CN212313991U - Transfer device for liquid transfer gun head - Google Patents

Abstract

The utility model provides a transfer device for a pipetting gun head, which comprises an annular frame, wherein a gun taking device is arranged in the annular frame, the gun taking device comprises a plurality of guide sheets arranged side by side, and each guide sheet is provided with a plurality of downwards extending taking needles; still include and push away rifle subassembly, including separation blade and push rod, the push rod is along vertical direction sliding connection with annular frame, separation blade horizontal connection just is located the below of guide plate in the bottom of push rod, the position that corresponds with every through-hole on the separation blade all is provided with logical groove, a plurality of needles of getting pass logical groove, when using, put the head end of pipetting gun head down neatly, then let get the tail end that the needle bottom aimed at the pipetting gun head, it inserts pipetting gun head internal fixation to get the needle, mention this pipetting gun head transfer device, put into special box body with the pipetting gun head, then hold annular frame, promote the push rod downwards, the separation blade downstream, scrape the pipetting gun head from getting the needle, drop in special box body, accomplish the transfer of pipetting gun head.

Description

Transfer device for liquid transfer gun head

Technical Field

The utility model belongs to the technical field of the transfer technique of pipette head and specifically relates to a transfer device of pipette head is related to.

Background

The pipette tips are widely used in biological, medical and chemical experiments for quantitatively transferring solution reagents and have an important effect on controlling the dosage of experimental solutions, in practice, newly purchased pipette tips are placed in a packaging bag disorderly, and the pipette tips need to be placed in a special box orderly for convenient use.

Therefore, how to solve the problem that the messy pipette tips need to be manually placed in special boxes in the prior art becomes a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid-transfering gun head transfer device to solve mixed and disorderly liquid-transfering gun head among the prior art and need the manual work place its problem in the special box.

The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of liquid-transfering gun head shifts device, include:

an annular outer frame;

the gun taking device arranged on the inner side of the annular outer frame comprises a plurality of guide vanes arranged side by side, each guide vane is provided with a plurality of through holes vertically penetrating through the guide vane, and each through hole is internally provided with a downwards extending taking needle;

the push gun assembly comprises a blocking piece and a push rod, the push rod is connected with the annular outer frame in a sliding mode in the vertical direction, the blocking piece is arranged below the guide piece and connected with the bottom end of the push rod, a through groove which slides in the vertical direction is formed in the blocking piece, and the width of the through groove is larger than the outer diameter of the taking needle and smaller than the tail end diameter of the liquid transfer gun head.

Preferably, the plurality of guide vanes include a fixed guide vane fixedly connected to the inner side of the annular outer frame, a driving guide vane arranged in parallel with the fixed guide vane, and a plurality of driven guide vanes arranged between the driving guide vane and the fixed guide vane, the driving guide vane and the driven guide vane are both slidably connected to the annular outer frame, the sliding direction is along a direction perpendicular to the fixed guide vane, and the through groove is a long strip-shaped groove and extends along a direction perpendicular to the fixed guide vane.

Preferably, linkage limiting devices are arranged between the driving guide vane and the driven guide vanes, between the driven guide vanes and the fixed guide vanes.

Preferably, linkage stop device includes stop screw and spacing ring, fixed guide vane, a plurality of driven guide vane and initiative guide vane all is provided with along self length direction's both ends stop screw, every two adjacent stop screw's the outside all is equipped with one the spacing ring, every the length of spacing ring is greater than two stop screw's diameter sum.

Preferably, every two adjacent guide vanes are provided with a partition needle therebetween, and the guide vanes are detachably connected with the partition needle.

Preferably, both ends of the active guide vane along the length direction are provided with wrenches for pulling the active guide vane to slide.

Preferably, the top end and the middle part of the needle taking are both provided with blocking limiting structures, and the distance between the two blocking limiting structures is greater than the height of the guide vane.

Preferably, the push rods comprise two pairs, and a handle is arranged between the top ends of each pair of push rods.

Preferably, slide bars are arranged at two ends of the annular outer frame along the length direction of the guide piece, the slide bars extend along the direction perpendicular to the guide piece, slide holes are arranged at two ends of the guide piece along the length direction, the slide bars are arranged in the slide holes in a penetrating mode, and the guide piece can slide along the slide bars.

Preferably, the bottom of the needle is conical.

The utility model provides a pair of liquid-transfering gun head shifts device, its beneficial effect is:

the utility model provides a transfer device for a pipetting gun head, which comprises an annular frame, wherein a pipette device is arranged at the inner side of the annular frame, the pipette device comprises a plurality of guide vanes which are arranged side by side, each guide vane is provided with a plurality of through holes which run through the guide vanes along the vertical direction, and a downward extending pipette needle is arranged in each through hole; the liquid transfer gun head transfer device also comprises a gun pushing assembly, the gun pushing assembly comprises a blocking piece and a push rod, the push rod is in sliding connection with the annular outer frame along the vertical direction, the blocking piece is positioned below the guide pieces and is connected with the bottom end of the push rod, a through groove which slides along the vertical direction with the taking needle is arranged on the blocking piece, the taking needles on the guide pieces penetrate through the through groove, the width of the through groove is larger than the outer diameter of the taking needle and smaller than the diameter of the tail end of the liquid transfer gun head, when the liquid transfer gun head transfer device is used, the head end of the liquid transfer gun head is placed in order downwards, then the bottom end of the taking needle is aligned with the tail end of the liquid transfer gun head, the taking needle is inserted into the liquid transfer gun head, the outer side wall of the taking needle is supported at the opening of the tail end of the liquid transfer gun head, then the liquid transfer gun head moves along with the device, when, promote the push rod downwards, separation blade downstream because the width that leads to the groove is less than the tail end diameter of liquid-transfering gun head, consequently can scrape the liquid-transfering gun head from getting the needle when the separation blade downstream, drops in the special box body, accomplishes the transfer of liquid-transfering gun head, has replaced artifical problem of placing one, has promoted transfer efficiency greatly.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a structural diagram of a transfer device for a pipette tip according to an embodiment of the present invention;

fig. 2 is an exploded view of a transfer device for a pipette tip according to an embodiment of the present invention;

fig. 3 is a structural view of the ring-shaped outer frame according to the embodiment of the present invention;

FIG. 4 is a view of a structure of a baffle plate according to an embodiment of the present invention;

fig. 5 is a perspective structure view of the fixing guide vane according to the embodiment of the present invention;

fig. 6 is a perspective structure view of the driven guide vane according to the embodiment of the present invention;

fig. 7 is a perspective structure diagram of the active guide vane according to the embodiment of the present invention;

FIG. 8 is a drawing of a needle structure according to an embodiment of the present invention;

FIG. 9 is a view of the structure of the septum needle according to the embodiment of the present invention;

fig. 10 is a drawing showing a structure of a pipette tip according to an embodiment of the present invention.

In the figure: 1. an annular outer frame; 2. a through hole; 3. taking a needle; 4. a baffle plate; 5. a push rod; 6. a through groove; 7. fixing the guide sheet; 8. a driven guide vane; 9. an active guide vane; 10. a limit screw; 11. a limiting ring; 12. separating needles; 13. a wrench; 14. an annular limiting groove; 16. a handle; 17. a slide bar; 18. and (4) a slide hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1 to 10, the utility model provides a liquid-transfering gun head transfer device, including annular frame 1, annular frame 1 inboard can be the rectangle through groove, sets up in the rectangle through groove and gets the rifle device, gets the rifle device and can include a plurality of guide vanes that set up side by side, a plurality of guide vanes can be parallel with one of them side of rectangle through groove, can evenly set up a plurality of through-holes 2 that run through the guide vane along the vertical direction on each guide vane along the length direction of guide vane, be provided with the needle 3 of getting of downwardly extending in through-hole 2; the liquid transfer gun head transfer device also comprises a liquid transfer gun component, the liquid transfer gun component comprises a separation blade 4 and a push rod 5, the push rod 5 penetrates through the annular outer frame 1 along the vertical direction and is in sliding connection with the annular outer frame 1, the separation blade 4 is horizontally connected to the bottom end of the push rod 5, the separation blade 4 is positioned below the guide blades, a plurality of through grooves 6 sliding with the taking needle along the vertical direction can be arranged on the separation blade 4, the bottom ends of the taking needles 3 all downwards extend through the through grooves 6, the width of each through groove 6 is larger than the outer diameter of the taking needle 3 and smaller than the tail end diameter of the liquid transfer gun head, when the liquid transfer gun head transfer device is used, the head end of the liquid transfer gun head is placed downwards in order, then the bottom end of the liquid transfer needle 3 is aligned with the tail end of the liquid transfer gun head, the taking needle 3 is inserted into the liquid transfer gun head, the outer side wall of the taking needle 3 is supported at the tail end opening of the, put into special box body with the pipette head, then hold annular frame 1, promote push rod 5 downwards, separation blade 4 downstream, because the width that leads to groove 6 is less than the tail end diameter of pipette head, consequently can scrape the pipette head from getting needle 3 when separation blade 4 downstream, drop in special box body, accomplish the transfer of pipette head, replaced artifical problem of placing, promoted transfer efficiency greatly.

As an alternative embodiment, the guide vanes may include three types, one type is a fixed guide vane 7, one type is a driven guide vane 8, and one type is a driving guide vane 9, the cross section of the rectangular through groove may be rectangular, or may also be a rounded rectangle, and the like, each of the guide vanes may extend along the length direction of the rectangular through groove, and are uniformly arranged along the width direction of the rectangular through groove, for example, the fixed guide vane 7, the plurality of driven guide vanes 8 and the driving guide vane 9 may be sequentially arranged from left to right, the fixed guide vane 7 may be fixedly connected with the inner side wall of the annular outer frame 1, and may be connected by a bolt, the plurality of driven guide vanes 8 and the driving guide vane 9 may be slidably connected with the annular outer frame 1, the sliding direction may be along a direction perpendicular to the fixed guide vane 7, for example, the width direction of the rectangular through groove, the through groove 6 may be a long-bar-shaped groove, the central points of the through holes 2 on the plurality, the through grooves 6 extend in a direction perpendicular to the fixed guide 7, hereinafter referred to as rows in a direction perpendicular to the fixed guide 7 and columns in a direction parallel to the fixed guide 7, and each row of through holes 2 corresponds to one through groove 6, and when the guide slides in a direction parallel to the fixed guide, the needle can slide in the through grooves 6.

In implementation, linkage limiting devices may be disposed between the driving guide vane 9 and the adjacent driven guide vane 8, between the plurality of driven guide vanes 8, and between the fixed guide vane 7 and the adjacent driven guide vane 8, when the driving guide vane 9 is pulled in a direction away from the fixed guide vane 7, the driven guide vane 8 also moves in a direction away from the fixed guide vane 7 along with the driving guide vane 9, and when the driving guide vane 9 moves to a certain distance, the linkage limiting devices limit the continuous movement, so that the distance between the driven guide vanes 8, between the driven guide vanes 8 and the driving guide vane 9, and between the driven guide vanes 8 and the fixed guide vane 7 may be adjusted, so that the needle 3 fixed on the guide vane may be aligned with the hole on the special box, and the pipette tips may be accurately placed in the special box, for example, the number of the driven guide vanes 8 may be six, and the linkage limiting devices include limiting screws 10 and limiting rings 11, the top of each guide vane along the length direction is provided with a limit screw 10 along the vertical direction, the bottom of the limit screw 10 extends into the corresponding guide vane, the top of the limit screw extends outwards, the limit ring 11 can comprise a plurality of limit rings 11 which are arranged in a vertically staggered manner, for example, the fixed guide vane 7 can be No. 1 guide vane, the driven guide vane 8 can be No. 2 guide vane, No. 3 guide vane, No. 4 guide vane, No. 5 guide vane, No. 6 guide vane and No. 7 guide vane in sequence from the direction close to the fixed guide vane 7 to the direction far away from the fixed guide vane 7, the driving guide vane 9 can be No. 8 guide vane, the limit rings 11 are arranged in two layers which are respectively a bottom layer close to the guide vanes and a top layer above the bottom layer, in one embodiment, the limiting rings 11 are respectively sleeved outside the limit screws 10 on the No. 1 guide vane and the No. 2 guide vane on the bottom layer, the No. 3 guide vane and the No. 4 guide vane, the No. 5 guide vane and the No. 6 guide vane, the No. 7 guide vane and the, no. 2 guide vane and No. 3 guide vane of top layer, No. 4 guide vane and No. 5 guide vane, a spacing ring 11 is established to each cover in the stop screw 10 outside on No. 6 guide vane and No. 7 guide vanes, spacing ring 11 can be waist shape ring, the length of spacing ring 11 is greater than the diameter sum of two stop screw 10, when moving initiative guide vane 9 to the direction of keeping away from fixed guide vane 7, spacing ring 11 drives driven guide vane 8 and removes to the direction of keeping away from fixed guide vane 7 in proper order, stop moving when moving the maximum length of every spacing ring 11, the transverse distance of getting between the needle 3 that is connected with the guide vane this moment equals the transverse distance of placing the hole on the special box, can be accurate will be located the liquid-transfering gun head on getting needle 3 and place to placing the hole.

The above-mentioned limit screw 10 and the limit ring 11 can limit the maximum lateral distance between the guide vanes, the following structure can limit the minimum lateral distance between the guide vanes, a separating needle 12 can be arranged on each driven guide vane 8, the separating needle 12 can be in a U-shaped structure, the opening of the separating needle 12 downwardly spans on the driven guide vane 8, the top end of the separating needle 12 is detachably connected with the top end of the driven guide vane 8, the two side parts of the separating needle 12 are inserted into the two sides of the corresponding guide vane, when the driving guide vane 9 is moved in the direction close to the fixed guide vane 7, the driving guide vane 9 contacts with the separating needle 12 on the adjacent driven guide vane 8 to drive the adjacent driven guide vane 8 to move in the direction close to the driving guide vane 9, and so on, the movement is stopped until the separating needle 12 on the driven guide vane 8 adjacent to the fixed guide vane 7 contacts with the fixed guide vane 7, and the lateral distance between the guide vanes is the minimum distance at this time, the needle 3 of getting that is connected with the guide vane is adjusted well with the pipette head of arranging, is convenient for get needle 3 and inserts the pipette head, it should be said that, the cross-section that separates needle 12 can be circular, can use the needle 12 of separating of different diameters to adjust the minimum distance between each guide vane, for example can set up the fixed slot on the top of driven guide vane 8, the top that separates needle 12 is fixed in the fixed slot, or can set up the round hole on the top of guide vane, the top bottom that separates needle 12 sets up decurrent arch, the arch card is gone into and is realized fixing in the round hole.

Furthermore, foretell initiative stator 9 can set up along the gliding spanner 13 of length direction both ends of pulling initiative stator 9, and spanner 13 can be the rectangle lug, and spanner 13 protrusion is from the terminal surface of stator 8 along length direction, so sets up, and when removing initiative stator 9, spanner 13 can regard as the impetus, conveniently removes.

In the implementation, the top end and the middle part of the taking needle 3 are both provided with a blocking limiting structure, when the taking needle 3 is not in contact with the pipette tip, the taking needle 3 slides downwards along the through hole 2 under the action of self gravity, and stops when sliding to the upper blocking limiting structure to be in contact with the guide vane, when the taking needle 3 is in contact with the pipette tip, the taking needle 3 is pushed upwards, and stops when sliding to the lower blocking limiting structure to be in contact with the guide vane, the blocking limiting structure can be an inwards concave annular limiting groove 14 and an elastic retainer ring arranged in the annular limiting groove 14, the top end of the taking needle 3 penetrates out of the top of the through hole 2 upwards, the outer diameter of the elastic retainer ring is larger than the inner diameter of the through hole 2, so that the taking needle 3 can be prevented from falling out of the through hole 2, the annular groove in the middle part of the taking needle 3 penetrates through the bottom of the through hole 2 downwards, the distance between the two annular grooves is larger than the height of the guide vane, when the height of the arranged pipette tips is not consistent, each taking needle 3 can be ensured to be inserted into the pipette tips, when the pipette tips are used, the taking needles 3 are aligned with the arranged pipette tips, the annular outer frame is moved downwards, and after each taking needle 3 is in contact with the pipette tips, the top of the taking needle 3 is pressed downwards, so that the bottom of the taking needle 3 is inserted into the pipette tips.

In implementation, the above-mentioned push rods 5 can include two pairs, each pair of push rods 5 of push rod 5 can be respectively arranged on two sides of the annular outer frame 1 along the direction perpendicular to the guide vane, the two pairs of push rods 5 are symmetrically arranged on two sides of the annular outer frame 1 along the length direction, each pair of push rods 5 is provided with a handle 16, the handle 16 can be a connecting rod, two ends of the connecting rod are respectively connected with the top end of the push rod 5, after the pipette head is moved to the special box, the annular outer frame 1 can be held by hands and is fixed, the handle 16 is pressed downwards, the push rod 5 drives the blocking sheet 4 to move downwards, the pipette head on the taking needle 3 is scraped, and drops into the special box, and the transfer operation is completed.

The sliding connection between the guide vane and the annular outer frame 1 can be realized by using a sliding rod 17, two sliding rods 17 are respectively arranged at two ends of the rectangular through groove along the length direction of the guide vane, the sliding rod 17 extends along the direction vertical to the guide vane, sliding holes 18 are arranged at the positions of the guide vane corresponding to the sliding rods 17, the sliding rods 17 are arranged in the sliding holes 18 in a penetrating manner, two ends of the sliding rods are connected with the annular outer frame 1, and the guide vane can slide along the sliding rods 17.

The upper part of the taking needle 3 can be cylindrical, and the bottom part of the taking needle can be conical, so that the taking needle 3 can be stably fixed after being inserted into the pipette head, and the pipette head is prevented from deflecting.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A pipette tip transfer device, comprising:

an annular outer frame (1);

the gun taking device arranged on the inner side of the annular outer frame comprises a plurality of guide vanes arranged side by side, each guide vane is provided with a plurality of through holes (2) vertically penetrating through the guide vane, and each through hole (2) is internally provided with a needle (3) extending downwards;

push away rifle subassembly, including separation blade (4) and push rod (5), push rod (5) with annular frame (1) is along vertical direction sliding connection, separation blade (4) set up guide blade below and with push rod (5) bottom is connected, be provided with on separation blade (4) with get needle along the gliding logical groove (6) of vertical direction, the width that leads to groove (6) is greater than get the external diameter of needle (3) and be less than the tail end diameter of moving liquid rifle head.

2. The pipette head transfer device according to claim 1, wherein the plurality of guide vanes include a fixed guide vane (7) fixedly connected to the inner side of the annular frame, a driving guide vane (9) arranged parallel to the fixed guide vane (7), and a plurality of driven guide vanes (8) arranged between the driving guide vane (9) and the fixed guide vane (7), the driving guide vane (9) and the driven guide vane (8) are both slidably connected to the annular frame (1) in a direction perpendicular to the fixed guide vane (7), and the through groove (6) is a long strip-shaped groove extending in a direction perpendicular to the fixed guide vane (7).

3. The pipette tip transfer device of claim 2, wherein a linkage limiting device is arranged between the driving guide vane (9) and the driven guide vane (8), between the driven guide vanes (8), and between the driven guide vane (8) and the fixed guide vane (7).

4. The pipette tip transfer device according to claim 3, wherein the linkage limiting device comprises limiting screws (10) and limiting rings (11), the limiting screws (10) are respectively arranged at two ends of the fixed guide vane (7), the driven guide vanes (8) and the driving guide vane (9) along the length direction of the fixed guide vane, one limiting ring (11) is sleeved at the outer side of each two adjacent limiting screws (10), and the length of each limiting ring (11) is greater than the sum of the diameters of the two limiting screws (10).

5. The pipette tip transfer device of claim 2, wherein a needle (12) is arranged between every two adjacent guide vanes, and the guide vanes are detachably connected with the needle (12).

6. The pipette head transfer device according to claim 2, wherein both ends of the active guide (9) in the length direction are provided with wrenches (13) for pulling the active guide (9) to slide.

7. The pipette tip transfer device according to claim 1, wherein the top end and the middle part of the needle (3) are provided with a stop limit structure, and the distance between the two stop limit structures is larger than the height of the guide vane.

8. Pipetting gun head transfer device according to claim 2, characterized in that the push rods (5) comprise two pairs, between the tips of the push rods (5) of each pair being provided a handle (16).

9. The pipette head transfer device according to claim 1, wherein slide bars (17) are disposed at both ends of the annular frame (1) along the length direction of the guide, the slide bars (17) extend along a direction perpendicular to the guide, slide holes (18) are disposed at both ends of the guide along the length direction, the slide bars (17) are inserted into the slide holes (18), and the guide can slide along the slide bars (17).

10. Pipetting gun head transfer device according to claim 1, characterized in that the bottom of the needle (3) is conical.

Images