CN210906217U - Liquid quantitative transfer device - Google Patents
Liquid quantitative transfer device Download PDFInfo
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- CN210906217U CN210906217U CN201921728219.8U CN201921728219U CN210906217U CN 210906217 U CN210906217 U CN 210906217U CN 201921728219 U CN201921728219 U CN 201921728219U CN 210906217 U CN210906217 U CN 210906217U
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Abstract
The utility model provides a liquid ration transfer device relates to biochemical laboratory glassware technical field, liquid ration transfer device includes: a catheter and a lifting mechanism; the liquid guide pipe comprises a liquid inlet and a liquid outlet, and the lifting end of the lifting mechanism is connected with the liquid guide pipe and used for adjusting the position of the liquid inlet in the vertical direction; in the adjusting process, the liquid inlet can be in a state higher than the liquid outlet; the liquid guiding tube is provided with an air bag structure, a valve is arranged between the air bag structure and the liquid outlet, and the valve is used for controlling the connection/disconnection of a pipeline between the liquid outlet and the air bag structure.
Description
Technical Field
The utility model belongs to the technical field of biochemical laboratory glassware technique and specifically relates to a liquid ration transfer device is related to.
Background
At present, in experiments of scientific research work, the extraction or transfer of liquid is an indispensable step in a laboratory.
When a large amount of liquid is obtained from the measuring cup, a mode of directly pouring for many times is often adopted, a small amount of liquid can be poured firstly, then the scale corresponding to the liquid level is checked, and then the steps are repeated until the total amount of the poured liquid is equal to the required amount.
The existing liquid sampling mode has the defects of troublesome multiple sampling processes and large liquid sampling error, and the problem of pouring excessive solution for the last time can also occur.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a liquid ration transfer device to when having alleviated a large amount of samples in the prior art, it is troublesome to take a sample many times, and the technical problem that the error is big.
The embodiment of the utility model provides a pair of liquid ration transfer device, liquid ration transfer device includes: a catheter and a lifting mechanism;
the liquid guide pipe comprises a liquid inlet and a liquid outlet, and the lifting end of the lifting mechanism is connected with the liquid guide pipe and used for adjusting the position of the liquid inlet in the vertical direction; in the adjusting process, the liquid inlet can be in a state higher than the liquid outlet;
the liquid guiding tube is provided with an air bag structure, a valve is arranged between the air bag structure and the liquid outlet, and the valve is used for controlling the connection/disconnection of a pipeline between the liquid outlet and the air bag structure.
Furthermore, the catheter comprises a first hard tube, a hose and a second hard tube which are sequentially communicated, the hose can be bent, an opening of the first hard tube forms a liquid inlet, and an opening of the second hard tube forms a liquid outlet;
the lifting movable end of the lifting mechanism is connected with the first hard tube, and the air bag structure and the valve are arranged on the second hard tube.
Further, the liquid quantitative transfer device comprises a support, the lifting mechanism comprises a rack, a gear and a connecting piece, the rack is connected to the support in a sliding mode, and the gear is connected to the support in a rotating mode; the rack is vertically arranged, and the gear is meshed with the rack;
one end of the connecting piece is connected with the rack, and the other end of the connecting piece is connected with the first hard tube, so that when the gear rotates, the rack can drive the first hard tube to move vertically.
Furthermore, the lifting mechanism comprises a rocking handle connected with one side surface of the gear and used for driving the gear to rotate.
Furthermore, the side face of the gear is provided with a plurality of scale marks extending along the radial direction of the gear, and the included angle between any two adjacent scale marks is the same.
Further, the lifting mechanism comprises a stepping motor, and an output shaft of the stepping motor is connected with the gear and used for driving the gear to rotate.
Further, the connecting piece includes first clamping structure, first clamping structure is used for the centre gripping to be connected first hard tube, so that the connecting piece with first hard tube can dismantle the connection.
Furthermore, a second clamping structure is arranged on the support and used for clamping a second hard pipe, so that the support is detachably connected with the second hard pipe.
Furthermore, the upper end and the lower end of the rack are respectively provided with a guide connecting column, the support is provided with an upper limit ring and a lower limit ring along the vertical interval, the upper guide connecting column and the lower guide connecting column of the rack are respectively sleeved in the upper limit ring and the lower limit ring, the distance between the upper limit ring and the lower limit ring is greater than the length of the rack, and the upper limit ring and the lower limit ring are used for being abutted against the end surface of the rack so as to prevent the guide connecting columns from being separated from the upper limit ring and the lower limit ring.
Further, a supporting seat is connected to the support in a sliding manner and is used for supporting the measuring cup to be sampled; the supporting seat can move vertically;
be provided with the retaining member on the supporting seat, the retaining member is used for locking supporting seat and support, so that behind the retaining member locking, the supporting seat for the support is fixed.
The embodiment of the utility model provides a pair of liquid ration transfer device, liquid ration transfer device includes: the liquid guide pipe can lead out the liquid in the liquid-taken measuring cup; the liquid guide pipe comprises a liquid inlet and a liquid outlet, the lifting end of the lifting mechanism is connected with the liquid guide pipe and used for adjusting the position of the liquid inlet in the vertical direction, and in the adjusting process, the liquid inlet can be in a state higher than the liquid outlet; the liquid guiding tube is provided with an air bag structure, a valve is arranged between the air bag structure and the liquid outlet, and the valve is used for controlling the connection/disconnection of a pipeline between the liquid outlet and the air bag structure. The specific application method is as follows: the liquid inlet is placed below the liquid inlet by the liquid taking measuring cup, the height of the liquid inlet is adjusted by the lifting mechanism, the liquid inlet is adjusted to a proper height, the valve is closed, the air bag structure is extruded, after the air bag structure is loosened, the liquid can be sucked into the liquid guide pipe, the valve is opened, the liquid in the liquid guide pipe can flow out from the liquid outlet, the position of the liquid outlet is lower than that of the liquid inlet, therefore, the liquid can be sucked from the liquid inlet continuously due to siphoning, then the liquid flows out from the liquid outlet until the liquid level of the liquid in the sampling measuring cup is separated from the liquid inlet, the difference between the total volume of the solution in the sampling measuring cup and the volume represented by the scale aligned with the position of the liquid inlet is the volume of the liquid taken out quantitatively, therefore, the position of the liquid inlet is adjusted by the lifting mechanism, the solution.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a liquid quantitative transfer device provided in an embodiment of the present invention.
Icon: 110-a first rigid tube; 111-a liquid inlet; 120-a hose; 130-a second rigid tube; 131-a liquid outlet; 210-a rack; 211-a guide connection column; 212-upper confinement ring; 213-a lower limiting ring; 220-a gear; 230-a stepper motor; 300-balloon configuration; 400-a valve; 510-a support base; 520-locking screws; 600-sampled measuring cup.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
As shown in fig. 1, an embodiment of the present invention provides a liquid quantitative transfer device, which includes: the liquid guide pipe can lead out the liquid in the liquid-taken measuring cup; the liquid guide tube comprises a liquid inlet 111 and a liquid outlet 131, the lifting end of the lifting mechanism is connected with the liquid guide tube and is used for adjusting the position of the liquid inlet 111 in the vertical direction, and in the adjusting process, the liquid inlet 111 can be in a state higher than the liquid outlet 131; the catheter is provided with a balloon structure 300, a valve 400 is arranged between the balloon structure 300 and the liquid outlet 131, and the valve 400 is used for controlling the connection/disconnection of a pipeline between the liquid outlet 131 and the balloon structure 300. The specific application method is as follows: firstly, a liquid-taking measuring cup is placed below the liquid inlet 111, then the height of the liquid inlet 111 is adjusted by using the lifting mechanism, after the liquid inlet 111 is adjusted to a proper height, the valve 400 is closed, the air bag structure 300 is squeezed, after the air bag structure 300 is loosened, liquid can be sucked into the liquid guide tube, then the valve 400 is opened, the liquid in the liquid guide tube can flow out from the liquid outlet 131, because the position of the liquid outlet 131 is lower than that of the liquid inlet 111, the liquid can be continuously sucked from the liquid inlet 111 due to siphoning action and then flows out from the liquid outlet 131 until the liquid level of the liquid in the sampling measuring cup 600 is separated from the liquid inlet 111, the difference between the total volume of the solution in the sampling measuring cup 600 and the volume represented by the scale aligned with the position of the liquid inlet 111 is the volume of the liquid which is taken out in a fixed amount, therefore, the position of the liquid inlet, the liquid is convenient to take.
The catheter comprises a first hard tube 110, a flexible tube 120 and a second hard tube 130 which are sequentially communicated, the flexible tube 120 can be bent, an opening of the first hard tube 110 forms a liquid inlet 111, and an opening of the second hard tube 130 forms a liquid outlet 131; the lifting movable end of the lifting mechanism is connected with the first hard tube 110, and the air bag structure 300 and the valve 400 are arranged on the second hard tube 130.
Specifically, the liquid quantitative transfer device includes a bracket, and the first hard tube 110, the flexible tube 120 and the second hard tube 130 are sequentially connected end to end, so that the catheter can be U-shaped, wherein the first hard tube 110 can be linear, and the second hard tube 130 can be L-shaped. When the liquid inlet device is used, the second hard tube 130 can be fixedly connected with the support, and the first hard tube 110 is driven by the lifting mechanism to adjust the height, so that the position of the liquid inlet 111 in the vertical direction can be adjusted. For example, 500ml of solution is in the sampled measuring cup 600, and to take out 300ml of solution, the lifting mechanism may be used to drive the first hard tube 110 to move up and down, so that the liquid inlet 111 on the first hard tube 110 is aligned with the 200ml scale of the sampled measuring cup 600, and thus the solution in the sampled measuring cup 600 may be sucked into the collecting cup through the air bag and the valve 400 until the liquid level in the sampled measuring cup 600 drops to the 200ml scale, the liquid inlet 111 is separated from the liquid level in the sampled measuring cup 600, and the liquid guiding process is automatically ended.
The liquid quantitative transfer device comprises a bracket, the lifting mechanism comprises a rack 210, a gear 220 and a connecting piece, the rack 210 is connected to the bracket in a sliding manner, and the gear 220 is connected to the bracket in a rotating manner; the rack 210 is vertically arranged, and the gear 220 is meshed with the rack 210; one end of the connecting member is connected to the rack 210, and the other end of the connecting member is connected to the first hard tube 110, so that when the gear 220 rotates, the rack 210 can drive the first hard tube 110 to move vertically.
The lifting mechanism comprises a rocking handle connected with one side surface of the gear 220 and is used for driving the gear 220 to rotate.
The lifting mechanism can be manually driven, and the rocking handle can be shaken to drive the gear 220 to rotate, so as to drive the rack 210 to move up and down.
The side of the gear 220 is provided with a plurality of scale marks extending along the radial direction, and the included angle between any two adjacent scale marks is the same.
The side of the gear 220 is provided with scale marks, a certain point on the bracket is taken as a reference point, when the gear 220 rotates for a certain angle, the scale marks on the side of the gear 220 can be aligned with the reference point, so that the rotating angle of the gear 220 can be visually observed, for example, the number of the scale marks on the side of the gear 220 is 4, the included angle between two adjacent scale marks is 90 degrees, a user can easily know the rotating angle of the gear 220 through the scale marks and the reference point, and the meshing connection relationship between the gear 220 and the rack 210 is fixed, so that after the gear 220 rotates, the ascending or descending length of the rack 210 can be easily obtained. For example, if the gear 220 is rotated clockwise by 90 degrees, the rack 210 may be raised by 5cm, and then when the user rotates the gear 220 clockwise by 180 degrees, the rack 210 is raised by 10 cm.
The lifting mechanism comprises a stepping motor 230, and an output shaft of the stepping motor 230 is connected with the gear 220 and used for driving the gear 220 to rotate.
The lifting mechanism can also be electric, the gear 220 is driven to rotate by the stepping motor 230, the stepping motor 230 can accurately output torque, so that the rotating angle of the gear 220 is controlled, and because the connection relation of the stepping motor 230, the gear 220 and the rack 210 is fixed, the length value of the vertical movement of the rack 210 can be calculated by the rotating angle of the output shaft of the stepping motor 230, and the quantitative adjustment of the lifting position of the first hard tube 110 can be realized by the prior art.
The connecting piece comprises a first clamping structure, and the first clamping structure is used for clamping and connecting the first hard tube 110, so that the connecting piece is detachably connected with the first hard tube 110.
The first clamping structure may be a clamp, the tail end of which is connected to the rack 210, and the head end of which can clamp the first hard tube 110. When the device is used, the first hard tube 110 can be clamped and fixed by the first clamping structure, and when the device needs to be stored or the first hard tube 110 needs to be cleaned, the first hard tube 110 can be taken down from the first clamping structure.
The bracket is provided with a second clamping structure, and the second clamping structure is used for clamping a second hard tube 130, so that the bracket is detachably connected with the second hard tube 130.
The second clamping structure can be a clamp, and the second hard tube 130 can be detachably connected to the support in a movable connection mode, so that the guide tube is convenient to store.
The upper end and the lower end of the rack 210 are respectively provided with a guide connecting column 211, the bracket is provided with an upper limiting ring 212 and a lower limiting ring 213 at intervals along the vertical direction, the upper guide connecting column 211 and the lower guide connecting column 211 of the rack 210 are respectively sleeved in the upper limiting ring 212 and the lower limiting ring 213, the distance between the upper limiting ring 212 and the lower limiting ring 213 is greater than the length of the rack 210, and the upper limiting ring 212 and the lower limiting ring 213 are used for being abutted against the end surface of the rack 210 so as to prevent the guide connecting column 211 from being separated from the upper limiting ring 212 and the lower limiting ring 213.
In order to avoid the separation of the rack 210 from the gear 220 and limit the maximum displacement of the rack 210, in this embodiment, guide connection posts 211 are disposed at the upper and lower ends of the rack 210, and an upper limit ring and a lower limit ring are disposed on the bracket, the thickness of the rack 210 is greater than the inner diameters of the upper limit ring 212 and the lower limit ring 213, and the upper limit ring and the lower limit ring are used for preventing the rack 210 from moving excessively.
A supporting seat 510 is slidably connected to the bracket, and the supporting seat 510 is used for supporting a measuring cup to be sampled; the support base 510 can move vertically; the supporting seat 510 is provided with a locking member, and the locking member is used for locking the supporting seat 510 and the bracket, so that after the locking member is locked, the supporting seat 510 is fixed relative to the bracket.
Because the liquid inlet 111 is higher than the liquid outlet 131 to realize the siphon phenomenon, when the liquid taking amount is larger, the sampled measuring cup 600 can be placed on the supporting seat 510, so that the liquid inlet 111 can extend into the deeper position of the sampled measuring cup. The supporting seat 510 and the bracket can be matched by a guide rail and a sliding groove, and the locking member can be a locking screw 520 screwed on the supporting seat 510, and the locking screw 520 is abutted to the bracket after being locked.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A quantitative liquid transfer device, comprising: a catheter and a lifting mechanism;
the liquid guide pipe comprises a liquid inlet (111) and a liquid outlet (131), and the lifting end of the lifting mechanism is connected with the liquid guide pipe and used for adjusting the position of the liquid inlet (111) in the vertical direction; and in the adjusting process, the liquid inlet (111) can be in a state higher than the liquid outlet (131);
the catheter is provided with an air bag structure (300), a valve (400) is arranged between the air bag structure (300) and the liquid outlet (131), and the valve (400) is used for controlling the connection/disconnection of a pipeline between the liquid outlet (131) and the air bag structure (300).
2. The quantitative liquid transfer device according to claim 1, wherein the liquid guiding tube comprises a first hard tube (110), a flexible tube (120) and a second hard tube (130) which are communicated in sequence, and the flexible tube (120) is bendable, the opening of the first hard tube (110) forms the liquid inlet (111), and the opening of the second hard tube (130) forms the liquid outlet (131);
the lifting movable end of the lifting mechanism is connected with the first hard tube (110), and the air bag structure (300) and the valve (400) are arranged on the second hard tube (130).
3. The quantitative liquid transfer device according to claim 2, wherein the quantitative liquid transfer device comprises a bracket, the lifting mechanism comprises a rack (210), a gear (220) and a connecting member, the rack (210) is slidably connected to the bracket, and the gear (220) is rotatably connected to the bracket; the rack (210) is vertically arranged, and the gear (220) is meshed with the rack (210);
one end of the connecting piece is connected with the rack (210), and the other end of the connecting piece is connected with the first hard tube (110), so that when the gear (220) rotates, the rack (210) can drive the first hard tube (110) to move vertically.
4. The quantitative liquid transfer device according to claim 3, wherein the lifting mechanism comprises a rocking handle connected to one side of the gear (220) for driving the gear (220) to rotate.
5. The quantitative liquid transfer device according to claim 4, wherein the gear (220) is provided with a plurality of graduation marks extending along the radial direction thereof, and the included angle between any two adjacent graduation marks is the same.
6. The quantitative liquid transfer device according to claim 3, wherein the lifting mechanism comprises a stepping motor (230), and an output shaft of the stepping motor (230) is connected with the gear (220) for driving the gear (220) to rotate.
7. The device for quantitative liquid transfer according to claim 3, wherein the connector comprises a first clamping structure for clamping and connecting the first hard tube (110) so that the connector is detachably connected with the first hard tube (110).
8. The device for quantitative liquid transfer according to claim 7, wherein the bracket is provided with a second clamping structure for clamping a second hard tube (130) so as to detachably connect the bracket with the second hard tube (130).
9. The quantitative liquid transfer device according to claim 3, wherein the upper end and the lower end of the rack (210) are respectively provided with a guide connecting column (211), the bracket is provided with an upper limit ring (212) and a lower limit ring (213) at intervals along the vertical direction, the upper guide connecting column (211) and the lower guide connecting column (211) of the rack (210) are respectively sleeved in the upper limit ring (212) and the lower limit ring (213), the distance between the upper limit ring (212) and the lower limit ring (213) is greater than the length of the rack (210), and the upper limit ring (212) and the lower limit ring (213) are used for being abutted against the end surface of the rack (210) to prevent the guide connecting columns (211) from being separated from the upper limit ring (212) and the lower limit ring (213).
10. The device for the quantitative transfer of liquid according to claim 3, wherein a support base (510) is slidably connected to the holder, the support base (510) being used for supporting a measuring cup to be sampled; the supporting seat (510) can move along the vertical direction;
be provided with the retaining member on supporting seat (510), the retaining member is used for locking supporting seat (510) and support, so that retaining member locking back, supporting seat (510) for the support is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921728219.8U CN210906217U (en) | 2019-10-15 | 2019-10-15 | Liquid quantitative transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921728219.8U CN210906217U (en) | 2019-10-15 | 2019-10-15 | Liquid quantitative transfer device |
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| Publication Number | Publication Date |
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| CN210906217U true CN210906217U (en) | 2020-07-03 |
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| CN201921728219.8U Active CN210906217U (en) | 2019-10-15 | 2019-10-15 | Liquid quantitative transfer device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI809569B (en) * | 2021-07-16 | 2023-07-21 | 大陸商江蘇魯汶儀器有限公司 | Online sampler and contamination analysis system |
-
2019
- 2019-10-15 CN CN201921728219.8U patent/CN210906217U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI809569B (en) * | 2021-07-16 | 2023-07-21 | 大陸商江蘇魯汶儀器有限公司 | Online sampler and contamination analysis system |
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