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Manufacturing method of pipette tip packing device

发布日期:2019-12-27 17:11 Document serial number: 19546541 Release date: 2019-12-27 17:11
Manufacturing method of pipette tip packing device

The utility model belongs to the technical field of biochemical experiment auxiliary tools, and in particular relates to a pipetting device for pipette tips.



Background technique:

In biochemical experiments, a large number of pipette tips will be consumed. Tips need to be packed into the tip box when in use. Labs usually purchase tips in packages when purchasing tips. For example, a 1,000-ul tip is often sold in packages of 1,000. When a 1000-ul tip is used, the tip box is usually a tip box with 60 tip jacks. At present, automatic tip cartoning machines appear on the market, but the price of cartoning machines is high. In the laboratory, in order to save economic costs, manual filling is usually used to insert the tips to achieve filling, but manual filling is used. A lot of time and labor costs.

The tip usually has a head located at the upper part and a tip located at the middle and lower part, and the outer diameter of the head is larger than the outer diameter of the tip so that the head can be caught on the tip insertion hole so that the tip cannot fall completely In the tip socket, at the same time, the head is also the position where the pipette inserts the tip.



Technical realization elements:

The purpose of the utility model is to overcome the shortcomings of the prior art and provide a simple, economical and practical pipette tip boxing device.

The technical scheme of the utility model is as follows:

The utility model relates to a pipetting device for pipettes of a pipette, which is simply referred to as a boxing device. The pipetting device includes a flat guide channel, a slanted guide channel inclined downward, a closed gate at the rear end, and a gate at the rear. In the case of a packer below a channel, the widths of the flat flow channel and the inclined flow channel are smaller than the outer diameter of the tip head, and the length and width of the notch are larger than the outer diameter of the tip head. ;

The dispenser comprises a plurality of dispenser lanes arranged in a row in the left-right direction, and a lower outlet of one of the dispenser lanes faces a tip insertion hole in the tip box.

Further, the boxing device further includes a front box body provided with a plurality of flat flow guides on the bottom plate, and an inclined flow guide portion provided with a plurality of inclined flow guides, the inclined flow guide and the front box body Turn the connection.

Further, the boxing device further includes a mouth opening portion provided with a plurality of mouth openings, and the mouth opening portion is rotatably connected to the inclined flow guiding portion.

Further, the width of the flat flow channel is greater than 1 mm and smaller than the width of the inclined flow channel.

Further, the size of the dispensing lane gradually decreases from top to bottom and then increases, and the diameter of the dispensing lane is always greater than the outer diameter of the head of the suction head by more than 1 mm.

Further, the dispenser includes a side inlet that can be accessed by a suction head dropped from a nozzle, and an upper part of the dispenser includes partitions provided on the left and right sides of a single dispenser, and a single dispenser. The rear panel is installed on the rear side, and the two partitions and the rear panel are used to surround the side inlet.

Further, a front baffle is provided on a front side of each of the sub-packing lanes, and a back baffle is provided on a rear side of each of the sub-packing lanes, and a distance from the front baffle and the back baffle to a bottom end of the partition plate Greater than the height of the tip of the tip.

Further, the length of the notch is 1.5 to 3 times the outer diameter of the head of the tip.

Further, a stopper which is wholly or partly suspended from the end of the downfall channel is provided above the downfall channel, and the position of the stopper does not exceed the position of the tip of the tip when the suction head enters the downfall channel.

The method of using the utility model is as follows: firstly, a certain amount of suction heads are installed in the front box body, and the front box body is shaken or shaken by hand or a ruler-like strip until part of the suction heads lie in the flat flow channel, If the width of the flat runner is larger than the diameter of the tip and smaller than the diameter of the head, the suction head will be vertically arranged in the flat runner, and the suction head will be manually pushed backward into the inclined runner, and the suction head will automatically slide down and finally Drop it vertically into the dispenser from the nozzle. The dispenser will accurately introduce the tip into the tip socket of the tip box, complete the packing of the tip once, and move the tip box forward or backward. Until the lower outlet is aligned with the tip insertion holes in the next row or row, repeat the aforementioned tip loading operation until the box loading of the whole box is completed.

Compared with the prior art, the beneficial effects of the present utility model are:

The utility model can realize the batch packing of the suction tips under artificial conditions, and can realize the filling of one row or a row of suction tips at one time. The utility model has the advantages of simple structure, easy manufacturing, low manufacturing cost, reusable, economical and practical. Precise box saves time for manual boxing, improves tip boxing efficiency, and saves preparation time for experimental preparation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a schematic view of installing a stopper in Embodiment 1 of the present invention.

FIG. 3 is a schematic structural diagram of a dispenser according to Embodiment 1 of the present invention.

FIG. 4 is a schematic structural diagram of a single dispensing lane in FIG. 2.

FIG. 5 is a bottom view of a single dispensing lane according to Embodiment 2 of the present invention.

In the figure, the front box body 1, the flat guide channel 2, the oblique guide section 3, the oblique guide channel 4, the notch 5, the notch 6, the stopper 7, the stopper rod 8, and the dispenser 9 , Side inlet 10, rear plate 11, side plate 12, partition 13, guide body 14, front baffle 15, snap member 16, back baffle 17, lower outlet 18, sub-assembly channel 19, bracket 20.

detailed description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by a person having ordinary skill in the art without making creative work belong to the protection scope of the present invention.

Example 1

As shown in Fig. 1, Fig. 2, Fig. 3, and Fig. 4, a pipetting device for pipettes of a pipette, referred to as a boxing device for short, includes a flat flow channel 2, which is connected in an order from front to back, and an oblique downward slope The widths of the diversion channel 4, the closed-end drop channel 6, and the dispenser 9 disposed below the drop channel 6, the widths of the flat flow channel 2 and the inclined flow channel 4 are smaller than the outer diameter of the head of the nozzle. The length and width of the notch 6 are larger than the outer diameter of the head of the nozzle;

The dispenser 9 includes a plurality of dispenser lanes 19 arranged in a row in the left-right direction, and a lower outlet 18 of one dispenser lane 19 faces a tip insertion hole in the tip box.

As shown in FIG. 1, the boxing device further includes a front box body 1 on the bottom plate provided with a plurality of flat flow guides 2, and an inclined flow guide 3 provided with a plurality of inclined flow guides 4. The inclined flow guide 3 and the front The box body 1 is hinged so that the inclined flow guide part 3 can rotate relative to the rear end of the front box body 1. The end of the inclined flow guide part 3 is connected to the opening part 5 which is supported by the dispenser 9 At the same time that the height of the notch portion 5 is adjusted, the oblique diversion portion 3 moves with the movement of the notch portion 5, so that the inclination of the oblique diversion portion 3 can be adjusted.

Optionally, the oblique flow guide 3 is hooked at the end of the front box 1, and the width of the oblique flow guide 3 is slightly smaller than the width of the front box 1 so that the oblique flow guide 3 can be detached from the front box 1 and stored. The front box body 1 is advantageous for reducing the occupied space and facilitating storage of the utility model when not in use.

As shown in FIG. 4, the cartoning device further includes a mouthpiece portion 5 provided with a plurality of mouthpiece channels 6. The mouthpiece portion 5 is rotatably connected to the inclined flow guiding portion 3. Preferably, the mouthpiece portion 5 and the inclined flow guiding portion 3 are connected. 3 is provided with a flexible connecting piece. The flexible connecting piece may be formed by reducing the thickness of the connection portion between the notch portion 5 and the inclined flow guiding portion 3, or it may be a flexible and sticky sheet on one side, such as plastic Tapes, paper tapes, electrical tapes, etc. can be attached to sheets, and the flexible connection between the notch portion 5 and the oblique flow guide 3 makes the angle between the notch portion 6 and the oblique flow guide 3 adjustable.

The rear end of the dispenser 9 is provided with a latching member 16 whose socket faces forward and is compatible with the thickness of the rear end of the drop-out portion 6 so that the drop-out portion 6 can be plugged or hook-connected to the latching piece 16. In the utility model, the rear end of the mouth opening portion 6 can be inserted into the fastening member 16 to fix the rear end of the mouth opening portion 6.

The purpose of the flat runner 2 is to initially arrange the suction heads so that the directions of the tips are consistent. Preferably, the width of the flat runner 2 is larger than 1 mm and smaller than the width of the inclined runner 4.

As shown in FIG. 3 and FIG. 4, the dispenser 9 includes side plates 12 divided on the left and right sides, a partition plate 13 disposed between the side plates 12 in parallel and spaced apart, and disposed inside the partition plate 13 and the side plate 12. A guide body 14, a rear plate 11 provided on the upper portion of the packer 9 and connecting two adjacent partition plates 13 or 13 to the side plate 12, and a bracket 20 provided on the lower portion of the packer 9, the guide body 14 is used for In the middle and upper sections forming the dispensing lane 19, the space surrounded by the partition 13 or the side plate 12 forms the lower segment of the dispensing lane 19. The structure of the upper part of the dispenser 9 determines that the tip can be moved from the top of the dispensing lane 19 Or the front end of the upper part enters a single sub-packing lane 19, and the inlet of the sub-packing lane 19 is a side inlet 10.

Preferably, as shown in FIG. 3 and FIG. 4, a front baffle 15 is provided on the front side of each of the distribution lanes 19, and a rear baffle 17 is provided on the rear side of each of the distribution lanes 19. The distance from the baffle 17 to the bottom end of the partition 13 is greater than the height of the head of the tip, so that the front baffle 15 and the back baffle 17 will not The front baffle 15 is at least equal to the length of the tip of the tip so that the front baffle 15 does not prevent the tip from entering the dispensing path 19 from the front side, and It is possible to prevent the suction head from coming out of the dispensing lane 19 from the front side of the dispensing lane 19 when the tip is dropped, and the upper end of the tailgate (17 is connected to the rear plate 11).

Preferably, as shown in FIG. 4, the size of the upper section of the sub-packing lane 19 gradually decreases from top to bottom, and the size of the lower end of the sub-packing lane 19 is larger than the size of the lowermost part of the middle of the packing lane 19. The vertical cross-sectional shape of the upper section of 19 is an inverted trapezoid. The purpose is to align the tip with the tip insertion hole during the drop process. The vertical cross-sectional shape of the lower section of the dividing channel is a vertical rectangle. The purpose is to leave enough width for the The head behind the tip jack; the size of the dispensing lane 19 is always larger than the outer diameter of the tip head or the distance from the edge of the external polygon to the center is more than 1mm to facilitate the tip to smoothly and quickly fall into the tip jack.

Preferably, the length of the entrance channel 6 is 1.5 to 3 times the outer diameter of the tip of the tip, and the entrance channel is sufficiently large to ensure that the tip falls off smoothly.

Optionally, as shown in FIG. 1 and FIG. 2, a stopper 7 suspended entirely or partially from the end of the downfall channel 6 is provided above the downfall channel 6, and the position of the stopper 7 does not exceed when the suction head enters the downhole At the position of the tip of the tip in lane 6, the stopper 7 is supported by the stopper rods 7 provided on both sides of the landing channel 6. The stopper 7 is elastic and can rebound the tip slightly to prevent the upper end of the tip from being caught in the drop. Mouth to the edge of 6.

Example 2

This embodiment is another implementation based on Embodiment 1. The description of the same technical solution of Embodiment 1 will be omitted, and only the technical solution different from Embodiment 1 will be described. This embodiment 2 is different from the embodiment 1 in that the guide body 14 in this embodiment 2 is different.

As shown in FIG. 1 and FIG. 5, the guide body 14 corresponding to the single dispensing lane 19 may be integrated. Preferably, the hollow shape in the middle of the cross section of the guide body 14 is circular.

Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some of the technical features. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

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