CN112255048A - Inspection sampling device for basic medicine - Google Patents

Inspection sampling device for basic medicine Download PDF

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Publication number
CN112255048A
CN112255048A CN202011287591.7A CN202011287591A CN112255048A CN 112255048 A CN112255048 A CN 112255048A CN 202011287591 A CN202011287591 A CN 202011287591A CN 112255048 A CN112255048 A CN 112255048A
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China
Prior art keywords
sampling
tube
needle
air
pipe
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Granted
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CN202011287591.7A
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Chinese (zh)
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CN112255048B (en
Inventor
栾海艳
周建基
谭晶
单洪超
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Jiamusi University
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Jiamusi University
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Publication of CN112255048A publication Critical patent/CN112255048A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14Suction devices, e.g. pumps; Ejector devices

Abstract

The invention discloses a basic medical inspection sampling device, which comprises a sampling box and a handle arranged above the sampling box, wherein an air exhaust control device is arranged in the sampling box; the sampling tube can be fixed on the sampling tube fixing seat by controlling the air exhaust of the miniature air exhaust pump through the electromagnetic valve, negative pressure can be generated in the sampling tube to perform sampling work, the sampling needle can be adjusted to control the drawing and inserting of the sampling needle, the sealing of a sampling sample can be ensured by the drawing and inserting of the sampling needle, and the cleaning of the sampling tube is facilitated by the use of the disposable rubber top cover and the disposable rubber bottom cap.

Description

Inspection sampling device for basic medicine
Technical Field
The invention relates to the field of medical related equipment, in particular to a basic medical inspection sampling device.
Background
Basic medicine (BMS for English abbreviation), belongs to the basic discipline, is the basis of modern medicine. Basic medicine is the natural science that studies the nature and regularity of human life and disease phenomena. The nature and law of the human health and disease studied by it are followed by all other applied medicine. Medical testing is a science of microbiology, immunology, biochemistry, genetics, hematology, biophysics, cytology, etc., of materials taken from the human body, providing information for the prevention, diagnosis, treatment of human diseases and assessment of human health.
In the foundation medicine detects, often need carry out the sampling inspection to liquid to need examine the sampling operation, and common inspection sampling device need carry out a lot of samplings to same kind of liquid, and this kind of mode not only needs a lot of operations, is difficult to control the accurate degree of many samplings moreover, and wastes time and energy when wasing.
Disclosure of Invention
The invention aims to solve the problems and designs a checking and sampling device for basic medicine.
In order to achieve the purpose, the invention adopts the following technical scheme:
a testing and sampling device for basic medicine comprises a sampling box and a handle arranged above the sampling box, wherein a controller is arranged above the outer side surface of the sampling box, a storage battery device is arranged in the sampling box, an air exhaust control device is arranged in the sampling box, a sampling tube fixing seat device is arranged on the lower surface of the sampling box, a portable sampling tube device is arranged on the sampling tube fixing seat device, and an adjustable sampling needle device is arranged on the portable sampling tube device;
the sampling tube fixing seat device comprises a plurality of sampling tube fixing seats arranged on the lower surface of the sampling box, the sampling tube fixing seats are uniformly distributed on the lower surface of the sampling box, a sampling air exhaust branch pipe is arranged at the center of the upper surface of the sampling tube fixing seat, a sampling electromagnetic valve is arranged on the sampling air exhaust branch pipe, a sealing sleeve is arranged at the center of the upper surface of the inner part of the sampling tube fixing seat, an annular sealing cushion is arranged at the upper end of the inner part of the sealing sleeve, an annular tooth-shaped sealing cushion is arranged on the inner side surface of the sealing sleeve and is in movable contact with the annular sealing cushion, an annular piston I is arranged on the inner side surface of the sampling tube fixing seat, the upper surface of the annular piston I is fixedly connected with the sealing sleeve, four sealing air exhaust short tubes are arranged on the annular piston I, the sampling device comprises an annular piston I, a sampling needle fixing seat, a sampling needle ring-shaped pipe, a sampling needle short pipe, a sampling needle extraction long pipe, a sampling needle extraction branch pipe, a sampling needle ring-shaped pipe, a sampling needle extraction long pipe, a sampling needle short pipe, a sampling needle extraction long pipe, a sampling needle extraction short pipe, a sampling needle extraction long pipe, a;
the portable sampling tube device comprises a sampling tube, the annular piston is sleeved on the sampling tube, the first annular piston is connected with the sampling tube in a sliding way, the annular toothed sealing cushion is sleeved on the sampling tube, a second annular piston is arranged above the outer side surface of the sampling tube and is connected with the inner side surface of the sampling tube fixing seat in a sliding way, two sampling needle connecting pipes are arranged on the annular piston II and are positioned at two sides of the sampling tube, the sampling needle connecting pipe is connected with the sampling pipe through a connecting pipe seat, the sampling needle air-extracting long pipe is inserted into the sampling needle connecting pipe, the lower end of the outer surface of the sampling needle connecting pipe is provided with a conical sealing cushion, the upper end of the sampling tube is movably provided with a disposable rubber top cover, an anti-reflux air suction opening is formed in the disposable rubber top cover, and a disposable rubber bottom cap is movably mounted at the lower end of the sampling tube.
Furthermore, the adjustable sampling needle device comprises a sampling needle adjusting cylinder, a compression spring is installed at the upper end inside the sampling needle adjusting cylinder, an adjusting piston is installed at the lower end of the compression spring, the adjusting piston is slidably connected with the sampling needle adjusting cylinder, a sampling needle is installed at the center of the adjusting piston, the adjusting piston is located above the center of the sampling needle, a sampling needle opening is formed in the center of the upper surface and the lower surface of the sampling needle adjusting cylinder, a sampling needle sealing and wiping cushion is installed in the sampling needle opening, the sampling needle sealing and wiping cushion is sleeved on the sampling needle, the sampling needle sealing and wiping cushion is slidably connected with the sampling needle, L-shaped exhaust tubes are installed above the side surfaces of the two sides of the sampling needle adjusting cylinder, an exhaust tube seat is installed on the L-shaped exhaust tubes, a conical butt joint groove is formed in the upper surface of the exhaust tube seat, and the conical butt joint groove is communicated with the L-shaped, the conical butt-joint groove is movably connected with the sampling needle connecting pipe, and the suction pipe seat is movably provided with a detachable pipe seat cap.
Further, the air exhaust control device comprises a micro air exhaust pump arranged above the inner part of the sampling box, an air exhaust sleeve is arranged at the air exhaust end of the micro air exhaust pump, a release pipe is arranged on the air exhaust sleeve, an air inlet electromagnetic valve is arranged on the release pipe, a sampling air exhaust pipe, a sealing air exhaust pipe and a sampling needle air exhaust pipe are arranged in the sampling box, the sampling air exhaust pipe, the sealing air exhaust pipe and the sampling needle air exhaust pipe are distributed below the inner part of the sampling box in parallel, the sampling air exhaust pipe is fixedly connected with a sampling air exhaust branch pipe, the sealing air exhaust pipe is fixedly connected with the sealing air exhaust branch pipe, the sampling needle air exhaust pipe is fixedly connected with the sampling needle air exhaust branch pipe, the sampling air exhaust pipe is fixedly connected with the air exhaust sleeve through a sampling short pipe, the sealing air exhaust pipe is connected with the air exhaust sleeve through a sealing short pipe, and, the sampling needle exhaust tube is connected with the exhaust sleeve through a short sampling needle pipe.
Furthermore, the storage battery device comprises a storage battery box installed on one side above the interior of the sampling box, and a storage battery pack is installed inside the storage battery box.
Furthermore, a sampling control button is arranged on the handle.
Further, the friction force that the sampling tube received is greater than the gravity of portable sampling tube device.
Further, the friction force between the conical butt-joint groove and the conical sealing cushion is larger than the total weight of the adjustable sampling needle device
Furthermore, the lower extreme of sample needle long tube of bleeding stretches out the sampling tube fixing base, the lower extreme of sample needle long tube of bleeding is the toper, butt joint sealing cushion is installed to sample needle long tube of bleeding outside surface below.
Furthermore, a sampling needle electromagnetic valve is arranged on the sampling needle air exhaust branch pipe.
Furthermore, a plurality of air holes which are uniformly distributed are formed in the lower surface of the sampling needle adjusting cylinder.
The inspection sampling device for the basic medicine manufactured by the technical scheme of the invention has the following beneficial effects:
the sampling device controls the air exhaust of the miniature air exhaust pump through the electromagnetic valve, so that the sampling tube can be stably fixed on the sampling tube fixing seat through the action of air pressure, and negative pressure can be generated in the sampling tube, thereby carrying out sampling work.
This sampling device passes through atmospheric pressure and compression spring's cooperation, makes the operation that the sampling needle inserted and took out on disposable rubber end cap to make the sample finish the back, the sample specimen guarantee is sealed, avoids sample specimen's leakage.
This sampling device is through the use of cap at the bottom of disposable rubber top cap and the disposable rubber, when can making the sampling tube repetitious usage, change top cap and end cap that can be simple quick to only wash the sampling tube, the effectual operation that has made things convenient for the staff saves staff's operating time.
Drawings
FIG. 1 is a schematic structural view of a basic medical test sampling device according to the present invention;
FIG. 2 is a schematic view of the coupon holder assembly of the present invention;
FIG. 3 is a schematic view of the sealing sleeve of the present invention;
FIG. 4 is a bottom view of the coupon holder assembly of the present invention;
FIG. 5 is a schematic view of the portable coupon device of the present invention;
FIG. 6 is a schematic view of a disposable rubber overcap according to the present invention;
FIG. 7 is a schematic view of an adjustable sampling needle assembly according to the present invention;
FIG. 8 is a schematic view of a removable cartridge cap according to the present invention;
FIG. 9 is a schematic view of the assembly of the coupon of the present invention;
in the figure, 1, a sampling box; 2. a handle; 3. a controller; 4. a sampling tube fixing seat; 5. sampling an air exhaust branch pipe; 6. a sampling solenoid valve; 7. sealing the sleeve; 8. an annular sealing cushion; 9. an annular toothed sealing cushion; 10. a first annular piston; 11. sealing the short exhaust pipe; 12. a sampling needle air-extracting long tube; 13. sealing the annular tube; 14. a sampling needle ring tube; 15. a sampling needle air suction branch pipe; 16. sealing the air exhaust branch pipe; 17. a sampling tube; 18. a second annular piston; 19. a sampling needle connecting tube; 20. connecting a pipe seat; 21. a tapered sealing cushion; 22. a disposable rubber top cover; 23. an anti-reflux air extraction opening; 24. a disposable rubber bottom cap; 25. a sampling needle adjusting cylinder; 26. a compression spring; 27. an adjusting piston; 28. a sampling needle; 29. a sampling needle opening; 30. the sampling needle is sealed and wipes the soft cushion; 31. an L-shaped exhaust pipe; 32. an air exhaust pipe seat; 33. a conical butt-joint groove; 34. a detachable pipe seat cap; 35. a micro air pump; 36. an air extraction sleeve; 37. a release tube; 38. an air inlet solenoid valve; 39. sampling and air extracting pipes; 40. sealing the exhaust pipe; 41. a sampling needle exhaust tube; 42. a short sampling pipe; 43. sealing the short pipe; 44. sealing the electromagnetic valve; 45. a short sampling needle pipe; 46. a battery case; 47. a battery pack; 48. a sampling control button; 49. butt-joint sealing soft mats; 50. a sampling needle solenoid valve; 51. and (4) air holes.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, as shown in FIGS. 1-9:
in this device, storage battery 47 charges through being connected with outside charging device, storage battery 47 and miniature aspiration pump 35, sample solenoid valve 6, sealed solenoid valve 44, sample needle solenoid valve 50 electric connection supplies power, controller 3's model is JMDM-PLC8DI4 DOMR's single chip microcomputer controller, controller 3's control signal output part pass through the relay respectively with miniature aspiration pump 35, sample solenoid valve 6, sealed solenoid valve 44, sample needle solenoid valve 50 electric connection, controller 3's signal receiving terminal and sample control button electric connection, thereby control the operation of whole device.
The invention of the scheme is characterized in that the sampling tube fixing seat device is structurally designed, and the sampling tube fixing seat device is combined with an attached drawing 1, an attached drawing 2, an attached drawing 3, an attached drawing 4 and an attached drawing 9, the sampling tube fixing seat device comprises a plurality of sampling tube fixing seats 4 arranged on the lower surface of a sampling box 1, the sampling tube fixing seats 4 are uniformly distributed on the lower surface of the sampling box 1, a sampling air exhaust branch pipe 5 is arranged at the center of the upper surface of the sampling tube fixing seat 4, a sampling electromagnetic valve 6 is arranged on the sampling air exhaust branch pipe 5, a sealing sleeve 7 is arranged at the center of the upper surface in the sampling tube fixing seat 4, an annular sealing cushion 8 is arranged at the upper end in the sealing sleeve 7, an annular toothed sealing cushion 9 is arranged on the inner side surface of the sealing sleeve 7, the annular toothed sealing cushion 9 is movably contacted with the annular sealing cushion 8, four sealed short pumping pipes 11 are installed on a first annular piston 10, the sealed short pumping pipes 11 are uniformly distributed on the first annular piston 10, two long sampling needle pumping pipes 12 are installed on the first annular piston 10, the long sampling needle pumping pipes 12 are uniformly distributed on the first annular piston 10, a sealing ring pipe 13 and a sampling needle ring pipe 14 are arranged above the inner part of a sampling tube fixing seat 4, the sealing ring pipe 13 is fixedly connected with the sealed short pumping pipes 11, the sampling needle ring pipe 14 is fixedly connected with the long sampling needle pumping pipes 12, a sampling needle pumping branch pipe 15 and a sealing pumping branch pipe 16 are installed on the upper surface of the sampling tube fixing seat 4, the sampling needle pumping branch pipe 15 is fixedly connected with the sampling needle ring pipe 14, and the sealing pumping branch pipe 16 is fixedly connected with the sealing ring pipe 13; through the combination collocation of the sealed cushion of annular seal cushion 8 and the sealed cushion 9 of annular cusp, thereby make the sampling tube 17 can seal with seal tube 7, thereby guarantee going on smoothly of sample work, draw long tube 12 through the sampling needle and stretch out sampling tube fixing base 4, thereby can be quick when making the sampling tube installation fix a position, through sealed branch pipe 16 of bleeding, sealing ring venturi tube 13 and sealed nozzle stub 11 of bleeding, can form the negative pressure through the extraction air, thereby make the sampling tube 17 fixed to on the sampling tube fixing base 3.
The invention of this scheme lies in the structural design of the portable sampling tube device, combine fig. 1, fig. 5, fig. 6 and fig. 9, the portable sampling tube device includes the sampling tube 17, the first annular piston 10 is fitted on the sampling tube 17, the first annular piston 10 is connected with the sampling tube 17 slidably, the annular dentate seal cushion 9 is fitted on the sampling tube 17, the annular piston second 18 is installed above the surface of the outside of the sampling tube 17, the annular piston second 18 is connected with the surface of the inside of the sampling tube fixing base 4 slidably, two sampling needle connecting pipes 19 are installed on the annular piston second 18, two sampling needle connecting pipes 19 are located at both sides of the sampling tube 17, connect between sampling needle connecting pipe 19 and sampling tube 17 through the connecting pipe seat 20, the sampling needle long pipe 12 is inserted into the sampling needle connecting pipe 19, the outside surface lower extreme of the sampling needle connecting pipe 19 is installed with the conical seal cushion 21, the upper end movable mounting of the sampling tube 17 has, the disposable rubber top cover 22 is internally provided with an anti-reflux extraction opening 23, the lower end of the sampling tube 17 is movably provided with a disposable rubber bottom cap 24, the lower end of the sampling needle extraction branch tube 15 extends out of the sampling tube fixing seat 4, the lower end of the sampling needle extraction branch tube 15 is conical, and a butt-joint sealing cushion 51 is arranged below the outer side surface of the sampling needle extraction branch tube 15; through the setting of sampling needle connecting pipe 19, fix a position when installing sampling tube 17 on the one hand, on the other hand can regard as the air current extraction pipeline when sampling needle 28 adjusts again, simultaneously through the setting of butt joint sealing cushion 51, can make sampling needle connecting pipe 19 and sampling needle bleed and seal between long tube 12, thereby avoid influencing the use of device because of the gas leakage problem, through the setting of disposable rubber top cap 22 and disposable rubber end cap 24, make sampling tube 17 can be convenient for wash, simultaneously when repetitious usage sampling tube 17, can quick replacement disposable rubber top cap 22 and disposable rubber end cap 24, thereby make things convenient for staff's operation, reduce the waste of material.
The invention of this scheme lies in the structural design of the adjustable sampling needle device, combine figure 1, figure 7, figure 8 and figure 9, the adjustable sampling needle device includes the sampling needle and adjust the tube 25, the compression spring 26 is installed on the internal upper end of the sampling needle and adjust the tube 25, the lower end of the compression spring 26 is installed and adjusted the piston 27, adjust the piston 27 and adjust the tube 25 and slidably connect with the sampling needle, adjust the centre department of the piston 27 and install the sampling needle 28, adjust the piston 27 and locate above the centre department of the sampling needle 28, the centre department of the upper and lower surfaces of the sampling needle and adjust the tube 25 opens and has sampling needle mouth 29, install the sealed wiping cushion 30 of the sampling needle in the sampling needle mouth 29, the sealed wiping cushion 30 of the sampling needle is fitted on the sampling needle 28, the sealed wiping cushion 30 of the sampling needle is slidably connected with the sampling needle 28, install L-type exhaust tube 31 above the side surface of the sampling needle and adjusting, the upper surface of the extraction tube seat 32 is provided with a conical butt joint groove 33, the conical butt joint groove 33 is communicated with the L-shaped extraction tube 31, the conical butt joint groove 33 is movably connected with the sampling needle connecting tube 19, and a detachable tube seat cap 34 is movably arranged on the extraction tube seat 32; the sampling needle 28 is controlled to stretch and contract by matching the negative pressure generated by air suction of the L-shaped air suction pipe 31 and the compression spring, so that the sampling needle 28 can be inserted into and drawn out of the disposable rubber bottom cap 24, and meanwhile, the sampling needle 28 can be cleaned, the cleaning time of the sampling needle 28 is saved, and the sampling needle can be used for multiple times.
The creation point of the scheme lies in the structural design of the air extraction control device, and with reference to figure 1, the air extraction control device comprises a sampling box 1, a micro air extraction pump 35 is arranged above the inner part of the sampling box 1, an air extraction sleeve 36 is arranged at the air extraction end of the micro air extraction pump 35, a release pipe 37 is arranged on the air extraction sleeve 36, an air inlet electromagnetic valve 38 is arranged on the release pipe 37, a sampling air extraction pipe 39, a sealing air extraction pipe 40 and a sampling needle air extraction pipe 41 are arranged in the sampling box 1, the sampling air extraction pipe 39, the sealing air extraction pipe 40 and the sampling needle air extraction pipe 41 are distributed below the inner part of the sampling box 1 in parallel, the sampling air extraction pipe 39 is fixedly connected with a sampling air extraction branch pipe 5, the sealing air extraction pipe 40 is fixedly connected with a sealing air extraction branch pipe 16, the sampling needle air extraction pipe 41 is fixedly connected with a sampling needle air extraction branch pipe 15, the sampling air extraction pipe 39 is, the sealing short pipe 43 is provided with a sealing electromagnetic valve 44, and the sampling needle exhaust tube 41 is connected with the exhaust sleeve 36 through a sampling needle short pipe 45; the utility model discloses a sampling device, work through miniature aspiration pump 35 can make the device bleed, and adjust the direction of bleeding through opening and close of sealed solenoid valve 44, can controlling means more fixed to the density of sampling tube 17, adjust the direction of bleeding through opening and close of sampling needle solenoid valve 50, can control the flexible of sampling needle 28, adjust the direction of bleeding through opening and close of sampling solenoid valve 6, can control sampling tube 17 and carry out going on of sample work, effectual operating procedure and the time of saving the staff, make things convenient for staff's use.
In this device, the frictional force that the sampling tube 17 received is greater than the gravity of portable sampling tube device, can make the sampling tube 17 can be quick install, also can avoid the problem that the automation of sampling tube 17 drops simultaneously, the circular cone formula is docked the frictional force between groove 33 and the sealed cushion 21 of toper and is greater than the gross weight of regulation formula sample needle device, can make the installation that regulation formula sample needle device can be quick on the sampling tube 17, also can avoid the automatic condition of droing of regulation formula sample needle device to take place simultaneously.
The working principle is as follows:
the storage battery pack 47 is charged, and when the device needs to be used after the charging is finished, the working personnel wear the disposable sterile gloves, and the sampling box 1, the sampling tube 17 and the sampling needle adjusting cylinder 25 which are arranged in the sterile box are taken out, and is placed on a sterile operating platform, at the moment, the working personnel manually open the packaging bags of the disposable rubber top cover 22 and the disposable rubber bottom cap 24 to take out the disposable rubber top cover 22 and the disposable rubber bottom cap 24, and the disposable rubber top cap 22 and the disposable rubber bottom cap 24 are respectively arranged at the top and the bottom of the sampling tube 17, at the moment, the worker takes off the detachable tube seat cap 34 arranged on the suction tube seat 32, and the sampling needle adjusting cylinder 25 is mounted on the sampling tube 17, the sampling needle connection tube 19 is inserted into the conical docking groove 33, the sampling needle connecting pipe 19 and the conical butt-joint groove 33 are sealed and fixed through a conical sealing soft cushion 21;
at this time, the worker inserts the sampling tube 17 into the sampling tube fixing seat 4 manually, during the insertion process, the worker inserts the long sampling needle extraction tube 12 into the sampling needle connecting tube 19 manually, and seals the long sampling needle extraction tube 12 and the sampling needle connecting tube 19 by abutting against the sealing cushion 51, the sampling tube 17 is inserted into the annular piston I10 along with the insertion of the sampling tube 17, so that the space between the annular piston I10 and the sampling tube 17 is sealed, then the annular piston II 18 contacts and seals with the inner surface of the sampling tube fixing seat 4 along with the insertion of the sampling tube 17, and the sampling tube 17 is inserted into the annular toothed sealing cushion 10, so that the annular toothed sealing cushion 10 seals the sampling tube 17, after the sampling tube 17 is completely inserted, at this time, the upper surface of the disposable rubber top cover 22 at the upper end of the sampling tube 17 contacts and seals with the annular sealing cushion 8, at this time, the worker can mount other sampling tubes 17 on the sampling box 1 one by one according to the above operation;
after the sampling tube 17 is installed, the operator controls the micro air pump 35 to start working through the controller, and opens the sealing solenoid valve 44, at this time, along with the working of the micro air pump 35, the micro air pump 35 starts to pump air, and the air between the first annular piston 10 and the second annular piston 18 enters the sealing air pumping short tube 10 through the air pumping of the micro air pump 35, then enters the sealing ring tube 13, then enters the sealing air pumping branch tube 16, then enters the sealing air pumping tube 40, then enters the air pumping sleeve 36 through the sealing short tube 43, and finally is pumped into the sampling box 1 through the micro air pump 35, and along with the continuous air pumping of the micro air pump 35, the air pressure between the first annular piston 10 and the second annular piston 18 is lower and lower, and the second annular piston 10 is pushed by the air pressure of the external air, so that the sampling tube 17 moves into the sampling tube fixing base 4, thereby adsorbing the sampling tube 17 into the sampling tube fixing seat 4, and simultaneously, through the adsorption force generated by air pressure, the disposable rubber top cover 22 on the sampling tube 17 can extrude the annular sealing cushion 8, thereby sealing the sampling tube 17 more tightly, and after the sampling tube 17 is fixed, the micro air pump 35 is controlled to stop working and the sealing electromagnetic valve 44 is closed;
at this moment, the worker can carry out sampling work, the worker moves the sampling box 1 to the sampling place by holding the sampling box 1 by hand, at this moment, the worker inserts the sampling needle 28 on the first sampling tube 17 into the sampling liquid according to the sequence of the sampling tubes 17, at this moment, the worker presses the sampling control button 48, at this moment, the controller controls the micro-air pump 35 to start working and controls the sampling electromagnetic valve 6 at the first sampling tube 17 to open, at this moment, the air in the sampling tube 17 enters the sampling air exhaust branch pipe 5 through the anti-backflow air exhaust hole 23 on the disposable rubber top cover 22, then enters the sampling air exhaust pipe 3 and enters the air exhaust sleeve pipe 36 through the sampling short pipe 42, then the air is discharged into the sampling box 1 along with the work of the micro-air pump 35, and along with the continuous extraction of the air in the sampling tube 17, the air pressure in the sampling tube 17 is lower and lower, when the air pressure in the sampling tube 17 reaches a certain degree, the sampling electromagnetic valve 6 is controlled to be closed;
at this time, the electromagnetic valve 50 of the sampling needle at the first sampling tube 17 is controlled to open, and with the operation of the micro air pump 35, the air inside the sampling needle adjusting cylinder 25 is pumped into the L-shaped air pumping tube 31, enters into the sampling needle connecting tube 19 through the air pumping tube seat 32, then enters into the long sampling needle air pumping tube 12, then enters into the sampling needle annular tube 14, then enters into the sampling needle air pumping branch tube 15, then enters into the sampling needle air pumping tube 41, and enters into the air pumping sleeve tube 36 through the short sampling needle tube 45, finally is pumped into the sampling box 1 through the micro air pump 35, and with the continuous pumping out of the air inside the sampling needle adjusting cylinder 25, simultaneously, due to the air holes 51 arranged on the lower surface of the sampling needle adjusting cylinder 25, the adjusting piston 27 is pushed by the external air to gradually move upwards, and the compression spring 26 is compressed, so that the sampling needle 28 starts to rise upwards and is inserted into the disposable rubber bottom cap 24 at the lower end of the sampling tube 17, when the sampling needle 28 rises to a certain degree, the sampling needle 28 penetrates through the disposable rubber bottom cap 24, so that the needle head of the sampling needle 28 enters the sampling tube 17;
after the sampling needle 28 is inserted into the sampling tube 17, the sampling liquid enters the sampling needle 28 under the action of external air pressure and enters the sampling tube 17 through the sampling needle 28, the air pressure inside the sampling tube 17 is gradually balanced with the external air pressure along with the continuous injection of the sampling liquid into the sampling tube 17, and the injection of the sampling liquid is stopped when the air pressure inside the sampling tube 17 is the same as the external air pressure;
after waiting for a certain time, the controller controls the micro air pump 35 to stop working, and simultaneously opens the air inlet solenoid valve 38 and the sampling needle solenoid valve 36 at the first sampling tube 17, the air in the sampling box 1 enters the air extraction sleeve 36 through the release tube 37, and the air is injected into the sampling needle adjusting cylinder 25 through the air flow channel formed by the air extraction sleeve 36, the sampling needle short tube 45, the sampling needle air extraction tube 41, the sampling needle air extraction branch tube 15, the sampling needle annular tube 14, the sampling needle air extraction long tube 12, the sampling needle connecting tube 1 and the L-shaped air extraction tube 31, so that the air pressure driving force applied to the adjusting piston 27 gradually disappears, and the adjusting piston 27 drives the sampling needle 28 to return to the original position by the elastic force of the compression spring 26, thereby the sampling needle 28 is drawn out from the disposable rubber bottom cap 24, thereby completing the sampling work;
at this time, the worker can perform the next sampling operation, and at this time, after the worker presses the sampling control button 48 according to the above operation, the controller controls the opening and closing of the sampling solenoid valve 6 and the sampling needle solenoid valve 50 at the next sampling tube 17 according to the above operation, and cooperates with the operation of the micro air pump 35 and the opening and closing of the sealing solenoid valve 44, so as to perform the sampling operation on the next sampling tube 17;
after all sampling work is finished, the worker controls the whole device to stop working, controls the air inlet electromagnetic valve 38 to be opened, simultaneously opens the sampling needle electromagnetic valve 50, takes the sampling needle adjusting cylinder 25 off the sampling cylinder 17 one by one manually, installs the detachable pipe seat cap 34 on the air suction pipe seat 32, then controls the sealing electromagnetic valve 44 to be opened, takes the sampling pipe 17 off one by one manually, and places the sampling pipe 17 on the containing frame;
at this moment, the worker can take the disposable rubber top cover 22 on the sampling tube 17 one by one manually, and the sampling sample in the sampling tube 17 is transferred to the corresponding device, after all operations are finished, the sampling work is completed at this moment, the worker takes the disposable rubber bottom cap 24 manually, the disposable rubber bottom cap 24 and the disposable rubber top cover 22 are put into the garbage can at this moment, finally, the sampling needle adjusting cylinder 25 and the sampling cylinder 17 are placed into the cleaning device for cleaning, and then the sampling needle adjusting cylinder 25, the sampling cylinder 17 and the sampling box 1 are placed into the sterilizing device for sterilizing.
In the device, because the air extraction work is more, an air pressure sensor can be arranged on the air extraction sleeve 36, so that the air pressure is detected by the air pressure sensor to control the start and stop of the air extraction work;
the technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims (10)

1. A basic medicine is with inspection sampling device, includes sampling case (1) and installs handle (2) above sampling case (1), install controller (3) above the surface of the outside of sampling case (1), the internal storage battery device that installs of sampling case (1), characterized by, the internal bleed control device that is equipped with of sampling case (1), be equipped with sampling tube fixing base device on the lower surface of sampling case (1), be equipped with portable sampling tube device on the sampling tube fixing base device, be equipped with regulation formula sample needle device on the portable sampling tube device;
the sampling tube fixing seat device comprises a plurality of sampling tube fixing seats (4) arranged on the lower surface of the sampling tube (1), the sampling tube fixing seats (4) are evenly distributed on the lower surface of the sampling tube (1), a sampling air exhaust branch pipe (5) is arranged at the center of the upper surface of the sampling tube fixing seats (4), a sampling electromagnetic valve (6) is arranged on the sampling air exhaust branch pipe (5), a sealing sleeve (7) is arranged at the center of the inner upper surface of the sampling tube fixing seats (4), an annular sealing cushion (8) is arranged at the upper end of the inner part of the sealing sleeve (7), an annular toothed sealing cushion (9) is arranged on the inner side surface of the sealing sleeve (7), the annular toothed sealing cushion (9) is in movable contact with the annular sealing cushion (8), and an annular piston (10) is arranged on the inner side surface of the sampling tube fixing seats, the upper surface and the sealing sleeve (7) fixed connection of annular piston (10), install four sealed short pipes (11) of bleeding on annular piston (10), sealed short pipe (11) evenly distributed of bleeding is on annular piston (10), install two sample needle exhaust long tubes (12) on annular piston (10), sample needle exhaust long tube (12) evenly distributed is on annular piston (10), be equipped with sealed annular pipe (13) and sample needle annular pipe (14) above sample tube fixing base (4) inside, sealed annular pipe (13) and sealed short pipe (11) fixed connection of bleeding, sample needle annular pipe (14) and sample needle exhaust long tube (12) fixed connection, surface mounting has sample needle exhaust branch pipe (15) and sealed exhaust branch pipe (16) on sample tube fixing base (4), the sampling needle air-extracting branch pipe (15) is fixedly connected with the sampling needle annular pipe (14), and the sealing air-extracting branch pipe (16) is fixedly connected with the sealing annular pipe (13);
the portable sampling tube device comprises a sampling tube (17), a ring-shaped piston (10) is sleeved on the sampling tube (17), a ring-shaped piston (10) is connected with the sampling tube (17) in a sliding manner, a ring-shaped toothed sealing cushion (9) is sleeved on the sampling tube (17), a ring-shaped piston (18) is installed above the outer side surface of the sampling tube (17), the ring-shaped piston (18) is connected with the inner side surface of a sampling tube fixing seat (4) in a sliding manner, two sampling needle connecting tubes (19) are installed on the ring-shaped piston (18), the two sampling needle connecting tubes (19) are located on two sides of the sampling tube (17), the sampling needle connecting tubes (19) and the sampling tube (17) are connected through a connecting tube seat (20), the sampling needle pumping long tube (12) is inserted into the sampling needle connecting tube (19), and a conical sealing cushion (21) is installed at the lower end of the outer side surface of the sampling needle connecting tube (19), the upper end movable mounting of sampling tube (17) has disposable rubber top cap (22), it has anti-reflux extraction opening (23) to open in disposable rubber top cap (22), sampling tube (17) lower extreme movable mounting has disposable rubber end cap (24).
2. The inspection and sampling device for the basic medicine according to claim 1, wherein the adjustable sampling needle device comprises the sampling needle adjusting cylinder (25), the sampling needle adjusting cylinder (25) is provided with a compression spring (26) at the upper end inside, the compression spring (26) is provided with an adjusting piston (27) at the lower end, the adjusting piston (27) is slidably connected with the sampling needle adjusting cylinder (25), the sampling needle (28) is arranged at the center of the adjusting piston (27), the adjusting piston (27) is arranged above the center of the sampling needle (28), the sampling needle adjusting cylinder (25) is provided with a sampling needle opening (29) at the center of the upper and lower surfaces, the sampling needle sealing and wiping cushion (30) is arranged in the sampling needle opening (29), the sampling needle sealing and wiping cushion (30) is sleeved on the sampling needle (28), the sampling needle sealing and wiping cushion (30) is slidably connected with the sampling needle (28), the utility model discloses a sampling probe, including sample needle adjusting cylinder (25), L type exhaust tube (31) are installed to sample needle adjusting cylinder (25) both sides side surface top, install on L type exhaust tube (31) and bleed tube seat (32), bleed tube seat (32) upper surface is opened there is circular cone formula butt joint groove (33), circular cone formula butt joint groove (33) are linked together with L type exhaust tube (31), circular cone formula butt joint groove (33) and sample needle connecting pipe (19) swing joint, movable mounting has removable pipe seat cap (34) on bleed tube seat (32).
3. The inspection and sampling device for the basic medicine according to claim 1, wherein the air-extracting control device comprises a micro air-extracting pump (35) installed above the inside of the sampling box (1), an air-extracting sleeve (36) installed at the air-extracting end of the micro air-extracting pump (35), a releasing pipe (37) installed on the air-extracting sleeve (36), an air-intake solenoid valve (38) installed on the releasing pipe (37), a sampling air-extracting pipe (39), a sealing air-extracting pipe (40) and a sampling needle air-extracting pipe (41) installed inside the sampling box (1), the sampling air-extracting pipe (39), the sealing air-extracting pipe (40) and the sampling needle air-extracting pipe (41) are distributed below the inside of the sampling box (1) in parallel, the sampling air-extracting pipe (39) is fixedly connected with the sampling air-extracting branch pipe (5), the sealing air-extracting pipe (40) is fixedly connected with the sealing air-extracting branch pipe (16), sampling needle exhaust tube (41) and sampling needle air exhaust branch pipe (15) fixed connection, through sample nozzle stub (42) fixed connection between sample exhaust tube (39) and air exhaust sleeve (36), be connected through sealed nozzle stub (43) between sealed exhaust tube (40) and air exhaust sleeve (36), install sealed solenoid valve (44) on sealed nozzle stub (44), be connected through sampling needle nozzle stub (45) between sampling needle exhaust tube (41) and air exhaust sleeve (36).
4. The inspection and sampling device for the basic medicine according to claim 1, characterized in that the storage battery device comprises a storage battery box (46) arranged at the upper side inside the sampling box (1), and a storage battery pack (47) arranged inside the storage battery box (46).
5. The basic medical test sampling device of claim 1, wherein the handle (2) is provided with a sampling control button (48).
6. A test sampling device for basic medicine according to claim 1, characterized in that the friction force to which the sampling tube (17) is subjected is greater than the weight force of the portable sampling tube device.
7. The basic medical examination and sampling device of claim 2, wherein the friction between the conical docking groove (33) and the conical sealing cushion (21) is greater than the total weight of the adjustable sampling needle device.
8. The inspection and sampling device for the basic medicine as claimed in claim 1, wherein the lower end of the long exhaust needle tube (12) extends out of the sampling tube fixing seat (4), the lower end of the long exhaust needle tube (12) is conical, and a butt sealing cushion (49) is installed below the outer side surface of the long exhaust needle tube (12).
9. The basic medical test sampling device of claim 1, wherein a sampling needle solenoid valve (50) is mounted on the sampling needle suction manifold (15).
10. The basic medical examination and sampling device as claimed in claim 2, wherein said sampling needle adjusting cylinder (25) is provided with a plurality of air holes (51) uniformly distributed on the lower surface thereof.
CN202011287591.7A 2020-11-17 2020-11-17 Inspection sampling device for basic medicine Active CN112255048B (en)

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CN110160834A (en) * 2019-05-24 2019-08-23 深圳市前海微升科学股份有限公司 A kind of method and device of micro quantitative determination sampling
CN110286006A (en) * 2019-06-04 2019-09-27 广西科技大学 A kind of air detection sampler
CN210646459U (en) * 2019-07-31 2020-06-02 李庆友 Medical science inspection micro sampler
CN211347545U (en) * 2019-11-26 2020-08-25 刘宓 Medical science clinical laboratory uses liquid sample collection system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU67680A1 (en) * 1972-05-29 1973-08-02
US4827775A (en) * 1987-07-17 1989-05-09 Gilbert Forrester Apparatus for extracting a sample
US20060196282A1 (en) * 2005-03-02 2006-09-07 Shimadzu Corporation Automatic sample introduction apparatus
US20110197687A1 (en) * 2010-02-16 2011-08-18 Nextteq, Llc Device for Fluid Sampling
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