CN220126250U

CN220126250U - Pipetting device for chemical experiments

Info

Publication number: CN220126250U
Application number: CN202321648673.9U
Authority: CN
Inventors: 朱传华
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-12-05
Anticipated expiration: 2033-06-27

Abstract

The utility model discloses a pipetting device for chemical experiments, which belongs to the technical field of chemical experiment operations and comprises a fixing frame, wherein the top of the fixing frame is fixedly connected with a protective shell, the inner side of the fixing frame is provided with a sliding component, one opposite side of the sliding component is fixedly connected with a positioning frame, the positioning frame and a positioning hole are arranged to provide a positioning function for pipettes used for the chemical experiments, the pipettes can be classified and placed for convenient distinguishing and taking by an experimenter, meanwhile, a stepping motor in a winding mechanism provides driving force to drive a winding roller on a rotating shaft to rotate, then winding and releasing work can be provided for a stay cord, the distance between the positioning frame and a solution box placed below can be adjusted, the solution in the solution box can be extracted, meanwhile, missed liquid in the pipettes can be collected, and portability and safety of the pipettes in use are improved.

Description

Pipetting device for chemical experiments

Technical Field

The utility model relates to the technical field of chemical experiment operation, in particular to a pipetting device for chemical experiments.

Background

The chemical experiment operation, especially the taking, storing, connecting and assembling of instruments, washing, etc. of the medicines in laboratory, mainly introduces the principle and steps to be followed in operation, and the steps should be strictly followed in specific experiment to prevent accidents or errors in experiment.

The existing pipetting device for chemical experiments has the following defects in the use process: 1. the pipetting device that uses is inconvenient to place and position control to lead to pipetting device to take place chaotic when using, lead to pipetting device's liquid taking mouth position to connect with other external objects and take place the pollution simultaneously, cause experimental detection data to change, 2, take place the drip easily at the in-process that draws and place the detection liquid, thereby lead to the liquid of pipetting device inside to cause extravagant, can cause the chemical reaction when different chemical liquids mix when serious, thereby cause the influence to experimental environment.

According to publication No.: the liquid transferring device for hydrogeological chemical examination provided by CN211936974U comprises a bearing frame, a gas transmission pipe, a rectangular block, a rectangular cavity, a rectangular plate, a cylinder, an exhaust pipe, a handle, a pipette, an inflator pump, a circular fixing block, an LED ultraviolet lamp, a conducting port, a filter plate, an air bag and an electromagnetic valve. The utility model has reasonable design, achieves the effect of automatic liquid suction through the convenient liquid-transferring dustproof structure, avoids the condition of ache of thumb caused by long-time work of staff, saves more time and labor, improves the liquid-transferring efficiency, simultaneously prevents dust and other impurities in the air from entering the inner cavity of the rectangular cavity from the conducting port, improves the quality of hydrogeology chemical examination, enables the air bag to bulge and prop against the inner side wall of the pipette through the convenient fixing sterilization structure, achieves the effect of convenient fixing, fills the gap in the pipette and the conducting port, achieves the sealing effect, and can sterilize the inner cavity of the pipette to achieve the sterilization effect.

According to the liquid transfer device for chemical experiments, the position of the liquid taking port is easy to infect in the use process, the liquid transfer device is not positioned, confusion of the liquid transfer device is easy to occur, liquid dripped by the liquid transfer device is not provided with recovery equipment, different chemical liquids are mixed, and the problem of influence on experimental environment is solved, so that the liquid transfer device for chemical experiments is provided.

Disclosure of Invention

The utility model aims to provide a pipetting device for chemical experiments, which can limit the pipetting device used in the chemical experiments, prevent the liquid taking port of the pipetting device from being infected, simultaneously position the pipetting device and orderly arrange the pipetting device, avoid the pipetting device from being mixed, facilitate the distinguishing and taking of experimenters, simultaneously provide a collecting function for the missing liquid of the pipetting device, avoid the mixing of different chemical liquids, reduce the pollution to experimental environment and solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pipetting device for chemistry experiments, includes the mount, the top fixedly connected with protection shell of mount, the inner chamber of protection shell is provided with winding mechanism, the inboard of mount is provided with sliding component, one side fixedly connected with locating frame in opposite directions of sliding component, a plurality of locating holes have been seted up on the surface of locating frame, the pipette has been placed to the inner chamber of locating hole, winding mechanism's surface winding has the stay cord, the other end of stay cord runs through the mount and passes through the fixed surface connection of connecting piece and locating frame.

Preferably, the winding mechanism comprises a stepping motor, the stepping motor is mounted at the top of the fixing frame, an output shaft of the stepping motor is fixedly connected with a rotating shaft, the other end of the rotating shaft is rotatably connected with the inner wall of the protective shell through a bearing, winding rollers are fixedly connected at two ends of the surface of the rotating shaft, and one end of the pull rope is wound on the surface of the winding rollers.

Preferably, the sliding assembly comprises a sliding groove, the sliding groove is arranged at the symmetrical position inside the fixing frame, the inner cavity of the sliding groove is fixedly connected with a positioning rod, the surface of the positioning rod is movably connected with a sliding block, and one side of the sliding block is fixedly connected with the side wall of the positioning frame.

Preferably, one side opposite to the positioning frame is fixedly connected with a limiting plate, and the surface of the limiting plate is attached to the outer wall of the fixing frame.

Preferably, the connecting piece comprises a fixed column, the fixed column is fixed on the surface of the positioning frame, the top of the fixed column is fixedly connected with a positioning ring, and the pull rope is wound on the surface of the positioning ring.

Preferably, a fixing seat is arranged at the lower position of the positioning frame, the surfaces of the fixing seat are sequentially and fixedly connected with a groove plate from left to right, and the inner cavity of the groove plate is clamped with a solution box.

Preferably, one end of the groove plate is fixedly connected with a positioning plate, and the box opening of the solution box corresponds to the liquid taking opening of the pipette.

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

1. the utility model provides a pipetting device for chemical experiments, which can provide a positioning effect for pipettes used for the chemical experiments by arranging a positioning frame and a positioning hole, can classify and place the pipettes used for facilitating the distinguishing and taking of experimenters, simultaneously provides a driving force for driving a winding roller on a rotating shaft to rotate by a stepping motor in a winding mechanism, can provide winding and releasing work for a pull rope, can adjust the distance between the positioning frame and a solution box placed below, can extract the solution in the solution box, can collect the missed liquid in the pipettes, and improves the portability and safety of the pipettes during use.

2. The utility model provides a pipetting device for chemical experiments, which can provide a limiting sliding effect for the moving position of a positioning frame through a sliding assembly, prevent the positioning frame from shaking in the moving process and enhance the stability of the positioning frame.

Drawings

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

FIG. 2 is a schematic view of the structure of the fixing frame and the winding mechanism of the utility model;

FIG. 3 is a schematic view of a winding mechanism and a positioning frame according to the present utility model;

fig. 4 is an enlarged view of the utility model at a in fig. 1.

Reference numerals in the drawings: 1. a fixing frame; 2. a protective shell; 3. a winding mechanism; 31. a stepping motor; 32. a rotating shaft; 33. a wind-up roll; 4. a sliding assembly; 41. a chute; 42. a positioning rod; 43. a slide block; 5. a positioning frame; 6. positioning holes; 7. a pipette; 8. a pull rope; 9. a connecting piece; 91. fixing the column; 92. a positioning ring; 10. a limiting plate; 11. a fixing seat; 12. a groove plate; 13. a solution box; 14. and (5) positioning the plate.

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.

The utility model provides a pipetting device for chemical experiments as shown in figures 1-4, which comprises a fixed frame 1, wherein the top of the fixed frame 1 is fixedly connected with a protective shell 2, the inner cavity of the protective shell 2 is provided with a winding mechanism 3, the inner side of the fixed frame 1 is provided with a sliding component 4, one side of the sliding component 4 opposite to the sliding component is fixedly connected with a positioning frame 5, the surface of the positioning frame 5 is provided with a plurality of positioning holes 6, the inner cavity of the positioning hole 6 is provided with a pipette 7, the surface of the winding mechanism 3 is wound with a pull rope 8, the other end of the pull rope 8 penetrates through the fixed frame 1 and is fixedly connected with the surface of the positioning frame 5 through a connecting piece 9, the positioning effect can be provided for the pipette 7 used for the chemical experiments through the arrangement of the positioning frame 5 and the positioning holes 6, and the used pipettes 7 can be classified and placed to be conveniently resolved and taken by experimenters.

The winding mechanism 3 includes step motor 31, step motor 31 installs the top at mount 1, step motor 31's output shaft fixedly connected with pivot 32, the other end of pivot 32 passes through the bearing and rotates with the inner wall of protecting crust 2 to be connected, the equal fixedly connected with wind-up roll 33 in both ends on pivot 32 surface, the one end winding of stay cord 8 is at the surface of wind-up roll 33, step motor 31 through winding mechanism 3 provides driving force and drives epaxial wind-up roll 33 of pivot 32 and rotate, then can provide the work of rolling and release to stay cord 8, just can adjust the distance between solution box 13 that locating frame 5 and below were placed, can draw the solution in the solution box 13, can collect the liquid that leaks in the pipette 7 simultaneously, portability and the security when improving pipette 7 and using.

The sliding component 4 comprises a sliding groove 41, the sliding groove 41 is formed in the inner side symmetrical position of the fixing frame 1, the inner cavity of the sliding groove 41 is fixedly connected with a positioning rod 42, the surface of the positioning rod 42 is movably connected with a sliding block 43, one side of the sliding block 43 is fixedly connected with the side wall of the positioning frame 5, the position of the positioning frame 5 can be provided with a limiting sliding effect through the sliding component 4, the positioning frame 5 is prevented from shaking in the moving process, and the stability of the positioning frame 5 is enhanced.

The locating frame 5 wherein relative one side fixedly connected with limiting plate 10, the surface of limiting plate 10 is laminated with the outer wall of mount 1, can provide spacing effect to locating frame 5 for locating frame 5 is more stable when removing.

The connecting piece 9 includes the fixed column 91, and the fixed column 91 is fixed on the surface of locating frame 5, and the top fixedly connected with holding ring 92 of fixed column 91, stay cord 8 winding are at the surface of holding ring 92, can make things convenient for stay cord 8 to fix to drive locating frame 5 and carry out the position movement.

The lower position of the positioning frame 5 is provided with a fixing seat 11, the surface of the fixing seat 11 is fixedly connected with a groove plate 12 from left to right in sequence, the inner cavity of the groove plate 12 is clamped with a solution box 13, one end of the groove plate 12 is fixedly connected with a positioning plate 14, the box opening of the solution box 13 corresponds to the liquid taking opening of the pipette 7, the positioning plate 14 and the groove plate 12 are arranged to provide a limiting effect on the solution box 13, the solution box 13 corresponds to the position of the pipette 7, the pipette 7 can extract solution in the solution box 13, meanwhile, missed liquid in the pipette 7 can be collected, and portability and safety of the pipette 7 in use are improved.

When the automatic liquid collecting device is specifically used, firstly, the solution box 13 is placed into the groove plate 12 for positioning, then the pipette 7 is correspondingly placed into the positioning hole 6 of the positioning frame 5, positioning effect can be provided for the pipette 7 used in a chemical experiment through setting the positioning frame 5 and the positioning hole 6, and the used pipette 7 can be classified and placed so as to be convenient for an experimenter to distinguish and take, then the stepping motor 31 in the winding mechanism 3 provides driving force to drive the winding roller 33 on the rotating shaft 32 for rotation, then the winding and releasing work can be provided for the pull rope 8, the distance between the positioning frame 5 and the solution box 13 placed below can be adjusted, the solution in the solution box 13 can be extracted, meanwhile, the liquid which is omitted in the pipette 7 can be collected, and the portability and the safety of the pipette 7 in use are improved.

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. Pipetting device for chemistry experiments, including mount (1), its characterized in that: the top of the fixing frame (1) is fixedly connected with a protective shell (2), the inner cavity of the protective shell (2) is provided with a winding mechanism (3), the inner side of the fixing frame (1) is provided with a sliding component (4), one side of the sliding component (4) opposite to the sliding component is fixedly connected with a positioning frame (5), a plurality of locating holes (6) have been seted up on the surface of locating frame (5), pipette (7) have been placed to the inner chamber of locating hole (6), the surface winding of rolling mechanism (3) has stay cord (8), the other end of stay cord (8) runs through mount (1) and through connecting piece (9) and the fixed surface of locating frame (5) is connected.

2. The pipetting device for chemical experiments as recited in claim 1 wherein: the winding mechanism (3) comprises a stepping motor (31), the stepping motor (31) is arranged at the top of the fixing frame (1), an output shaft of the stepping motor (31) is fixedly connected with a rotating shaft (32), the other end of the rotating shaft (32) is rotatably connected with the inner wall of the protective shell (2) through a bearing, two ends of the surface of the rotating shaft (32) are fixedly connected with winding rollers (33), and one end of a pull rope (8) is wound on the surface of each winding roller (33).

3. A pipetting device for chemical experiments as recited in claim 2 wherein: the sliding assembly (4) comprises a sliding groove (41), the sliding groove (41) is formed in a symmetrical position on the inner side of the fixing frame (1), a positioning rod (42) is fixedly connected to an inner cavity of the sliding groove (41), a sliding block (43) is movably connected to the surface of the positioning rod (42), and one side of the sliding block (43) is fixedly connected with the side wall of the positioning frame (5).

4. A pipetting device for chemical experiments as recited in claim 3 wherein: and one side opposite to the positioning frame (5) is fixedly connected with a limiting plate (10), and the surface of the limiting plate (10) is attached to the outer wall of the fixing frame (1).

5. The pipetting device for chemical experiments as recited in claim 1 wherein: the connecting piece (9) comprises a fixing column (91), the fixing column (91) is fixed on the surface of the positioning frame (5), a positioning ring (92) is fixedly connected to the top of the fixing column (91), and the pull rope (8) is wound on the surface of the positioning ring (92).

6. The pipetting device for chemical experiments as recited in claim 1 wherein: the fixing seat (11) is arranged at the lower position of the positioning frame (5), the surfaces of the fixing seat (11) are sequentially and fixedly connected with a groove plate (12) from left to right, and a solution box (13) is clamped in the inner cavity of the groove plate (12).

7. The pipetting device for chemical experiments as recited in claim 6 wherein: one end of the groove plate (12) is fixedly connected with a positioning plate (14), and the box opening of the solution box (13) corresponds to the liquid taking opening of the pipette (7).