Device for automatically placing pipette tip

Abstract

The utility model relates to the technical field of pipette tip inserting plate arrangement, in particular to a device for automatically placing pipette tips, and aims to solve the problem of low manual boxing efficiency in the prior art. A vibration piece and a corresponding driving mechanism are arranged in a base, a vibration box with the bottom connected to the vibration piece is arranged above the base, the interior of the vibration box is used for containing a pore plate, a sliding rail is arranged on the side edge of the vibration box, a vibration disc is slidably connected to the sliding rail, and an elastic piece is arranged on the sliding rail and used for supporting the vibration disc. And a certain distance is kept between the vibration disc and the vibration box. A clamping groove is formed in the inner side wall of the vibration disc, a screen plate matched with the clamping groove is inserted into the front end of the vibration disc, a penetrating groove is formed in the side portion of the vibration disc, and a partition plate is inserted into the penetrating groove. The whole device adopts a mechanical and manual mode, can efficiently meet the requirement for placing the gun heads, is simple in structure and low in cost, and has an obvious price advantage compared with full-automatic products on the market which merge tens of thousands of tens of thousands of selling prices.

Description

Technical Field

[0001] The utility model relates to the technical field of gun tip inserting plate arrangement, in particular to a device for automatically placing liquid transfer gun tips. Background Art

[0002] A pipette is a common handheld device used in medical testing, biopharmaceuticals, chemical analysis and other laboratories to transfer precise amounts of liquid from one container to another. A pipette (micropipette) is a type of pipette, commonly used to transfer small or trace amounts of liquid in laboratories. Different specifications of pipettes are equipped with different sizes of gun tips.

[0003] The front part of the existing pipette gun tip is a conical structure, and the rear part is a cylindrical gun body connection part with an outer diameter slightly larger than the front part; when the gun tip is installed on the plate, its front end is downward, and the staff needs to manually insert the gun tip vertically into the gun tip insertion hole on the gun tip carrier plate one by one, and the gun body connection part of the gun tip is stuck on the gun tip carrier plate. A box of pipette gun tips contains 96 pieces. As the amount of experimental tasks increases, the use of gun tips increases dramatically. An experimenter will use about 3 / 4 of a box of gun tips every day; and the existing boxing of gun tips is all done manually. A skilled person can manually insert a box of gun tips in about 3 minutes at the fastest. Long-term repeated operations will reduce the speed to about 5 minutes per box. Therefore, 14 boxes take about 1 hour. The whole process consumes a lot of energy and time, and the boxing efficiency is low. Utility Model Content

[0004] Based on the above description, the utility model provides a device for automatically placing pipette tips to solve the problem of low efficiency of manual box loading in the prior art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A device for automatically placing a pipette tip, comprising:

[0007] A base, wherein a vibrating member is arranged inside the base;

[0008] A vibration box, which is arranged on the base and is a box body with a front opening connected to the vibration element;

[0009] A slide rail is arranged on the vibration box and has an elastic member arranged thereon;

[0010] A vibration plate is slidably connected to the slide rail, the elastic member provides support for the vibration plate, and a through groove is provided on the side of the elastic member;

[0011] A screen plate, on which a plurality of guide rails with open ends are provided, and the screen plate is horizontally plugged into the front end of the vibrating plate;

[0012] The partition plate is inserted into the through groove and is located below the sieve plate. It forms a plurality of equally spaced partition plates. The ends of the partition plates are formed with sharp corners, and the length gradually shortens from the front end to the rear end of the sieve plate.

[0013] On the basis of the above technical solution, the present invention can also be improved as follows.

[0014] Furthermore, sliding rods are provided at the four corners of the top surface of the vibration box, the vibration disk is sleeved on the sliding rods, a limiting block located above the vibration disk is provided on the top of the sliding rod, and a first spring sleeved on the sliding rod is provided between the vibration box and the vibration disk.

[0015] Furthermore, a latch is provided on the top of the limit block, and a transparent cover is sleeved on the latch.

[0016] Furthermore, the vibration plate is a U-shaped frame with an open front end, and a slot is provided on the inner side wall thereof, and the sieve plate is plugged into and matched with the slot.

[0017] Furthermore, a buckle is provided on the side of the vibration box, and after the vibration plate compresses the first spring to move downward, the buckle limits the vibration plate to fix it.

[0018] Furthermore, an air outlet for blowing air toward the front end is arranged at the rear end of the vibration plate, a fan is arranged in the base, and the fan is connected to the air outlet through an air duct.

[0019] Furthermore, second springs connected to the base are arranged at the four bottom corners of the vibration box.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0021] This solution designs a vibrating structure so that the gun heads can fall onto the guide rail of the screen plate, and then the gun heads are gathered and separated into rows by partition plates. The combination of the guide rail and the partition plate allows the gun heads to spread out in an array corresponding to the orifice plate, and then the gun heads are pressed down to partially enter the holes of the orifice plate. Finally, the screen plate and the partition plate are pulled out from the side, and the gun heads fall into the orifice plate in batches. The entire device uses a mechanical and manual method, which can efficiently handle the requirements for gun head placement. It has a simple structure and low cost, and has obvious price advantages compared to the fully automatic products on the market that cost tens of thousands or even hundreds of thousands of yuan. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a device for automatically placing a pipette tip provided in an embodiment of the utility model;

[0023] Figure 2 for Figure 1 The schematic diagram of the structure after the transparent cover is hidden in the middle;

[0024] Figure 3 for Figure 2 Explosion diagram of

[0025] Figure 4 for Figure 2 Schematic diagram of the structure from the back perspective;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Base; 2. Vibration box; 3. Vibration plate; 4. Through slot; 5. Screen plate; 6. Guide rail; 7. Partition plate; 8. Divider plate; 9. Slide bar; 10. Limit block; 11. First spring; 12. Transparent cover; 13. Buckle; 14. Air outlet; 15. Air duct; 16. Second spring; 17. Orifice plate; 18. Gun head. DETAILED DESCRIPTION

[0028] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0030] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0031] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0032] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0033] like Figure 1-4 The device shown is used for automatically placing a pipette tip 18, comprising a base 1, a vibrating member and a corresponding driving mechanism are arranged inside the base 1, a vibrating box 2 is arranged above the base 1, the front end of the vibrating box 2 is open, and the bottom is connected to the vibrating member, the driving mechanism drives the vibrating member to shake the vibrating box 2, and the bottom four corners of the vibrating box 2 are provided with a second spring 16 connected to the base 1. The inside of the vibrating box 2 is used to place a perforated plate 17, and a slide rail is arranged on the side of the vibrating box 2, and a vibrating disk 3 is slidably connected to the slide rail. An elastic member is arranged on the slide rail to support the vibrating disk 3 so that the vibrating disk 3 and the vibrating box 2 maintain a certain distance. The vibrating disk 3 is a U-shaped structure with an open front end, and a card slot is arranged on the inner side wall thereof, and a sieve plate 5 matching the card slot is inserted from the front end, and a through slot 4 is opened on the side of the vibrating disk 3, and a partition plate 7 is inserted in the through slot 4, and the height of the partition plate 7 is less than the sieve plate 5.

[0034] A number of equally spaced partitions 8 are formed on the partition plate 7, and the ends of the partition plates 8 are formed with sharp corners, and the length gradually shortens from the front end to the rear end of the sieve plate 5. A number of guide rails 6 with openings at the rear ends are provided on the sieve plate 5, and a slot structure is formed between the guide rails 6. A gun head 18 is placed on the sieve plate 5, and the gun head 18 can gradually fall into the slot structure under the action of vibration. The top edge of the gun head 18 is hung in the slot structure, and the gun heads 18 in different slots are moved closer to the front end by manual movement or other means. Subsequently, the partition plate 7 is inserted into the through groove 4, and the partition plates 8 on the partition plate 7 will gradually be inserted into the gap of the gathered gun heads 18 from front to back. As the partition plates 8 are continuously inserted, the gun heads 18 in different slots will be separated to the width of the partition plates 8, and the secondary width just corresponds to the spacing of the orifice plates 17. The orifice plate 17 prevents the gun head 18 from being scattered on the sieve plate 5 after being separated by the partition plate 7 in the vibration box 2. The distance between the front and rear of the gun head 18 is determined by the partition plate 8, and the distance between the left and right of the gun head 18 is determined by the sieve plate 5. Then press the sieve plate 5 or the vibration plate 3 downward so that the bottom of the gun head 18 enters the corresponding hole of the orifice plate 17. Finally, keep the vibration plate 3 close to the orifice plate 17. At this time, most of the gun head 18 is inserted into the orifice plate 17, and the sieve plate 5 and the partition plate 7 are pulled out of the vibration plate 3. After the gun head 18 loses the limit of the guide rail 6, it completely falls into the hole of the orifice plate 17, completing the batch placement. If gun heads 18 of different specifications are placed, they can be replaced with sieve plates 5 and partition plates 7 of corresponding specifications.

[0035] Specifically, slide bars 9 are provided at the four corners of the top surface of the vibration box 2, and the vibration disk 3 is sleeved on the slide bars 9. A limit block 10 located above the vibration disk 3 is provided on the top of the slide bars 9. A first spring 11 sleeved on the slide bars 9 is provided between the vibration box 2 and the vibration disk 3. The first spring 11 pushes the vibration disk 3 upward until it is limited by the limit block 10, thereby maintaining the distance between the vibration disk 3 and the vibration box 2. At this time, the bottom of the gun head 18 mounted on the guide rail 6 will not enter the hole of the orifice plate 17, which is convenient for the operation of first bringing the gun head 18 closer and then equidistantly separating them. When pressing the vibration disk 3 downward, in order to facilitate the user to free up his hands to pull out the screen plate 5 and the partition plate 7, a buckle 13 can be provided on the side of the vibration box 2. After the user presses the vibration disk 3 to compress the first spring 11 downward, the buckle 13 limits the vibration disk 3 to fix it, and then the screen plate 5 and the partition plate 7 can be easily pulled out.

[0036] Preferably, a latch is provided on the top of the limit block 10, and a transparent cover 12 is sleeved on the latch. The transparent cover 12 can prevent the gun head 18 above the sieve plate 5 from being vibrated and ejected, and the arrangement of the internal gun head 18 can be better observed.

[0037] When some small-sized gun heads 18 are loaded, many guide rails 6 need to be designed. If the gun heads 18 are gathered together manually, the efficiency is relatively low. Therefore, the present solution is improved to provide an air outlet 14 for blowing air toward the front end at the rear end of the vibration disk 3, and a fan is provided in the base 1. The fan and the air outlet 14 are connected through an air duct 15. After the vibration is completed, the transparent cover 12 is opened, and the air outlet 14 blows the gun heads 18 on each track toward the front end to bring them together.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for automatically placing a pipette tip, characterized in that: include: A base, wherein a vibrating member is arranged inside the base; A vibration box, which is arranged on the base and is a box body with a front opening connected to the vibration element; A slide rail is arranged on the vibration box and has an elastic member arranged thereon; A vibration plate is slidably connected to the slide rail, the elastic member provides support for the vibration plate, and a through groove is provided on the side of the elastic member; A screen plate, on which a plurality of guide rails with open ends are provided, and the screen plate is horizontally plugged into the front end of the vibrating plate; The partition plate is inserted into the through groove and is located below the sieve plate. It forms a plurality of equally spaced partition plates. The ends of the partition plates are formed with sharp corners, and the length gradually shortens from the front end to the rear end of the sieve plate.

2. A device for automatic placement of pipette tips according to claim 1, characterized in that: Slide bars are arranged at four corners on the top surface of the vibration box, the vibration disk is sleeved on the slide bars, a limit block located above the vibration disk is arranged on the top of the slide bars, and a first spring sleeved on the slide bars is arranged between the vibration box and the vibration disk.

3. A device for automatic placement of a pipette tip according to claim 2, characterized in that: A latch is arranged on the top of the limit block, and a transparent cover is sleeved on the latch.

4. A device for automatic placement of pipette tips according to claim 1, characterized in that: The vibration plate is a U-shaped frame with an open front end, and a slot is arranged on the inner side wall thereof, and the sieve plate is plugged into and matched with the slot.

5. A device for automatic placement of pipette tips according to claim 1, characterized in that: The side of the vibration box is provided with a buckle, and after the vibration plate compresses the first spring to move downward, the buckle limits the vibration plate to fix it.

6. A device for automatic placement of pipette tips according to claim 1, characterized in that: The rear end of the vibration plate is provided with an air outlet for blowing air toward the front end, and a fan is provided in the base, and the fan is connected to the air outlet through an air duct.

7. A device for automatic placement of pipette tips according to claim 1, characterized in that: The four corners of the bottom of the vibration box are provided with second springs connected to the base.

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