Automatic sampling system

Abstract

The utility model provides an automatic sample injection system, which comprises a tray for accommodating a sample bottle; the conveying device comprises an upper conveying frame and has a first conveying direction for horizontally conveying the trays; the lower conveying frame is located below the upper conveying frame and has a second conveying direction for horizontally conveying the trays, and the first conveying direction is opposite to the second conveying direction; the lifting device comprises a lifting seat which is positioned on the same side of the upper conveying frame and the lower conveying frame; and the bearing frame is matched with the lifting seat and can vertically move in the extending direction of the lifting seat so as to be in butt joint with the conveying ends of the upper conveying frame and the lower conveying frame correspondingly, and transfer of the trays among the upper conveying frame, the lower conveying frame and the bearing frame is achieved. The sample detection and preparation efficiency is improved, the sample detection and preparation precision is improved, the method can adapt to the batch sample treatment process, and the batch sample detection and analysis requirement is greatly met.

Description

Technical Field

[0001] The utility model relates to the field of sample detection and preparation, and particularly to an automatic sampling system. Background Art

[0002] Currently, during the detection and preparation of samples, manual sampling is generally adopted. When it is necessary to batch-detect and prepare samples, the manual sampling method not only greatly limits the detection and preparation efficiency, but also is not conducive to improving the accuracy of sample detection and preparation. Based on this, setting up dedicated automated processing equipment to batch-detect and prepare samples can quickly, efficiently and accurately process samples to meet the subsequent detection and analysis requirements.

[0003] Chinese Utility Model Patent CN215591763U discloses a sample rack conveying track. This conveying track uses a stepping motor as the power source, which can achieve stable transportation and stable power. The synchronous belt drives the driving wheel to rotate, and then the conveyor belt runs, realizing non-sticking during operation. The aluminum profile supports the conveying track to achieve the flatness of the plane, making the transportation more stable. Specifically, the conveying track includes a frame body. A conveyor belt track is arranged on the upper part of the frame body. Baffles are fixed on both sides of the track. A driving wheel and a driven wheel are respectively arranged at both ends of the conveyor belt. A tensioning structure is arranged in the middle of the track. A stepping motor is fixed on the frame body. The stepping motor and the driving wheel are driven by a belt; the tensioning structure includes a tensioning wheel plate. A first guiding wheel and a second guiding wheel are fixed on the tensioning wheel plate. A tensioning wheel is arranged at the lower part between the two guiding wheels. The conveyor belt at the tensioning wheel plate extends from the upper part of the first guiding wheel to the lower part of the tensioning wheel and the upper part of the second guiding wheel; the tensioning wheel is installed on a tensioning shaft arranged on the tensioning wheel plate. Tensioning shaft clamps fixed by set screws are respectively arranged at both ends of the tensioning shaft. Tensioning fixing blocks fixed on both sides of the tensioning wheel plate are installed on the upper part of the tensioning shaft clamp; Screws are arranged on the tensioning fixing block. When the screws are tightened downward, the end of the screw contacts the upper surface of the tensioning clamp block. The tensioning clamp block is processed with a long strip-shaped opening. By tightening the screws, the tensioning clamp block is driven to move downward, and then the tensioning shaft moves downward to achieve belt tensioning.

[0004] Although the sample rack conveying track of this structure can achieve automatic conveying of samples, the single-track setting makes the equipment only show a one-way conveying function as a whole. For some scenarios that require automatic cyclic sampling, this equipment obviously cannot meet this requirement. Moreover, the transmission method involved in the conveying track is formed by the cooperation of various components such as driving wheels, driven wheels, stepping motors, belts, tensioning wheels, first guiding wheels and second guiding wheels. The transmission structure is complex and is not conducive to maintaining transmission stability during actual application.

[0005] It can be seen that the prior art needs to be further improved. Summary of the Utility Model

[0006] In view of the above problems, an embodiment of the present utility model provides an automatic sampling system to solve the problem that the existing automatic sampling equipment cannot perform cyclic sampling.

[0007] An embodiment of the present utility model provides an automatic sampling system, including:

[0008] A tray for placing sample bottles;

[0009] A conveying device, including

[0010] An upper conveying rack having a first conveying direction for horizontally conveying the tray;

[0011] A lower conveying rack located below the upper conveying rack, having a second conveying direction for horizontally conveying the tray, and the first conveying direction is opposite to the second conveying direction;

[0012] A lifting device, including

[0013] A lifting seat located on the same side of the upper conveying rack and the lower conveying rack;

[0014] A carrier rack cooperating with the lifting seat, capable of vertically moving along the extension direction of the lifting seat to respectively dock with the conveying ends of the upper conveying rack and the lower conveying rack, and realizing the transfer of the tray between the upper conveying rack, the lower conveying rack and the carrier rack.

[0015] In some embodiments, the upper conveying rack includes an upper rack body and upper rollers respectively rotatably connected to both sides of the upper rack body, the lower conveying rack includes a lower rack body and lower rollers respectively rotatably connected to both sides of the lower rack body, and the upper rollers and the lower rollers are in line contact with the tray respectively.

[0016] In some embodiments, an upper transmission member is provided at the end of the upper roller, and a lower transmission member is provided at the end of the lower roller;

[0017] The conveying device includes:

[0018] An upper guiding member provided on the upper rack body, cooperating with the upper transmission member;

[0019] A lower guiding member provided on the lower rack body, cooperating with the lower transmission member;

[0020] A first driving member for driving the upper guiding member and the lower guiding member to move, so that the upper rollers and the lower rollers can rotate driven by the upper transmission member and the lower transmission member.

[0021] In some embodiments, the upper transmission member is an upper sprocket, the lower transmission member is a lower sprocket, the upper guiding member is an upper chain, and the lower guiding member is a lower chain; or,

[0022] The upper transmission member is an upper pulley, the lower transmission member is a lower pulley, the upper guiding member is an upper belt, and the lower guiding member is a lower belt; or,

[0023] The upper driving member is the upper driven gear, the lower driving member is the lower driven gear, the upper guiding member is the upper driving gear, and the lower guiding member is the lower driving gear.

[0024] In some embodiments, both the upper roller and the lower roller are multiple. The multiple upper rollers and the multiple lower rollers are arranged at intervals, and there is a first spacing between two adjacent upper rollers and a second spacing between two adjacent lower rollers;

[0025] Wherein, the length of the tray is greater than the first spacing and the second spacing.

[0026] In some embodiments, three adjacent upper rollers form an upper roller group, and three adjacent lower rollers form a lower roller group;

[0027] The upper rollers at both ends of the upper roller group are electric rollers, and the upper roller in the middle of the upper roller group is a non-powered roller;

[0028] The lower rollers at both ends of the lower roller group are electric rollers, and the lower roller in the middle of the lower roller group is a non-powered roller.

[0029] In some embodiments, the lifting seat includes:

[0030] A seat body with guide rails provided on both sides;

[0031] A lead screw parallel to the guide rails, arranged in the middle of the seat body;

[0032] The carrier frame includes:

[0033] A carrier body, connected to the lead screw and slidably engaged with the guide rails;

[0034] A carrier roller rotatably connected to the carrier body, and the carrier roller is in line contact with the tray;

[0035] The lifting device further includes a second driving member drivingly connected to the lead screw. Driven by the second driving member, the lead screw can drive the carrier body to move along the extension direction of the guide rails.

[0036] In some embodiments, there are multiple carrier rollers, and the carrier rollers close to the conveying end are electric rollers.

[0037] In some embodiments, an upper docking spacing is formed between the carrier roller close to the conveying end and the upper roller close to the conveying end, and a lower docking spacing is formed between the carrier roller close to the conveying end and the lower roller close to the conveying end;

[0038] The upper docking spacing is less than the first spacing, and the lower docking spacing is less than the second spacing.

[0039] In some embodiments, the automatic sampling system further includes:

[0040] A workbench with a receiving space is provided with a feeding port on the side corresponding to the conveying device, and a feeding port communicating with the receiving space on the top surface, and the feeding port corresponds to the carrier.

[0041] Due to the adoption of the above technical solution, the technical effects achieved by the present utility model are as follows:

[0042] The present utility model provides an automatic sampling system, including a tray, a conveying device and a lifting device. Among them, the conveying device includes an upper conveying rack and a lower conveying rack with opposite conveying directions, and the lifting device includes a lifting seat and a carrier. Specifically, through the vertical movement of the carrier along the lifting seat, the carrier can be respectively docked with the upper conveying rack and the lower conveying rack, so that the tray conveyed on the upper conveying rack or the lower conveying rack can be transferred to the carrier, and the tray on the carrier can also be transferred to the upper conveying rack or the lower conveying rack, thereby realizing the transfer of the tray between the carrier, the upper conveying rack and the lower conveying rack, that is, realizing the cyclic sampling function of the automatic sampling system. The automatic sampling system with such a structure not only facilitates the improvement of the sample detection and preparation efficiency, but also facilitates the improvement of the sample detection and preparation accuracy, and can adapt to the batch sample processing process, greatly meeting the batch sample detection and analysis requirements.

[0043] The above description is only an overview of the technical solutions of the embodiments of the present utility model. In order to be able to more clearly understand the technical means of the embodiments of the present utility model, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the embodiments of the present utility model more obvious and understandable, the following specifically illustrates the specific embodiments of the present utility model. Description of the Drawings

[0044] The drawings are only used to illustrate the embodiments and are not considered as a limitation to the present utility model. And throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0045] Figure 1 is a schematic structural diagram of an automatic sampling system provided by the present utility model;

[0046] Figure 2 is a schematic structural diagram of another automatic sampling system provided by the present utility model;

[0047] Figure 3 is a schematic structural diagram of still another automatic sampling system provided by the present utility model;

[0048] Figure 4 is a schematic structural diagram of yet another automatic sampling system provided by the present utility model;

[0049] Figure 5 is a top view of an automatic sampling system provided by the present utility model;

[0050] Figure 6 This is a schematic structural diagram of another automatic sampling system provided by the present utility model.

[0051] In the figure:

[0052] 100 tray, 110 sample vial;

[0053] 200 conveying device, 210 upper conveyor frame, 211 upper frame body, 212 upper rollers, 220 lower conveyor frame, 221 lower frame body, 222 lower rollers;

[0054] 300 lifting device, 310 lifting seat, 311 seat body, 312 lead screw, 320 bearing frame, 321 carrier body, 322 bearing rollers, 330 second driving member;

[0055] 400 workbench. Detailed implementation manners

[0056] Hereinafter, exemplary embodiments of the present utility model will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein.

[0057] Referring to Figures 1-6 As shown, an embodiment of the present utility model provides an automatic sampling system, including a tray 100, a conveying device 200, and a lifting device 300. Among them, the tray 100 is used to accommodate the sample vial 110. The conveying device 200 includes an upper conveyor frame 210 and a lower conveyor frame 220. The upper conveyor frame 210 has a first conveying direction for horizontally conveying the tray 100. The lower conveyor frame 220 is located below the upper conveyor frame 210, and the lower conveyor frame 220 has a second conveying direction for horizontally conveying the tray 100. The first conveying direction is opposite to the second conveying direction. In addition, the lifting device 300 includes a lifting seat 310 and a bearing frame 320. The lifting seat 310 is located on the same side of the upper conveyor frame 210 and the lower conveyor frame 220. The bearing frame 320 is matched with the lifting seat 310, and the bearing frame 320 can move vertically along the extending direction of the lifting seat 310 to respectively dock with the conveying ends of the upper conveyor frame 210 and the lower conveyor frame 220, and realize the transfer of the tray 100 between the upper conveyor frame 210, the lower conveyor frame 220, and the bearing frame 320.

[0058] It should be noted that the sample vial 110 in this application can contain the collected samples or the solutions for preparing reagents, and the types of samples or solutions contained in different sample vials 110 can be the same or different. For example, when batch testing and analyzing the samples collected from the same area (such as Lake A), the samples in each sample vial 110 can all be the samples of Lake A; or, when batch preparing the same type of reagent (such as 25% sulfuric acid reagent), the solutions in each sample vial 110 can all be sulfuric acid solutions; when batch testing and analyzing the samples collected from different areas, the samples in each sample vial 110 can come from different areas such as Lake A, River B, and Community C respectively; or, when batch preparing different types of reagents, the solutions in each sample vial 110 can be various different types such as sulfuric acid solution, hydrochloric acid solution, methanol solution, and ethanol solution.

[0059] In addition, when the tray 100 is circularly sampled through the upper conveyor 210, the lower conveyor 220, and the carrier 320, the circular direction of the tray 100 can be clockwise or counterclockwise. When the circular direction of the tray 100 is clockwise, the first conveying direction of the upper conveyor 210 is horizontally to the right, and the second conveying direction of the lower conveyor 220 is horizontally to the left; when the circular direction of the tray 100 is counterclockwise, the first conveying direction of the upper conveyor 210 is horizontally to the left, and the second conveying direction of the lower conveyor 220 is horizontally to the right; this application does not limit the specific orientations of the first conveying direction and the second conveying direction, as long as they are opposite to each other.

[0060] It can be understood that when the carrier 320 moves vertically along the extending direction of the lifting seat 310, the carrier 320 has two key positions, one of which is the position corresponding to the upper conveyor 210, and the other is the position corresponding to the lower conveyor 220. In addition, since the carrier 320 is located on the same side of the upper conveyor 210 and the lower conveyor 220, the conveying ends of the upper conveyor 210 and the lower conveyor 220 are both the ends close to the carrier 320, and when the carrier 320 is in the above two positions, it can be respectively docked with the conveying ends of the upper conveyor 210 and the lower conveyor 220.

[0061] In order to more clearly understand the process of circular sampling of the tray 100, the following will illustrate this process with an example in combination with the structures of the automatic sampling system:

[0062] In this example, the lifting device 300 is located on the right side of the conveying device 200, and the automatic sampling system performs sampling in a counterclockwise cycle. First, the tray 100 on the lower conveyor rack 220 moves horizontally to the right along the first conveying direction under the drive of the lower conveyor rack 220. At the same time, the carrier rack 320 moves downward along the lifting seat 310 to a position corresponding to the conveying end of the lower conveyor rack 220, and then the tray 100 on the lower conveyor rack 220 is transferred to the carrier rack 320. Subsequently, the carrier rack 320 moves upward along the lifting seat 310 to a position corresponding to the conveying end of the upper conveyor rack 210, and the tray 100 is then transferred to the upper conveyor rack 210 under the drive of the carrier rack 320. Finally, the tray 100 can move horizontally to the left along the second conveying direction under the drive of the upper conveyor rack 210, thus realizing the cyclic transfer of the tray 100 among the upper conveyor rack 210, the lower conveyor rack 220, and the carrier rack 320, that is, realizing the cyclic sampling function.

[0063] It should also be noted that, in order to further ensure that the tray 100 can flow better among the upper conveyor rack 210, the lower conveyor rack 220, and the carrier rack 320. For the counterclockwise cyclic sampling method, the position of the carrier rack 320 can be slightly lower than that of the lower conveyor rack 220 and slightly higher than that of the upper conveyor rack 210; for the clockwise cyclic sampling method, the position of the carrier rack 320 can be slightly lower than that of the upper conveyor rack 210 and slightly higher than that of the lower conveyor rack 220. By setting the height difference among the upper conveyor rack 210, the lower conveyor rack 220, and the carrier rack 320, the tray 100 can be transferred among the three more easily by virtue of its own gravity.

[0064] The automatic sampling system provided by this application enables the carrier rack 320 to be respectively docked with the upper conveyor rack 210 and the lower conveyor rack 220 through the vertical movement of the carrier rack 320 along the lifting seat 310, so that the tray 100 conveyed on the upper conveyor rack 210 or the lower conveyor rack 220 can be transferred to the carrier rack 320, and the tray 100 on the carrier rack 320 can also be transferred to the upper conveyor rack 210 or the lower conveyor rack 220, thus realizing the transfer of the tray 100 among the carrier rack 320, the upper conveyor rack 210, and the lower conveyor rack 220, that is, realizing the cyclic sampling function of the automatic sampling system. The automatic sampling system with such a structure not only facilitates the improvement of the sample detection and preparation efficiency, but also facilitates the improvement of the sample detection and preparation accuracy, and can adapt to the batch sample processing process, greatly meeting the needs of batch sample detection and analysis.

[0065] In some embodiments, referring to Figure 4As shown, the upper conveyor rack 210 includes an upper rack body 211 and upper rollers 212 rotatably connected to both sides of the upper rack body 211 respectively. The lower conveyor rack 220 includes a lower rack body 221 and lower rollers 222 rotatably connected to both sides of the lower rack body 221 respectively. The upper rollers 212 and the lower rollers 222 are in line contact with the tray 100 respectively.

[0066] Through the line contact between the upper rollers 212 and the lower rollers 222 and the tray 100, the frictional force among the upper rollers 212, the lower rollers 222 and the tray 100 is more concentrated, thus facilitating the movement and transfer of the tray 100 on the upper conveyor rack 210 and the lower conveyor rack 220.

[0067] It can be understood that the transfer mode of the tray 100 on the upper conveyor rack 210 and the lower conveyor rack 220 can be driven not only by the line contact method, but also by the surface contact method. That is to say, in addition to the above roller structure, the upper conveyor rack 210 and the lower conveyor rack 220 can also be a conveyor belt structure. The present application does not limit the driving mode of the upper conveyor rack 210 and the lower conveyor rack 220 for the tray 100.

[0068] In some embodiments, when the upper conveyor rack 210 and the lower conveyor rack 220 are roller drive structures, an upper transmission member (not shown in the figure) may be provided at the end of the upper roller 212, and a lower transmission member (not shown in the figure) may be provided at the end of the lower roller 222. In addition, the conveying device 200 may further include an upper guide member (not shown in the figure), a lower guide member (not shown in the figure) and a first driving member (not shown in the figure). The upper guide member is disposed on the upper rack body 211 and cooperates with the upper transmission member; the lower guide member is disposed on the lower rack body 221 and cooperates with the lower transmission member; the first driving member is used to drive the upper guide member and the lower guide member to move, so that the upper roller 212 and the lower roller 222 can rotate under the drive of the upper transmission member and the lower transmission member.

[0069] Regarding the drive structures of the upper roller 212 and the lower roller 222, the present application can have various different implementation manners:

[0070] In one implementation manner, the upper transmission member is an upper sprocket, the lower transmission member is a lower sprocket, the upper guide member is an upper chain, and the lower guide member is a lower chain.

[0071] In this embodiment, the driving of the upper roller 212 and the lower roller 222 is achieved through the transmission cooperation between the chain and the sprocket. Specifically, for the upper conveyor frame 210, there are multiple upper rollers 212, and the multiple upper rollers 212 are arranged side by side at intervals along the length direction of the upper frame body 211. Moreover, upper sprockets can be provided at the ends of the multiple upper rollers 212, and the upper chain is fixed on the side wall of the upper frame body 211, and all the multiple upper sprockets can cooperate with the upper chain. The first driving member can be a driving motor, and the driving motor can be arranged at the conveying end of the upper conveyor frame 210 or at the output end opposite to the conveying end. In addition, a sprocket that cooperates with the upper chain is also provided on the output shaft of the driving motor. By the rotation of the sprocket on the output shaft of the driving motor, the upper chain is driven to rotate, thereby driving the upper sprockets to rotate, and further realizing the rotation of the upper roller 212, and finally realizing the driving of the upper conveyor frame 210 for the tray 100. In addition, in addition to being able to be provided at the ends of all the upper rollers 212, the upper sprockets can also be provided only at the ends of the upper rollers 212 close to the conveying end and the output end of the upper conveyor frame 210. This application does not limit the number and arrangement method of the upper driving members.

[0072] Since the driving method of the lower conveyor frame 220 for the tray 100 is basically the same as that of the upper conveyor frame 210, the relevant structures of the lower conveyor frame 220 will not be elaborated here too much.

[0073] In another embodiment, the upper driving member is an upper pulley, the lower driving member is a lower pulley, the upper guiding member is an upper belt, and the lower guiding member is a lower belt.

[0074] In this embodiment, the driving of the upper roller 212 and the lower roller 222 is achieved through the transmission cooperation between the pulley and the belt. Regarding the specific setting method of the pulley and the belt, reference can be made to the description of the sprocket and the chain in the above embodiment. Since the two only differ in the types of the driving member and the guiding member and are similar in terms of working principle, the number of component configurations, and the configuration positions, etc., no further elaboration will be made here.

[0075] In still another embodiment, the upper driving member is an upper driven gear, the lower driving member is a lower driven gear, the upper guiding member is an upper driving gear, and the lower guiding member is a lower driving gear.

[0076] In this embodiment, the driving of the upper roller 212 and the lower roller 222 is achieved through the transmission cooperation between the driving gear and the driven gear. Regarding the specific setting method of the driving gear and the driven gear, reference can be made to the description of the sprocket and the chain in the above embodiment. Since the two only differ in the types of the driving member and the guiding member and are similar in terms of working principle, the number of component configurations, and the configuration positions, etc., no further elaboration will be made here.

[0077] In some embodiments, referring toFigure 4 and Figure 5 As shown in Figure 5 , there are multiple upper rollers 212 and multiple lower rollers 222. The multiple upper rollers 212 and the multiple lower rollers 222 are arranged at intervals. There is a first spacing (not marked in the figure) between two adjacent upper rollers 212, and a second spacing (not marked in the figure) between two adjacent lower rollers 222. Among them, the length of the tray 100 is greater than the first spacing and the second spacing.

[0078] By configuring the specific dimensions of the first spacing and the second spacing, the length of the tray 100 is greater than the first spacing and the second spacing, which is beneficial to ensuring the stable movement of the tray 100 on the upper conveyor frame 210 and the lower conveyor frame 220.

[0079] Moreover, to further improve the stability of the tray 100 running on the upper conveyor frame 210 and the lower conveyor frame 220, preferably, three adjacent upper rollers 212 are configured to form an upper roller group, and three adjacent lower rollers 222 are configured to form a lower roller group. The size of the tray 100 respectively matches the size of the upper roller group and the lower roller group. In other words, an upper roller group or a lower roller group can integrally support a tray 100. Among them, two upper rollers 212 or lower rollers 222 located at both ends of any upper roller group or any lower roller group are respectively used to correspondingly support both side parts of the bottom wall of the tray 100, and one upper roller 212 or lower roller 222 located in the middle of any upper roller group or any lower roller group is used to correspondingly support the middle part of the bottom wall of the tray 100. Further, to facilitate the transfer of the tray 100 between adjacent upper roller groups or adjacent lower roller groups, the length of the tray 100 can also be configured to be slightly greater than the length of the upper roller group or the lower roller group to achieve a smooth transition of the tray 100 between adjacent upper roller groups or adjacent lower roller groups.

[0080] In addition, it should be noted that for the driving method of the upper rollers 212 and the lower rollers 222 in this application, in addition to the above-mentioned method of cooperation between the transmission part and the guiding part (external drive), an internal drive method can also be adopted. Specifically, based on the upper roller group and the lower roller group configured in the upper conveyor frame 210 and the lower conveyor frame 220, the upper rollers 212 at both ends of the upper roller group are configured as electric rollers, and the upper rollers 212 in the middle of the upper roller group are configured as non-powered rollers; the lower rollers 222 at both ends of the lower roller group are configured as electric rollers, and the lower rollers 222 in the middle of the lower roller group are configured as non-powered rollers.

[0081] Among them, the electric roller is a driving device that combines a motor and a reducer inside the roller body. Through the combined use of the electric roller and the non-powered roller, the upper roller group and the lower roller group drive the tray 100. Compared with the above-mentioned external drive method, this internal drive structure has many advantages such as compact structure, high transmission efficiency, low noise, long service life, stable operation, reliable work, good sealing, small occupied space, and convenient installation.

[0082] In some embodiments, referring to Figure 4 As shown, the lifting seat 310 includes a seat body 311 and a lead screw 312. Guide rails are provided on both sides of the seat body 311. The lead screw 312 is parallel to the guide rails and is disposed in the middle of the seat body 311. The carrier frame 320 includes a carrier body 321 and carrier rollers 322. The carrier body 321 is connected to the lead screw 312 and is in sliding fit with the guide rails. The carrier rollers 322 are rotatably connected to the carrier body 321, and the carrier rollers 322 are in line contact with the tray 100. In addition, the lifting device 300 further includes a second driving member 330 that is in transmission connection with the lead screw 312. Driven by the second driving member 330, the lead screw 312 can drive the carrier body 321 to move along the extending direction of the guide rails.

[0083] Among them, the connection between the carrier body 321 and the lead screw 312 can be realized through the cooperation between a nut (not marked in the figure) provided on the carrier body 321 and the lead screw 312. And the sliding fit between the carrier body 321 and the guide rails can be realized through the cooperation between a slider (not marked in the figure) provided on the carrier body 321 and the guide rails.

[0084] In addition, in order to enable the tray 100 on the carrier frame 320 to be smoothly transferred to the upper conveyor frame 210 or the lower conveyor frame 220, the carrier rollers 322 can be driven by means of the sprocket-chain cooperation or the pulley-belt cooperation as described above, or a plurality of carrier rollers 322 can be configured, and the carrier rollers 322 close to the conveying end can be configured as electric rollers.

[0085] In some other embodiments, an upper docking distance (not marked in the figure) is formed between the carrier rollers 322 close to the conveying end and the upper rollers 212 close to the conveying end, and a lower docking distance (not marked in the figure) is formed between the carrier rollers 322 close to the conveying end and the lower rollers 222 close to the conveying end. And the upper docking distance is less than the first distance, and the lower docking distance is less than the second distance.

[0086] By configuring the upper docking distance to be less than the first distance and the lower docking distance to be less than the second distance, the transfer process of the tray 100 between the carrier frame 320, the upper conveyor frame 210 and the lower conveyor frame 220 becomes more stable, and it can be avoided to the greatest extent that the tray 100 falls from the gap between the carrier frame 320 and the upper conveyor frame 210 and between the carrier frame 320 and the lower conveyor frame 220 during the transition between the carrier frame 320 and the upper conveyor frame 210 and during the transition between the carrier frame 320 and the lower conveyor frame 220, thereby facilitating the improvement of the stability of the movement process of the tray 100.

[0087] In some embodiments, referring to Figure 6As shown, the automatic sampling system further includes a workbench 400 having a receiving space, with a feeding port (not marked in the figure) corresponding to the conveying device 200 opened on its side surface, and a feeding port (not marked in the figure) communicating with the receiving space opened on its top surface, and the feeding port corresponds to the carrier 320. Among them, the surface of the upper conveying frame 210 is flush with the tabletop, the lower conveying frame 220 is arranged corresponding to the receiving space, and the arrangement of the workbench 400 facilitates the user to operate on the samples.

[0088] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. Similarly, in order to streamline the present invention and help understand one or more of the various aspects of the present invention, in the above description of the exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Among them, the claims following the specific implementation manners are hereby expressly incorporated into the specific implementation manners, and each claim itself is regarded as a separate embodiment of the present invention.

[0089] It should be noted that the above embodiments illustrate rather than limit the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In the unit claims listing several devices, several of these devices can be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be construed as limiting the order of execution.

Claims

1. An automatic sampling system, characterized in that: include: Tray for placing sample bottles; Conveying device, including An upper conveying frame has a first conveying direction for horizontally conveying the tray; A lower conveying rack located below the upper conveying rack has a second conveying direction for horizontally conveying the tray, wherein the first conveying direction is opposite to the second conveying direction; Lifting device, including A lifting seat, located on the same side of the upper conveying rack and the lower conveying rack; The support frame matched with the lifting seat can move vertically along the extension direction of the lifting seat to dock with the conveying ends of the upper conveying frame and the lower conveying frame respectively, and realize the transfer of the pallet between the upper conveying frame, the lower conveying frame and the support frame.

2. The automatic sampling system according to claim 1, characterized in that: The upper conveying frame includes an upper frame body and upper rollers rotatably connected to both sides of the upper frame body, and the lower conveying frame includes a lower frame body and lower rollers rotatably connected to both sides of the lower frame body, and the upper rollers and the lower rollers are in line contact with the pallets respectively.

3. The automatic sampling system according to claim 2, characterized in that: An upper transmission member is disposed at the end of the upper roller, and a lower transmission member is disposed at the end of the lower roller; The conveying device comprises: An upper guide member disposed on the upper frame body and matched with the upper transmission member; A lower guide member disposed on the lower frame body and matched with the lower transmission member; The first driving member is used to drive the upper guide member and the lower guide member to move, so that the upper roller and the lower roller can rotate under the drive of the upper transmission member and the lower transmission member.

4. The automatic sampling system according to claim 3, characterized in that: The upper transmission member is an upper sprocket, the lower transmission member is a lower sprocket, the upper guide member is an upper chain, and the lower guide member is a lower chain; or, The upper transmission member is an upper pulley, the lower transmission member is a lower pulley, the upper guide member is an upper belt, and the lower guide member is a lower belt; or, The upper transmission member is an upper driven gear, the lower transmission member is a lower driven gear, the upper guide member is an upper driving gear, and the lower guide member is a lower driving gear.

5. The automatic sampling system according to claim 2, characterized in that: There are multiple upper rollers and multiple lower rollers, and the multiple upper rollers and the multiple lower rollers are arranged at intervals, and there is a first interval between two adjacent upper rollers, and there is a second interval between two adjacent lower rollers; Wherein, the length of the tray is greater than the first spacing and the second spacing.

6. The automatic sampling system according to claim 5, characterized in that: Three adjacent upper rollers form an upper roller group, and three adjacent lower rollers form a lower roller group; The upper rollers at both ends of the upper roller group are electric rollers, and the upper roller in the middle of the upper roller group is an unpowered roller; The lower rollers at both ends of the lower roller group are electric rollers, and the lower roller in the middle of the lower roller group is an unpowered roller.

7. The automatic sampling system according to claim 5, characterized in that: The lifting seat comprises: The seat body has guide rails on both sides; A lead screw parallel to the guide rail is disposed in the middle of the seat body; The carrier frame comprises: A bearing body connected to the lead screw and slidably matched with the guide rail; A bearing roller rotatably connected to the bearing body, wherein the bearing roller is in line contact with the tray; The lifting device also includes a second driving member that is transmission-connected to the lead screw. Driven by the second driving member, the lead screw can drive the carrier to move along the extension direction of the guide rail.

8. The automatic sampling system according to claim 7, characterized in that: There are multiple load-bearing rollers, and the load-bearing roller close to the conveying end is an electric roller.

9. The automatic sampling system according to claim 8, characterized in that: An upper butt joint spacing is formed between the bearing roller near the conveying end and the upper roller near the conveying end, and a lower butt joint spacing is formed between the bearing roller near the conveying end and the lower roller near the conveying end; The upper butt joint spacing is smaller than the first spacing, and the lower butt joint spacing is smaller than the second spacing.

10. The automatic sampling system according to claim 1, characterized in that: The automatic sampling system also includes: A workbench with an accommodating space has a side surface provided with a feed port corresponding to the conveying device, a top surface provided with a feed port connected to the accommodating space, and the feed port corresponds to the supporting frame.

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