CN219252643U - Accurate dripping device for reagent - Google Patents

Abstract

The utility model discloses a precise dripping device for a reagent, which comprises a dripping cylinder, wherein a piston rod penetrates through the top of the dripping cylinder, a disc is arranged at the top end of the piston rod, a piston disc is arranged at the bottom end of the piston rod close to the inner position of the dripping cylinder, an extrusion rod is arranged at the bottom center position of the piston disc, scale marks are arranged on the outer wall of one side of the dripping cylinder, a dripping pipe is arranged at the bottom center position of the dripping cylinder, a screw rod is connected at the top of the dripping cylinder close to one side of the piston rod through screw thread screwing, a limit head is arranged at the bottom end of the screw rod, and a turntable is arranged at the top of the screw rod. The accurate dripping device for the reagent realizes accurate adjustment of dripping amount through limiting the position of the limiting head on the moving position of the piston disc and under the indication of the scale marks, so that the accurate dripping can be conveniently and efficiently repeated quantitatively during dripping of the subsequent chemical reagents, and the use effect of the dripping device is improved.

Description

Accurate dripping device for reagent

Technical Field

The utility model relates to the technical field of reagent dripping devices, in particular to a precise reagent dripping device.

Background

At present, students in large institutions perform some comprehensive experiments, liquid reagents are dripped in the preparation of samples or the reaction process, the dripping of a small amount of liquid reagents by students in a short time is mainly performed through a dropper, the dripped amount cannot be accurately determined by the dropper, if the liquid reagents are dripped for a long time, a constant flow pump is needed, but the constant flow pump is high in price, and the mass use of the constant flow pump in the student experiments is not practical.

In order to realize precise dripping of reagents, chinese patent 'a simple liquid dripping device for laboratory' (patent number: 201420076797.9) can effectively solve the problems that the dripping amount of liquid reagents can not be precisely determined by dripping liquid reagents through a dropper in the current large-scale university and the price of the liquid reagents is high by means of a constant flow pump, simultaneously reduces the labor intensity of experimenters for dripping the liquid reagents for a long time, adjusts the speed and time of dripping the liquid reagents by adjusting a flow regulator, and determines the dripping amount by reading scale marks on a reagent bottle, thereby improving the accuracy of students in dripping the liquid reagents.

However, the reagent dripping device in the above patent needs to supply the reagent through the reagent bottle when dripping the reagent, and after the reagent in the reagent bottle is dripped, the reagent bottle needs to be taken down and then the reagent is filled, and the operation is more complicated, and is not suitable for convenient dripping and extracting of the reagent, and the existing reagent dripping is mostly extracted and dripped through the dropper, simple structure, and simple operation, but because the dropper needs to be manually extruded, the dripping amount is difficult to obtain accurate control, and the quantitative accurate dripping of the reagent can not be realized.

Disclosure of Invention

The utility model aims to provide a precise dripping device for a reagent, which solves the problems that the dripping device in the prior art can only realize dripping of the reagent, can not realize extraction of the reagent, can not realize convenient dripping of the reagent, is generally realized by a dropper, can not control the dripping amount, has poor precision and can not realize quantitative and precise dripping of the reagent.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a device is got to accurate dropwise with reagent, includes drips a section of thick bamboo, the top of driping a section of thick bamboo runs through there is the piston rod, the top of piston rod is provided with the disc, and the bottom of piston rod is close to the inside position department of driping a section of thick bamboo and is provided with the piston disc, the bottom central point department of piston disc is provided with the extrusion pole, be provided with the scale mark on the outer wall of one side of driping a section of thick bamboo, and the bottom central point department of driping a section of thick bamboo is provided with the drip pipe, the top of driping a section of thick bamboo is close to one side position department of piston rod and is connected with the screw rod through the screw thread spin, the bottom of screw rod is provided with the limit bit, and the top of screw rod is provided with the carousel, the top of driping a section of thick bamboo is close to the opposite side position department of piston rod.

Compared with the prior art, the utility model has the beneficial effects that: this accurate device of getting is got to accurate dropwise add that reagent was used realizes dripping the accurate regulation of getting the volume through the spacing of limit head to piston disc shift position and under the instruction of scale mark to can convenient high-efficient accurate the dripping of ration repeatedly be got when follow-up chemical industry reagent is got, improve the effect of getting the device use, through the pull of piston rod and the extrusion of elasticity gasbag ring, can realize two hand operation or single hand operation, the operation mode is various can supply the user to select, the operation is more convenient high-efficient.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a schematic view of the inner structure of the dripping cylinder of the present utility model;

FIG. 3 is a schematic view of the inner structure of the elastic air bag ring of the present utility model;

fig. 4 is a front view of the drip chamber of the present utility model.

In the figure: 1. a dripping barrel; 2. a piston rod; 3. a disc; 4. a piston disc; 5. an extrusion rod; 6. scale marks; 7. a drip tube; 8. a screw; 9. a positioning head; 10. a turntable; 11. a limit rod; 12. an elastic balloon ring; 13. a spring; 14. a connector; 15. and a connection hole.

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.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a precision drip device for reagent, including drip section of thick bamboo 1, drip section of thick bamboo 1 is hollow cylinder structure, be convenient for realize the storage of chemical industry reagent, and then realize the drip of chemical industry reagent, the top of drip section of thick bamboo 1 runs through there is piston rod 2, the top of piston rod 2 is provided with disc 3, and the bottom of piston rod 2 is close to the inside position department of drip section of thick bamboo 1 and is provided with piston disc 4, piston disc 4 is the piston motion in drip section of thick bamboo 1's inside, guarantee the leakproofness that piston disc 4 moved in drip section of thick bamboo 1, piston disc 4's bottom central point department is provided with extrusion pole 5, be provided with scale mark 6 on the outer wall of one side of drip section of thick bamboo 1, and drip section of thick bamboo 1's bottom central point department is provided with drip pipe 7, drip section of thick bamboo 1's top is close to the side position department of piston rod 2 and is connected with screw rod 8 through the screw thread twist, screw rod 8's bottom is provided with spacing head 9, the top of the screw rod 8 is provided with a turntable 10, an anti-slip groove is arranged on the outer wall of one side of the turntable 10, a limiting rod 11 is arranged at the position of the other side of the top of the dripping cylinder 1, which is close to the piston rod 2, the screw rod 8 and the limiting rod 11 penetrate through the disc 3 to realize the limiting movement of the disc 3, an elastic air bag ring 12 is arranged on the outer wall of one side of the dripping cylinder 1, the elastic air bag ring 12 is of a hollow annular structure and is convenient to be sleeved on the dripping cylinder 1, the elastic air bag ring 12 is convenient to be extruded, a spring 13 is arranged on the inner wall of one side of the elastic air bag ring 12, a connector 14 is arranged on the inner wall of one side of the elastic air bag ring 12, a connecting hole 15 is arranged at the position of one side of the outer wall of the dripping cylinder 1, which is close to the connector 14, the connector 14 is positioned in the connecting hole 15, the connector 14 is fixedly connected with the connecting hole 15 through glue to ensure that the dripping cylinder 1 is communicated with the elastic air bag ring 12, thereby realizing the flow of air

Working principle: when the drip tube is used, the position of the limiting head 9 is regulated according to the drip amount of chemical reagents, and accurate regulation is realized under the indication of the scale marks 6, the rotary disc 10 is rotated, the rotary disc 10 drives the screw rod 8 to rotate, the limiting head 9 at one end of the screw rod 8 moves in the drip tube 1, the maximum moving position of the piston disc 4 is limited by controlling the position of the limiting head 9, the drip tube 1 is held, the drip tube 7 is inserted into the chemical reagents, the disc 3 is pulled out by the limiting rod 11, the disc 3 drives the piston disc 4 to move in the drip tube 1 through the piston rod 2, negative pressure is formed in the drip tube 1, the chemical reagents penetrate through the drip tube 7 to enter the drip tube 1, the chemical reagents are quantitatively extracted, the disc 3 is reversely pushed, the chemical reagents in the drip tube 1 are pushed out in the moving process of the piston disc 4, the extruding rod 5 on the piston disc 4 is inserted into the drip tube 7, the chemical reagents are fully discharged out of the drip tube 7, when the two hands are inconvenient to operate, a user holds the drip tube 1 and holds the elastic ring 12, the elastic ring 13, the elastic ring 12 is compressed, the elastic ring 12 is pushed by the extruding ring 12, the elastic ring 12 is pushed by the elastic ring 12, the elastic ring is pushed by the elastic ring 12, and the elastic ring is air in the air, and the air is released, and the air is in the air bag 12.

To sum up: this accurate device of getting is got to accurate dropwise add that reagent was used through spacing head 9 to piston disc 4 shift position spacing and realize dripping the accurate regulation of volume under the instruction of scale mark 6 to can convenient high-efficient accurate the dripping of ration when follow-up chemical industry reagent is got, improve the effect of getting the device use of dripping, through the pull of piston rod 2 and the extrusion of elasticity gasbag ring 12, can realize two hand operation or single hand operation, the operation mode is various can be supplied the user to select, the operation is more convenient high-efficient.

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 (7)

1. The utility model provides a precision drip device that reagent was used, includes drips a section of thick bamboo (1), its characterized in that: the top of drip section of thick bamboo (1) is run through there is piston rod (2), the top of piston rod (2) is provided with disc (3), and the bottom of piston rod (2) is close to the inside position department of drip section of thick bamboo (1) and is provided with piston disc (4), the bottom central point department of piston disc (4) is provided with extrusion rod (5), be provided with scale mark (6) on the outer wall of one side of drip section of thick bamboo (1), and the bottom central point department of drip section of thick bamboo (1) is provided with drip tube (7), the top of drip section of thick bamboo (1) is close to one side position department of piston rod (2) and is connected with screw rod (8) through the screw thread spin, the bottom of screw rod (8) is provided with limit head (9), and the top of screw rod (8) is provided with carousel (10), the opposite side position department that the top of drip section of thick bamboo (1) is close to piston rod (2) is provided with gag lever post (11).

2. The precision dispensing device for a reagent of claim 1, wherein: an elastic air bag ring (12) is arranged on the outer wall of one side of the dripping cylinder (1), a spring (13) is arranged on the inner wall of one side of the elastic air bag ring (12), a connector (14) is arranged on the inner wall of one side of the elastic air bag ring (12), and a connecting hole (15) is formed in the outer wall of one side of the dripping cylinder (1) and close to the connector (14).

3. The precision dispensing device for a reagent of claim 1, wherein: the piston disc (4) moves in a piston manner in the dripping cylinder (1).

4. A precision dispensing device for a reagent according to claim 2, wherein: the dripping cylinder (1) is of a hollow cylinder structure, and the elastic air bag ring (12) is of a hollow annular structure.

5. The precision dispensing device for a reagent of claim 1, wherein: the screw rod (8) and the limiting rod (11) penetrate through the disc (3).

6. The precision dispensing device for a reagent of claim 1, wherein: an anti-skid groove is formed in the outer wall of one side of the rotary disc (10).

7. A precision dispensing device for a reagent according to claim 2, wherein: the connector (14) is located in the connecting hole (15), and the connector (14) is fixedly connected with the connecting hole (15) through glue.

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