A bulk transfer volumetric device
Patent Information
- Application Number
- CN202522131584.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-09
AI Technical Summary
[0004]本实用新型要解决的技术问题是提供一种批量转移定容装置，能够解决现有技术中处理大批量样品时需耗费大量时间进行样品检测前处理中的消解管至离心管的转移、工作量大、前处理效率低的问题
[0011] With the above structure, the advantages of this utility model are as follows: the base is divided into sections to hold digestion tube racks and centrifuge tube racks respectively. The digestion tubes and centrifuge tubes are placed in the holes in the digestion tube racks and centrifuge tube racks respectively, and the springs in the holes can clamp and fix the digestion tubes and centrifuge tubes. By lifting and tilting the digestion tube rack as a whole, several digestion tubes can be lifted and tilted synchronously, and liquid can be poured into several centrifuge tubes simultaneously. When a large number of samples need to be processed, the liquid in several digestion tubes can be transferred to several centrifuge tubes simultaneously, and the batch transfer can be made up to a fixed volume, avoiding pouring one by one. The operation efficiency is high, the workload is reduced, and the pretreatment efficiency of detection is improved.
Smart Images
Figure CN224772728U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heavy metal detection, specifically to a batch transfer and volume-regulating device. Background Technology
[0002] Microwave digestion is an important sample pretreatment method for chemical component analysis. After microwave digestion, the digestate is usually transferred to a volumetric flask and diluted to volume.
[0003] The safety of heavy metals in food has received widespread attention. The national standard GB / 2762 specifies limits for heavy metal contamination for most food types, meaning that almost all foods require heavy metal testing. This presents a significant challenge for testing institutions, requiring large-scale testing. When processing large batches of samples, considerable time is spent on sample pretreatment. For example, samples digested by microwave must be transferred from PTFE digestion tubes to centrifuge tubes of a specific volume, a labor-intensive process involving individual pouring. Therefore, there is an urgent need for a batch transfer and volume-determination device to improve pretreatment efficiency for testing. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a batch transfer and volume-fixing device that can solve the problems of the prior art, which requires a lot of time to transfer digestion tubes to centrifuge tubes in the sample pretreatment process when processing a large number of samples, resulting in a large workload and low pretreatment efficiency.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: it includes a base, and the top of the base is provided with a digestion tube placement area and a centrifuge tube placement area in parallel, and the digestion tube placement area and the centrifuge tube placement area are respectively fitted with a digestion tube rack and a centrifuge tube rack; The height of the centrifuge tube rack is greater than the height of the digestion tube rack; The digestion tube rack and centrifuge tube rack are each provided with several cylindrical holes at corresponding positions, and digestion tubes and centrifuge tubes are placed in the holes; The holes on the digestion tube rack and centrifuge tube rack are respectively equipped with spring clips to hold and fix the digestion tubes and centrifuge tubes in place; After the digestion tube rack is lifted off the base, it tilts, causing several digestion tubes to tilt simultaneously. The several digestion tubes correspond to several centrifuge tubes, so that the liquid in the several digestion tubes can be transferred to the several centrifuge tubes at the same time. The digestion tube is tilted at an angle of 45°-90°.
[0006] Furthermore, the top of the digestion tube placement area and the centrifuge tube placement area are respectively provided with slots, and the bottom of the digestion tube rack and the centrifuge tube rack are respectively provided with locking posts corresponding to the slots. The digestion tube rack and the centrifuge tube rack are fixed to the digestion tube placement area and the centrifuge tube placement area on the top of the base by locking the locking posts in the slots.
[0007] Furthermore, each of the holes on the digestion tube rack and centrifuge tube rack is provided with four circumferentially arranged springs. In their natural state, the space enclosed by the four springs in each hole is smaller than the space occupied by the digestion tube or centrifuge tube. The four springs work together to hold and fix the digestion tube or centrifuge tube in place.
[0008] Furthermore, when the digestion tube is tilted and the centrifuge tube is tilted, the top outer wall of the digestion tube contacts the outside of the centrifuge tube.
[0009] Furthermore, the digestion tube rack is lifted and tilted as a whole by gripping it with a robotic arm.
[0010] Furthermore, one side of the digestion tube rack is equipped with several automatic liquid adding devices corresponding to several digestion tubes. The automatic liquid adding devices add liquid to the inside of the digestion tubes, and each automatic liquid adding device has a liquid adding pipe, the outlet of which is equipped with a spray head.
[0011] With the above structure, the advantages of this utility model are as follows: the base is divided into sections to hold digestion tube racks and centrifuge tube racks respectively. The digestion tubes and centrifuge tubes are placed in the holes in the digestion tube racks and centrifuge tube racks respectively, and the springs in the holes can clamp and fix the digestion tubes and centrifuge tubes. By lifting and tilting the digestion tube rack as a whole, several digestion tubes can be lifted and tilted synchronously, and liquid can be poured into several centrifuge tubes simultaneously. When a large number of samples need to be processed, the liquid in several digestion tubes can be transferred to several centrifuge tubes simultaneously, and the batch transfer can be made up to a fixed volume, avoiding pouring one by one. The operation efficiency is high, the workload is reduced, and the pretreatment efficiency of detection is improved. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the digestion tube rack and centrifuge tube rack of this utility model; Figure 3 This is a schematic diagram of the internal retaining spring of the digestion tube rack of this utility model in its natural state; Figure 4 This is a schematic diagram of the digestion tube of this utility model in a tilted state. Detailed Implementation
[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. The following embodiments will enable those skilled in the art to gain a more comprehensive understanding of this utility model, but do not limit this utility model to the scope of a single embodiment of a batch transfer and volume control device.
[0014] like Figure 1 As shown, the specific embodiment adopts the following technical solution: a batch transfer and volume-fixing device, including a base 1, with a digestion tube placement area and a centrifuge tube placement area arranged side by side on the top of the base 1, and a digestion tube rack 2 and a centrifuge tube rack 3 respectively clamped in the digestion tube placement area and the centrifuge tube placement area.
[0015] The locking structure of digestion tube rack 2 and centrifuge tube rack 3 is as follows: the top of the digestion tube placement area and the centrifuge tube placement area are respectively provided with a locking groove 11. The locking groove 11 is located around the digestion tube placement area and the centrifuge tube placement area. The bottom of digestion tube rack 2 and centrifuge tube rack 3 are respectively provided with locking posts corresponding to the locking groove 11. The digestion tube rack 2 and centrifuge tube rack 3 are fixed to the digestion tube placement area and the centrifuge tube placement area at the top of the base 1 by locking the locking posts in the locking groove 11. The locking groove design makes it easy to put and take out digestion tube rack 2 and centrifuge tube rack 3.
[0016] Since the height of digestion tube 6 is higher than that of centrifuge tube 7, the height of centrifuge tube rack 3 is set to be greater than that of digestion tube rack 2.
[0017] Combination Figure 2 and Figure 3 As shown, the digestion tube rack 2 and centrifuge tube rack 3 each have 5 corresponding cylindrical holes 4. Digestion tubes 6 and centrifuge tubes 7 are placed in the holes 4. In this embodiment, there are 5 holes 4. In actual use, the number of holes 4 is determined according to the requirements. The diameter of the holes 4 can be set according to the requirements. The models of digestion tubes 6 and centrifuge tubes 7 are selected according to the requirements. Spring pieces 5 are provided in the holes 4 to hold and fix the digestion tubes 6 and centrifuge tubes 7. There are four circumferentially arranged spring pieces 5 in the holes 4 on both the digestion tube rack 2 and centrifuge tube rack 3. In their natural state, the space enclosed by the four springs 5 is smaller than the space occupied by the digestion tube 6 or centrifuge tube 7. The four springs 5 work together to hold and fix the digestion tube 6 or centrifuge tube 7 in place. That is, the endpoints of the four springs 5 away from the inner wall of the hole 4 are four points evenly distributed on the same circle. The diameter of this circle is smaller than the diameter of the digestion tube 6 or centrifuge tube 7 placed in the hole 4. This allows the four springs 5 to work together to hold and fix the digestion tube 6 or centrifuge tube 7 in place after it is placed in the hole 4, preventing it from tipping over.
[0018] The digestion tube rack 2 is lifted off the base 1 by a robotic arm, as shown below. Figure 4As shown, after the top of the digestion tube rack 2 is higher than the top of the centrifuge tube rack 3, it is tilted and flipped to a certain angle, causing the five digestion tubes 6 to tilt simultaneously. The tilt angle of the digestion tubes is 45°-90°, and the flipping speed should not be too fast. After the five digestion tubes 6 are tilted, they are tilted to correspond to the five centrifuge tubes 7. The tilting can only begin when the outer wall of the top of the digestion tube 6 touches the outer side of the centrifuge tube 7 to prevent leakage. The tilting is slow to achieve synchronous transfer of liquid in the five digestion tubes 6 to the five centrifuge tubes 7, ensuring that the solution is poured into the centrifuge tubes 7. The robotic arm simulates the action of a human hand, grasps the digestion tube rack 2, pours the liquid in the digestion tubes 6 into the centrifuge tube 7 to its left, and then returns to its original position.
[0019] Five automatic liquid adding devices (not shown in the figure) are installed on one side of the digestion tube rack 2, corresponding to the five digestion tubes 6. The automatic liquid adding devices add liquid to the inside of the digestion tubes 6. The automatic liquid adding devices can set the liquid adding volume according to the fixed volume. After rinsing 2-3 times, the liquid is added to the left centrifuge tube together. The automatic liquid adding device has a liquid adding tube, and the liquid outlet of the liquid adding tube is equipped with a spray head, so that the added liquid enters the digestion tube 6 in a vaporized state instead of flowing down in a stream. This can completely clean the residual liquid in the digestion tube 6.
[0020] The robotic arm, spring 5, automatic liquid dispensing device, spray head and other components mentioned above are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods, and will not be described further.
[0021] Working principle: The base 1 is divided into sections to hold digestion tube rack 2 and centrifuge tube rack 3 respectively. Digestion tube 6 and centrifuge tube 7 are placed in the holes 4 in digestion tube rack 2 and centrifuge tube rack 3 respectively. The four springs 5 in the holes 4 work together to clamp and fix the digestion tube 6 and centrifuge tube 7. By lifting and tilting the digestion tube rack 2 as a whole, the five digestion tubes 6 can be lifted and tilted synchronously, and liquid can be poured into the five centrifuge tubes 7 at the same time. When a large number of samples need to be processed, the liquid in the five digestion tubes 6 can be transferred to the five centrifuge tubes 7 at the same time, avoiding pouring them one by one. This method has high operating efficiency, reduces workload, and improves the pre-processing efficiency of detection.
[0022] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A bulk transfer volumetric device characterized by: Includes a base, and the top of the base is provided with a digestion tube placement area and a centrifuge tube placement area side by side, and the digestion tube placement area and the centrifuge tube placement area are respectively fitted with a digestion tube rack and a centrifuge tube rack; The height of the centrifuge tube rack is greater than the height of the digestion tube rack; The digestion tube rack and centrifuge tube rack are each provided with several cylindrical holes at corresponding positions, and digestion tubes and centrifuge tubes are placed in the holes; The holes on the digestion tube rack and centrifuge tube rack are respectively equipped with spring clips to hold and fix the digestion tubes and centrifuge tubes in place; After the digestion tube rack is lifted off the base, it tilts, causing several digestion tubes to tilt simultaneously. The several digestion tubes correspond to several centrifuge tubes, so that the liquid in the several digestion tubes can be transferred to the several centrifuge tubes at the same time. The digestion tube is tilted at an angle of 45°-90°.
2. The batch transfer and volume control device according to claim 1, characterized in that: The digestion tube placement area and the centrifuge tube placement area are respectively provided with a slot at the top, and the digestion tube rack and the centrifuge tube rack are respectively provided with a locking post corresponding to the slot at the bottom. The digestion tube rack and the centrifuge tube rack are fixed to the digestion tube placement area and the centrifuge tube placement area at the top of the base by locking the locking post in the slot.
3. The batch transfer and volume control device according to claim 1, characterized in that: The digestion tube rack and centrifuge tube rack are each equipped with four circumferentially arranged springs in the holes. In their natural state, the space enclosed by the four springs in each hole is smaller than the space occupied by the digestion tube or centrifuge tube. The four springs work together to hold and fix the digestion tube or centrifuge tube in place.
4. The batch transfer and volume-regulating device according to claim 1, characterized in that: When the digestion tube is tilted and the centrifuge tube is tilted, the top outer wall of the digestion tube contacts the outside of the centrifuge tube.
5. A bulk transfer volumeter according to claim 1, wherein: The digestion tube rack is lifted and tilted as a whole by gripping it with a robotic arm.
6. A bulk transfer volumeter according to claim 1, wherein: One side of the digestion tube rack is equipped with several automatic liquid adding devices corresponding to several digestion tubes. The automatic liquid adding devices add liquid to the inside of the digestion tubes, and each automatic liquid adding device has a liquid adding pipe, the outlet of which is equipped with a spray head.