CN211677801U

CN211677801U - Multichannel quantitative solution sucking device

Info

Publication number: CN211677801U
Application number: CN201921121656.3U
Authority: CN
Inventors: 杨徐康; 李眉; 郭小敏
Original assignee: Mingcheng Tengde Testing Service Fuzhou Co ltd
Current assignee: Mingcheng Tengde Testing Service Fuzhou Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-10-16
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a device for quantitatively absorbing solution by multiple channels in the technical field of detection and analysis, which comprises a shell, a piston plate, a limit table, a driving component and a positioning component, and the utility model realizes the position adjustment of the limit table by moving a regulating plate and moving the limit table edge by a regulating rod, and then realizes the upper limit position adjustment of the piston plate by fixing the position of the positioning component; the pressing plate is pressed down manually, so that the piston moves down to the lower limit position, then the pressing plate is loosened, and the pressing plate and the piston gradually move up under the action of the spring to suck the solution; when absorbing solution at every turn, only need with the spacing platform department of piston plate movable plate can to make the solution volume of absorbing at every turn make fixed unchangeable, effectively avoid absorbing solution at every turn and all need observe scale mark scheduling problem, it is more convenient to use.

Description

Multichannel quantitative solution sucking device

Technical Field

The utility model relates to a detection and analysis technical field specifically is a solution device is absorb to multichannel ration.

Background

In biochemical analysis tests or experiments, a pipettor is usually used to help a laboratory technician quantitatively suck and sample liquid samples, wherein the pipettor is also called a pipette gun, and is a device for quantitatively transferring liquid. In conducting analytical testing studies, small or minute amounts of liquid are typically removed using a pipette.

Pipettes can be divided into gas piston pipettes and external piston pipettes according to the principle; the gas piston type pipettor is mainly used for standard pipetting, and the external piston type pipettor is mainly used for treating special liquids such as volatile liquid, easy corrosion and viscous liquid; according to the channel number, can divide into single channel pipettor and multichannel pipettor, when needs carry out the sample loading of batches, arrange the application of sample object on test-tube rack or tray, use the sample loading of completion batch that the multichannel pipettor can be quick.

However, when the existing pipettor sucks the solution each time, the external scale lines need to be observed to determine the amount of the sucked solution, the sucking amount is required to reach a fixed amount each time, and the scale lines need to be observed each time under the condition of more sucking times, so that the pipettor is inconvenient to use.

Based on this, the utility model designs a device of solution is absorb to multichannel ration to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a solution's device is absorb to multichannel ration to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a device of solution is absorb to multichannel ration, which comprises a housin, the inner chamber lower part of casing evenly is provided with a plurality of piston chambeies, be fixed with fixed pipe in the middle of the bottom surface in piston chamber, the straw has been pegged graft in the fixed pipe, the upper portion in piston chamber is provided with annular spacing platform, the top surface bilateral symmetry of spacing platform is fixed with the regulation pole, the piston chamber is stretched out on the top of a plurality of regulation poles, and be fixed with same regulating plate, the inner chamber lateral wall sliding connection of regulating plate and casing, and both ends are provided with locating component, be provided with the piston board in the piston chamber, be fixed with the carriage release lever in the middle of the top surface of piston board, spacing platform and regulating plate are passed on the top of a plurality.

Preferably, the drive assembly comprises two arc-shaped plates which are symmetrically fixed on the top surface of the shell, the circle centers of the two arc-shaped plates coincide with the center of the top surface of the shell, a limiting plate is fixed at the top end, the top end of the moving rod is located between the two arc-shaped plates and is fixed with a circular pressing plate, the pressing plate is slidably connected with the inner side surfaces of the arc-shaped plates, a spring is arranged in the middle of the bottom surface of the pressing plate and is connected with the top surface of the shell through the spring, pressing rods are symmetrically fixed on the two sides of the bottom surface of the pressing plate, and the bottom ends of the.

Preferably, locating component is including being fixed in the screw shaft at regulating plate both ends, and the lateral wall of casing corresponds the position and is provided with the adjustment tank along vertical direction, and the adjustment tank is passed to the outside end of screw shaft to threaded connection has set nut.

Preferably, the outer side end of the threaded shaft is fixed with a fixing plate, one end of each fixing plate extends outwards, a connecting plate is fixed between the extending ends, and the connecting plate is connected with the outer side wall of the shell in a sliding mode.

Preferably, the other end of the fixing plate is fixed with an indicating needle, and the outer side wall of the shell is correspondingly provided with scale marks.

Preferably, a communication groove is formed in the middle of the adjusting plate, the moving plate is located above the communication groove, and the length and the width of the moving plate are smaller than those of the communication groove correspondingly.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model realizes the position adjustment of the limit table by moving the adjusting plate and moving the limit table edge by the adjusting rod, and then realizes the upper limit position adjustment of the piston plate by fixing the position of the positioning component; when the liquid sucking device is used, the pressing plate is pressed down manually, the piston is driven to move downwards to the lower limit position through the pressing rod, the moving plate, the moving rod and the like, then the suction pipe is inserted into the solution, after the pressing plate is loosened, the pressing plate gradually returns to the original position under the action of the spring, and the piston plate is driven to move upwards to suck the solution, so that the operation is simple and convenient; when absorbing solution at every turn, only need with the spacing platform department of piston plate movable plate can to make the solution volume of absorbing at every turn make fixed unchangeable, effectively avoid absorbing solution at every turn and all need observe scale mark scheduling problem, it is more convenient to use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the positioning assembly of the present invention;

fig. 3 is a schematic structural view of the fixing plate of the present invention;

fig. 4 is a schematic structural view of the pressing plate of the present invention in a free state;

fig. 5 is a schematic structural diagram of the moving plate and the adjusting plate of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-shell, 101-piston cavity, 102-fixed tube, 103-suction tube, 104-arc plate, 105-limit plate, 106-adjusting groove, 2-piston plate, 201-moving rod, 202-moving plate, 203-pressure rod, 204-pressure plate, 3-limit table, 301-adjusting rod, 302-adjusting plate, 303-threaded shaft, 304-positioning nut and 305-fixing plate.

Detailed Description

The technical solution 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, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Example one

Referring to the drawings, the utility model provides a technical scheme: the utility model provides a device of solution is absorb to multichannel ration, which comprises a housin 1, the inner chamber lower part of casing 1 evenly is provided with a plurality of piston chambeies 101, be fixed with fixed pipe 102 in the middle of the bottom surface of piston chamber 101, the suction pipe 103 has been pegged graft in fixed pipe 102, the upper portion of piston chamber 101 is provided with annular spacing platform 3, the top surface bilateral symmetry of spacing platform 3 is fixed with regulation pole 301, piston chamber 101 is stretched out on the top of a plurality of regulation poles 301, and be fixed with same regulating plate 302, regulating plate 302 and casing 1's inner chamber lateral wall sliding connection, and both ends are provided with locating component, be provided with piston plate 2 in the piston chamber 101, be fixed with carriage release lever 201 in the middle of piston plate 2's the top surface, spacing platform 3 and regulating plate 302 are passed on the top of a plurality of carriage release levers 201.

The drive assembly comprises two arc plates 104 symmetrically fixed on the top surface of the shell 1, the circle centers of the two arc plates 104 coincide with the center of the top surface of the shell 1, a limiting plate 105 is fixed at the top end, the top end of the moving rod 201 is located between the two arc plates 104 and is fixed with a circular pressing plate 204, the pressing plate 204 is slidably connected with the inner side surface of the arc plate 104, a spring is arranged in the middle of the bottom surface, the pressing plate is connected with the top surface of the shell 1 through the spring, pressing rods 203 are symmetrically fixed on the two sides of the bottom surface of the pressing plate 204, the bottom ends of the pressing rods 203 extend into the shell 1 and are fixedly connected with the.

The positioning assembly comprises a threaded shaft 303 fixed at two ends of the adjusting plate 302, an adjusting groove 106 is arranged on the corresponding position of the side wall of the shell 1 along the vertical direction, the outer end of the threaded shaft 303 penetrates through the adjusting groove 106, and a positioning nut 304 is connected with the threaded shaft in a threaded manner.

The working principle of the embodiment is as follows: the adjusting plate 302 is driven to move by moving the threaded shaft 303 along the moving groove, the limiting table 3 is moved by the adjusting rod 301, and the position of the limiting table 3 is adjusted, so that the upper limit position of the piston plate 2 is adjusted, and before the piston plate is used, the position of the limiting table 3 is adjusted according to actual needs, so that the maximum displacement of the piston plate 2 is limited; after the adjustment is finished, the positioning nut 304 is screwed down, so that the positions of the adjusting plate 302, the adjusting rod 301, the limiting table 3 and the like are fixed, and the positioning is simple and convenient; when the device is used, the pressing plate 204 is pressed down manually, the piston is driven to move downwards to the lower limit position through the pressing rod 203, the moving plate 202, the moving rod 201 and the like, then the suction pipe 103 is inserted into a solution, after the pressing plate 204 is released, the pressing plate 204 gradually returns to the original position under the action of the spring, and the piston plate 2 is driven to move upwards to suck the solution; when absorbing solution at every turn, only need with the spacing platform 3 departments of piston board 2 movable plate 202 can to make the solution volume of absorbing at every turn make fixed unchangeable, effectively avoid absorbing at every turn solution and all need observe scale mark scheduling problem, it is more convenient to use.

Example two

On the basis of the first embodiment, the outer side end of the threaded shaft 303 is fixed with the fixing plates 305, one end of each of the two fixing plates 305 extends outwards, a connecting plate is fixed between the extending ends, and the connecting plate is connected with the outer side wall of the shell 1 in a sliding manner; make two threaded shaft 303 fixed through connecting plate and fixed plate 305 to make even threaded shaft 303 can remove simultaneously, be convenient for adjust spacing platform 3's position, simultaneously through fixed plate 305, prevent that set nut 304 from breaking away from the circumstances such as with threaded shaft 303 after loosening unexpectedly.

An indicator needle is fixed at the other end of the fixing plate 305, and scale marks are correspondingly arranged on the outer side wall of the shell 1; numerical value on the scale mark can directly set up to the amount of movement of spacing platform 3, also can convert into piston plate 2 through the calculation and be located spacing platform 3 department time moral solution volume of inhaling, when adjusting spacing platform 3's position through removal fixed plate 305 and threaded shaft 303, through pointer and scale mark, the solution volume of inhaling after the understanding regulation that can be clear, convenience of customers adjusts according to actual need.

EXAMPLE III

On the basis of the first embodiment, a communication groove is formed in the middle of the adjusting plate 302, the moving plate 202 is located above the communication groove, and the length and the width of the moving plate 202 are both correspondingly smaller than those of the communication groove; the moving plate 202 can pass through the communication groove, so that the adjusting plate 302 does not cause movement obstruction and the like of the moving plate 202 when the adjusting plate 302 moves.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a device of solution is absorb to multichannel ration, includes the casing, its characterized in that: the lower part of the inner cavity of the shell is uniformly provided with a plurality of piston cavities, the middle of the bottom surface of each piston cavity is fixedly provided with a fixed pipe, a suction pipe is inserted in each fixed pipe, the upper part of each piston cavity is provided with an annular limiting table, adjusting rods are symmetrically fixed on two sides of the top surface of each limiting table, the top ends of the adjusting rods extend out of the piston cavities and are fixedly provided with the same adjusting plate, each adjusting plate is in sliding connection with the side wall of the inner cavity of the shell, two ends of each adjusting plate are provided with positioning assemblies, a piston plate is arranged in each piston cavity, a moving rod is fixed in the middle of the top surface of each piston plate, the top ends of the moving rods penetrate through the limiting tables and the adjusting plates;

the driving assembly comprises two arc-shaped plates which are symmetrically fixed on the top surface of the shell, the circle centers of the two arc-shaped plates coincide with the center of the top surface of the shell, a limiting plate is fixed at the top end of the driving assembly, the top end of the moving rod is located between the two arc-shaped plates and is fixed with a circular pressing plate, the pressing plate is connected with the inner side surfaces of the arc-shaped plates in a sliding mode, a spring is arranged in the middle of the bottom surface of the pressing plate and is connected with the top surface of the shell through the spring, pressing rods are symmetrically fixed on the two sides of the bottom surface of the pressing plate, and the.

2. The multi-channel quantitative solution sucking device according to claim 1, wherein: the locating component comprises a threaded shaft fixed at two ends of an adjusting plate, an adjusting groove is formed in the corresponding position of the side wall of the shell along the vertical direction, the outer side end of the threaded shaft penetrates through the adjusting groove, and the threaded shaft is connected with a locating nut in a threaded mode.

3. The multi-channel quantitative solution sucking device according to claim 2, wherein: the outer side end of the threaded shaft is fixed with a fixing plate, one ends of the two fixing plates extend outwards, a connecting plate is fixed between the extending ends, and the connecting plate is connected with the outer side wall of the shell in a sliding mode.

4. The device for multi-channel quantitative suction of solution according to claim 3, characterized in that: the other end of the fixed plate is fixed with an indicating needle, and the outer side wall of the shell is correspondingly provided with scale marks.

5. The multi-channel quantitative solution sucking device according to claim 1, wherein: the middle of regulating plate is provided with the intercommunication groove, the movable plate is located the top in intercommunication groove, and the length and the width of movable plate all correspond and are less than the length and the width in intercommunication groove.