An intelligent laboratory sample sampling robot

Abstract

The present invention discloses an intelligent laboratory sample sampling robot, which comprises: a workbench; a transfer belt horizontally arranged on one side of the workbench for directionally transporting sample tubes; a rotary rack disk rotatably arranged on the workbench near the transfer belt through a lower base, and a plurality of mounting recesses are provided on the rotary rack disk; a rotation adjustment sampling assembly installed on the side of the workbench away from the transfer belt; and a peripheral detection device for timely detecting the sampled samples.

Description

Technical Field

[0001] The present invention belongs to the technical field of experimental sampling equipment, and specifically relates to an intelligent laboratory sample sampling robot. Background Art

[0002] In laboratory work, a lot of test tubes are used, and sample reagents are stored in corresponding sample test tubes. Then, a sampler is used to extract and sample the liquid reagents in each test tube and drop them into the corresponding liquid reagent experimental reaction tank for experiments and observations. In the prior art, although most laboratories are equipped with intelligent sampling robots, when used specifically, the sampling accuracy of the sampling robot is low, and repeated debugging is required to achieve the quantitative sampling effect. At the same time, during the sampling of multiple samples one by one, due to its lack of an automatic cleaning function, the sampling tube needs to be repeatedly replaced to avoid cross-contamination, which makes the use complexity relatively high and affects the experimental process.

[0003] Therefore, those skilled in the art have provided an intelligent laboratory sample sampling robot to solve the problems raised in the above background art. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solution: An intelligent laboratory sample sampling robot, which includes:

[0005] A workbench;

[0006] A conveyor belt, horizontally installed on one side of the workbench for directionally transporting the specimen tubes;

[0007] A turntable, rotatably arranged on the workbench near the conveyor belt through a lower base, and a plurality of mounting recesses are provided on the turntable;

[0008] A rotation adjustment sampling assembly, installed on the side of the workbench away from the conveyor belt; and

[0009] An external detection device for timely detecting the sampled samples.

[0010] Further, as a preference, the rotation adjustment sampling assembly includes:

[0011] A universal robotic arm, rotatably arranged on the workbench through a mounting seat, and the universal robotic arm is configured as a four-section foldable structure;

[0012] A fixed shaft frame, vertically fixed at the output end of the universal robotic arm;

[0013] A guide rod, horizontally fixed inside the fixed shaft frame, and an outer frame is slidably sleeved on the guide rod; A sampling liquid storage assembly, vertically fixed on the outer frame; and

[0014] The liquid extraction tube is slidably connected coaxially below the sampling liquid storage assembly.

[0015] Furthermore, preferably, the liquid extraction tube is configured in a U-shaped structure. A shaft sleeve is fixed at the upper end of the liquid extraction tube, and an inner connecting tube is sleeved outside the shaft sleeve and can rotate relative to it; an inner ring member is also embedded in the sampling liquid storage assembly, and a ring plug is slidably sealed on the inner ring member. One end of the inner connecting tube is slidably arranged in the inner ring member through a sealing ring, and connecting rods are vertically symmetrically fixed below the ring plug, and one end of the connecting rod is fixed to the inner connecting tube.

[0016] Furthermore, preferably, the sampling liquid storage assembly includes:

[0017] The main liquid tube;

[0018] An inner sealing plug is slidably arranged in the main liquid tube. A telescopic guide rod is vertically fixed on the outer frame, and the output end of the telescopic guide rod is connected to the inner sealing plug;

[0019] The side pressure boosting devices are multiple and vertically arranged. Each side pressure boosting device is vertically connected to the inner sealing plug.

[0020] Furthermore, preferably, the side pressure boosting device includes:

[0021] Sealing branch pipes are vertically arranged and fixed on the inner sealing plug;

[0022] A central shaft plug is slidably arranged in each sealing branch pipe, and a plurality of support springs are connected between the central shaft plug and the sealing branch pipe;

[0023] Air flow pipes are vertically connected above each sealing branch pipe;

[0024] Pressure boosting shaft members are arranged corresponding to each sealing branch pipe and are connected to the sealing branch pipe through the air flow pipes. A main discharge plug is slidably arranged in the pressure boosting shaft member; and

[0025] Side position guide plugs are slidably arranged in the pressure boosting shaft members. The cross-section of the pressure boosting shaft member is in an L-shaped structure, and a rotating disk is rotatably arranged inside it. A transmission rod is hinged on the rotating disk, and one end of the transmission rod is connected to the side position guide plug.

[0026] Furthermore, preferably, a water inlet pipe is vertically connected to one side of the main liquid tube, and the water inlet pipe is communicated with an external water supply pump.

[0027] Further, as a preference, an inner flow pipe is vertically and limitably slidably arranged in the liquid extraction pipe through an inner spring, and side flow holes are symmetrically and obliquely formed in the liquid extraction pipe. One end of the inner flow pipe is fixedly sleeved with a flow blocking ring which can hermetically seal the side flow holes. A fixed sphere is also arranged in the liquid extraction pipe for hermetically sealing one end of the inner flow pipe, and a plurality of side through ports are correspondingly arranged on the flow blocking ring.

[0028] Further, as a preference, a cleaning sleeve is also slidably sleeved outside the liquid extraction pipe.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] In the present invention, a transfer and sampling assembly is mainly arranged to realize intelligent sampling work. Among them, during sampling, the liquid extraction pipe can extend into the sample tube, and after reaching a certain depth, it can rotate itself to assist in disturbing the sample liquid to ensure the uniformity of sampling. In particular, precise sampling work can be realized through the mutual cooperation of the inner sealing plug and the side pressure increasing device. At the same time, after a single sampling is completed, the water inlet pipe can introduce cleaning water inside. In particular, the cleaning water can also flow out along the outer wall of the liquid extraction pipe, so as to clean the inside and outside of the liquid extraction pipe and avoid cross-contamination of samples. Description of the Drawings

[0031] Figure 1 is a structural schematic diagram of the present invention;

[0032] Figure 2 is a structural schematic diagram of the transfer and sampling assembly of the present invention;

[0033] Figure 3 is a structural schematic diagram of the liquid extraction pipe of the present invention;

[0034] Figure 4 is a structural schematic diagram of the sampling and liquid storage assembly of the present invention;

[0035] Figure 5 is a structural schematic diagram of the side pressure increasing device of the present invention;

[0036] Figure 6 is a structural schematic diagram of the inner flow pipe of the present invention;

[0037] In the figure: 1 workbench, 11 transfer belt, 12 sample tube, 13 turntable, 2 transfer and sampling assembly, 21 universal robotic arm, 22 fixed shaft bracket, 23 guide rod, 3 sampling and liquid storage assembly, 31 main liquid pipe, 32 inner seal plug, 33 telescopic guide rod, 34 water inlet pipe, 4 liquid extraction pipe, 41 bushing, 42 inner connecting pipe, 43 inner ring part, 44 connecting rod, 45 ring plug, 5 side pressure boosting device, 51 sealed branch pipe, 5 central shaft plug, 53 support spring, 54 pressure boosting shaft part, 55 main discharge plug, 56 rotating disk, 57 side guide plug, 6 inner flow pipe, 61 side flow holes, 62 flow blocking ring, 63 fixed sphere, 64 cleaning bushing. Detailed implementation mode

[0038] Please refer to Figure 1 , in the embodiment of the present invention, an intelligent sample sampling robot for a laboratory includes:

[0039] Workbench 1;

[0040] Transfer belt 11, horizontally installed on one side of the workbench 1 for directionally transporting the sample tube 12;

[0041] Turntable 13, rotatably arranged on the workbench 1 near the transfer belt 11 through a lower base, and a plurality of mounting recesses are provided on the turntable 13; for vertically placing the sample tube and realizing automatic sampling under the action of rotation;

[0042] Transfer and sampling assembly 2, installed on the workbench 1 on the side away from the transfer belt 11; and

[0043] Peripheral detection device (not shown in the figure), used for timely detecting the sampled sample.

[0044] In this embodiment, the transfer and sampling assembly 2 includes:

[0045] Universal robotic arm 21, rotatably arranged on the workbench 1 through a mounting seat, and the universal robotic arm 21 is set as a four-section foldable structure; with high freedom and strong usability;

[0046] Fixed shaft bracket 22, vertically fixed at the output end of the universal robotic arm 21;

[0047] Guide rod 23, fixedly parallel inside the fixed shaft bracket 22, and an outer frame is slidably sleeved on the guide rod 23;

[0048] Sampling and liquid storage assembly 3, vertically fixed on the outer frame; and

[0049] Liquid extraction pipe 4, coaxially and slidably connected below the sampling and liquid storage assembly 3, so as to control the liquid extraction pipe to extend into the sample tube through the vertical displacement of the outer frame.

[0050] As a preferred embodiment, the liquid extraction tube 4 is configured in a U-shaped structure. A shaft sleeve 41 is fixed to the upper end of the liquid extraction tube 4, and an inner connecting tube 42 is sleeved outside the shaft sleeve 41 in a relatively rotatable manner. An inner ring member 43 is also embedded in the sampling and liquid storage assembly 3. A ring plug 45 is slidably arranged on the inner ring member 43 in a sealed manner. One end of the inner connecting tube 42 is slidably arranged in the inner ring member 43 through a sealing ring. A connecting rod 44 is vertically and symmetrically fixed below the ring plug 45, and one end of the connecting rod 44 is fixed to the inner connecting tube 42. During use, by injecting gas into the annular cavity formed between the inner ring member and the sampling and liquid storage assembly to increase the pressure, the vertical displacement of the ring plug is driven. At this time, the liquid extraction tube can be accurately adjusted and extended into the sample liquid. At the same time, the liquid extraction tube can assist in disturbing the flow of the sample liquid under its own rotation, so as to achieve the uniformity of sampling.

[0051] In this embodiment, the sampling and liquid storage assembly 3 includes:

[0052] A main liquid tube 31;

[0053] An inner sealing plug 32, which is slidably arranged in the main liquid tube 31. A telescopic guide rod 33 is vertically fixed on the outer frame, and the output end of the telescopic guide rod 33 is connected to the inner sealing plug 32;

[0054] A side pressure increasing device 5, which is a plurality of vertically arranged ones. Each side pressure increasing device 5 is vertically connected to the inner sealing plug 32. Through the vertical displacement of the inner sealing plug, a negative pressure suction effect can be formed in the main liquid tube, so as to realize the sampling work.

[0055] In this embodiment, the side pressure increasing device 5 includes:

[0056] Sealing branch pipes 51, which are vertically arranged and fixed on the inner sealing plug 32;

[0057] A central shaft plug 52, which is slidably arranged in each sealing branch pipe 51. A plurality of support springs 53 are connected between the central shaft plug 52 and the sealing branch pipe 51;

[0058] An air flow tube 57, which is vertically connected above each sealing branch pipe 51;

[0059] A pressure increasing shaft member 54, which is arranged corresponding to each sealing branch pipe 51 and is connected to the sealing branch pipe 51 through the air flow tube 57. A main discharge plug 55 is slidably arranged in the pressure increasing shaft member 54; and

[0060] The side-position guide plug 57 is slidably arranged within the pressurizing shaft member 54. The cross-section of the pressurizing shaft member 54 is in an L-shaped structure, and a rotating disk 56 is rotatably arranged within it. A transmission rod is hinged on the rotating disk 56, and one end of the transmission rod is connected to the side-position guide plug 57. In particular, during use, first, through the vertical displacement and sliding of the inner sealing plug, the sample liquid can be pumped into the main liquid pipe at a high flow rate. At this time, when it approaches 80% of the specified capacity, the vertical displacement of each central shaft plug is driven by the sliding of the main discharge plug. At this time, the sample liquid can continue to flow into the main liquid pipe at a low flow rate, and then fill the remaining 20%, improving the sampling accuracy. In particular, for a sample liquid with a relatively high consistency, its overall peristalsis is weak during sampling. At this time, the central shaft plug in one of the sealing branch pipes can be synchronously driven by the side-position guide plug during reciprocating displacement, thereby enhancing the fluidity during the flow of the sample liquid.

[0061] In this embodiment, a water inlet pipe 34 is also vertically connected to one side of the main liquid pipe 31. The water inlet pipe 34 is communicated with an external water supply pump. In particular, after a single sampling is completed, clean water is introduced through the water inlet pipe. At this time, multiple central shaft plugs perform vertical reciprocating displacement under synchronous drive. At this time, with its continuity, the clean water can achieve a circulating effect in the main liquid pipe, thereby improving the self-cleaning property.

[0062] As a preferred embodiment, an inner flow pipe 6 is vertically and slidably limited within the liquid extraction pipe 4 through an inner spring. The liquid extraction pipe 4 is symmetrically and obliquely provided with side flow holes 61. One end of the inner flow pipe 6 is fixedly sleeved with a flow blocking ring 62, and the flow blocking ring 62 can seal and block the side flow holes 61. A fixed sphere 63 is also arranged within the liquid extraction pipe 5 for sealing and blocking one end of the inner flow pipe 6. A plurality of side through ports are correspondingly arranged on the flow blocking ring. In particular, the clean water in the main liquid pipe can flow along the inner flow pipe into the liquid extraction pipe (at this time, the side through ports and the side flow holes are misaligned and not connected). When the flow rate of the clean water is too large under the action of the discharge pressure, at this time, the flow blocking ring can form an end seal through the fixed sphere during vertical displacement, and the side through ports and the side flow holes are correspondingly connected, enabling the clean water to flow out. In particular, the liquid extraction pipe is also provided with a flow blocking sleeve, thereby realizing the cleaning work of the inner and outer walls of the liquid extraction pipe.

[0063] In this embodiment, a cleaning shaft sleeve 64 is also slidably sleeved outside the liquid extraction pipe 4, used to adsorb the excess water on the outer wall of the liquid extraction pipe, and at the same time, the liquid extraction pipe can achieve a drying effect under self-rotation.

[0064] Specifically, the sample tube can be placed on the turntable. At this time, the universal robotic arm slides the liquid extraction tube into the corresponding sample tube, and the liquid extraction tube performs the corresponding sampling work. During the liquid extraction, through the vertical displacement and sliding of the inner sealing plug, the sample liquid can be pumped into the main liquid tube at a high flow rate. When it approaches 80% of the specified capacity, the inner sealing plug stops moving. By driving the vertical displacement of each central shaft plug during the sliding of the main discharge plug, at this time, the sample liquid can continue to flow into the main liquid tube at a low flow rate, and then fill the remaining 20%, improving the sampling accuracy. After the liquid extraction is completed, clean water can be introduced through the water inlet pipe to clean the inner wall of the injection tube. At the same time, the clean water can flow into the liquid extraction tube and can clean the inner and outer walls of the liquid extraction tube, with relatively high use safety and avoiding cross-contamination.

[0065] As described above, only the preferred specific embodiments of the present invention are provided, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. An intelligent laboratory sample sampling robot, characterized in that: It includes: A workbench (1); A transfer belt (11), horizontally installed on one side of the workbench (1) for directionally transporting sample tubes (12); A turntable (13), rotatably arranged on the workbench (1) near the transfer belt (11) through a lower base, and a plurality of mounting recesses are provided on the turntable (13); A transfer and sampling assembly (2), installed on the workbench (1) on the side away from the transfer belt (11); And An external detection device for timely detecting the sampled samples; The transfer and sampling assembly (2) includes: A universal robotic arm (21), rotatably arranged on the workbench (1) through a mounting seat, and the universal robotic arm (21) is configured as a four-section foldable structure; A fixed shaft frame (22), vertically fixed at the output end of the universal robotic arm (21); A guide rod (23), horizontally fixed inside the fixed shaft frame (22), and an outer frame is slidably sleeved on the guide rod (23); A sampling liquid storage assembly (3), vertically fixed on the outer frame; and A liquid extraction tube (4), coaxially and slidably connected below the sampling liquid storage assembly (3); The sampling liquid storage assembly (3) includes: A main liquid pipe (31); An inner sealing plug (32), slidably arranged inside the main liquid pipe (31), a telescopic guide rod (33) is vertically fixed on the outer frame, and the output end of the telescopic guide rod (33) is connected to the inner sealing plug (32); Side pressurizing devices (5), a plurality of which are vertically arranged, and each side pressurizing device (5) is vertically connected to the inner sealing plug (32); The side pressurizing device (5) includes: Sealing branch pipes (51), vertically arranged and fixed on the inner sealing plug (32); A central shaft plug (52), slidably arranged inside each sealing branch pipe (51), and a plurality of support springs (53) are connected between the central shaft plug (52) and the sealing branch pipe (51); An air flow pipe, vertically connected above each sealing branch pipe (51); A pressurizing shaft member (54), corresponding to each sealing branch pipe (51) and connected to the sealing branch pipe (51) through the air flow pipe, and a main discharge plug (55) is slidably arranged inside the pressurizing shaft member (54); and A side guide plug (57), slidably arranged inside the pressurizing shaft member (54).

2. The intelligent laboratory sample sampling robot according to claim 1, wherein: The liquid extraction tube (4) is configured as a U-shaped structure, a shaft sleeve (41) is fixed at the upper end of the liquid extraction tube (4), and an inner connecting tube (42) is rotatably sleeved outside the shaft sleeve (41); an inner ring member (43) is also embedded in the sampling liquid storage assembly (3), a ring plug (45) is slidably sealed on the inner ring member (43), one end of the inner connecting tube (42) is slidably arranged inside the inner ring member (43) through a sealing ring, and a connecting rod (44) is vertically and symmetrically fixed below the ring plug (45), and one end of the connecting rod (44) is fixed to the inner connecting tube (42).

3. The intelligent laboratory sample sampling robot according to claim 1, characterized in that: The cross-section of the supercharging shaft member (54) is in an L-shaped structure, and a rotating disk (56) is rotatably arranged inside it. A transmission rod is hinged on the rotating disk (56), and one end of the transmission rod is connected to the side-position guide plug (57).

4. The intelligent laboratory sample sampling robot according to claim 3, wherein: One side of the main liquid pipe (31) is also vertically connected with a water inlet pipe (34), and the water inlet pipe (34) is communicated with an external water supply pump.

5. The intelligent laboratory sample sampling robot according to claim 2, wherein: An inner flow pipe (6) is vertically and limit-slidingly arranged in the liquid extraction pipe (4) through an inner spring. Side flow holes (61) are symmetrically and obliquely formed in the liquid extraction pipe (4). A flow blocking ring (62) is fixedly sleeved at one end of the inner flow pipe (6). The flow blocking ring (62) can seal and block the side flow holes (61). A fixed sphere (63) is also arranged in the liquid extraction pipe (4) for sealing and blocking one end of the inner flow pipe (6). A plurality of side through ports are correspondingly arranged on the flow blocking ring (62).

6. The intelligent laboratory sample sampling robot according to claim 5, characterized in that: A cleaning shaft sleeve (64) is also slidably sleeved outside the liquid extraction pipe (4).

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