Sample rack dispensing device and automatic analysis device

Abstract

The present invention discloses a sample rack dispensing device and an automatic analyzing device. The sample rack dispensing device includes a sample rack recovery platform, a sample rack buffer mechanism, and a sample rack recovery and pushing mechanism. The sample rack buffer mechanism is arranged on one side of the sample rack recovery platform and is used to carry the sample rack after sampling to the side of the sample rack recovery platform. The sample rack recovery and pushing mechanism is arranged above the path of the sample rack buffer mechanism and is used to push the sample rack after sampling on the sample rack buffer mechanism to the sample rack recovery platform.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a sample rack dispensing device and an automatic analyzing device. Background Art

[0002] Modern testing laboratories are becoming increasingly automated. Sample racks are fed into analytical instruments through a sample rack feed mechanism. Space is a premium in modern testing laboratories, leading to an increasing demand for miniaturized equipment. Traditional sample rack transfer devices are typically bulky, occupying significant space and space, and feature complex structures and limited functionality. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a sample rack dispensing device and an automatic analysis device to solve the problem in the prior art that the device occupies too large an area.

[0004] To solve the above problems, the present invention adopts the following solutions:

[0005] A sample rack dispensing device comprises a sample rack recovery platform, a sample rack buffer mechanism and a sample rack recovery and pushing mechanism; the sample rack buffer mechanism is arranged on one side of the sample rack recovery platform and is used to carry the sample rack after sampling to the side of the sample rack recovery platform; the sample rack recovery and pushing mechanism is arranged above the path of the sample rack buffer mechanism and is used to push the sample rack after sampling on the sample rack buffer mechanism to the sample rack recovery platform.

[0006] Furthermore, the sample rack recovery and propulsion mechanism includes a shift rod and a recovery and propulsion drive mechanism; the shift rod is arranged perpendicular to the sample rack cache mechanism; the top of the shift rod is installed on the recovery and propulsion drive mechanism, and the recovery and propulsion drive mechanism drives the shift rod to move back and forth above the path of the sample rack cache mechanism; a recovery channel is provided on the sample rack recovery platform; the path of the shift rod is aligned with the recovery channel on the sample rack recovery platform, and is used to push the sample rack after sampling on the sample rack cache mechanism to the recovery channel.

[0007] Furthermore, a guide bar is provided on the sample rack recovery platform at one end of the recovery channel; the guide bar is provided on one side of the entrance of the recovery channel.

[0008] Furthermore, an emergency injection platform is provided on one side of the recovery channel; and a horizontal pushing mechanism is provided between the sample rack recovery platform and the emergency injection platform for pushing the sample rack on the recovery channel or the emergency injection platform.

[0009] Furthermore, a sample rack conveying platform is provided on one side of the emergency injection platform; the sample rack buffer mechanism is provided on one side of the sample rack conveying platform, the emergency injection platform and the sample rack recovery platform, for moving between the platforms and mobilizing the sample racks between the platforms.

[0010] Furthermore, a longitudinal pushing mechanism is provided between the emergency sample injection platform and the sample rack conveying platform, for pushing the sample rack on the sample rack conveying platform or the emergency sample injection platform to the sample rack buffer mechanism.

[0011] Furthermore, the emergency sample rack output channel and the emergency sample rack injection channel are provided on the emergency sample rack platform; the emergency sample rack injection channel and the emergency sample rack output channel are arranged in parallel; the emergency sample rack injection channel and the emergency sample rack output channel extend in opposite directions; and the emergency sample rack output channel extends in a direction toward one side of the sample rack cache mechanism.

[0012] Furthermore, the emergency sample rack output channel and the emergency sample rack injection channel are adjacent to and arranged in parallel, and the emergency sample rack output channel and the emergency sample rack injection channel constitute an emergency sample rack transmission channel.

[0013] Furthermore, a sample rack output channel is provided on the sample rack conveying platform; the sample rack output channel is provided at one end close to the emergency sample rack output channel; the sample rack output channel is parallel to the emergency sample rack output channel and extends in the same direction; the longitudinal pushing mechanism is provided between the sample rack output channel and the emergency sample rack output channel, and is used to push the sample rack in the sample rack output channel or the emergency sample rack output channel to the sample rack cache mechanism.

[0014] Furthermore, a detection mechanism is provided on one side of the sample rack cache mechanism path.

[0015] An automatic analysis device comprises the sample rack distributing device described above.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention arranges the sample rack recovery and propulsion mechanism above the sample rack buffer mechanism path, which can reduce the volume and floor space of the entire device, making the entire device structure simple and preventing the sample rack recovery and propulsion mechanism from interfering with other structures in the horizontal direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a top view of the overall structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the longitudinal pushing mechanism of the present invention;

[0021] Figure 4 Schematic diagram of the sample rack recovery and propulsion mechanism of the present invention.

[0022] Reference numerals: 1-sample rack conveying platform; 2-vertical pushing mechanism; 3-emergency sample injection platform; 4-sample rack recovery platform; 5-sample rack recovery and pushing mechanism; 6-horizontal pushing mechanism; 7-sample rack buffer mechanism; 8-sample rack; 9-scanner; 10-transfer channel; 11-sample rack output channel; 12-pulling; 13-emergency sample rack output channel; 14-emergency sample rack injection channel; 15-push plate; 16-left push part; 17-right Side pushing part; 18-guide rail; 19-driving wheel; 20-transmission wheel; 21-slider; 22-fixed block; 23-fixed frame; 24-conveyor belt; 25-recovery guide groove; 26-recovery channel; 27-shift rod; 28-support rod; 29-crossbeam; 30-propulsion motor; 31-propulsion guide rail; 32-driving pulley; 33-transmission pulley; 34-mounting block; 35-propulsion slider; 36-transmission belt; 37-guide bar; 38-detection mechanism. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1-4 As shown, a sample rack dispensing device includes a sample rack conveying platform 1, a longitudinal pushing mechanism 2, an emergency sample injection platform 3, a sample rack recovery platform 4, a sample rack recovery propulsion mechanism 5, a horizontal pushing mechanism 6, a sample rack buffer mechanism 7, an optical coupler detector, a micro switch and a sample rack conveying mechanism.

[0025] The sample rack conveying platform 1, the emergency sampling platform 3, and the sample rack recovery platform 4 are arranged horizontally in sequence. A sample rack buffer mechanism 7 is disposed on one side of the sample rack conveying platform 1, the emergency sampling platform 3, and the sample rack recovery platform 4, and is used to move sample racks back and forth between the platforms and transfer them. A longitudinal pushing mechanism 2 is disposed between the emergency sampling platform 3 and the sample rack conveying platform 1, and is used to push sample racks 8 on the sample rack conveying platform 1 or the emergency sampling platform 3 to the sample rack buffer mechanism 7. In this embodiment, the longitudinal pushing mechanism 2 does not push sample racks on both the emergency sampling platform 3 and the sample rack conveying platform 1 simultaneously; each push by the longitudinal pushing mechanism 2 can only push sample racks on one of the platforms. A horizontal pushing mechanism 6 is disposed between the sample rack recovery platform 4 and the emergency sampling platform 3, and is used to push sample racks on either the sample rack recovery platform 4 or the emergency sampling platform 3. Similarly, in this embodiment, the horizontal pushing mechanism 6 does not push sample racks on both the sample rack recovery platform 4 and the emergency sampling platform 3 simultaneously; each push can only push sample racks on one of the platforms. The sample rack recovery and propulsion mechanism 5 is disposed above the path of the sample rack buffer mechanism 7 and is used to push the sample rack 8 after sampling from the sample rack buffer mechanism 7 to the sample rack recovery platform 4. The present invention disposes the sample rack recovery and propulsion mechanism 5 above the path of the sample rack buffer mechanism 7, which can reduce the volume and floor space of the entire device, making the entire device simpler in structure.

[0026] The sample rack conveyor mechanism transports the sample rack 8 placed on the sample rack conveyor platform 1 to the end of the sample rack conveyor platform 1. A longitudinal pushing mechanism 2, located at the end of the sample rack conveyor platform 1, pushes the sample rack 8 to the detection position of the scanner 9, where the scanner 9 scans and identifies the sample tubes in the sample rack 8 one by one. After all sample tubes have been scanned, the sample rack 8 is pushed by the longitudinal pushing mechanism 2 to the sample rack buffer mechanism 7. It is understood that the sample rack 8 is scanned while slowly moving toward the sample rack buffer mechanism 7 during the pushing process. A sample analyzer, located on one side of the sample rack buffer mechanism 7, extracts and tests samples from the sample rack buffer mechanism 7. In this embodiment, the sample analyzer is located on one side of the motion path of the sample rack buffer mechanism 7.

[0027] When emergency sampling is required, the longitudinal pushing mechanism 2 pushes the sample rack 8 placed on the emergency sampling platform 3 to the detection position of the scanner 9, so that the scanner 9 can scan and identify the sample tubes in the sample rack 8 one by one. After all the sample tubes are scanned, the emergency sample rack is pushed to the sample rack cache mechanism 7 by the longitudinal pushing mechanism 2.

[0028] After the above-mentioned injection and sampling are completed, the sample rack cache mechanism 7 carries the sampled ordinary sample rack and / or emergency sample rack to the side of the sample rack recovery platform 4; the sample rack recovery and pushing mechanism 5 pushes the sample rack 8 on the sample rack cache mechanism 7 to the sample rack recovery platform 4.

[0029] A sample rack conveying platform 1 is provided with a conveying channel 10, into which sample racks 8 are loaded and slidable. A sample rack output channel 11 is provided at the front end of the conveying channel 10. The sample rack output channel 11 is in communication with the conveying channel 10 and extends perpendicularly to the direction of the conveying channel 10. The sample rack conveying mechanism includes a prying gripper 12 and a prying gripper drive mechanism. The prying grippers 12 are provided on either side of the conveying channel 10, and a prying gripper drive mechanism (not shown) is provided at the bottom of the conveying channel 10. The prying gripper drive mechanism can drive the prying grippers 12 to move back and forth between the two sides of the conveying channel 10, thereby driving the sample rack 8 forward within the conveying channel 10 to the sample rack output channel 11 located in front of the longitudinal pushing mechanism 2. The longitudinal pushing mechanism 2 slowly moves the sample rack 8 within the sample rack output channel 11, scans it through a scanner 9, and then moves it to the sample rack buffer mechanism 7. The sample rack output channel 11 is provided at the end of the conveying channel 10 and in front of the longitudinal pushing mechanism 2.

[0030] The sample rack conveyor platform 1 is equipped with an optical coupler detector and a microswitch at the end of the sample rack output channel 11. The optical coupler detector is used to detect the presence of a sample rack on the sample rack conveyor platform 1 and, based on the detection signal, activates the grabber to push the sample rack on the sample rack conveyor platform 1. The microswitch is used to detect the presence of a sample rack 8 in the sample rack output channel 11 and, based on the detection signal, determines whether to activate the longitudinal push mechanism 2 to complete the sample rack 8 injection operation, thereby achieving automated injection. In this embodiment, the optical coupler detector is a through-beam optical coupler.

[0031] The emergency sample introduction platform 3 is positioned on a side corresponding to the front end of the sample rack transport platform 1. An emergency sample rack transport channel (not shown in the accompanying drawings in this embodiment) is provided on the emergency sample introduction platform 3. An emergency sample rack output channel 13 is positioned horizontally at the front end of the emergency sample rack transport channel, and an emergency sample rack introduction channel 14 is positioned horizontally at the rear end of the emergency sample rack transport channel. The emergency sample rack output channel 13 is positioned parallel to the sample rack output channel 11, and both are positioned forward of the longitudinal push mechanism 2, on either side of the longitudinal push mechanism 2's travel. The introduction end of the emergency sample rack introduction channel 14 is oriented in the opposite direction to the output end of the emergency sample rack output channel 13.

[0032] The longitudinal pushing mechanism 2 is arranged between the emergency sample rack output channel 13 and the sample rack output channel 11, and the scanner 9 is arranged on the side of the output end of the emergency sample rack output channel 13. The detection direction of the scanner 9 can simultaneously cover the output end of the emergency sample rack output channel 13 and the output end of the sample rack output channel 11, thereby realizing the scanning of the emergency sample rack injection and the ordinary sample rack injection. It is understandable that in other embodiments, the scanner 9 can also be arranged at other positions, as long as it can realize the scanning when the emergency sample rack is injected and the ordinary sample rack is injected. The longitudinal pushing mechanism 2 is arranged between the emergency sample rack output channel 13 and the sample rack output channel 11 to realize the separate injection of the emergency sample rack, avoid the emergency sample rack and the ordinary sample rack sharing the output channel, avoid the situation where injection confusion is easy to occur, improve the detection efficiency and reduce the detection error rate.

[0033] In this embodiment, the emergency sample rack output channel 13 and the emergency sample rack inlet channel 14 are arranged adjacent to and parallel to each other, forming the emergency sample rack transfer channel. The adjacent arrangement of the emergency sample rack output channel and the emergency sample rack inlet channel saves space and shortens the distance between the emergency sample rack inlet channel and the emergency sample rack output channel, preventing the emergency sample racks from tilting or falling during the pushing process.

[0034] In other embodiments, the emergency sample rack transfer channel can be set separately, and the horizontal distance of the emergency sample rack transfer channel can be set as needed, and it is ensured that the extension direction of the emergency sample rack output channel 13 and the extension direction of the emergency sample rack injection channel 14 are perpendicular to the emergency sample rack transfer channel, and the emergency sample rack output channel 13 and the emergency sample rack injection channel 14 are both connected to the emergency sample rack transfer channel.

[0035] A horizontal push mechanism 6 is provided on one side of the emergency sample rack inlet channel 14, for pushing the emergency sample rack being sampled through the emergency sample rack inlet channel 14 to the emergency sample rack output channel 13. A microswitch is provided at the end of the emergency sample rack inlet channel 14, away from the inlet end. When an emergency sample rack is inserted into the emergency sample rack inlet channel 14, it contacts the microswitch. Based on the contact signal from the microswitch, the mechanism detects the presence of a sample rack in the emergency sample rack inlet channel 14, activates the horizontal push mechanism 6, and pushes the emergency sample rack in the emergency sample rack inlet channel 14 to the emergency sample rack output channel 13.

[0036] The longitudinal pushing mechanism 2 includes a push plate 15 and a sample injection drive mechanism for driving the push plate back and forth. The push plate 15 includes a left push portion 16 and a right push portion 17. The left push portion 16 and the right push portion 17 are integrally formed. The left push portion 16 is located on the side of the emergency sample rack output channel 13 and is used to push the emergency sample rack in the emergency sample rack output channel 13 for sample injection. The right push portion 17 is located on the side of the sample rack output channel 11 and is used to push the conventional sample rack in the sample rack output channel 11 for sample injection. The specific working method is as follows: when a sample rack is injected into the emergency sample rack output channel 13 or the sample rack output channel 11, the sample injection drive mechanism drives the push plate 15 forward. The moving push plate 15 drives the sample rack in the emergency sample rack output channel 13 or the sample rack output channel 11 forward. After being scanned by the scanner 9, the sample rack moves to the sample rack buffer mechanism 7. The sample analyzer extracts the sample from the sample rack buffer mechanism 7 and performs testing.

[0037] In this embodiment, the sample injection drive mechanism includes a guide rail 18, a driving wheel 19, a transmission wheel 20, a slider 21, a fixed block 22, a fixed frame 23 and a drive motor. The guide rail 18 is arranged parallel to the emergency sample rack output channel 13 and the sample rack output channel 11, and is arranged between the two. The slider 21 is slidably mounted on the guide rail 18 and can slide back and forth along the guide rail. The fixed block 22 is fixedly mounted on the slider 21, the fixed frame 23 is mounted on the fixed block 22, the middle part of the push plate 15 is mounted on the top of the fixed frame 23, and the two sides of the push plate 15 form a left push part 16 and a right push part 17. A driving wheel 19 and a transmission wheel 20 are provided on one side of the guide rail 18; a conveyor belt 24 is provided between the driving wheel 19 and the transmission wheel 20, the fixed block 22 is fixed to the conveyor belt 24 by a clamping piece, and the driving wheel 19 is mounted on the output shaft of the drive motor. The driving motor drives the driving wheel 19 to rotate, and then drives the conveyor belt 24 between the driving wheel 19 and the conveyor wheel 20 to move back and forth. The sample injection drives the push plate 15 fixed on the fixed frame 23 to move back and forth along the guide rail. The push plate 15 moving back and forth drives the sample rack 8 in the emergency sample rack output channel or the sample rack output channel to inject samples.

[0038] The sample rack recovery platform 4 is arranged on the side of the horizontal pushing mechanism 6 away from the emergency sample rack injection channel 14. A recovery guide groove 25 is provided on the sample rack recovery platform 4. A recovery channel 26 is provided at one end of the recovery guide groove 25 close to the horizontal pushing mechanism 6. The extension direction of the recovery channel 26 is perpendicular to the recovery guide groove 25. The sample rack recovery platform 4, the emergency injection platform 3 and the mounting platform of the horizontal pushing mechanism 6 can be an integral structure or can be arranged separately. The present invention arranges the horizontal pushing mechanism 6 between the sample rack recovery platform 4 and the emergency injection platform 3, so that the horizontal pushing mechanism 6 can push the sample rack on the sample rack recovery platform 4 and the sample rack 8 of the emergency injection platform 3. The same structure realizes multiple functions, which can not only improve the detection efficiency but also reduce the volume and cost of the entire mechanism.

[0039] In this embodiment, the horizontal pushing mechanism 6 can push the sample rack 8 on both the sample rack recovery platform 4 and the emergency sampling platform 3, allowing the same structure to accomplish the sample rack pushing function for different platforms. In other embodiments, separate pushing mechanisms can be configured at the ends of the emergency sampling platform 3 and the sample rack recovery platform 4, respectively, to accomplish the sample rack 8 pushing task for each platform.

[0040] The sample rack conveying platform 1, the emergency sampling platform 3, and the sample rack recovery platform 4 are arranged on the same horizontal line; the sample rack buffer mechanism 7 is arranged on one side of the above-mentioned platforms and is used to move between the platforms to receive the sample rack 8 output from the sample rack conveying platform 1 or the emergency sampling platform 3 to complete sample injection or carry the sample rack 8 after sampling by the sample analyzer to the side of the sample rack recovery platform 4. The sample rack recovery and pushing mechanism 5 pushes the sample rack 8 after sampling from the sample rack buffer mechanism 7 into the recovery channel 26, and finally pushes it to the recovery guide groove 25 by the horizontal pushing mechanism 6.

[0041] In this embodiment, the sample rack recovery and propulsion mechanism 5 is disposed above the path of the sample rack cache mechanism 7 on the side of the sample inlet end of the recovery channel 26. The sample rack recovery and propulsion mechanism 5 includes a lever 27 and a recovery and propulsion drive mechanism. The lever 27 is disposed perpendicular to the sample rack cache mechanism 7. The lever 27 is mounted on the recovery and propulsion drive mechanism and is driven by the recovery and propulsion drive mechanism to move the lever 27 back and forth above the path of the sample rack cache mechanism 7. The back-and-forth movement path of the lever 27 is aligned with the recovery channel 26 on the sample rack recovery platform 4 and is used to push the sample rack after sampling from the sample rack cache mechanism 7 to the recovery channel 26. The path of the lever 27 is perpendicular to the path of the sample rack cache mechanism 7, and the distance between the bottom of the lever 27 and the plane of the sample rack cache mechanism 7 is less than the height of the sample rack 8, ensuring that the lever 27 is sufficient to push the sample rack 8.

[0042] The recovery propulsion drive mechanism includes support rods 28 mounted on either side of the sample rack buffer mechanism 7 path and a crossbeam 29 mounted on the support rods 28. The crossbeam 29 is equipped with a propulsion motor 30, a propulsion guide rail 31, a driving pulley 32, a transmission pulley 33, a mounting block 34, and a propulsion slider 35. The driving pulleys 32 and 33 are mounted horizontally at both ends of the crossbeam 29. A transmission belt 36 is disposed between the driving pulleys 32 and 33. The propulsion guide rail 31 is mounted parallel to the transmission belt 36 on the crossbeam 29. The propulsion slider 35 is slidably mounted on the propulsion guide rail 31, and the mounting block 34 is mounted on the propulsion slider 35. The mounting block 34 is fixed to the transmission belt 36 via a belt clamp. The top of the shift lever 27 is mounted on the mounting block 34. The driving pulley 32 is mounted on the output shaft of the propulsion motor 30. The propulsion motor 30 drives the transmission belt 36 back and forth, thereby driving the slider 35 and the shift lever 27 back and forth along the propulsion guide rail 31. The sample rack 8 after sampling is pushed by the sample rack buffer mechanism 7 into the recovery channel 26 by the push rod 27 that moves back and forth above the path of the sample rack buffer mechanism 7 .

[0043] Furthermore, a guide bar 37 is provided on the sample rack recovery platform 4 at one end of the recovery channel 26; the guide bar 37 is provided on one side of the entrance of the recovery channel 26, and the guide bar 37 can stabilize the direction and guide the sample tube 8 pushed into the recovery guide groove 25 by the horizontal pushing mechanism 6, thereby preventing the sample tube 8 from being unstable or tilted when pushed by the horizontal pushing mechanism 6.

[0044] Furthermore, a detection mechanism 38 is provided on one side of the path of the sample rack cache mechanism 7. When the sample rack dispensing device is powered off and restarted, it is impossible to confirm whether a sample rack 8 is present on the sample rack cache mechanism 7. Therefore, the detection mechanism 38 can detect each sample rack 8 on the sample rack cache mechanism 7 one by one, thus preventing sample detection confusion during the power-off and restart. The detection mechanism can be a slow-reflection detection mechanism, a through-beam optical coupler, or other suitable mechanism. Furthermore, the detection mechanism 38 can also be mounted directly on the sample rack cache mechanism 7.

[0045] The present invention also discloses an automatic analysis device, comprising the sample rack distributing device described above.

[0046] The present invention addresses the need for high-volume sample retesting through a sample rack caching mechanism, reducing the need for cuvette retesting while also eliminating the need for internal instrument cache slots, reducing instrument size, and improving operating speed. The present invention automatically delivers sample racks containing sample tubes to a sample aspiration station for aspiration upon user request. Upon completion of testing, the tested samples are transported to a sample rack recovery platform for user retrieval. It also implements functions such as emergency priority and retest caching.

[0047] The emergency channel of the present invention is set up. When the user places the sample rack in the channel and clicks the emergency option on the instrument interface, the track will give priority to pushing the channel sample rack into the instrument and giving priority to absorbing the emergency sample; the sample rack cache mechanism of the present invention can temporarily store multiple groups of sample racks inside the instrument. After the test is completed, if the instrument receives an instruction to retest a certain sample, the track will automatically transport the sample on the sample rack to the absorption position for re-absorption and testing. If retesting is required multiple times, the sample rack will be automatically pushed out after the last retest is completed.

[0048] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A sample rack dispensing device, characterized in that: The sample rack recovery platform comprises a sample rack retrieval platform, a sample rack buffer mechanism and a sample rack retrieval pushing mechanism; the sample rack retrieval mechanism is arranged on one side of the sample rack retrieval platform, and is used to carry the sample rack after sampling to one side of the sample rack retrieval platform; the sample rack retrieval pushing mechanism is arranged above the path of the sample rack buffer mechanism, and is used to push the sample rack after sampling on the sample rack buffer mechanism to the sample rack retrieval platform; the sample rack retrieval pushing mechanism comprises a shifting rod and a recovery pushing driving mechanism; the shifting rod is arranged perpendicular to the sample rack buffer mechanism; the top of the shifting rod is installed on the recovery pushing driving mechanism, and the shifting rod is driven by the recovery pushing driving mechanism to move back and forth above the path of the sample rack buffer mechanism; a recovery channel is provided on the sample rack retrieval platform; the path of the shifting rod is aligned with the sample rack retrieval mechanism The recovery channel on the rack recovery platform is aligned and is used to push the sample rack after sampling on the sample rack cache mechanism to the recovery channel; an emergency sampling platform is provided on one side of the recovery channel; a horizontal pushing mechanism is provided between the sample rack recovery platform and the emergency sampling platform, for pushing the sample rack on the recovery channel or the emergency sampling platform; a sample rack conveying platform is provided on one side of the emergency sampling platform; the sample rack cache mechanism is provided on one side of the sample rack conveying platform, the emergency sampling platform and the sample rack recovery platform, for moving between the platforms and mobilizing the sample racks between the platforms; a longitudinal pushing mechanism is provided between the emergency sampling platform and the sample rack conveying platform, for pushing the sample rack on the sample rack conveying platform or the emergency sampling platform to the sample rack cache mechanism.

2. The sample rack dispensing device according to claim 1, characterized in that: A guide bar is provided on the sample rack recovery platform at one end of the recovery channel; the guide bar is provided on one side of the entrance of the recovery channel.

3. The sample rack dispensing device according to claim 1, characterized in that: The emergency sample rack output channel and the emergency sample rack injection channel are provided on the emergency sample rack platform; the emergency sample rack injection channel is arranged in parallel with the emergency sample rack output channel; the emergency sample rack injection channel and the emergency sample rack output channel extend in opposite directions; and the emergency sample rack output channel extends toward one side of the sample rack cache mechanism.

4. The sample rack dispensing device according to claim 3, characterized in that: The emergency sample rack output channel is adjacent to and parallel to the emergency sample rack injection channel, and the emergency sample rack output channel and the emergency sample rack injection channel constitute an emergency sample rack transmission channel.

5. The sample rack dispensing device according to claim 3, characterized in that: The sample rack conveying platform is provided with a sample rack output channel; the sample rack output channel is provided at one end close to the emergency sample rack output channel; the sample rack output channel is parallel to the emergency sample rack output channel and extends in the same direction; the longitudinal pushing mechanism is provided between the sample rack output channel and the emergency sample rack output channel, and is used to push the sample rack in the sample rack output channel or the emergency sample rack output channel to the sample rack buffer mechanism.

6. The sample rack dispensing device according to claim 1, characterized in that: A detection mechanism is also provided on one side of the sample rack cache mechanism path.

7. An automatic analysis device, characterized in that The sample rack dispensing device comprises the sample rack dispensing device according to any one of claims 1 to 6.

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