A cascadable sample rack transmission device

Abstract

The present invention discloses a cascading sample rack transmission device, comprising: a bottom plate, a supporting plate arranged above the bottom plate, a turning component, a sample loading component, a feeding component, a sample discharging component, a cascading conveying component, a sample rack detection system, a first information reading component, and a second information reading component; the supporting plate is divided into: a sample loading area, a sample discharging area, a feeding area, and a cascading conveying area; the sample loading area is arranged on one side of the front area, the feeding area is arranged on one side of the sample discharging area, and the sample discharging area is arranged on one side of the rear area. The sample rack is transmitted from the upper-level instrument to the cascading conveying area, and the first information reading component reads the information of the sample rack to determine whether the sample in the sample rack needs to be detected on this machine; if it needs to be detected on this machine, the turning component pushes the sample rack to the sample loading area, and the sample rack will be conveyed to the feeding area for sampling and testing. After the sampling and testing, the sample rack enters the sample discharging area, and finally enters the rear area and then leaves this machine.

Description

Technical Field

[0001] The present invention relates to the technical field of in vitro detection, and particularly to a cascading sample rack transmission device. Background Art

[0002] In in vitro diagnostic instruments, it is often necessary to place samples in different instruments for testing different items. If manual handling is used to transfer samples, not only is the efficiency low, but there is also a high risk of biological contamination. To improve work efficiency and reduce the risk of biological contamination, an automated assembly-line sample transportation method has become the current development trend of sample transmission technology. Currently, most of the assembly-line sample conveying devices on the market mainly use multi-track and conveyor belt transmission. This method has a high degree of automation but occupies a large space and has a high cost, and is suitable for large and extra-large hospitals or testing institutions. To meet the needs of small and medium-sized hospitals and testing institutions, there is an urgent need for a sample rack conveying device that occupies less space and has a low cost.

[0003] Therefore, the prior art has defects and needs to be improved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a cascading sample rack transmission device that meets the requirements of small and medium-sized hospitals and testing institutions for a sample rack conveying device that occupies less space and has a low cost.

[0005] The technical solution of the present invention is as follows: A cascading sample rack transmission device is provided, including: a bottom plate, a support plate arranged above the bottom plate, a turning component, a sample loading component, a feeding component, a sample unloading component, a cascading conveying component, a sample rack detection system, a first information reading component, and a second information reading component; the support plate is divided into: a sample loading area, a sample unloading area, a feeding area, and a cascading conveying area, and the cascading conveying area is divided into: a transition area, a front area, a middle area, and a rear area, and the transition area, the front area, the middle area, and the rear area are connected in sequence; the sample loading area is arranged on one side of the front area, the feeding area is arranged on one side of the sample unloading area, and the sample unloading area is arranged on one side of the rear area; a plurality of first movable slots are arranged in the cascading conveying area, a plurality of first movable paddles are arranged on the cascading conveying component, and the first movable paddles pass through the first movable slots; a plurality of second movable slots are arranged in the sample loading area, a plurality of second movable paddles are arranged on the sample loading component, and the second movable paddles pass through the second movable slots; a plurality of third movable slots are arranged in the feeding area, a plurality of third movable paddles are arranged on the feeding component, and the third movable paddles pass through the third movable slots; a plurality of fourth movable slots are arranged in the sample unloading area, a plurality of fourth movable paddles are arranged on the sample unloading component, and the fourth movable paddles pass through the fourth movable slots; the first information reading component is arranged on one side of the sample loading area, and the second information reading component is arranged on one side of the feeding area; the front area is arranged between the turning component and the sample loading area.

[0006] The turning component includes: a turning drive mechanism and a turning transmission mechanism; the turning drive mechanism mainly includes: a motor mounting plate installed on the bottom plate, a turning motor installed on the motor mounting plate, and a turning pulley connected to the output shaft of the turning motor; the turning transmission mechanism includes: a rotating shaft fixing plate installed on the bottom plate, a turning rotating shaft installed on the rotating shaft fixing plate, and a turning block fixedly connected to the turning rotating shaft; the turning pulley drives the turning rotating shaft to rotate through a belt.

[0007] The turning transmission mechanism further includes: a turning optocoupler bracket installed on the rotating shaft fixing plate, a turning optocoupler sensor installed on the turning optocoupler bracket, and a turning optocoupler shutter fixedly connected to the turning block; the turning optocoupler bracket is provided with a limiting edge for restricting the turning of the turning block within a range of 90 degrees, and the moving range of the turning optocoupler shutter overlaps with the sensing area of the turning optocoupler sensor.

[0008] The cascading conveying component includes: a cascading mounting plate installed on the bottom plate, a cascading motor, a cascading driven wheel, a cascading guiding mechanism respectively installed on the cascading mounting plate, a cascading driving wheel connected to the output shaft of the cascading motor, a first paddle bracket installed on the cascading guiding mechanism, a cascading limiting screw installed on the first paddle bracket, and a cascading transmission belt respectively connected to the cascading driving wheel and the cascading driven wheel; the first paddle bracket is fixedly connected to the cascading transmission belt, and the first movable paddle is connected to the first paddle bracket through a rotating shaft; the cascading limiting screw is arranged on one side of the first movable paddle.

[0009] The cascading guiding mechanism includes: two cascading guide rod fixing blocks fixed on the cascading mounting plate, a cascading guide rod with both ends respectively connected to the two cascading guide rod fixing blocks, a cascading sliding sleeve sleeved on the cascading guide rod, and a cascading sliding block installed on the cascading sliding sleeve; the first paddle bracket is installed on the cascading sliding block.

[0010] The cascading conveying component further includes: a cascading optocoupler sensor installed on the cascading mounting plate, and a cascading optocoupler shutter installed on the cascading sliding block, and the moving range of the cascading optocoupler shutter overlaps with the sensing area of the cascading optocoupler sensor.

[0011] The cascading conveying component further includes: a guiding bracket installed on the first paddle bracket, a guiding paddle and a guiding limiting screw respectively arranged on the guiding bracket; a guiding groove is arranged between the cascading conveying area and the sample injection area, the guiding paddle passes through the guiding groove, the guiding paddle is installed on the guiding bracket through a rotating shaft, and the guiding paddle is arranged on one side of the guiding limiting screw.

[0012] The sample injection assembly includes: a sample injection mounting plate installed on the base plate, a sample injection motor, a sample injection driven wheel, and a sample injection guiding mechanism respectively installed on the sample injection mounting plate, a sample injection driving wheel connected to the output shaft of the sample injection motor, a second paddle support installed on the sample injection guiding mechanism, a sample injection limit screw installed on the second paddle support, and a sample injection transmission belt respectively connected to the sample injection driving wheel and the sample injection driven wheel; the second paddle support is fixedly connected to the sample injection transmission belt, and the second movable paddle is connected to the second paddle support through a rotating shaft; the sample injection limit screw is arranged on one side of the second movable paddle.

[0013] The sample injection guiding mechanism includes: two sample injection guide rod fixing blocks fixed on the sample injection mounting plate, a sample injection guide rod with two ends respectively connected to the two sample injection guide rod fixing blocks, a sample injection sliding sleeve sleeved on the sample injection guide rod, a sample injection sliding block installed on the sample injection sliding sleeve, and the second paddle support is installed on the sample injection sliding block.

[0014] The sample injection assembly further includes: a sample injection opto-coupler sensor installed on the sample injection mounting plate, and a sample injection opto-coupler baffle installed on the sample injection sliding block, and the moving range of the sample injection opto-coupler baffle overlaps with the sensing area of the sample injection opto-coupler sensor.

[0015] The feeding assembly includes: a feeding mounting plate installed on the base plate, a feeding motor, a feeding driven wheel, and a feeding guiding mechanism respectively installed on the feeding mounting plate, a feeding driving wheel connected to the output shaft of the feeding motor, a third paddle support installed on the feeding guiding mechanism, a feeding limit screw installed on the third paddle support, and a feeding transmission belt respectively connected to the feeding driving wheel and the feeding driven wheel; the third paddle support is fixedly connected to the feeding transmission belt, and the third movable paddle is connected to the third paddle support through a rotating shaft; the feeding limit screw is arranged on one side of the third movable paddle.

[0016] The feeding guiding mechanism includes: a feeding guide rail fixed on the feeding mounting plate, a feeding sliding block sleeved on the feeding guide rail, and the third paddle support is installed on the feeding sliding block.

[0017] The feeding assembly further includes: a feeding opto-coupler sensor installed on the feeding mounting plate, and a feeding opto-coupler baffle installed on the third paddle support, and the moving range of the feeding opto-coupler baffle overlaps with the sensing area of the feeding opto-coupler sensor.

[0018] The sample output assembly includes: a sample output mounting plate mounted on the base plate, a sample output motor, a sample output driven wheel, and a sample output guiding mechanism respectively mounted on the sample output mounting plate, a sample output driving wheel connected to the output shaft of the sample output motor, a fourth paddle bracket mounted on the sample output guiding mechanism, a sample output limit screw mounted on the fourth paddle bracket, and a sample output transmission belt respectively connected to the sample output driving wheel and the sample output driven wheel; the fourth paddle bracket is fixedly connected to the sample output transmission belt, and the fourth movable paddle is connected to the fourth paddle bracket through a rotating shaft; the sample output limit screw is arranged on one side of the fourth movable paddle.

[0019] The sample output guiding mechanism includes: two sample output guide rod fixing blocks fixed on the sample output mounting plate, a sample output guide rod with two ends respectively connected to the two sample output guide rod fixing blocks, a sample output sliding sleeve sleeved on the sample output guide rod, a sample output sliding block mounted on the sample output sliding sleeve, and the fourth paddle bracket is mounted on the sample output sliding block.

[0020] The sample output assembly further includes: a sample output optocoupler sensor mounted on the sample output mounting plate, and a sample output optocoupler baffle mounted on the sample output sliding block, and the moving range of the sample output optocoupler baffle overlaps with the sensing area of the sample output optocoupler sensor.

[0021] The cascadable sample rack transmission device further includes: a positioning assembly arranged on one side of the feeding area; the positioning assembly includes: a positioning bracket, a sample rack limiting mechanism, a sample rack stopper, and a test tube top tube mechanism respectively mounted on the positioning bracket; the sample rack limiting mechanism includes: a limiting wheel, a limiting rotating shaft, a limiting elastic member, a first limiting horizontal shaft, a second limiting horizontal shaft, a limiting horizontal shaft fixing block, and a limiting optocoupler sensor; the first limiting horizontal shaft and the second limiting horizontal shaft are fixedly connected to the limiting horizontal shaft fixing block, the limiting rotating shaft is rotatably connected to the second limiting horizontal shaft, the limiting wheel is sleeved on the limiting rotating shaft, one end of the limiting elastic member is lapped with the limiting rotating shaft and the other end is lapped with the first limiting horizontal shaft, the limiting optocoupler sensor is fixedly connected to the positioning bracket, and the moving range of the limiting rotating shaft overlaps with the sensing area of the limiting optocoupler sensor.

[0022] The test tube top tube mechanism includes: a top tube bracket fixed on the sample rack stopper, a top tube shaft, and a top tube elastic member, the top tube bracket is provided with a front vertical plate and a rear vertical plate, the top tube shaft includes an umbrella-shaped shaft end, a shaft body connected to the umbrella-shaped shaft end, and a shaft shoulder arranged on the shaft body, the shaft body passes through the front vertical plate and the rear vertical plate, the shaft shoulder is arranged between the front vertical plate and the rear vertical plate, the top tube elastic member is sleeved on the shaft body, and two ends of the top tube elastic member are respectively in contact with the rear vertical plate and the shaft shoulder, and the front vertical plate is arranged between the shaft shoulder and the umbrella-shaped shaft end.

[0023] A sample rack limiting mechanism is arranged on one side of the transition area.

[0024] The sample rack detection system includes: a transition optocoupler sensor disposed on one side of the transition zone, a front optocoupler sensor disposed on one side of the front zone, a middle optocoupler sensor disposed on one side of the middle zone, a rear optocoupler sensor disposed on one side of the rear zone, a sample injection detection optocoupler sensor disposed on one side of the sample injection zone, a sample ejection detection optocoupler sensor disposed on one side of the sample ejection zone, and a feeding detection optocoupler sensor disposed on one side of the feeding zone.

[0025] The cascadable sample rack transmission device further includes: an emergency sample addition mechanism installed on the pallet, the emergency sample addition mechanism being disposed between the sample injection zone, the sample ejection zone, the feeding zone, and the cascading conveying zone; the emergency sample addition mechanism includes: a support frame, a support seat installed on the support frame and provided with a moving groove, a position optocoupler sensor installed on the support frame, a sample seat disposed in the moving groove, a detection optocoupler sensor installed in the sample seat, and a position optocoupler baffle connected to the sample seat; the sample seat is provided with a sample placement groove, and the detection optocoupler sensor faces the sample placement groove; the sensing area of the position optocoupler sensor overlaps with the moving range of the position optocoupler baffle; a guiding chute is disposed in the moving groove, and the sample seat is provided with a guiding slider, and the guiding slider is matched with the guiding chute; the second information reading component is installed on the support seat.

[0026] The cascadable sample rack transmission device further includes: a handle connected to the sample seat, the handle being disposed above the support seat.

[0027] The cascadable sample rack transmission device further includes: a left cover plate, a right cover plate, and a test tube baffle respectively installed on the support seat.

[0028] A first magnet is disposed at one end of the moving groove, a second magnet is disposed on the side surface of the sample seat facing the first magnet, and the first magnet and the second magnet attract each other; alternatively, a magnet is disposed at one end of the moving groove, and an iron sheet is disposed on the side surface of the sample seat facing the magnet; alternatively, an iron sheet is disposed at one end of the moving groove, and a magnet is disposed on the side surface of the sample seat facing the iron sheet.

[0029] The position optocoupler sensor is disposed below the support seat, the position optocoupler baffle is connected to the lower end of the sample seat, and the support frame is provided with a first long hole, and the position optocoupler baffle passes through the first long hole.

[0030] The support frame is provided with a second long hole, a wire pressing plate is connected to the bottom of the sample seat, and the wire pressing plate is disposed in the second long hole.

[0031] The first information reading component and the second information reading component are both RFID reading modules. The RFID reading module includes: an RFID card, a mounting plate, a protective cover, and an insulating ring; the RFID card is mounted on the mounting plate through the insulating ring, and the protective cover covers the RFID card and is connected to the mounting plate.

[0032] With the above solution, the present invention provides a cascading sample rack transmission device. The sample rack is transmitted from the upper-level instrument to the front area. The first information reading component reads the information of the sample rack to determine whether the sample in the sample rack needs to be detected on this machine. If it does not need to be detected, the cascading conveying component conveys the sample rack to the middle area and finally transports it to the rear area, and then leaves this machine; if it needs to be detected on this machine, the turning component pushes the sample rack to the sampling area, and the sample rack will be conveyed to the feeding area for sampling and testing. After sampling and testing, the sample rack enters the sample output area, and finally enters the rear area and then leaves this machine. The cascading sample rack transmission device greatly reduces the occupied space, has a simple structure and low cost, and can fully meet the needs of small and medium-sized hospitals and testing institutions for a sample rack transmission device with a smaller occupied space and lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 and Figure 2 is a schematic structural diagram of an embodiment of the present invention;

[0034] Figure 3 is a schematic structural diagram of a test tube rack in an embodiment of the present invention;

[0035] Figure 4 and Figure 5 is a schematic internal structure diagram of the present invention with the internal structure removed;

[0036] Figure 6 is a schematic structural diagram of a pallet;

[0037] Figure 7 and Figure 8 is a schematic structural diagram of a turning component;

[0038] Figure 9 and Figure 10 is a schematic structural diagram of a cascading conveying component;

[0039] Figure 11 and Figure 12 is a schematic structural diagram of a sampling component;

[0040] Figure 13 and Figure 14 is a schematic structural diagram of a feeding component;

[0041] Figure 15 and Figure 16 is a schematic structural diagram of a sample output component;

[0042] Figure 17 and Figure 18 is a schematic structural diagram of a positioning component;

[0043] Figure 19 and Figure 20 is a schematic structural diagram of a sample rack limiting mechanism;

[0044] Figure 21 is a schematic structural diagram of a test tube top tube mechanism;

[0045] Figure 22 is a schematic structural diagram of an emergency sample adding mechanism;

[0046] Figure 23 is an exploded view of an emergency sample adding mechanism;

[0047] Figure 24 is a schematic structural diagram of a support base;

[0048] Figure 25 is a schematic structural diagram of a support frame;

[0049] Figure 26 is a schematic structural diagram of a sample seat;

[0050] Figure 27 is an exploded view of a sample seat;

[0051] Figure 28 is a schematic structural diagram of a first information reading module;

[0052] Figure 29 is a schematic structural diagram of a second information reading module;

[0053] Figure 30 is a schematic structural diagram of a sample rack.

[0054] Among them, there are a sample rack limiting mechanism 1, a test tube top tube mechanism 2, a positioning component 3, a turning component 4, a sample injection component 5, a feeding component 6, a sample output component 7, a cascaded conveying component 8, an emergency sample addition mechanism 9, a bottom plate 10, a support plate 11, a first information reading component 12, a second information reading component 13, a sample injection area 14, a sample output area 15, a feeding area 16, a transition area 17, a front area 18, a middle area 19, a rear area 20, a first moving slot 21, a first moving flap 22, a second moving slot 23, a second moving flap 24, a third moving slot 25, a third moving flap 26, a fourth moving slot 27, a fourth moving flap 28, a sample rack 90, a motor mounting plate 29, a turning motor 30, a turning belt pulley 31, a rotating shaft fixing plate 32, a turning rotating shaft 33, a dial block 34, a turning opto-coupler bracket 35, a turning opto-coupler sensor 36, a turning opto-coupler baffle 37, a limiting edge 38, a cascaded mounting plate 39, a cascaded motor 40, a cascaded driven wheel 41, a cascaded driving wheel 42, a first flap bracket 43, a cascaded limiting screw 44, a cascaded transmission belt 45, a cascaded guide rod fixing block 46, a cascaded guide rod 47, a cascaded sliding sleeve 48, a cascaded sliding block 49, a cascaded opto-coupler sensor 50, a cascaded opto-coupler baffle 51, a guiding bracket 52, a guiding flap 53, a guiding limiting screw 54, a guiding slot 55, a sample injection mounting plate 56, a sample injection motor 57, a sample injection driven wheel 58, a sample injection driving wheel 59, a second flap bracket 60, a sample injection limiting screw 61, a sample injection transmission belt 62, a sample injection guide rod fixing block 63, a sample injection guide rod 64, a sample injection sliding sleeve 65, a sample injection sliding block 66, a sample injection opto-coupler sensor 67, a sample injection opto-coupler baffle 68, a feeding mounting plate 69, a feeding motor 70, a feeding driven wheel 71, a feeding driving wheel 72, a third flap bracket 73, a feeding limiting screw 74, a feeding transmission belt 75, a feeding guide rail 76, a feeding sliding block 77, a feeding opto-coupler sensor 78, a feeding opto-coupler baffle 79, a sample output mounting plate 80, a sample output motor 81, a sample output driven wheel 82, a sample output driving wheel 83, a fourth flap bracket 84, a sample output limiting screw 85, a sample output transmission belt 86, a sample output guide rod fixing block 87, a sample output guide rod 88, a sample output sliding sleeve 89, a sample output sliding block 91, a sample output opto-coupler sensor 92, a sample output opto-coupler baffle 93, a positioning bracket 94, a sample rack stop block 95, a limiting wheel 96, a limiting rotating shaft 97, a limiting elastic member 98, a first limiting horizontal axis 99, a second limiting horizontal axis 100, a limiting horizontal axis fixing block 101, a limiting opto-coupler sensor 102, a top tube bracket 103, a top tube elastic member 104, a front vertical plate 105, a rear vertical plate 106, an umbrella-shaped shaft end 107, a shaft body 108, a shaft shoulder 109, a transition opto-coupler sensor 110, a front opto-coupler sensor 111, a middle opto-coupler sensor 112, a rear opto-coupler sensor 113, a sample injection detection opto-coupler sensor 114, a sample output detection opto-coupler sensor 115, a feeding detection opto-coupler sensor 116, a support frame 117, a moving slot 118, a support seat 126, a position opto-coupler sensor 119, a sample seat 120, a detection opto-coupler sensor 121, a position opto-coupler baffle 122Sample placement slot 123, guiding sliding groove 124, guiding slider 125, handle 127, left cover plate 128, right cover plate 129, test tube baffle 130, magnet 131, iron sheet 132, RFID card 133, mounting plate 134, protective cover 135, insulating ring 136, supporting chassis 137, first long hole 138, second long hole 139, wire pressing plate 140., Detailed implementation mode

[0055] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0056] Please refer to Figures 1 - 30 The present invention provides a cascade sample rack transmission device, including: a bottom plate 10, a support plate 11 arranged above the bottom plate 10, a turning component 4, a sample loading component 5, a feeding component 6, a sample discharging component 7, a cascade conveying component 8, a sample rack detection system, a first information reading component 12, and a second information reading component 13; the support plate 11 is divided into: a sample loading area 14, a sample discharging area 15, a feeding area 16, and a cascade conveying area, and the cascade conveying area is divided into: a transition area 17, a front area 18, a middle area 19, and a rear area 20, and the transition area 17, the front area 18, the middle area 19, and the rear area 20 are connected in sequence; the sample loading area 14 is arranged on one side of the front area 18, the feeding area 16 is arranged on one side of the sample discharging area 15, and the sample discharging area 15 is arranged on one side of the rear area 20; a plurality of first movable slots 21 are arranged in the cascade conveying area, a plurality of first movable paddles 22 are arranged on the cascade conveying component 8, and the first movable paddles 22 pass through the first movable slots 21; a plurality of second movable slots 23 are arranged in the sample loading area 14, a plurality of second movable paddles 24 are arranged on the sample loading component 5, and the second movable paddles 24 pass through the second movable slots 23; a plurality of third movable slots 25 are arranged in the feeding area 16, a plurality of third movable paddles 26 are arranged on the feeding component 6, and the third movable paddles 26 pass through the third movable slots 25; a plurality of fourth movable slots 27 are arranged in the sample discharging area 15, a plurality of fourth movable paddles 28 are arranged on the sample discharging component 7, and the fourth movable paddles 28 pass through the fourth movable slots 27; the first information reading component 12 is arranged on one side of the sample loading area 14, and the second information reading component 13 is arranged on one side of the feeding area 16; the front area 18 is arranged between the turning component 4 and the sample loading area 14.

[0057] When the sample rack 90 transported by the upper-level instrument runs to the transition area 17 of the cascaded conveying area, it will be detected by the sample rack detection system, and then the first information reading component 12 is activated to read the information of the sample rack 90. At the same time, the cascaded transportation component starts to convey the sample rack 90 to the left until it reaches the front area 18, and the sample rack 90 will also be detected by the sample rack detection system; at this time, it is judged whether the sample carried by the sample rack 90 needs to enter this machine for testing according to the information of the sample rack 90 fed back by the first information reading component 12. If it needs to enter this machine for testing, the cascaded conveying component 8 is stopped. At the same time, it is judged whether there is a vacant position for loading the sample rack in the sample injection area 14I according to the information fed back by the sample rack detection system. If there is a vacant position, the turning component 4 is activated to turn the sample rack 90 in the front area 18 to the sample injection area 14. Otherwise, it waits until there is a vacant position for loading the sample rack in the sample injection area 14 and then the turning component 4 is activated to turn the sample rack 90 in the front area 18 to the sample injection area 14 (during the waiting process, the upper-level instrument will no longer transmit new sample racks 90 into this machine); if it is judged according to the information of the sample rack 90 fed back by the first information reading component 12 that the sample carried by the sample rack 90 does not need to enter this machine for testing, the cascaded conveying component 8 continues to convey the sample rack 90 to the left until the sample rack 90 enters the lower-level instrument. After the sample rack 90 enters the sample injection area 14, the sample injection component 5 pushes the sample rack 90 to a suitable vacant position according to the vacant position situation of the sample rack in the sample injection area 14 fed back by the sample rack detection system. If the sample rack detection system detects the sample rack 90 at the innermost side of the sample injection area 14, the feeding component 6 is driven to feed horizontally to the left to convey the sample rack 90 to the feeding area 16 for the main machine to perform operations such as shaking, puncturing, and sampling on the sample on the sample rack 90. When the sample rack 90 enters the innermost side of the sample output area 15 and is detected by the sample detection system, the sample output component 7 pushes the sample rack 90 to a suitable vacant position according to the detection of whether there is a vacant position for the sample rack in the sample output area 15 and the rear area 20 by the sample rack detection system. If there is no suitable vacant position, the feeding component 6 stops feeding new sample racks 90, and at the same time the lower-level instrument continues to run until the cascaded conveying component 8 empties the rear area 20 for the sample output component 7 to push out the currently waiting sample rack 90. During the process of the cascaded conveying component 8 emptying the sample racks 90 in the cascaded area, if the sample rack 90 entering the front area 18 is judged by the first information reading component 12 that the sample rack 90 needs to enter the sample injection area 14 for testing, the turning component 4 is allowed to turn the sample rack 90 to the sample injection area 14 and then continue to execute the process of emptying the sample racks 90 in the rear area 20.

[0058] The turning component 4 includes: a turning drive mechanism and a turning transmission mechanism; the turning drive mechanism mainly includes: a motor mounting plate 29 mounted on the base plate 10, a turning motor 30 mounted on the motor mounting plate 29, and a turning belt pulley 31 connected to the output shaft of the turning motor 30; the turning transmission mechanism includes: a rotating shaft fixing plate 32 mounted on the base plate 10, a turning rotating shaft 33 mounted on the rotating shaft fixing plate 32, and a turning block 34 fixedly connected to the turning rotating shaft 33; the turning belt pulley 31 drives the turning rotating shaft 33 to rotate through a belt.

[0059] When the turning motor 30 operates, it drives the turning belt pulley 31 to rotate, thereby driving the turning rotating shaft 33 to rotate, and then driving the turning block 34 to rotate, so that the sample rack 90 in the front area 18 can be pushed to the sampling area 14.

[0060] The turning transmission mechanism further includes: a turning optocoupler bracket 35 mounted on the rotating shaft fixing plate 32, a turning optocoupler sensor 36 mounted on the turning optocoupler bracket 35, and a turning optocoupler stop piece 37 fixedly connected to the turning block 34; the turning optocoupler bracket 35 is provided with a limiting edge 38 that limits the rotation of the turning block 34 within a range of 90 degrees, and the moving range of the turning optocoupler stop piece 37 overlaps with the sensing area of the turning optocoupler sensor 36.

[0061] Therefore, the turning optocoupler sensor 36 also obtains the position of the turning block 34 by sensing the turning optocoupler stop piece 37, and the limiting edge 38 is used to limit the rotation range of the turning block 34.

[0062] The cascading conveying component 8 includes: a cascading mounting plate 39 mounted on the base plate 10, a cascading motor 40, a cascading driven wheel 41, a cascading guiding mechanism respectively mounted on the cascading mounting plate 39, a cascading driving wheel 42 connected to the output shaft of the cascading motor 40, a first paddle bracket 43 mounted on the cascading guiding mechanism, a cascading limit screw 44 mounted on the first paddle bracket 43, and a cascading transmission belt 45 respectively connected to the cascading driving wheel 42 and the cascading driven wheel 41; the first paddle bracket 43 is fixedly connected to the cascading transmission belt 45, and the first movable paddle 22 is connected to the first paddle bracket 43 through a rotating shaft; the cascading limit screw 44 is arranged on one side of the first movable paddle 22.

[0063] When the cascading motor 40 operates, it will drive the cascading driving wheel 42 and the cascading driven wheel 41 to rotate, and then drive the first paddle bracket 43 to move. The first movable paddle 22 arranged on the first paddle bracket 43 will also move. When moving forward, the first movable paddle 22 that catches the sample rack 90 can push the sample rack 90 to move. Since the first movable paddle 22 and the first paddle bracket 43 are connected through a rotating shaft, when moving backward, the first movable paddle 22 will not drive the sample rack 90 to move.

[0064] The cascade guiding mechanism includes: two cascade guide rod fixing blocks 46 fixed on the cascade mounting plate 39, a cascade guide rod 47 with both ends respectively connected to the two cascade guide rod fixing blocks 46, a cascade sliding sleeve 48 sleeved on the cascade guide rod 47, and a cascade sliding block 49 mounted on the cascade sliding sleeve 48. The first flap bracket 43 is mounted on the cascade sliding block 49.

[0065] The cascade conveying assembly 8 further includes: a cascade opto-coupler sensor 50 mounted on the cascade mounting plate 39, and a cascade opto-coupler flap 51 mounted on the cascade sliding block 49. The moving range of the cascade opto-coupler flap 51 overlaps with the sensing area of the cascade opto-coupler sensor 50. The cascade opto-coupler sensor 50 obtains the position of the first moving flap 22 by sensing the cascade opto-coupler flap 51.

[0066] The cascade conveying assembly 8 further includes: a guiding bracket 52 mounted on the first flap bracket 43, a guiding flap 53 and a guiding limit screw 54 respectively arranged on the guiding bracket 52. A guiding groove 55 is provided between the cascade conveying area and the sample loading area 14. The guiding flap 53 passes through the guiding groove 55. The guiding flap 53 is mounted on the guiding bracket 52 through a rotating shaft, and the guiding flap 53 is arranged on one side of the guiding limit screw 54. The guiding flap 53 can limit the sample rack 90 to prevent the sample rack 90 from tipping over.

[0067] The sample loading assembly 5 includes: a sample loading mounting plate 56 mounted on the base plate 10, a sample loading motor 57, a sample loading driven wheel 58, a sample loading guiding mechanism respectively mounted on the sample loading mounting plate 56, a sample loading driving wheel 59 connected to the output shaft of the sample loading motor 57, a second flap bracket 60 mounted on the sample loading guiding mechanism, a sample loading limit screw 61 mounted on the second flap bracket 60, and a sample loading transmission belt 62 respectively connected to the sample loading driving wheel 59 and the sample loading driven wheel 58. The second flap bracket 60 is fixedly connected to the sample loading transmission belt 62. The second moving flap 24 is connected to the second flap bracket 60 through a rotating shaft. The sample loading limit screw 61 is arranged on one side of the second moving flap 24.

[0068] When the sample loading motor 57 operates, it will drive the sample loading driving wheel 59 and the sample loading driven wheel 58 to rotate, and then drive the second flap bracket 60 to move. The second moving flap 24 arranged on the second flap bracket 60 will also move. When moving forward, the second flap that catches the sample rack 90 can push the sample rack 90 to move. Since the second moving flap 24 and the second flap bracket 60 are connected through a rotating shaft, when moving backward, the second moving flap 24 will not drive the sample rack 90 to move.

[0069] The sample injection guiding mechanism includes: two sample injection guide rod fixing blocks 63 fixed on the sample injection mounting plate 56, a sample injection guide rod 64 with both ends connected to the two sample injection guide rod fixing blocks 63 respectively, a sample injection sliding sleeve 65 sleeved on the sample injection guide rod 64, a sample injection sliding block 66 installed on the sample injection sliding sleeve 65, and the second dial plate bracket 60 is installed on the sample injection sliding block 66.

[0070] The sample injection assembly 5 further includes: a sample injection opto-coupler sensor 67 installed on the sample injection mounting plate 56, a sample injection opto-coupler baffle 68 installed on the sample injection sliding block 66, and the moving range of the sample injection opto-coupler baffle 68 overlaps with the sensing area of the sample injection opto-coupler sensor 67. The sample injection opto-coupler sensor 67 obtains the position of the second moving dial plate 24 by sensing the sample injection opto-coupler baffle 68.

[0071] The feeding assembly 6 includes: a feeding mounting plate 69 installed on the bottom plate 10, a feeding motor 70, a feeding driven wheel 71, a feeding guiding mechanism respectively installed on the feeding mounting plate 69, a feeding driving wheel 72 connected to the output shaft of the feeding motor 70, a third dial plate bracket 73 installed on the feeding guiding mechanism, a feeding limit screw 74 installed on the third dial plate bracket 73, and a feeding transmission belt 75 respectively connected to the feeding driving wheel 72 and the feeding driven wheel 71; the third dial plate bracket 73 is fixedly connected to the feeding transmission belt 75, and the third moving dial plate 26 is connected to the third dial plate bracket 73 through a rotating shaft; the feeding limit screw 74 is arranged on one side of the third moving dial plate 26.

[0072] When the feeding motor 70 operates, it will drive the feeding driving wheel 72 and the feeding driven wheel 71 to rotate, and then drive the third dial plate bracket 73 to move. The third moving dial plate 26 arranged on the third dial plate bracket 73 will also move. When moving forward, the third dial plate that catches the sample rack 90 can push the sample rack 90 to move. Since the third moving dial plate 26 and the third dial plate bracket 73 are connected through a rotating shaft, when moving backward, the third moving dial plate 26 will not drive the sample rack 90 to move.

[0073] The feeding guiding mechanism includes: a feeding guide rail 76 fixed on the feeding mounting plate 69, a feeding sliding block 77 sleeved on the feeding guide rail 76, and the third dial plate bracket 73 is installed on the feeding sliding block 77.

[0074] The feeding assembly 6 further includes: a feeding opto-coupler sensor 78 installed on the feeding mounting plate 69, a feeding opto-coupler baffle 79 installed on the third dial plate bracket 73, and the moving range of the feeding opto-coupler baffle 79 overlaps with the sensing area of the feeding opto-coupler sensor 78. The feeding opto-coupler sensor 78 obtains the position of the third moving dial plate 26 by sensing the feeding opto-coupler baffle 79.

[0075] The sample output assembly 7 includes: a sample output mounting plate 80 mounted on the base plate 10, a sample output motor 81, a sample output driven wheel 82, and a sample output guiding mechanism respectively mounted on the sample output mounting plate 80, a sample output driving wheel 83 connected to the output shaft of the sample output motor 81, a fourth paddle support 84 mounted on the sample output guiding mechanism, a sample output limit screw 85 mounted on the fourth paddle support 84, and a sample output transmission belt 86 respectively connected to the sample output driving wheel 83 and the sample output driven wheel 82; the fourth paddle support 84 is fixedly connected to the sample output transmission belt 86, and the fourth movable paddle 28 is connected to the fourth paddle support 84 through a rotating shaft; the sample output limit screw 85 is arranged on one side of the fourth movable paddle 28.

[0076] When the sample output motor 81 operates, it will drive the sample output driving wheel 83 and the sample output driven wheel 82 to rotate, and then drive the fourth paddle support 84 to move. The fourth movable paddle 28 arranged on the fourth paddle support 84 will also move. When moving forward, the paddle that catches the sample rack 90 can push the sample rack 90 to move. Since the fourth movable paddle 28 and the fourth paddle support 84 are connected through a rotating shaft, when moving backward, the fourth movable paddle 28 will not drive the sample rack 90 to move.

[0077] The sample output guiding mechanism includes: two sample output guide rod fixing blocks 87 fixed on the sample output mounting plate 80, a sample output guide rod 88 with both ends respectively connected to the two sample output guide rod fixing blocks 87, a sample output sliding sleeve 89 sleeved on the sample output guide rod 88, and a sample output sliding block 91 mounted on the sample output sliding sleeve 89. The fourth paddle support 84 is mounted on the sample output sliding block 91.

[0078] The sample output assembly 7 further includes: a sample output opto-coupler sensor 92 mounted on the sample output mounting plate 80, and a sample output opto-coupler baffle 93 mounted on the sample output sliding block 91. The moving range of the sample output opto-coupler baffle 93 overlaps with the sensing area of the sample output opto-coupler sensor 92. The sample output opto-coupler sensor 92 obtains the position of the fourth movable paddle 28 by sensing the sample output opto-coupler baffle 93.

[0079] The cascadable sample rack transmission device further includes: a positioning component 3 disposed on one side of the feeding area 16; the positioning component 3 includes: a positioning bracket 94, a sample rack limiting mechanism 1, a sample rack stopper 95, and a test tube top tube mechanism 2 respectively installed on the positioning bracket 94; the sample rack limiting mechanism 1 includes: a limiting wheel 96, a limiting rotating shaft 97, a limiting elastic member 98, a first limiting horizontal shaft 99, a second limiting horizontal shaft 100, a limiting horizontal shaft fixing block 101, and a limiting opto-coupler sensor 102; the first limiting horizontal shaft 99 and the second limiting horizontal shaft 100 are fixedly connected to the limiting horizontal shaft fixing block 101, the limiting rotating shaft 97 is rotatably connected to the second limiting horizontal shaft 100, the limiting wheel 96 is sleeved on the limiting rotating shaft 97, one end of the limiting elastic member 98 is lapped with the limiting rotating shaft 97 and the other end is lapped with the first limiting horizontal shaft 99, the limiting opto-coupler sensor is fixedly connected to the positioning bracket 94, and the moving range of the limiting rotating shaft 97 overlaps with the sensing area of the limiting opto-coupler sensor 102.

[0080] The positioning component 3 is used to fix the sample rack 90, facilitating the operation of the samples on the sample rack 90. The limiting elastic member 98 can provide a downward pressure to the limiting wheel 96, thereby pressing the limiting wheel 96 against the limiting groove on the sample rack 90, and then positioning the sample rack 90. The limiting opto-coupler sensor obtains the position of the limiting wheel 96 by sensing the limiting rotating shaft 97. The limiting elastic member 98 is a spring.

[0081] The test tube top tube mechanism 2 includes: a top tube bracket 103 fixed on the sample rack stopper 95, a top tube shaft, and a top tube elastic member 104. The top tube bracket 103 is provided with a front vertical plate 105 and a rear vertical plate 106. The top tube shaft includes an umbrella-shaped shaft end 107, a shaft body 108 connected to the umbrella-shaped shaft end 107, and a shaft shoulder 109 provided on the shaft body 108. The shaft body 108 passes through the front vertical plate 105 and the rear vertical plate 106, and the shaft shoulder 109 is disposed between the front vertical plate 105 and the rear vertical plate 106. The top tube elastic member 104 is sleeved on the shaft body 108, and both ends of the top tube elastic member 104 are in contact with the rear vertical plate 106 and the shaft shoulder 109 respectively. The front vertical plate 105 is disposed between the shaft shoulder 109 and the umbrella-shaped shaft end 107.

[0082] The top tube elastic member 104 will provide a pressure to the umbrella-shaped shaft end 107, enabling the umbrella-shaped shaft end 107 to press the test tube on the sample rack 90. The top tube elastic member 104 is a spring.

[0083] A sample rack limiting mechanism 1 is disposed on one side of the transition area 17.

[0084] The sample rack detection system includes: a transition optocoupler sensor 110 disposed on one side of the transition area 17, a front optocoupler sensor 111 disposed on one side of the front area 18, a middle optocoupler sensor 112 disposed on one side of the middle area 19, a rear optocoupler sensor 113 disposed on one side of the rear area 20, a sample injection detection optocoupler sensor 114 disposed on one side of the sample injection area 14, a sample output detection optocoupler sensor 115 disposed on one side of the sample output area 15, and a feeding detection optocoupler sensor 116 disposed on one side of the feeding area 16; there are a plurality of the sample injection detection optocoupler sensors 114, which are evenly distributed on one side of the sample injection area 14; there are a plurality of the sample output detection optocoupler sensors 115, which are evenly distributed in the sample output area 15. The transition optocoupler sensor 110 is used to sense whether there is a sample rack 90 in the transition area 17, the front optocoupler sensor 111 is used to sense whether there is a sample rack 90 in the front area 18, the middle optocoupler sensor 112 is used to sense whether there is a sample rack 90 in the middle area 19, the sample injection detection optocoupler sensor 114 is used to sense whether there is a sample rack 90 in the sample injection area 14, the feeding detection optocoupler sensor 116 is used to detect whether there is a sample rack 90 in the feeding area 16, and the sample output detection optocoupler sensor 115 is used to detect whether there is a sample rack 90 in the sample output area 15.

[0085] The cascadeable sample rack transmission device further includes: an emergency sample addition mechanism 9 installed on the pallet 11, and the emergency sample addition mechanism 9 is disposed between the sample injection area 14, the sample output area 15, the feeding area 16, and the cascade conveying area; the emergency sample addition mechanism 9 includes: a support frame 117, a support seat 126 installed on the support frame 117 and provided with a moving groove 118, a position optocoupler sensor 119 installed on the support frame 117, a sample seat 120 disposed in the moving groove 118, a detection optocoupler sensor 121 installed in the sample seat 120, and a position optocoupler stop piece 122 connected to the sample seat 120; the sample seat 120 is provided with a sample placement groove 123, and the detection optocoupler sensor 121 faces the sample placement groove 123; the sensing area of the position optocoupler sensor 119 overlaps with the moving range of the position optocoupler stop piece 122; a guiding chute 124 is disposed in the moving groove 118, the sample seat 120 is provided with a guiding slider 125, and the guiding slider 125 matches the guiding chute 124; the second information reading component 13 is installed on the support seat 126.

[0086] The cascadeable sample rack transmission device further includes: a handle 127 connected to the sample seat 120, and the handle 127 is disposed above the support seat 126.

[0087] The cascadeable sample rack transmission device further includes: a left cover plate 128, a right cover plate 129, and a test tube baffle 130 respectively installed on the support seat 126.

[0088] One end of the moving slot 118 is provided with a magnet 131, and an iron sheet 132 is arranged on the side of the sample holder 120 facing the magnet 131.

[0089] The emergency sample adding mechanism 9 is used to detect emergency samples in advance.

[0090] The position optocoupler sensor 119 is arranged below the support base 126. The position optocoupler baffle 122 is connected to the lower end of the sample holder 120. The support frame 117 is provided with a first long slot 138, and the position optocoupler baffle 122 passes through the first long slot 138.

[0091] The support frame 117 is provided with a second long slot 139. A wire pressing plate 140 is connected to the bottom of the sample holder 120, and the wire pressing plate 140 is arranged in the second long slot 139.

[0092] Both the first information reading component 12 and the second information reading component 13 are RFID reading modules. The RFID reading module includes: an RFID card 133, a mounting plate 134, a protective cover 135, and an insulating ring 136. The support frame 117 is connected to the bottom plate 10. The mounting plate 134 is mounted on the support frame 117. The RFID card is mounted on the mounting plate 134 through the insulating ring 136. The protective cover 135 covers the RFID card 133 and is connected to the mounting plate 134.

[0093] Preferably, the mounting plate 134, the insulating ring 136, and the protective cover 135 are all made of plastic materials to avoid interfering with the RFID card signal. The first information reading component 12 is connected to the bottom plate 10 through a support chassis 137, and the second information reading component 13 is mounted on the emergency sample adding mechanism through the mounting plate 134.

[0094] In summary, the present invention provides a cascading sample rack transmission device. The sample rack is transmitted from the upper-level instrument to the front area. The first information reading component reads the information of the sample rack to determine whether the sample in the sample rack needs to be detected on this machine. If it does not need to be detected, the cascading conveying component conveys the sample rack to the middle area and finally transports it to the rear area and then leaves this machine. If it needs to be detected on this machine, the turning component pushes the sample rack to the sample injection area. The sample rack will be conveyed to the feeding area for sampling and testing. After sampling and testing, the sample rack enters the sample output area, and finally the sample rack enters the rear area and then leaves this machine. The cascading sample rack transmission device greatly reduces the occupied space, has a simple structure and low cost, and can fully meet the needs of small and medium-sized hospitals and testing institutions for a sample rack transmission device with a smaller occupied space and a lower cost.

[0095] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cascading sample rack transmission device, characterized in that, it includes: a bottom plate, a pallet arranged above the bottom plate, a turning component, a sample injection component, a feeding component, a sample output component, a cascading conveying component, a sample rack detection system, a first information reading component, and a second information reading component; the pallet is divided into: a sample injection area, a sample output area, a feeding area, and a cascading conveying area, and the cascading conveying area is divided into: a transition area, a front area, a middle area, and a rear area, and the transition area, the front area, the middle area, and the rear area are connected in sequence; the sample injection area is arranged on one side of the front area, the feeding area is arranged on one side of the sample output area, and the sample output area is arranged on one side of the rear area; a number of first moving slots are arranged in the cascading conveying area, a number of first moving paddles are arranged on the cascading conveying component, and the first moving paddles pass through the first moving slots; a number of second moving slots are arranged in the sample injection area, a number of second moving paddles are arranged on the sample injection component, and the second moving paddles pass through the second moving slots; a number of third moving slots are arranged in the feeding area, a number of third moving paddles are arranged on the feeding component, and the third moving paddles pass through the third moving slots; a number of fourth moving slots are arranged in the sample output area, a number of fourth moving paddles are arranged on the sample output component, and the fourth moving paddles pass through the fourth moving slots; the first information reading component is arranged on one side of the sample injection area, and the second information reading component is arranged on one side of the feeding area; the front area is arranged between the turning component and the sample injection area; the turning component includes: a turning driving mechanism and a turning transmission mechanism; the turning driving mechanism mainly includes: a motor mounting plate mounted on the bottom plate, a turning motor mounted on the motor mounting plate, and a turning belt pulley connected to the output shaft of the turning motor; the turning transmission mechanism includes: a rotating shaft fixing plate mounted on the bottom plate, a turning rotating shaft mounted on the rotating shaft fixing plate, and a turning block fixedly connected to the turning rotating shaft; the turning belt pulley drives the turning rotating shaft to rotate through a belt; the turning transmission mechanism further includes: a turning opto-coupler bracket mounted on the rotating shaft fixing plate, a turning opto-coupler sensor mounted on the turning opto-coupler bracket, and a turning opto-coupler baffle fixedly connected to the turning block; the turning opto-coupler bracket is provided with a limiting edge that restricts the turning of the turning block within a range of 90 degrees, and the moving range of the turning opto-coupler baffle overlaps with the sensing area of the turning opto-coupler sensor; the cascading conveying component includes: a cascading mounting plate mounted on the bottom plate, a cascading motor, a cascading driven wheel, and a cascading guiding mechanism respectively mounted on the cascading mounting plate, a cascading driving wheel connected to the output shaft of the cascading motor, a first paddle bracket mounted on the cascading guiding mechanism, a cascading limiting screw mounted on the first paddle bracket, and a cascading transmission belt respectively connected to the cascading driving wheel and the cascading driven wheel; the first paddle bracket is fixedly connected to the cascading transmission belt, and the first moving paddle is connected to the first paddle bracket through a rotating shaft; the cascading limiting screw is arranged on one side of the first moving paddle; The cascade guiding mechanism includes: two cascade guide rod fixing blocks fixed on the cascade mounting plate, a cascade guide rod with two ends respectively connected to the two cascade guide rod fixing blocks, a cascade sliding sleeve sleeved on the cascade guide rod, and a cascade sliding block mounted on the cascade sliding sleeve. The first flap bracket is mounted on the cascade sliding block; The cascade conveying assembly further includes: a cascade opto-coupler sensor mounted on the cascade mounting plate, and a cascade opto-coupler baffle mounted on the cascade sliding block. The moving range of the cascade opto-coupler baffle overlaps with the sensing area of the cascade opto-coupler sensor; The cascade conveying assembly further includes: a guiding bracket mounted on the first flap bracket, a guiding flap and a guiding limit screw respectively arranged on the guiding bracket; a guiding groove is provided between the cascade conveying area and the sample injection area. The guiding flap passes through the guiding groove. The guiding flap is mounted on the guiding bracket through a rotating shaft, and the guiding flap is arranged on one side of the guiding limit screw; The sample injection assembly includes: a sample injection mounting plate mounted on the bottom plate, a sample injection motor, a sample injection driven wheel, a sample injection guiding mechanism respectively mounted on the sample injection mounting plate, a sample injection driving wheel connected to the output shaft of the sample injection motor, a second flap bracket mounted on the sample injection guiding mechanism, a sample injection limit screw mounted on the second flap bracket, and a sample injection transmission belt respectively connected to the sample injection driving wheel and the sample injection driven wheel; the second flap bracket is fixedly connected to the sample injection transmission belt, and the second movable flap is connected to the second flap bracket through a rotating shaft; the sample injection limit screw is arranged on one side of the second movable flap; The sample injection guiding mechanism includes: two sample injection guide rod fixing blocks fixed on the sample injection mounting plate, a sample injection guide rod with two ends respectively connected to the two sample injection guide rod fixing blocks, a sample injection sliding sleeve sleeved on the sample injection guide rod, and a sample injection sliding block mounted on the sample injection sliding sleeve. The second flap bracket is mounted on the sample injection sliding block; The sample injection assembly further includes: a sample injection opto-coupler sensor mounted on the sample injection mounting plate, and a sample injection opto-coupler baffle mounted on the sample injection sliding block. The moving range of the sample injection opto-coupler baffle overlaps with the sensing area of the sample injection opto-coupler sensor; The feeding assembly includes: a feeding mounting plate mounted on the bottom plate, a feeding motor, a feeding driven wheel, a feeding guiding mechanism respectively mounted on the feeding mounting plate, a feeding driving wheel connected to the output shaft of the feeding motor, a third flap bracket mounted on the feeding guiding mechanism, a feeding limit screw mounted on the third flap bracket, and a feeding transmission belt respectively connected to the feeding driving wheel and the feeding driven wheel; the third flap bracket is fixedly connected to the feeding transmission belt, and the third movable flap is connected to the third flap bracket through a rotating shaft; the feeding limit screw is arranged on one side of the third movable flap; The feeding guiding mechanism includes: a feeding guide rail fixed on the feeding mounting plate, and a feeding sliding block sleeved on the feeding guide rail. The third flap bracket is mounted on the feeding sliding block; The feeding assembly further includes: a feeding opto-coupler sensor mounted on the feeding mounting plate, and a feeding opto-coupler baffle mounted on the third paddle bracket, wherein the moving range of the feeding opto-coupler baffle overlaps with the sensing area of the feeding opto-coupler sensor; The sample output assembly includes: a sample output mounting plate mounted on the bottom plate, a sample output motor, a sample output driven wheel, and a sample output guiding mechanism respectively mounted on the sample output mounting plate, a sample output driving wheel connected to the output shaft of the sample output motor, a fourth paddle bracket mounted on the sample output guiding mechanism, a sample output limit screw mounted on the fourth paddle bracket, and a sample output transmission belt respectively connected to the sample output driving wheel and the sample output driven wheel; the fourth paddle bracket is fixedly connected to the sample output transmission belt, and the fourth movable paddle is connected to the fourth paddle bracket through a rotating shaft; the sample output limit screw is arranged on one side of the fourth movable paddle; The sample output guiding mechanism includes: two sample output guide rod fixing blocks fixed on the sample output mounting plate, a sample output guide rod with two ends respectively connected to the two sample output guide rod fixing blocks, a sample output sliding sleeve sleeved on the sample output guide rod, and a sample output sliding block mounted on the sample output sliding sleeve, wherein the fourth paddle bracket is mounted on the sample output sliding block; The sample output assembly further includes: a sample output opto-coupler sensor mounted on the sample output mounting plate, and a sample output opto-coupler baffle mounted on the sample output sliding block, wherein the moving range of the sample output opto-coupler baffle overlaps with the sensing area of the sample output opto-coupler sensor.

2. A cascadeable sample rack transmission device according to claim 1, wherein, it further includes: a positioning assembly arranged on one side of the feeding area; the positioning assembly includes: a positioning bracket, a sample rack limiting mechanism, a sample rack stopper, and a test tube top tube mechanism respectively mounted on the positioning bracket; the sample rack limiting mechanism includes: a limiting wheel, a limiting rotating shaft, a limiting elastic member, a first limiting horizontal shaft, a second limiting horizontal shaft, a limiting horizontal shaft fixing block, and a limiting opto-coupler sensor; the first limiting horizontal shaft and the second limiting horizontal shaft are fixedly connected to the limiting horizontal shaft fixing block, the limiting rotating shaft is rotatably connected to the second limiting horizontal shaft, the limiting wheel is sleeved on the limiting rotating shaft, one end of the limiting elastic member is lapped with the limiting rotating shaft and the other end is lapped with the first limiting horizontal shaft, the limiting opto-coupler sensor is fixedly connected to the positioning bracket, and the moving range of the limiting rotating shaft overlaps with the sensing area of the limiting opto-coupler sensor; The test tube top tube mechanism includes: a top tube bracket fixed on the sample rack stopper, a top tube shaft, and a top tube elastic member. The top tube bracket is provided with a front vertical plate and a rear vertical plate. The top tube shaft includes an umbrella-shaped shaft end, a shaft body connected to the umbrella-shaped shaft end, and a shaft shoulder arranged on the shaft body. The shaft body passes through the front vertical plate and the rear vertical plate, and the shaft shoulder is arranged between the front vertical plate and the rear vertical plate. The top tube elastic member is sleeved on the shaft body, and two ends of the top tube elastic member are respectively in contact with the rear vertical plate and the shaft shoulder. The front vertical plate is arranged between the shaft shoulder and the umbrella-shaped shaft end; A sample rack limiting mechanism is arranged on one side of the transition area.

3. A cascadeable sample rack transmission device according to claim 1, wherein, The sample rack detection system includes: a transition optocoupler sensor disposed on one side of the transition zone, a front optocoupler sensor disposed on one side of the front zone, a middle optocoupler sensor disposed on one side of the middle zone, a rear optocoupler sensor disposed on one side of the rear zone, a sample injection detection optocoupler sensor disposed on one side of the sample injection zone, a sample ejection detection optocoupler sensor disposed on one side of the sample ejection zone, and a feeding detection optocoupler sensor disposed on one side of the feeding zone.

4. A cascadable sample rack transmission device according to claim 1, wherein, it further includes: an emergency sample addition mechanism installed on the pallet, and the emergency sample addition mechanism is disposed between the sample injection zone, the sample ejection zone, the feeding zone, and the cascading conveying zone; the emergency sample addition mechanism includes: a support frame, a support seat installed on the support frame and provided with a moving groove, a position optocoupler sensor installed on the support frame, a sample seat disposed in the moving groove, a detection optocoupler sensor installed in the sample seat, and a position optocoupler baffle connected to the sample seat; the sample seat is provided with a sample placement groove, and the detection optocoupler sensor faces the sample placement groove; the sensing area of the position optocoupler sensor overlaps with the moving range of the position optocoupler baffle; a guiding sliding groove is disposed in the moving groove, and the sample seat is provided with a guiding sliding block, and the guiding sliding block is matched with the guiding sliding groove; the second information reading component is installed on the support seat; the position optocoupler sensor is disposed below the support seat, the position optocoupler baffle is connected to the lower end of the sample seat, the support frame is provided with a first long hole, and the position optocoupler baffle passes through the first long hole; the support frame is provided with a second long hole, and a wire pressing plate is connected to the bottom of the sample seat, and the wire pressing plate is disposed in the second long hole; it further includes: a handle connected to the sample seat, and the handle is disposed above the support seat; it further includes: a left cover plate, a right cover plate, and a test tube baffle respectively installed on the support seat; a first magnet is disposed at one end of the moving groove, and a second magnet is disposed on the side of the sample seat facing the first magnet, and the first magnet and the second magnet attract each other; alternatively, a magnet is disposed at one end of the moving groove, and an iron sheet is disposed on the side of the sample seat facing the magnet; alternatively, an iron sheet is disposed at one end of the moving groove, and a magnet is disposed on the side of the sample seat facing the iron sheet.

5. A cascadable sample rack transmission device according to claim 1, wherein, both the first information reading component and the second information reading component are RFID reading modules; the RFID reading module includes: an RFID card, a mounting plate, a protective cover, and an insulating ring; the RFID card is installed on the mounting plate through the insulating ring, and the protective cover covers the RFID card and is connected to the mounting plate.

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