Semi-automatic filling box for pipette heads

Abstract

The utility model relates to a pipette tip semi-automatic filling box, its structure comprises a pipette tip box body, a pipette tip box cover, a pore plate, a vacuum pump and a connecting pipe, the pipette tip box body has a certain depth to accommodate the pipette tip, the pore plate is located at the top of the pipette tip box body, the pore plate is provided with a plurality of pipette tip holes, and the pipette tip box cover is provided with a vacuum pump. The gun head box cover is used for being buckled to the top of the gun head box body, a vacuum connecting opening is formed in the side wall of the gun head box body and detachably connected with a connecting pipe, and an inner cavity of the gun head box body is communicated with a vacuum pump through the connecting pipe. The pipette head rapid boxing device can rapidly achieve filling of pipette heads, is simple in structure, small in size and convenient to use, does not need to be provided with a pipette head rapid boxing device which is large in size and complex in structure, and is suitable for being used in a laboratory.

Description

Technical Field

[0001] The utility model relates to a pipette tip box, in particular to a semi-automatic filling box for pipette tips. Background Art

[0002] Currently, pipettes are commonly used in the research and development of the biopharmaceutical and biological product industries to accurately measure samples. This is especially true in laboratories where small sample volumes require precise measurement. Pipettes are the primary tool for storing various buffer solutions and samples. The pipette tip box serves as a carrier for neatly loading pipette tips, providing great convenience for installing pipette tips. However, each time the tips in the tip box are used up, refilling the tips is a meticulous and time-consuming process. It requires manual effort to align the pipette tip with the tip hole and correctly load the tips into the tip box one by one. For laboratories with large sample processing volumes, refilling tips every day becomes a tedious, boring, and time-consuming process.

[0003] In order to quickly load pipette tips into the tip box, various pipette tip quick boxing devices have been proposed in the prior art, such as CN202321301698.1, which discloses a pipette tip quick boxing device, including a frame, a feed box arranged on one side of the upper surface of the frame, a first vertical frame arranged on one side of the frame, and a second vertical frame arranged on the other side surface of the frame. A synchronous boxing mechanism is arranged between the first vertical frame and the second vertical frame on the upper side of the conveyor belt, and the synchronous boxing mechanism includes a horizontal frame, which is arranged between the first vertical frame and the second vertical frame. The horizontal frame is connected to the first vertical frame through a translation structure, and the operation port is arranged in the middle of the horizontal frame. Multiple groups of adsorption tubes are equidistantly arranged in the operation port, and adsorption heads are equidistantly arranged on the multiple groups of adsorption tubes. The adsorption tubes are rotatably connected to the horizontal frame through an angle adjustment structure. A uniform discharging mechanism is provided on one side surface of the feed box. The utility model can simultaneously adsorb and fix multiple rows of pipette tips and box them at one time, with high boxing efficiency and continuous and uniform discharging to ensure boxing efficiency.

[0004] However, the existing quick box loading device for pipette tips is complex in structure and large in size, and is not suitable for laboratory use. Utility Model Content

[0005] The purpose of the utility model is to provide a semi-automatic filling box for pipette tips, so as to solve the problems that the existing quick box filling device for pipette tips is complex in structure, large in size and not suitable for laboratory use.

[0006] The utility model discloses a semi -automatic filling box of pipette gun head, including gun head box body, gun head box lid, orifice plate, vacuum pump and connecting pipe, the gun head box body has a certain depth to accommodate pipette gun head, the orifice plate is located at the top of gun head box body, is provided with a plurality of gun head holes on the orifice plate, the gun head box lid is used for buckling on the top of gun head box body, is provided with vacuum connection mouth on the lateral wall of gun head box body, vacuum connection mouth is detachably connected with connecting pipe, the inner chamber of gun head box body communicates with vacuum pump through connecting pipe.

[0007] As the further improvement of the utility model semi -automatic filling box of pipette gun head, the vacuum connection mouth is the tubular structure that protrudes at the gun head box body outer wall, is provided with sealing ring in the vacuum connection mouth, is provided with the plug -in connector at the end of connecting pipe, and the plug -in connector inserts into the vacuum connection mouth.

[0008] As the further improvement of the utility model semi -automatic filling box of pipette gun head, still include sealing plug, when connecting pipe and vacuum connection mouth are disconnected, use sealing plug and insert the vacuum connection mouth to seal the vacuum connection mouth.

[0009] As the further improvement of the utility model semi -automatic filling box of pipette gun head, the vacuum pump is small -size vacuum pump.

[0010] As the further improvement of the utility model semi -automatic filling box of pipette gun head, the orifice plate and the gun head box body are detachably connected.

[0011] As the further improvement of the utility model semi -automatic filling box of pipette gun head, the connecting pipe is flexible silica gel pipe.

[0012] As the further improvement of the utility model semi -automatic filling box of pipette gun head, the gun head hole is the taper hole.

[0013] The utility model discloses the improvement to pipette gun head box, and the gun head box body can be connected with vacuum pump quickly, and the inner chamber of gun head box body forms the negative pressure, under the action of negative pressure, and the outside air enters the inner chamber of gun head box through the gun head hole on the orifice plate, thereby forms the negative pressure airflow at each gun head hole, and the pipette gun head of end close gun head hole is inhaled to the gun head hole through the negative pressure airflow, thereby realizes the quick filling of pipette gun head.

[0014] The pipette tip semi-automatic filling box of the utility model is placed by turning over, the orifice plate gradually approaches the pipette tip and continuously shakes the filling box, and the pipette tip approaches the tip hole under the action of negative pressure airflow.

[0015] When the filling of the tip is completed, the tip box body is placed in a normal direction, the vacuum pump is closed, the connecting pipe is pulled out, the sealing plug is plugged on the vacuum connection port, the tip box cover is covered, and the filling of the tip is completed.

[0016] The utility model can quickly realize the filling of the pipette tip, has simple structure, small size and convenient use, does not need to be equipped with the pipette tip fast filling box device with large size and complicated structure, and is suitable for laboratory use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure diagram of the utility model.

[0018] Figure 2 It is the schematic diagram of the pipette tip of the utility model after filling.

[0019] Figure 3 It is the top view of the pipette tip filling process of the utility model.

[0020] In the drawing: 1, tip box body;2, tip box cover;3, vacuum pump;4, connecting pipe;5, orifice plate;6, vacuum connection port;7, plug-in head;8, tip hole;9, pipette tip;10, sealing plug. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model will be described below in combination with the drawings.

[0022] As shown in Figure 1 , Figure 2 The utility model is a pipette tip 9 semi-automatic filling box, and the structure specifically comprises a tip box body 1, a tip box cover 2, an orifice plate 5, a vacuum pump 3, a connecting pipe 4 and the like.

[0023] The gun head box body 1 is specifically a rectangular box body structure, the hole plate 5 is located at the top of the gun head box body 1, a plurality of gun head holes 8 are formed on the hole plate 5, the gun head holes 8 are arranged in a rectangular array, and the inner cavity of the gun head box body 1 has a certain depth, so that when the pipette gun head 9 is inserted into the gun head hole 8 of the hole plate 5, the gun head box body 1 can accommodate the part of the pipette gun head 9 that extends in.

[0024] A fastening edge is arranged at the bottom of the gun head box cover 2 and the top of the gun head box body 1, so that the gun head box cover 2 and the gun head box body 1 can be tightly fastened together. The gun head box cover 2 has a certain height, so that when the pipette gun head 9 is inserted into the gun head hole 8 of the hole plate 5, the gun head box cover 2 can accommodate the part of the pipette gun head 9 that is exposed.

[0025] The vacuum connection port 6 is arranged on the side wall of the gun head box body 1, and is generally not arranged on the bottom plate of the gun head box body 1, so that the gun head box body 1 can be placed stably. The connection pipe 4 is connected to the vacuum connection port 6, the inner cavity of the gun head box body 1 is communicated with the vacuum pump 3 through the connection pipe 4, and a certain negative pressure can be formed in the inner cavity of the gun head box body 1 through the vacuum pump 3. Under the action of the negative pressure, external air enters the inner cavity of the gun head box body 1 through the gun head hole 8 of the hole plate 5, so that the pipette gun head 9 near the hole plate 5 is sucked into the gun head hole 8 in a certain direction, so as to realize the rapid filling of the pipette gun head 9 into the gun head box.

[0026] The connection pipe 4 and the vacuum connection port 6 are detachably connected. When the pipette gun head 9 needs to be filled under the action of negative pressure, the connection pipe 4 is connected to the vacuum connection port 6. When the filling is not needed, the vacuum connection port 6 is sealed by using the sealing plug 10.

[0027] The sealing plug 10 is specifically made of silica gel.

[0028] The vacuum connection port 6 is a tubular structure protruding from the outer wall of the gun head box body 1, a sealing ring is arranged in the vacuum connection port 6, and a plug-in head 7 is arranged at the end of the connection pipe 4. The plug-in head 7 is inserted into the vacuum connection port 6, and the sealing ring ensures the sealed connection between the connection pipe 4 and the vacuum connection port 6.

[0029] In order to facilitate use, the vacuum pump 3 is a small vacuum pump 3. The small vacuum pump 3 on the market has small volume and large air suction rate, and the pipette gun head 9 has small volume and mass. The small vacuum pump 3 on the market can meet the use requirement.

[0030] The connection pipe 4 is a flexible silica gel pipe, and specifically a silica gel pipe with a Shore hardness of 40-70 can be used. The pipe wall can withstand the internal vacuum state when the vacuum pump 3 works, and the gun head box body 1 connected with the connection pipe 4 can also be conveniently moved and changed in posture within a certain range.

[0031] Since the pipette tip 9 has different specifications, different tip boxes can be made for different specifications of the pipette tip 9, or the hole plate 5 and the tip box body 1 can be designed to be detachably connected, and different hole plates 5 can be replaced to adapt to different specifications of the pipette tip 9. The diameters of the tip holes 8 on different hole plates 5 are different.

[0032] The tip hole 8 is a tapered hole with a large upper end and a small lower end. On the one hand, it facilitates the entry of the pipette tip 9, and on the other hand, it can effectively fit the tapered outer wall of the pipette tip 9.

[0033] The pipette tip 9 includes a tapered cone tube portion and a cylindrical connecting portion. The diameter of the connecting portion is greater than the maximum diameter of the cone tube portion. The diameter of the tip hole 8 should be between the maximum diameter and the minimum diameter of the cone tube portion. In this way, the cone tube portion of the pipette tip 9 can smoothly enter the tip hole 8, while the connecting portion of the pipette tip 9 cannot enter the tip hole 8.

[0034] In the initial state, the tip box cover 2 is sealed and fitted on the tip box body 1, the sealing plug 10 seals the vacuum connection port 6, and the tip box body 1 is empty of pipette tips 9. When performing pipette tip 9 state operations, remove the sealing plug 10, connect the vacuum connection port 6 to the vacuum pump 3 through the connecting pipe 4, place the plastic bag containing the pipette tips 9 in a horizontal state with the bag opening, or place the pipette tips 9 on a flat surface, remove the tip box cover 2 and start the vacuum pump 3, and place the semi-automatic filling box of the pipette tip 9 of the utility model on its side and continuously shake it. The hole plate 5 is close to the pipette tip 9. Under the action of negative pressure airflow, the pipette tip 9 approaches the tip hole 8. If the small end of the tip is close to the tip hole 8, the pipette tip 9 is easily sucked into the tip hole 8. Although the lower end of the pipette tip 9 is open, it is stable in the tip hole 8 under the action of negative pressure. If the large end of the tip is close to the tip hole 8, the tip cannot be sucked into the tip hole 8 because the diameter of the large end is greater than the diameter of the tip hole 8, and it cannot be stably adsorbed at the tip hole 8. With the shaking of the box body, the tip will automatically fall until the next tip is sucked into the tip hole 8 in the correct direction.

[0035] The inclined tip will gradually adjust its position under the action of airflow to make one end close to the tip hole 8. During the adsorption and filling process, the position of the tip box can be adjusted at will to make the hole plate 5 face the tip, facilitating the suction of the tip. During the adsorption and filling process, the pitch angle of the tip box is adjusted to make the tip enter different rows of tip holes 8.

[0036] Through the above filling process, all or most of the tip holes 8 on the hole plate 5 can be filled with tips, and individual tip holes 8 without tips can be manually supplemented, thereby realizing the rapid filling of the pipette tip 9.

[0037] When the filling of the gun head is completed, the gun head box body 1 is placed in the positive direction, the vacuum pump 3 is closed, the connecting pipe 4 is pulled out, the sealing plug 10 is plugged on the vacuum connection port 6, the gun head box cover 2 is covered, and the filling of the gun head is completed.

[0038] The gun head box body 1 and the gun head box cover 2 are made of high-temperature-resistant plastic materials such as polytetrafluoroethylene, polyether ester or polyimide, can withstand high-temperature sterilization, can be put into a wet heat sterilization pot for sterilization after being filled with gun heads, and meet special sterile experiment requirements.

[0039] The utility model discloses can realize the filling of pipette gun head 9 quickly, and simple structure, small, convenient to use, need not to be equipped with the pipette gun head 9 quick filling device of big volume and complicated structure, be suitable for laboratory use.

Claims

1. A semi-automatic filling cartridge for a pipette tip, characterized in that, The application relates to a gun head box, which comprises a gun head box body, a gun head box cover, a hole plate, a vacuum pump and a connecting pipe, the gun head box body has a certain depth to accommodate a pipette gun head, the hole plate is arranged on the top of the gun head box body, a plurality of gun head holes are arranged on the hole plate, the gun head box cover is used for being buckled on the top of the gun head box body, a vacuum connecting port is arranged on the side wall of the gun head box body, the vacuum connecting port is detachably connected with the connecting pipe, and the inner cavity of the gun head box body is communicated with the vacuum pump through the connecting pipe.

2. The semi-automatic pipette tip filling cartridge of claim 1, wherein, The vacuum connecting port is a tubular structure protruding from the outer wall of the gun head box body, a sealing ring is arranged in the vacuum connecting port, and a plug-in connector is arranged at the end of the connecting pipe and inserted into the vacuum connecting port.

3. The semi-automatic pipette tip filling cartridge of claim 1, wherein, The application further comprises a sealing plug, which is used for sealing the vacuum connecting port when the connecting pipe is disconnected from the vacuum connecting port.

4. The semi-automatic pipette tip filling cartridge of claim 1, wherein, The vacuum pump is a small vacuum pump.

5. The semi-automatic pipette tip filling cartridge of claim 1, wherein, The hole plate and the gun head box body are detachably connected.

6. The semi-automatic pipette tip filling cartridge of claim 1, wherein, The connecting pipe is a flexible silica gel pipe.

7. The semi-automatic pipette tip filling cartridge of claim 1, wherein, The gun head hole is a conical hole.

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