Reaction cup loading device

Abstract

The utility model provides a reaction cup loading device which comprises a stock bin used for containing a reaction cup; the loading chute is used for sequentially arranging and transferring the reaction cups from the stock bin; the cup body guide channel is used for receiving the single reaction cup falling from the output port of the loading chute and guiding the received reaction cup to move to the reaction cup buffer unit; and the cup separating mechanism is used for separating overlapped cup lugs of the first reaction cup and the second reaction cup which are adjacent to each other at the output port of the loading chute, so that the first reaction cup can fall into the cup body guide channel. According to the utility model, the cup lugs which are adjacent to the output port of the loading chute and are overlapped with the first reaction cup and the second reaction cup are separated through the cup separating mechanism, so that the first reaction cup is separated from the second reaction cup, the first reaction cup can smoothly fall into the cup body guide channel, the problem of cup clamping is avoided, and the production efficiency is improved. And the equipment maintenance and inspection cost and manpower after cup clamping are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of in vitro diagnosis, in particular to a reaction cup loading device. Background Art

[0002] In sample analyzers in the field of in vitro diagnostics, disposable reaction cups are used as the reaction site for reagents and samples to form a reaction solution, and then the disposable reaction cup containing the reaction solution is mixed and incubated. Finally, the disposable reaction cup is placed on the detection unit and tested by coagulation method, immunoturbidimetry, chromogenic substrate method or chemiluminescence immunoassay.

[0003] In order to improve the test throughput and reduce user operations, a reaction cup loading device is generally provided inside the sample analyzer, and the reaction cup loading device is used to load the batch of scattered reaction cups neatly and orderly to the next station in the sample analyzer, such as the reaction cup buffer unit. The reaction cup loading device generally includes a silo, a lifting mechanism and a loading chute. The reaction cups in the silo are lifted to the top of the silo by the lifting mechanism, and are transferred to the cup drop channel through the loading chute, and then dropped to the next station from the cup drop channel. However, during the operation of the reaction cup loading device, it is more common for the cup ears of adjacent reaction cups arranged in the loading chute to overlap each other. For example, the cup ear of the first reaction cup located at the outlet end of the loading chute is located above the cup ear of the second reaction cup. This will cause the first reaction cup to fail to fall smoothly into the cup drop channel, and the reaction cup cannot enter the next station, which is prone to cup jamming. Utility Model Content

[0004] Based on this, it is necessary to provide a reaction cup loading device to address the above technical issues.

[0005] A reaction cup loading device, comprising:

[0006] A silo is used to hold a reaction cup, wherein the reaction cup comprises a cup body and cup ears arranged on the periphery of the cup body;

[0007] A loading chute, used for sequentially arranging and transporting the reaction cups from the silo;

[0008] A cup body guiding channel, used for receiving a single reaction cup dropped from the output port of the loading chute, and guiding the received reaction cup to move to the reaction cup buffer unit;

[0009] The cup separation mechanism is used to separate the overlapping cup ears of the first reaction cup and the second reaction cup adjacent to the output port of the loading chute, so that the first reaction cup can fall into the cup body guide channel.

[0010] In one embodiment, the cup separation mechanism is used to drive the second reaction cup to move away from the first reaction cup in a direction opposite to the conveying direction of the loading chute, so as to separate the overlapping cup ears between the first reaction cup and the second reaction cup.

[0011] In one embodiment, the reaction cup loading device also includes a cup pushing mechanism, which includes a pushing block and a first driving component, the pushing block includes a cup body blocking part and a cup body guiding part, the cup body guiding channel is arranged in the cup body guiding part, the cup body blocking part is used to block the reaction cup at the output port of the loading chute, and the first driving component is used to drive the pushing block to move along the width direction of the loading chute to transport the reaction cup in the cup body guiding channel to the reaction cup buffer unit.

[0012] In one embodiment, the cup separation mechanism includes a separation block and a second driving component, the second driving component is used to drive the separation block to be inserted between the first reaction cup and the second reaction cup at the output port of the loading chute along the width direction of the loading chute, and the second driving component and the first driving component have the same structure.

[0013] In one embodiment, the separation block is fixedly connected to one end of the push block. When the push block transports the current reaction cup, the separation block moves with the push block and is inserted between the first reaction cup and the second reaction cup blocked by the cup body blocking part of the push block at the output port of the loading chute.

[0014] In one embodiment, the cup pushing mechanism includes a first sensing component, which is used to perform inverted / upright detection on the reaction cup to be loaded at the output port of the loading chute; the first driving component is used to drive the push block to move in a first direction to transport the identified upright reaction cup to the reaction cup cache unit; or to drive the push block to move in a second direction opposite to the first direction to transport the identified inverted reaction cup to the reaction cup recovery unit.

[0015] In one embodiment, there are two separation blocks, which are fixedly connected to the two ends of the push block respectively; during the process of the push block transporting the upright reaction cup or the inverted reaction cup, any one of the two separation blocks is inserted between the first reaction cup and the second reaction cup at the output port of the loading chute and is blocked by the cup body blocking part of the push block.

[0016] In one embodiment, the separation block includes a separation portion that contacts and acts on the reaction cup, and the width of the separation portion gradually increases from a first end close to the loading chute to a second end away from the loading chute, so that the separation portion can separate the overlapping cup ears of the two reaction cups during the process of inserting the first reaction cup and the second reaction cup into the output port of the loading chute.

[0017] In one embodiment, the minimum value of the width of the second end of the separation portion is greater than twice the width of the ear of the reaction cup.

[0018] In one embodiment, the minimum distance between the first end of the separation portion and the side of the push block close to each other is greater than the outer diameter of a reaction cup and less than 1.5 times the sum of the outer diameter of the reaction cup and the width of the cup ear.

[0019] In one embodiment, the separation portion includes a first separation portion, the upper surface of the first separation portion is lower than the cup mouths of the two reaction cups to be separated at the output port of the loading chute, and the lower surface of the first separation portion is higher than the cup ears of the two reaction cups to be separated.

[0020] In one embodiment, the separation block further includes a second separation portion, the upper surface of the second separation portion is lower than the cup ears of the two reaction cups to be separated, and the lower surface of the second separation portion is higher than the bottoms of the two reaction cups to be separated.

[0021] In one of the embodiments, two supporting surfaces inclined toward the inside of the loading chute are provided on both sides in the length direction of the loading chute, the two supporting surfaces are used to support the cup ears of the reaction cup, and the vertical height of the supporting surfaces is greater than the outer diameter of a reaction cup; and an avoidance groove for the first separation part to pass through is provided on the surface of the supporting surface.

[0022] In one embodiment, a through hole is formed on the side wall of the loading chute for the second separation portion to pass through.

[0023] In one embodiment, the first driving assembly includes a driver, and a gear and a rack meshing with each other, the driver is drivingly connected to the gear, and the rack is connected to the push block.

[0024] In one of the embodiments, the loading chute is gradually inclined downward from the input port to the output port, so that the reaction cup on the loading chute can slide under the action of gravity and fall from the output port of the loading chute; two supporting surfaces inclined toward the inside of the loading chute are provided on both sides of the length direction of the loading chute, and the two supporting surfaces are used to support the cup ears of the reaction cup and guide the reaction cup to slide.

[0025] In one of the embodiments, two extensions are provided at the output port of the loading chute on both sides along the conveying direction thereof, the two extensions are arranged beyond the bottom end of the loading chute, and the two supporting surfaces extend to the two extensions respectively; the two extensions are located on both sides of the cup body guide channel, and in the length direction of the loading chute, the distance S between the side of the cup body guide channel away from the loading chute and the extensions satisfies d / 2<S<d, where d is the outer diameter of the reaction cup.

[0026] The reaction cup loading device described above separates the cup ears that overlap with the first reaction cup and the second reaction cup and are located adjacent to the output port of the loading chute through the cup separation mechanism, so that the cup ears of the first reaction cup no longer overlap with the cup ears of the second reaction cup, thereby preventing the cup ears of the second reaction cup from affecting the smooth falling of the first reaction cup into the cup body guide channel, avoiding instrument failure caused by cup jamming, reducing the instrument failure rate, ensuring the normal operation of the sample analyzer, and reducing the equipment maintenance and inspection costs and manpower after cup jamming occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a reaction cup in one embodiment;

[0028] Figure 2 is an overall schematic diagram of a reaction cup loading device in one embodiment;

[0029] Figure 3 is a schematic structural diagram of a reaction cup loading device in one embodiment;

[0030] Figure 4 A schematic diagram of the coordination relationship between the cup pushing mechanism and the cup separating mechanism in one embodiment;

[0031] Figure 5 It is a schematic diagram of the structure of a push block in one embodiment;

[0032] Figure 6 It is a schematic diagram of the structure of a loading chute and a part of a cup pushing mechanism in one embodiment;

[0033] Figure 7 A schematic diagram of the structure of a separation block in an embodiment;

[0034] Figure 8 A schematic structural diagram of a separation block in one embodiment;

[0035] Fig. 9 It is a structural schematic diagram of a cup-dropping slide in one embodiment;

[0036] Fig.10 A schematic diagram of the relationship between the cup body guide channel and the loading chute in one embodiment;

[0037] Fig.11 A schematic diagram showing that the cup ears of the first reaction cup and the second reaction cup on the loading chute overlap each other;

[0038] Fig.12 Schematic diagram of the inverted reaction cup holder.

[0039] Description of reference numerals: 10, reaction cup loading device; 100, material bin; 200, loading chute; 300, cup pushing mechanism; 400, cup separating mechanism; 500, reaction cup; 600, reaction cup buffer unit; 201, input port; 202, output port; 210, support surface; 211, avoidance groove; 212, through hole; 220, extension portion; 230, position to be loaded; 310, push block; 320, first driving component; 330, first sensing component; 340, cup dropping slide; 350, second cup dropping channel; 311, cup body guiding channel; 312, reaction cup placement The cup body has a hole for placing the cup body; 313, a cup body blocking part; 314, a cup body guiding part; 321, a driver; 322, a gear; 323, a rack; 341, a first cup dropping hole; 342, a second cup dropping hole; 343, a movement channel; 410, a separation block; 420, a mounting block; 411, a separation part; 411a, a first end; 411b, a second end; 412, a connecting part; 4111, a first separation part; 4112, a second separation part; D, a width of the second end; 510, a cup body; 520, a cup ear; S, a distance between a side of the cup body guiding channel away from the loading chute and the extension part. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] In this embodiment, refer to Figures 2 to 10 As shown, a reaction cup loading device 10 is provided, wherein, referring to Figure 2 As shown, the reaction cup loading device 10 comprises:

[0042] The silo 100 is used to hold a reaction cup 500, wherein the reaction cup 500 includes a cup body and cup ears arranged on the periphery of the cup body;

[0043] The loading chute 200 is used to sequentially arrange and transfer the reaction cups 500 from the silo 100;

[0044] The cup body guiding channel is used to receive a single cuvette 500 dropped from the output port of the loading chute 200 and guide the received cuvette 500 to move to the cuvette buffer unit 600;

[0045] The cup separation mechanism 400 is used to separate the overlapping cup ears of the first reaction cup and the second reaction cup adjacent to the output port of the loading chute 200, so that the first reaction cup can fall into the cup body guiding channel.

[0046] In this embodiment, the first reaction cup is the first reaction cup located on the loading chute 200 and closest to the output port, that is, the reaction cup located at the to-be-loaded position 230 at the output port of the loading chute 200; the second reaction cup is the reaction cup located on the loading chute 200, the second closest to the output port and adjacent to the first reaction cup, that is, the reaction cup located at the adjacent position behind the to-be-loaded position 230 at the output port of the loading chute 200. It should be understood that the cup ears of the first reaction cup and the second reaction cup overlap each other, that is, the cup ears of the first reaction cup overlap on the cup ears of the second reaction cup, or the cup ears of the second reaction cup overlap on the cup ears of the first reaction cup. Fig.11 As shown, the cup ear of the first reaction cup is overlapped on the cup ear of the second reaction cup. If the cup ear of the first reaction cup at the output port of the loading chute 200 is overlapped on the cup ear of the second reaction cup, the first reaction cup cannot be smoothly dropped into the cup body guide channel due to the support of the cup ear of the second reaction cup, resulting in cup jam.

[0047] In this embodiment, the cup separation mechanism 400 is set up to separate the overlapping cup ears of the first reaction cup and the second reaction cup adjacent to the output port of the loading chute 200, so that the cup ear of the first reaction cup no longer overlaps the cup ear of the second reaction cup, thereby preventing the cup ear of the second reaction cup from affecting the smooth falling of the first reaction cup into the cup body guide channel, avoiding cup jamming and causing instrument failure, reducing the instrument failure rate, ensuring the normal operation of the sample analyzer, and reducing the equipment maintenance inspection cost and labor cost after the cup jam occurs.

[0048] The cuvette loading device is a device for supplying disordered cuvettes to the instrument in an orderly manner. In this embodiment, the cuvette loading device includes a hopper 100, a loading chute 200, a cuvette guiding channel and a cuvette dispensing mechanism 400. Figure 1 As shown, the reaction cup 500 includes a cup body 510 and a cup ear 520 arranged on the outer periphery of the cup body 510, wherein the cup ear 520 is an annular flange structure, the cup ear 520 is close to the cup mouth of the reaction cup 500, and the bottom end of the reaction cup 500 is heavier, wherein the outer diameter of the reaction cup 500 is the outer diameter of the cup ear.

[0049] The silo 100 is used to hold reaction cups. A lifting mechanism extending from the bottom of the silo 100 to the top may be provided in the silo 100. The top of the lifting mechanism is docked with the loading chute 200. The lifting mechanism is used to lift the reaction cups from the bottom of the silo 100 to the top, and transport them in sequence through the loading chute 200.

[0050] The loading chute 200 is used to adjust the direction of the lifted cuvettes and transport them in sequence. The output port of the loading chute 200 is connected to the cuvette guide channel, and the cuvettes fall into the cuvette buffer unit 600 through the cuvette guide channel.

[0051] In one embodiment, the cup separation mechanism 400 is used to drive the second reaction cup to move away from the first reaction cup in a direction opposite to the conveying direction of the loading chute 200 to separate the overlapping cup ears between the first reaction cup and the second reaction cup.

[0052] In this embodiment, the cup separation mechanism 400 drives the second reaction cup to move in a direction opposite to the conveying direction of the loading chute 200, so that the second reaction cup moves away from the first reaction cup, and the cup ear of the second reaction cup is moved out from under the cup ear of the first reaction cup, so as to prevent the cup ear of the second reaction cup from affecting the first reaction cup from falling smoothly into the cup body guide channel, so that the first reaction cup can fall smoothly into the cup body guide channel.

[0053] In one embodiment, the cup separation mechanism 400 is used to drive the first reaction cup to move away from the second reaction cup along the conveying direction of the loading chute 200 to separate the cup ears overlapping each other between the first reaction cup and the second reaction cup. In this embodiment, the cup separation mechanism 400 can also drive the first reaction cup away from the second reaction cup to achieve the purpose of separating the cup ears of the first reaction cup and the cup ears of the second reaction cup that overlap each other.

[0054] In some other embodiments, the cup separation mechanism 400 is used to drive the first reaction cup and the second reaction cup to move in opposite directions along the length direction of the loading chute 200 to separate the overlapping cup ears between the first reaction cup and the second reaction cup.

[0055] In one embodiment, the cup separation mechanism is a manipulator, which is used to position the second reaction cup on the loading chute 200 and to move the second reaction cup in a direction opposite to the conveying direction of the loading chute 200, so as to separate the overlapping cup ears between the first reaction cup and the second reaction cup. It is worth mentioning that the manipulator can use different methods in the above embodiments to drive the first reaction cup and / or the second reaction cup to move respectively, so as to separate the overlapping cup ears between the first reaction cup and the second reaction cup, which is not described in detail in this embodiment.

[0056] In one embodiment, see Figures 2 to 5As shown, the reaction cup loading device 10 also includes a cup pushing mechanism 300, which includes a pushing block 310 and a first driving component 320. The pushing block 310 includes a cup body blocking portion 313 and a cup body guiding portion 314. The cup body guiding channel 311 is arranged on the cup body guiding portion 314. The first driving component 320 is used to drive the pushing block 310 to move along the width direction of the loading slide 200 to transport the reaction cup 500 in the cup body guiding channel 311 to the reaction cup buffer unit 600.

[0057] See also Figure 5 As shown, the push block 310 includes a cup body blocking portion 313 and a cup body guiding portion 314, and the cup body blocking portion 313 and the cup body guiding portion 314 are arranged in parallel along a length direction perpendicular to the loading chute 200, and the cup body blocking portion 313 is used to block the reaction cup located at the output port of the loading chute 200, and the cup body guiding portion 314 is provided with the cup body guiding channel 311, and the first driving component 320 is used to drive the push block 310 to move along the width direction of the loading chute 200 to transport the reaction cup 500 in the cup body guiding channel 311 to the reaction cup buffer unit 600. Among them, the push block 310 moves under the drive of the first driving component 320. Through the movement of the push block 310, the cup body blocking part 313 or the cup body guiding part 314 of the push block 310 can be docked with the output port of the loading chute 200, and the reaction cup located at the output port of the loading chute 200 can be correspondingly blocked by the cup body blocking part 313, or enter the cup body guiding channel 311 in the cup body guiding part 314.

[0058] Furthermore, the cup body guiding channel 311 is semi-open, that is, the front of the cup body guiding channel 311 is not closed, forming a gap for a single reaction cup located at the output port of the loading chute 200 to enter the cup body guiding channel 311 .

[0059] See also Fig. 9 As shown, the cup-pushing mechanism 300 also includes a fixed cup-dropping slide 340, on which a first cup-dropping hole 341 and a second cup-dropping hole 342 are provided, wherein the first cup-dropping hole 341 is connected to the reaction cup buffer unit 600, and the second cup-dropping hole 342 is connected to the reaction cup recovery unit; a docking position is provided on the cup-dropping slide 340, at which the cup body guide channel 311 of the cup body guide portion 314 docks with the output port of the loading slide 200. In this embodiment, the cup-dropping slide 340 is fixedly arranged at the output port of the loading slide 200. The pushing block 310 can be slidably arranged on the cup-dropping slide 340 through a slide rail slider assembly.

[0060] In one embodiment, continue to refer to Fig. 9As shown, a motion channel 343 is formed on the cup-dropping slide 340 to provide a motion path for the push block 310. The motion channel 343 has a channel bottom wall, and a first cup-dropping hole 341 and a second cup-dropping hole 342 are arranged on the channel bottom wall. The first cup-dropping hole 341 is connected to the reaction cup buffer unit 600, and the second cup-dropping hole 342 is connected to the reaction cup recovery unit. The motion channel 343 is provided with a first limit state position along a first direction, and the first cup-dropping hole 341 is located at the first limit state position. The motion channel 343 is provided with a second limit state position along a second direction opposite to the first direction, and the second cup-dropping hole 342 is located at the second limit state position. The motion channel 343 is also provided with a docking position, and at the docking position, the cup body guide channel 311 of the cup body guide portion 314 docks with the output port of the loading chute 200. The first cup-dropping hole 341 is connected to the reaction cup buffer unit 600 through a first cup-dropping channel (not shown in the figure), and the reaction cup can accurately fall into the reaction cup buffer unit 600 along the first cup-dropping channel; and / or the second cup-dropping hole 342 is connected to the reaction cup buffer unit 600 through a second cup-dropping channel 350 (see FIG. Figure 2 As shown in the figure, the reaction cup is connected to the reaction cup recovery unit, and the reaction cup can accurately fall into the reaction cup recovery unit along the second cup dropping through hole 440.

[0061] The diameter of the first cup dropping channel and / or the second cup dropping channel 440 is slightly larger than the diameter of the reaction cup, so as to avoid the reaction cup from flipping when the reaction cup is transferred through the first cup dropping channel and / or the second cup dropping channel 440 .

[0062] The first driving assembly 320 drives the cup body guide 314 of the push block 310 to reach the docking position, so that the cup body guide 314 of the push block 310 receives the reaction cup 500 on the to-be-loaded position 230; the first driving assembly 320 drives the cup body guide 314 of the push block 310 to move from the docking position to the first limit state position along the first direction, so that the upright reaction cup is driven to the first cup drop hole 341 and drops from the first cup drop hole 341 into the reaction cup buffer unit 600, and at this time, the loading chute 2 00 is blocked by the cup body blocking portion 313 of the push block 310; or the first driving component 320 drives the cup body guiding portion 314 of the push block 310 to move in a second direction opposite to the first direction to a second limit state position, so that the inverted reaction cup is driven to the second cup dropping hole 342 and falls into the reaction cup recovery unit from the second cup dropping hole 342. At this time, the reaction cup on the waiting loading position 230 of the loading chute 200 is blocked by the cup body blocking portion 313 of the push block 310.

[0063] In one embodiment, see Figure 4As shown, the cup separation mechanism 400 includes a separation block 410 and a second driving component, and the second driving component is used to drive the separation block 410 to be inserted between the first reaction cup and the second reaction cup at the output port of the loading chute 200 along the width direction of the loading chute 200, and the second driving component and the first driving component 320 have the same structure.

[0064] In this embodiment, the movement of the push block 310 and the movement of the separation block 410 are driven simultaneously by the same power source, so as to simplify the instrument structure and save costs.

[0065] In one embodiment, the separation block 410 of the cup separation mechanism 400 is fixedly mounted on the pushing block 310 of the cup pushing mechanism 300 , so that the first driving assembly 320 drives the movement of the separation block 410 and the pushing block 310 at the same time.

[0066] In one embodiment, the separation block 410 of the cup separation mechanism 400 and the pushing block 310 of the cup pushing mechanism 300 are independent of each other, that is, the separation block 410 and the pushing block 310 are separated from each other, and the first driving component 320 is respectively connected to the separation block and the pushing block 310 through two sets of transmission components, so that the first driving component 320 drives the movement of the separation block 410 and the pushing block 310 at the same time. The transmission component can be a variety of transmission structures such as gear rack transmission and pulley transmission, which are not limited in this embodiment.

[0067] In one embodiment, see Figure 4 As shown, the first driving assembly 320 includes a driver 321 , and a gear 322 and a rack 323 meshing with each other. The driver 321 is drivingly connected to the gear 322 , and the rack 323 is connected to the push block 310 .

[0068] In this embodiment, continue to refer to Figure 3 and Figure 4 As shown, the first driving assembly 320 is connected to the gear 322 by a driver 321, the gear 322 is meshed with the rack 323, the gear 322 rotates to drive the rack 323 to move in a straight line, and the rack 323 drives the push block 310 to move in a straight line. In order to facilitate the first driving assembly 320 to drive the separation block 410 to move at the same time, the rack 323 is fixedly arranged on the side of the push block 310 away from the loading chute 200, and the separation block 410 is fixedly arranged on the other side of the push block 310 close to the loading chute 200, so that the first driving assembly 320 can drive the movement of the separation block 410 and the push block 310 at the same time. Specifically, the driver 321 can be a stepping motor.

[0069] In one embodiment, the separation block 410 is fixedly connected to one end of the push block 310. When the push block 310 transports the current reaction cup 500, the separation block 410 moves with the push block 310 and is inserted between the first reaction cup and the second reaction cup blocked by the cup body blocking portion of the push block at the output port of the loading chute 200.

[0070] In this embodiment, the separation block 410 is fixedly connected to one end of the push block 310, and the first driving assembly 320 can drive the separation block 410 and the push block 310 to move at the same time; and in the process of the push block 310 transporting the current reaction cup 500, the separation block 410 follows the push block 310 to move and is inserted between the first reaction cup and the second reaction cup located at the output port of the loading chute 200. With this structure, in the process of the push block 310 transporting the current reaction cup 500, the separation block 410 separates the overlapping cup ears of the first reaction cup to be transported and the second reaction cup located at the output port of the loading chute 200, ensuring that when the subsequent push block 310 docks with the output port of the loading chute 200, the cup ear of the first reaction cup to be transported located at the output port of the loading chute 200 is no longer located above the cup ear of the adjacent second reaction cup, so that the first reaction cup can smoothly fall into the cup body guide channel 300, thereby ensuring the compactness of the device timing and improving the loading efficiency of the entire device. That is, the synchronous movement of the separation block 410 and the push block 310 can simultaneously realize the transfer of the reaction cup located in the cup pushing mechanism and the separation of the cup ears of two adjacent reaction cups located at the output port of the loading chute 200, thereby effectively improving the loading efficiency.

[0071] In one embodiment, see Figure 3 and Figure 4 As shown, the cup pushing mechanism 300 includes a first sensing component 330, and the first sensing component 330 is used to perform inverted / upright detection on the reaction cup 500 at the loading position 230 at the output port of the loading chute 200; the first driving component 320 is used to drive the pushing block 310 to move along a first direction to transport the identified upright reaction cup 500 to the reaction cup buffer unit 600; or to drive the pushing block 310 to move along a second direction opposite to the first direction to transport the identified inverted reaction cup 500 to the reaction cup recovery unit.

[0072] In this embodiment, the reaction cup recovery unit may be a reaction cup waste bin and / or a reaction cup recovery and conveying mechanism. The reaction cup recovery and conveying mechanism is used to transport the inverted reaction cup back to the silo 100. The inverted reaction cup may be directly transported to the reaction cup waste bin for disposal; the inverted reaction cup may also be transported to the reaction cup recovery and conveying mechanism, and the inverted reaction cup may be transported back to the silo 100 by the reaction cup recovery and conveying mechanism; the inverted reaction cup may also be directly transported to the reaction cup waste bin, and then the inverted reaction cup in the reaction cup waste bin may be transported back to the silo 100 by the reaction cup recovery and conveying mechanism.

[0073] For the existing cuvette loading device, the cuvette after being transferred into the loading chute is prone to inverted state, and the inverted cuvette will cause instrument failure. The specific reasons are as follows Fig.12 As shown, after the inverted reaction cup is output through the loading chute and transported to the reaction cup buffer unit 600 by the cup dropping channel, the inverted reaction cup will be stuck at the output port of the dropping channel and the outer shell of the reaction cup buffer unit 600, affecting the rotation or movement of the reaction cup buffer unit 600, thereby causing the reaction cup to be stuck, causing instrument failure and requiring shutdown for maintenance, thereby affecting the normal operation of the entire instrument.

[0074] In this embodiment, the first sensing component 330 of the cup pushing mechanism 300 cooperates with the push block 310 and the first driving component 320 to enable the cup pushing mechanism 310 to move in a first direction to transport the identified upright reaction cup 500 to the reaction cup buffer unit 600; or to move in a second direction opposite to the first direction to transport the identified inverted reaction cup 500 to the reaction cup recovery unit, thereby preventing the inverted reaction cup from flowing into the reaction cup buffer unit 600 and causing the cup to get stuck, thereby preventing the inverted reaction cup from causing instrument failure, ensuring the normal operation of the sample analyzer, and effectively reducing the cost of equipment inspection and maintenance.

[0075] In this embodiment, the cup pushing mechanism 300 is provided with a first sensing component 330 for detecting inverted / upright of the cuvette 500 at the outlet of the loading chute 200. The first sensing component 330 can detect whether the cuvette 500 at the outlet of the loading chute 200 is in an inverted state or an upright state.

[0076] The loading chute 200 is used to support the cup ear 520 of the reaction cup 500 and guide the reaction cup 500 to slide. Compared with the cup bottom of the reaction cup, the cup ear 520 of the reaction cup is closer to the cup mouth. When the reaction cup 500 is in an upright state, the cup ear 520 of the reaction cup 500 is supported on the loading chute 200, and the cup body 510 of the reaction cup 500 is mainly located between the two groove walls of the loading chute 200; when the reaction cup 500 is in an inverted state, although the cup ear 520 of the reaction cup 500 is also supported on the loading chute 200, the cup body 510 of the reaction cup 500 is mainly located above the loading chute 200. That is, for the reaction cup located at the to-be-loaded position 230 at the output port of the loading chute 200, the height is higher when it is in an inverted state than when it is in an upright state. Therefore, by detecting the height of the cuvette 500 located at the to-be-loaded position 230 at the output port of the loading chute 200 through the first sensing component 330 , it is possible to detect whether the cuvette 500 is upright or inverted.

[0077] Therefore, in one embodiment, the first sensing component 330 senses and identifies the preset height H above the output port to-be-loaded position 230 of the loading chute 200, and the preset height H satisfies a1<H≤a2, wherein a1 is the height of the reaction cup when the reaction cup on the to-be-loaded position 230 is in an upright state, and a2 is the height of the reaction cup when the reaction cup on the to-be-loaded position 230 is in an inverted state. Preferably, in order to reduce the risk of misjudgment, the preset height H satisfies a1<H<a2.

[0078] In one embodiment, the first sensing component 330 can be a reflective photoelectric sensor or a through-beam photoelectric sensor. Preferably, the first sensing component 330 is a reflective photoelectric sensor, so that the detection range of the first sensing component 330 is wider and the installation occupies a small space. Furthermore, the first sensing component 330 is arranged near the to-be-loaded position 230 of the output port of the loading chute 200, and performs an inverted / upright detection on the reaction cup on the to-be-loaded position 230 along the length direction of the loading chute 200. With this structure, when the reaction cup 500 located at the to-be-loaded position 230 of the loading chute 200 is in an inverted state and there is a certain deflection along the length direction of the loading chute 200, the first sensing component 330 can still accurately detect, improve the accuracy of the detection, and can also prevent the first sensing component 330 from affecting the movement of the separation block. The first sensing component 330 is fixedly connected to the loading chute 200 via a fixing block. The first sensing component 330 is located in the output direction of the loading chute 200 , facing the output port of the loading chute, and located above the pushing block 310 .

[0079] It should be understood that the first sensing component may also include other sensors capable of detecting obstacles, such as infrared sensors, which are not described in detail in this embodiment.

[0080] In this embodiment, the cup separation mechanism 400 is provided to separate the overlapping cup ears of the reaction cups 500 adjacent to the output port of the loading chute 200, thereby avoiding cup jamming caused by overlapping cup ears of adjacent reaction cups 500 and ensuring that the first reaction cup can fall normally into the cup body guide channel 311. In addition, the first sensing component 330 of the cup pushing mechanism 300 cooperates with the pushing block 310 and the first driving component 320 to transfer the inverted reaction cup to the reaction cup recovery unit, thereby avoiding the inverted reaction cup from entering the reaction cup buffer unit 600 and causing the cup to be jammed, and avoiding the inverted reaction cup from causing instrument failure. In this way, the situation in which the device is shut down for maintenance due to cup jamming is greatly avoided, the instrument failure rate is reduced, the normal operation of the instrument is ensured, and the labor cost of device maintenance is reduced.

[0081] In one embodiment, see Figure 4 As shown, there are two separation blocks 410, and the two separation blocks 410 are fixedly connected to the two ends of the push block 310 respectively; during the process of the push block 310 transporting the upright reaction cup 500 or the inverted reaction cup 500, any one of the two separation blocks 410 is inserted between the first reaction cup and the second reaction cup at the output port of the loading chute 200 which are blocked by the cup body blocking part of the push block 310.

[0082] In this embodiment, the push block 310 is connected to the separation block 410 at both ends of the loading chute 200 in the width direction, that is, one end of the push block 310 is connected to one separation block 410 , and the other end of the push block 310 is connected to another separation block 410 .

[0083] In this embodiment, the push block 310 can move in a first direction to transport the identified upright cuvette 500 to the cuvette buffer unit 600; or move in a second direction opposite to the first direction to transport the identified inverted cuvette 500 to the cuvette recovery unit; the number of separation blocks 410 is set to two, and the two separation blocks 410 are fixedly connected to the two ends of the push block 310 respectively, so that no matter whether the push block 310 moves in the first direction or the second direction, one of the separation blocks 410 can be inserted between the first cuvette and the second cuvette located at the output port of the loading chute 200. No matter whether the push block 310 transports the upright cuvette 500 or the inverted cuvette 500, during the transport process, any one of the two separation blocks 410 can be ensured to be inserted between the first cuvette and the second cuvette located at the output port of the loading chute 200, so as to separate the overlapping cup ears between two adjacent cuvettes blocked by the cup body blocking portion of the push block 310 at the output port of the loading chute 200.

[0084] In one embodiment, see Figure 7 and Figure 8As shown, the separation block 410 includes a separation portion 411 that contacts and acts on the reaction cup 500, and the width of the separation portion 411 gradually increases from the first end 411a close to the loading chute 200 to the second end 411b away from the loading chute 200, so that the separation portion 411 can separate the overlapping cup ears of two reaction cups during the process of inserting the first reaction cup and the second reaction cup blocked by the cup body blocking portion of the push block at the output port of the loading chute 200.

[0085] In this embodiment, the separation portion 411 is the part that contacts the reaction cup and acts on the reaction cup. The width of the separation portion 411 gradually increases from the first end 411a close to the loading chute 200 to the second end 411b away from the loading chute 200, so that the second driving component can drive the separation block 410 to move, and the overlapping cup ears of the two reaction cups can be separated during the process of inserting the first reaction cup and the second reaction cup at the output port of the loading chute 200. With this structure, it is possible to avoid the need to set up an additional driving component for separating the overlapping cup ears of two adjacent reaction cups, simplify the instrument structure, and simplify the separation action of the cup separation mechanism 400, thereby improving the working efficiency of the cup separation mechanism 400.

[0086] In one embodiment, the cross-sectional shape of the separation portion 411 in the plane direction parallel to the cup ears of the reaction cup is a triangle, so that the width of the separation portion 411 can gradually increase from the first end 411a close to the loading chute 200 to the second end 411b away from the loading chute 200. As the depth of the separation portion 411 inserted between the two reaction cups increases, the distance between the two reaction cups can be increased, thereby achieving the separation of the cup ears of the reaction cups.

[0087] In one embodiment, the separation portion 411 may be a wedge-shaped structure, and the width of the wedge-shaped structure gradually increases from a first end 411 a close to the loading chute 200 to a second end 411 b away from the loading chute 200 .

[0088] In one embodiment, the separation portion 411 may be a conical structure, and the conical structure gradually increases from the first end 411a close to the loading chute 200 to the second end 411b away from the loading chute 200. In other embodiments, the separation portion 411 may also be an irregular structure, and the separation portion 411 only needs to gradually increase in width from the first end 411a close to the loading chute 200 to the second end 411b away from the loading chute 200 to achieve a better separation effect for the reaction cup. Therefore, this embodiment does not limit the specific shape of the separation portion 411.

[0089] In one embodiment, see Figure 7 and Figure 8As shown, the separation block 410 includes a mounting portion 420, a connecting portion 412 and a separating portion 411. The separating portion 411 is fixedly connected to the mounting portion 420 via the connecting portion 412. The connecting portion 412 and the separating portion 411 are arranged along the width direction of the loading slot 200. The mounting portion 420 is fixedly connected to one end of the push block 310.

[0090] It should be understood that the connecting portion 412 is used to connect the separating portion 411 with the mounting portion 420, and therefore, the shape of the connecting portion 412 can be any shape. In one embodiment, the connecting portion is in the shape of a rectangular body; in one embodiment, the connecting portion is in the shape of a pyramid; in one embodiment, the connecting portion is in the shape of a cylinder.

[0091] In one embodiment, the mounting portion 420 , the connecting portion 412 and the separating portion 411 are an integrated structure. Specifically, the connecting portion 412 and the separating portion 411 as a whole have a triangular cross-sectional shape in a plane direction parallel to the cup ear of the reaction cup.

[0092] In one embodiment, the mounting portion 420 , the connecting portion 412 and the separating portion 411 are split structures.

[0093] In one embodiment, see Figure 8 As shown, the minimum value of the width D of the second end 411 b of the separation portion 411 is greater than twice the width of the cup ear 520 of the reaction cup 500 .

[0094] In this embodiment, the minimum value of the width D of the second end 411b of the separation portion 411 that contacts and acts on the reaction cup is set to be greater than twice the width of the cup ear 520 of the reaction cup 500. In this way, when the separation block 410 moves to the preset position, the second end 411b of the separation portion 411 of the separation block 410 is inserted between two adjacent reaction cups 500, and the minimum value of the width of the second end 411b of the separation portion 411 is greater than twice the width of the cup ear 520 of the reaction cup 500, ensuring that the overlapping cup ears of the two adjacent reaction cups 500 can be separated, so that the cup ear of the first reaction cup at the output port of the loading chute 200 is no longer located above the cup ear of the second reaction cup.

[0095] In one embodiment, the minimum distance between the first end 411a of the separation portion 411 and the side of the push block 310 that is close to each other is greater than the outer diameter of a reaction cup 500 and less than 1.5 times the sum of the outer diameter of the reaction cup 500 and the width of the cup ear 520, thereby ensuring that the separation portion 411 can be inserted between the first reaction cup and the second reaction cup at the output port of the loading chute 200 and preventing the separation portion 411 from being inserted between other two adjacent reaction cups.

[0096] In one embodiment, the separation portion 411 includes a first separation portion 4111, the upper surface of the first separation portion 4111 is lower than the cup mouths of the two reaction cups 500 to be separated at the output port of the loading chute 200, and the lower surface of the first separation portion 4111 is higher than the cup ears 520 of the two reaction cups 500 to be separated.

[0097] In this embodiment, the position where the first separation part 4111 acts on the reaction cup 500 is limited, so that the separation block 410 can stably separate the overlapping cup ears of the two reaction cups to be separated. At the same time, the lower surface of the first separation part 4111 is higher than the cup ears 520 of the two reaction cups 500 to be separated, so as to avoid the lower surface of the first separation part 4111 contacting the cup ears of the reaction cup when separating the cup ears of the two reaction cups, thereby affecting the separation process of the two reaction cups.

[0098] In one embodiment, see Figure 3 As shown, the separation block 410 further includes a second separation portion 4112, the upper surface of the second separation portion 4112 is lower than the cup ears 520 of the two reaction cups 500 to be separated, and the lower surface of the second separation portion 4112 is higher than the bottom of the two reaction cups 500 to be separated.

[0099] In this embodiment, the separation block 410 includes a first separation part 4111 and a second separation part 4112. The first separation part 4111 acts on the upper part of the two reaction cups to be separated, and the second separation part 4112 acts on the lower part of the two reaction cups to be separated. The first separation part 4111 and the second separation part 4112 can simultaneously apply force to the cup body above and below the cup ears 520, so that the overlapping cup ears of adjacent reaction cups 500 can be fully and stably separated. The upper surface of the second separation part 4112 is lower than the cup ears 520 of the two reaction cups 500 to be separated, and the lower surface of the second separation part 4112 is higher than the bottom of the two reaction cups 500 to be separated, that is, the second separation part 4112 acts between the cup ears 420 of the reaction cup and the bottom of the reaction cup, so as to achieve force balance of the reaction cup 500, so that the separation block 410 can stably separate the overlapping cup ears of the two reaction cups to be separated. At the same time, the lower surface of the second separation part 4112 is made lower than the cup ears 520 of the two reaction cups 500 to be separated, so as to avoid the upper surface of the second separation part 4112 contacting the cup ears of the reaction cups when separating the cup ears of the two reaction cups and affecting the separation process of the two reaction cups.

[0100] In one embodiment, see Figure 6As shown, two supporting surfaces 210 inclined toward the inside of the loading chute 200 are provided on both sides of the length direction of the loading chute 200, and the two supporting surfaces 210 are used to support the cup ears 520 of the reaction cup 500, and the vertical height of the supporting surface 210 is greater than the outer diameter of a reaction cup 500; the surface of the supporting surface 210 is provided with an avoidance groove 211 for the first separation part 411 to pass through.

[0101] In this embodiment, the loading chute 200 is provided with a support surface 210 for supporting the cup ears 520 of the reaction cup 500. The minimum distance between the two support surfaces 210 on both sides of the loading chute 200 is greater than or equal to the outer diameter of the cup body and less than the outer diameter of the cup ears 520, so that the cup ears of the reaction cup 500 are supported on the support surfaces 210 that can be supported on both sides of the loading chute 200 and slide in sequence; wherein, most of the reaction cups 500 enter the loading chute 200 in an upright state with the cup mouth facing upward, and some The reaction cup 500 enters the loading chute 200 in an inverted state with the cup mouth facing downward, or in a state of lying flat on two support surfaces 210. In order to prevent the reaction cup 500 lying flat on two support surfaces 210 from rolling down from the loading chute 200, in this embodiment, the vertical height of the support surface 210 is set to be greater than the outer diameter of one reaction cup 500, that is, greater than the outer diameter of the cup ear of the reaction cup 500, so as to effectively prevent the reaction cup that enters the loading chute 200 in a lying state from falling off the loading chute 200 and being damaged.

[0102] In order to ensure that the first separation part 4111 can effectively act on the position close to the cup ears of the reaction cup 500 to separate the overlapping cup ears of adjacent reaction cups 500, in this embodiment, an avoidance groove 211 for the first separation part 4111 to pass through is opened on the surface of the support surface 210. The avoidance groove 211 is located at the output port of the loading chute 200.

[0103] In one embodiment, continue to refer to Figure 6 As shown, a through hole 212 is formed on the side wall of the loading chute 200 for the second separation portion 4112 to pass through.

[0104] In this embodiment, the separation block 410 includes a first separation portion 4111 and a second separation portion 4112, wherein the upper surface of the second separation portion 4112 is lower than the cup ears 520 of the two reaction cups 500 to be separated, and the lower surface of the second separation portion 4112 is higher than the bottom of the two reaction cups 500 to be separated; similarly, in order to ensure that the second separation portion 4112 can smoothly act on the reaction cups 500, a through hole 212 is opened on the side wall of the loading chute 200 for the second separation portion 4112 to pass through. Further, the through hole 212 is located at the output port of the loading chute 200.

[0105] In one embodiment, see Figure 6 As shown, the loading chute 200 gradually tilts downward from the input port 201 to the output port 202, and the cuvette 500 is in a tilted state when located at the output port 202 of the loading chute 200, so that the cuvette 500 on the loading chute 200 can slide under the action of gravity and fall from the output port 202 of the loading chute 200; see Figure 5 As shown, the cup pusher 310 of the cup pusher mechanism 300 is provided with a cup body guiding channel 311 , and a reaction cup placement hole 312 is formed between the cup body guiding channel 311 and the cup drop slide 340 for receiving the dropped reaction cup 500 .

[0106] In this embodiment, the loading chute 200 is gradually tilted downward from the input port 201 to the output port 202, which facilitates the queuing and transportation of the reaction cups 500 on the loading chute 200 and allows the reaction cups 500 to slide to the output port 202 and fall into the cup body guide channel 311 under the action of their own gravity.

[0107] In one embodiment, see Figure 6 and Fig. 9 As shown, two supporting surfaces 210 inclined toward the inside of the loading chute 200 are provided on both sides of the length direction of the loading chute 200, and the two supporting surfaces 210 are used to support the cup ears 520 of the reaction cup 500 and guide the reaction cup 500 to slide;

[0108] In one embodiment, two extensions 220 are provided at the output port of the loading chute 200 on both sides along the conveying direction thereof, the two extensions 220 are arranged beyond the bottom end of the loading chute 200, the two support surfaces 210 extend to the two extensions 220 respectively; the two extensions 220 are located on both sides of the cup body guide channel 311. The distance between the loading chute 200 and the cup body guide channel 311 is reduced by the provided extensions, and the cup jamming caused by the abnormal dropping posture of the reaction cup outputted from the loading chute 200 and the failure to drop normally and accurately into the cup body guide channel 311 is reduced, so that the reaction cup dropped from the output port of the loading chute 200 accurately reaches the cup body guide channel 311 along the extensions, and the cup jamming caused by the abnormal dropping of the reaction cup is reduced.

[0109] Since the extension portion 220 is provided, the extension portion 220 will block the reaction cup in the cup body guide channel 311 in the push block 310 from moving along the width direction of the loading chute 200. In order to prevent the extension portion 220 from affecting the movement of the push block 310, it is necessary to make the reaction cup output from the loading chute 200 fall down a certain height along the cup body guide channel 311, so that the cup mouth of the reaction cup located in the cup body guide channel 311 avoids the extension portion 220 in height, and then control the first driving component 320 to drive the push block 310 to move along the width direction of the loading chute 200, so that the push block 310 transports the reaction cup to the reaction cup buffer unit 600 or the reaction cup recovery unit. By setting up the cup separation mechanism 400, the overlapping cup ears of the first reaction cup and the second reaction cup adjacent to the output port of the loading chute 200 are separated, so that the first reaction cup at the output port of the loading chute 200 can smoothly fall into the cup body guide channel 311 of the push block 310, so that the first reaction cup avoids the extension part 220 in height, and the first reaction cup is prevented from being stuck due to the failure of the first reaction cup to fall normally; the instrument failure rate is reduced, and the cup pushing mechanism 300 transports multiple upright reaction cups to the reaction cup buffer unit 600 one by one to ensure the normal subsequent detection work of the sample analyzer, and the cup pushing mechanism 300 transports multiple inverted reaction cups to the reaction cup recovery unit one by one to avoid the inverted reaction cup flowing into the reaction cup buffer unit 600 and causing the cup to be stuck, and to avoid the inverted reaction cup causing instrument failure.

[0110] In one embodiment, see Fig.10 As shown, in order to prevent the extension portion from interfering with the falling of the reaction cup 500, the distance S between the side of the cup body guiding channel 311 away from the loading chute 200 and the extension portion 220 in the length direction of the loading chute 200 satisfies d / 2<S<d, where d is the outer diameter of the reaction cup.

[0111] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A cuvette loading device, characterized in that: include: A silo is used to hold a reaction cup, wherein the reaction cup comprises a cup body and cup ears arranged on the periphery of the cup body; A loading chute, used for sequentially arranging and transporting the reaction cups from the silo; A cup body guiding channel, used for receiving a single reaction cup dropped from the output port of the loading chute, and guiding the received reaction cup to move to the reaction cup buffer unit; The cup separation mechanism is used to separate the overlapping cup ears of the first reaction cup and the second reaction cup adjacent to the output port of the loading chute, so that the first reaction cup can fall into the cup body guide channel.

2. The cuvette loading device according to claim 1, characterized in that: The cup separation mechanism is used to drive the second reaction cup to move away from the first reaction cup in a direction opposite to the conveying direction of the loading chute, so as to separate the overlapping cup ears between the first reaction cup and the second reaction cup.

3. The cuvette loading device according to claim 1, characterized in that: It also includes a cup pushing mechanism, which includes a pushing block and a first driving component, the pushing block includes a cup body blocking part and a cup body guiding part, the cup body guiding channel is arranged in the cup body guiding part, the cup body blocking part is used to block the reaction cup at the output port of the loading chute, and the first driving component is used to drive the pushing block to move along the width direction of the loading chute to transport the reaction cup in the cup body guiding channel to the reaction cup buffer unit.

4. The reaction cup loading device according to claim 3, characterized in that: The cup separation mechanism includes a separation block and a second driving component, wherein the second driving component is used to drive the separation block to be inserted between the first reaction cup and the second reaction cup at the output port of the loading chute along the width direction of the loading chute, and the second driving component and the first driving component have the same structure.

5. The cuvette loading device according to claim 4, characterized in that: The separation block is fixedly connected to one end of the push block. When the push block transports the current reaction cup, the separation block moves with the push block and is inserted between the first reaction cup and the second reaction cup blocked by the cup body blocking part of the push block at the output port of the loading chute.

6. The reaction cup loading device according to claim 5, characterized in that: The cup pushing mechanism also includes a first sensing component, which is used to perform inverted / upright detection on the reaction cup to be loaded at the output port of the loading chute; the first driving component is used to drive the pushing block to move in a first direction to transport the identified upright reaction cup to the reaction cup buffer unit; or to drive the pushing block to move in a second direction opposite to the first direction to transport the identified inverted reaction cup to the reaction cup recovery unit.

7. The cuvette loading device according to claim 6, characterized in that: There are two separation blocks, and the two separation blocks are fixedly connected to the two ends of the push block respectively; during the process of the push block transporting the upright reaction cup or the inverted reaction cup, any one of the two separation blocks is inserted between the first reaction cup and the second reaction cup at the output port of the loading chute and blocked by the cup body blocking part of the push block.

8. The cuvette loading device according to claim 4, characterized in that: The separation block includes a separation portion that contacts and acts on the reaction cup, and the width of the separation portion gradually increases from a first end close to the loading chute to a second end away from the loading chute, so that the separation portion separates the overlapping cup ears of the two reaction cups during the process of inserting the first reaction cup and the second reaction cup into the output port of the loading chute.

9. The cuvette loading device according to claim 8, characterized in that: The minimum value of the width of the second end of the separation portion is greater than twice the width of the ear of the reaction cup.

10. The reaction cup loading device according to claim 8, characterized in that: The minimum distance between the first end of the separation portion and the side of the push block close to each other is greater than the outer diameter of a reaction cup and less than 1.5 times the sum of the outer diameter of the reaction cup and the width of the cup ear.

11. The cuvette loading device according to claim 8, characterized in that: The separation part comprises a first separation part, the upper surface of which is lower than the cup openings of two reaction cups to be separated at the output port of the loading chute, and the lower surface of which is higher than the cup ears of the two reaction cups to be separated.

12. The cuvette loading device according to claim 11, characterized in that: The separation part further includes a second separation part, the upper surface of the second separation part is lower than the cup ears of the two reaction cups to be separated, and the lower surface of the second separation part is higher than the bottoms of the two reaction cups to be separated.

13. The cuvette loading device according to claim 11, characterized in that: Two supporting surfaces inclined toward the inside of the loading chute are provided on both sides in the length direction of the loading chute, the two supporting surfaces are used to support the cup ears of the reaction cup, and the vertical height of the supporting surfaces is greater than the outer diameter of a reaction cup; and an avoidance groove for the first separation part to pass through is provided on the surface of the supporting surface.

14. The cuvette loading device according to claim 12, characterized in that: A through hole is formed on the side wall of the loading chute for the second separation portion to pass through.

15. The cuvette loading device according to claim 3, characterized in that: The first driving assembly includes a driver, and a gear and a rack meshing with each other. The driver is drivingly connected to the gear, and the rack is connected to the push block.

16. The cuvette loading device according to claim 1, characterized in that: The loading chute is gradually inclined downward from the input port to the output port, so that the reaction cup on the loading chute can slide under the action of gravity and fall from the output port of the loading chute; two supporting surfaces inclined toward the inside of the loading chute are provided on both sides of the length direction of the loading chute, and the two supporting surfaces are used to support the cup ears of the reaction cup and guide the sliding of the reaction cup.

17. The cuvette loading device according to claim 16, characterized in that: Two extensions are provided at the output port of the loading chute on both sides along the conveying direction thereof, the two extensions are arranged beyond the bottom end of the loading chute, and the two supporting surfaces extend to the two extensions respectively; the two extensions are located on both sides of the cup body guide channel, and the distance S between the side of the cup body guide channel away from the loading chute and the extensions in the length direction of the loading chute satisfies d / 2<S<d, where d is the outer diameter of the reaction cup.

Images