Cell detection pipettor convenient for accurate sampling

Abstract

The utility model belongs to the technical field of cell detection pipettors, and particularly relates to a cell detection pipettor convenient for accurate sampling, which comprises a cryopreservation plate and a support plate, the surface of the cryopreservation plate is provided with storage holes, the left end face and the right end face of the cryopreservation plate are fixedly connected with spacers, the lower end of the support plate is provided with an accurate mechanism, and the accurate mechanism is connected with the cryopreservation plate. The inner wall of the supporting plate is slidably connected with a manual pipettor, the left side of the manual pipettor is fixedly connected with a guide plate, the guide plate is slidably connected with the supporting plate, and a round hole is formed in the left end of the guide plate. By pushing the positioning ring to be inserted into the storage hole, the positioning ring can be guided and clamped for use under the action of the guide-in ring, and the clamping stability of the positioning ring can be improved under the action of the friction groove, so that the positioning ring drives the manual pipettor to be positioned right above the storage hole, the problem of deviation of subsequent sampling of the manual pipettor is avoided, and the sampling efficiency is improved. Therefore, the sampling accuracy of the manual pipettor is ensured.

Description

Technical Field

[0001] This utility model relates to the field of cell detection pipette technology, specifically a cell detection pipette that facilitates accurate sampling. Background Technology

[0002] As is well known, cell detection pipettes are key tools in biological laboratories for the precise transfer of minute amounts of liquids (such as cell suspensions, reagents, culture media, etc.), and their accuracy and stability directly affect the reliability of cell experiments.

[0003] A utility model patent with patent authorization publication number CN221720815U discloses a pipette for cell culture, comprising: a pipette body, a pipetting connector, and a pipette tip. The pipetting connector is formed by sidewalls surrounding the connector body, and the sidewalls, bottom, and top enclose a pipetting cavity. The lower end of the pipetting connector has a protruding pipette tip interface with a protruding opening communicating with the pipetting cavity. The upper end of the pipetting connector has a pipette interface located within the pipetting cavity, communicating with the pipetting cavity. The outer wall of the lower end of the pipette body engages with the inner wall of the pipette interface. The outer wall of the pipette tip interface engages with the inner wall of the upper end of the pipette tip.

[0004] However, existing cell detection pipettes also have certain shortcomings. Most existing cell detection pipettes use manual operation to sample the cell solution inside the storage wells of cryopreservation plates. Since the accuracy of manual operation is positively linearly correlated with the operator's proficiency, this is very unfriendly to novice operators and can easily lead to poor sampling accuracy in the future. Utility Model Content

[0005] The purpose of this invention is to provide a cell detection pipette that facilitates accurate sampling. This solves the problem that existing cell detection pipettes mostly rely on manual operation to sample cell fluid from the storage wells of cryopreservation plates. Since the accuracy of manual operation is positively linearly correlated with the operator's proficiency, this is very unfriendly to novice operators and results in poor sampling accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cell detection pipette for easy and accurate sampling, comprising a cryopreservation plate and a support plate, wherein the surface of the cryopreservation plate is provided with storage holes, and septa are fixedly connected to both the left and right end faces of the cryopreservation plate, a precision mechanism is provided at the lower end of the support plate, a manual pipette is slidably connected to the inner wall of the support plate, a guide plate is fixedly connected to the left side of the manual pipette, the guide plate is slidably connected to the support plate, and a circular hole is provided at the left end of the guide plate;

[0007] The precision mechanism includes a connecting rod, with the lower end of the support plate fixedly connected to the connecting rod. The lower end of the connecting rod is fixedly connected to a connecting block, and the end face of the connecting block is fixedly connected to a positioning ring. The positioning ring is slidably connected to the storage hole. The surface of the positioning ring has multiple friction grooves arranged in a circular array. The friction grooves improve the friction effect of the positioning ring surface. The lower end of the positioning ring is fixedly connected to an inlet ring, which is slidably connected to the storage hole. The inlet ring allows the positioning ring to be used for inlet and positioning. Under the action of the positioning ring, the manual pipette can be positioned so that it is directly above the storage hole.

[0008] Preferably, the left end of the support plate is fixedly connected to a mounting ear, the inner wall of the mounting ear is slidably connected to a telescopic rod, the right end of the telescopic rod is fixedly connected to a ball, the ball is slidably connected to a circular hole, the left end of the telescopic rod is fixedly connected to an end post, and a spring is provided on the outer side of the telescopic rod. Through the cooperation of the ball and the circular hole, the guide plate can be limited, thereby positioning the manual pipette.

[0009] Preferably, one end of the spring is welded to the end post, and the other end of the spring is welded to the mounting lug. The spring allows the end post to be connected and used.

[0010] Preferably, the storage holes are provided in multiple ways and are evenly distributed on the cryopreservation plate. The storage holes allow for the storage and use of cell fluid.

[0011] Preferably, there are two circular holes, which are evenly distributed on the guide plate. The circular holes facilitate the engagement of the spheres.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model pushes the positioning ring into the storage hole. The guide ring guides and engages the positioning ring, and the friction groove improves the engagement stability of the positioning ring. This ensures that the positioning ring moves the manual pipette directly above the storage hole, avoiding the deviation problem of subsequent manual pipette sampling and ensuring the accuracy of manual pipette sampling.

[0014] 2. This utility model pushes the manual pipette downward so that the sampling tube of the manual pipette is submerged in the storage hole, which facilitates subsequent sampling. With the structure of round hole, ball, spring, etc., the guide plate can be limited, thereby allowing precise control of the position of the manual pipette. Attached Figure Description

[0015] Figure 1This is a three-dimensional view of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 Enlarged view of a manual pipette;

[0017] Figure 3 For the present utility model Figure 2 A bottom view;

[0018] Figure 4 For the present utility model Figure 2 Enlarged view of point A.

[0019] In the diagram: 1. Cryopreservation plate; 2. Support plate; 3. Storage hole; 4. Spare sheet; 5. Precision mechanism; 6. Manual pipette; 7. Guide plate; 8. Round hole; 9. Mounting lug; 10. Telescopic rod; 11. Ball; 12. End post; 13. Spring; 51. Connecting rod; 52. Connecting block; 53. Positioning ring; 54. Friction groove; 55. Inlet ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A cell detection pipette for accurate sampling includes a cryopreservation plate 1 and a support plate 2. The surface of the cryopreservation plate 1 has multiple storage holes 3 evenly distributed on the cryopreservation plate 1. The storage holes 3 allow for the storage and use of cell fluid. Spare parts 4 are fixedly connected to both the left and right ends of the cryopreservation plate 1. A manual pipette 6 is slidably connected to the inner wall of the support plate 2. A guide plate 7 is fixedly connected to the left side of the manual pipette 6 and is slidably connected to the support plate 2. Two circular holes 8 are provided on the left end of the guide plate 7 and are evenly distributed on the guide plate 7. The circular holes 8 facilitate the engagement with a ball 11.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4A mounting ear 9 is fixedly connected to the left end of the support plate 2. A telescopic rod 10 is slidably connected to the inner wall of the mounting ear 9. A ball 11 is fixedly connected to the right end of the telescopic rod 10. The ball 11 is slidably connected to the round hole 8. An end post 12 is fixedly connected to the left end of the telescopic rod 10. A spring 13 is provided on the outside of the telescopic rod 10. One end of the spring 13 is welded to the end post 12, and the other end of the spring 13 is welded to the mounting ear 9. The end post 12 can be connected and used through the setting of the spring 13. The guide plate 7 can be limited and used through the cooperation of the ball 11 and the round hole 8, thereby positioning the manual pipette 6.

[0023] Please see Figure 1 , Figure 2 , Figure 3 A precision mechanism 5 is provided at the lower end of the support plate 2. The precision mechanism 5 includes a connecting rod 51. The connecting rod 51 is fixedly connected to the lower end of the support plate 2. A connecting block 52 is fixedly connected to the lower end of the connecting rod 51. A positioning ring 53 is fixedly connected to the end face of the connecting block 52. The positioning ring 53 is slidably connected to the storage hole 3. Multiple friction grooves 54 are opened on the surface of the positioning ring 53. The multiple friction grooves 54 are arranged in a ring array on the positioning ring 53. By setting the friction grooves 54, the friction effect of the surface of the positioning ring 53 can be improved. An inlet ring 55 is fixedly connected to the lower end of the positioning ring 53. The inlet ring 55 is slidably connected to the storage hole 3. By setting the inlet ring 55, the positioning ring 53 can be used for inlet and positioning. Under the action of the positioning ring 53, the manual pipette 6 can be positioned so that the manual pipette 6 is directly above the storage hole 3.

[0024] The specific implementation process of this utility model is as follows: In use, by pushing the support plate 2 to move, the connecting rod 51 is moved, which in turn moves the connecting block 52, and finally moves the positioning ring 53, so that the guide ring 55 contacts the storage hole 3. Under the action of force, the guide ring 55 is inserted into the storage hole 3, and the positioning ring 53 is inserted into the storage hole 3. Under the action of the friction groove 54, the insertion stability of the positioning ring 53 can be improved, so that the support plate 2 drives the manual pipette 6 to be stable, and the manual pipette 6 is located directly above the storage hole 3, avoiding the problem of subsequent sampling deviation.

[0025] By pushing the manual pipette 6 downwards, the guide plate 7 slides along the inner wall of the support plate 2, stabilizing the movement of the manual pipette 6 and allowing the sampling tube of the manual pipette 6 to be submerged in the storage hole 3 for precise sampling of cell fluid. The manual pipette 6 also moves the guide plate 7, causing the circular hole 8 to compress the sphere 11 under pressure, pushing the telescopic rod 10 to slide along the inner wall of the mounting lug 9 and moving the end post 12. This causes the spring 13 to deform, ultimately disengaging the sphere 11 from the circular hole 8. Under the action of force, the sphere 11 slides along the surface of the guide plate 7. When the sphere 11 slides into the next circular hole 8, the spring 13 returns to its original deformation, pulling the telescopic rod 10 to move, thus inserting the sphere 11 into the circular hole 8, positioning the guide plate 7, and thus positioning the manual pipette 6 for subsequent sampling.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cell detection pipette facilitating accurate sampling, comprising a cryo plate (1) and a support plate (2), characterized in that: The surface of the freezing plate (1) is provided with storage holes (3), the left and right end faces of the freezing plate (1) are fixedly connected with partition plates (4), the lower end of the supporting plate (2) is provided with an accurate mechanism (5), the inner wall of the supporting plate (2) is slidably connected with a manual pipette (6), the left side of the manual pipette (6) is fixedly connected with a guide plate (7), the guide plate (7) is slidably connected with the supporting plate (2), and the left end of the guide plate (7) is provided with a circular hole (8); The accurate mechanism (5) comprises a connecting rod (51), the lower end of the supporting plate (2) is fixedly connected with the connecting rod (51), the lower end of the connecting rod (51) is fixedly connected with a connecting block (52), the end face of the connecting block (52) is fixedly connected with a positioning ring (53), the positioning ring (53) is slidably connected with the storage hole (3), the surface of the positioning ring (53) is provided with a plurality of friction grooves (54), a plurality of friction grooves (54) are arranged in an annular array on the positioning ring (53), the lower end of the positioning ring (53) is fixedly connected with a guide-in ring (55), and the guide-in ring (55) is slidably connected with the storage hole (3).

2. A cell assay pipettor that facilitates precise sampling according to claim 1, wherein: The left end of the supporting plate (2) is fixedly connected with a mounting lug (9), the inner wall of the mounting lug (9) is slidably connected with a telescopic rod (10), the right end of the telescopic rod (10) is fixedly connected with a spherical ball (11), the spherical ball (11) is slidably connected with the circular hole (8), the left end of the telescopic rod (10) is fixedly connected with an end column (12), and the outer side of the telescopic rod (10) is provided with a spring (13).

3. A cell assay pipettor that facilitates precise sampling according to claim 2, wherein: One end of the spring (13) is welded with the end column (12), and the other end of the spring (13) is welded with the mounting lug (9).

4. The cell assay pipettor that facilitates precise sampling of claim 1, wherein: A plurality of storage holes (3) are arranged on the freezing plate (1).

5. The cell assay pipettor that facilitates precise sampling of claim 1, wherein: Two circular holes (8) are arranged on the guide plate (7).

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