CN112033752A

CN112033752A - Automatic sampling and sample storing device for biological laboratory

Info

Publication number: CN112033752A
Application number: CN202010981526.8A
Authority: CN
Inventors: 邢军; 余霞; 杨雪; 张颖囡
Original assignee: SHANDONG DRUG AND FOOD VOCATIONAL COLLEGE
Current assignee: SHANDONG DRUG AND FOOD VOCATIONAL COLLEGE
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2020-12-04

Abstract

The invention discloses an automatic sampling and sample storing device for a biological laboratory, which comprises a base, wherein a storage cabinet is fixedly connected to the base, a storage cavity is formed in the storage cabinet, the inner wall of the storage cavity is rotatably connected with a lead screw, a driving motor is fixedly installed on the outer side wall of the storage cabinet, one end, penetrating through the storage cabinet, of the lead screw is fixedly connected to the output end of the driving motor, a communicating sleeve is connected to the lead screw in a threaded manner, a sampling tube is fixedly communicated with the communicating sleeve, and one end, far away from the communicating sleeve, of the sampling tube is fixedly connected with a sampling needle. The invention leads the piston rod to extend back and forth under the common elasticity of the spring and the elastic extension tube, when the piston rod extends outwards, the air pressure in the liquid storage cavity is reduced, the sample liquid is sucked in the liquid storage cavity, when the piston rod moves inwards, the air pressure in the liquid storage cavity is increased, the liquid is discharged, the liquid discharge amount of one circle of the cam is constant, the obtained sample amount is easier to control, and the operation accuracy is high.

Description

Automatic sampling and sample storing device for biological laboratory

Technical Field

The invention relates to the technical field of biological experiments, in particular to an automatic sampling and sample storing device for a biological laboratory.

Background

Biological experiments refer to the process of purposefully observing and researching the phenomena of organism structure and life activities which are not easy to observe under general conditions by a scientific method by using certain instruments, materials and medicines under specific environmental conditions. Biology is a natural science based on experiments. Through biological experiments, the system not only can help students to understand concepts and rules of biology and really learn basic knowledge of biology, but also is beneficial to inspiring active thinking of students, carrying out scientific method training and cultivating scientific quality of students.

According to the Chinese patent publication numbers: CN111389481A, an automatic sampling and sample storing device for a biological laboratory, comprising a shell, wherein the top end of the shell is fixedly connected with a controller, the inner side of the bottom end of the shell is fixedly connected with a storage battery, the inner side of the shell is fixedly connected with a slide rail, the inner side of the slide rail is slidably connected with a slide plate, the inner side of the slide plate is attached with a sampling test tube, the inner side of the left end of the shell is fixedly connected with a cleaning channel, the inner side of the left end of the shell is fixedly connected with an electromagnetic valve, the inner side of the left end of the shell is fixedly connected with an electric cooler and a fixed rod, and the top end of the fixed rod is fixedly connected with a fan. The accuracy of the next sample collection is ensured.

But the opening and the closing of pumping ware is difficult to accurate the accuse in actual operating condition, and the great difficult accuracy of pumping ware discharge capacity is packed into appointed sample volume with the test tube into, sometimes even fills up and spills the phenomenon of leaking, has increased staff's clearance burden.

Disclosure of Invention

The invention aims to solve the defects that the starting and stopping of a water pump in an actual working state are difficult to accurately control, the discharge capacity of the water pump is large, a test tube is difficult to accurately load in a specified sample amount, and sometimes the test tube is even filled with the sample and spills, so that the cleaning burden of workers is increased in the prior art, and provides an automatic sampling and sample storing device for a biological laboratory.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic sampling and sample storing device for a biological laboratory comprises a base, wherein a storage cabinet is fixedly connected onto the base, a storage cavity is formed in the storage cabinet, the inner wall of the storage cavity is rotatably connected with a lead screw, a driving motor is fixedly mounted on the outer side wall of the storage cabinet, one end of the lead screw, which penetrates through the storage cabinet, is fixedly connected onto the output end of the driving motor, a communicating sleeve is connected onto the lead screw in a threaded manner, a sampling pipe is fixedly communicated onto the communicating sleeve, a sampling needle is fixedly connected onto one end, away from the communicating sleeve, of the sampling pipe, a limiting mechanism is arranged on the communicating sleeve, a liquid storing cavity is formed in the communicating sleeve, the sampling pipe is communicated with the liquid storing cavity through a first check valve, a cam is arranged in the liquid storing cavity, a micro stepping motor is arranged on the outer wall of the communicating sleeve, and the output end of the micro stepping motor, the bottom side of the communication sleeve is connected with a dropper pipe through a second one-way valve, piston rods are symmetrically inserted into the two sides of the communication sleeve in a sliding mode, sealing rings are symmetrically arranged in the communication sleeve and matched with the piston rods, elastic mechanisms are connected onto the piston rods, guide rail platforms are symmetrically and fixedly connected to the inner wall of the storage cavity, sample platforms are arranged in the storage cavity, a plurality of sampling pipes are arranged on the sample platforms at equal intervals, a storage battery is arranged in the base, and a controller panel is arranged on the outer side wall of the storage cabinet.

Preferably, the elastic mechanism comprises an elastic telescopic pipe and a spring, the elastic telescopic pipe is fixedly connected to the communicating sleeve, one end of the piston rod is fixedly connected to the elastic telescopic pipe, one end of the spring is fixedly connected to the communicating sleeve, the other end of the spring is fixedly connected to the inner wall of the elastic telescopic pipe, and the spring is sleeved on the elastic telescopic pipe.

Preferably, the case is washd in the upside fixedly connected with disinfection of cabinet, the disinfection is washd the case and has been seted up and has been added the liquid mouth, be equipped with the sealing plug on adding the liquid mouth, one side that the case was washd in the disinfection is equipped with sampling tube disinfection interface, be equipped with the control valve on the sampling tube disinfection interface, the sampling tube cooperatees with sampling tube disinfection interface.

Preferably, the storage cabinet is fixedly connected with a placing table, the placing table is connected with a cover plate through a hinge, and a placing groove matched with the sampling needle is formed in the placing table.

Preferably, the sample platform is fixedly connected with a front baffle, the front baffle is fixedly connected with a handle, the storage cabinet is rotatably connected with a knob, the knob is connected with a stop lever through a fixedly connected manner, and the stop lever abuts against the front baffle.

Preferably, stop gear includes the gag lever post, the one end fixed connection of gag lever post is at the upside of intercommunication cover, the other end of gag lever post rotates and is connected with spacing wheel, spacing wheel supports on the inner wall in storage chamber.

Preferably, the sample table is symmetrically and rotatably connected with rollers through a rotating shaft, and the rollers are abutted to the guide rail table.

Preferably, a plurality of test tube grooves are arranged on the sample table at equal intervals, and a sponge pad is fixedly connected in each test tube groove.

Compared with the prior art, the invention has the beneficial effects that:

1. drive the lead screw through driving motor and rotate, spacing at gag lever post and spacing wheel down, thereby make the intercommunication cover move on the lead screw, when removing appointed sampling tube top, drive the cam through miniature step motor and rotate, thereby make the continuous extrusion of cam even the piston rod toward extending outward, and the piston rod makes a round trip to stretch out and draw back under the common elasticity of spring and elastic expansion pipe, when the piston rod is toward extending outward, the atmospheric pressure of deposit liquid intracavity reduces, deposit the liquid intracavity and begin to absorb sample liquid, when the piston rod is toward the internal movement, deposit liquid intracavity atmospheric pressure and increase, begin discharge liquid, the liquid discharge volume of cam every turn a week is invariable, the sample volume of acquireing is controlled more easily, operation accuracy is high.

2. Can be through rotating the knob when the sample need detect to transfer the shelves pole and rotate ninety degrees and make it no longer support preceding baffle, staff can stimulate the handle this moment, take out the sample platform under the linkage of preceding baffle, take out required sampling tube and detect.

3. Sample completion back portable crossing with the sampling needle insert sampling tube disinfection interface in, then open the control flap of sampling tube disinfection interface, let disinfection wash incasement disinfectant flows into the last liquid intracavity of depositing that flows in of sampling tube under hydraulic effect and disinfect cleanly, clean work completion back, can place into through placing the sampling needle and place the platform in, then cover the apron and avoid contacting with the air dust, the use of next of being convenient for.

Drawings

Fig. 1 is a schematic diagram of an internal structure of an automatic sampling and sample storing device for a biological laboratory according to the present invention;

fig. 2 is a schematic external structural diagram of an automatic sampling and sample storing device for a biological laboratory according to the present invention;

FIG. 3 is a schematic view of the state in which the communicating sleeve discharges the liquid;

fig. 4 is a schematic view showing a state in which the communication cover absorbs liquid.

In the figure: 1-a base, 2-a storage cabinet, 3-a placing table, 4-a cover plate, 5-a storage battery, 6-a driving motor, 7-a screw rod, 8-a communicating sleeve, 9-a limiting rod, 10-a sampling tube, 11-a sampling needle, 12-a disinfection and cleaning box, 13-a liquid adding port, 14-a sampling tube disinfection interface, 15-a sample table and 16-a sampling tube, 17-guide rail table, 18-spongy cushion, 19-roller, 20-controller panel, 21-first one-way valve, 22-liquid storage cavity, 23-cam, 24-elastic telescopic tube, 25-piston rod, 26-spring, 27-dropper tube, 28-sealing ring, 29-handle, 30-front baffle, 31-knob and 32-gear lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-4, an automatic sampling and sample storing device for a biological laboratory comprises a base 1, a storage cabinet 2 is fixedly connected to the base 1, a storage cavity is formed in the storage cabinet 2, the inner wall of the storage cavity is rotatably connected with a lead screw 7, a driving motor 6 is fixedly installed on the outer side wall of the storage cabinet 2, one end of the lead screw 7 penetrating through the storage cabinet 2 is fixedly connected to the output end of the driving motor 6, a communicating sleeve 8 is connected to the lead screw 7 through a thread, a sampling tube 10 is fixedly communicated to the communicating sleeve 8, one end of the sampling tube 10 far away from the communicating sleeve 8 is fixedly connected with a sampling needle 11, a disinfection cleaning box 12 is fixedly connected to the upper side of the storage cabinet 2, a liquid adding port 13 is formed in the disinfection cleaning box 12, a sealing plug is arranged on the liquid adding port 13, a sampling tube disinfection interface 14 is arranged on one side of the disinfection cleaning box 12, a control valve is, sample can move in the back is accomplished and the mistake is inserted sampling needle 11 in sampling tube disinfection interface 14, then open sampling tube disinfection interface 14's control valve, let disinfection liquid flow in sampling tube 10 under hydraulic effect in the disinfection washing case 12 finally flow in deposit the liquid chamber 22 in disinfect cleanly, fixedly connected with places platform 3 on the cabinet 2, it has apron 4 to place platform 3 through hinged joint, it is equipped with the standing groove with sampling needle 11 assorted on the platform 3 to place, cleaning work accomplishes the back, can place in the platform 3 through placing sampling needle 11, then cover apron 4 and avoid contacting with the air dust, be convenient for next use.

A limiting mechanism is arranged on the communication sleeve 8, the limiting mechanism comprises a limiting rod 9, one end of the limiting rod 9 is fixedly connected to the upper side of the communication sleeve 8, the other end of the limiting rod 9 is rotatably connected with a limiting wheel, the limiting wheel abuts against the inner wall of the storage cavity and rolls on the inner wall of the storage cavity through the limiting wheel, so that the communication sleeve 8 is limited, when the screw rod 7 rotates, the communication sleeve 8 horizontally moves on the screw rod 7, a liquid storage cavity 22 is formed in the communication sleeve 8, the sampling tube 10 is communicated with the liquid storage cavity 22 through a first one-way valve 21, a cam 23 is arranged in the liquid storage cavity 22, a micro stepping motor is arranged on the outer wall of the communication sleeve 8, the output end of the micro stepping motor extends into the liquid storage cavity 22 and is fixedly connected with the cam 23, a dropper tube 27 is connected to the bottom side of the communication sleeve 8 through a second one-way valve, piston rods 25 are symmetrically inserted in a sliding mode, and sealing rings 28 are symmetrically arranged in the communication sleeve 8, and the sealing rings 28 are matched with the piston rod 25.

The piston rod 25 is connected with an elastic mechanism, the elastic mechanism comprises an elastic extension tube 24 and a spring 26, the elastic extension tube 24 is fixedly connected to the communication sleeve 8, one end of the piston rod 25 is fixedly connected with the elastic extension tube 24, one end of the spring 26 is fixedly connected to the communication sleeve 8, the other end of the spring 26 is fixedly connected to the inner wall of the elastic extension tube 24, the spring 26 is sleeved on the elastic extension tube 24, when the cam 23 rotates, the cam 23 continuously extrudes the piston rod 25 to extend outwards, the piston rod 25 can extend back and forth under the common elasticity of the spring 26 and the elastic extension tube 24, the inner wall of the storage cavity is symmetrically and fixedly connected with a guide rail table 17, a sample table 15 is arranged in the storage cavity, a plurality of sampling tubes 16 are arranged on the sample table 15 at equal intervals, a plurality of test tube grooves are arranged on the sample table 15 at equal intervals, and a sponge pad 18 is fixedly, the sampling tube 16 is protected by the elasticity of the spongy cushion 18, the sample platform 15 is fixedly connected with a front baffle 30, the front baffle 30 is fixedly connected with a handle 29, the storage cabinet 2 is rotatably connected with a knob 31, the knob 31 is fixedly connected with a stop lever 32, the stop lever 32 is abutted against the front baffle 30, when a sample needs to be detected, the knob 31 can be rotated, thereby moving the shift lever 32 ninety degrees to no longer abut the front bezel 30, at which point the worker can pull on the handle 29, the sample platform 15 is drawn out under the connection action of the front baffle 30, the sample platform 15 is symmetrically and rotatably connected with the rollers 19 through the rotating shaft, the rollers 19 are abutted against the guide rail platform 17, when the sample platform 15 is drawn out, the roller 19 rolls on the guide rail table 17, the moving friction force is reduced, the sampling tube 16 to be sampled is taken out for detection, the storage battery 5 is arranged in the base 1, and the controller panel 20 is arranged on the outer side wall of the storage cabinet 2.

In the invention, the screw rod 7 is driven to rotate by the driving motor 6, the communicating sleeve 8 moves on the screw rod 7 under the limit of the limit rod 9 and the limit wheel, when the communicating sleeve moves above the appointed sampling tube 16, the cam 23 is driven to rotate by the micro stepping motor, so that the cam 23 continuously extrudes and is connected with the piston rod 25 to extend outwards, the piston rod 25 extends back and forth under the common elasticity of the spring 26 and the elastic extension tube 24, when the piston rod 25 extends outwards, the air pressure in the liquid storage cavity 22 is reduced, sample liquid begins to be sucked in the liquid storage cavity 22, when the piston rod 25 moves inwards, the air pressure in the liquid storage cavity 22 is increased, liquid begins to be discharged, the liquid discharge amount of each circle of the cam 23 is constant, the sample amount is easier to control, the operation accuracy is high, when a sample needs to be detected, the knob 31 can be rotated, thereby transfer gear lever 32 and rotate ninety degrees and make it no longer support preceding baffle 30, staff can stimulate handle 29 this moment, take out sample platform 15 under the linkage effect of preceding baffle 30, take out need sampling tube 16 and detect, can move in the back of the sample completion and insert sampling needle 11 in sampling tube disinfection interface 14, then open sampling tube disinfection interface 14's control valve, let disinfection washing case 12 in the disinfection liquid flow into sampling tube 10 under hydraulic effect finally flow into and deposit the liquid chamber 22 in the disinfection clean, after the cleaning work completion, can place into placing platform 3 through placing sampling needle 11 in, then cover apron 4 and avoid contacting with the air dust, be convenient for next use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a biological laboratory is with automatic sampling device of depositing appearance, includes base (1), its characterized in that, fixedly connected with cabinet (2) is gone up in base (1), set up the storage chamber in cabinet (2), storage intracavity wall rotates and is connected with lead screw (7), the lateral wall fixed mounting of cabinet (2) has driving motor (6), the one end fixed connection that lead screw (7) passed cabinet (2) is on driving motor's (6) output, threaded connection has intercommunication cover (8) on lead screw (7), fixed intercommunication has sampling tube (10) on intercommunication cover (8), the one end fixed connection that intercommunication cover (8) were kept away from in sampling tube (10) has sample needle (11), be equipped with stop gear on intercommunication cover (8), it deposits liquid chamber (22) to have seted up in intercommunication cover (8), sampling tube (10) are linked together through first check valve (21) and deposit liquid chamber (22), the liquid storage device is characterized in that a cam (23) is arranged in the liquid storage cavity (22), the outer wall of the communication sleeve (8) is provided with a micro step motor, the output end of the micro step motor extends into the liquid storage cavity (22) and is fixedly connected with the cam (23), the bottom side of the communication sleeve (8) is connected with a dropper pipe (27) through a second one-way valve, piston rods (25) are symmetrically inserted in the two sides of the communication sleeve (8) in a sliding mode, sealing rings (28) are symmetrically arranged in the communication sleeve (8), the sealing rings (28) are matched with the piston rods (25), an elastic mechanism is connected onto the piston rods (25), guide rail platforms (17) are symmetrically and fixedly connected onto the inner wall of the liquid storage cavity, a sample platform (15) is arranged in the storage cavity, a plurality of sampling tubes (16) are arranged on the sample platform (15) at equal intervals, a storage battery (5) is, the outer side wall of the storage cabinet (2) is provided with a controller panel (20).

2. The automatic sampling and sample storage device for the biological laboratory according to claim 1, wherein the elastic mechanism comprises an elastic expansion pipe (24) and a spring (26), the elastic expansion pipe (24) is fixedly connected to the communication sleeve (8), one end of the piston rod (25) is fixedly connected to the elastic expansion pipe (24), one end of the spring (26) is fixedly connected to the communication sleeve (8), the other end of the spring (26) is fixedly connected to the inner wall of the elastic expansion pipe (24), and the spring (26) is sleeved on the elastic expansion pipe (24).

3. The automatic sampling and sample storing device for the biological laboratory according to claim 1, wherein a disinfecting and cleaning box (12) is fixedly connected to the upper side of the storage cabinet (2), a liquid adding port (13) is formed in the disinfecting and cleaning box (12), a sealing plug is arranged on the liquid adding port (13), a sampling tube disinfecting interface (14) is arranged on one side of the disinfecting and cleaning box (12), a control valve is arranged on the sampling tube disinfecting interface (14), and the sampling tube (10) is matched with the sampling tube disinfecting interface (14).

4. The automatic sampling and sample storing device for the biological laboratory according to claim 1, wherein a placing table (3) is fixedly connected to the storage cabinet (2), a cover plate (4) is connected to the placing table (3) through a hinge, and a placing groove matched with the sampling needle (11) is formed in the placing table (3).

5. The automatic sampling and sample storing device for the biological laboratory according to claim 1, wherein a front baffle (30) is fixedly connected to the sample stage (15), a handle (29) is fixedly connected to the front baffle (30), a knob (31) is rotatably connected to the storage cabinet (2), a stop lever (32) is fixedly connected to the knob (31), and the stop lever (32) abuts against the front baffle (30).

6. The automatic sampling and sample storing device for the biological laboratory according to claim 1, wherein the limiting mechanism comprises a limiting rod (9), one end of the limiting rod (9) is fixedly connected to the upper side of the communication sleeve (8), the other end of the limiting rod (9) is rotatably connected with a limiting wheel, and the limiting wheel abuts against the inner wall of the storage cavity.

7. The automatic sampling and sample storing device for the biological laboratory according to claim 1, wherein the sample table (15) is rotationally connected with rollers (19) through a rotational axis, and the rollers (19) are abutted on the guide rail table (17).

8. The automatic sampling and sample storing device for the biological laboratory according to claim 1, wherein a plurality of test tube grooves are arranged on the sample table (15) at equal intervals, and a sponge pad (18) is fixedly connected in each test tube groove.