Pipetting device for chemical medicine inspection

Abstract

The utility model relates to the technical field of chemical inspection, in particular to a pipetting device for chemical medicine inspection, which is characterized in that fixed plates are respectively and fixedly arranged on the left side and the right side of the outer ring wall of a medicine moving tube, a moving ring is movably sleeved on the medicine moving tube, and guide frames are fixedly arranged on the outer ring wall of the medicine moving tube in an equal-fillet distribution manner; a plurality of baffles are suspended on the outer side of the medicine moving pipe in an equal-fillet distribution mode, guide strips are fixedly arranged on the inner side walls of the baffles, the lower portion of the moving ring is hinged to the guide strips, the guide frame is movably arranged in guide grooves formed in the guide strips, and the connecting plates are fixedly arranged on the left side and the right side of the outer ring wall of the moving ring respectively. The connecting plate and the fixing plate are connected through a convenient driving mechanism, and a spring is fixedly arranged at the upper part of the connecting plate, so that a liquid taking pipe orifice can be protected, and the pollution to an inspection table top and the like caused by dripping of liquid medicine on the liquid taking pipe orifice in a liquid transferring process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical testing, in particular to a liquid transfer device for testing chemical medicines. Background Art

[0002] Chemical drugs are raw materials and their preparations obtained by synthetic or semi-synthetic methods. In the process of testing chemical drugs, it is often necessary to use a pipetting device such as a dropper or a syringe to achieve the pipetting of chemical solutions in different containers. Although the structure is simple and easy to use, there will inevitably be chemical solution residues at the liquid collection tube mouth. During the pipetting process, the chemical solution at the liquid collection tube mouth is easy to drip onto the inspection table, causing contamination of the inspection table. Therefore, a pipetting device for chemical drug testing is urgently needed. Utility Model Content

[0003] The purpose of the utility model is to provide a reasonably designed liquid transfer device for chemical drug testing in view of the defects and shortcomings of the prior art, so as to solve the above problems.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions: it comprises a medicine transfer tube, a piston and a movable rod, the medicine transfer tube is provided with a piston in a movable manner, and the piston is fixedly provided with a movable rod;

[0005] It also contains:

[0006] There are two fixed plates, which are respectively fixed on the left and right sides of the outer ring wall of the medicine transfer tube, and a movable ring is provided on the movable sleeve of the medicine transfer tube;

[0007] Guide frames, the guide frames are several in number, and are fixedly arranged on the outer ring wall of the medicine transfer tube with equal fillet distribution. Several baffles are suspended on the outer side of the medicine transfer tube with equal fillet distribution. A guide strip is fixedly arranged on the inner wall of the baffle. The lower part of the moving circle is hinged with the guide strip. The guide frame is movably arranged in a guide groove provided on the guide strip. The guide groove is arranged in a "T"-shaped structure.

[0008] There are two connecting plates, which are fixedly arranged on the left and right sides of the outer ring wall of the moving ring respectively. The connecting plate and the fixed plate are connected by a convenient driving mechanism. A spring is fixedly arranged on the upper part of the connecting plate, and the upper end of the spring is connected to the fixed plate.

[0009] Preferably, the convenient driving mechanism comprises:

[0010] A first vertical rod, the first vertical rod is fixedly arranged on the upper part of the connecting plate, and the first vertical rod is movably arranged on the fixing plate;

[0011] A connecting frame is fixedly arranged at the lower part of the fixed plate, a gear is screwed on the connecting frame through a shaft and a bearing, a second vertical rod is movably passed through the fixed plate, racks are fixedly arranged on the side walls of the first vertical rod and the second vertical rod, and the gears are respectively meshed with the racks on both sides.

[0012] Preferably, a pressing buffer plate is fixedly provided on the upper end of the second vertical rod.

[0013] Preferably, a limit plate is fixedly provided on the upper end of the No. 1 vertical rod, and the limit plate is arranged to abut against the upper part of the fixed plate.

[0014] Preferably, a guide wheel is screwed onto the guide frame through a bearing, and the guide wheel is movably disposed in the guide groove.

[0015] Preferably, a plurality of guide ribs are distributed on the outer ring wall of the medicine transfer tube at equal fillets, and the guide ribs are movably arranged on the moving ring.

[0016] Compared with the prior art, the beneficial effect of the utility model is that the liquid transfer device for chemical drug testing described in the utility model can provide protection for the liquid collection tube outlet to prevent the liquid from dripping from the liquid collection tube outlet during the liquid transfer process, thereby preventing the testing table and the like from being contaminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is an exploded view of the parts of the medicine transfer tube, piston, movable rod and guide rib in the utility model.

[0019] Figure 3 It is an exploded view of the parts of the moving ring, the guide frame, the baffle and the guide strip in the utility model.

[0020] Figure 4 yes Figure 3 Enlarged view of part A in .

[0021] Figure 5 It is an exploded view of the parts of the fixing plate, the connecting plate, the convenient driving mechanism, the pressing buffer plate and the limiting plate in the utility model.

[0022] Description of reference numerals:

[0023] Medicine transfer tube 1, piston 2, movable rod 3, fixed plate 4, moving ring 5, guide frame 6, baffle 7, guide bar 8, guide groove 9, connecting plate 10, convenient driving mechanism 11, No. 1 vertical rod 11-1, connecting frame 11-2, gear 11-3, No. 2 vertical rod 11-4, rack 11-5, spring 12, pressing buffer plate 13, limiting plate 14, guide wheel 15, guide rib 16. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the utility model.

[0025] like Figure 1-Figure 5 As shown, this specific embodiment adopts the following technical solution: it comprises a medicine transfer tube 1, a piston 2 and a movable rod 3, the medicine transfer tube 1 is provided with a piston 2 in a movable manner, and the piston 2 is fixedly provided with the movable rod 3;

[0026] It also contains:

[0027] The fixing plates 4 are two and are fixedly arranged on the left and right sides of the outer ring wall of the medicine transfer tube 1, respectively. The medicine transfer tube 1 is movably sleeved with a moving ring 5. The outer ring wall of the medicine transfer tube 1 is provided with a plurality of guide ribs 16 with equal fillets, and the guide ribs 16 are movably penetrated on the moving ring 5. The guide ribs 16 can not only provide up and down movement guidance for the moving ring 5, but also provide restrictions on the moving ring 5 to prevent the moving ring 5 from rotating;

[0028] The guide frame 6 is a plurality of guide frames 6, which are fixedly arranged on the outer ring wall of the medicine transfer tube 1 with equal fillet distribution. A plurality of baffles 7 are suspended on the outer side of the medicine transfer tube 1 with equal fillet distribution. A guide bar 8 is fixedly arranged on the inner wall of the baffle 7. The lower part of the moving circle 5 is hinged with the guide bar 8. The guide frame 6 is movably arranged in a guide groove 9 provided on the guide bar 8. The guide groove 9 is a "T"-shaped structure. A guide wheel 15 is rotatably arranged on the guide frame 6 through a bearing. The guide wheel 15 is movably arranged in the guide groove 9. The rotation of the guide wheel 15 in the guide groove 9 can prevent the guide frame 6 from being worn due to movement in the guide groove 9.

[0029] Connecting plates 10, there are two connecting plates 10, which are fixedly arranged on the left and right sides of the outer ring wall of the moving ring 5 respectively. The connecting plates 10 are connected to the fixed plate 4 through a convenient driving mechanism 11. A spring 12 is fixedly arranged on the upper part of the connecting plate 10, and the upper end of the spring 12 is connected to the fixed plate 4;

[0030] The convenient driving mechanism 11 comprises:

[0031] A first vertical rod 11-1, wherein the first vertical rod 11-1 is fixedly arranged on the upper part of the connecting plate 10, and the first vertical rod 11-1 is movably arranged on the fixing plate 4, and a limiting plate 14 is fixedly arranged on the upper end of the first vertical rod 11-1, and the limiting plate 14 is arranged to conflict with the upper part of the fixing plate 4, and the limiting plate 14 can realize the limiting effect between the first vertical rod 11-1 and the fixing plate 4;

[0032] A connecting frame 11-2, wherein the connecting frame 11-2 is fixedly arranged at the lower part of the fixed plate 4, a gear 11-3 is screwed on the connecting frame 11-2 through an axis and a bearing, a second vertical rod 11-4 is movably penetrated on the fixed plate 4, a pressing buffer plate 13 is fixedly arranged on the upper end of the second vertical rod 11-4, and the good force buffering effect of the pressing buffer plate 13 can effectively improve the comfort of the staff when pressing the second vertical rod 11-4 downward, racks 11-5 are fixedly arranged on the side walls of the first vertical rod 11-1 and the second vertical rod 11-4, and the gears 11-3 are respectively meshed with the racks 11-5 on both sides.

[0033] When using the utility model, the buffer plate 13 is pushed downward to press the second vertical rod 11-4 downward, and the meshing of the gear 11-3 and the rack 11-5 allows the first vertical rod 11-1 to drive the moving circle 5 to move upward through the connecting plate 10, and the moving circle 5 drives the baffle plate 7 to move upward through the guide bar 8 and compresses the spring 12, and the movement of the guide frame 6 in the guide groove 9 allows the baffle plate 7 to flip a certain angle and expand outward while moving upward, exposing the liquid taking pipe opening at the lower end of the medicine transfer tube 1, and then the liquid taking pipe opening can be extended into the chemical solution, and the movable rod 3 is pulled upward, and the movable rod 3 drives the piston 2 to move upward, and the atmospheric pressure is used to force the chemical liquid into the medicine transfer tube 1, and after the liquid taking pipe opening of the medicine transfer tube 1 is removed from the chemical solution, the buffer plate 13 is released to allow the spring 12 to reset and extend, and the moving circle 5 is driven by the connecting plate 10 When the bottle 1 is in the air, the piston 2 is pushed down and the bottle 1 is moved to another position, so that the bottle 1 is moved to another position, and the bottle 1 is moved to another position, so that the bottle 1 is moved to another position, and the bottle 1 is moved to another position, so that the bottle 1 is moved to another position, and the bottle 1 is moved to another position, so that the bottle 1 is moved to another position, and the bottle 1 is moved to another position,

[0034] After adopting the above structure, the beneficial effects of this specific implementation are as follows:

[0035] 1. Through the cooperation of the fixed plate 4, the moving ring 5, the guide frame 6, the baffle 7, the guide strip 8, the connecting plate 10, the convenient driving mechanism 11 and the spring 12, the liquid taking nozzle of the drug transfer tube 1 can be protected to prevent the drug liquid on the liquid taking nozzle from dripping during the transfer process, thereby preventing the inspection table from being contaminated;

[0036] 2. When the guide frame 6 moves in the guide groove 9, the guide wheel 15 can rotate in the guide groove 9 to avoid the guide frame 6 moving in the guide groove 9 and causing wear.

[0037] For those skilled in the art, they can modify the technical solutions recorded in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A liquid transfer device for chemical drug testing, comprising a drug transfer tube (1), a piston (2) and a movable rod (3), wherein the drug transfer tube (1) is provided with a piston (2) in a movable manner, and the movable rod (3) is fixedly provided on the piston (2); Features: It also contains: A fixed plate (4), wherein the fixed plates (4) are two and are respectively fixedly arranged on the left and right sides of the outer ring wall of the medicine transfer tube (1); a movable ring (5) is movably sleeved on the medicine transfer tube (1); A plurality of guide frames (6) are fixedly arranged on the outer ring wall of the medicine transfer tube (1) at equal rounded angles, a plurality of baffles (7) are suspended at equal rounded angles on the outer side of the medicine transfer tube (1), a guide bar (8) is fixedly arranged on the inner side wall of the baffle (7), the lower part of the moving ring (5) is hinged to the guide bar (8), the guide frame (6) is movably arranged in a guide groove (9) provided on the guide bar (8), and the guide groove (9) is arranged in a "T"-shaped structure; The connecting plates (10) are two in number and are respectively fixedly arranged on the left and right sides of the outer ring wall of the moving ring (5); the connecting plates (10) are connected to the fixed plate (4) via a convenient driving mechanism (11); a spring (12) is fixedly arranged on the upper part of the connecting plate (10); and the upper end of the spring (12) is connected to the fixed plate (4).

2. A liquid transfer device for chemical drug testing according to claim 1, characterized in that: The convenient driving mechanism (11) comprises: A first vertical rod (11-1), the first vertical rod (11-1) is fixedly arranged on the upper part of the connecting plate (10), and the first vertical rod (11-1) is movably inserted into the fixing plate (4); A connecting frame (11-2) is fixedly arranged at the lower part of the fixing plate (4); a gear (11-3) is rotatably arranged on the connecting frame (11-2) through a shaft and a bearing; a second vertical rod (11-4) is movably penetrated on the fixing plate (4); racks (11-5) are fixedly arranged on the side walls of the first vertical rod (11-1) and the second vertical rod (11-4); and the gears (11-3) are respectively meshed with the racks (11-5) on both sides.

3. A liquid transfer device for chemical drug testing according to claim 2, characterized in that: A pressing buffer plate (13) is fixedly provided on the upper end of the second vertical rod (11-4).

4. A liquid transfer device for chemical drug testing according to claim 2, characterized in that: A limiting plate (14) is fixedly arranged at the upper end of the first vertical rod (11-1), and the limiting plate (14) is arranged to abut against the upper part of the fixing plate (4).

5. A liquid transfer device for chemical drug testing according to claim 1, characterized in that: A guide wheel (15) is provided on the guide frame (6) through a bearing rotation connection, and the guide wheel (15) is movably arranged in the guide groove (9).

6. A liquid transfer device for chemical drug testing according to claim 1, characterized in that: A plurality of guide ribs (16) are distributed on the outer ring wall of the medicine transfer tube (1) at equal fillets, and the guide ribs (16) are movably arranged on the moving ring (5).

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