CN219129311U

CN219129311U - Liquid-transfering gun of rotatable replacement rifle head

Info

Publication number: CN219129311U
Application number: CN202223576010.9U
Authority: CN
Inventors: 范开文; 戴伟森; 廖梅霞; 蔡婉琳; 廖俊聪
Original assignee: Guangdong Daoyu Testing Technology Co ltd
Current assignee: Guangdong Daoyu Testing Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-06
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a pipette with a rotatable replaceable gun head, which comprises a pipette gun body, wherein a piston rod is arranged in the pipette gun body, an adjusting knob is arranged at the top of the piston rod, the adjusting knob can be used for adjusting the amount of solution sucked by the pipette gun through rotation, the bottom of the pipette gun body is communicated with a multichannel shunt, the bottom of the multichannel shunt is communicated with an eight-component flow tube, the shunt tube is annularly distributed at the bottom of the multichannel shunt, and the bottom of the shunt tube is sleeved with a liquid suction gun head. The utility model solves the problems that a single gun head is difficult to be vertically immersed into a reagent to perform correct operation in the process of sucking the reagent due to the existence of a plurality of gun heads, the inclined state of a pipetting gun can cause the change of an air pressure surface and can influence pipetting accuracy, so that the progress of an experiment is difficult to advance, and errors of data obtained by subsequent experiments can be caused.

Description

Liquid-transfering gun of rotatable replacement rifle head

Technical Field

The utility model relates to the technical field of pipette guns, in particular to a pipette gun with a rotatable replaceable gun head.

Background

The utility model discloses a liquid transferring gun which is a liquid transferring device and is commonly used for transferring small or trace liquid in a laboratory, wherein when the liquid transferring gun is used, a plurality of groups of gun heads are adopted to absorb different reagents respectively to advance the experimental progress and improve the experimental efficiency, the correct using method of the liquid transferring gun is that the liquid transferring gun is perpendicular to the liquid level of the reagents, and the liquid transferring gun is used for carrying out formal reagent absorption after the gun heads are rinsed for a plurality of times, and the utility model with the publication number of CN205413072U provides a liquid transferring gun for rotating and replacing the gun heads. The rotating piece is rotated, so that one of the through gun heads is opposite to the vent hole on the fixing piece, the piston can be pulled to enable the communicated gun head, the vent hole and the piston cavity to generate negative pressure, then reagent can be pumped onto the gun head, and after the reagent is moved to the corresponding container, the piston is pushed to push out the reagent in the gun head; and the rotating piece is rotated to enable the other through gun head to be opposite to the vent hole on the fixing piece, and then the suction of the other reagent can be completed, so that the pipetting efficiency is high, the correct operation is ensured, and the safety, reliability and rapidness of the test are ensured.

The problems with the above techniques are: because the existence of multiunit rifle head leads to sucking the reagent in-process be difficult to with single rifle head vertical immersion in the reagent carry out correct operation, and the state of pipette gun slope can cause the change of atmospheric pressure face, can lead to the fact the influence to the pipetting accuracy to be difficult to impel the experiment progress, also can cause the data that follow-up experiment obtained to appear the error.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model aims to provide a pipette with rotatable replaceable gun heads, which has the advantages of sucking the same kind of reagent and improving the experimental efficiency, and solves the problems that a single gun head is difficult to be immersed into the reagent vertically to perform correct operation in the process of sucking the reagent due to the existence of a plurality of groups of gun heads, the inclined state of the pipette can cause the change of an air pressure surface, the pipetting accuracy is influenced, the experimental progress is difficult to be pushed, and the error of data obtained by subsequent experiments is caused.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rotatable pipette of replacing rifle head, includes the pipette rifle body, the inside of pipette rifle body is provided with the piston rod, the top of piston rod is provided with adjust knob, adjust knob can be through rotatory the solution volume of adjusting pipette suction, the bottom intercommunication of pipette rifle body has multichannel shunt, the bottom intercommunication of multichannel shunt has eight component flow tubes, and the shunt tube is annular and distributes in multichannel shunt's bottom, the bottom cover of shunt tube is equipped with the pipette rifle head to make the pipette rifle head can be linked together with the piston chamber of pipette rifle body through multichannel shunt by eight component flow tubes, the bottom fixedly connected with rotation replacement mechanism of pipette rifle body, thereby can be according to the different and convenient different pipette heads of replacement of suction liquid.

As the preferable choice of the utility model, the said rotary replacement mechanism includes supporting the box, said supporting the box and contacting with liquid suction gun, said supporting the top of the inner wall of the box fixedly connects with the electrical machinery, the bottom of the electrical machinery fixedly connects with the middle gear, the surface engagement of the said middle gear connects with the transfer gear, the inside of the said transfer gear fixedly connects with the locating column.

As the preferred one side of the locating column is rotatably connected with the inner wall of the supporting box body, one side of the middle rotating gear is fixedly connected with a clamping plate, one end of the clamping plate is slidably connected with the locating column, and the other end of the clamping plate penetrates into the liquid suction gun head.

As the preferable mode of the utility model, the surface of the shunt tube is fixedly connected with a limit stop, and one side of the limit stop is fixedly connected with the supporting box body.

As the preferable mode of the utility model, the bottom of the liquid suction gun head is sleeved with a gun head seat, and the top of the gun head seat is provided with placing grooves corresponding to eight groups of liquid suction gun heads.

As the preferred embodiment of the utility model, the bottom of one side of the liquid suction gun head is fixedly connected with a plugboard, and one side of the inner wall of the placing groove is provided with a plugboard slot in clearance fit with the plugboard.

As the preferable mode of the utility model, the bottom of the middle gear is connected with the fixed seat in a sliding way, the bottom of the fixed seat and the bottom of the inner wall of the supporting box body are fixedly connected with eight groups of supporting plates on the surface of the fixed seat, and one side of each supporting plate extends to the bottom of the transfer gear and is connected with the transfer gear in a sliding way.

As the preferable mode of the utility model, one side of the top of the pipette gun body is fixedly connected with a controller, and the controller is electrically connected with a motor through a wire.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the pipette gun body, the piston rod, the adjusting knob, the multichannel shunt, the shunt tube, the pipette gun head and the rotary replacement mechanism are arranged, when the pipette gun body absorbs different reagents, the scale on the surface of the pipette gun body is firstly adjusted through the adjusting knob, so that accurate control of the pipette amount is realized, then the piston rod is pushed downwards to a first stopping point through the adjusting knob, the pipette gun body is moved to be immersed into two to three millimeters below the liquid level, and then the adjusting knob is released to enable eight groups of pipette gun heads at the bottom to absorb the reagents in the container at the same time, so that the sample adding operation times of experimenters can be reduced, the sample adding precision can be improved, and the experimental progress is pushed.

2. According to the utility model, the rotary replacement mechanism is arranged, the clamping plate can fix the liquid suction gun head on the surface of the shunt pipe after entering the liquid suction gun head, and a worker can control the motor through the controller to achieve convenient replacement of the liquid suction gun head.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a bottom perspective view of the multi-channel splitter of the present utility model;

FIG. 3 is a disassembled perspective view of a pipette tip and tip base of the present utility model;

fig. 4 is a cross-sectional perspective view of the supporting case of the present utility model.

In the figure: 1. a pipette gun body; 2. a piston rod; 3. an adjustment knob; 4. a multi-channel shunt; 5. a shunt; 6. a liquid suction gun head; 701. supporting the box body; 702. a motor; 703. a middle gear; 704. a transfer gear; 705. positioning columns; 706. a clamping plate; 8. a limit stop; 9. gun head seat; 10. a plug board; 11. a fixing seat; 12. a support plate; 13. and a controller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, the pipette gun with the rotatable replacement gun head provided by the utility model comprises a pipette gun body 1, a piston rod 2 is arranged in the pipette gun body 1, an adjusting knob 3 is arranged at the top of the piston rod 2, the adjusting knob 3 can adjust the solution amount sucked by the pipette by rotating, a multi-channel flow divider 4 is communicated with the bottom of the pipette gun body 1, an eight-component flow tube 5 is communicated with the bottom of the multi-channel flow divider, the flow divider 5 is annularly distributed at the bottom of the multi-channel flow divider, and a liquid suction gun head 6 is sleeved at the bottom of the flow divider 5, so that the liquid suction gun head 6 can be communicated with a piston cavity of the pipette gun body 1 by the eight-component flow tube 5 through the multi-channel flow divider 4, and a rotary replacement mechanism is fixedly connected to the bottom of the pipette gun body 1, so that different liquid suction gun heads 6 can be replaced conveniently and rapidly according to different liquid suction.

As a technical optimization scheme of the utility model, by arranging the pipette gun body 1, the piston rod 2, the adjusting knob 3, the multichannel shunt 4, the shunt pipe 5, the pipette gun heads 6 and the rotary replacement mechanism, when the pipette gun body 1 absorbs different reagents, firstly, the scale on the surface of the pipette gun body 1 is adjusted through the adjusting knob 3, so that the accurate control of the pipette volume is realized, then, the piston rod 2 is pushed downwards to a first stopping point through the adjusting knob 3, then, the pipette gun body 1 is moved to be immersed into the position below the liquid level by two to three millimeters, and then, the adjusting knob 3 is released to enable the eight groups of pipette gun heads 6 at the bottom to absorb the reagents in the container at the same time, so that the sample adding operation times of experimenters can be reduced, the sample adding precision can be improved, and the experiment progress is pushed.

Referring to fig. 4, the rotary replacement mechanism includes a supporting case 701, the supporting case 701 contacts with the liquid suction gun body, a motor 702 is fixedly connected to the top of the inner wall of the supporting case 701, a middle gear 703 is fixedly connected to the bottom of the motor 702, a transfer gear 704 is connected to the surface of the middle gear 703 in a meshed manner, and a positioning column 705 is fixedly connected to the inside of the transfer gear 704.

Referring to fig. 4, one side of the positioning column 705 is rotatably connected with the inner wall of the supporting box 701, one side of the transfer gear 704 is fixedly connected with a clamping plate 706, one end of the clamping plate 706 is slidably connected with the positioning column 705, and the other end of the clamping plate 706 penetrates into the liquid suction gun head 6.

As a technical optimization scheme of the utility model, by arranging the rotary replacement mechanism, the clamping plate 706 can fix the liquid suction gun head 6 on the surface of the shunt tube 5 after entering the liquid suction gun head 6, and a worker can control the motor 702 through the controller 13 to achieve convenient replacement of the liquid suction gun head 6.

Referring to fig. 4, a limit stop 8 is fixedly connected to the surface of the shunt 5, and one side of the limit stop 8 is fixedly connected to the supporting case 701.

As a technical optimization scheme of the utility model, the limit stop 8 is arranged, so that the liquid suction gun head 6 can be conveniently positioned during installation, and the installation efficiency is improved.

Referring to fig. 1, a gun head seat 9 is sleeved at the bottom of the liquid suction gun head 6, and a placing groove corresponding to eight groups of liquid suction gun heads 6 is formed at the top of the gun head seat 9.

As a technical optimization scheme of the utility model, the new liquid suction gun head 6 is placed in the placing groove by arranging the gun head seat 9 and the placing groove, so that the new liquid suction gun head 6 can be directly and once installed when the liquid suction gun head 6 is replaced.

Referring to fig. 2, a plug board 10 is fixedly connected to the bottom of one side of the liquid suction gun head 6, and a plug slot in clearance fit with the plug board 10 is formed in one side of the inner wall of the placement slot.

As a technical optimization scheme of the utility model, the liquid suction gun head 6 is guided when being installed in the gun head seat 9 by arranging the plug board.

Referring to fig. 4, the bottom of the middle gear 703 is slidably connected with a fixing seat 11, the bottom of the fixing seat 11 is fixedly connected with eight groups of support plates 12 with the surface of the bottom of the inner wall of the supporting box 701 fixedly connected with the fixing seat 11, and one side of the support plates 12 extends to the bottom of the transfer gear 704 and is slidably connected with the transfer gear 704.

As a technical optimization scheme of the utility model, the stability of the middle gear 703 and the transfer gear 704 during rotation is improved by arranging the fixing seat 11 and the support plate 12.

Referring to fig. 1, a controller 13 is fixedly connected to one side of the top of the pipette gun body 1, and the controller 13 is electrically connected with a motor 702 through a wire.

The working principle and the using flow of the utility model are as follows: when the reagent is applied to the reagent feeding operation of a laboratory, firstly, the scale on the surface of the pipette gun body 1 is adjusted by rotating the adjusting knob 3, so as to realize the accurate control of the pipetting amount, then, the piston rod 2 is pushed downwards to a first stopping point by the adjusting knob 3, then, the pipette gun body 1 is moved to be immersed into the liquid level for two to three millimeters, then, the adjusting knob 3 is released to enable the eight groups of pipette tips 6 at the bottom to simultaneously suck the reagent in the container, at the moment, the reagent can be formally sucked after the reagent is required to be rinsed for two to three times, after the reagent feeding operation is finished, the pipette gun body 1 is moved to the inner wall of the container which is required to be fed, then, the adjusting knob 3 is pushed to a second stopping point, so that the reagent in the pipette tip 6 is emptied, thereby completing the pipetting operation, realizing the eight sample feeding effects by single sample feeding operation, the sample adding efficiency is well improved, the experiment progress is advanced, when different reagents need to be absorbed, the staff starts the motor 702 through the controller 13, the motor 702 drives the middle gear 703 to rotate, the middle gear 703 drives the transfer gear 704 to rotate, the transfer gear 704 drives the clamping plate 706 on one side to leave the liquid suction gun head 6, the liquid suction gun head 6 can drop downwards under the action of gravity and the shunt tube 5 at the moment, then the new liquid suction gun head 6 is placed into the placing groove at the top of the gun head seat 9 through the inserting plate 10, then the liquid suction gun body 1 is moved downwards, the shunt tube 5 is inserted into the liquid suction gun head 6, the motor 702 is reversed through the controller 13, the clamping plate 706 can enter the liquid suction gun head 6 to fix the liquid suction gun head 6, and the effect of conveniently replacing the liquid suction gun head 6 is achieved.

To sum up: this pipette gun of rotatable replacement rifle head through setting up pipette rifle body 1, piston rod 2, adjust knob 3, multichannel shunt 4, shunt tube 5, pipette rifle head 6 and rotatory replacement mechanism's cooperation use, has solved because the existence of multiunit rifle head leads to sucking reagent in-process be difficult to with single rifle head vertical immersion reagent in carry out correct operation, and the state of pipette gun slope can cause the change of atmospheric pressure face, can cause the influence to the pipetting accuracy to be difficult to impel experimental progress, also can cause the problem that the data that follow-up experiment obtained appears the error.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pipette gun with a rotatable replacement gun head, which is characterized in that: including the liquid-transfering gun rifle body (1), the inside of liquid-transfering gun rifle body (1) is provided with piston rod (2), the top of piston rod (2) is provided with adjust knob (3), adjust knob (3) can be through rotatory the solution volume of adjusting the liquid-transfering gun suction of liquid-transfering gun, the bottom intercommunication of liquid-transfering gun rifle body (1) has multichannel shunt (4), the bottom intercommunication of multichannel shunt (4) has eight-component flow tube (5), and shunt tube (5) are the annular and distribute in multichannel shunt's bottom, the bottom cover of shunt tube (5) is equipped with imbibition rifle head (6) to make imbibition rifle head (6) be linked together with the piston chamber of liquid-transfering gun rifle body (1) through multichannel shunt (4), the bottom fixedly connected with rotary replacement mechanism of liquid-transfering gun body (1), thereby can be according to the different and the convenient different imbibition rifle heads (6) of liquid suction.

2. A pipette tip rotatable refill gun according to claim 1 wherein: the rotary replacement mechanism comprises a supporting box body (701), the supporting box body (701) is in contact with the liquid suction gun body, a motor (702) is fixedly connected to the top of the inner wall of the supporting box body (701), a middle gear (703) is fixedly connected to the bottom of the motor (702), a transfer gear (704) is connected to the surface of the middle gear (703) in a meshed mode, and a positioning column (705) is fixedly connected to the inside of the transfer gear (704).

3. A pipette tip rotatable refill gun according to claim 2, wherein: one side of reference column (705) rotates with the inner wall of supporting box body (701) to be connected, one side fixedly connected with joint board (706) of transfer gear (704), the one end and the reference column (705) sliding connection of joint board (706), the other end of joint board (706) runs through to the inside of imbibition rifle head (6).

4. A pipette tip rotatable refill gun according to claim 2, wherein: the surface of the shunt tube (5) is fixedly connected with a limit stop (8), and one side of the limit stop (8) is fixedly connected with the supporting box body (701).

5. A pipette tip rotatable refill gun according to claim 1 wherein: the bottom of the liquid suction gun head (6) is sleeved with a gun head seat (9), and the top of the gun head seat (9) is provided with a placing groove corresponding to the eight groups of liquid suction gun heads (6).

6. A pipette tip rotatable refill gun as defined in claim 5 wherein: the bottom of one side of the liquid suction gun head (6) is fixedly connected with a plugboard (10), and one side of the inner wall of the placing groove is provided with a plugboard groove in clearance fit with the plugboard (10).

7. A pipette tip rotatable refill gun according to claim 2, wherein: the bottom sliding connection of middle part gear (703) has fixing base (11), the bottom of fixing base (11) and the bottom fixed connection of supporting box body (701) inner wall eight group's extension boards (12) of fixed surface fixedly connected with of fixing base (11), one side of extension board (12) extends to the bottom of transfer gear (704) and with transfer gear (704) sliding connection.

8. A pipette tip rotatable refill gun according to claim 2, wherein: one side at the top of the liquid-transfering gun body (1) is fixedly connected with a controller (13), and the controller (13) is electrically connected with a motor (702) through a wire.