CN214553647U

CN214553647U - Novel pipette model

Info

Publication number: CN214553647U
Application number: CN202120468441.XU
Authority: CN
Inventors: 田洪明
Original assignee: Jinan Shaoyuan Medical Technology Co ltd
Current assignee: Jinan Shaoyuan Medical Technology Co ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-11-02
Anticipated expiration: 2031-03-04

Abstract

The utility model discloses a novel pipette model, including graduated flask, pipette, fluid-discharge tube, control ball, blast pipe, motor and valve member, the bottom movable mounting of graduated flask has the thread bush, and the thread bush runs through the graduated flask setting to fixedly connected with pipette on the inner wall of thread bush, the top of graduated flask and the bottom fixed connection of fluid-discharge tube, and the fluid-discharge tube runs through the graduated flask setting, fixedly connected with blast pipe on the lateral wall of fluid-discharge tube, and fixedly connected with motor on the inner wall of blast pipe to fixedly connected with fan blade group on the output shaft of motor, on the blast pipe fixed mounting fixed bolster, and fixed bolster fixed connection is on the fluid-discharge tube to the upper end fixed mounting of fluid-discharge tube has the valve member. This novel pipette model is provided with anti-return structure, effectively prevents liquid refluence, and inside turbofan mechanism that is provided with simultaneously can increase the inside negative pressure of device, promotes the imbibition effect.

Description

Novel pipette model

Technical Field

The utility model relates to a pipette technical field specifically is a novel pipette model.

Background

The pipette is a liquid storage device, which can accurately suck a certain volume of liquid and move the sucked liquid into a target container, and an important biochemical instrument of the pipette is widely applied to places such as laboratories and hospitals.

However, the air outlet of the existing pipette is sucked by the suction ear ball, the purpose of sucking the solvent sample is achieved by manufacturing negative pressure, and in the using process, if the air leakage condition of the air suction port occurs, the solvent sample is easy to flow back, the sampling is not smooth, or the solvent sample is sprinkled on the ground to pollute the environment.

In order to solve the problems, innovative design based on the original pipette is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel pipette model to solve above-mentioned background art and carry the pipette that has and pass through the auricle ball and absorb the pipette gas outlet, through making the negative pressure, reach the purpose of absorbing the solvent sample, in the use, if the air leakage situation appears in the induction port, cause the solvent sample backward flow very easily, the sample is not smooth, perhaps spills the problem of polluted environment on the ground.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel pipette model, includes graduated flask, pipette, fluid-discharge tube, control ball, blast pipe, motor and valve member, the bottom movable mounting of graduated flask has the thread bush, and the thread bush runs through the graduated flask setting to fixedly connected with pipette on the inner wall of thread bush, the top of graduated flask and the bottom fixed connection of fluid-discharge tube, and the fluid-discharge tube runs through the graduated flask setting, fixedly connected with blast pipe on the lateral wall of fluid-discharge tube, and fixedly connected with motor on the inner wall of blast pipe to fixedly connected with fan blade group on the output shaft of motor, on the blast pipe fixed mounting fixed bolster, and fixed bolster fixed connection is on the fluid-discharge tube to the upper end fixed mounting of fluid-discharge tube has the valve member.

Preferably, the bottom end of the threaded sleeve is fixedly connected with a rotating wheel, the threaded sleeve is in threaded connection with the measuring cylinder, and the rotating wheel is fixedly connected with the pipette.

Preferably, the inner wall of the liquid discharge pipe is fixedly connected with 2 fixing blocks, and the fixing blocks are symmetrically arranged, and a through hole is formed in the center of each fixing block.

Preferably, the inner wall of each fixed block is provided with a control ball in a fitting manner, the control balls are arranged among the 2 fixed blocks, holes are formed in the control balls, and the axes of the holes in the control balls are perpendicular to each other.

Preferably, the outer wall of control ball and the tip fixed connection of connecting rod, and the connecting rod runs through fluid-discharge tube and limiting plate setting to the bulge loop that sets up on the connecting rod outer wall constitutes pivoted block structure with the limiting plate, is provided with mutually perpendicular's rectangular shape lug on the limiting plate lateral wall moreover, and limiting plate fixed mounting is at the top of graduated flask simultaneously.

Preferably, the fan blade group and the exhaust pipe are coaxially arranged, and the fan blade group is composed of 2 fan blades with different sizes.

Compared with the prior art, the beneficial effects of the utility model are that: the novel pipette model is provided with an anti-backflow structure, liquid can be effectively prevented from flowing backwards, and meanwhile, a turbofan mechanism is arranged inside the novel pipette model, so that negative pressure inside the device can be increased, and the liquid suction effect is improved;

1. the pipette is fixedly arranged on the inner wall of the threaded sleeve, and the threaded sleeve is in threaded connection with the bottom end of the measuring cylinder, so that when an operator rotates the rotating wheel fixedly connected with the threaded sleeve, the threaded sleeve can lift along the measuring cylinder, the height of the port of the pipette in the measuring cylinder is changed, and a backflow prevention structure is formed;

2. utilize the connecting rod rotation control ball, and the hole on the control ball can be with blast pipe and the inside intercommunication of graduated flask, and the control ball is stopped up the inside of flowing back pipe simultaneously, drives the fan blade group through the motor and rotates, and the fan blade group is outside with the inside gas escape of graduated flask, makes the inside pressure of graduated flask decline.

Drawings

FIG. 1 is a schematic view of the overall external structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the measuring cylinder of the present invention;

FIG. 3 is a schematic view of the internal structure of the exhaust pipe of the present invention;

FIG. 4 is the schematic view of the installation structure of the thread bushing of the present invention

FIG. 5 is the schematic view of the installation structure of the connecting rod of the present invention

Fig. 6 is a schematic view of the control ball mounting structure of the present invention.

In the figure: 1. a measuring cylinder; 2. a threaded sleeve; 3. a pipette; 4. a rotating wheel; 5. a liquid discharge pipe; 6. a fixed block; 7. a control ball; 8. a connecting rod; 9. a limiting plate; 10. an exhaust pipe; 11. a motor; 12. a fan blade group; 13. fixing a bracket; 14. a valve assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a novel pipette model, including graduated flask 1, pipette 3, fluid-discharge tube 5, control ball 7, blast pipe 10, motor 11 and valve member 14, the bottom movable mounting of graduated flask 1 has thread bush 2, and thread bush 2 runs through 1 setting of graduated flask, and fixedly connected with pipette 3 on the inner wall of thread bush 2, the top of graduated flask 1 and the bottom fixed connection of fluid-discharge tube 5, and fluid-discharge tube 5 runs through 1 setting of graduated flask, fixedly connected with blast pipe 10 on the lateral wall of fluid-discharge tube 5, and fixedly connected with motor 11 on the inner wall of blast pipe 10, and fixedly connected with fan blade group 12 on the output shaft of motor 11, on blast pipe 10 fixed mounting fixed bolster 13, and fixed bolster 13 fixed connection is on fluid-discharge tube 5, and the upper end fixed mounting of fluid-discharge tube 5 has valve member 14.

The bottom fixedly connected with runner 4 of thread bush 2, and be threaded connection between thread bush 2 and the graduated flask 1, runner 4 and pipette 3 fixed connection moreover make thread bush 2 can drive pipette 3 and remove.

Fixedly connected with fixed block 6 on the inner wall of fluid-discharge tube 5, and fixed block 6 symmetry is provided with 2 to the through-hole has been seted up to the center department of fixed block 6, constitutes control ball 7's limit structure.

The inner wall of the fixing block 6 is provided with a control ball 7 in a fitting manner, the control ball 7 is arranged between the 2 fixing blocks 6, the control ball 7 is provided with holes, and the axes of the holes in the control ball 7 are perpendicular to each other, so that the control ball 7 can rotate on the fixing block 6.

The outer wall of control ball 7 and the tip fixed connection of connecting rod 8, and connecting rod 8 runs through fluid-discharge tube 5 and the setting of limiting plate 9 to the bulge loop that sets up on the outer wall of connecting rod 8 constitutes pivoted block structure with limiting plate 9, is provided with mutually perpendicular's rectangular shape lug on the limiting plate 9 lateral wall moreover, and limiting plate 9 fixed mounting makes connecting rod 8 can drive control ball 7 and rotate at the top of graduated flask 1 simultaneously.

The fan blade set 12 is coaxially arranged with the exhaust pipe 10, and the fan blade set 12 is composed of 2 fan blades with different sizes, so that the exhaust effect is enhanced.

The working principle is as follows: in using the new pipette model, and referring first to fig. 1-6, the user inserts the bottom end of the pipette 3 into the liquid to be aspirated, then the connecting rod 8 is rotated by 90 degrees by hand, so that the end part of the connecting rod 8 is tightly attached to the lug in the middle of the limiting plate 9 and is not pressed, the connecting rod 8 drives the control ball 7 to synchronously rotate, the exhaust pipe 10 is communicated with the inside of the measuring cylinder 1 by utilizing the hole on the control ball 7, and the inside of the liquid discharge pipe 5 is blocked, the motor 11 is started, the fan blade group 12 arranged on the output shaft of the motor 11 synchronously rotates, the fan blade group 12 discharges the gas in the measuring cylinder 1 through the exhaust pipe 10, the pressure in the measuring cylinder 1 is reduced, the pressure difference is formed between the inside and the outside of the measuring cylinder 1, the liquid to be sucked is pressed into the measuring cylinder 1 through the pipette 3 by the external atmospheric pressure, when the liquid level in the measuring cylinder 1 reaches the value above the required value, the motor 11 is turned off;

referring to fig. 1-6, after the motor 11 is turned off, the fan blade set 12 does not rotate any more, at this time, the outside air enters the measuring cylinder 1 through the exhaust pipe 10, so that the internal and external pressures of the measuring cylinder 1 are equal, at this time, the pipette 3 is lifted out of the liquid to be sucked, the liquid part in the measuring cylinder 1, which is higher than the port of the pipette 3, flows out through the pipette 3, then the rotating wheel 4 is rotated clockwise, the rotating wheel 4 drives the threaded sleeve 2 to rotate, the threaded sleeve 2 and the pipette 3 will descend along the measuring cylinder 1, so that the liquid in the measuring cylinder 1 continuously flows out, when the liquid level of the measuring cylinder 1 is aligned with the required scale value, the rotating wheel 4 is stopped, then the connecting rod 8 is rotated, the end part of the connecting rod 8 is tightly attached to the bump at the top of the limiting plate 9, the connecting rod 8 drives the control ball 7 to rotate, the control ball 7 connects the discharge pipe 5 with the inside of the measuring cylinder 1, blocks the exhaust pipe 10, and then the device is inverted, the liquid in the measuring cylinder 1 flows into the drain pipe 5, the outlet of the drain pipe 5 is aligned with the target container, and finally the valve assembly 14 is opened, and the liquid flows out from the outlet of the drain pipe 5 into the container.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a novel pipette model, includes graduated flask (1), pipette (3), fluid-discharge tube (5), control ball (7), blast pipe (10), motor (11) and valve module (14), its characterized in that: the utility model discloses a measuring cylinder, including graduated flask, screwed cap (1), liquid-discharge tube (5), exhaust pipe (5), fixed connection has blast pipe (10) on the lateral wall of liquid-discharge tube (5), and fixedly connected with motor (11) on the inner wall of blast pipe (10) to fixedly connected with fan blade group (12) on the output shaft of motor (11), on blast pipe (10) fixed mounting fixed bolster (13), and fixed bolster (13) fixed connection is on liquid-discharge tube (5) to the upper end fixed mounting of liquid-discharge tube (5) has valve member (14).

2. The novel pipette model of claim 1, wherein: the bottom end of the threaded sleeve (2) is fixedly connected with a rotating wheel (4), the threaded sleeve (2) is in threaded connection with the measuring cylinder (1), and the rotating wheel (4) is fixedly connected with the pipette (3).

3. The novel pipette model of claim 1, wherein: the inner wall of the liquid discharge pipe (5) is fixedly connected with fixing blocks (6), the fixing blocks (6) are symmetrically provided with 2 fixing blocks, and a through hole is formed in the center of each fixing block (6).

4. A novel pipette model according to claim 3, characterized in that: the inner wall of the fixing block (6) is provided with a control ball (7) in a fitting manner, the control ball (7) is arranged between the 2 fixing blocks (6), the control ball (7) is provided with a hole, and the axis of the hole in the control ball (7) is perpendicular to the axis of the hole.

5. The novel pipette model of claim 4, wherein: the outer wall of control ball (7) and the tip fixed connection of connecting rod (8), and connecting rod (8) run through fluid-discharge tube (5) and limiting plate (9) setting to the bulge loop that sets up on connecting rod (8) outer wall constitutes pivoted block structure with limiting plate (9), is provided with mutually perpendicular's rectangular shape lug moreover on limiting plate (9) lateral wall, and limiting plate (9) fixed mounting is at the top of graduated flask (1) simultaneously.

6. The novel pipette model of claim 1, wherein: the fan blade group (12) and the exhaust pipe (10) are coaxially arranged, and the fan blade group (12) is composed of 2 fan blades with different sizes.