CN220531649U

CN220531649U - Bagged suction head

Info

Publication number: CN220531649U
Application number: CN202321156477.XU
Authority: CN
Inventors: 刘小新; 曹建林
Original assignee: Hunan Boshiyuan Biotechnology Co ltd
Current assignee: Hunan Boshiyuan Biotechnology Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2024-02-27
Anticipated expiration: 2033-05-15

Abstract

The utility model belongs to the technical field of medical suction heads, and discloses a bagged suction head which sequentially comprises an indirect suction head and a direct suction head with conical structures from outside to inside, wherein the direct suction head can freely extend or retract along a small opening end of the indirect suction head, a large opening end of the indirect suction head is connected with a bag body, and a filter element is arranged in the direct suction head. The indirect suction head and the direct suction head are arranged, so that the indirect suction head and the direct suction head can be conveniently assembled and disassembled under the cooperation of the first sealing bag and the first positioning sealing groove, and the effects of convenience in pipetting or convenience in packaging and carrying are achieved.

Description

Bagged suction head

Technical Field

The utility model belongs to the technical field of medical suction heads, and particularly relates to a bagged suction head.

Background

The pipette is a common device in the biochemical field experiment, and the working principle is that a piston moves under the action of negative pressure to realize liquid suction and liquid discharge; part of the air is discharged under the pushing of the piston, the liquid is sucked in by utilizing the atmospheric pressure, and then the air is pushed by the piston to discharge the liquid.

The pipette suction head is a very common medical pipette tool, and the suction head used in the prior art has a simple structure, but simultaneously, because the middle part of the suction head is provided with a reinforcing rib, the inner wall of the suction head is not smooth, so that the suction head is inconvenient to clean after long-term use, and in addition, medical staff can install a filter element in the suction head to be matched with the suction head for use under many conditions, but because the part of the suction head, where the filter element is installed, is smooth and has smaller inner diameter, the medical staff can hardly install the filter element conveniently, rapidly and accurately, and the daily use is inconvenient.

Disclosure of Invention

(one) solving the technical problems

In order to solve the problems in the prior art, the utility model provides a bagged suction head, wherein the indirect suction head and the direct suction head are convenient to assemble and disassemble under the cooperation of a first sealing bag and a first positioning sealing groove through the arrangement of the indirect suction head and the direct suction head, so that the effects of being convenient for pipetting or packaging and carrying are achieved.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the bagged suction head sequentially comprises an indirect suction head and a direct suction head with conical structures from outside to inside, wherein the direct suction head can freely extend or retract along the small opening end of the indirect suction head, the large opening end of the indirect suction head is connected with the bag body, and a filtering piece is arranged in the direct suction head.

Preferably, a protective cover is further arranged outside the small opening end of the indirect suction head, and the protective cover is in threaded or sleeved connection.

Preferably, the indirect suction head comprises a connecting pipe movably sleeved outside the direct suction head, the direct suction head comprises a suction pipe movably sleeved outside the indirect suction head, and the filter piece comprises a filter plug movably sleeved inside the suction pipe.

Preferably, the size of the outer peripheral diameter of the lower end of the connecting pipe is smaller than the inner diameter of the upper end of the suction pipe, the size of the outer peripheral diameter of the lower end of the connecting pipe is larger than the inner diameter of the lower end of the suction pipe, the size of the outer peripheral diameter of the filter plug is smaller than the inner diameter of the upper end of the suction pipe, and the size of the outer peripheral diameter of the filter plug is larger than the inner diameter of the lower end of the suction pipe.

Preferably, the bottom of the connecting pipe is propped against the top of the filter plug, and the size of the peripheral diameter of the lower end of the connecting pipe is smaller than the inner diameter size of the installation point of the filter plug in the straw.

Preferably, the upper end integrated into one piece of connecting pipe has the strengthening rib, the strengthening rib suit is outside in the pipetting device.

Preferably, the inside of connecting pipe is provided with two upper and lower first sealed bags, the inner wall of connecting pipe and the surface of first sealed bag are smooth structure.

Preferably, the outer surface of the direct suction head is provided with an upper positioning sealing groove and a lower positioning sealing groove, the inner walls of the first positioning sealing grooves are smooth, and the upper positioning sealing groove and the lower positioning sealing groove are respectively clamped outside the upper sealing bag and the lower sealing bag.

Preferably, a second sealing bag is arranged in the straw, and the inner wall of the straw and the outer surface of the second sealing bag are of smooth structures.

Preferably, the outside of filter plug has seted up the second location seal groove, the inner wall of second location seal groove is smooth structure, second location seal groove cartridge is in the outside of second seal bag.

(III) beneficial effects

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

1. the indirect suction head and the direct suction head are arranged under the cooperation of the first sealing bag and the first positioning sealing groove, so that the indirect suction head and the direct suction head can be conveniently assembled and disassembled, the effects of being convenient for pipetting or packaging and carrying are achieved, and meanwhile, the filter piece is conveniently and stably pushed to a preset position for accurate installation due to the cooperation of the connecting pipe and the suction pipe.

Drawings

FIG. 1 is a cross-sectional view of the front face of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a partial schematic view of the filter plug of FIG. 2;

FIG. 4 is a schematic view of the utility model in disassembly;

FIG. 5 is a schematic view of the filter plug installation of the present utility model;

fig. 6 is a cross-sectional view of the front side of fig. 5.

In the figure: 1. an indirect suction head; 11. a connecting pipe; 12. a first sealing bladder; 13. reinforcing ribs; 2. a direct suction head; 21. a suction pipe; 22. a first positioning seal groove; 23. a second sealed bladder; 3. a filter; 31. a filter plug; 32. and a second positioning seal groove.

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.

As shown in fig. 1 to 6, the utility model provides a bagged suction head, which sequentially comprises an indirect suction head 1 and a direct suction head 2 with conical structures from outside to inside, wherein the direct suction head 2 can freely extend or retract along the small opening end of the indirect suction head 1, the large opening end of the indirect suction head 1 is connected with a bag body, and a filter element 3 is arranged in the direct suction head 2; the arrangement of the indirect suction head 1 and the direct suction head 2 not only increases the overall length of the equipment so as to facilitate pipetting, but also reduces the single length of the two, namely reduces the depth of the suction pipe so as to facilitate cleaning of the inside by staff.

As shown in figure 1, a protective cover is arranged outside the small opening end of the indirect suction head 1, and the protective cover is in threaded or sleeved connection.

As shown in fig. 1, the indirect suction head 1 comprises a connecting pipe 11 movably sleeved outside the direct suction head 2, the direct suction head 2 comprises a suction pipe 21 movably sleeved outside the indirect suction head 1, and the filter element 3 comprises a filter plug 31 movably sleeved inside the suction pipe 21; the indirect suction head 1, the direct suction head 2 and the filter element 3 can be conveniently assembled and disassembled due to the arrangement of the connecting pipe 11, the suction pipe 21 and the filter plug 31, so that the effects of convenient use for pipetting or convenient packaging and carrying are achieved.

As shown in fig. 1, the connecting pipe 11, the suction pipe 21 and the filter plug 31 are all in a conical structure, the size of the outer peripheral diameter of the lower end of the connecting pipe 11 is smaller than the inner diameter of the upper end of the suction pipe 21, the size of the outer peripheral diameter of the lower end of the connecting pipe 11 is larger than the inner diameter of the lower end of the suction pipe 21, the size of the outer peripheral diameter of the filter plug 31 is smaller than the inner diameter of the upper end of the suction pipe 21, and the size of the outer peripheral diameter of the filter plug 31 is larger than the inner diameter of the lower end of the suction pipe 21; due to the cooperation of the connecting pipe 11 and the suction pipe 21, the filter plug 31 is conveniently pushed to a preset position in the suction pipe 21 by the upper end of the suction pipe 21 stably by utilizing the bottom of the connecting pipe 11 for accurate installation, so that the filtering effect is achieved.

As shown in fig. 6, the bottom of the connection pipe 11 abuts against the top of the filter plug 31, and the outer peripheral diameter of the lower end of the connection pipe 11 is smaller in size than the inner diameter of the suction pipe 21 at the installation point of the filter plug 31.

As shown in fig. 1, the upper end of the connecting pipe 11 is integrally formed with a reinforcing rib 13, and the reinforcing rib 13 is sleeved outside the pipetting device; the strength of the whole indirect suction head 1 can be improved by the reinforcing ribs 13, and the whole indirect suction head is convenient for operators to firmly install on the pipetting device.

As shown in fig. 3, an upper first sealing bag 12 and a lower first sealing bag 12 are arranged inside the connecting pipe 11, and the inner wall of the connecting pipe 11 and the outer surface of the first sealing bag 12 are of smooth structures; due to the provision of the first seal bag 12, the pipette 21 can be stably connected to the connecting tube 11 by the engagement of the first positioning seal groove 22, and the sealing property of the connection between the pipette and the connecting tube can be ensured, so that the pipetting operation can be smoothly performed.

As shown in fig. 3, the outer surface of the direct suction head 2 is provided with an upper first positioning seal groove 22 and a lower first positioning seal groove 22, the inner walls of the first positioning seal grooves 22 are smooth, and the upper first positioning seal groove 22 and the lower first positioning seal groove 22 are respectively clamped outside the upper first sealing bag 12 and the lower first sealing bag 12.

As shown in fig. 3, the second sealing bag 23 is arranged inside the suction pipe 21, and the inner wall of the suction pipe 21 and the outer surface of the second sealing bag 23 are of smooth structures; due to the arrangement of the second sealing bag 23, the filter plug 31 can be stably connected with the suction tube 21 under the cooperation of the second positioning sealing groove 32, and the tightness of the connection between the filter plug 31 and the suction tube 21 can be ensured, so that the filter plug 31 can filter the pipetting liquid.

As shown in fig. 4, the outer part of the filter plug 31 is provided with a second positioning seal groove 32, the inner wall of the second positioning seal groove 32 is of a smooth structure, and the second positioning seal groove 32 is clamped on the outer part of the second sealing bag 23.

The working principle and the using flow of the utility model are as follows:

during assembly, the filter plug 31 is placed in the suction tube 21, the lower end of the connecting tube 11 is inserted into the suction tube 21 from top to bottom, the bottom of the connecting tube 11 is propped against the filter plug 31, the filter plug 31 is pushed down slowly until the second positioning seal groove 32 on the side surface of the filter plug is clamped inside the second sealing bag 23, the indirect suction head 1 is taken out, the direct suction head 2 is inserted into the indirect suction head 1 from top to bottom, the direct suction head 2 naturally falls under the action of gravity, the lower end of the direct suction head 2 extends out of the bottom of the connecting tube 11, the lower end of the suction tube 21 is pulled to enable the direct suction head 2 and the indirect suction head 1 to move relatively until the first positioning seal groove 22 is clamped inside the first sealing bag 12, and finally the whole device is installed on a pipetting device through the reinforcing ribs 13.

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

1. Bagged suction head is characterized in that: the automatic cleaning device comprises an indirect suction head (1) and a direct suction head (2) which sequentially comprise a conical structure from outside to inside, wherein the direct suction head (2) can freely extend or retract along the small opening end of the indirect suction head (1), the large opening end of the indirect suction head (1) is connected with a bag body, and a filtering piece (3) is arranged in the direct suction head (2).

2. A bagged suction head as claimed in claim 1, wherein: the outside of indirect suction head (1) osculum end still is equipped with the visor, the visor is screw thread or cup joint connection.

3. A bagged suction head as claimed in claim 1, wherein: the indirect suction head (1) comprises a connecting pipe (11) movably sleeved outside the direct suction head (2), the direct suction head (2) comprises a suction pipe (21) movably sleeved outside the indirect suction head (1), and the filter element (3) comprises a filter plug (31) movably sleeved inside the suction pipe (21).

4. A bagged suction head as claimed in claim 3, in which: the size of the outer peripheral diameter of the lower end of the connecting pipe (11) is smaller than the inner diameter of the upper end of the suction pipe (21), the size of the outer peripheral diameter of the lower end of the connecting pipe (11) is larger than the inner diameter of the lower end of the suction pipe (21), the size of the outer peripheral diameter of the filter plug (31) is smaller than the inner diameter of the upper end of the suction pipe (21), and the size of the outer peripheral diameter of the filter plug (31) is larger than the inner diameter of the lower end of the suction pipe (21).

5. A bagged suction head as claimed in claim 3, in which: the bottom of connecting pipe (11) and filter plug (31) top butt, the size of connecting pipe (11) lower extreme periphery diameter is less than the internal diameter size of straw (21) inside filter plug (31) mounting point department.

6. A bagged suction head as claimed in claim 3, in which: the upper end integrated into one piece of connecting pipe (11) has strengthening rib (13), strengthening rib (13) suit is outside in the pipetting device.

7. A bagged suction head as claimed in claim 3, in which: the inside of connecting pipe (11) is provided with two upper and lower first sealed bags (12), the inner wall of connecting pipe (11) and the surface of first sealed bag (12) are smooth structure.

8. The bagged suction head as claimed in claim 7, wherein: the outer surface of the direct suction head (2) is provided with an upper first positioning sealing groove (22) and a lower first positioning sealing groove (22), the inner wall of the first positioning sealing groove (22) is smooth, and the upper first positioning sealing groove (22) and the lower first positioning sealing groove (22) are respectively clamped outside the upper first sealing bag (12) and the lower first sealing bag.

9. The bagged suction head as claimed in claim 8, wherein: the inside of straw (21) is provided with second sealed bag (23), the inner wall of straw (21) and the surface of second sealed bag (23) are smooth structure.

10. A bagged suction head as claimed in claim 9, in which: the outside of filter plug (31) has seted up second location seal groove (32), the inner wall of second location seal groove (32) is smooth structure, second location seal groove (32) cartridge is in the outside of second seal bag (23).