CN204241339U - Sensor automatic lifting also adopts cold pin to accelerate the osmotic pressure pick-up unit of crystallization - Google Patents
Sensor automatic lifting also adopts cold pin to accelerate the osmotic pressure pick-up unit of crystallization Download PDFInfo
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- CN204241339U CN204241339U CN201420524567.4U CN201420524567U CN204241339U CN 204241339 U CN204241339 U CN 204241339U CN 201420524567 U CN201420524567 U CN 201420524567U CN 204241339 U CN204241339 U CN 204241339U
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Abstract
The utility model discloses a kind of sensor automatic lifting and adopt cold pin to accelerate the osmotic pressure pick-up unit of crystallization, its structure is: substrate is equipped with fixed mount, and elevating screw is assembled on fixed mount, and movable plate loads elevating screw.Movable plate is equipped with cold cave and sensor up and down respectively, and spindle motor drives leading screw to drive movable plate upper and lower displacement.Sensor and the corresponding placement in lower cold cave, photoelectrical coupler is by support installing on crank support, and crank support is fixed on movable plate, and cold pin motor is arranged on crank support.Crank is arranged on the axle head of cold pin motor, along crank circumference, anti-dazzling screen is housed.One end of crank connecting link is fixed on crank, and the other end is connected with cold pin, and cold pin is assembled in guiding mechanism, and the lower end of cold pin probes in cold cave.Adopt cold pin disturbance shorten the solution crystallization phase, sensor synchronization lifting make probe in detecting to temperature consistent with the time and the degree of depth entering sample hose, significantly improve accuracy and the repeatability of osmometry.
Description
Technical field
The utility model belongs to drug test equipment, and being specifically related to a kind of sensor can the drug sample pick-up unit of automatic lifting.
Background technology
Osmotic pressure detector is the instrumentation detected the osmotic pressure molar density of drug solution, is widely used in the control etc. of the exploitation of clinical, the new medicine of pharmaceutical industries, production and quality.At clinicing aspect, sometimes need to measure colloidoplasmatic osmotic pressure, reasonable supplement haemocyanin in time, alleviate tissue edema, alleviate the visceral organ injury because tissue edema causes.Current osmotic pressure detector adopts freeze point depression principle to measure osmotic pressure molar density mostly, and this kind equipment is made up of refrigeration system, thermosensitive probe (measuring electric current or potential difference (PD)) and metal probe (or oscillator) etc. usually.But sensor is manual in this detector, can not automatic lifting, the problem that it brings is, can not ensure the consistance of each sample detection.Time and the degree of depth that hand sensor is entering sample hose are inconsistent, and this instrument can not make sample hose contact reliably with cold cave inwall, and crystallization time is relatively long.Proposition of the present utility model, can eliminating error that hand-operated lifting brings, accelerate crystallization, can significantly improving accuracy and consistance to detecting sample volumetric molar concentration.
Summary of the invention
The purpose of this utility model is, provides a kind of sensor can automatic lifting adopt cold pin to accelerate the osmotic pressure pick-up unit of crystallization.
The technical scheme taked for realizing this object is: substrate is equipped with fixed mount, elevating screw is assembled on fixed mount, and movable plate loads elevating screw by internal thread hole, and elevating screw is connected with spindle motor by shaft coupling.Movable plate is separately installed with cold cave and sensor up and down, and spindle motor drives elevating screw to drive movable plate upper and lower displacement.Sensor is relative with lower cold cave, and photoelectrical coupler is by optocoupler support installing on crank support, and crank support is fixed on movable plate, and cold pin motor is arranged on crank support.Crank is arranged on the axle head of cold pin motor, and one end of crank connecting link is fixed on crank, and the other end is connected with cold pin, and cold pin is assembled in guiding mechanism, and the lower end of cold pin probes in cold cave.Along crank circumference, anti-dazzling screen is housed, anti-dazzling screen controls the start and stop of cold pin motor by shading light electric coupler.
Feature of the present utility model and beneficial effect are: adopt cold pin mechanical disturbance to shorten solution crystallization induction period, sensor synchronous automatic lifting, the temperature that sensor probe is detected is consistent with the time and the degree of depth entering sample hose, significantly improves accuracy and the repeatability of osmometry.
Accompanying drawing explanation
Fig. 1 is theory and structure front view of the present utility model.
Fig. 2 is the side view of Fig. 1.
Embodiment
Structure of the present utility model to be described further by embodiment below in conjunction with accompanying drawing.
Sensor automatic lifting also adopts cold pin to accelerate the osmotic pressure pick-up unit of crystallization, has substrate, fixed mount, elevating screw, movable plate, shaft coupling, spindle motor, cold pin motor, upper and lower cold cave, sensor, photoelectrical coupler, crank, crank connecting link, cold pin and anti-dazzling screen etc.Its structure composition is: substrate 1 is equipped with fixed mount 2, elevating screw 3 is assembled on fixed mount.Movable plate 4 loads elevating screw by internal thread hole, and elevating screw is connected with spindle motor 6 by shaft coupling 5.Movable plate is separately installed with cold cave 8 and sensor 9 up and down, and spindle motor drives elevating screw to drive movable plate upper and lower displacement.Sensor is arranged on crank support 13 with the corresponding placement in lower cold cave 10, photoelectrical coupler 11 by support 12, and crank support is fixed on movable plate, and cold pin motor 7 is arranged on crank support.Crank 14 is arranged on the axle head of cold pin motor, along crank circumference, anti-dazzling screen 18 is housed.One end of crank connecting link 15 is fixed on crank, and the other end is connected with cold pin 16, and cold pin is assembled in guiding mechanism 17, and the lower end of cold pin probes in cold cave.
When utilizing this device to carry out sample detection, start spindle motor and rotate, leading screw drives movable plate to decline, and after the sensor be fixed on movable plate enters lower cold cave, spindle motor stops operating.Sensor detects the temperature of sample in sample hose, when temperature drops to below crystallization point, starts cold pin electric machine rotation.Cold pin driven by motor crank rotates, and crank connecting link changes the circular motion of crank the rectilinear motion of guiding mechanism into, and the cold pin of guiding mechanism lower end probes into downwards in sample hose.Because liquid not necessarily freezes when arriving freezing point temperature, liquid has certain degree of supercooling, so the test of cold pin can provide an external disturbance, so just can make the rapid crystallization of sample.Crank revolves and turns around, and cold pin moves up and down once, when covering the luminotron in photoelectrical coupler when anti-dazzling screen, and the stop motion of cold pin motor.If the sample that detectable concentration is higher, cold pin needs motion repeatedly, and sensor now can detect (crystallization) temperature of sample repeatedly.After whole crystallization process terminates, spindle motor reverse rotation, drives on movable plate and moves, and is with dynamic sensor to rise from from lower cold cave simultaneously.Above-mentioned steps detects driver by one and can automatically complete.
Claims (2)
1. sensor automatic lifting adopt cold pin to accelerate the osmotic pressure pick-up unit of crystallization, has substrate, fixed mount, elevating screw, movable plate, shaft coupling, spindle motor, cold pin motor, upper and lower cold cave, sensor, photoelectrical coupler, crank, crank connecting link, cold pin, and anti-dazzling screen, it is characterized in that: substrate (1) is equipped with fixed mount (2), elevating screw (3) is assembled on fixed mount, movable plate (4) loads elevating screw by internal thread hole, elevating screw is connected with spindle motor (6) by shaft coupling (5), movable plate is separately installed with cold cave (8) and sensor (9) up and down, spindle motor drives elevating screw to drive movable plate upper and lower displacement, sensor and the corresponding placement of lower cold cave (10), photoelectrical coupler (11) is arranged on crank support (13) by support (12), crank support is fixed on movable plate, cold pin motor (7) is arranged on crank support, crank (14) is arranged on the axle head of cold pin motor, one end of crank connecting link (15) is fixed on crank, the other end is connected with cold pin (16), cold pin is assembled in guiding mechanism (17), the lower end of cold pin probes in cold cave.
2. adopt cold pin to accelerate the osmotic pressure pick-up unit of crystallization according to sensor automatic lifting according to claim 1, it is characterized in that, along described crank circumference, anti-dazzling screen (18) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524567.4U CN204241339U (en) | 2014-09-12 | 2014-09-12 | Sensor automatic lifting also adopts cold pin to accelerate the osmotic pressure pick-up unit of crystallization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524567.4U CN204241339U (en) | 2014-09-12 | 2014-09-12 | Sensor automatic lifting also adopts cold pin to accelerate the osmotic pressure pick-up unit of crystallization |
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| Publication Number | Publication Date |
|---|---|
| CN204241339U true CN204241339U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420524567.4U Active CN204241339U (en) | 2014-09-12 | 2014-09-12 | Sensor automatic lifting also adopts cold pin to accelerate the osmotic pressure pick-up unit of crystallization |
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| CN (1) | CN204241339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807729A (en) * | 2015-05-04 | 2015-07-29 | 河南师范大学 | Polymer osmotic pressure measurement device and use method thereof |
| CN113740209A (en) * | 2021-09-16 | 2021-12-03 | 哈尔滨工业大学（威海） | Device and method for simulating wetting behavior of plastic on metal surface under specific pressure |
-
2014
- 2014-09-12 CN CN201420524567.4U patent/CN204241339U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807729A (en) * | 2015-05-04 | 2015-07-29 | 河南师范大学 | Polymer osmotic pressure measurement device and use method thereof |
| CN104807729B (en) * | 2015-05-04 | 2017-12-29 | 河南师范大学 | A kind of polymer penetration pressure measuring device and its application method |
| CN113740209A (en) * | 2021-09-16 | 2021-12-03 | 哈尔滨工业大学（威海） | Device and method for simulating wetting behavior of plastic on metal surface under specific pressure |
| CN113740209B (en) * | 2021-09-16 | 2024-04-05 | 哈尔滨工业大学（威海） | Device and method for simulating wetting behavior of plastic on metal surface under specific pressure |
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