CN113694980A - Multiple culture solution transfer device - Google Patents
Multiple culture solution transfer device Download PDFInfo
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- CN113694980A CN113694980A CN202111109189.4A CN202111109189A CN113694980A CN 113694980 A CN113694980 A CN 113694980A CN 202111109189 A CN202111109189 A CN 202111109189A CN 113694980 A CN113694980 A CN 113694980A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/0275—Interchangeable or disposable dispensing tips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/0289—Apparatus for withdrawing or distributing predetermined quantities of fluid
- B01L3/0293—Apparatus for withdrawing or distributing predetermined quantities of fluid for liquids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention relates to the technical field of liquid transfer, in particular to a transfer device for various culture solutions; comprises a liquid transferring gun, a pressing unit, a liquid transferring unit, a gun barrel, a clamping column, a through hole and a rubber sheet; the lug of vice passageway upper end is pressed down, the automatic switch structure of vice passageway lower extreme makes the state that the vice passageway kept stretching out afterwards, through pressing the button of pressing the unit upper end afterwards, make the gas outgoing in the vice passageway, the rifle head that will correspond on the vice passageway afterwards stretches into in the culture solution, shift liquid, when the different liquid of needs shift, press the lug of vice passageway upper end once more, the automatic switch structure unlocks the vice passageway, thereby make vice passageway and rifle head reset, press different vice passageways afterwards, realize that different rifle heads stretch out.
Description
Technical Field
The invention relates to the technical field of liquid transfer, in particular to a transfer device for multiple culture solutions.
Background
The pipette is one kind of pipettor, is commonly used in the laboratory to the removal of a small amount of or trace liquid, and the specification is different, and the pipette of different specifications matches and uses the rifle head of different sizes, and the shape of different manufacturers' production is also slightly different, but theory of operation and operating method are unanimous basically.
At present, liquid transferring guns are used for a single time in the using process, one culture solution is transferred and added by using a disposable gun head, when multiple kinds of culture solutions are added, personnel are required to repeatedly carry out the steps of absorbing the culture solution, injecting the culture solution and replacing the gun head, the process is complicated, the time consumption is high, the culture solution added in the early stage is caused to be in contact with the air for a long time, and the pollution is caused;
meanwhile, although the existing multichannel sample injector can realize the 'absorption-injection' of various culture solutions, the gun head of the multichannel sample injector is exposed outside in the transfer process, the multichannel sample injector has a large volume, the multichannel sample injector is very easy to collide and pollute the culture solutions in the operation process, and the multichannel sample injector is a high-precision instrument, so that the collision can seriously affect the precision of the multichannel sample injector.
In view of the above, the present invention provides a multi-culture solution transferring device, which solves the above problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the problems that culture solution is transferred and added by using a disposable gun head, when various culture solutions are added, personnel are required to repeatedly carry out the steps of absorbing the culture solution, injecting the culture solution and replacing the gun head, the process is complicated, the time consumption is high, and the culture solution added in the early stage is in contact with the air for a long time, so that pollution is caused are solved; the invention provides a multi-culture solution transfer device.
The technical scheme adopted by the invention for solving the technical problems is as follows: a multiple broth transfer device comprising a pipette gun comprising:
the pressing unit is positioned at the upper half part of the pipette gun and is used for pumping liquid by the pipette gun;
the pipette comprises a pipette unit, the pipette unit is positioned at the lower end of the pipette gun and is movably matched with the pressing unit, the pipette unit comprises a plurality of pipette channels, the lower end of each pipette channel is connected with a gun head, and the pipette channels can realize the extension of a single gun head in sequence.
A vent unit located between the plurality of pipetting channels, the vent unit for enabling gas communication between the plurality of pipetting channels.
Preferably, the pipetting channel comprises a main channel, the main channel is movably connected with the pressing unit, the pipetting unit comprises,
the gun barrel is arranged on the outer ring of the main channel;
a through hole located at the bottom of the barrel, the through hole corresponding to the pipetting channel,
the first dials are arranged on two sides of the upper end of the gun barrel, and the main channel penetrates through the middle of the first dials;
the auxiliary channel surrounds the outer ring of the main channel and penetrates through the outer ring of the first disc;
the first pipe is arranged on the outer ring of the auxiliary channel and fixedly connected between the upper first disc and the lower first disc;
the self-locking switch is arranged on the main channel and the auxiliary channel and is used for realizing independent work of the main channel and the single auxiliary channel;
preferably, the aeration unit comprises;
one end of the first air pipe is communicated with the outer ring of the main channel, and the other end of the first air pipe penetrates through the first air pipe to be in close contact with the outer ring of the auxiliary channel;
a hole, a hole runs through and sets up the accessory channel outer lane, and when the accessory channel downstream, a logical trachea with a hole intercommunication:
one end of the second vent pipe is communicated with the first vent pipe, and the other end of the second vent pipe penetrates through the main channel and is positioned in the main channel;
the air bag is positioned in the main channel and is communicated with one end of the second vent pipe positioned in the main channel,
the piston block is positioned on the outer ring of the auxiliary channel and is used for enabling the gas in the first tube to enter the air bag when the auxiliary channel moves downwards;
preferably, the inner wall of each through hole is fixedly connected with a rubber sheet, and each rubber sheet is composed of a plurality of sectors.
Preferably, the rubber sheet gradually increases in thickness from the middle portion toward the outer ring.
Preferably, the end of the first vent pipe contacting the auxiliary channel is provided with a rubber block, and the rubber block is used for sealing when the first vent pipe contacts the first hole.
Preferably, the rubber blocks are arranged in an arc shape.
Preferably, the lower end of each liquid transfer channel is fixedly connected with a second tube, and the lower end of the second tube is arranged in a conical manner.
Preferably, the outer wall of the second pipe is uniformly provided with an annular groove, an annular air bag is fixedly connected in the annular groove, and the annular air bag is popped out of the annular groove in an initial state.
Preferably, a dish with barrel inner wall sliding connection, lower extreme a dish lower extreme has evenly linked firmly the U-shaped snap ring, the barrel inner wall has evenly linked firmly the card post, the card post card is gone into in the U-shaped snap ring.
The invention has the following beneficial effects:
1. the invention relates to a multi-culture solution transfer device, which is characterized in that an auxiliary channel, a rubber block, a first tube, a self-locking switch, a pipetting channel, a main channel, a second tube and an annular groove are arranged; the lug of vice passageway upper end is pressed down, the self-locking switch of vice passageway lower extreme makes the vice passageway keep the state of stretching out afterwards, through pressing the button of pressing the unit upper end afterwards, make the gas outgoing in the vice passageway, the rifle head that will correspond on the vice passageway afterwards stretches into in the culture solution, shift liquid, when the liquid of needs shift difference, press the lug of vice passageway upper end once more, self-locking switch unlocks the vice passageway, thereby make vice passageway and rifle head reset, press different vice passageways afterwards, realize that different rifle heads stretch out.
2. The multi-culture solution transfer device is characterized in that a second vent pipe, an air bag and a piston block are arranged; the piston piece of accessory channel outer lane moves along with the accessory channel downwards, the piston piece extrudees intraductal gas No. one, thereby make intraductal gas of a through-air pipe get into inside the gasbag, make the inside gas of gasbag increase, and then make the inside inflation of gasbag, make the gasbag after the inflation carry out the shutoff to the main entrance, thereby make gas can not flow from the main entrance, and a hole of single accessory channel one side does not put through with corresponding through-air pipe No. one in addition, so make and press the extruded gas of unit and can only flow out in the accessory channel after the downstream, thereby realize the air and move the gas circulation direction in the liquid passageway.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the pipetting unit of FIG. 1;
FIG. 3 is a structural view of the primary and secondary channels of FIG. 2;
FIG. 4 is a structural view of the main channel of FIG. 3;
FIG. 5 is a structural view of the U-shaped snap ring and snap post of the present invention;
FIG. 6 is a view showing the structure of a rubber sheet in the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 2 at A;
FIG. 8 is an enlarged view of a portion of FIG. 2 at B;
in the figure; the pipette comprises a pipette gun 1, a pressing unit 11, a pipette unit 2, a gun tube 21, a clamping column 211, a through hole 22, a rubber sheet 221, a first tray 23, a U-shaped clamping ring 231, an auxiliary channel 24, a rubber block 241, a first tube 25, a self-locking switch 26, a pipette channel 3, a main channel 31, a second tube 32, an annular groove 33, an annular air bag 34, a gun head 4, an air ventilation unit 5, a first air ventilation pipe 51, a first hole 52, a second air ventilation pipe 53, an air bag 54 and a piston block 55.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-8;
a multiple broth transfer device comprising a pipette gun 1, said pipette gun 1 comprising:
the pressing unit 11 is positioned at the upper half part of the liquid-transferring gun 1, and the pressing unit 11 is used for pumping liquid by the liquid-transferring gun 1;
the pipette unit 2 is located the lower extreme of pipette 1 and pipette unit 2 with press unit 11 is swing joint, pipette unit 2 includes a plurality of liquid-transfering channel 3, liquid-transfering channel 3 lower extreme is connected with rifle head 4, and a plurality of liquid-transfering channel 3 can realize that single rifle head 4 stretches out in order.
A gas aeration unit 5, wherein the gas aeration unit 5 is positioned among the pipetting channels 3, and the gas aeration unit 5 is used for realizing gas communication among the pipetting channels 3;
when in use, when liquid is transferred, a thumb is used for pressing a button on the top of the pressing unit 11 by holding the pressing unit 11 on the upper half part of the pipette 1, after the pressing unit 11 presses the gas inside, the gas on the upper half part of the pipette 1 enters the pipetting channel 3 inside the pipetting unit 2, then the gas is discharged from the pipetting channel 3, after the gas is discharged, the pipette head 4 at the lower end of the pipetting channel 3 is extended into the liquid by extending the single pipetting channel 3, then the thumb releases the button at the upper end of the pressing unit 11, a cavity inside the pressing unit 11 generates negative pressure, the gas at the lower end of the pipette 1 is extracted, the gas inside the pipetting channels 3 can be circulated by the ventilating unit 5, then the pipetting channel 3 extracts the liquid from the liquid by the pipette head 4, and because of the strong gas inside the pipetting channel 3, make liquid can't flow downwards in rifle head 4 inside, make liquid-transfering gun 1 move in the container that needs were shifted to afterwards, press 11 upper ends of unit of pressing once more afterwards, make the inside atmospheric pressure of unit of pressing 11 increase, make the inside gas of liquid-transfering channel 3 flow downwards afterwards, the liquid top in barrel 21 is extruded by the gas afterwards, make liquid flow into inside the container downwards, when shifting multiple liquid, liquid-transfering unit 2 is through flexible different liquid-transfering channel 3, shift liquid through using different rifle head 4, thereby make and avoid changing rifle head 4 many times, avoid the culture solution to contact with the air for a long time, cause the pollution, and through making liquid-transfering unit 2 and pressing unit 11 swing joint, thereby make things convenient for the change of the inside rifle head 4 of liquid-transfering unit 2.
The pipetting channel 3 comprises a main channel 31, the main channel 31 is movably connected with the pressing unit 11, the pipetting unit 2 comprises,
a barrel 21, wherein the barrel 21 is arranged outside the main channel 31;
a through hole 22, the through hole 22 is positioned at the bottom of the barrel 21, the through hole 22 and the pipetting channel 3 correspond to each other,
a dial 23, wherein the dial 23 is arranged at two sides of the upper end of the barrel 21, and the main channel 31 passes through the middle of the dial 23;
a secondary channel 24, wherein the secondary channel 24 surrounds the outer ring of the primary channel 31, and the secondary channel 24 passes through the outer ring of the first disc 23;
the first pipe 25 is arranged on the outer ring of the auxiliary channel 24, and the first pipe 25 is fixedly connected between the upper first disc 23 and the lower first disc 23;
the self-locking switch 26 is arranged on the main channel 31 and the auxiliary channel 24, and the self-locking switch 26 is used for realizing independent work of the main channel 31 and the single auxiliary channel 24;
when in use, the pipetting channel 3 comprises the main channel 31, the main channel 31 is movably connected with the pressing unit 11, the pipetting unit 2 comprises the barrel 21, the barrel 21 is arranged at the outer ring of the main channel 31, the main channel 31 is positioned at the middle part of the barrel 21, the through hole 22 is arranged at the lower end of the barrel 21, the through hole 22 corresponds to the pipetting channel 3, when the main channel 31 is used for pumping liquid, the upper end of the pressing unit 11 is pressed, when the button at the upper end of the pressing unit 11 is pressed to the bottom, the pressing unit 11 is continuously pressed, the main channel 31 moves downwards, the gun head 4 at the lower end of the main channel 31 extends out of the through hole 22, then the self-locking switch 26 performs self-locking on the pressing unit 11, the self-locking switch 26 is equivalent to an automatic telescopic locking mechanism in an automatic ball pen, the self-locking switch 26 enables the main channel 31 to keep the extending state, when different liquids need to be transferred, the main channel 31 is unlocked by the self-locking switch 26 by pressing the pressing unit 11 again, the main channel 31 rebounds upwards, then a lug at the upper end of the auxiliary channel 24 is pressed downwards, then the auxiliary channel 24 is kept in a protruding state by the self-locking switch 26 at the lower end of the auxiliary channel 24, then gas is generated above the pressing unit 11 by pressing a button at the upper end of the pressing unit 11, then the gas flows into the auxiliary channel 24 from the main channel 31 through the ventilation unit 5, so that the gas in the auxiliary channel 24 is discharged, then the gun heads 4 on the corresponding auxiliary channels 24 are extended into the culture solution, the liquid is transferred, when different liquids need to be transferred, the lug at the upper end of the auxiliary channel 24 is pressed again, the self-locking switch 26 unlocks the auxiliary channel 24, so that the auxiliary channel 24 and the gun heads 4 are reset, and then different auxiliary channels 24 are pressed, so that different gun heads 4 are extended.
The ventilation unit 5 includes;
one end of the first vent pipe 51 is communicated with the outer ring of the main channel 31, and the other end of the first vent pipe 51 penetrates through the first pipe 25 to be in close contact with the outer ring of the auxiliary channel 24;
a first hole 52, the first hole 52 is arranged on the outer ring of the secondary channel 24 in a penetrating way, and when the secondary channel 24 moves downwards, the first vent pipe 51 is communicated with the first hole 52:
one end of the second vent pipe 53 is communicated with the first vent pipe 25, and the other end of the second vent pipe 53 penetrates through the main channel 31 and is positioned inside the main channel 31;
an air bag 54, wherein the air bag 54 is positioned inside the main channel 31, the air bag 54 is communicated with one end of the second vent pipe 53 positioned inside the main channel 31,
a piston block 55, wherein the piston block 55 is positioned at the outer ring of the secondary channel 24, and when the piston block 55 is used for the downward movement of the secondary channel 24, the gas in the first tube 25 enters the air bag 54;
when the culture medium automatic-locking device is used, when a bump at the end of the auxiliary channel 24 is pressed, the auxiliary channel 24 moves downwards in the first tube 25, after the self-locking switch 26 realizes self-locking of the auxiliary channel 24, the first hole 52 at one side of the auxiliary channel 24 is communicated with the first vent pipe 51 at the outer ring of the main channel 31, when a button at the upper end of the pressing unit 11 is pressed, the extruded gas in the pressing unit 11 flows into the extended auxiliary channel 24 from the main channel 31, so that the gun head 4 corresponding to the lower end of the auxiliary channel 24 realizes transfer of different culture liquids, when the auxiliary channel 24 moves downwards, the piston block 55 at the outer ring of the auxiliary channel 24 moves downwards along with the auxiliary channel 24, the piston block 55 extrudes the gas in the first tube 25, so that the gas in the first tube 25 enters the air bag 54 through the first vent pipe 51, and the gas in the air bag 54 is increased, further, the air bag 54 is inflated to close the main channel 31 by the inflated air bag 54, so that the gas cannot flow out of the main channel 31, and the first hole 52 on one side of the single sub-channel 24 is not communicated with the corresponding first vent pipe 51, so that the gas pressed by the pressing unit 11 can only flow out of the sub-channel 24 after moving downwards, thereby realizing the gas flowing direction in the air pipetting channel 3, and further reducing the using steps of the pipetting gun 1 when in use.
The inner wall of each through hole 22 is fixedly connected with a rubber sheet 221, and each rubber sheet 221 is composed of a plurality of sectors;
the thickness of the rubber sheet 221 gradually increases from the middle part to the outer ring;
when the pipette tip is used, the rubber sheet 221 is fixedly connected to the inner wall of the through hole 22, the rubber sheet 221 is formed by a plurality of fan-shaped parts, when the pipette channel 3 extends out of the through hole 22, the rubber sheet 221 is extruded and unfolded, the pipette channel 3 passes through the middle part of the rubber sheet 221, and after the pipette channel 3 passes through the inside of the rubber sheet 221, the middle part of the rubber sheet 221 is extruded to be in close contact with the outer wall of the pipette channel 3, so that the pipette tip 4 extends out, the pipette channel 3 is sealed, when the pipette channel 3 does not extend out of the through hole 22, the pipette channel 3 is positioned inside the barrel 21, the rubber sheet 221 inside the through hole 22 seals the inside of the barrel 21, and therefore the exposure of the pipette tip 4 to the outside is avoided, further, impurities in the air are prevented from polluting the pipette tip 4, and the problem that the pipette tip 4 is collided is avoided; through making the rubber piece 221 increase from the middle part to outer lane thickness gradually, when rifle head 4 withdraws, the middle part of rubber piece 221 is to pipetting channel 3's outer wall and scrape to when avoiding pipetting channel 3 to withdraw, inside remaining culture solution got into barrel 21 on rifle head 4 outer wall, and then further avoid rifle head 4 to produce the pollution.
A rubber block 241 is arranged at one end of the first vent pipe 51, which is in contact with the auxiliary channel 24, and the rubber block 241 is used for sealing when the first vent pipe 51 is in contact with the first hole 52;
the rubber blocks 241 are arranged in an arc shape;
when the liquid transfer gun is used, the rubber block 241 is arranged at one end, in contact with the outer wall of the auxiliary channel 24, of the first air pipe 51, so that the upper end of the auxiliary channel 24 is pressed, when the auxiliary channel 24 moves downwards, the rubber block 241 is in close contact with the outer ring of the auxiliary channel 24, when the first air pipe 51 conducts air to the inside of the auxiliary channel 24, the sealing performance of the first air pipe 51 and the first hole 52 is improved, the contact area of the rubber block 241 and the inner wall of the auxiliary channel 24 is increased by arranging the rubber block 241 in an arc shape, when the first air pipe 51 is communicated with the first hole 52 on one side of the auxiliary channel 24, the air tightness between the first air pipe 51 and the first hole 52 is further increased, and the liquid transfer gun 1 performance liquid transfer precision is improved.
The lower end of each pipetting channel 3 is fixedly connected with a second tube 32, and the lower end of the second tube 32 is arranged in a conical manner;
annular grooves 33 are uniformly formed in the outer wall of the second pipe 32, an annular air bag 34 is fixedly connected into the annular grooves 33, and the annular air bag 34 is popped out of the annular grooves 33 in an initial state;
when the pipette tip is used, the second tube 32 is arranged at the lower end of the pipette channel 3, the lower end of the second tube 32 is arranged in a conical shape, when the lower end of the pipette channel 3 is contacted with the pipette tip 4, the contact area between the pipette tip 4 and the lower end of the pipette channel 3 is increased, so that the contact area between the pipette channel 3 and the pipette tip 4 is increased, the sealing performance between the pipette tip 4 and the pipette channel 3 is increased, the annular groove 33 is formed in the outer wall of the second tube 32, the annular air bag 34 is fixedly connected in the annular groove 33, so that in an initial state, the annular air bag 34 is popped out of the annular groove 33, when the pipette tip 4 is contacted with the lower end of the pipette channel 3, the annular air bag 34 on the outer wall of the second tube 32 is squeezed against the inner wall of the pipette tip 4, on one hand, the annular air bag 34 is squeezed against the pipette tip 4, so that the sealing performance between the pipette tip 4 and the second tube 32 is increased, on the other hand, when the annular air bag 34 is contacted with the pipette tip 4, the annular air bag 34 has a vibration damping effect on the gun head 4, so that the gun head 4 is prevented from being impacted, and the precision of the gun head 4 is prevented from changing.
The first dial 23 is connected with the inner wall of the gun barrel 21 in a sliding mode, the lower end of the first dial 23 at the lower end is fixedly connected with a U-shaped clamping ring 231 uniformly, the inner wall of the gun barrel 21 is fixedly connected with clamping columns 211 uniformly, and the clamping columns 211 are clamped into the U-shaped clamping ring 231;
during the use, through evenly having linked firmly U-shaped snap ring 231 at a dish 23 lower extreme, set up card post 211 at barrel 21 inner wall, make liquid-transfering channel 3, a dish 23 and rifle head 4 wholly place back in barrel 21, through rotating barrel 21, make card post 211 block go into in the U-shaped snap ring 231, can make liquid-transfering gun 1 work afterwards, and when rifle head 4 of liquid-transfering channel 3 lower extreme needs to be changed, through rotating barrel 21, make card post 211 break away from U-shaped snap ring 231, whole liquid-transfering channel 3 that takes out afterwards, a dish 23 and rifle head 4 are whole, change rifle head 4 afterwards, and then make all rifle heads 4 of disposable change, from the change number of times that reduces rifle head 4, and then improve liquid-transfering gun 1's availability factor.
The specific working process is as follows:
when liquid is transferred, a thumb is used for pressing a button on the top of a pressing unit 11 by holding the pressing unit 11 on the upper half part of the pipette gun 1, after the pressing, the pressing unit 11 presses the gas inside, the gas on the upper half part of the pipette gun 1 enters a pipetting channel 3 inside a pipetting unit 2, then the gas is discharged from the pipetting channel 3, after the gas is discharged, a pipette tip 4 at the lower end of the pipetting channel 3 is extended into the liquid by extending a single pipetting channel 3, then the thumb releases the button at the upper end of the pressing unit 11, a cavity inside the pressing unit 11 generates negative pressure to extract the gas on the lower end of the pipette gun 1, the gas inside a plurality of pipetting channels 3 can be circulated by a ventilation unit 5, then the pipetting channel 3 extracts the liquid from the liquid through the pipette tip 4, and due to the strong gas inside the pipetting channel 3, make liquid can't flow downwards in rifle head 4 inside, make liquid-transfering gun 1 move in the container that needs were shifted to afterwards, press 11 upper ends of unit of pressing once more afterwards, make the inside atmospheric pressure of unit of pressing 11 increase, make the inside gas of liquid-transfering channel 3 flow downwards afterwards, the liquid top in barrel 21 is extruded by the gas afterwards, make liquid flow into inside the container downwards, when shifting multiple liquid, liquid-transfering unit 2 is through flexible different liquid-transfering channel 3, shift liquid through using different rifle head 4, thereby make and avoid changing rifle head 4 many times, avoid the culture solution to contact with the air for a long time, cause the pollution, and through making liquid-transfering unit 2 and pressing unit 11 swing joint, thereby make things convenient for the change of the inside rifle head 4 of liquid-transfering unit 2.
Front, back, left, right, up and down are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as front, the left side of the observer is defined as left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but 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 scope of the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Claims (10)
1. Multiple broth transfer device comprising a pipetting gun (1), characterized in that said pipetting gun (1) comprises:
the pressing unit (11), the pressing unit (11) is positioned at the upper half part of the pipette gun (1), and the pressing unit (11) is used for pumping liquid from the pipette gun (1) of the pipette gun (1);
the liquid transfer unit (2) is positioned at the lower end of the liquid transfer gun (1), the liquid transfer unit (2) is movably connected with the pressing unit (11), the liquid transfer unit (2) comprises a plurality of liquid transfer channels (3), the lower ends of the liquid transfer channels (3) are connected with gun heads (4), and the plurality of liquid transfer channels (3) can sequentially realize the extension of a single gun head (4);
a gas aeration unit (5), wherein the gas aeration unit (5) is positioned among the pipetting channels (3), and the gas aeration unit (5) is used for realizing the gas circulation among the pipetting channels (3).
2. The multiple broth transfer device according to claim 1, wherein: the pipetting channel (3) comprises a main channel (31), the main channel (31) is movably connected with the pressing unit (11), the pipetting unit (2) comprises,
a barrel (21), said barrel (21) being disposed outside said main channel (31);
a through hole (22), wherein the through hole (22) is positioned at the bottom of the barrel (21), and the through hole (22) and the pipetting channel (3) correspond to each other;
a dial (23), wherein the dial (23) is arranged on two sides of the upper end of the barrel (21), and the main channel (31) penetrates through the middle of the dial (23);
a secondary channel (24), wherein the secondary channel (24) surrounds the outer ring of the main channel (31), and the secondary channel (24) passes through the outer ring of the first disc (23);
a first pipe (25), wherein the first pipe (25) is arranged on the outer ring of the auxiliary channel (24), and the first pipe (25) is fixedly connected between an upper first disc (23) and a lower first disc (23);
the automatic switch structure (26) is arranged on the main channel (31) and the auxiliary channel (24), and the automatic switch structure (26) is used for realizing independent work of the main channel (31) and the single auxiliary channel (24).
3. The multiple broth transfer device according to claim 1, wherein: the aeration unit (5) comprises;
one end of the first vent pipe (51) is communicated with the outer ring of the main channel (31), and the other end of the first vent pipe (51) penetrates through the first pipe (25) to be in close contact with the outer ring of the auxiliary channel (24);
a first hole (52), wherein the first hole (52) penetrates through the outer ring of the secondary channel (24), and when the secondary channel (24) moves downwards, the first vent pipe (51) is communicated with the first hole (52):
one end of the second air pipe (53) is communicated with the first air pipe (25), and the other end of the second air pipe (53) penetrates through the main channel (31) and is positioned inside the main channel (31);
the air bag (54) is positioned inside the main channel (31), and the air bag (54) is communicated with one end, positioned inside the main channel (31), of the second vent pipe (53);
a piston block (55), wherein the piston block (55) is positioned at the outer ring of the secondary channel (24), and when the piston block (55) is used for the secondary channel (24) to move downwards, the gas in the first tube (25) enters the air bag (54).
4. The multiple broth transfer device according to claim 3, wherein: each through-hole (22) inner wall links firmly rubber sheet (221), rubber sheet (221) comprise a plurality of fan-shaped.
5. The multiple broth transfer device according to claim 3, wherein: the rubber sheet (221) gradually increases in thickness from the middle portion toward the outer ring.
6. The multiple broth transfer device according to claim 3, wherein: the rubber block (241) is arranged at one end, in contact with the auxiliary channel (24), of the first vent pipe (51), and the rubber block (241) is used for sealing when the first vent pipe (51) is in contact with the first hole (52).
7. The multiple broth transfer device according to claim 6, wherein: the rubber blocks (241) are arranged in an arc shape.
8. The multiple broth transfer device according to claim 1, wherein: every move liquid passageway (3) lower extreme and link firmly No. two pipe (32), No. two pipe (32) lower extreme is the setting of taper type.
9. The multiple broth transfer device according to claim 8, wherein: annular groove (33) have evenly been seted up to the outer wall of No. two pipe (32), annular bag (34) have been linked firmly in annular groove (33), annular bag (34) outer lane initial condition is down popped out annular groove (33).
10. The multiple broth transfer device according to claim 8, wherein: a dish (23) with barrel (21) inner wall sliding connection, lower extreme a dish (23) lower extreme has evenly linked firmly U-shaped snap ring (231), barrel (21) inner wall has evenly linked firmly card post (211), card post (211) card is gone into in U-shaped snap ring (231).
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