CN218288826U

CN218288826U - Novel sealed liquid pumping device

Info

Publication number: CN218288826U
Application number: CN202222356893.6U
Authority: CN
Inventors: 张相军; 乔峥; 何刚
Original assignee: Jinan Tiangong Instrument Co ltd
Current assignee: Jinan Tiangong Instrument Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-01-13
Anticipated expiration: 2032-09-06

Abstract

The utility model relates to a solution detection area especially relates to a novel sealed drawing liquid device. The technical scheme comprises the following steps: the inner cup, the vertical drawing liquid mouth of having seted up that runs through in inner cup surface, the interior vertical grafting of drawing liquid mouth has the liquid suction pipe, and the interior upper end of drawing liquid mouth is equipped with the sealing washer No. one, and on the liquid suction pipe was located to the sealing washer cover, the other check valve of installing of drawing liquid mouth, the utility model discloses following profitable technological effect has: seal through a sealing washer between to liquid suction pipe and the drawing liquid mouth, avoid drawing the liquid in-process to appear the uncovered phenomenon of solution, lead to solution to volatilize easily, not only cause extravagant phenomenon, and the part solution that volatilizees causes the harm to the human body easily, be convenient for balance solvent bottle inside and outside atmospheric pressure through the check valve, one-way conduction allows the air admission, does not allow the solvent to volatilize and effluvium.

Description

Novel sealed liquid pumping device

Technical Field

The utility model relates to a solution detection area especially relates to a novel sealed drawing liquid device.

Background

In medical treatment and food testing process, often use extraction test solution, but the method of most extraction solution at present still the bottle opens the mouth, and the pipe is inserted into and is taken out liquid, has the solution to volatilize, destroys laboratory environment and harm the experimenter healthy to influence experimental data (experiment solution concentration change), also use safe sealed lid under some environment now, safe sealed lid commonly used can have pipette length adjustment loaded down with trivial details at present, stranded gas forms shortcomings such as negative pressure. We have now improved on these problems.

The existing filtration liquid extraction has the defects that the liquid extraction is not sealed, the solution volatilization is inevitable, the waste phenomenon is caused, and a lot of organic solution is harmful to human.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problem that exists among the background art, provide a novel sealed drawing liquid device, make it be convenient for reach sealed effect when extracting solution, avoid the uncovered phenomenon of volatilizing of solution.

The technical scheme of the utility model: a novel sealed liquid pumping device comprises: the inner cup, the vertical drawing liquid mouth that has seted up that runs through in inner cup surface, the vertical liquid suction pipe of pegging graft in the drawing liquid mouth, the interior upper end of drawing liquid mouth is equipped with the sealing washer No. one, no. one the sealing washer cover is located on the liquid suction pipe, the other check valve that installs of drawing liquid mouth.

Preferably, no. one annular seal groove has been seted up to the sealing washer relative position of drawing liquid mouth inside wall position, no. one the sealing washer is located annular seal groove, no. one the sealing washer inside wall is connected with the contact of liquid suction pipe lateral wall, the inner cup top is dismantled and is connected with the upper cover, the upper cover top is located drawing liquid mouth relative position and has run through and has seted up the opening, liquid suction pipe upper end through opening, the inner cup below is equipped with sealed lid, sealed inside wall of covering is seted up there is the internal thread, the inner cup lateral wall is located internal thread relative position and has seted up with internal thread assorted external screw thread, inner cup and sealed threaded connection of covering.

Preferably, the top surface of the one-way valve is fixedly connected with a dustproof pad used for preventing dust of the one-way valve.

Preferably, the outer side wall of the inner cover is fixedly connected with a sealing body at the position opposite to the upper cover, and the sealing body is connected with the bottom end of the upper cover in a clamping manner.

Preferably, the inner cup lateral wall is located the external screw thread top and has seted up No. two annular seal grooves, install No. two sealing washers in No. two annular seal grooves, no. two sealing washer lateral walls are connected with the contact of sealed inside wall of lid.

Compared with the prior art, the utility model discloses following profitable technological effect has: seal through a sealing washer between to liquid suction pipe and the drawing liquid mouth, avoid drawing the liquid in-process to appear the uncovered phenomenon of solution, lead to solution to volatilize easily, not only cause extravagant phenomenon, and the part solution that volatilizees causes the harm to the human body easily, be convenient for balance solvent bottle inside and outside atmospheric pressure through the check valve, one-way conduction allows the air admission, does not allow the solvent to volatilize and effluvium.

Drawings

Fig. 1 is a front sectional schematic view of an embodiment of the present invention;

fig. 2 is a schematic front view of an embodiment of the present invention;

fig. 3 is a schematic view of a connection structure of a first sealing ring according to an embodiment of the present invention.

Reference numerals: 1. an inner cover; 2. a liquid extraction port; 3. a first sealing ring; 4. a one-way valve; 5. a sealing cover; 6. an upper cover; 7. an opening; 8. a liquid pumping pipe; 9. a first annular seal groove; 10. a dust-proof pad; 11. a seal body; 12. a second annular seal groove; 13. a second sealing ring; 14. an internal thread; 15. and (4) external threads.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, identical or similar reference numerals indicate identical or similar parts and features. The drawings are only schematic representations of the concepts and principles of the embodiments of the present invention, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present invention. Certain features that are in certain figures may be shown exaggerated in detail in order to illustrate relevant details or structures of embodiments of the invention.

Example one

As shown in fig. 1-3, the utility model provides a novel sealed liquid pumping device, include: inner cup 1, the vertical run-through of drawing liquid mouth 2 is seted up on the inner cup 1 surface, and liquid suction pipe 8 is vertical to be pegged graft in drawing liquid mouth 2, and a sealing washer 3 is located in drawing liquid mouth 2 upper end, and No. 3 covers of sealing washer locate on liquid suction pipe 8, and check valve 4 is installed by drawing liquid mouth 2.

Annular seal groove 9 is seted up in drawing liquid 2 inside walls of mouth and is located 3 relative positions of sealing washer No. one, a sealing washer 3 is located annular seal groove 9 No. one, 8 lateral walls of liquid suction pipe are connected with the 3 inside wall contact of a sealing washer, 6 dismantlements of upper cover are connected in inner cup 1 top, opening 7 runs through and sets up in 6 tops of upper cover and is located drawing liquid mouth 2 relative positions, 8 upper ends through opening 7 of liquid suction pipe, sealed lid 5 is located inner cup 1 below, internal thread 14 sets up in sealed lid 5 inside walls, 1 lateral walls of inner cup are located internal thread 14 relative position and seted up with internal thread 14 assorted external screw thread 15, inner cup 1 and sealed 5 threaded connection of lid.

The dustproof pad 10 is fixedly connected to the top surface of the one-way valve 4 for preventing dust of the one-way valve 4.

The working principle based on the first embodiment is as follows: when needs draw solution, open check valve 4, run through opening 7 and drawing liquid mouth 2 with 8 one ends of liquid suction pipe, make its lateral wall and 3 inside wall contacts of sealing washer be connected, make it realize sealed drawing liquid, avoid the uncovered phenomenon of volatilizing that appears of solution, not only cause the waste of solution easily, and the solution that partly volatilizees can cause the damage to the human body, influence human health, when need not draw solution, take out liquid suction pipe 8 from drawing liquid mouth 2 in, then close check valve 4, atmospheric pressure inside and outside the balanced solvent bottle of being convenient for through check valve 4, one-way conduction, allow air admission, the solvent is not allowed to volatilize and is effluvized.

Example two

As shown in fig. 1 and fig. 2, based on the first embodiment, the utility model provides a novel sealed liquid pumping device, seal 11 fixed connection are located 6 relative positions of upper cover in the 1 lateral wall of inner cup, and seal 11 is connected with 6 bottom joints of upper cover.

No. two annular seal grooves 12 are opened and are located the external screw thread 15 top in inner cup 1 lateral wall, and No. two sealing washer 13 is installed in No. two annular seal grooves 12, and No. two sealing washer 13 lateral walls are connected with 5 inside wall contact of sealed lid.

The working principle based on the second embodiment is as follows: be connected through

seal

11 and 6 joints of upper cover, be convenient for improve the sealing performance between upper cover 6 and the inner cup 1, mutually support through No. two ring seal groove 12 and No. two sealing washer 13, be convenient for improve the sealing performance between inner cup 1 and the sealed lid 5.

In the above, exemplary embodiments of the proposed solution have been described in detail with reference to preferred embodiments, however, it will be understood by those skilled in the art that many variations and modifications can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations of the various technical features and structures proposed by the present invention can be made without departing from the scope of the present invention, which is defined by the appended claims.

Claims

1. A novel sealed liquid pumping device comprises: inner cup (1), its characterized in that: the inner cup (1) surface is vertical to run through and has been seted up drawing liquid mouth (2), vertical grafting has liquid suction pipe (8) in drawing liquid mouth (2), the upper end is equipped with sealing washer (3) in drawing liquid mouth (2), no. one sealing washer (3) cover is located on liquid suction pipe (8), check valve (4) are installed to drawing liquid mouth (2) side.

2. The novel sealed liquid pumping device according to claim 1, wherein a first annular sealing groove (9) is formed in the inner side wall of the liquid pumping port (2) at a position corresponding to a first sealing ring (3), the first sealing ring (3) is located in the first annular sealing groove (9), the inner side wall of the first sealing ring (3) is in contact connection with the outer side wall of the liquid pumping pipe (8), an upper cover (6) is detachably connected to the upper side of the inner cover (1), the top of the upper cover (6) is located at a position corresponding to the liquid pumping port (2) and penetrates through the opening (7), the upper end of the liquid pumping pipe (8) penetrates through the opening (7), a sealing cover (5) is arranged below the inner cover (1), an inner thread (14) is formed in the inner side wall of the sealing cover (5), an outer side wall of the inner cover (1) at a position corresponding to the inner thread (14) and is provided with an outer thread (15) matched with the inner thread (14), and the inner cover (1) is in threaded connection with the sealing cover (5).

3. The novel sealed liquid-extracting device as claimed in claim 1, characterized in that a dustproof pad (10) for preventing dust of the check valve (4) is fixedly connected to the top surface of the check valve (4).

4. The novel sealed liquid pumping device as claimed in claim 2, characterized in that the sealing body (11) is fixedly connected to the outer side wall of the inner cover (1) at the position opposite to the upper cover (6), and the sealing body (11) is connected with the bottom end of the upper cover (6) in a clamping manner.

5. The novel sealed liquid pumping device as claimed in claim 2, characterized in that a second annular sealing groove (12) is formed on the outer side wall of the inner cover (1) above the external thread (15), a second sealing ring (13) is installed in the second annular sealing groove (12), and the outer side wall of the second sealing ring (13) is in contact connection with the inner side wall of the sealing cover (5).