaded tube 122, the top plate 121 is fixedly connected with the inner threaded tube 122, a central through hole 123 is arranged on the top plate 121, the pressing head 6 comprises a vertical tube 61 and a horizontal tube 62, the top of the vertical tube 61 is closed, and is connected with the horizontal tube 62, the first check valve 3 is arranged on the inner cavity of the vertical tube 61 of the press head 6, the second check valve 4 is arranged on the inner cavity of the lower end of the suction tube 2, the vertical tube 61 is arranged in the central through hole 123 of the top plate 121 in a penetrating manner, a gap is arranged between the hole wall of the central through hole 123 and the vertical tube 61, and the annular inner flange 132 of the supporting tube 13 is provided with a vent hole 16. The flask 1 is vented to the atmosphere through the vent hole 16 and the gap between the central through hole 123 and the standpipe 61.
An annular clamping ring 15 is arranged on a vertical pipe or a hollow guide post 7 of the pressing head 6, the upper surface of the annular clamping ring 15 is abutted against a top plate 121, the hollow guide post is sleeved with the spiral spring 5, and the upper end and the lower end of the spiral spring are respectively abutted against the annular clamping ring 15 and a small annular outer flange 21 of the suction pipe 2.
The internal thread tube 122 of the adjustable nut cap 12 is provided with an internal thread corresponding to the external thread of the mouthpiece 11, and is screwed on the mouthpiece 11.
The outer wall of the mouthpiece 11 is milled with a vertical milling groove 22, and the vertical milling groove 22 is provided with uniform horizontal scale marks 23.
The outer wall of the internal thread tube 122 is provided with N vertical scale marks 124 which are uniformly distributed around the axial lead of the internal thread tube, the container bottle 1 is provided with a triangular indication mark 101, N is a positive integer and is not less than 10 and not more than 30.
The present invention includes but is not limited to the above embodiments, and any product according to the description of the patent claims of the present invention falls within the protection scope of the present invention.
Claims (3)
1. The utility model provides an adjustable ration extrusion device, includes container bottle, straw, first check valve, second check valve, coil spring, button and hollow guide pillar, butt joint from top to bottom according to the head with hollow guide pillar, and be equipped with the liquid passage in button and the hollow guide pillar respectively, first check valve, second check valve all include spherical case and the tubular disk seat of back taper, the proportion of spherical case is greater than adapted liquid proportion, the main aspects of the tubular disk seat of back taper is last, and the tip internal diameter of the tubular disk seat of corresponding back taper < spherical case diameter < the main aspects internal diameter of the tubular disk seat of corresponding back taper, and container bottle top is equipped with the mouthpiece of outband screw thread, its characterized in that: the adjustable screw cap comprises a top plate and an internal thread pipe, the top plate is fixedly connected with the internal thread pipe, a central through hole is arranged on the top plate, the pressing head comprises a vertical pipe and a transverse pipe, the top of the vertical pipe is sealed and connected with the transverse pipe, the first one-way valve is arranged on the inner cavity of the vertical pipe of the pressing head, the second one-way valve is arranged on an inner cavity at the lower end of the suction pipe, the vertical pipe is arranged in a central through hole of the top plate in a penetrating way, a gap is reserved between the hole wall of the central through hole and the vertical pipe, the container bottle is communicated with the outside atmosphere, the vertical pipe or the hollow guide post of the press head is provided with an annular snap ring, the upper surface of the annular snap ring is propped against the top plate, the spiral spring is sleeved on the hollow guide post, the upper end and the lower end of the spiral spring are respectively propped against the annular snap ring and the small annular outer flange of the suction pipe,
the internal thread pipe of the adjustable nut cap is provided with an internal thread corresponding to the external thread of the mouth-piece and is arranged on the mouth-piece in a rotating mode.
2. An adjustable metering extrusion apparatus as set forth in claim 1 wherein: the outer wall of the interface tube is milled with a vertical milling groove, and the vertical milling groove is provided with uniformly distributed horizontal scale marks.
3. An adjustable metering extrusion apparatus as claimed in claim 1 or claim 2 wherein: the outer wall of the internal thread pipe is provided with N vertical scale marks which are uniformly distributed around the axial lead of the internal thread pipe, the container bottle is provided with a triangular indication mark, N is a positive integer and is not less than 10 and not more than 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207580.7U CN214486936U (en) | 2021-01-25 | 2021-01-25 | Adjustable quantitative extrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207580.7U CN214486936U (en) | 2021-01-25 | 2021-01-25 | Adjustable quantitative extrusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214486936U true CN214486936U (en) | 2021-10-26 |
Family
ID=78216856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120207580.7U Expired - Fee Related CN214486936U (en) | 2021-01-25 | 2021-01-25 | Adjustable quantitative extrusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214486936U (en) |
-
2021
- 2021-01-25 CN CN202120207580.7U patent/CN214486936U/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: 20211026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |