Rapid dilution device for micro-samples

Abstract

The utility model discloses a rapid dilution device for micro samples, relates to the technical field of inspection, and aims to solve the technical problems that in the prior art, the pipetting amount of an existing common pipette is not accurate in the using process, and the calculation result is easy to make mistakes when an operator faces a large number of samples, so that the result cannot reach an ideal dilution ratio, and the product quality is influenced. Therefore, unnecessary waste of samples and large consumption of time are caused. A sample pool for filling a sample is arranged on the diluting device body, a hollow column is rotationally connected to the diluting device body, a cantilever is fixedly connected to the hollow column, a sample suction pipe is arranged on the cantilever, one end of the sample suction pipe is connected with an electric pump, and the other end of the sample suction pipe is used for sucking the sample in the sample pool. A program control box is arranged in the dilution device body, is electrically connected with the electric pump, and comprises a program control system, a power distribution system and a communication system.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection, in particular to a device for rapid dilution of trace samples. Background Art

[0002] In routine medical and biochemical testing operations, it is often necessary to dilute the samples to be tested at different concentrations. The testers need to calculate different dilution ratios, repeatedly select different pipetting equipment or adjust the range of the pipette gun for configuration, and at the same time ensure the uniformity of the diluted solution. The cumbersome dilution process brings a lot of inconvenience to the work of the testers;

[0003] During the sample dilution process, operators need to calculate different dilution ratios. To meet the test conditions of different reagents, samples need to be diluted in multiples or linearly. The existing ordinary pipettes are not accurate in the amount of liquid transferred during use, and operators are prone to errors in calculations when faced with a large number of samples, resulting in the result not reaching the ideal dilution multiple, thus causing unnecessary waste of samples and a large amount of time. Therefore, the market urgently needs to develop a micro-sample rapid dilution device to help people solve the existing problems. Utility Model Content

[0004] The purpose of the utility model is to provide a device for rapid dilution of trace samples, so as to solve the problems that the existing common pipette guns proposed in the above-mentioned background technology have inaccurate pipetting volume during use, and the operator is prone to errors in calculation results when faced with a large number of samples, resulting in the result failing to reach the ideal dilution multiple, thereby causing unnecessary waste of samples and a large consumption of time.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for rapid dilution of trace samples, comprising a dilution device body, a sample pool for filling samples being arranged on the dilution device body, a hollow column being rotatably connected to the dilution device body, a cantilever being fixedly connected to the hollow column, a sample suction tube being arranged on the cantilever, one end of the sample suction tube being connected to an electric pump, and the other end of the sample suction tube being used for sucking samples inside the sample pool, a program control box being arranged in the dilution device body, the program control box being electrically connected to the electric pump, and the program control box comprising a program control system, a power distribution system and a communication system.

[0006] Through the above technical scheme, the sample is loaded into the sample pool, and the electric pump and the sample suction tube are used to quantitatively absorb the sample in the sample pool, replacing the traditional pipette to extract the sample. The sample extraction amount depends entirely on the absorption amount of the electric pump, thereby avoiding human errors. At the same time, the electric pump is controlled by a program control box. The program control box is provided with a program control system. Only the commonly used AND or OR program on the market needs to be used to control the absorption amount of the electric pump. The structure is simple and reliable, and the working effect of accurate and quantitative sample extraction is achieved, avoiding a large waste of samples and a large consumption of time.

[0007] In a preferred example, the utility model can be further configured as follows: a dilution disk is rotatably connected to the dilution device body, a centrifuge tube with a cover is arranged on the dilution disk, a metal soft film for clamping the centrifuge tube with a cover is arranged in the dilution disk, and a touch screen is arranged on the dilution device body.

[0008] Through the above technical solution, the centrifuge tube is clamped and fixed by using the metal soft film.

[0009] In a preferred example, the utility model can be further configured as follows: a lifting device is provided in the dilution device body, a screw is rotatably connected in the lifting device, a screw seat is threadedly connected to the outer side of the screw, a bracket is slidably connected to the outer side of the lifting device, and the screw seat is connected to the bracket.

[0010] Through the above technical solution, the rotation of the screw rod drives the screw rod seat to move up and down, and the screw rod seat drives the bracket to move up and down.

[0011] In a preferred example, the utility model can be further configured as follows: the hollow column is rotatably connected to the bracket, one end of the hollow column is connected to a first driven gear, a first driving device is provided on the bracket, an output end of the first driving device is connected to a first driving gear, and the first driving gear is meshedly connected to the first driven gear.

[0012] Through the above technical solution, the bracket adjusts the height of the hollow column to achieve height adjustment of the cantilever and the suction end of the sample suction tube. At the same time, the first driving device is used to drive the hollow column to rotate to achieve the working effect of transporting the sample in the sample pool to the centrifuge tube.

[0013] In a preferred example, the utility model can be further configured as follows: a rotating shaft connected to the dilution disk is arranged in the dilution device body, one end of the rotating shaft is connected to a second driven gear, a second driving device is arranged in the dilution device body, an output end of the second driving device is connected to a second driving gear, and the second driving gear is meshed with the second driven gear.

[0014] Through the above technical solution, the second driving device drives the second driving gear to rotate, the second driving gear drives the rotating shaft to rotate through the second driven gear, and the rotating shaft drives the dilution disk to rotate.

[0015] In a preferred example, the utility model can be further configured as follows: one end of the screw rod is connected to a driven wheel, a third driving device is provided on the outside of the lifting device, the output end of the third driving device is connected to a driving wheel, and the driving wheel and the driven wheel are rotationally connected via a belt.

[0016] Through the above technical solution, the third driving device drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate through the belt, and the driven wheel drives the screw to rotate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model loads the sample into the sample pool, and uses an electric pump and a sample suction tube to quantitatively absorb the sample in the sample pool, replacing the traditional pipette gun to extract the sample. The sample extraction amount depends entirely on the absorption amount of the electric pump, thereby avoiding human errors. At the same time, the program control box is used to control the operation of the electric pump. The program control box is provided with a program control system. Only the commonly used AND or OR program on the market is needed to realize the control of the absorption amount of the electric pump. The structure is simple and reliable, and the working effect of accurate and quantitative sample extraction is achieved, avoiding a large waste of samples and a large consumption of time.

[0019] 2. The utility model drives the rotating shaft to rotate through the second driving device to drive the dilution plate to rotate, so that the centrifuge tube placed on the dilution plate can perform centrifugal motion. The rotation of the dilution plate causes the sample solvent in the centrifuge tube to oscillate continuously, thereby achieving the effect of rapid dilution of trace samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a top view of a device for rapid dilution of trace samples of the utility model;

[0021] Figure 2 It is a cross-sectional view of a side view of a device for rapid dilution of trace samples of the utility model;

[0022] Figure 3 For the utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 For the utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0024] Figure 5 For the utility model Figure 2 Enlarged schematic diagram of point C in the middle.

[0025] In the figure: 1. dilution device body; 2. touch screen; 3. dilution plate; 4. cantilever; 5. sample pipette; 6. sample pool; 7. hollow column; 8. centrifuge tube with cover; 9. electric pump; 10. program control box; 11. lifting device; 12. screw; 13. screw seat; 14. bracket; 15. first driven gear; 16. first driving gear; 17. first driving device; 18. rotating shaft; 19. second driven gear; 20. second driving gear; 21. second driving device; 22. driven wheel; 23. driving wheel; 24. third driving device. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] See also Figure 1 and Figure 2The utility model provides an embodiment: a device for rapid dilution of trace samples, comprising a dilution device body 1, a sample pool 6 for filling samples is arranged on the dilution device body 1, a hollow column 7 is rotatably connected to the dilution device body 1, a cantilever 4 is fixedly connected to the hollow column 7, a sample suction tube 5 is arranged on the cantilever 4, one end of the sample suction tube 5 is connected to an electric pump 9, and the other end of the sample suction tube 5 is used to suck the sample inside the sample pool 6, a program control box 10 is arranged in the dilution device body 1, the program control box 10 is electrically connected to the electric pump 9, the program control box 10 includes a program control system, a power distribution system and a communication system, the cantilever 4 is fixedly connected to the hollow column 7 by bolts, the sample suction tube 5 is fixed on the cantilever 4, the sample suction tube 5 is pre-buried in the interior of the hollow column 7, and extends to the interior of the dilution device body 1.

[0030] See also Figure 1 A dilution disk 3 is rotatably connected to the dilution device body 1, a centrifuge tube 8 with a cover is arranged on the dilution disk 3, a metal soft film for clamping the centrifuge tube 8 with a cover is arranged in the dilution disk 3, a touch screen 2 is arranged on the dilution device body 1, a plurality of centrifuge tubes 8 with covers are arranged, a plurality of fixed grooves for installing the centrifuge tubes 8 with covers are arranged on the dilution disk 3, and a metal soft film is arranged in the groove.

[0031] See also Figure 2 and Figure 3 A lifting device 11 is provided in the dilution device body 1, a screw 12 is rotatably connected in the lifting device 11, a screw seat 13 is threadedly connected to the outer side of the screw 12, a bracket 14 is slidably connected to the outer side of the lifting device 11, the screw seat 13 is connected to the bracket 14, the lifting device 11 is fixedly connected to the dilution device body 1 by fastening screws, and the screw seat 13 is fixedly connected to the bracket 14 by fastening screws.

[0032] See also Figure 3 The hollow column 7 is rotatably connected to the bracket 14, one end of the hollow column 7 is connected to the first driven gear 15, the bracket 14 is provided with a first driving device 17, the output end of the first driving device 17 is connected to the first driving gear 16, the first driving gear 16 is meshed with the first driven gear 15, the first driven gear 15 is fixedly connected to the hollow column 7 by a fastening screw, the first driving device 17 is fixedly connected to the bracket 14 by a fastening screw, and the first driving gear 16 is fixedly connected to the first driving device 17 by a shaft sleeve.

[0033] See also Figure 4A rotating shaft 18 connected to the dilution disk 3 is provided in the dilution device body 1, one end of the rotating shaft 18 is connected to a second driven gear 19, a second driving device 21 is provided in the dilution device body 1, an output end of the second driving device 21 is connected to a second driving gear 20, the second driving gear 20 is meshed and connected with the second driven gear 19, the second driven gear 19 is fixedly connected to the rotating shaft 18 by a fastening screw, the second driving gear 20 is fixedly connected to the second driving device 21 by a bushing, and the second driving device 21 is connected to the dilution device body 1 by a fixing seat.

[0034] See also Figure 5 One end of the screw rod 12 is connected to a driven wheel 22, a third driving device 24 is arranged on the outside of the lifting device 11, an output end of the third driving device 24 is connected to a driving wheel 23, the driving wheel 23 and the driven wheel 22 are rotationally connected by a belt, the driven wheel 22 and the screw rod 12 are fixedly connected by fastening screws, the third driving device 24 and the driving wheel 23 are fixedly connected by a coupling, and the third driving device 24 and the lifting device 11 are fixedly connected by fastening screws.

[0035] Working principle: When in use, the sample solvent is loaded into the sample pool 6, and then the first driving device 17 is used to drive the first driving gear 16 to rotate, and the first driving gear 16 drives the hollow column 7 to rotate through the first driven gear 15, and the hollow column 7 drives the cantilever 4 to rotate, and the suction end of the sample suction tube 5 is rotated to the top of the sample pool 6, and then the third driving device 24 is used to drive the driving wheel 23 to rotate, and the driving wheel 23 drives the screw 12 to rotate through the driven wheel 22, thereby driving the screw seat 13 to move vertically, and the bracket 14 and the hollow column 7 and the cantilever 4 are sunk, so that the sample suction tube 5 enters the sample pool 6, and then the electric pump 9 is used to quantitatively absorb the required The sample solvent is collected, and the lifting device 11 is used to raise the sample suction tube 5 again. Then the hollow column 7 is rotated to move the sample suction tube 5 to the top of the covered centrifuge tube 8. The cover is opened, and the sample suction tube 5 is lowered to transport the sample solvent to the inside of the covered centrifuge tube 8 to achieve the working effect of sampling and adding. Then, the second driving device 21 is used to drive the second driving gear 20 to rotate. The second driving gear 20 drives the rotating shaft 18 to rotate through the second driven gear 19. The rotating shaft 18 drives the dilution disk 3 to rotate, thereby centrifuging and diluting the sample inside the covered centrifuge tube 8. The whole process is controlled by the touch screen 2 and completed by sending instructions using the program control box 10.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A device for rapid dilution of trace samples, comprising a dilution device body (1), characterized in that: The dilution device body (1) is provided with a sample pool (6) for filling samples, the dilution device body (1) is rotatably connected with a hollow column (7), the hollow column (7) is fixedly connected with a cantilever (4), the cantilever (4) is provided with a sample suction tube (5), one end of the sample suction tube (5) is connected with an electric pump (9), and the other end of the sample suction tube (5) is used to suck the sample inside the sample pool (6), and the dilution device body (1) is provided with a program control box (10), the program control box (10) is electrically connected to the electric pump (9), and the program control box (10) includes a program control system, a power distribution system and a communication system.

2. A micro-sample rapid dilution device according to claim 1, characterized in that: A dilution plate (3) is rotatably connected to the dilution device body (1), a centrifuge tube (8) with a cover is arranged on the dilution plate (3), a metal soft sheet for clamping the centrifuge tube (8) with a cover is arranged inside the dilution plate (3), and a touch screen (2) is arranged on the dilution device body (1).

3. A micro-sample rapid dilution device according to claim 1, characterized in that: A lifting device (11) is arranged inside the dilution device body (1), a screw rod (12) is rotatably connected inside the lifting device (11), a screw rod seat (13) is threadedly connected to the outer side of the screw rod (12), a bracket (14) is slidably connected to the outer side of the lifting device (11), and the screw rod seat (13) is connected to the bracket (14).

4. A micro-sample rapid dilution device according to claim 3, characterized in that: The hollow column (7) is rotatably connected to the bracket (14); one end of the hollow column (7) is connected to a first driven gear (15); a first driving device (17) is provided on the bracket (14); an output end of the first driving device (17) is connected to a first driving gear (16); and the first driving gear (16) is meshedly connected to the first driven gear (15).

5. A micro-sample rapid dilution device according to claim 2, characterized in that: A rotating shaft (18) connected to the dilution disk (3) is arranged in the dilution device body (1), one end of the rotating shaft (18) is connected to a second driven gear (19), a second driving device (21) is arranged in the dilution device body (1), an output end of the second driving device (21) is connected to a second driving gear (20), and the second driving gear (20) is meshedly connected to the second driven gear (19).

6. A micro-sample rapid dilution device according to claim 3, characterized in that: One end of the screw rod (12) is connected to a driven wheel (22), a third driving device (24) is arranged outside the lifting device (11), an output end of the third driving device (24) is connected to a driving wheel (23), and the driving wheel (23) and the driven wheel (22) are rotationally connected via a belt.

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