CN219299498U

CN219299498U - Liquid pumping device for laboratory

Info

Publication number: CN219299498U
Application number: CN202320242636.1U
Authority: CN
Inventors: 郑元彬; 郑按彰; 郑惠娟; 郑启皆; 杨松珍
Original assignee: Guangzhou Taimo Biomedicine Purification Engineering Co ltd
Current assignee: Guangzhou Taimo Biomedicine Purification Engineering Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-07-04
Anticipated expiration: 2033-02-16

Abstract

The utility model belongs to the technical field of laboratory liquid suction equipment, and discloses a laboratory liquid suction device which comprises a sucking pump, wherein the lower end of the sucking pump is fixedly connected with a sealing cover, the sucking pump penetrates to the lower side of the sealing cover, the lower end cover of the sealing cover is connected with a transparent cylinder, the upper end of the sealing cover is fixedly connected with a liquid suction pipe, the liquid suction pipe penetrates to the lower side of the sealing cover, a cleaning piston is inserted into the liquid suction pipe, the tail part of the liquid suction pipe is blocked with a limiting seat, the lower end of the limiting seat is buckled at the upper end of the sealing cover, the liquid suction pipe comprises a dry pipe and a branch pipe, the dry pipe and the branch pipe are fixedly connected into a whole, the cleaning piston comprises an elastic conical plug and a plastic rope, and the elastic conical plug is fixedly connected with the plastic rope. When the dirt inside the liquid suction pipe needs to be cleaned, the cleaning piston is plugged into the other end of the liquid suction pipe and then pulled outwards, so that the dirt inside the liquid suction pipe is scraped, and the cleaning of the dirt inside the liquid suction pipe is facilitated.

Description

Liquid pumping device for laboratory

Technical Field

The utility model belongs to the technical field of laboratory liquid extraction equipment, and particularly relates to a laboratory liquid extraction device.

Background

Laboratory pumps have a relatively small volume, a relatively short distance, and a relatively small negative pressure, and are usually made by a small flexible hose that draws the fluid into a container.

Because the experiment is comparatively many to like the kind, easily forms various impurity in the straw, because the inner space of straw is long and narrow, inside spot impurity is difficult to clear up to cause the inconvenient problem of clearing up of the pipeline of conventional laboratory drawing liquid device.

For this purpose, we propose a laboratory liquid extraction device to solve the above problems.

Disclosure of Invention

The utility model aims to solve the problem that a pipeline of a conventional laboratory liquid extracting device is inconvenient to clean in the prior art, and provides the laboratory liquid extracting device.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a laboratory is with drawing liquid device, includes the aspiration pump, the lower extreme fixedly connected with sealed lid of aspiration pump, the aspiration pump runs through to the downside of sealed lid, the lower extreme of sealed lid has connect transparent jar, the upper end fixedly connected with drawing liquid pipe of sealed lid, the drawing liquid pipe runs through to the sealed downside of lid, the clearance piston has been inserted to the inside of drawing liquid pipe.

When the stains inside the liquid suction pipe need to be cleaned, the cleaning piston is plugged into the other end of the liquid suction pipe and then pulled outwards, the stains inside the liquid suction pipe are scraped, and impurities inside the liquid suction pipe are cleaned conveniently.

Preferably, the tail part of the liquid suction pipe is blocked with a limiting seat, and the lower end of the limiting seat is buckled at the upper end of the sealing cover.

The limiting seat is used for blocking the tail part of the liquid suction pipe, so that the movable range of the cleaning piston is conveniently limited.

Preferably, the liquid suction pipe comprises a main pipe and a branch pipe, and the main pipe and the branch pipe are fixedly connected into a whole.

The tail of the main pipe is blocked by the cleaning piston, so that negative pressure acts on the main pipe through the branch pipe, and liquid is extracted through the main pipe, thereby facilitating liquid extraction of the liquid extraction pipe.

Preferably, the cleaning piston comprises an elastic conical plug and a plastic rope, and the elastic conical plug is fixedly connected with the plastic rope.

The elastic conical plug is pushed into the main pipe by the plastic rope, the thrust is kept to continue by combining the elastic force of the plastic rope with the reaction force of the inner wall of the main pipe, so that the elastic conical plug is pushed along the inside of the main pipe and then pulled back, and the sewage is discharged outwards by the elastic conical plug, thereby facilitating the cleaning of the operation cleaning piston.

Preferably, the cleaning piston further comprises a push-pull button, and the push-pull button is fixedly connected to one end of the plastic rope, which is opposite to the elastic conical plug.

The plastic rope is convenient to operate manually through the push-pull button.

Preferably, the limit seat comprises a baffle shell and a spring buckle, and the spring buckle is symmetrically and fixedly connected to the lower end of the baffle shell.

The elastic buckle is pressed inwards, so that the elastic buckle is separated from the sealing cover, otherwise, the limiting seat is reinstalled, and the limiting seat is convenient to install or detach.

Preferably, the limit seat further comprises a button, and the button is fixedly connected to the outer part of the elastic buckle.

The manual button pressing acts on the elastic buckle to deform the elastic buckle inwards, so that the elastic buckle is convenient to operate manually.

In summary, the technical effects and advantages of the present utility model are: 1. when the stains inside the liquid suction pipe need to be cleaned, the cleaning piston is plugged into the other end of the liquid suction pipe and then pulled outwards, the stains inside the liquid suction pipe are scraped, and impurities inside the liquid suction pipe are cleaned conveniently.

2. The elastic conical plug is pushed into the main pipe by the plastic rope, the thrust is kept to continue by combining the elastic force of the plastic rope with the reaction force of the inner wall of the main pipe, so that the elastic conical plug is pushed along the inside of the main pipe and then pulled back, and the sewage is discharged outwards by the elastic conical plug, thereby facilitating the cleaning of the operation cleaning piston.

Drawings

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

FIG. 2 is a schematic view of an extractor tube according to the present utility model;

FIG. 3 is a schematic view of a cleaning piston according to the present utility model;

fig. 4 is a schematic structural view of a limiting seat according to the present utility model.

In the figure: 1. an air extracting pump; 2. a liquid suction pipe; 3. cleaning the piston; 4. a limit seat; 5. sealing cover; 6. a transparent cylinder; 21. a dry pipe; 22. a branch pipe; 31. an elastic conical plug; 32. a plastic rope; 33. push-pull button; 41. a blocking shell; 42. spring buckle; 43. a button.

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.

Referring to fig. 1, a laboratory liquid suction device includes a suction pump 1, a sealing cover 5 is fixedly connected to the lower end of the suction pump 1, the suction pump 1 penetrates to the lower side of the sealing cover 5, a transparent cylinder 6 is connected to the lower end cover of the sealing cover 5, a liquid suction pipe 2 is fixedly connected to the upper end of the sealing cover 5, the liquid suction pipe 2 penetrates to the lower side of the sealing cover 5, and a cleaning piston 3 is inserted in the liquid suction pipe 2. The air in the transparent cylinder 6 is pumped by the air pump 1, so that negative pressure is formed in the transparent cylinder 6, the negative pressure is utilized to act on the liquid suction pipe 2, the liquid suction pipe 2 is used for pumping target liquid, when stains in the liquid suction pipe 2 need to be cleaned, the cleaning piston 3 is plugged into the other end of the liquid suction pipe 2, and then the cleaning piston is pulled outwards, so that the stains in the liquid suction pipe 2 are scraped.

Referring to fig. 1, a limiting seat 4 is blocked at the tail of the liquid suction tube 2, and the lower end of the limiting seat 4 is buckled at the upper end of a sealing cover 5. The limiting seat 4 is used for blocking the tail part of the liquid suction pipe 2, so that the cleaning piston 3 is limited in sliding range.

Referring to fig. 1 and 2, the liquid suction tube 2 includes a main tube 21 and a branch tube 22, the branch tube 22 penetrates through the sealing cover 5, and the main tube 21 and the branch tube 22 are fixedly connected into a whole. The tail of the main pipe 21 is blocked by the cleaning piston 3 so that a negative pressure acts in the main pipe 21 through the branch pipe 22 and liquid is extracted through the main pipe 21.

Referring to fig. 2 and 3, the cleaning piston 3 includes a resilient conical plug 31 and a plastic rope 32, the resilient conical plug 31 is sealed inside the dry pipe 21, and the resilient conical plug 31 is fixedly connected with the plastic rope 32. The elastic conical plug 31 is pushed into the main pipe 21 by the plastic rope 32, the elastic force of the plastic rope 32 is combined with the reaction force of the inner wall of the main pipe 21 to keep the pushing force continuous, so that the elastic conical plug 31 is pushed along the inside of the main pipe 21 and then pulled back, and the sewage is discharged outwards by the elastic conical plug 31.

Referring to fig. 3, the cleaning piston 3 further includes a push-pull button 33, and the push-pull button 33 is fixedly connected to an end of the plastic rope 32 facing away from the elastic conical plug 31. The push-pull button 33 is used for pinching the operation plastic cord 32.

Referring to fig. 1, 2 and 4, the limiting seat 4 includes a blocking shell 41 and a snap fastener 42, the snap fastener 42 is matched with the sealing cover 5 in a fastening manner, the blocking shell 41 is blocked at the tail of the dry pipe 21, and the snap fastener 42 is symmetrically and fixedly connected to the lower end of the blocking shell 41. The elastic buckle 42 is pressed inwards, so that the elastic buckle 42 is separated from the sealing cover 5, and otherwise, the limiting seat 4 is reinstalled.

Referring to fig. 4, the limiting seat 4 further includes a button 43, and the button 43 is fixedly connected to the outside of the latch 42. Manual pressing of the button 43 acts on the latch 42, deforming the latch 42 inward.

Working principle: the air in the transparent cylinder 6 is pumped by the air pump 1, so that negative pressure is formed in the transparent cylinder 6, and the negative pressure acts on the liquid pumping pipe 2, so that the liquid pumping pipe 2 pumps target liquid; when the dirt blocked in the dry pipe 21 needs to be cleaned, the elastic conical plug 31 is pushed into the front part of the dry pipe 21 by pinching the push-pull button 33 through the plastic rope 32, and then pulled back, and the inner wall of the dry pipe 21 is cleaned along the way by using the elastic conical plug 31.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

The application direction is simply mentioned in the description for the prior art that the present utility model is known to those skilled in the art and has not changed, and the complete technology is formed by combining the present utility model; techniques well known to those skilled in the art to avoid undue popularity are employed to assist those skilled in the art in quickly understanding the broad teachings of the present utility model.

Claims

1. Laboratory is with drawing liquid device, including aspiration pump (1), its characterized in that: the lower extreme fixedly connected with sealed lid (5) of aspiration pump (1), aspiration pump (1) runs through to the downside of sealed lid (5), the lower extreme of sealed lid (5) has connect transparent jar (6), the upper end fixedly connected with drawing liquid pipe (2) of sealed lid (5), drawing liquid pipe (2) runs through to sealed lid (5) downside, clearance piston (3) have been inserted to the inside of drawing liquid pipe (2).

2. The laboratory drainage device of claim 1, wherein: the tail part of the liquid suction pipe (2) is blocked with a limiting seat (4), and the lower end of the limiting seat (4) is buckled at the upper end of the sealing cover (5).

3. The laboratory drainage device of claim 1, wherein: the liquid suction pipe (2) comprises a main pipe (21) and a branch pipe (22), and the main pipe (21) and the branch pipe (22) are fixedly connected into a whole.

4. The laboratory drainage device of claim 1, wherein: the cleaning piston (3) comprises an elastic conical plug (31) and a plastic rope (32), and the elastic conical plug (31) is fixedly connected with the plastic rope (32).

5. The laboratory drainage device of claim 4, wherein: the cleaning piston (3) further comprises a push-pull button (33), and the push-pull button (33) is fixedly connected to one end of the plastic rope (32) opposite to the elastic conical plug (31).

6. A laboratory drainage device according to claim 2, wherein: the limiting seat (4) comprises a blocking shell (41) and a spring buckle (42), and the spring buckle (42) is symmetrically and fixedly connected to the lower end of the blocking shell (41).

7. The laboratory drainage device of claim 6, wherein: the limiting seat (4) further comprises a button (43), and the button (43) is fixedly connected to the outer portion of the elastic buckle (42).