Automatic sampling equipment for laboratory detection

Abstract

The utility model discloses automatic sampling equipment for laboratory detection, which relates to the technical field of sampling equipment and comprises a supporting base and a supporting frame, the supporting frame is fixed on the top surface of one side of the supporting base, a servo motor is arranged on the top surface of the supporting frame, and a rotating disc is arranged on the bottom surface of the top of the supporting frame. The output end of the servo motor rotationally penetrates through the supporting frame and is fixed to the top face of the rotating disc, the supporting disc is fixed to the lower portion of the rotating disc, a plurality of sampling needle tubes are fixed to the supporting disc at equal intervals, and the first servo air cylinder is arranged at the center of the top face of the supporting disc. According to the automatic sampling device for laboratory detection, cleaning is carried out once sampling is carried out, so that sampling and placement can be synchronously completed while cross contamination is avoided, the problem that an existing automatic sampling device for laboratory detection is prone to cross contamination or tedious and inconvenient to operate during sampling is solved, and the accuracy and purity during sampling are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling equipment technical field especially relates to a laboratory detection automation sampling equipment. BACKGROUND

[0002] When planting agricultural products, in order to study the influence of production environment on the growth of agricultural products, the production environment needs to be monitored, and when monitoring, the soil needs to be sampled and detected at multiple sites and multiple points, usually including surface soil, bottom soil and soil root system, and the detection content generally includes physical and chemical detection, heavy metal detection and biological detection, and multiple samples need to be prepared.

[0003] After sample collection, sampling needs to be carried out according to the detection type, and when sampling, the positions and depths during sample collection are different, mutual contamination needs to be avoided, but in the prior art, in order to avoid mutual contamination, the needle tube needs to be cleaned every time sampling, which leads to complicated and time-consuming operation during sampling. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems of mutual contamination or complicated and inconvenient operation of laboratory detection automation sampling equipment in the prior art during sampling, and provides a kind of laboratory detection automation sampling equipment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: including support base and support frame, the support base one side top surface is fixed with support frame, the support frame top surface is provided with servo motor, the support frame top bottom surface is provided with rotating disc, the servo motor output end rotation penetrates support frame and is fixed in rotating disc top surface, the rotating disc below is fixed with support disc, the support disc is equidistantly fixed with a plurality of sampling needle tubes, the support disc top surface center position is provided with servo cylinder no.

[0006] Preferably, the bottom of the support disc is provided with a fixed guide plate, a plurality of guide grooves are formed in the edge of the fixed guide plate, and the guide grooves are matched with the storage tubes, and the fixed guide plate is symmetrically fixed with a fixed plate between the side close to the support frame and the support frame.

[0007] Preferably, a connecting rod is fixed between the top surface of the support disc and the bottom surface of the rotating disc between every two adjacent sampling needle tubes, and the distance between the top surface of each sampling needle tube and the bottom surface of the rotating disc is greater than the height of the sampling needle tube.

[0008] Preferably, the connecting plate is arranged in a cross shape, the support disc is provided with a plurality of fixing holes equidistantly arranged and matched with the sampling needle tube, and the top surface of each sampling needle tube is provided with a sliding hole matched with the piston rod.

[0009] Preferably, the inner circle diameter of each storage tube is greater than the outer circle diameter of the sampling needle tube, and a positioning fence is arranged on the outer side of the front and left storage tubes and fixed to the top surface of the supporting plate, and each positioning fence is arranged in a horizontally placed U shape matched with the storage tube.

[0010] Preferably, the bottom of each storage tube is connected with a connecting valve, and the connecting valve is connected with a cleaning agent tank output end and a waste tank discharge inlet respectively.

[0011] Preferably, a servo cylinder II is arranged at the center of the top surface of the fixed guide plate, the bottom surface of the storage tube is provided with a supporting plate, and the output end of the servo cylinder II is slidably connected with the fixed guide plate and fixed to the top surface of the supporting plate.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] 1. In the utility model, the rotating and circulating sampling and cleaning are performed once for each sampling, so that cross contamination is avoided, sampling and placing can be completed simultaneously, the problem that the existing laboratory detection automatic sampling equipment is easily contaminated or is inconvenient to operate is solved, and the precision and purity during sampling are improved.

[0014] 2. In the utility model, the storage tubes serving as original sample tubes, sampling tubes, cleaning agent tubes and waste tubes are lifted by the liftable supporting plate, and after being lifted, the sampling needle tube can be conveniently used to draw and discharge samples or cleaning agents, and the practicability of the sampling equipment is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 a structure front view schematic diagram of the laboratory detection automatic sampling equipment is provided for the utility model;

[0016] Figure 2 a structure front view schematic diagram of the laboratory detection automatic sampling equipment is provided for the utility model;

[0017] Figure 3 a structure front view schematic diagram of the laboratory detection automatic sampling equipment is provided for the utility model;

[0018] Figure 4 a structure front view schematic diagram of the laboratory detection automatic sampling equipment is provided for the utility model.

[0019] Legend: 1. Support base; 2. Support frame; 3. Servo motor; 4. Rotating disk; 5. Support disk; 6. Sampling needle; 7. Connecting rod; 8. Connecting plate; 9. Servo cylinder one; 10. Piston rod; 11. Sampling piston; 12. Liquid guide tube; 13. Storage tube; 14. Support plate; 15. Positioning enclosure plate; 16. Servo cylinder two; 17. Fixed guide plate; 18. Fixed plate; 19. Guide groove; 20. Connecting valve. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. Example 1

[0022] like Figures 1-4 As shown, this utility model provides an automated sampling device for laboratory testing, including a support base 1 and a support frame 2. The support frame 2 is fixed to the top surface of one side of the support base 1. A servo motor 3 is installed on the top surface of the support frame 2. A rotating disk 4 is installed on the top and bottom surfaces of the support frame 2. The output end of the servo motor 3 rotates through the support frame 2 and is fixed to the top surface of the rotating disk 4. A support disk 5 is fixed below the rotating disk 4. A plurality of sampling needles 6 are fixed at equal intervals on the support disk 5. A servo cylinder 9 is installed at the center of the top surface of the support disk 5. A connecting plate 8 is fixed to the output end of the servo cylinder 9. A sampling piston 11 is slidably sleeved inside each sampling needle 6. A piston rod 10 is fixed to the top surface of each sampling piston 11. The end of the stopper rod 10 extending above the sampling needle tube 6 is fixed to the bottom surface of the connecting plate 8. A liquid guide tube 12 is fixed through the bottom surface of each sampling needle tube 6. A liftable storage tube 13 is provided below each sampling needle tube 6. The inner diameter of each storage tube 13 is larger than the outer diameter of the sampling needle tube 6. A positioning plate 15 is sleeved on the outside of the front and left storage tubes 13. The positioning plate 15 is fixed to the top surface of the support plate 14. Each positioning plate 15 is set as a horizontally placed U-shape to cooperate with the storage tube 13. The bottom of both ends of the remaining storage tubes 13 are connected to a connecting valve 20. The ends of the two connecting valves 20 away from the storage tubes 13 are respectively connected to the detergent tank output end and the waste tank discharge inlet.

[0023] The specific settings and effects of the embodiment are as follows: a connecting rod 7 is fixed between the top surface of the support disc 5 between every two adjacent sampling needle tubes 6 and the bottom surface of the rotating disc 4, so as to facilitate the fixed connection between the rotating disc 4 and the support disc 5; the distance between the top surface of each sampling needle tube 6 and the bottom surface of the rotating disc 4 is greater than the height of the sampling needle tube 6; the connecting plate 8 is in a cross shape; the support disc 5 is provided with a plurality of fixed holes at equal intervals and matched with the sampling needle tube 6; the top surface of each sampling needle tube 6 is provided with a sliding hole matched with the piston rod 10, so as to facilitate the up and down movement of the piston rod 10 through all the connecting plates 8. Embodiment two

[0024] As shown in Figures 1-4 , the bottom of the support disc 5 is provided with a fixed guide plate 17, the top surface of the fixed guide plate 17 is provided with a servo cylinder 2 16 at the center position, the bottom surface of the storage tube 13 is provided with a supporting plate 14, the output end of the servo cylinder 2 16 is slidably penetrated through the fixed guide plate 17 and fixed on the top surface of the supporting plate 14, a plurality of guide grooves 19 matched with the storage tube 13 are provided at equal intervals on the edge of the fixed guide plate 17, and the side of the fixed guide plate 17 close to the support frame 2 is symmetrically fixed with a fixed plate 18 between the support frame 2.

[0025] The effect of the whole embodiment is that the bottom supporting plate 14 is designed to be liftable, so as to facilitate the lifting of the storage tube 13 to the liquid guide tube 12 to extract the internal liquid during sampling or discharging, and avoid the liquid guide tube 12 from being unable to extract the liquid in the lower part of the storage tube 13.

[0026] The method for using the device and the working principle are as follows: when the sample needs to be extracted, the sample storage tube 13 containing the original sample liquid is clamped and placed in the positioning fence 15, then the sample storage tube 13 containing the sample is placed in another positioning fence 15, the outlet of the cleaning agent tank is connected to the connecting valve 20 close to the sample storage tube 13 containing the sample through a hose, and the other connecting valve 20 is connected to the inlet of the waste liquid tank through a hose, after the connection is completed, the servo cylinder two 16 is operated to drive the supporting plate 14 to move upwards, the supporting plate 14 moves upwards to the position where the liquid guide pipe 12 is inserted into the sample storage tube 13 containing the original sample liquid, the servo cylinder one 9 is operated to drive the connecting plate 8 to move upwards, the connecting plate 8 moves upwards to drive the sampling piston 11 to move upwards through the piston rod 10 to extract the sample, after the sample is extracted, the servo cylinder two 16 drives the supporting plate 14 to move downwards, at this time, the servo motor 3 is operated to drive the rotating disc 4 to rotate, when the rotating disc 4 rotates, the sampling needle tube 6 containing the sample is rotated to the above of the next sample storage tube 13, at this time, the servo cylinder one 9 drives the connecting plate 8 to move downwards to push the sampling piston 11 to discharge the sample in the tube to the sample storage tube 13 containing the sample, the servo motor 3 continues to rotate to the position of the sample storage tube 13 containing the cleaning liquid, the servo cylinder two 16 drives the supporting plate 14 to move upwards again, the sampling needle tube 6 extracts the cleaning agent, at the same time, the sampling needle tube 6 rotates to the position of the sample storage tube 13 containing the original sample liquid and moves downwards to extract the sample, after the cleaning, the servo motor 3 drives the sampling needle tube 6 to rotate to the position of the next sample storage tube 13 to discharge the cleaning agent, and then the sample can be extracted, so that the sample extraction and cleaning agent extraction are synchronized, the sample discharge and cleaning agent discharge are synchronized, the sample extraction efficiency is ensured, and the sample storage tube 13 containing the sample is replaced after the original sample liquid is contained in the tube.

[0027] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still falls within the protection scope of the present application.

Claims

1. A laboratory detection automation sampling device, comprising a support base (1) and a support frame (2), the support base (1) is fixed with the support frame (2) on one side top surface, characterized in that: The support frame (2) top surface is provided with a servo motor (3), the support frame (2) top bottom surface is provided with a rotating disc (4), the servo motor (3) output end rotates and penetrates the support frame (2) and is fixed on the rotating disc (4) top surface, the rotating disc (4) below is fixed with a support disc (5), the support disc (5) is equidistantly fixed with a plurality of sampling needle tubes (6), the support disc (5) top surface center position is provided with a servo cylinder one (9), the servo cylinder one (9) output end is fixed with a connecting plate (8), each sampling needle tube (6) inside is slidably sleeved with a sampling piston (11), each sampling piston (11) top surface is fixed with a piston rod (10), each piston rod (10) extends to the one end above sampling needle tube (6) and is fixed on the connecting plate (8) bottom surface, each sampling needle tube (6) bottom surface is fixed with a liquid guide pipe (12), each sampling needle tube (6) below is provided with a lift type storage tube (13).

2. A laboratory testing automation sampling apparatus according to claim 1, characterized in that: The support disc (5) below is provided with a fixed guide plate (17), the fixed guide plate (17) edge is equidistantly provided with a plurality of guide grooves (19) matched with the storage tube (13), the fixed guide plate (17) is fixed between the side close to the support frame (2) and the support frame (2) symmetrically with the fixed plate (18).

3. The laboratory testing automation sampling apparatus of claim 1, wherein: The support disc (5) top surface between each two adjacent sampling needle tubes (6) and the rotating disc (4) bottom surface are fixed with a connecting rod (7), the distance between each sampling needle tube (6) top surface and the rotating disc (4) bottom surface is greater than the height of the sampling needle tube (6).

4. The laboratory testing automation sampling apparatus of claim 1, wherein: The connecting plate (8) is provided as a cross type, the support disc (5) is equidistantly provided with a plurality of fixed holes matched with the sampling needle tube (6), each sampling needle tube (6) top surface is provided with a sliding hole matched with the piston rod (10).

5. The laboratory testing automation sampling apparatus of claim 1, wherein: The inner ring diameter of each storage tube (13) is greater than the outer ring diameter of the sampling needle tube (6), the front side and left side storage tube (13) outside is sleeved with a positioning fence (15), the positioning fence (15) is fixed on the top surface of the supporting plate (14), each positioning fence (15) is provided as a horizontally placed U-shaped type matched with the storage tube (13).

6. The laboratory testing automation sampling apparatus of claim 1, wherein: The bottom of the remaining storage tube (13) is connected with a connecting valve (20), the two connecting valves (20) are connected with the cleaner tank output end and the waste tank inlet respectively.

7. The laboratory testing automation sampling apparatus of claim 2, wherein: The fixed guide plate (17) top surface center position is provided with a servo cylinder two (16), the storage tube (13) bottom surface is provided with a supporting plate (14), the servo cylinder two (16) output end is slidably penetrated through the fixed guide plate (17) and is fixed on the supporting plate (14) top surface.

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