Diluting device

Abstract

The utility model relates to the technical field of detection equipment, and provides a dilution device which comprises a first feeding line, a second feeding line, a cache line, a transfer assembly and a sample adding assembly, the first feeding line, the temporary storage line and the second feeding line are sequentially arranged side by side, and a cover opening and closing assembly and a diluent adding assembly are sequentially arranged in the conveying direction of the temporary storage line; the first feeding line and the second feeding line are configured to be connected with different work stations; the cache line is used for caching the experimental vessels, and the cover opening and closing assembly is used for performing cover opening operation on the experimental vessels so that the diluent adding assembly can add diluents into the experimental vessels and perform cover closing operation on the experimental vessels added with the diluents; the transferring assembly is used for selectively transferring the experiment utensils added with the diluent to the first feeding line or the second feeding line; the sample adding assembly is used for adding samples into the experiment vessels on the first feeding line or the second feeding line. According to the diluting device provided by the utility model, the production efficiency of the diluting device is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a dilution device. Background Technology

[0002] When conducting project testing in the laboratory, it is usually necessary to dilute the liquid, that is, to reduce the concentration of the solute in the solution by adding solvent.

[0003] Currently, traditional laboratory dilution processes are typically completed on a strip-shaped workbench, with a feeding mechanism at one end and a discharging mechanism at the other. When diluting a solution, feeding occurs from one end of the workbench, and discharging from the other. Because the solution must be diluted completely before discharging can proceed, the feeding mechanism is prone to idleness, waiting for subsequent operations to complete before the next feeding can begin. This prevents continuous feeding and discharging operations, thus impacting overall production efficiency. Utility Model Content

[0004] This invention provides a dilution device to solve the problem in the prior art that continuous loading and unloading operations cannot be achieved during liquid dilution, thus affecting overall production efficiency.

[0005] This utility model provides a dilution device, including: a first feeding line, a second feeding line, a buffer line, a transfer component, and a sample addition component;

[0006] The first feeding line, the buffer line, and the second feeding line are arranged side by side in sequence, and an opening and closing cover assembly and a diluent adding assembly are arranged in sequence along the conveying direction of the buffer line; the first feeding line and the second feeding line are configured to be connected to different workstations;

[0007] The buffer line is used to buffer experimental vessels, and the opening and closing lid assembly is used to open the experimental vessels so that the diluent adding assembly can add diluent to the experimental vessels, and to close the lid of the experimental vessels containing the added diluent.

[0008] The transfer assembly is used to selectively transfer experimental vessels containing the diluent to the first feed line or the second feed line; the sample addition assembly is used to add samples to the experimental vessels on the first feed line or the second feed line.

[0009] According to the dilution device provided by this utility model, the transfer assembly includes: a first transverse transfer assembly and a second transverse transfer assembly;

[0010] The first transverse component is disposed between the first feed line and the buffer line, and the first transverse component is used to move the experimental vessel between the buffer line and the first feed line;

[0011] The second transverse component is disposed between the second feed line and the buffer line, and the second transverse component is used to move the experimental vessel between the buffer line and the second feed line.

[0012] According to the dilution device provided by this utility model, the first transverse component and the second transverse component include a linear module, a clamping member and a telescopic member;

[0013] The height of the linear module is higher than the height of the first feeding line, the second feeding line and the buffer line. The first end of the telescopic member is connected to the slide of the linear module, and the second end of the telescopic member is connected to the clamping member. The clamping member is used to clamp the experimental vessel.

[0014] A dilution device according to the present invention further includes: a shaking component;

[0015] The output ends of both the first and second feeding lines are equipped with the shaking component, which is used to shake the experimental vessel.

[0016] According to the dilution device provided by this utility model, the shaking assembly includes: a clamping mechanism, a cam mechanism, and an elastic element;

[0017] The clamping mechanism is used to clamp the experimental vessel, and the clamping mechanism is configured to be movable along a first direction;

[0018] The elastic element abuts against the first end of the clamping mechanism along the first direction, and the cam mechanism abuts against the second end of the clamping mechanism along the first direction, and cooperates with the elastic element to drive the clamping mechanism to reciprocate along the first direction.

[0019] According to the dilution device provided by this utility model, both the first feeding line and the second feeding line include a parallel section and a vertical section;

[0020] The parallel segment is arranged parallel to the buffer line, the vertical segment is connected perpendicularly to the parallel segment, and the end of the vertical segment away from the parallel segment is configured to be connected to the workstation.

[0021] The clamping mechanism is located in the vertical section.

[0022] According to the present invention, a dilution device is provided, wherein the opening and closing cover assembly includes a clamp and a lifting mechanism;

[0023] The experimental vessel is configured to be placed on a vessel rack, and the clamp is located at the lifting end of the lifting mechanism. The clamp is used to hold the vessel lid corresponding to the experimental vessel.

[0024] According to the present invention, a dilution device is provided, wherein multiple clamps are provided and the multiple clamps are arranged side by side.

[0025] According to the present invention, a dilution device is provided, wherein the sample addition component includes a robotic arm, a pipette, and a gripper; the gripper and the pipette are installed at intervals at the execution end of the robotic arm, the pipette is used to sample the sample and add the sample to the experimental vessel, the gripper is used to hold the lid of the experimental vessel, and performs opening and closing operations on the experimental vessel with the assistance of the robotic arm.

[0026] According to the present invention, a dilution device is provided, wherein the dilution liquid addition component includes a reagent tank, a peristaltic pump, and an addition head;

[0027] The reagent container, the peristaltic pump, and the dispensing head are connected in sequence. The dispensing head is located above the buffer line and is used to add diluent to the experimental vessel.

[0028] The dilution device provided by this utility model arranges a first feeding line, a second feeding line, and a buffer line side by side. The buffer line is used for buffering experimental vessels and adding diluent. A transfer component transfers the experimental vessels with added diluent to either the first or second feeding line. Samples are added to the first and second feeding lines via a sample adding component. After a batch of experimental vessels is loaded into the buffer area, the buffer area can hold both empty and filled experimental vessels. The first and second feeding lines can perform... The addition of samples and the buffering of diluted experimental vessels await transfer to other workstations are features of this dilution device. Compared to a linear workstation with one end for loading and the other for unloading, where loading can only begin after unloading is complete, this device can buffer experimental vessels and vessels containing diluent, and can also temporarily store experimental vessels after sample dilution. The loading mechanism can proceed with the next loading without waiting. The buffer line, the first feeding line, and the second feeding line can all temporarily store experimental vessels at different stages, thus improving the production efficiency of the dilution device. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1This is a top view of the dilution device provided by this utility model.

[0031] Figure 2 This is a top view of the shaking component provided by this utility model.

[0032] Figure 3 This is a schematic diagram of the main structure of the opening and closing cover assembly provided by this utility model.

[0033] Figure 4 This is a three-dimensional structural diagram of the sample addition component provided by this utility model.

[0034] Figure label:

[0035] 1. Dilution device;

[0036] 11. First feeding line; 12. Second feeding line; 13. Buffer line; 14. Transfer assembly; 15. Sample addition assembly; 16. Shaking assembly; 111. Parallel section; 112. Vertical section; 131. Opening and closing cap assembly; 132. Diluent addition assembly; 141. First transverse movement assembly; 142. Second transverse movement assembly; 151. Robotic arm; 152. Pipette; 153. Gripper; 154. Slide rail; 161. Clamping mechanism; 162. Cam mechanism; 163. Elastic element; 1311. Fixture; 1312. Lifting mechanism; 1621. Cam; 1622. Motor;

[0037] 2. Experimental glassware; 21. Glassware lids;

[0038] 3. Utensil rack. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] The following is combined with Figures 1-4 The dilution device provided in this utility model will be described in detail through specific embodiments and application scenarios.

[0041] In some embodiments, such as Figure 1 As shown, this embodiment provides a dilution device 1, including: a first feeding line 11, a second feeding line 12, a buffer line 13, a transfer component 14, and a sample addition component 15.

[0042] The first feeding line 11, the buffer line 13, and the second feeding line 12 are arranged side by side in sequence. An opening and closing cover assembly 131 and a diluent adding assembly 132 are arranged in sequence along the conveying direction of the buffer line 13. The first feeding line 11 and the second feeding line 12 are configured to be connected to different workstations.

[0043] The buffer line 13 is used to buffer the experimental vessel 2, and the opening and closing assembly 131 is used to open the experimental vessel 2 so that the diluent adding assembly 132 can add diluent to the experimental vessel 2, and to close the experimental vessel 2 with added diluent.

[0044] The transfer assembly 14 is used to selectively transfer the experimental vessel 2 containing diluent to the first feed line 11 or the second feed line 12; the sample addition assembly 15 is used to add a sample to the experimental vessel 2 on the first feed line 11 or the second feed line 12.

[0045] Understandably, the first feeding line 11, the second feeding line 12, and the buffer line 13 can all be equipped with conveyor belts, and the conveying direction of the conveyor belts can be changed, that is, forward conveying and reverse conveying can be realized according to the actual conveying needs.

[0046] Since experimental glassware 2 needs to be used in a sterile environment, the experimental glassware 2 transferred from other workstations is sterilized and covered with glassware lid 21. Before adding diluent to experimental glassware 2, the lid needs to be opened; after adding diluent, the lid is closed. A buffer line 13 is located between the first feed line 11 and the second feed line 12. The buffer line 13 enables the storage of experimental glassware 2 with lid 21, the opening and closing of the lid, the addition of diluent to experimental glassware 2, and the temporary storage of experimental glassware 2 after adding diluent.

[0047] The lid opening and closing assembly 131 can open and close the experimental vessel 2. Specifically, the lid opening and closing assembly 131 can use a drive rod to open the lid and a pressure roller to close the lid.

[0048] The diluent addition component 132 is used to add a certain volume of diluent to the experimental vessel 2 to dilute the subsequently added sample according to a predetermined dilution ratio. If it is necessary to obtain diluents with different dilution ratios, the diluent can be added again to the diluent containing the sample to obtain samples with different dilution concentrations. Specifically, the diluent addition component 132 can add a quantitative amount of diluent through the dispensing head.

[0049] Alternatively, the diluent can be physiological saline.

[0050] The first feed line 11 and the second feed line 12 are connected to different workstations to provide diluted samples to different workstations. The first feed line 11 and the second feed line 12 are capable of opening and closing the lids of experimental vessels 2 that have been filled with diluent and adding samples to provide diluted samples to the next workstation.

[0051] The transfer assembly 14 can transfer the experimental vessel 2 containing diluent to the first feeding line 11 or the second feeding line 12. Specifically, the transfer assembly 14 can be a robot, which performs the transfer operation of the experimental vessel 2 between the spaced buffer line 13 and the first feeding line 11 or the second feeding line 12. The transfer assembly 14 can also be a track-changing device, in which the buffer line 13 is connected to the first feeding line 11 and the second feeding line 12, and a track-changing device is set on the connected conveyor line for track-changing operation of conveying the experimental vessel 2.

[0052] The sample adding component 15 is used to add samples to the experimental vessels 2 on the first feeding line 11 and the second feeding line 12. Since the first feeding line 11 and the second feeding line 12 are connected to different workstations, the samples added to the experimental vessels 2 on the first feeding line 11 and the second feeding line 12 can be different types of samples.

[0053] In practical applications, experimental vessel 2 with lid 21 is placed on buffer line 13. As buffer line 13 moves forward, experimental vessel 2 is conveyed to the underside of lid opening and closing assembly 131. Lid opening and closing assembly 131 opens the lid of experimental vessel 2. Then, experimental vessel 2 with lid 21 removed continues to be conveyed forward to the underside of diluent adding assembly 132. Diluent adding assembly 132 adds a certain amount of diluent to experimental vessel 2. Buffer line 13 changes its conveying direction, and experimental vessel 2 with added diluent is conveyed backward to the underside of lid opening and closing assembly 131. Lid opening and closing assembly 131 closes the lid of experimental vessel 2, and lid 21 is put back on experimental vessel 2. The buffer line 13 changes direction again and conveys forward. The experimental vessel 2 continues to be conveyed forward after passing under the diluent addition component 132 and is conveyed to the vicinity of the transfer component 14. The transfer component 14 transfers the experimental vessel 2 with added diluent to the first feed line 11 or the second feed line 12. The experimental vessel 2 is opened, sample is added and the lid is closed on the first feed line 11 or the second feed line 12, and it is conveyed to the output end for temporary storage for sample addition at the next station.

[0054] The dilution device 1 provided by this utility model consists of a first feeding line 11, a second feeding line 12, and a buffer line 13 arranged side by side. The buffer line 13 is used for buffering experimental vessels 2 and adding diluent. A transfer component 14 transfers the experimental vessels 2 with added diluent to the first feeding line 11 or the second feeding line 12. A sample adding component 15 adds samples to the first feeding line 11 and the second feeding line 12. After a batch of experimental vessels 2 is fed into the buffer area, the buffer area can buffer both empty experimental vessels 2 and experimental vessels 2 with added diluent. The first feeding line 11 and the second feeding line 13... The feed line 12 can add samples and buffer the diluted experimental vessels 2 for transfer to other stations. Compared with the strip station with one end feeding and the other end discharging, which requires waiting for discharging to be completed before feeding can be performed, the dilution device 1 provided by this utility model can buffer the experimental vessels 2 and the experimental vessels 2 with added diluent, and can also temporarily store the experimental vessels 2 after the samples have been diluted. The feeding mechanism can start the next feeding without waiting. The buffer line 13, the first feed line 11 and the second feed line 12 can all temporarily store the experimental vessels 2 at different stages, which improves the production efficiency of the dilution device 1.

[0055] In some embodiments, such as Figure 1 As shown, the transfer component 14 in this embodiment includes: a first lateral transfer component 141 and a second lateral transfer component 142.

[0056] The first transverse component 141 is disposed between the first feed line 11 and the buffer line 13. The first transverse component 141 is used to move the experimental vessel 2 between the buffer line 13 and the first feed line 11.

[0057] The second transverse component 142 is located between the second feed line 12 and the buffer line 13. The second transverse component 142 is used to move the experimental vessel 2 between the buffer line 13 and the second feed line 12.

[0058] Understandably, the two ends of the first transverse component 141 are connected to the first feed line 11 and the buffer line 13, respectively. The first transverse component can transfer the experimental vessel 2 with added diluent to the first feed line 11. Specifically, the first transfer component 14 can use a paddle to push the experimental vessel 2 into the first feed line 11, or it can use a push component to push the experimental vessel 2 into the first feed line 11.

[0059] The two ends of the second transverse component 142 are connected to the second feed line 12 and the buffer line 13, respectively. The second transverse component can transfer the experimental vessel 2 with added diluent to the second feed line 12. Specifically, the second transfer component 142 can use a paddle to push the experimental vessel 2 into the second feed line 12, or it can use a push component to push the experimental vessel 2 into the second feed line 12.

[0060] In some embodiments, such as Figure 1 As shown, the first lateral movement component 141 and the second lateral movement component 142 in this embodiment include a linear module, a clamping member, and a telescopic member.

[0061] The height of the linear module is higher than the height of the first feeding line 11, the second feeding line 12 and the buffer line 13. The first end of the telescopic component is connected to the slide of the linear module, and the second end of the telescopic component is connected to the clamping component. The clamping component is used to clamp the experimental vessel 2.

[0062] Understandably, the first transverse component 141 and the second transverse component 142 are located above the first feed line 11, the second feed line 12, and the buffer line 13 to avoid interference with the transport of the experimental vessel 2. The linear module can be directly installed on the first feed line 11, the second feed line 12, and the buffer line 13, or a bracket can be set beside the first feed line 11, the second feed line 12, and the buffer line 13, and the linear module can be installed on the bracket.

[0063] Since the clamping of experimental vessel 2 needs to be raised and lowered in the vertical direction, this embodiment uses a telescopic component to change the height of the clamping component.

[0064] In practical applications, the clamping component moves downward under the drive of the telescopic component to reach the height of the experimental vessel 2. The clamping component then holds the experimental vessel 2. Then, driven by the telescopic component, the clamping component moves the experimental vessel 2 upward. Through the lateral movement of the slide of the linear module, the experimental vessel 2 is moved on the upper side of the first feeding line 11, the second feeding line 12, and the buffer line 13. Finally, the telescopic component drives the clamping component to descend, placing the experimental vessel 2 on the first feeding line 11, the second feeding line 12, or the buffer line 13. The clamping component releases the experimental vessel 2, completing the lateral movement of the experimental vessel 2.

[0065] This embodiment uses a linear module, a clamping component, and a telescopic component to achieve the movement of the experimental vessel 2 in both the height and width directions relative to the first feeding line 11, the second feeding line 12, and the buffer line 13. This allows for the lateral movement of the experimental vessel 2. The structure is simple and easy for operators to use.

[0066] In some embodiments, such as Figure 1 As shown, the dilution device 1 in this embodiment further includes a shaking component 16.

[0067] Both the first feeding line 11 and the second feeding line 12 are equipped with a shaking component 16 at their output ends. The shaking component 16 is used to shake the experimental vessel 2.

[0068] Understandably, after the sample is added to the diluent in experimental vessel 2, the shaking assembly 16 can ensure that the diluent and sample in experimental vessel 2 are mixed evenly. Experimental vessel 2 is shaken at the output end of the first feed line 11 or the second feed line 12 and can be used in other workstations. The shaking assembly 16 can significantly improve experimental accuracy and efficiency by shaking the diluent and sample.

[0069] Specifically, the shaking component 16 can be an oscillator or a shaker.

[0070] In some embodiments, such as Figure 2 As shown, the shaking assembly 16 in this embodiment includes: a clamping mechanism 161, a cam mechanism 162, and an elastic element 163.

[0071] The clamping mechanism 161 is used to clamp the experimental vessel 2, and the clamping mechanism 161 is configured to be movable along a first direction.

[0072] The elastic element 163 abuts against the first end of the clamping mechanism 161 along the first direction, and the cam mechanism 162 abuts against the second end of the clamping mechanism 161 along the first direction, and cooperates with the elastic element 163 to drive the clamping mechanism 161 to reciprocate along the first direction.

[0073] Understandably, the first direction is the reciprocating vibration direction of the experimental vessel 2. In this embodiment, the first direction refers to the direction perpendicular to the conveying direction of the first feeding line 11 and the second feeding line 12.

[0074] The cam mechanism 162 includes a cam 1621 and a motor 1622. The motor 1622 is mounted at the center of the cam 1621 and can drive the cam 1621 to rotate. In this embodiment, the cam 1621 has an elliptical structure with a small difference in length between its major and minor axes. When the motor 1622 drives the cam 1621 to rotate, the major and minor axes of the ellipse successively abut against the second end of the clamping mechanism 161. When the major axis of the ellipse abuts against the clamping mechanism 161, the cam 1621 pushes the clamping mechanism 161 toward the elastic member 163. The elastic member 163 is compressed and stores elastic potential energy under the pushing force. When the minor axis of the ellipse abuts against the clamping mechanism 161, the elastic potential energy of the elastic member 163 is released, and the elastic member 163 pushes the clamping mechanism 161 toward the cam 1621. As the cam 1621 rotates, the major axis and minor axis of the ellipse abut against the second end of the clamping mechanism 161 in sequence, and the elastic element 163 is compressed and stretched, causing the experimental vessel 2 held by the clamping structure to move periodically, thereby shaking the sample in the experimental vessel 2.

[0075] In some embodiments, such as Figure 1 As shown, the first feeding line 11 and the second feeding line 12 in this embodiment both include a parallel section 111 and a vertical section 112.

[0076] Parallel segment 111 is set parallel to buffer line 13, vertical segment 112 is perpendicularly connected to parallel segment 111, and the end of vertical segment 112 away from parallel segment 111 is configured to be connected to workstation.

[0077] The clamping mechanism 161 is located in the vertical section 112.

[0078] Understandably, the vertical section 112 connects to the workstation and is used for mixing samples and supplying the diluted, mixed samples to the workstation. The horizontal section 111 is used for transferring experimental vessels 2 with the buffer line 13 and for adding samples.

[0079] The connection between the vertical section 112 and the parallel section 111 is an L-shaped conveyor. A steering wheel is provided at the connection, which is rotatably mounted at the connection point to transport the experimental vessel 2 between the vertical section 112 and the parallel section 111. Furthermore, a guide plate is provided on the outside of the connection point to guide the experimental vessel 2 to turn between the vertical section 112 and the parallel section 111.

[0080] In some embodiments, such as Figure 3 As shown, the opening and closing cover assembly 131 of this embodiment includes a clamp 1311 and a lifting mechanism 1312.

[0081] The experimental vessel 2 is configured to be placed on the vessel rack 3, and the clamp 1311 is located at the lifting end of the lifting mechanism 1312. The clamp 1311 is used to hold the vessel lid 21 corresponding to the experimental vessel 2.

[0082] Understandably, in one embodiment, the experimental vessel 2 is a test tube, which is placed on a test tube rack. Because the placement hole on the test tube rack is smaller at the top and larger at the bottom, the test tube passes through the bottom of the rack and is securely fixed to it. The test tube stopper has a frustum-shaped structure, with the radius of the stopper closer to the test tube being smaller and the radius of the stopper farther from the test tube being larger. The clamp 1311 holds the larger end of the frustum-shaped structure and engages with the lifting mechanism 1312 to lift and lower, thereby enabling the opening and closing of the test tube and the box.

[0083] In this embodiment, a support frame can be set on or beside the buffer line 13, and the lifting mechanism 1312 is mounted on the support frame. A clamp 1311 is connected to the lifting section of the lifting mechanism 1312, and the clamp 1311 can change its position in the height direction as the lifting end moves. The clamp 1311 can clamp and release the container lid 21. When the clamp 1311 clamps the container lid 21, the lifting mechanism 1312 drives the clamp 1311 to rise, thereby realizing the opening operation of the experimental container 2. Alternatively, when the clamp 1311 clamps the container lid 21, the lifting mechanism 1312 drives the clamp 1311 to fall, the container lid 21 comes into contact with the experimental container 2, and the clamp 1311 releases the container lid 21, realizing the closing operation of the experimental container 2.

[0084] In some embodiments, such as Figure 3 As shown, this embodiment has multiple clamps 1311 arranged side by side.

[0085] Understandably, multiple experimental vessels 2 can be arranged side by side on the vessel rack 3, and the number of clamps 1311 is consistent with the number of experimental vessels 2 held on the vessel rack 3. Multiple clamps 1311 can simultaneously open and close multiple experimental vessels 2 on the vessel rack 3. Compared with opening and closing the lids one by one, the opening and closing lid assembly 131 of this embodiment is more efficient, and can conveniently realize the opening and closing lid operations of all experimental vessels 2 on the vessel rack 3 in one go.

[0086] In some embodiments, such as Figure 4 As shown, the sample addition component 15 in this embodiment includes a robotic arm 151, a pipette 152, and a gripper 153.

[0087] The gripper 153 and the pipette 152 are installed at intervals at the execution end of the robotic arm 151. The pipette 152 is used to take samples and add them to the experimental vessel 2. The gripper 153 is used to hold the lid 21 of the experimental vessel 2 and, with the cooperation of the robotic arm 151, to open and close the lid of the experimental vessel 2.

[0088] Understandably, the robotic arm 151 can be directed toward either the first feed line 11 or the second feed line 12, and the robotic arm 151 can be a six-axis robotic arm 151. The robotic arm 151 is used to control the displacement of the gripper 153 so that the gripper 153 can grasp the lid 21 of the experimental vessel 2, and thus perform the opening and closing operation of the experimental vessel 2 as the robotic arm 151 moves closer to or away from the experimental vessel 2.

[0089] Meanwhile, a pipette rack is provided next to the buffer line 13, which contains 152 pipette tips of various sizes for quantitatively aspirating samples of different volumes.

[0090] The robotic arm 151 is also used to control the position of the pipette 152 so that the pipette 152 can be connected to the pipette tip placed on the pipette holder, and then the sampling operation can be completed based on the pipette tip.

[0091] In some examples, a slide rail 154 is provided on the side of the first feeding line 11 and the second feeding line 12. The slide rail 154 extends in a direction perpendicular to the conveying direction of the first feeding line 11. The bottom of the robotic arm 151 can move along the slide rail 154 to operate the first feeding line 11 and the second feeding line 12.

[0092] In some embodiments, the diluent addition assembly 132 of this embodiment includes a reagent tank, a peristaltic pump, and an addition head.

[0093] The reagent container, peristaltic pump, and dispensing head are connected in sequence. The dispensing head is located above the buffer line 13 and is used to add diluent to the experimental vessel 2.

[0094] Understandably, there are two reagent tanks and two peristaltic pumps, with each reagent tank and each peristaltic pump located on the first feed line 11 or the second feed line 12. The reagent tanks are connected to the addition head via pipelines, and the peristaltic pumps are located on the pipelines.

[0095] The peristaltic pump can precisely control the flow rate in the tubing between the reagent container and the dispensing head to achieve quantitative addition of the diluent to experimental vessel 2. Furthermore, the peristaltic pump can control the specific timing of diluent addition, enabling quantitative and timed addition of the diluent to experimental vessel 2, thus improving the automation level of the dilution device 1.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dilution device characterized by, The application relates to a sample adding device. The device comprises a first feeding line, a second feeding line, a buffer line, a transfer assembly and a sample adding assembly. The first feeding line, the buffer line and the second feeding line are arranged side by side in sequence, and are provided with an opening and closing cover assembly and a diluent adding assembly in sequence along the conveying direction of the buffer line; the first feeding line and the second feeding line are configured to be connected with different work stations. The buffer line is used for buffering experimental vessels; the opening and closing cover assembly is used for opening the cover of the experimental vessel, adding diluent into the experimental vessel by the diluent adding assembly, and closing the cover of the experimental vessel after the diluent is added. The transfer assembly is used for selectively transferring the experimental vessel with the diluent to the first feeding line or the second feeding line. The sample adding assembly is used for adding a sample into the experimental vessel on the first feeding line or the second feeding line.

2. The dilution device of claim 1, wherein, The transfer assembly comprises a first horizontal transfer assembly and a second horizontal transfer assembly. The first horizontal transfer assembly is arranged between the first feeding line and the buffer line, and is used for moving the experimental vessel between the buffer line and the first feeding line. The second horizontal transfer assembly is arranged between the second feeding line and the buffer line, and is used for moving the experimental vessel between the buffer line and the second feeding line.

3. The dilution device of claim 2, wherein, The first horizontal transfer assembly and the second horizontal transfer assembly comprise a linear module, a clamping piece and an extension piece. The linear module is arranged at a height higher than the heights of the first feeding line, the second feeding line and the buffer line; the first end of the extension piece is connected with the sliding table of the linear module; the second end of the extension piece is connected with the clamping piece; and the clamping piece is used for clamping the experimental vessel.

4. The dilution device of claim 1, wherein, The device further comprises a shaking assembly. The output ends of the first feeding line and the second feeding line are provided with the shaking assembly, and the shaking assembly is used for shaking the experimental vessel. The shaking assembly comprises a clamping mechanism, a cam mechanism and an elastic piece.

5. The dilution device of claim 4, wherein, The clamping mechanism is used for clamping the experimental vessel, and is arranged to be movable in a first direction. The elastic piece abuts against the first end of the clamping mechanism in the first direction; the cam mechanism abuts against the second end of the clamping mechanism in the first direction, and cooperates with the elastic piece to drive the clamping mechanism to reciprocate in the first direction. The first feeding line and the second feeding line each comprise a parallel section and a vertical section.

6. The dilution device of claim 5, wherein, The parallel section is arranged in parallel with the buffer line; the vertical section is connected with the parallel section perpendicularly; and the end of the vertical section away from the parallel section is configured to be connected with the work station. The clamping mechanism is arranged in the vertical section. The opening and closing cover assembly comprises a clamp and a lifting mechanism; the experimental vessel is arranged on a vessel rack; the clamp is arranged on the lifting end of the lifting mechanism; and the clamp is used for clamping the corresponding vessel cover of the experimental vessel.

7. The dilution device of claim 1, wherein, The clamp is provided with a plurality of clamps arranged side by side.

8. The dilution device of claim 7, wherein, The sample adding assembly comprises a mechanical arm, a pipette and a clamping jaw.

9. The dilution device of claim 1, wherein, ​ The gripper and the pipette are installed at the execution end of the mechanical arm, the pipette is used for sampling and adding the sample to the experimental vessel, the gripper is used for clamping the cover of the experimental vessel, and the cover opening and closing operation of the experimental vessel is performed under the cooperation of the mechanical arm.

10. The dilution device of claim 1, wherein, The diluent adding assembly comprises a reagent tank, a peristaltic pump and an adding head. The reagent tank, the peristaltic pump and the adding head are sequentially communicated, the adding head is arranged on the upper side of the buffer line, and the adding head is used for adding diluent to the experimental vessel.

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