Automatic sampling device and urine sample analyzer

Abstract

The invention provides an automatic sample injection device and a urine sample analyzer, belongs to the field of medical apparatuses and instruments, and aims to solve the problem that a sample frame pushing device is blocked due to the fact that foreign matters penetrate through an avoiding opening of a putting-in area in the prior art. Comprising a base, a placing plate, a plurality of supporting columns, a collecting piece and a first sample frame pushing mechanism, and a placing area is arranged on the placing plate; a collecting piece is arranged below a sample frame pushing claw avoiding opening in the bottom of a putting-in area, so that dust and other foreign matters entering the position below the putting-in area from the sample frame pushing claw avoiding opening are collected through the collecting piece, and the problem that a first driving mechanism is blocked or even fails due to the foreign matters is solved; and the sample frame pushing claw is located between the collecting piece and the sample frame pushing claw avoiding opening, so that interference between the collecting piece and the sample frame pushing claw can be effectively avoided, and stable operation of equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of medical devices, in particular to an automatic sample feeding device and a urine sample analyzer. BACKGROUND

[0002] Full-automatic sample analyzers generally use automatic sample feeding devices. The core design feature of this system is to physically separate the loading area from the sample rack pushing mechanism: the loading area is responsible for receiving newly loaded sample racks, while the independent sample rack pushing mechanism continuously performs sample transport tasks. This architecture allows operators to replenish new sample racks to the loading area during system operation without interrupting the movement process of the sample rack pushing mechanism.

[0003] In the related art, the bottom of the loading area is provided with an avoidance opening, and the sample rack pushing mechanism is generally arranged below the loading area, and the pushing claw of the sample rack pushing mechanism penetrates through the avoidance opening to enter the loading area to perform the sample rack pushing operation. However, this scheme has hidden dangers: due to the avoidance opening, dust and other foreign matters are easy to enter the bottom of the loading area through the avoidance opening during the transportation and use of the sample analyzer, which may cause the transmission assembly of the sample rack pushing mechanism to be stuck, and even have a failure risk. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide an automatic sample feeding device and a urine sample analyzer to solve the problem that foreign matters penetrate through the avoidance opening of the loading area to cause the sample rack pushing device to be stuck.

[0005] To achieve the above-mentioned purposes and other related purposes, the present application provides an automatic sample feeding device, comprising: a base, a placing plate, a plurality of support columns, a collecting piece and a first sample rack pushing mechanism; one end of the support column is connected with the base, and the other end is connected with the placing plate; the placing plate is provided with a loading area, a transfer area and a recycling area; the bottom of the loading area is provided with a sample rack pushing claw avoidance opening; the collecting piece and the first sample rack pushing mechanism are arranged on the base and located between the base and the placing plate; the first sample rack pushing mechanism comprises a sample rack pushing claw for pushing the sample rack and a first driving mechanism for driving the sample rack pushing claw to move, and the sample rack pushing claw is located in the loading area after penetrating through the sample rack pushing claw avoidance opening; the collecting piece and the first driving mechanism are arranged on the base in a spaced manner, the collecting piece is arranged below the sample rack pushing claw avoidance opening, and the sample rack pushing claw is partially located between the sample rack pushing claw avoidance opening and the collecting piece, and the collecting piece is used to collect foreign matters that penetrate through the sample rack pushing claw avoidance opening into the space between the base and the loading area.

[0006] Optionally, the sample rack pushing paw avoiding openings are two, and the two sample rack pushing paw avoiding openings are arranged on the bottom of the placing area at intervals; the sample rack pushing paws are two, and each sample rack pushing paw is arranged corresponding to one sample rack pushing paw avoiding opening; the collecting pieces are two, and each collecting piece is arranged corresponding to one sample rack pushing paw avoiding opening; and the first driving mechanism is located between the two collecting pieces.

[0007] Optionally, one end of the two collecting pieces is connected through a handle.

[0008] Optionally, the first mounting pieces are two, and the collecting pieces are slidably connected with the first mounting pieces.

[0009] Optionally, the first mounting pieces comprise a first connecting plate, a second connecting plate, a first guide plate and a first limiting plate, the first connecting plate is arranged vertically on the base, the lower surface of the second connecting plate is arranged vertically with the first connecting plate, and the second connecting plate is arranged parallel to the base, and the collecting pieces are slidably connected with the upper surface of the second connecting plate; the first guide plate and the second limiting plate are arranged vertically on the upper surface of the second connecting plate, and the first guide plate, the second limiting plate and the second connecting plate are arranged vertically two by two.

[0010] Optionally, the first guide plate is provided with a second guide plate on the side away from the first limiting plate, and the second guide plate is arranged non-parallel to the first guide plate; and / or, the upper side of the second guide plate is further provided with a second limiting plate, and the second limiting plate is arranged parallel to the second connecting plate.

[0011] Optionally, the first sample rack pushing mechanism further comprises a mounting seat, a first pushing piece and an elastic piece; the mounting seat is arranged on the base, and the mounting seat is slidably connected with the base; the first driving mechanism is in transmission connection with the mounting seat, and the first driving mechanism is used to drive the mounting seat to move between the starting position and the terminal position; the first pushing piece is rotatably arranged on the mounting seat, and the sample rack pushing paw is arranged on the first pushing piece; a limiting portion is arranged on the mounting seat, and the limiting portion is used to abut against the side of the first pushing piece facing the starting position; the elastic piece is connected with the mounting seat and the first pushing piece respectively, and is used to make the first pushing piece abut against the limiting portion.

[0012] Optionally, the first sample rack pushing mechanism further comprises a rotating shaft, and the mounting seat is provided with a mounting groove, the rotating shaft is rotatably connected with the side wall of the mounting groove, and the first pushing piece is fixedly connected with the rotating shaft.

[0013] Optionally, the elastic piece is a spring; and / or, the first driving mechanism is a belt driving mechanism.

[0014] On the other hand, a urine analyzer is also provided, including a sample rack pushing device as described above, and further including: a reagent storage device, a sample transfer device, a detection device, and a counting plate; the sample transfer device is used to transfer the sample in the sample rack and the reagent stored in the reagent storage device to the counting plate, and the detection device is used to detect the mixture of sample and reagent on the counting plate.

[0015] As described above, the automatic sample introduction device and urine sample analyzer of the present invention have at least the following beneficial effects: by providing a collector below the sample rack pusher clearance opening at the bottom of the placement area, the collector can collect dust and other foreign objects entering the area below the placement area from the sample rack pusher clearance opening, thus avoiding the problem of foreign objects causing the first drive mechanism to jam or even fail. Furthermore, the sample rack pusher is located between the collector and the sample rack pusher clearance opening, which can also effectively prevent interference between the collector and the sample rack pusher, ensuring stable operation of the equipment. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of a urine analyzer according to the present invention.

[0017] Figure 2 The diagram shown is a schematic representation of the overall structure of the detection device of the present invention.

[0018] Figure 3 The diagram shown is a schematic representation of the detection device of the present invention with the third moving mechanism, microscope, and supplementary lighting components omitted.

[0019] Figure 4 The diagram shown illustrates the structure of the first moving mechanism and the counting plate limiting mechanism of the detection device of the present invention.

[0020] Figure 5 The diagram shown is a schematic diagram of the counting plate pushing device and the counting plate box pushing device of the present invention from an angle.

[0021] Figure 6 The diagram shown is a schematic representation of the counting plate pushing device and the counting plate box pushing device of the present invention, with the counting plate box omitted at an angle.

[0022] Figure 7 The diagram shown is an angled structural schematic of the counting plate pushing device and the counting plate box pushing device of the present invention, omitting the counting plate box, slide, and guide groove.

[0023] Figure 8 The diagram shown is a schematic diagram of the counting plate box of the present invention at one angle.

[0024] Figure 9 This is a schematic diagram of the counting plate box of the present invention from another angle.

[0025] Figure 10 The diagram shows another angle of the counting plate box of the present invention.

[0026] Figure 11 The diagram shown is a schematic representation of the overall structure of the counting plate of the present invention.

[0027] Figure 12 The diagram shown is a schematic diagram of an angle structure of the base plate of the counting plate of the present invention.

[0028] Figure 13 The diagram shown is a structural schematic of the cover plate of the counting plate of the present invention.

[0029] Figure 14 The diagram shown is a cross-sectional view of the counting plate of the present invention.

[0030] Figure 15 Displayed as Figure 14 An enlarged diagram of point A in the diagram.

[0031] Figure 16 The diagram shows another angle of the base plate of the counting plate of the present invention.

[0032] Figure 17 The diagram shown is a schematic representation of the sample storage device of the present invention.

[0033] Figure 18 The diagram shown is a schematic diagram of the sample holder of the present invention at one angle.

[0034] Figure 19 This is a schematic diagram of the sample holder of the present invention from another angle.

[0035] Figure 20 The diagram shown is a schematic representation of the sample storage device of the present invention with the placement plate omitted at one angle.

[0036] Figure 21 Displayed as Figure 20 An enlarged diagram of point B in the diagram.

[0037] Figure 22 The diagram shown is a schematic representation of the sample storage device of the present invention, omitting the placement plate.

[0038] Figure 23 The diagram shown is a schematic representation of the sample storage device of the present invention with the placement plate omitted from another angle.

[0039] Figure 24 The diagram shown is a schematic representation of the overall structure of the scanning mechanism of this invention.

[0040] Figure 25 The diagram shown is a partial structural schematic of the scanning mechanism of the present invention.

[0041] Figure 26The diagram shown is a structural schematic of the slider of the scanning mechanism of the present invention.

[0042] Figure 27 The diagram shown is a structural schematic of the first transmission component B of the scanning mechanism of the present invention.

[0043] Figure 28 The diagram shown is an angled structural schematic of the fixed component of the scanning mechanism of the present invention.

[0044] Figure 29 This is a schematic diagram of the fixed component of the scanning mechanism of the present invention from another angle.

[0045] Figure 30 The diagram shows a partial schematic of the drive shaft and clamping mechanism of the scanning mechanism of the present invention.

[0046] Component designation explanation: 1. Base; 2. Detection Device: 21. First Fixed Bracket; 22. Detection Platform; 221. First Through Hole; 23. Microscope; 24. Complementary Light Component; 25. Counting Plate Limiting Mechanism; 251. First Fixed Component; 2511. Counting Plate Limiting Groove; 2512. First Limiting Step; 252. Second Fixed Component; 2521. First Guide Surface; 253. Drive Assembly; 2531. Guide Post; 2532. Fixed Plate; 26. First Moving Mechanism; 261. First Fixed Seat; 262. First Drive Component; 263. 2631, 2632, 2633, 264, 265, 266, 267, 278, 279, 270, 271, 272, 272, 272, 272, 272, 272, 272, 272, 273, 274, 275, 276, 277, 278, 289, 280, 281, 282, 282, 282, 282, 282, 282, 283, 284, 285, 286, 287, 288, 289, 280, 281 ...8, 289, 280, 281, 282, 282, 282, 282, 283, 288, 289, 280, 281, 282, 282, 282, 282, 283, 289, 280, 281, 282, 282, 282, 282, 281, 282, 282, 282, 283, 289, 280, 281, 282, 282, 282, 282, 282, 282, 281, 282, 282, 28 3. Recycling device: 31. Storage box; 4. Counting board storage device; 41. Counting board box; 411. First receiving cavity; 4111. First side plate; 4112. Second side plate; 4113. First bottom plate; 4114. Third side plate; 412. First opening; 413. Protruding strip; 414. Connecting strip; 415. Counting board box sliding component; 416. Second counting board box fixing component; 417. Second opening; 418. Third opening; 42. Mounting bracket; 421. Guide groove; 43. Counting board box pushing mechanism; 431. First counting board box guide component; 4311. T-slot; 432. First counting board box fixing component; 433. Fourth driving component; 434. Fourth transmission assembly; 4341. Third pulley; 4342. Fourth pulley; 4343. Eighth belt; 435. Fourth guide component; 5. Counting plate pushing device: 51. Counting plate pushing mechanism, 52. Slide, 521. First slide groove, 522. Counting plate pusher claw clearance opening, 53. Fifth driving component, 54. Fifth transmission assembly, 541. Fifth pulley, 542. Sixth pulley, 543. Third belt, 55. Fifth guide component, 56. Counting plate pusher claw, 561. First connecting section, 562. Second connecting section, 563. Clearance section; 6. Sample storage device: 61. Base; 611. Second mounting component; 612. First mounting component; 6121. First connecting plate; 6122. Second connecting plate; 6123. First guide plate; 6124. First limiting plate; 6125. Second guide plate; 6126. Second limiting plate; 613. Third mounting component; 614. Fourth mounting component; 62. Placement plate; 621. Placement area; 622. Transfer area; 6221. Scanning position; 6222. Sample suction position; 623. Recovery area; 624. First guide bar; 625. Second guide bar; 626. Sample rack push claw clearance opening. 63. First sample rack pushing mechanism; 631. First mounting base; 6311. Limiting part; 6312. Mounting groove; 6313. Rotating shaft; 632. First driving mechanism; 6321. Sixth driving component; 6322. Sixth guide component; 6323. Sixth transmission assembly; 63231. Seventh pulley; 63232. Eighth pulley; 63233. Fourth belt; 633. First pushing component; 6331. Sample rack pusher; 63311. Sixth inclined surface; 634. Elastic component; 64. Second sample rack pushing mechanism; 641. Second pushing component; 6411. First bending part; 6412. Second bending part; 642. Seventh driving component; 643. Seventh transmission assembly; 6431. Ninth pulley; 6432. Tenth pulley; 6433. Fifth belt; 644. Seventh guide component. 65. Third sample rack pushing mechanism; 651. Third pushing component; 6511. Third bending part; 6512. Fourth bending part; 6513. Fifth bending part; 652. Eighth driving component; 653. Eighth transmission assembly; 6531. Eleventh pulley; 6532. Twelfth pulley; 6533. Sixth belt; 654. Eighth guide component; 66. Support column; 67. Sample rack; 671. Guide groove; 6711. Fourth inclined surface; 6712. Fifth inclined surface; 672. Divider strip; 673. Weight reduction groove; 674. Third limiting step. 68. Collection component; 681. Collection trough; 682. Handle; 69. Scanning mechanism; 691. Second fixed bracket; 692. Scanner; 693. Rotating mechanism; 6931. Sliding component; 69311. Third clearance hole; 69312. Guide bar; 69313. Limiting component; 6932. Second mounting base; 69321. First clearance hole; 6933. Ninth driving component; 6934. Ninth transmission assembly; 69341. Thirteenth pulley; 69342. Seventh belt; 6935. First transmission component; 69351. First transmission component A; 69352. First transmission component B; 6936. Second clearance hole; 69361. Second clearance hole A; 69362. Second clearance hole B; 693621. Third... Limiting groove, 69363, second clearance hole C, 694, up and down moving mechanism, 6941, tenth driving component, 6942, fourteenth pulley, 6943, fifteenth pulley, 6944, ninth belt, 6945, third fixing component, 695, drive shaft, 6951, second sliding groove, 696, clamping mechanism, 6961, fixing component, 69611, fourth fixing component, 696111, limiting sleeve, 696112, limiting hole, 696113, second receiving cavity, 69612, fifth fixing component, 6962, eleventh driving component, 6963, gripper, 69631, gear segment, 69632, connecting segment, 69633, clamping segment; 7. Reagent storage device; 8. Sample transfer device; 9. Counting plate: 91. Second base plate, 911. Clearance groove, 9111. First inclined surface, 9112. Third inclined surface, 912. Slot, 9121. Second inclined surface, 913. First limiting groove, 914. Second limiting groove, 915. Mixing groove, 916. Second limiting step, 917. Notch, 918. Groove, 92. Cover plate, 921. Claw, 9211. Connecting part, 9212. Protrusion, 922. Limiting strip, 923. Limiting block, 924. Protrusion, 93. Observation area. Detailed Implementation

[0047] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0048] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0049] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0050] Please see Figure 1 This invention provides a urine analyzer, including a base 1 and a detection device 2, a recovery device 3, a slide 52, a counting plate storage device 4, a counting plate pushing device 5, a sample storage device 6, a reagent storage device 7, and a sample transfer device 8 disposed on the base 1. The sample storage device 6 stores samples, the reagent storage device 7 stores reagents, and the counting plate storage device 4 stores a counting plate 9. One end of the slide 52 is connected to the counting plate storage device 4, and the other end is connected to the detection device 2. A sample addition position is provided on the slide 52, which can be any position in the extension direction of the slide 52, as long as the sample transfer device 8 does not interfere with other devices when adding samples and reagents to the observation area 93 of the counting plate 9 at that position. The sample transfer device 8 is used to transfer samples and reagents onto the counting plate 9 to form a mixture of samples and reagents. The counting plate pushing device 5 is used to push the counting plate 9 stored in the counting plate storage device 4 along the slide 52 to the sample feeding position. After the sample feeding is completed, the counting plate 9 after the sample feeding is pushed along the slide 52 into the detection device 2.

[0051] Please see Figure 2 The detection device 2 includes a first fixed bracket 21 and a detection platform 22, a microscope 23, a supplementary light component 24, a counting plate limiting mechanism 25, a first moving mechanism 26, and a second moving mechanism 27, all mounted on the first fixed bracket 21. The recycling device 3 includes a storage box 31 for storing the used counting plate 9. A counting plate inlet is provided above the storage box 31. The storage box 31 and the detection platform 22 are spaced apart along the first direction a.

[0052] The microscope 23 is located above the detection platform 22, and the supplementary light component 24 is located below the detection platform 22. The detection platform 22 is provided with a first through-hole 221 for the light from the supplementary light component 24 to pass through. The center lines of the microscope 23 and the supplementary light component 24 coincide with the central axis of the first through-hole 221. This means that the center lines of the image acquired by the microscope 23 and the center lines of the light beam emitted by the supplementary light component 24 coincide with the center line of the first through-hole 221, ensuring that the microscope 23 can acquire a clear image.

[0053] The first moving mechanism 26, the second moving mechanism 27, and the counting plate limiting mechanism 25 are partially located above the storage box 31. The first moving mechanism 26 is mounted on the second moving mechanism 27, which drives the first moving mechanism 26 to move along the first direction a and its opposite direction. The counting plate limiting mechanism 25 is mounted on the first moving mechanism 26 and is connected to the counting plate 9 to restrict the counting plate 9 from moving along the third direction c. The first moving mechanism 26 drives the counting plate 9, which is fixed on the counting plate limiting mechanism 25, to move on the detection platform 22 along the second direction b and its opposite direction. When the first moving mechanism 26 moves to the end of the second direction b, or when the first moving mechanism 26 drives the counting plate 9 to detach from the detection platform 22, the used counting plate 9 falls into the storage box 31 by its own weight. The first direction a, the second direction b, and the third direction c are arranged perpendicularly to each other. The first direction a is... Figure 2 The direction from front to back in the middle, the second direction b is Figure 2 In the left-to-right direction, the third direction c is Figure 2 The direction from bottom to top in the middle.

[0054] In use, the lower side of the counting plate 9 abuts against the upper side of the detection platform 22 to restrict the counting plate 9 from moving in the opposite direction of the third direction c. Then, the counting plate limiting mechanism 25 is connected to the counting plate 9 to restrict the counting plate 9 from moving in the third direction c. Then, under the action of the second moving mechanism 27, the counting plate 9 is driven to move in the first direction a and its opposite direction, and under the action of the first moving mechanism 26, the counting plate 9 is driven to move in the second direction b and its opposite direction, that is, the counting plate 9 slides on the upper surface of the detection platform 22, so that different positions of the observation area 93 of the counting plate 9 correspond to the central axis of the first through hole 221, thereby ensuring that the microscope 23 can acquire a complete image of the mixture and ensuring the accuracy of the detection results. After the detection device 2 completes the detection of the mixture of sample and reagent on the counting plate 9 (hereinafter referred to as the mixture), the first moving mechanism 26 drives the counting plate limiting mechanism 25 to move in the second direction b. When the first moving mechanism 26 moves to its limit position along the second direction b or when the lower side of the counting plate 9 disengages from the upper side of the detection platform 22, the counting plate 9 falls into the storage box 31 under its own gravity and is collected by the storage box 31, thereby avoiding the need for the setting of a robotic arm or other structures to complete the collection of the used counting plate 9.

[0055] The counting plate limiting mechanism 25 includes a first fixing member 251, a second fixing member 252, and a driving assembly 253. The first fixing member 251 is connected to the first moving mechanism 26. A counting plate limiting groove 2511 is provided on the first fixing member 251, and a first limiting step 2512 facing the detection platform 22 is provided on the side wall of the counting plate limiting groove 2511. The second fixing member 252 and the driving assembly 253 are disposed on the first fixing member 251. The driving assembly 253 is used to drive the second fixing member 252 to move, so that the second fixing member 252 closes the opening of the counting plate limiting groove 2511. Figure 11 As shown, a second limiting step 916 is also provided on the counting plate 9. The second limiting step 916 on the counting plate 9 is set towards the microscope 23. In this way, the counting plate 9 can be limited in the third direction c by utilizing the abutting action of the first limiting step 2512 of the first fixing member 251 and the second limiting step 916 on the counting plate 9.

[0056] The second fixing member 252 is provided with at least one second through hole; the driving assembly 253 includes at least one first guide post 2531, at least one reset member (not shown) and two fixing plates 2532; the two fixing plates 2532 are spaced apart on the first fixing member 251, the two ends of the first guide post 2531 are respectively connected to the fixing plate 2532, and the first guide post 2531 passes through the second through hole; the reset member and the first guide post 2531 are provided in a one-to-one correspondence, the reset member is sleeved on the first guide post 2531, one end of which is connected to one of the fixing plates 2532, and the other end is connected to the second fixing member 252. After the counting plate pushing device 5 pushes the counting plate 9 into the slot of the counting plate limiting groove 2511, the counting plate 9 abuts against the second fixing member 252. At this time, as the counting plate pushing device 5 continues to push, the second fixing member 252 is subjected to force, causing it to slide on the first guide post 2531. This compresses the reset member, thereby opening the counting plate limiting groove 2511. After the counting plate 9 is placed into the counting plate limiting groove 2511, the second fixing member 252, under the reset action of the reset member, closes the opening of the counting plate limiting groove 2511, thus fixing the counting plate 9 within the counting plate limiting groove 2511. In this embodiment, the reset member is a spring.

[0057] The side of the second fixing member 252 away from the slot of the counting plate limiting groove 2511 is at least partially an inclined first guide surface 2521. Correspondingly, the counting plate 9 is a rectangular mechanism, and a second guide surface is provided at one corner. Figure 11 (at position 917 in the diagram), thereby utilizing the action of the second guide surface on the counting plate 9 and the first guide surface 2521 on the second fixing member 252 to drive the second fixing member 252 to slide on the first guide post 2531.

[0058] The first moving mechanism 26 includes a first fixed base 261, a first driving member 262, a first transmission assembly 263, and a first guide member 264. The first fixed base 261 is connected to the second moving mechanism 27. The first driving member 262 and the first guide member 264 are disposed on the first fixed base 261, and the first fixed member 251 is slidably connected to the first guide member 264. The first driving member 262 drives the first fixed member 251 to move along the second direction b and the opposite direction on the first guide member 264 through the first transmission assembly 263. The first transmission assembly 263 can be a belt drive or other structural form. In this embodiment, the first transmission assembly 263 is a screw drive assembly. Specifically, the first driving member 262 can be a motor, and the first guide member 264 can be a guide rod. The first transmission assembly 263 includes a first lead screw 2631 and a first lead screw nut 2632. The first lead screw 2631 is coaxially mounted on the output shaft of the first drive member 262, and its end away from the first drive member 262 is rotatably connected to the first fixed base 261. The first lead screw nut 2632 is mounted on the first lead screw 2631 and is slidably connected to the first guide member 264. The first fixed member 251 is connected to the first lead screw nut 2632.

[0059] The second moving mechanism 27 includes a second driving member 271, a second transmission assembly 272, and a second guide member 273. The second driving member 271 and the second guide member 273 are mounted on the first fixed bracket 21, and the first fixed seat 261 is slidably mounted on the second guide member 273. The second driving member 271 drives the first fixed seat 261 to move in the first direction a and the opposite direction through the second transmission assembly 272. The second driving member 271 can be a motor, and the second guide member 273 can be a guide rail. The second transmission assembly 272 can be a lead screw drive or other transmission form. In this embodiment, the second transmission assembly 272 is a belt drive assembly, specifically including a first pulley 2721, a second pulley 2722, and a first belt 2723. The first pulley 2721 is connected to the second driving member 271, the second pulley 2722 is mounted on the first fixed bracket 21, and the first belt 2723 is sleeved on the first pulley 2721 and the second pulley 2722. The first fixed seat 261 is connected to the first belt 2723 through a belt clamping structure or other structure.

[0060] In this embodiment, the detection device 2 further includes a third moving mechanism 28, which is mounted on the first fixed support 21 and is used to move the microscope 23 along the third direction c and the opposite direction to adjust the gap between the microscope 23 and the detection platform 22, thereby playing a focusing role and ensuring that the microscope 23 can acquire a clear image.

[0061] The third moving mechanism 28 includes a third driving member 281, a third transmission assembly 282, and a third guide member 283. The third driving member 281 and the third guide member 283 are mounted on the first fixed bracket 21. The microscope 23 is slidably connected to the third guide member 283. The third driving member 281 drives the microscope 23 to move along the third direction c and the opposite direction through the third transmission assembly 282. The third driving member 281 can be a motor, the third guide member 283 can be a guide rod, and the third transmission assembly 282 can be a belt drive or other transmission form. In this embodiment, the third transmission assembly 282 is a lead screw drive assembly, specifically including a second lead screw 2821 and a second lead screw nut 2822. The second lead screw 2821 is coaxially mounted on the output shaft of the third driving member 281, and the second lead screw nut 2822 is mounted on the second lead screw 2821 and slidably connected to the third guide member 283. The microscope 23 is mounted on the lead screw nut.

[0062] like Figures 5-6 As shown, the counting plate storage device 4 includes: a counting plate box 41, a mounting bracket 42, and a counting plate box pushing mechanism 43. The counting plate box 41 has at least two first receiving cavities 411 spaced apart along a first direction a for accommodating counting plates 9. Each first receiving cavity 411 has a first opening 412 at its bottom for the counting plate 9 to pass through. The counting plate box pushing mechanism 43 and the counting plate pushing device 5 are mounted on the mounting bracket 42. The counting plate box pushing mechanism 43 drives the counting plate box 41 to move along the first direction a and its opposite direction, so that the first receiving cavity 411 of the counting plate box 41 faces the counting plate pushing device 5. The counting plate pushing device 5 includes a counting plate pushing mechanism 51 and a slide 52. One end of the slide 52 corresponds to the counting plate box 41, and the other end corresponds to the detection platform 22 of the detection device 2. The counting plate pushing mechanism 51 removes the counting plate 9 from the first receiving cavity 411 from the first opening 412 and pushes it along the slide 52 towards the detection device 2.

[0063] At the start of use, the first receiving cavity 411 at the end of the counting plate box 41 along the first direction a is positioned directly opposite the slide rail 52. At this time, the counting plate pushing device 5 can push out one counting plate 9 from the first opening 412 of the first receiving cavity 411 each time, according to the needs of the urine analyzer, for easy detection. After the counting plate 9 in the first receiving cavity 411 is completely pushed out, the counting plate box pushing mechanism 43 pushes the counting plate box 41 to move along the first direction a, so that another first receiving cavity 411 of the counting plate box 41 is positioned directly opposite the slide rail 52. The counting plate pushing device 5 can then push the counting plate 9 in this first receiving cavity 411 for easy detection.

[0064] This embodiment provides at least two first receiving cavities 411 arranged at intervals along a first direction a on the counting plate box 41 for accommodating the counting plates 9. In use, the counting plates 9 are removed from the first receiving cavities 411 by the counting plate pushing device 5. After all the counting plates 9 in the first receiving cavities 411 have been removed, the counting plate box pushing mechanism 43 pushes the counting plate box 41 to move, thereby allowing the counting plate pushing device 5 to push out the remaining counting plates 9 in the first receiving cavities 411. In this way, the normal operation of the analyzer can be ensured without frequent replacement of the counting plate box 41, reducing the workload of the operator and improving their overall work efficiency. It also reduces the risk of equipment damage or counting plate contamination caused by human error and reduces the operating cost of the urine analyzer.

[0065] like Figures 8-10 As shown, the counting plate box 41 may include a first side plate 4111, a second side plate 4112, a plurality of first bottom plates 4113, and a plurality of third side plates 4114; the first side plates 4111 and the second side plates 4112 are spaced apart, and the third side plates 4114 are connected to the first side plates 4111 and the second side plates 4112 respectively. The first side plates 4111, the second side plates 4112, and two adjacent third side plates 4114 form a first receiving cavity 411. There are at least three third side plates 4114, so there are at least two first receiving cavities 411. Each first receiving cavity 411 can accommodate a plurality of counting plates 9. A first bottom plate 4113 is provided at the bottom of each third side plate 4114, and two adjacent first bottom plates 4113 are spaced apart. The gap between two adjacent first base plates 4113 is used for the counting plate pusher 56 of the counting plate pushing device 5 to pass through, so that the counting plate pusher 56 abuts against the counting plate 9 at the bottom of the first receiving cavity 411, thereby realizing the operation of driving the counting plate 9 out of the counting plate box 41.

[0066] A protruding strip 413 may be provided on any one of the first side plate 4111, the second side plate 4112, or the third side plate 4114. In this embodiment, the protruding strip 413 is provided on the third side plate 4114 and located at the connection between the third side plate 4114 and the second side plate 4112. The protruding strip 413 is integrally formed with the third side plate 4114, thereby reducing assembly steps and lowering the manufacturing cost of the counting plate box 41. Figure 11As shown, the counting plate 9 has a notch 917 corresponding to the protrusion 413. The notch 917 corresponds to the second guide surface (the second guide surface is formed after cutting the notch 917 on the counting plate 9). This ensures that the counting plate 9 can be placed into the first receiving cavity 411 only when the notch 917 and the protrusion 413 are aligned, thus preventing incorrect placement of the counting plate 9 and ensuring that samples and reagents can be placed into the counting plate 9 during subsequent use. In this embodiment, the protrusion 413 is a triangular prism structure, the counting plate 9 is a rectangular structure, and the notch 917 is a chamfered structure formed by cutting one corner of the counting plate 9.

[0067] A first opening 412 is formed between the second side plate 4112 and the first bottom plate 4113 for the counting plate 9 to pass through. The height of the first opening 412 is greater than the height of a single counting plate 9 but less than twice the height of a single counting plate 9. That is, the first opening 412 can only allow one counting plate 9 to pass through at a time, which means that the counting plate pushing device 5 can only take out a single counting plate 9 from the counting plate box 41 at a time.

[0068] At least one connecting strip 414 is provided on the side wall of the first side plate 4111 away from the third side plate 4114. The extension length of the connecting strip 414 in the first direction a is less than or equal to the extension length of the first side plate 4111 in the first direction a, and the connecting strip 414 is arranged perpendicular to the third side plate 4114. The structural strength of the counting plate box 41 can be increased by providing the connecting strip 414.

[0069] A third opening 418 is provided on the second side plate 4112 at the position corresponding to each first receiving cavity 411. The third opening 418 communicates with the first opening 412 and the first receiving cavity 411, and the width of the third opening 418 along the first direction a is less than the length of the counting plate 9 along the first direction a, thereby ensuring that the counting plate 9 is accommodated in the first receiving cavity 411. The setting of the third opening 418 allows the operator to intuitively see the number of counting plates 9 in the counting plate box 41, which is convenient for the operator to use.

[0070] Please see Figure 6 , 9The counting board box pushing mechanism 43 may include a first counting board box guide 431 and a first counting board box fixing member 432. The first counting board box fixing member 432 is disposed at the end of the first counting board box guide 431 along the first direction a. The counting board box 41 includes a counting board box slider 415 and a second counting board box fixing member 416. The counting board box slider 415 and the second counting board box fixing member 416 are disposed on the side wall of the first side plate 4111 away from the second side plate 4112. The second counting board box fixing member 416 is disposed at the end of the counting board box slider 415 along the first direction a. The counting board box slider 415 is slidably connected to the first counting board box guide 431 in the first direction a. The first counting board box fixing member 432 and the second counting board box fixing member 416 are detachably connected, thereby facilitating the user to replace the counting board box 41.

[0071] The first counting board box fixing member 432 and the second counting board box fixing member 416 can be detachably connected by means of snap-fit ​​or other methods. In this embodiment, the first counting board box fixing member 432 and the second counting board box fixing member 416 are both magnets, and the magnetism of the first counting board box fixing member 432 and the second counting board box fixing member 416 is different. In this way, the first counting board box fixing member 432 and the second counting board box fixing member 416 are detachably connected by magnetic adsorption. In use, the operator only needs to pull the counting board box 41 to separate the first counting board box fixing member 432 and the second counting board box fixing member 416, thereby improving the operator's work efficiency.

[0072] A T-slot 4311 is provided on the first counting plate box guide member 431, and the counting plate box slider 415 is a T-shaped slider adapted to the T-slot 4311. The T-shaped slider and the T-slot 4311 are slidably connected. In this embodiment, by setting the T-slot 4311 and the T-shaped slider, the counting plate 9 can only have the degree of freedom to move in the first direction a or in the opposite direction of the first direction a. Then, the degree of freedom of the counting plate 9 to move in the first direction a or in the opposite direction of the first direction a is restricted by magnetic adsorption, so that the counting plate box 41 can be stably fixed on the counting plate box pushing mechanism 43.

[0073] Please see Figures 5-7The counting plate box pushing mechanism 43 also includes a fourth driving member 433, a fourth transmission assembly 434, and a fourth guide member 435. The fourth driving member 433 can be a motor, and the fourth guide member 435 can be a slide rail. The fourth driving member 433 and the fourth guide member 435 are mounted on the mounting bracket 42. The first counting plate box guide member 431 can be slidably connected to the fourth guide member 435 through a slider. The fourth driving member 433 drives the first counting plate box guide member 431 to move along the first direction a on the fourth guide member 435 through the fourth transmission assembly 434. The fourth transmission component 434 can be a screw drive assembly or similar structure. In this embodiment, the fourth transmission component 434 is a belt drive assembly, specifically including a third pulley 4341, a fourth pulley 4342, and an eighth belt 4343. The output shafts of the third pulley 4341 and the fourth drive component 433 are coaxially arranged. The fourth pulley 4342 is mounted on the mounting bracket 42. The eighth belt 4343 is sleeved on the third pulley 4341 and the fourth pulley 4342. The first counting plate box guide component 431 is connected to the eighth belt 4343 through a belt clamping structure. It can be understood that after all the counting plates 9 in the counting plate box 41 have been used, the counting plate box pushing mechanism 43 moves the counting plate box 41 in the opposite direction to the first direction a, so that the counting plate box 41 is reset to the initial position, so as to facilitate the operator to replace the counting plate box 41 and facilitate the next use.

[0074] Please see Figure 6 The mounting bracket 42 may be provided with a guide groove 421, which is used to guide the counting plate box 41 to slide in the first direction a. The slide 52 is provided on the mounting bracket 42, and the extension direction of the slide 52 is perpendicular to the first direction a, that is, parallel to the second direction b. The counting plate pushing device 5 includes a fifth driving member 53, a fifth transmission assembly 54, a fifth guide member 55, and a counting plate pusher 56. The fifth driving member 53 can be a motor, and the fifth guide member 55 can be a guide rail. The fifth driving member 53 and the fifth guide member 55 are provided on the mounting bracket 42. The counting plate pusher 56 can be slidably connected to the fifth guide member 55 through a slider. The fifth driving member 53 drives the counting plate pusher 56 to slide on the fifth guide member 55 through the fifth transmission assembly 54, so as to drive the counting plate 9 to slide on the slide 52.

[0075] Specifically, a first groove 521 is provided on the slide 52. A counting plate pusher clearance opening 522 may be provided at the bottom of the first groove 521. The width of the counting plate pusher clearance opening 522 is smaller than the width of the first groove 521 and smaller than the width of the counting plate 9 along the first direction a, thereby ensuring that the counting plate 9 is accommodated within the first groove 521. A portion of the counting plate pusher 56 is located within the counting plate pusher clearance opening 522. The portion of the counting plate pusher 56 extending into the counting plate pusher clearance opening 522 or the portion of the counting plate pusher 56 extending into the first groove 521 is used to abut against the counting plate 9.

[0076] In one implementation, please refer to Figure 16 The counting plate 9 may include a first base plate 4113 and a cover plate 92. The upper side of the first base plate 4113 is recessed to form an observation area 93. The cover plate 92 is detachably connected to the upper side of the first base plate 4113. The lower side of the first base plate 4113 is recessed to form a groove 918. The portion of the counting plate pusher 56 that extends into the counting plate pusher clearance opening 522 can abut against the groove 918, thereby driving the counting plate 9 to move.

[0077] In another implementation, please refer to Figure 9 In this embodiment, each first receiving cavity 411 is further provided with a second opening 417 at its bottom for the counting plate pusher 56 to pass through. The second opening 417 is disposed on the first side plate 4111, and the second opening 417 and the first opening 412 are directly opposite each other. The length of the second opening 417 along the first direction a is less than the length of the counting plate 9 along the first direction a, which ensures that the counting plate 9 will not be moved out of the first receiving cavity 411 through the second opening 417. At this time, the counting plate pusher 56 can abut against the side of the counting plate 9, thereby driving the counting plate 9 to move. Please refer to Figure 5 The counting plate pusher clearance opening 522 extends to the rear of the counting plate box 41 on the side away from the first opening 412, that is, it extends to the rear of the side of the first side plate 4111 on the side away from the second side plate 4112, so as to leave clearance space for the counting plate pusher.

[0078] Please see Figure 7 The counting plate pusher 56 includes a first connecting section 561 perpendicular to the horizontal plane, a second connecting section 562 parallel to the horizontal plane, and a clearance section 563 connecting the first connecting section 561 and the second connecting section 562. The clearance section 563 forms a non-right angle with the horizontal plane. The first connecting section 561 is slidably connected to the fifth guide member 55 via a slider. The second connecting section 562 is used to abut against the outer wall of the counting plate 9, thereby enabling the counting plate 9 to move. Furthermore, when the fifth driving member 53 drives the counting plate pusher 56 to move in the opposite direction to the second direction b, the clearance section 563 ensures that the counting plate pusher 56 can move to the rear of the counting plate box 41.

[0079] The fifth transmission component 54 can be a lead screw transmission component. In this embodiment, the fifth transmission component 54 is a belt transmission component, specifically including a fifth pulley 541, a sixth pulley 542 and a third belt 543. The fifth pulley 541 is connected to the fifth driving member 53, the sixth pulley 542 is mounted on the mounting bracket 42, and the third belt 543 is sleeved on the fifth pulley 541 and the sixth pulley 542.

[0080] Please see Figures 11-15The counting plate 9 has clearance grooves 911 on both sides of the observation area 93, which are spaced apart from the observation area 93. A slot 912 is provided on the side of the clearance groove 911 closest to the observation area 93. The cover plate 92 has slots 921 spaced apart for engaging with the slots 912. A notch 917 is provided on the second base plate 91. Through the action of the slots 912 and the slots 921, the second base plate 91 and the cover plate 92 are securely connected together, avoiding the use of glue to fix them. This prevents the glue from failing due to fluctuations in ambient temperature or humidity, or from flowing into the observation area 93 during assembly.

[0081] The upper part of the side of the clearance groove 911 near the observation area 93 is a first inclined surface 9111, which faces the cover plate 92. The upper side of the slot 912 is a second inclined surface 9121, which faces the bottom of the clearance groove 911. The connection between the first inclined surface 9111 and the second inclined surface 9121 is smoothly transitioned. The claw 921 includes a connecting part 9211 and a protrusion 9212. The connecting part 9211 is used to connect with the bottom surface of the cover plate 92, and the protrusion 9212 protrudes from the connecting part 9211. The upper and lower sides of the protrusion 9212 are both inclined surfaces, and the connection between the two inclined surfaces is smoothly transitioned. During installation, the first inclined surface 9111 and the lower side of the protrusion 9212 abut against each other to achieve a guiding function. After installation, since the second inclined surface 9121 and the upper side of the protrusion 9212 are inclined, the contact area of ​​the claw 921 and the slot 912 can be increased, ensuring the stable connection between the first base plate 4113 and the cover plate 92.

[0082] Each clearance groove 911 is further provided with a first limiting groove 913 between itself and the observation area 93. Limiting strips 922, which mate with the first limiting grooves 913, are spaced apart on the cover plate 92. The limiting strips 922 and the first limiting grooves 913 can be in clearance fit, meaning the width of the limiting strip 922 is less than the width of the first limiting groove 913. The structure between the first clearance grooves 911 and the first limiting grooves 913 is defined as a snap-fit. When the cover plate 92 and the second base plate 91 are connected, the lower side of the protrusion 9212 first abuts against the first inclined surface. At this time, the snap-fit ​​undergoes elastic deformation and has a directional... Figure 15 The latching member tends to rotate clockwise. After the latching claw 921 and the first limiting groove 913 are engaged, the limiting strip 922 allows the latching member to rotate counterclockwise and reset due to its setting. In addition, in scenarios such as transportation, if the cover plate 92 is subjected to an upward force, the latching member tends to rotate clockwise. At this time, due to the setting of the limiting strip 922, the limiting strip 922 will abut against the latching member, thereby restricting the rotation of the latching member. This maintains the connection between the cover plate 92 and the second base plate 91 and prevents the cover plate 92 from separating from the second base plate 91.

[0083] A second limiting groove 914 is also provided on the upper side of the second base plate 91. An avoidance groove 911 is located between the first limiting groove 913 and the second limiting groove 914. A limiting block 923 for connecting with the second limiting groove 914 is provided on one side of the cover plate 92. The limiting block 923 is integrally formed with the cover plate 92. The limiting block 923 and the second limiting groove 914 limit the extension direction of the cover plate 92 in the first limiting groove 913, ensuring that the cover plate 92 can be firmly fixed on the second base plate 91.

[0084] Each clearance groove 911 has at least a third inclined surface 9112 on the side away from the observation area 93. The inclined surface of the third inclined surface 9112 is set towards the cover plate 92, which increases the groove width at the opening of the clearance groove 911 to facilitate the connection between the claw 921 and the groove 912.

[0085] A mixing tank 915 may also be provided on the second base plate 91. The mixing tank 915 is spaced apart from the observation area 93 and is used to mix liquids. Specifically, the sample transfer device 8 can discharge the sample and reagents into the mixing tank 915 for mixing. After mixing is completed, the mixture is transferred to the observation area 93 for detection by the detection device 2.

[0086] The lower side of the cover plate 92 is also provided with a plurality of protrusions 924. The protrusions 924 are used to abut against the observation area 93 to support the cover plate 92 on the second base plate 91. The center of the cover plate 92 is not provided with a protrusion 924; that is, the plurality of protrusions 924 of the cover plate 92 form a circle or a square to avoid the protrusions 924 interfering with the detection device 2's detection of the observation area 93.

[0087] The sample storage device 6 can be in the form of a sample tray or similar structure. In this embodiment, the sample storage device 6 is an automatic sample loading device. For details, please refer to [link to relevant documentation]. Figure 17 It includes a base 61, a placement plate 62, a first sample rack pushing mechanism 63, a second sample rack pushing mechanism 64, a third sample rack pushing mechanism 65, and multiple support columns 66. One end of each support column 66 is connected to the base 61, and the other end is connected to the bottom of the placement plate 62, thereby creating an installation gap between the placement plate 62 and the base 61. The placement plate 62 is divided into three areas: an insertion area 621, a transfer area 622, and a recycling area 623. The insertion area 621 and the recycling area 623 are spaced apart. The outlet of the insertion area 621 is connected to the inlet of the transfer area 622, and the inlet of the recycling area 623 is connected to the outlet of the transfer area 622.

[0088] The placement area 621, transfer area 622, and recovery area 623 are used to place sample racks 67. Each sample rack 67 is provided with one or more test tube placement positions. Test tubes are placed in the test tube placement positions, and the test tubes contain samples. The samples can be human blood samples, urine samples, etc., depending on different testing needs.

[0089] The transfer area 622 may be provided with a barcode scanning position 6221 and a sample suction position 6222. The barcode scanning position 6221 is located between the sample suction position 6222 and the inlet of the transfer area 622, and the sample suction position 6222 is located between the barcode scanning position 6221 and the outlet of the transfer area 622. The barcode scanning position 6221 and the sample suction position 6222 can be any position on the transfer area 622. In this embodiment, the barcode scanning position 6221 is the position where the barcode scanning mechanism 69 scans the test tube, and the sample suction position 6222 is the position where the sample transfer device 8 draws the sample from the test tube. A barcode scanning mechanism 69 may be provided at the interval between the placement area 621 and the recovery area 623. It is used to scan and identify the barcode on the side wall of the test tube affixed to the sample holder 67 located at the barcode scanning position 6221, so that the urine analyzer can record the patient's information and make it correspond one-to-one with the test results. The sampling position 6222 is used for the pipette of the sample transfer device 8 to aspirate the sample from the test tube placed on the sample rack 67, so that the detection device 2 can detect the sample.

[0090] The first sample holder pushing mechanism 63 is located in the placement area 621 and is used to push the sample holder 67 in the placement area 621 into the entrance of the transfer area 622. The second sample holder pushing mechanism 64 is located in the transfer area 622 and is used to push the sample holder 67 at the entrance of the transfer area 622 to the barcode scanning position 6221 for scanning by the barcode scanning mechanism 69. Then, the scanned sample holder 67 is pushed to the aspiration position 6222 for the pipette of the analytical device to aspirate the sample. After the analytical device has aspirated the sample from the test tube on the sample holder 67, the second sample holder pushing mechanism 64 pushes the sample holder 67 to the exit of the transfer area 622. The third sample holder pushing mechanism 65 is located at the exit of the transfer area 622 and is used to push the sample holder 67 at the exit of the transfer area 622 into the recovery area 623.

[0091] Please see Figures 18-19 The sample rack 67 can be a rectangular structure, comprising a frame with multiple slots for placing test tubes, and a first sidewall of the frame (the first sidewall is one of two sidewalls at the width of the frame, corresponding to...). Figure 19 A guide groove 671 is provided on the right side wall of the guide groove 671. The two side walls of the guide groove 671 include a fourth inclined surface 6711 and a fifth inclined surface 6712, respectively. The connection between the fourth inclined surface 6711 and the fifth inclined surface 6712 protrudes into the guide groove 671.

[0092] First guide bars 624 are respectively provided on one side of the placement area 621 and the recycling area 623, as shown in the figure below. Figure 17 , 20 As shown, the first guide bar 624 has an L-shaped structure and is located on the right side of the placement area 621 and the recycling area 623, and is connected to the placement plate 62. The first guide bar 624 and the placement plate 62 can be formed by bending the same plate, or they can be two separate components connected together by welding or screws.

[0093] In use, the first guide bar 624 extends into the guide groove 671. Due to the arrangement of the fourth inclined surface 6711 and the fifth inclined surface 6712 within the guide groove 671, the contact area between the guide groove 671 and the first guide bar 624 is reduced, thereby reducing the frictional force generated by their contact and facilitating the movement of the first sample holder pushing mechanism 63. Simultaneously, it avoids uneven running resistance of the sample holder 67, preventing jamming or deviation, and ensuring the stability and positioning accuracy of sample introduction.

[0094] Please see Figures 18-19 The connection between the fourth inclined surface 6711 and the fifth inclined surface 6712 is smoothly transitioned, further reducing the sliding friction between the first guide bar 624 and the guide groove 671.

[0095] A second sidewall is perpendicular to the first sidewall on the frame (the second sidewall is one of two sidewalls along the length of the frame, corresponding to...). Figure 18 The posterior wall of the middle, Figure 19 Multiple separator strips 672 are spaced apart on the front sidewall of the sample holder 67. These separator strips 672 reduce friction between adjacent sample holders 67, facilitating the separation of the sample holder 67 located at the entrance of the transfer area 622 from adjacent sample holders by the second sample holder pushing mechanism 64. The upper part of the separator strip 672 is rectangular, and the lower part is triangular, thereby improving the stability of the separator strip 672 on the second sidewall of the sample holder 67. The extension length of the separator strip 672 is less than the height of the holder, meaning it does not extend beyond the entire height of the holder, ensuring reduced friction between adjacent sample holders 67.

[0096] The second side wall of the frame and the third side wall (front side wall) arranged parallel to the second side wall are provided with multiple weight-reducing grooves 673. Each group consists of two partition bars 672, and the two partition bars 672 in each group are separated by weight-reducing grooves 673 to reduce the weight of the sample rack 67, so as to facilitate the operation of the operator and facilitate the movement of the first sample rack pushing mechanism 63, the second sample rack pushing mechanism 64 and the third sample rack pushing mechanism 65. A third limiting step 674 is provided at the bottom of the second side wall of the frame, and a second guide bar 625 is provided on the transfer area 622. The second guide bar 625 is also L-shaped. In use, the inner side of the second guide bar 625 abuts against the side wall of the third limiting step 674 to prevent the sample rack 67 from tipping over when the second sample rack pushing mechanism 64 drives the sample rack 67 to move. There can be multiple second guide bars 625, which are spaced apart on the placement plate 62, and the distance between two adjacent second guide bars 625 is less than the length of the sample rack 67. This ensures that when the sample rack 67 moves within the transfer area 622, there is always a second guide bar 625 to limit the sample rack 67, and it can also reduce the manufacturing cost of the automatic sample feeding device.

[0097] Please see Figure 17 , 20 -21, the first sample rack pushing mechanism 63 may include a first mounting base 631, a first driving mechanism 632, a first pushing member 633, and an elastic member 634. The first driving mechanism 632, the first mounting base 631, and the elastic member 634 are located within the mounting gap formed between the placement plate 62 and the base 61. The first driving mechanism 632 and the first mounting base 631 are disposed on the base 61. The first mounting base 631 is slidably connected to the base 61, and the first driving mechanism 632 is drively connected to the first mounting base 631. The first driving mechanism 632 is used to drive the first mounting base 631 to move between a starting position (corresponding to the inlet of the placement area 621) and an ending position (corresponding to the outlet of the placement area 621). The first pushing member 633 is rotatably disposed on the first mounting base 631. The first pushing member 633 is provided with at least one sample rack pusher 6331. The side of the sample rack pusher 6331 facing the starting position is a sixth inclined surface 63311 facing away from the base 61. A limiting portion 6311 is provided on the first mounting base 631, which abuts against the side of the first pushing member 633 facing the starting position. An elastic member 634 is connected to both the first mounting base 631 and the first pushing member 633, and is used to cause the first pushing member 633 to abut against the limiting portion 6311. The elastic member 634 can be a spring, which drives the first pushing member 633 to rotate relative to the first mounting base 631 through its own elastic restoring force.

[0098] At least one sample rack push claw clearance opening 626 is provided at the position of the placement plate 62 corresponding to the placement area 621. The sample rack push claw 6331 provided on the first pusher 633 passes through the sample rack push claw clearance opening 626 and extends above the placement plate 62, that is, it is located in the placement area 621.

[0099] When the first drive mechanism 632 drives the first pusher 633 to move from the starting position to the ending position, during the movement, the sample holder pusher 6331 abuts against the third side wall of the sample holder 67 on the side facing the ending position. Thus, under the action of the first drive mechanism 632, the sample holder 67 is sequentially pushed to the entrance of the transfer area 622. At this time, the newly placed sample holder 67 in the placement area 621 is between the sample holder pusher 6331 and the starting position. This sample holder 67 will be pushed into the transfer area 622 by the first pusher 633 in the next pushing cycle.

[0100] When the first drive mechanism 632 moves the first pusher 633 from the end position to the starting position, the side of the sample holder pusher 6331 facing the starting position abuts against the second side wall of the sample holder 67 placed in the placement area 621 facing the analysis device. At this time, since the side of the sample holder pusher 6331 that abuts against the sample holder 67 is an inclined surface, and the first pusher 633 is rotatably connected to the first mounting base 631, the sample holder pusher 6331 will rotate into the gap between the placement plate 62 and the base 61, thereby avoiding the sample holder 67. At this time, the elastic member 634 is stretched. When the first drive mechanism 632 drives the sample rack pusher 6331 to the starting position or when the sample rack pusher 6331 is not in contact with the sample rack 67, the first pusher 633 rotates relative to the first mounting base 631 due to the elastic restoring force of the elastic member 634. At this time, the sample rack pusher 6331 will return to the top of the placement plate 62 so that it can push the subsequent sample rack 67 in the next pushing cycle.

[0101] The first mounting base 631 has a mounting groove 6312 with its opening facing the placement plate 62. A rotating shaft 6313 is disposed within the mounting groove 6312, and both ends of the rotating shaft 6313 are rotatably connected to the side walls of the mounting groove 6312. The first pushing member 633 and the rotating shaft 6313 are fixedly connected by means of screws, snap-fit, or interference fit. This allows for a rotatable connection between the first pushing member 633 and the first mounting base 631.

[0102] The side of the first mounting base 631 facing the endpoint includes an abutment surface, a connecting surface, and an arcuate surface. The connecting surface is located between the abutment surface and the arcuate surface. The abutment surface is a side perpendicular to the horizontal plane and is used to abut against the side of the first pusher 633 facing the starting position, thus forming a limiting part 6311 to limit the first pusher 633 in the direction of the starting position. The connecting surface is a side parallel to the horizontal plane, and the arcuate surface is used to avoid interfering with the rotation of the first pusher 633.

[0103] In this embodiment, the first pusher 633 has two sample rack pushers 6331, which are spaced apart on the first pusher 633. The connection point between the first pusher 633 and the rotating shaft 6313 is located between the two sample rack pushers 6331. Correspondingly, there are two sample rack pusher clearance openings 626, which are arranged one-to-one with the sample rack pushers 6331. Thus, when the first pusher 633 moves between the starting position and the ending position, the two sample rack pushers 6331 simultaneously abut against the sample rack 67 to prevent the sample rack 67 from shifting.

[0104] The first drive mechanism 632 includes a sixth drive member 6321, a sixth guide member 6322, and a sixth transmission assembly 6323. A second mounting member 611 is provided on the base 61. The second mounting member 611 can be a "U"-shaped mounting structure. The sixth guide member 6322 is located on top of the second mounting member 611. The first mounting seat 631 is slidably connected to the sixth guide member 6322. The sixth drive member 6321 is located on the first mounting seat 631. The sixth drive member 6321 drives the first mounting seat 631 to slide on the sixth guide member 6322 through the sixth transmission assembly 6323, thereby driving the first push member 633 to move between the starting position and the ending position. The sixth guide member 6322 can be a guide rail. Correspondingly, a slider is provided on the first mounting seat 631 to achieve a sliding connection.

[0105] The sixth transmission component 6323 can be a lead screw drive component. In this embodiment, the sixth transmission component 6323 is a belt drive component. Specifically, the sixth transmission component 6323 includes a seventh pulley 63231, an eighth pulley 63232, and a fourth belt 63233. A first mounting member 612 can also be provided on the base 61. The first mounting member 612 is a mounting plate structure. The seventh pulley 63231 is rotatably mounted on the first mounting member 612. The sixth driving component 6321 is a motor. The eighth pulley 63232 is coaxially mounted on the output shaft of the sixth driving component 6321. The fourth belt 63233 is sleeved on the seventh pulley 63231 and the eighth pulley 63232. The first mounting seat 631 is connected to the fourth belt 63233 through a belt clamping structure, so that when the sixth driving component 6321 drives the fourth belt 63233 to move, it can drive the first mounting seat 631 to move.

[0106] like Figures 20-21The sample storage device 6 provided in this embodiment further includes a handle 682 and two collection components 68; there can be two first mounting components 612, which are symmetrically arranged on both sides of the second mounting component 611, and a seventh pulley 63231 is arranged on one of the first mounting components 612. Each first mounting component 612 includes a first connecting plate 6121, a second connecting plate 6122, a first guide plate 6123, and a first limiting plate 6124. The first connecting plate 6121 is vertically arranged on the base 61, the lower surface of the second connecting plate 6122 is vertically arranged with the first connecting plate 6121, and the second connecting plate 6122 is parallel to the base 61. The first guide plate 6123 and the first limiting plate 6124 are vertically arranged on the upper surface of the second connecting plate 6122, the first limiting plate 6124 is arranged near the end position, and the first guide plate 6123 and the first limiting plate 6124 are vertically arranged.

[0107] Each collection component 68 corresponds to a first mounting component 612. The collection component 68 has a collection groove 681 for collecting dust and other debris that enters between the placement plate 62 and the base 61 from the sample rack pusher clearance opening 626, preventing dust and other debris from interfering with the normal operation of the first drive mechanism 632. The sample rack pusher 6331 is located between the sample rack pusher clearance opening 626 and the collection groove 681. The bottom surface of the collection component 68 is slidably connected to the upper surface of the second connecting plate 6122. A first guide plate 6123 guides the sliding of the collection component 68 on the second connecting plate 6122, and a limiting plate limits the end of the collection component 68 near its endpoint. A handle 682 connects two collection components 68, allowing simultaneous pulling of both collection components 68 for cleaning the collection groove 681.

[0108] A second guide plate 6125 is provided on the side of the first guide plate 6123 away from the first limiting plate 6124. The second guide plate 6125 is not parallel to the first guide plate 6123, and the opening formed by the second guide plates 6125 of the two first mounting members 612 faces the starting position, so that after the collecting member 68 is removed from the first mounting member 612, it can be easily placed onto the second connecting plate 6122 by the action of the second guide plate 6125. A second limiting plate 6126 is also provided on the upper side of the second guide plate 6125, which is used to limit the upper end of the collecting member 68.

[0109] Please see Figure 22The second sample holder pushing mechanism 64 includes a second pushing member 641, a seventh driving member 642, a seventh transmission assembly 643, and a seventh guide member 644. The seventh driving member 642 is a motor, which is mounted on the base 61. A third mounting member 613 is also mounted on the base 61. The third mounting member 613 is a mounting plate, which is positioned between the placement plate 62 and the base 61, and close to the analytical device. The seventh guide member 644 is a guide rail, which is mounted on the side of the third mounting member 613 near the analytical device. The second pushing member 641 includes a first bent portion 6411 and a second bent portion 6412, which are arranged vertically. A slider is provided on the inner side of the first bent portion 6411, which is slidably connected to the seventh guide member 644 via the slider. The first bent portion 6411 is also connected to the seventh transmission assembly 643. The second bent portion 6412 is located above the transfer area 622 and is used to abut against the first sidewall in the width direction of the sample holder 67. The seventh transmission assembly 643 is connected to the seventh driving member 642, thereby driving the second pushing member 641 to slide on the seventh guide member 644 via the seventh transmission assembly 643, so as to move the sample holder 67 in the transfer area 622 from the entrance of the transfer area 622 to the sampling position 6222, and then to the exit of the transfer area 622.

[0110] The seventh transmission assembly 643 can be a lead screw drive assembly. In this embodiment, the seventh transmission assembly 643 is a belt drive assembly. Specifically, the seventh transmission assembly 643 includes a ninth pulley 6431, a tenth pulley 6432, and a fifth belt 6433. The ninth pulley 6431 is mounted on the third mounting member 613, the tenth pulley 6432 is coaxially mounted on the output shaft of the seventh drive member 642, and the fifth belt 6433 is sleeved on the ninth pulley 6431 and the tenth pulley 6432. The first bent portion 6411 is connected to the fifth belt 6433 through a belt clamp, so that when the seventh drive member 642 drives the fifth belt 6433 to move, it can drive the second pusher 641 to move.

[0111] Please see Figure 23The third sample rack pushing mechanism 65 includes a third pushing member 651, an eighth driving member 652, an eighth transmission assembly 653, and an eighth guide member 654. The eighth driving member 652 is a motor, which is mounted on the base 61. The base 61 is also provided with a fourth mounting member 614, which is an L-shaped mounting plate structure. The fourth mounting member 614 is located between the placement plate 62 and the base 61, and is located directly below the recycling area 623 and the placement area 621. The eighth guide member 654 is a guide rail, which is located on the top of the fourth mounting member 614. The third pusher 651 includes a third bend 6511, a fourth bend 6512, and a fifth bend 6513. The fourth bend 6512 is located between the third bend 6511 and the fifth bend 6513, and is perpendicular to both the third bend 6511 and the fifth bend 6513. The third bend 6511 and the fifth bend 6513 form a clearance groove 911. A slider is provided on the third bend 6511, which is slidably connected to the eighth guide 654. The third bend 6511 is also connected to the eighth transmission assembly 653. The fifth bend 6513 is located above the outlet of the transfer area 622 and is used to abut against the second side wall of the sample holder 67 facing the analysis device. The fourth bend 6512 is located between the transfer area 622 and the analysis device. The eighth transmission assembly 653 is connected to the eighth drive member 652, so that the eighth drive member 652 drives the third push member 651 to slide on the eighth guide member 654 through the eighth transmission assembly 653, so as to move the sample rack 67 at the outlet of the transfer area 622 into the recovery area 623.

[0112] The eighth transmission assembly 653 can be a screw drive assembly. In this embodiment, the eighth transmission assembly 653 is a belt drive assembly. Specifically, the eighth transmission assembly 653 includes an eleventh pulley 6531, a twelfth pulley 6532, and a sixth belt 6533. The eleventh pulley 6531 is disposed on the third bend 6511 of the third mounting plate, the twelfth pulley 6532 is coaxially disposed on the output shaft of the eighth drive member 652, and the sixth belt 6533 is sleeved on the eleventh pulley 6531 and the twelfth pulley 6532. The third bend 6511 is connected to the sixth belt 6533 through a belt clamp, so that when the eighth drive member 652 drives the sixth belt 6533 to move, it can drive the third push member 651 to move.

[0113] Please see Figure 1 , 24-25, the rotating mechanism 693 may include a second mounting base 6932, a ninth driving member 6933, a ninth transmission assembly 6934, and a first transmission member 6935. The second mounting base 6932 is mounted on a second fixed bracket 691. The ninth driving member 6933, which may be a motor, is mounted on the second mounting base 6932. The first transmission member 6935 is rotatably connected to the second mounting base 6932. The second mounting base 6932 has a first clearance hole 69321 for the transmission shaft 695 to pass through. The first transmission member 6935 has a second clearance hole 6936 for the transmission shaft 695 to pass through. A sliding member 6931 is disposed within the second clearance hole 6936. The ninth driving member 6933 drives the first transmission member 6935 to rotate via the ninth transmission assembly 6934, thereby driving the transmission shaft 695 to rotate via the sliding member 6931 within the second clearance hole 6936. The sliding member 6931 can be a guide bar 69312 fixedly installed on the inner wall of the second clearance hole 6936.

[0114] In this embodiment, the first transmission member 6935 includes a first transmission member 6935A and a first transmission member 6935B, and the second clearance hole 6936 includes a second clearance hole 6936A, a second clearance hole 6936B, and a second clearance hole 6936C. The second clearance hole 6936A is disposed on the first transmission member 6935A, and the second clearance holes 6936B and 6936C are disposed on the first transmission member 6935B. The diameter of the second clearance hole 6936B is larger than the diameters of the second clearance holes 6936A and 6936C. A third limiting groove 693621 is provided on the side wall of the second clearance hole 6936B. The sliding member 6931 has a cylindrical structure and a third clearance hole 69311 for the transmission shaft 695 to pass through. A guide strip 69312 is provided on the inner wall of the third clearance hole 69311, which connects to the second slide groove 6951. A limiting member 69313 is provided on the outer surface of the sliding member 6931 for connection to the third limiting groove 693621. The limiting member 69313 can be a key. The first transmission member 6935A and the first transmission member 6935B are detachably connected, and the second clearance hole 6936B is located between the second clearance holes 6936A and 6936C to limit the sliding member 6931 within the second clearance hole 6936B. Specifically, the first transmission member 6935A and the first transmission member 6935B can each be provided with threaded holes, and then the two can be detachably connected by screws. The first transmission component 6935B is rotatably connected to the inner wall of the first clearance hole 69321 via a rolling bearing. The outer wall of the rolling bearing and the inner wall of the first clearance hole 69321 can be fixedly connected, thereby enabling the third fixing component 6945B to rotate only and preventing it from moving to one end.

[0115] The ninth transmission component 6934 can be a gear transmission component, and the corresponding first transmission member 6935A is a gear. In this embodiment, the ninth transmission component 6934 is a belt transmission component. Specifically, the ninth transmission component 6934 may include a thirteenth pulley 69341 and a seventh belt 69342. The first transmission member 6935A is a pulley structure, and the first transmission member 6935B is rotatably connected to the second mounting base 6932. The thirteenth pulley 69341 is connected to the ninth driving member 6933, and the seventh belt 69342 is sleeved on the thirteenth pulley 69341 and the first transmission member 6935A.

[0116] Please see Figure 24 The up-and-down moving mechanism 694 may include a tenth driving member 6941, a fourteenth pulley 6942, a fifteenth pulley 6943, a ninth belt 6944, and a third fixing member 6945. The tenth driving member 6941 may be a motor. The tenth driving member 6941 and the fourteenth pulley 6942 are mounted on the second fixed bracket 691. The fifteenth pulley 6943 is connected to the tenth driving member 6941. The ninth belt 6944 is sleeved on the fourteenth pulley 6942 and the fifteenth pulley 6943. The third fixing member 6945 is connected to the ninth belt 6944. The top end of the transmission shaft 695 is rotatably connected to the third fixing member 6945. Specifically, a belt clamping structure can be provided at the connection between the third fixing member 6945 and the second belt. A fixing hole can also be provided on the third fixing member 6945, and a rolling bearing is provided in the fixing hole. The rolling bearing is sleeved on the top end of the transmission shaft 695, so that the top end of the transmission shaft 695 can be rotatably connected to the third fixing member 6945.

[0117] Please see Figures 28-30 The clamping mechanism 696 includes a fixing component 6961, an eleventh driving component 6962, and two symmetrically arranged grippers 6963. The eleventh driving component 6962 can be a motor, which is mounted on the bottom end of the transmission shaft 695 via the fixing component 6961. The grippers 6963 are rotatably mounted on the fixing component 6961. The eleventh driving component 6962 drives the two grippers 6963 to move towards each other or away from each other. When the eleventh driving component 6962 drives the two grippers 6963 to move towards each other, the clamping mechanism 696 clamps the test tube; when the eleventh driving component 6962 drives the two grippers 6963 to move away from each other, the clamping mechanism 696 releases the test tube.

[0118] Each gripper 6963 may include a gear segment 69631, a connecting segment 69632, and a clamping segment 69633, with the connecting segment 69632 located between the gear segment 69631 and the clamping segment 69633. The gear segment 69631 of one gripper 6963 is connected to the output shaft of the eleventh drive member 6962 and meshes with the gear segment 69631 of the other gripper 6963. The clamping segment 69633 is provided with an arc-shaped structure that matches the shape of the test tube, thereby achieving the clamping of the test tube.

[0119] The fixing assembly 6961 may include a fourth fixing member 69611 and a fifth fixing member 69612; the bottom of the fourth fixing member 69611 may be provided with a second receiving cavity 696113, and the eleventh driving member 6962 is disposed on the outer side wall of the bottom of the fourth fixing member 69611, with its output shaft extending into the second receiving cavity 696113. The gear segments 69631 of the two grippers 6963 are located inside the second receiving cavity 696113, and the clamping segments 69633 are located outside the second receiving cavity 696113. The gear segment 69631 of one gripper 6963 is disposed on the output shaft of the eleventh driving member 6962, and the other gripper 6963 is rotatably connected to the inner side wall of the second receiving cavity 696113 through a rotating shaft 6313. The fourth fixing member 69611 has a limiting sleeve 696111 at its top, and a limiting hole 696112 on its side wall. The limiting sleeve 696111 is fitted onto the bottom end of the drive shaft 695. The fifth fixing member 69612 passes through the limiting hole 696112 and abuts against the drive shaft 695 to fix the fourth fixing member 696111 onto the drive shaft 695. The fifth fixing member 69612 can be a locating pin. The locating pin and the limiting hole 696112 are interference-fitted, and one end of the locating pin passes through the limiting hole 696112 and abuts against the outer side wall of the bottom end of the drive shaft 695, thereby fixing the limiting sleeve 696111 onto the bottom end of the drive shaft 695. The fifth fixing member 69612 can also be a screw, and the corresponding limiting hole 696112 is a threaded hole. The fifth fixing member 69612 is threadedly connected to the limiting hole 696112, and one end of it passes through the limiting hole 696112 and abuts against the outer wall of the drive shaft 695, thereby fixing the limiting sleeve 696111 to the bottom end of the drive shaft 695. Multiple limiting holes 696112 and fifth fixing members 69612 can be provided, and multiple limiting holes 696112 are arranged in a ring at intervals on the limiting sleeve 696111, thereby ensuring that the limiting sleeve 696111 can be fixed to the bottom end of the drive shaft 695.

[0120] The reagent storage device 7 can be a reagent tray or similar structure. In this embodiment, the reagent storage device 7 is a fixed base with reagent bottle receiving slots, which is mounted on the first mounting base 631. That is, one reagent bottle can be fixed at a time. Of course, multiple reagent bottle receiving slots can also be provided on the fixed base to accommodate multiple reagent bottles simultaneously.

[0121] The sample transfer module may include a pipette tip, a first pipette tip moving mechanism that moves the pipette tip along a first direction a and its opposite direction, and a second pipette tip moving mechanism that moves the pipette tip along a third direction c and its opposite direction. The second pipette tip moving mechanism is mounted on the first pipette tip moving mechanism, so that the movement of the first pipette tip simultaneously drives the movement of both the pipette tip and the second pipette tip moving mechanism. In use, through the action of the first and second pipette tip moving mechanisms, the pipette tip can aspirate samples at the aspiration position 6222 in the sample storage module and reagents in the reagent storage module, and discharge them into the mixing tank 915 of the counting plate 9. After being discharged into the mixing tank 915, the pipette tip repeats the aspiration and discharge action to mix the sample and reagents in the mixing tank 915. After mixing, the mixture in the mixing tank 915 is added to the observation area 93 of the counting plate 9 for detection by the detection device 2. Optionally, the aspiration tip can be an aspiration needle, or it can be a tip structure with a disposable needle attached externally. After adding a single sample, the disposable needle can be replaced to avoid cross-contamination between samples. The first aspiration tip moving mechanism and the first aspiration tip moving mechanism can be mechanisms formed by a motor, guide rail, and belt drive assembly, which are not limited in this embodiment.

[0122] In summary, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0123] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An automatic sample introduction device, characterized in that, include: Base, placement plate, multiple support columns, collection components, and first sample rack pushing mechanism; One end of the support column is connected to the base, and the other end is connected to the placement plate; the placement plate is provided with a placement area, a transfer area, and a recycling area; the bottom of the placement area is provided with a sample rack push claw clearance opening; The collection component and the first sample rack pushing mechanism are disposed on the base and located between the base and the placement plate; The first sample rack pushing mechanism includes a sample rack pusher for pushing the sample rack and a first driving mechanism for driving the sample rack pusher to move. The sample rack pusher passes through the sample rack pusher clearance opening and is located in the placement area. The collecting component and the first driving mechanism are spaced apart on the base. The collecting component is located below the sample rack push claw clearance opening, and the sample rack push claw portion is located between the sample rack push claw clearance opening and the collecting component. The collecting component is used to collect foreign objects that pass through the sample rack push claw clearance opening and enter between the base and the placement area.

2. The automatic sample feeding device according to claim 1, characterized in that: The sample rack push claw avoidance opening is two, and the two sample rack push claw avoidance openings are spaced apart on the bottom of the placement area; The sample rack pusher has two pushers, and each sample rack pusher corresponds to a sample rack pusher clearance opening. There are two collection components, and each collection component corresponds to one of the sample rack push claw clearance ports. The first drive mechanism is located between the two collection components.

3. The automatic sample feeding device according to claim 2, characterized in that: One end of each of the two collection components is connected by a handle.

4. An automatic sample feeding device according to claim 2, characterized in that: It also includes two first mounting members spaced apart on the base, and the collecting member is slidably connected to the first mounting members.

5. An automatic sample feeding device according to claim 4, characterized in that: The first mounting component includes a first connecting plate, a second connecting plate, a first guide plate, and a first limiting plate. The first connecting plate is vertically disposed on the base. The lower surface of the second connecting plate is perpendicular to the first connecting plate, and the second connecting plate is parallel to the base. The collecting component is slidably connected to the upper surface of the second connecting plate. The first guide plate and the second limiting plate are vertically disposed on the upper surface of the second connecting plate, and the first guide plate, the second limiting plate and the second connecting plate are perpendicular to each other.

6. An automatic sample feeding device according to claim 5, characterized in that: A second guide plate is provided on the side of the first guide plate away from the first limiting plate, and the second guide plate is not parallel to the first guide plate; And / or, a second limiting plate is also provided on the upper side of the second guide plate, and the second limiting plate is arranged parallel to the second connecting plate.

7. An automatic sample feeding device according to claim 1, characterized in that: The first sample holder pushing mechanism also includes a mounting base, a first pushing member, and an elastic member; The mounting base is disposed on the base and is slidably connected to the base; the first driving mechanism is drivenly connected to the mounting base and is used to drive the mounting base to move between a starting position and an ending position. The first pusher is rotatably mounted on the mounting base, and the sample holder pusher is mounted on the first pusher; The mounting base is provided with a limiting part, which is used to abut against the side of the first pusher facing the starting position; The elastic element is connected to the mounting base and the first pushing element respectively, and is used to make the first pushing element abut against the limiting part.

8. A sample holder pushing device according to claim 7, characterized in that: The first sample rack pushing mechanism also includes a rotating shaft, and the mounting base is provided with a mounting groove. The rotating shaft is rotatably connected to the side wall of the mounting groove, and the first pushing member is fixedly connected to the rotating shaft.

9. A sample holder pushing device according to claim 7, characterized in that: The elastic element is a spring; and / or, the first driving mechanism is a belt drive mechanism.

10. A urine analyzer, characterized in that, The sample rack pushing device as described in any one of claims 1-9 further includes: a reagent storage device, a sample transfer device, a detection device, and a counting plate; the sample transfer device is used to transfer the sample in the sample rack and the reagent stored in the reagent storage device to the counting plate, and the detection device is used to detect the mixture of sample and reagent on the counting plate.

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