Anti-corrosion multichannel pipettor

Abstract

The utility model discloses an anti-corrosion multichannel pipettor which comprises an anti-inclination frame and an empty cylinder, a plurality of cylinder shells are arranged on the anti-inclination frame, sliding blocks are connected in the cylinder shells in a sliding mode, circulating grooves are formed in the surfaces of the sliding blocks, clamping rods are rotationally arranged in the cylinder shells, the clamping rods at the upper ends are inserted into the circulating grooves, springs are arranged between the sliding blocks and the cylinder shells, and the sliding blocks are in transmission connection with clamping devices. The empty cylinder is connected with the clamping device, and a piston handle is connected into the empty cylinder in a sliding mode. A plurality of empty cylinders are fixed on the double-layer disc through an assembly plate, sampling taper pipes are sleeved with the empty cylinders, after the empty cylinders are marked, errors are not prone to occurring in use, a pressing column is pressed downwards to enable a sliding block to be clamped by a clamping rod, at the moment, the corresponding sampling taper pipe moves downwards, a piston handle is lifted upwards to enable the sampling taper pipe to extract liquid, use is flexible and convenient, various kinds of liquid can be conveniently moved, and the sampling efficiency is improved. The counterweight seat supports all the empty cylinders and the sampling taper pipe, so that the sampling taper pipe is prevented from toppling over, the risk that the sampling taper pipe is in contact with a tabletop and the ground is reduced, and liquid is prevented from being polluted.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipettor technical field, concretely is a kind of anticorrosive multichannel pipettor. BACKGROUND

[0002] Pipettor is the commonly used tool of transfer liquid, plays key role in biology, chemistry and other fields.Pipettor diversification capacity selection from micro 0.1 microliter to large capacity 10 milliliter, meets different experimental needs.

[0003] In the related art, through retrieval, it is found that the scheme of a kind of pipettor (announcement number CN222197005U) is positioned by the telescopic link, T-shaped buckle and positioning pin, by pulling push rod upward, liquid is sucked into from liquid storage cylinder using air pressure, the resistance of push rod is increased using telescopic link and spring, liquid is inhaled at uniform speed, after liquid is inhaled, press button to push the front section of positioning pin into the inner wall of clamping plate, the friction force of the contact surface of clamping plate and positioning pin is increased using the pressure generated by spring deformation, T-shaped buckle is clamped, then T-shaped buckle is used to limit push rod to prevent push rod from being pushed by air pressure to squeeze liquid out of piston.

[0004] However, if the types of liquid moved and placed are more when using the above scheme, multiple pipettors need to be equipped, which is not convenient in operation, and different pipettors need to be frequently replaced to adapt to different types of liquid, which not only increases the complexity of operation, but also increases the risk of operation failure due to frequent replacement. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of anticorrosive multichannel pipettor to solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of anticorrosive multichannel pipettor, including anti-inclination frame, anti-inclination frame can reduce the risk of sampling cone pipe pouring, avoid sampling cone pipe to drop on table or ground, prevent liquid leakage;

[0007] A plurality of cylinder shells are installed on the anti-inclination frame, a sliding block is slidably connected in the cylinder shell, a circulating groove is arranged on the surface of the sliding block, a clamping rod is rotatably installed in the cylinder shell, and the upper end of the clamping rod is inserted into the circulating groove, a spring is arranged between the sliding block and the cylinder shell, and the sliding block is drivingly connected with a clamping device.

[0008] Empty cylinder, the empty cylinder is connected with the clamping device, a piston handle is slidably connected in the empty cylinder, the sliding block is limited by the clamping rod when moving up and down, so that the clamping device drives the empty cylinder to move up and down and is limited, when using the empty cylinder, press the corresponding assembly plate, when transferring liquid, it is not easy to make mistakes, and the operation is relatively convenient.

[0009] Further, the anti-tilt frame comprises a counterweight seat, a double-layer disc is connected to the counterweight seat, a plurality of mounting holes are arranged on the surface of the double-layer disc, the barrel shell is inserted into the mounting hole, a handle is fixedly connected to the upper surface of the double-layer disc, the handle is provided with an anti-skid sleeve, the multi-channel pipette cannot be slipped when being taken, two first nuts are screwed on the barrel shell, and the two first nuts abut against the upper and lower surfaces of the double-layer disc, the installation height of the barrel shell can be adjusted by screwing the first nut, the use is flexible, different types of empty barrels can be adapted, and the application range is wide.

[0010] Further, the sliding block is connected with a pressing column penetrating through the barrel shell, the clamp is connected with the pressing column, the clamp comprises an assembly plate, a screw pipe is arranged on the assembly plate, a second nut is screwed on the upper end of the screw pipe, an inclined plate is arranged at the end of the screw pipe, and the inclined plate is provided with a clamping piece, the clamping piece clamps the empty barrel by screwing the second nut, the position of the empty barrel can be adjusted up and down, and the empty barrel is conveniently replaced.

[0011] Compared with the prior art, the anti-tilt frame comprises a counterweight seat, a double-layer disc is connected to the counterweight seat, a plurality of mounting holes are arranged on the surface of the double-layer disc, the barrel shell is inserted into the mounting hole, a handle is fixedly connected to the upper surface of the double-layer disc, the handle is provided with an anti-skid sleeve, the multi-channel pipette cannot be slipped when being taken, two first nuts are screwed on the barrel shell, and the two first nuts abut against the upper and lower surfaces of the double-layer disc, the installation height of the barrel shell can be adjusted by screwing the first nut, the use is flexible, different types of empty barrels can be adapted, and the application range is wide.

[0012] (1) The double-layer disc fixes a plurality of empty barrels through the assembly plate, the sampling cone pipe is sleeved with the empty barrel, the empty barrel is labeled, and the use is not prone to errors; the sliding block is clamped by the clamping rod by pressing the pressing column downward, at this time, the corresponding sampling cone pipe moves downward, the sampling cone pipe draws liquid by lifting the piston handle, the use is flexible and convenient, and a plurality of liquids can be conveniently pipetted.

[0013] (2) The counterweight seat supports all the empty barrels and the sampling cone pipes, prevents the sampling cone pipe from toppling, reduces the risk that the sampling cone pipe contacts the desktop and the ground, and avoids that the liquid is polluted.

[0014] (3) The height of the barrel shell can be adjusted up and down by unscrewing the first nut, the height of the empty barrel can be adjusted by unscrewing the second nut, double height adjustment of the sampling cone pipe is realized, sampling cone pipes with different capacities can be used, and the application range is wide. DETAILED DESCRIPTION

[0015] Figure 1 It is a structure schematic view of the whole utility model;

[0016] Figure 2 It is a structure schematic view of the inside of the empty barrel of the utility model;

[0017] Figure 3 It is a sectional view of the assembly plate of the utility model;

[0018] Figure 4 It is a structure schematic view of the inside of the barrel shell of the utility model;

[0019] Figure 5 It is a top view of the double-layer disc of the utility model.

[0020] Figure: 1, counterweight seat; 2, handle; 3, double-layer disc; 4, first nut; 5, barrel shell; 6, pressing column; 7, assembly plate; 8, second nut; 9, empty barrel; 10, piston handle; 11, sampling cone tube; 12, sealing ring; 13, clamping piece; 14, inclined plane plate; 15, sliding block; 16, circulating groove; 17, clamping rod; 18, spring; 19, mounting hole; 20, screw pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Embodiment:

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of anticorrosion multichannel pipettor, including anti-inclination frame, several barrel shells 5 are installed on the anti-inclination frame, and the anti-inclination frame gravity center is low, not easy to pour, to prevent the inclination of sampling cone tube 11, keep sampling cone tube 11 in the state of suspension, not easy to be contaminated;

[0024] Sliding block 15 is slidably connected in the barrel shell 5, circulating groove 16 is arranged on the surface of sliding block 15, clamping rod 17 is rotatably installed in the barrel shell 5, and upper end clamping rod 17 is inserted into circulating groove 16, as Figure 4 As shown, circulating groove 16 guides clamping rod 17 to move from the left side of circulating groove 16 to the right side of circulating groove 16, spring 18 is arranged between sliding block 15 and barrel shell 5, when clamping rod 17 moves below circulating groove 16, spring 18 can top sliding block 15, to realize the automatic reset of sliding block 15, and sliding block 15 is drivingly connected with clamp;

[0025] Empty barrel 9 is connected with clamp, piston handle 10 is slidably connected in empty barrel 9, sliding block 15 is limited by clamping rod 17 when moving up and down, so that clamp drives empty barrel 9 to move up and down and is limited, corresponding pressing column 6 can be pressed by using any sampling cone tube 11, several sampling cone tubes 11 are gathered, when frequently shifting different liquids, reduce taking and placing action, improve liquid transfer efficiency.

[0026] In the embodiment, as Figure 1 As shown, the anti-inclination frame includes counterweight seat 1, double-layer disc 3 is connected to the counterweight seat 1, a plurality of mounting holes 19 are arranged on the surface of double-layer disc 3, and barrel shell 5 is inserted into mounting hole 19, so that multiple barrel shells 5 can be concentratedly installed in double-layer disc 3.

[0027] In this embodiment, as Figure 1 As shown, a handle 2 is fixedly connected to the upper surface of the double-layer tray 3. The handle 2 has an anti-slip sleeve, making it convenient to pick up the multichannel pipette. The handle 2 is T-shaped, making it easy to pick up.

[0028] In this embodiment, as Figure 1 As shown, the cylindrical shell 5 has threads, and two first nuts 4 are screwed onto the cylindrical shell 5. The two first nuts 4 abut against the upper and lower surfaces of the double-layer disk 3. Tightening the two first nuts 4 ensures that the cylindrical shell 5 will not move up and down. After loosening the two first nuts 4, the position of the cylindrical shell 5 relative to the double-layer disk 3 can be adjusted up and down to achieve the adjustment of the height of the cylindrical shell 5.

[0029] In this embodiment, as Figure 1 As shown, a sampling cone tube 11 is sleeved at the lower end of the empty cylinder 9. The capacity of the sampling cone tube 11 is used as needed. The sampling cone tube 11 is plugged into and unplugged from the empty cylinder 9, making it convenient to replace the sampling cone tube 11.

[0030] In this embodiment, as Figure 2 As shown, the lower step of the piston handle 10 has two sealing rings 12, and the sealing rings 12 abut against the inner wall of the empty cylinder 9. The sealing rings 12 improve the sealing between the piston handle 10 and the empty cylinder 9, ensuring that the sampling cone tube 11 can smoothly extract liquid.

[0031] In this embodiment, as Figure 5 As shown, the slider 15 is connected to a pressing column 6 that passes through the cylindrical shell 5. The clamp is connected to the pressing column 6. The size of the pressing column 6 is smaller than that of the slider 15. The pressing column 6 has a certain length to facilitate the downward movement of the sampling cone tube 11.

[0032] In this embodiment, as Figure 4 As shown, the clamping device includes an assembly plate 7, on which a screw tube 20 is provided, and a second nut 8 is screwed to the upper end of the screw tube 20. The end of the screw tube 20 is provided with a slanted plate 14, and the slanted plate 14 has a clamping piece 13. Tightening the second nut 8 allows the clamping piece 13 to stably clamp the empty cylinder 9, ensuring that the empty cylinder 9 will not slide.

[0033] Specifically, during use, after the cylinder shell 5 is connected to the double-layer disk 3, the empty cylinder 9 is inserted into the screw tube 20. When the second nut 8 is tightened, the second nut 8 moves along the inclined plate 14 and presses the inclined plate 14. The inclined plate 14 drives the clamping piece 13 to clamp the empty cylinder 9, thus fixing the empty cylinder 9. When the second nut 8 is not tightened, the position of the empty cylinder 9 can be moved up and down to connect the sampling cone tube 11 to the empty cylinder 9.

[0034] When the liquid is extracted by the sampling cone tube 11, the pressing column 6 is pressed downward, the sliding block 15 is driven to move downward and the spring 18 is compressed, at this time, the clamping rod 17 moves along the circulation groove 16 on the sliding block 15 until the clamping rod 17 is clamped in the middle of the circulation groove 16, at this time, the clamping rod 17 hooks the sliding block 15 to prevent the sliding block 15 from moving upward, when the pressing column 6 moves downward, the empty cylinder 9 is driven to move downward through the assembling plate 7, the sampling cone tube 11 is inserted into the liquid after moving downward, the sampling cone tube 11 is smoothly extracted by the liquid by using the negative pressure of the empty cylinder 9 when the piston handle 10 is lifted, compared with the traditional pipette, the action of taking and placing different pipettes is reduced when the liquid is frequently moved, and the use is more convenient.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant multichannel pipette, characterized in that, include: An anti-tilt frame is provided with several cylindrical shells (5). A slider (15) is slidably connected inside the cylindrical shell (5). A circulation groove (16) is provided on the surface of the slider (15). A clamping rod (17) is rotatably installed inside the cylindrical shell (5), and the upper end of the clamping rod (17) is inserted into the circulation groove (16). A spring (18) is provided between the slider (15) and the cylindrical shell (5). The slider (15) is connected to a clamping device. An empty cylinder (9) is connected to a clamping device. A piston handle (10) is slidably connected in the empty cylinder (9). The slider (15) moves up and down and is hooked and limited by the clamping rod (17) so that the clamping device drives the empty cylinder (9) to move up and down and is limited.

2. The corrosion-resistant multichannel pipette according to claim 1, characterized in that: The anti-tilt frame includes a counterweight base (1), on which a double-layer disk (3) is connected. The surface of the double-layer disk (3) is provided with several mounting holes (19), and the cylindrical shell (5) is inserted into the mounting holes (19).

3. The corrosion-resistant multichannel pipette according to claim 2, characterized in that: A handle (2) is fixedly connected to the upper surface of the double-layer disk (3), and the handle (2) has an anti-slip sleeve.

4. The corrosion-resistant multichannel pipette according to claim 2, characterized in that: Two first nuts (4) are screwed onto the cylindrical shell (5), and the two first nuts (4) abut against the upper and lower surfaces of the double-layer disc (3).

5. A corrosion-resistant multichannel pipette according to claim 1, characterized in that: The lower end of the empty cylinder (9) is fitted with a sampling cone tube (11).

6. The corrosion-resistant multichannel pipette according to claim 1, characterized in that: The piston handle (10) has two sealing rings (12) at the lower end of the step, and the sealing rings (12) abut against the inner wall of the empty cylinder (9).

7. A corrosion-resistant multichannel pipette according to claim 1, characterized in that: The slider (15) is connected to a pressing column (6) that passes through the cylindrical shell (5), and the clamp is connected to the pressing column (6).

8. A corrosion-resistant multichannel pipette according to claim 1, characterized in that: The clamping device includes an assembly plate (7), on which a screw tube (20) is provided, and a second nut (8) is screwed to the upper end of the screw tube (20). The end of the screw tube (20) is provided with a slanted plate (14), and the slanted plate (14) has a clamping piece (13).

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