CN213528720U

CN213528720U - Siphoning type serum pipette

Info

Publication number: CN213528720U
Application number: CN202022409470.7U
Authority: CN
Inventors: 姜程馨
Original assignee: Hangzhou Maien Technology Co ltd
Current assignee: Hangzhou Maien Technology Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-25
Anticipated expiration: 2030-10-26

Abstract

The utility model provides a hydrocone type serum pipette belongs to pipette technical field. This hydrocone type serum pipette includes the subassembly of bleeding and moves the liquid subassembly. The air pumping assembly comprises an air pumping cylinder and a butt joint part, the butt joint part comprises an air pumping channel I, a connecting channel I, an air pumping channel II, a connecting channel II and an air pumping channel III, the air pumping channel I is communicated with the air pumping cylinder, the two ends of the connecting channel I are respectively communicated with the air pumping channel I and the air pumping channel II, the two ends of the connecting channel II are respectively communicated with the air pumping channel II and the air pumping channel III, and an air valve is arranged on the connecting channel I and the connecting channel II. In the utility model, the air exhaust component can simultaneously perform the liquid transfer operation of a plurality of pipettes, namely, the sampling of a plurality of serums is convenient; move liquid the subassembly and can utilize support piece to carry out the centre gripping, promote the convenience of serum sampling.

Description

Siphoning type serum pipette

Technical Field

The utility model relates to a pipette field particularly, relates to a hydrocone type serum pipette.

Background

The serum pipette is also called a disposable pipette and is mainly used for accurately measuring liquid with a certain volume and needs to be matched with a proper pipette for use. Meanwhile, the prior pipette is an elongated glass tube with a swelling part in the middle.

For example, a siphon pipette (china, published after 20150311) with CN204193967U for continuously extracting liquid can continuously extract sample liquid from a reagent bottle into a sample bottle through cooperation of an air pump, the pipette and a siphon tube. However, above-mentioned scheme still has the defect when using, and above-mentioned scheme adopts air pump and rubber tube combination to go to connect the business turn over gas port of pipette and carries out the sampling of serum appearance liquid, not only inconvenient dock air pump fast with the pipette, still can not once only carry out the collection of multiple serum appearance liquid to make serum appearance liquid collection efficiency reduce.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above deficiency, the utility model provides a hydrocone type serum pipette aims at improving the problem that current serum pipette collection equipment can not once only carry out multiple serum appearance liquid collection.

The utility model discloses a realize like this:

the utility model provides a siphon type serological pipette, which comprises an air pumping assembly and a liquid transferring assembly.

The air pumping assembly comprises an air pumping cylinder and a butt joint part, the butt joint part comprises an air pumping channel I, a connecting channel I, an air pumping channel II, a connecting channel II and an air pumping channel III, the air pumping channel I is communicated with the air pumping cylinder, two ends of the connecting channel I are respectively communicated with the air pumping channel I and the air pumping channel II, two ends of the connecting channel II are respectively communicated with the air pumping channel II and the air pumping channel III, air valves are respectively arranged on the connecting channel I and the connecting channel II, a threaded hole is further formed in the side wall of the air pumping channel I in a penetrating mode, the air pumping channel I is connected with a plug through the threaded hole, sealing rubber sleeves are respectively adhered to the inner walls of the opening of the air pumping channel I, the air pumping channel II and the air pumping channel III, a drawing piston part is connected inside the air pumping cylinder, and the liquid, the pipette upper end plug-in connect to in the sealing rubber cover, be equipped with the pearl body that is used for shutoff its passageway in the enlarged department of pipette from the area, the siphon communicate in the pipette, and its bottom extends to the interior bottom of enlarged department of pipette, be connected with out the appearance valve on the siphon.

In one embodiment of the present invention, the piston member includes a piston block, a pull rod, a sealing rubber ring, and a handle.

In an embodiment of the present invention, the sealing rubber ring is adhered to the outer wall of the piston block, and the sealing rubber ring is tightly attached to the inner wall of the air pumping cylinder.

In an embodiment of the present invention, the pull rod is vertically connected to the piston block, and the length of the pull rod is greater than the length of the suction cylinder.

In an embodiment of the invention, the handle is connected to an outer end of the pull rod.

In an embodiment of the utility model, the siphon with the intercommunication department of pipette is located the enlargement department upper portion of pipette oneself, the siphon slope sets up downwards.

In an embodiment of the present invention, the support member includes a base, a pillar, and a plastic clip.

In an embodiment of the present invention, the stand column and the plastic clip are all provided with three, the stand column is evenly and fixedly vertically connected to the upper portion of the base.

In an embodiment of the present invention, three plastic clips are respectively connected to the corresponding upper outer wall of the stand column, and the plastic clips are tightly fixed with the outer wall of the pipette.

In an embodiment of the present invention, three of the inner walls of the plastic clip are further adhered with an anti-skid rubber pad, and the anti-skid rubber pad is tightly attached to the outer wall of the pipette.

The utility model has the advantages that: the utility model discloses a hydrocone type serum pipette that above-mentioned design obtained, during the use, the plastics clamp that utilizes to connect on every stand can conveniently carry out the centre gripping with the pipette fast fixed, the setting that utilizes anti-skidding rubber pad simultaneously can increase the pipette by the stability of centre gripping, close out the appearance valve, insert the pipette upper end again in the sealed rubber sleeve that air exhaust passage I or air exhaust passage II or air exhaust passage III are connected, it is comparatively convenient to install, when treating that three pipette operation needs to be carried out, open the pneumatic valve on connecting passage I and the connecting passage II, if need not carry out a plurality of pipette operations, close respectively connecting passage I and connecting passage II on the pneumatic valve of installing can, set up the liquid-transfering function that is convenient for carry out a plurality of pipettes simultaneously like this, make things convenient for the sampling of a plurality of sera promptly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a siphonic serological pipette according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an air pumping assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a docking piece according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a partially enlarged structure at a in fig. 1 according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a liquid-transfering assembly provided by the embodiment of the present invention;

fig. 6 is a schematic structural view of a connection relationship between the plastic clip and the pipette and the column according to an embodiment of the present invention.

In the figure: 10-an air extraction assembly; 110-an air pump cylinder; 120-an interface; 121-pumping channel I; 122-connecting channel i; 123-an air exhaust channel II; 124-connecting channel II; 125-pumping channel III; 126-gas valve; 127-plug; 128-sealing rubber sleeve; 130-a piston member; 131-a piston block; 132-a pull rod; 133-sealing rubber ring; 134-a handle; 20-a pipetting assembly; 210-a pipette; 220-siphon tube; 230-a support; 231-a base; 232-column; 233-plastic clips; 240-beads; 250-sample outlet valve.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a siphon type serological pipette, which includes an air pumping assembly 10 and a liquid transferring assembly 20.

Wherein, the air pumping assembly 10 can simultaneously perform the liquid transferring operation of a plurality of pipettes 210, i.e. facilitate the sampling of a plurality of serums; the pipetting assembly 20 can be clamped by the support 230, so that the convenience of serum sampling is improved.

Referring to fig. 1 to 4, the pumping assembly 10 includes a pumping cylinder 110 and an abutting member 120, the abutting member 120 includes a pumping channel i 121, a connecting channel i 122, a pumping channel ii 123, a connecting channel ii 124 and a pumping channel iii 125, the pumping channel i 121 is communicated with the pumping cylinder 110, wherein the pumping cylinder 110 and the pumping channel i 121 are integrally formed. Two ends of the connecting channel I122 are respectively communicated with the air exhaust channel I121 and the air exhaust channel II 123, two ends of the connecting channel II 124 are respectively communicated with the air exhaust channel II 123 and the air exhaust channel III 125, and the upper ends of the air exhaust channel II 123 and the air exhaust channel III 125 are both sealed. Air valves 126 are respectively arranged on the connecting channel I122 and the connecting channel II 124, and the air pumping action of the air pumping cylinder 110 can also act on the air pumping channel II 123 and the air pumping channel III 125 by utilizing the air valves 126, so that the serum sampling work of a plurality of pipettes 210 is facilitated.

Still run through on the I121 lateral wall of air exhaust passageway and seted up threaded hole, air exhaust passageway I121 is connected with end cap 127 through the screw hole, and end cap 127 outer wall is equipped with the internal thread that suits with the screw hole, and air exhaust passageway I121 and air exhaust passageway II 123 and air exhaust passageway III 125 opening part inner wall all are through the inherent sealing rubber cover 128 of powerful gluing.

The piston member 130 is connected to the inner portion of the air extraction cylinder 110 in a drawing manner, the piston member 130 comprises a piston block 131, a pull rod 132, a sealing rubber ring 133 and a handle 134, the sealing rubber ring 133 is fixed to the outer wall of the piston block 131 through strong glue, the sealing rubber ring 133 is tightly attached to the inner wall of the air extraction cylinder 110, the pull rod 132 is vertically connected to the piston block 131, and the piston block 131 and the pull rod 132 are integrally formed. And the length of the pull rod 132 is greater than that of the extraction canister 110, and a handle 134 is connected to the outer end of the pull rod 132, wherein the handle 134 and the outer end of the pull rod 132 are integrally formed.

Referring to fig. 5 and 6, the liquid transferring assembly 20 includes a pipette 210, a siphon 220 and a supporting member 230, the upper end of the pipette 210 is inserted into the sealing rubber sleeve 128, a bead 240 for blocking the channel of the pipette 210 is disposed in the expanded portion of the pipette 210, the siphon 220 is communicated with the pipette 210, and the bottom end of the siphon 220 extends to the inner bottom of the expanded portion of the pipette 210, specifically, the communication portion of the siphon 220 and the pipette 210 is located at the upper portion of the expanded portion of the pipette 210, and the siphon 220 is disposed obliquely downward, so that the serum in the pipette 210 can be smoothly moved to an external sample bottle along the siphon 220. A sample outlet valve 250 is connected to the siphon tube 220.

The supporting member 230 comprises a base 231, a stand column 232 and a plastic clamp 233, wherein the stand column 232 and the plastic clamp 233 are all provided in three, the three stand columns 232 are uniformly and fixedly vertically connected to the upper portion of the base 231, and the stand columns 232 and the base 231 are integrally formed. Three plastic clips 233 are respectively connected to the upper outer walls of the corresponding posts 232, wherein the plastic clips 233 are integrally formed with the posts 232. The plastic clips 233 are fixedly clamped with the outer wall of the pipette 210, the inner walls of the three plastic clips 233 are adhered with anti-skid rubber pads through strong glue, and the anti-skid rubber pads are tightly attached to the outer wall of the pipette 210.

The operating principle of the siphon type serum pipette is as follows: when the device is used, the pipette 210 can be clamped and fixed conveniently and quickly by the plastic clamp 233 connected to each upright 232, the stability of the pipette 210 clamped can be improved by the arrangement of the anti-skid rubber pads, the sampling valve 250 is closed, the upper end of the pipette 210 is inserted into the sealing rubber sleeve 128 connected to the air suction channel I121, the air suction channel II 123 or the air suction channel III 125, when three pipettes 210 are required to be operated, the air valves 126 on the connecting channel I122 and the connecting channel II 124 are opened, if a plurality of pipettes 210 are not required to be operated, the air valves 126 arranged on the connecting channel I122 and the connecting channel II 124 are respectively closed, so that the device is convenient for carrying out the pipetting operation of a plurality of pipettes 210 simultaneously, namely, the sampling of a plurality of serums is convenient, in the embodiment, the two air valves 126 are in the closed state, the operator pulls the handle 134 connected to the top end of the pull rod 132 upwards, make piston block 131 upwards remove in aspiration cylinder 110, thereby can make aspiration cylinder 110 be in the state of bleeding, and pipette 210 is under the negative pressure state this moment, the serum in the solution bottle can enter into its expansion department from the area through the inlet channel in pipette 210 in, because be equipped with the pearl body 240 that is used for shutoff its passageway in the expansion department, thereby can play the probability that prevents liquid reflux to in the solution bottle, when waiting for the serum in pipette 210 to exceed siphon 220 upper end entrance, open out appearance valve 250, the serum can flow to external sample bottle through siphon 220 automatically, open end cap 127 in the screw hole and make pipette 210 internal pressure resume balanced, carry out the air exhaust activity of a new round again.

It should be noted that the specific model specifications of the air pumping channel i 121, the connection channel i 122, the air pumping channel ii 123, the connection channel ii 124, the air pumping channel iii 125, and the air valve 126 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, and therefore, detailed description is omitted.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A siphonic serological pipette is characterized by comprising

The air extracting component (10), the air extracting component (10) comprises an air extracting cylinder (110) and a butt joint piece (120), the butt joint piece (120) comprises an air extracting channel I (121), a connecting channel I (122), an air extracting channel II (123), a connecting channel II (124) and an air extracting channel III (125), the air extracting channel I (121) is communicated with the air extracting cylinder (110), two ends of the connecting channel I (122) are respectively communicated with the air extracting channel I (121) and the air extracting channel II (123), two ends of the connecting channel II (124) are respectively communicated with the air extracting channel II (123) and the air extracting channel III (125), air valves (126) are respectively arranged on the connecting channel I (122) and the connecting channel II (124), a threaded hole is further formed in the side wall of the air extracting channel I (121), and the air extracting channel I (121) is connected with a plug (127) through the threaded hole, sealing rubber sleeves (128) are respectively bonded on the inner walls of openings of the air extraction channel I (121), the air extraction channel II (123) and the air extraction channel III (125), and a piston piece (130) is connected in the air extraction cylinder (110) in a pulling manner;

move liquid subassembly (20), move liquid subassembly (20) including pipette (210), siphon (220) and support piece (230), pipette (210) upper end peg graft to in sealing rubber sleeve (128), be equipped with in the enlarged department of pipette (210) from the area and be used for the pearl body (240) of shutoff its passageway, siphon (220) communicate in pipette (210), and its bottom extends to the interior bottom of pipette (210) enlarged department, be connected with out appearance valve (250) on siphon (220).

2. The siphonic serological pipette according to claim 1, wherein the piston member (130) comprises a piston block (131) and a pull rod (132) and a sealing rubber ring (133) and a handle (134).

3. The siphonic serological pipette according to claim 2, wherein the sealing rubber ring (133) is adhered to the outer wall of the piston block (131), and the sealing rubber ring (133) is in close contact with the inner wall of the suction tube (110).

4. The siphonic serological pipette according to claim 2, wherein the pull rod (132) is connected perpendicularly to the piston block (131) and the length of the pull rod (132) is greater than the length of the suction canister (110).

5. The siphonic serological pipette according to claim 2, wherein the handle (134) is connected to an outer end of the pull rod (132).

6. The siphonic serological pipette according to claim 1, wherein the siphon (220) is in communication with the pipette (210) at an upper portion of the bulge carried by the pipette (210), and the siphon (220) is disposed in an inclined downward direction.

7. The siphonic serological pipette according to claim 1, wherein the support (230) comprises a base (231) and a post (232) and a plastic clip (233).

8. The siphonic serological pipette according to claim 7, wherein there are three of the posts (232) and the plastic clips (233), and three of the posts (232) are uniformly and vertically fixed to the upper part of the base (231).

9. The siphonic serological pipette according to claim 7, wherein three plastic clips (233) are attached to the upper outer wall of the corresponding posts (232), and the plastic clips (233) are clamped to the outer wall of the pipette (210).

10. The siphonic serological pipette according to claim 7, wherein anti-slip rubber pads are further adhered to the inner walls of all three plastic clips (233), and are tightly adhered to the outer wall of the pipette (210).