Anti-dropping structure for pipette of pipette

Abstract

The utility model provides an anti-dropping structure for a pipette of a pipette, which comprises a fixed seat, fixed blocks are fixed on the side of the fixed seat, a limiting tube is movably arranged between the fixed blocks, a limiting column is movably arranged in the limiting tube, an arc-shaped groove is arranged on the side of the fixed seat, and the arc-shaped groove is communicated with the limiting column. And one end of the limiting column is movably installed in the arc-shaped groove, a fixed pipe is fixed to the bottom of the fixed seat, a movable pipe is movably installed in the fixed pipe, and scale marks are formed in the movable pipe. According to the anti-falling structure for the pipette of the pipette, when the anti-falling structure is used, the piston seat moves downwards to complete downward movement of liquid, the movable pipe is pushed to descend through the connecting pipe and the supporting column when the piston moves downwards, the descending distance of the movable pipe is observed through the scale marks, and the descending distance of the piston and the liquid inlet volume can be quickly known through the scale marks.

Description

Technical Field

[0001] The utility model relates to the field of pipette anti-falling equipment, in particular to a pipette anti-falling structure for a pipette gun. Background Art

[0002] Pipette guns usually do not have an external device for fixing the pipette. During the use of the pipette gun, when pipettes of different specifications are selected and inserted into the electric pipette gun, the pipette and the electric pipette often have problems such as being loose or unstable, and leaking during pipetting, which leads to inconvenience in the electric pipetting operation.

[0003] The anti-slip device of the present invention is a device for preventing the pipette from falling off and preventing the pipette from falling off during the pipetting process, wherein the anti-slip device is fixed to the gun head of the pipette, and the anti-slip device is fixed to the gun head of the pipette, wherein the anti-slip device is fixed to the gun head of the pipette, and the anti-slip device is fixed to the gun head of the pipette, wherein the anti-slip device is fixed to the gun head of the pipette, and the anti-slip device is fixed to the gun head of the pipette, wherein the anti-slip device is fixed to the gun head of the pipette, and the anti-slip device is fixed to the gun head of the pipette, Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a pipette anti-falling structure for a pipette to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. When in use, the piston seat moves downward to complete the downward movement of the liquid. When the piston moves downward, the connecting tube and the support column push the movable tube down. The distance the movable tube descends can be observed through the scale line. The scale line can be used to quickly understand the distance the piston has descended and the volume of the liquid entering.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a pipette anti-falling structure for a pipette, comprising a fixed seat, a fixed block fixed on the side of the fixed seat, a limiting tube movably installed between the fixed blocks, a limiting column movably installed inside the limiting tube, an arc groove opened on the side of the fixed seat, one end of the limiting column movably installed inside the arc groove, a fixed tube fixed on the bottom of the fixed seat, a movable tube movably installed inside the fixed tube, and scale lines opened on the movable tube.

[0006] Furthermore, a gun head is movably installed inside the fixing seat, and the side of the gun head is movably contacted with one end of the limiting column. A rubber bump is fixed to one end of the limiting column, and the limiting tube is installed on the fixing block through a rotating column.

[0007] Furthermore, a cavity is opened inside the limiting tube, a supporting mechanism is fixed inside the cavity, and one end of the supporting mechanism is fixed on the limiting column.

[0008] Furthermore, a piston is movably installed inside the fixed tube, a hole is opened on the piston, and a connecting tube is movably installed at the bottom of the piston.

[0009] Furthermore, a fixing ring is fixed to one end of the connecting pipe, a supporting column is fixed to the fixing ring, and one end of the supporting column is in contact with the piston.

[0010] Furthermore, a reset mechanism is fixed to the bottom of the fixed ring, one end of the reset mechanism is fixed inside the fixed tube, and the fixed ring is fixedly connected to one end of the movable tube.

[0011] Beneficial effects of the utility model:

[0012] 1. This pipette anti-drop structure has a structure in which the piston seat moves downward to complete the downward movement of the liquid during use. When the piston moves downward, the connecting tube and the support column push the movable tube downward. The distance the movable tube descends can be observed through the scale lines, and the scale lines can be used to quickly understand the distance the piston has descended and the volume of the liquid entering.

[0013] 2. This is a pipette anti-falling structure. The limit tube drives the limit column to rotate into the interior of the arc groove. The support mechanism pushes one end of the limit column to contact the gun head for up and down limiting. In addition, the support mechanism cooperates with the gun head to realize the installation limit of gun heads of different diameters. The later movable tube pushes the piston upward through the connecting tube to complete the cleaning of the scratches on the inner wall of the fixed tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a pipette anti-falling structure for a pipette gun according to the present invention;

[0015] Figure 2 This is a schematic diagram of a top-view cross-sectional structure of a fixing seat of a pipette anti-falling structure of a pipette gun according to the present invention;

[0016] Figure 3 This is a schematic side cross-sectional structure diagram of a fixed tube of a pipette anti-falling structure of a pipette gun according to the present invention;

[0017] In the figure: 1. fixing seat; 2. fixing block; 3. limiting tube; 4. limiting column; 5. arc groove; 6. fixing tube; 7. movable tube; 8. scale line; 9. gun head; 10. cavity; 11. supporting mechanism; 12. rotating column; 13. piston; 14. opening; 15. connecting tube; 16. fixing ring; 17. supporting column; 18. reset mechanism. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figures 1 to 3 The fixing block 2 is fixed on the side of the fixing block 1, and a limiting tube 3 is movably installed between the fixing blocks 2, and a limiting column 4 is movably installed inside the limiting tube 3. The side of the fixing block 1 is provided with an arc groove 5, and one end of the limiting column 4 is movably installed in the arc groove 5. The bottom of the fixing block 1 is fixed with a fixing tube 6, and a movable tube 7 is movably installed inside the fixing tube 6. The movable tube 7 is provided with a scale line 8. A gun head 9 is movably installed inside the fixing block 1, and the side of the gun head 9 is movably contacted with one end of the limiting column 4. A rubber bump is fixed on one end of the limiting column 4, and the limiting tube 3 is installed on the fixing block 2 by a rotating column 12. After the rubber bump is squeezed and deformed, it increases the friction with the gun head 9, thereby preventing the fixing block 1 from easily falling off from the gun head 9.

[0020] In this embodiment, a cavity 10 is opened inside the limiting tube 3, and a supporting mechanism 11 is fixed inside the cavity 10. One end of the supporting mechanism 11 is fixed on the limiting column 4. A piston 13 is movably installed inside the fixed tube 6. An opening 14 is opened on the piston 13. A connecting tube 15 is movably installed on the bottom of the piston 13. A fixing ring 16 is fixed at one end of the connecting tube 15. A supporting column 17 is fixed on the fixing ring 16. One end of the support column 17 is in contact with the piston 13. A reset mechanism 18 is fixed at the bottom of the fixing ring 16. One end of the reset mechanism 18 is fixed to the inside of the fixed tube 6. The fixing ring 16 is fixedly connected to one end of the movable tube 7. Both the supporting mechanism 11 and the reset mechanism 18 are springs. The supporting mechanism 11 pushes the limiting column 4 to install gun tips 9 of different diameters. The reset mechanism 18 pushes the fixing ring 16 to move upward. The rise of the fixing ring 16 pushes the piston 13 to scratch and clean the inside of the fixed tube 6.

[0021] When the device is in use, the gun head 9 is installed inside the fixed seat 1, and a sealing gasket is installed between the gun head 9 and the fixed tube 6. The sealing gasket realizes the seal between the fixed tube 6 and the gun head 9. After the gun head 9 is installed, the limiting tube 3 rotates through the rotating column 12. The rotation of the limiting tube 3 causes the limiting column 4 to enter the inside of the arc groove 5. When the limiting tube 3 is rotated to 90 degrees, the limiting column 4 contacts the gun head 9, and the gun head 9 squeezes the limiting column 4. After the squeezing, the limiting column 4 moves to squeeze the supporting mechanism 11. The rebound force generated by the supporting mechanism 11 squeezes the limiting column 4, and the squeezing of the limiting column 4 provides a support point, thereby realizing the limited connection between the gun head 9 and the fixed seat 1. When in use, the piston seat inside the pipette gun enters into the fixed tube 6 from the inside of the gun head 9. The piston seat pushes the piston 13 to move downward, and the piston 13 moves downward into the liquid. Then the piston seat rises, and the reset mechanism 18 pushes the fixing ring 16 and the connecting tube 15 to move upward. When the connecting tube 15 moves upward, the piston 13 moves upward. The piston 13 and the connecting tube 15 cooperate to extract liquid through the movable tube 7. After the liquid extraction is completed, the piston seat inside the pipette gun pushes the piston 13 to move again. When the piston 13 moves, the liquid inside the movable tube 7 is discharged downward. As the piston 13 descends, the piston 13 pushes the connecting tube 15 and the movable tube 7 to descend. The distance that the movable tube 7 descends is proportional to the volume of the discharged liquid. The volume of the liquid can be quickly understood according to the scale line 8, thereby completing precise pipetting.

[0022] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0023] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A pipette anti-drop structure for a pipette, comprising a fixing seat (1), characterized in that: A fixed block (2) is fixed on the side of the fixed seat (1), a limit tube (3) is movably installed between the fixed blocks (2), a limit column (4) is movably installed inside the limit tube (3), an arc groove (5) is opened on the side of the fixed seat (1), one end of the limit column (4) is movably installed inside the arc groove (5), a fixed tube (6) is fixed on the bottom of the fixed seat (1), a movable tube (7) is movably installed inside the fixed tube (6), and a scale line (8) is opened on the movable tube (7).

2. The anti-drop structure for a pipette according to claim 1, characterized in that: A gun head (9) is movably mounted inside the fixing seat (1), and the side of the gun head (9) is in movably contact with one end of a limiting column (4), one end of which is fixed with a rubber bump, and the limiting tube (3) is mounted on the fixing block (2) via a rotating column (12).

3. The anti-drop structure for a pipette according to claim 1, characterized in that: A cavity (10) is formed inside the limiting tube (3), a support mechanism (11) is fixed inside the cavity (10), and one end of the support mechanism (11) is fixed on the limiting column (4).

4. The anti-drop structure for a pipette according to claim 1, characterized in that: A piston (13) is movably mounted inside the fixed tube (6), an opening (14) is formed on the piston (13), and a connecting tube (15) is movably mounted on the bottom of the piston (13).

5. The anti-drop structure for a pipette according to claim 4, characterized in that: A fixing ring (16) is fixed to one end of the connecting pipe (15), a supporting column (17) is fixed to the fixing ring (16), and one end of the supporting column (17) is in contact with the piston (13).

6. The anti-drop structure for a pipette according to claim 5, characterized in that: A reset mechanism (18) is fixed to the bottom of the fixed ring (16), one end of the reset mechanism (18) is fixed inside the fixed tube (6), and the fixed ring (16) is fixedly connected to one end of the movable tube (7).

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