A sample rack pushing device and a sample analyzer

Abstract

The application provides a sample holder pushing device and a sample analyzer, and belongs to the field of medical instruments, and is used for solving the problem that the manufacturing cost of the sample holder pushing device is increased due to the addition of the up-down moving mechanism in the prior art; the sample holder pushing device comprises a base, a mounting seat, a first driving mechanism, a first pushing piece and an elastic piece, the first pushing piece is rotatably connected with the mounting seat, when the first driving mechanism drives the first pushing piece to move from an end position to a starting position, the pushing claw arranged on the first pushing piece can avoid the sample holder, and after the avoidance, the pushing claw can be reset to a position capable of pushing the sample holder by the reset action of the elastic piece, so that the material cost of the sample pushing device is reduced, the manufacturing cost is reduced, and the sample pushing device is popularized and applied in the full-automatic sample analyzer.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, and in particular relates to a sample holder pushing device and a sample analyzer. Background Technology

[0002] Fully automated sample analyzers commonly employ automatic sample loading devices. A key design feature of this system is the physical separation of the loading area and the sample delivery mechanism: the loading area receives newly loaded sample racks, while the independent delivery mechanism continuously performs sample transport. This architecture allows operators to replenish new sample racks to the loading area during system operation without interrupting the delivery mechanism's movement.

[0003] However, this design carries a specific risk of mechanical interference: after the propulsion device completes a work cycle (moving from the starting position to the ending position in the placement area), it needs to return to the starting position empty for the next round of propulsion. If the operator happens to place a new sample rack at the starting position at this time, the returning propulsion device will rigidly collide with the sample rack to be aspirated. This interference may lead to two typical failure modes: ① the sample rack may tip over due to force imbalance, causing sample contamination; ② the mechanical transmission system may develop a dead point, causing the mechanism to jam.

[0004] In related technologies, to avoid a rigid collision between the returning propulsion device and the sample holder, a vertical movement mechanism is also provided on the propulsion device. This mechanism drives the pushing component to move up and down relative to the placement area. After the propulsion device completes one work cycle, the vertical movement mechanism drives the pushing component downwards to avoid a rigid collision with the sample holder. When the propulsion device reaches the starting position of the sample holder placement area, the vertical movement mechanism drives the pushing component upwards to complete the next work cycle. However, the vertical movement mechanism requires at least one additional drive component and a transmission component connecting the pushing component and the drive component. This increases the material cost of the sample holder propulsion device and consequently, the manufacturing cost of the propulsion device, which is detrimental to the widespread application of fully automated sample analyzers. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a sample rack pushing device and a sample analyzer to solve the problem that the addition of a vertical moving mechanism to the sample rack pushing device in the prior art leads to an increase in its manufacturing cost.

[0006] To achieve the above and other related objectives, the present invention provides a sample rack pushing device, comprising: a base, a mounting base, a first driving mechanism, a first pushing member, and an elastic member; the first driving mechanism and the mounting base are disposed on the base, and the mounting base is slidably connected to the base; the first driving mechanism is drively connected to the mounting base, and the first driving mechanism is used to drive the mounting base to move between a starting position and an ending position; the first pushing member is rotatably disposed on the mounting base, and the first pushing member is provided with at least one pusher, the side of the pusher facing the starting position being a third inclined surface facing away from the base; the mounting base is provided with a limiting part, which is used to abut against the side of the first pushing member facing the starting position; the elastic member is connected to the mounting base and the first pushing member respectively, and is used to cause the first pushing member to abut against the limiting part.

[0007] Optionally, it also includes a rotating shaft, a mounting base having a mounting groove, the rotating shaft being rotatably connected to the side wall of the mounting groove, and the first pusher being fixedly connected to the rotating shaft.

[0008] Optionally, the elastic element is a spring.

[0009] Optionally, there are two pushers, which are spaced apart on the first pusher, and the connection point between the first pusher and the rotating shaft is located between the two pushers.

[0010] Optionally, the first driving mechanism includes a first driving member, a first guide member, and a first transmission assembly. The first driving member and the first guide member are disposed on the base, and the mounting base is slidably connected to the first guide member. The first driving member drives the mounting base to slide on the first guide member through the first transmission assembly.

[0011] Optionally, the first transmission assembly includes a first pulley, a second pulley, and a first belt; the first pulley is mounted on the base, the second pulley is connected to the first drive member, the first belt is sleeved on the first pulley and the second pulley, and the mounting base is connected to the first belt.

[0012] On the other hand, a sample analyzer is also provided, including a sample rack pushing device as described above, an automatic sample feeding device, and an analysis device. The automatic sample feeding device is disposed on one side of the analysis device, and the analysis device is used to detect samples. The automatic sample feeding device includes an insertion area, a transfer area, a recovery area, a second drive mechanism, and a third drive mechanism. The inlet of the transfer area is connected to the end position of the insertion area, and the outlet of the transfer area is connected to the inlet of the recovery area. The sample rack pushing device is disposed below the insertion area. When the first drive mechanism drives the first pusher to move from the starting position to the ending position, the pusher claw on the first pusher extends into the insertion area and abuts against the side of the sample rack to push the sample rack into the transfer area. The transfer area is provided with a suction position located between the inlet and outlet of the transfer area. The second drive mechanism is used to push the sample rack to be suctioned from the inlet of the transfer area to the suction position for the analysis device to suction the sample. After suctioning is completed, the suctioned sample rack is transferred to the outlet of the transfer area. The third drive mechanism is used to transfer the suctioned sample rack at the outlet of the transfer area into the recovery area.

[0013] Optionally, the second driving mechanism includes a second pusher, a second driving member, a second guide member, and a second transmission assembly; the second driving member and the second guide member are disposed on the base, the second pusher member is slidably connected to the second guide member, and the second guide member is partially located above the transfer area for contacting the side of the sample holder; the second driving member drives the second pusher member to slide on the second guide member through the second transmission assembly.

[0014] Optionally, the second transmission assembly includes a third pulley, a fourth pulley, and a second belt. The third pulley is mounted on the base and connected to the second drive member. The second belt is fitted onto the third pulley and the fourth pulley, and the second push member is connected to the second belt.

[0015] Optionally, the third drive mechanism includes a third pusher, a third drive member, a third guide member, and a third transmission assembly; the third drive member and the third guide member are disposed on the base, the third pusher member is slidably connected to the third guide member, and the third guide member is partially located above the outlet of the transfer area for contacting the side of the sample holder; the third drive member drives the third pusher member to slide on the third guide member through the third transmission assembly.

[0016] Optionally, the third transmission assembly includes a fifth pulley, a sixth pulley, and a third belt. The fifth pulley is mounted on the base and connected to the third drive member. The third belt is fitted onto the fifth and sixth pulleys, and the third push member is connected to the third belt.

[0017] As described above, the sample rack pushing device and sample analyzer of the present invention have at least the following beneficial effects: The first pushing member is rotatably connected to the mounting base via a mounting base, a first pushing member, a first driving mechanism, and an elastic member. When the first driving mechanism drives the first pushing member to move from the starting position to the ending position, the first pushing member drives the sample rack to be aspirated to the entrance of the transfer area. When the first driving mechanism drives the first pushing member to move from the ending position to the starting position, the inclined surface on the pusher of the first pushing member abuts against the subsequent sample rack to be aspirated, causing the pusher to rotate relative to the mounting base, thereby avoiding the subsequent sample rack to be aspirated. This allows the first pushing member to move to the starting position. Furthermore, when it reaches the starting position or when the pusher does not abut against the subsequent sample rack to be aspirated, the first pushing member rotates relative to the mounting base through its own elastic restoring force, thereby restoring itself to a position capable of pushing the sample rack. This reduces the material cost of the sample rack pushing device, thereby lowering manufacturing costs and facilitating the widespread application of fully automatic sample analyzers. Attached Figure Description

[0018] Figure 1 The diagram shown is a schematic representation of the overall structure of a sample analyzer according to this invention.

[0019] Figure 2 The diagram shown is a structural schematic of the automatic sample feeding device of this utility model, omitting the external housing.

[0020] Figure 3 The diagram shown is a schematic diagram of the sample holder of this utility model at one angle.

[0021] Figure 4 This is a schematic diagram of the sample holder of this utility model from another angle.

[0022] Figure 5 The diagram shown is a schematic representation of the automatic sample feeding device of this invention, omitting the outer casing and the placement plate at an angle.

[0023] Figure 6 Displayed as Figure 5 An enlarged diagram of point A in the diagram.

[0024] Figure 7 The diagram shown is a schematic representation of the automatic sample feeding device of this invention from another angle, omitting the outer casing and the placement plate.

[0025] Figure 8 The diagram shown is a schematic representation of the automatic sample feeding device of this invention, omitting the outer casing and the placement plate.

[0026] Component designation explanation: 100. Analytical apparatus; 200. Automatic sample feeding device; 1. Base; 11. First mounting component; 12. Second mounting component; 121. First side plate; 122. Second side plate; 123. First guide plate; 124. First limiting plate; 125. Second guide plate; 126. Second limiting plate; 13. Third mounting component; 14. Fourth mounting component. 2. Placement plate; 21. Placement area; 22. Transfer area; 221. Scanning position; 222. Sampling position; 23. Recovery area; 24. First guide bar; 25. Second guide bar; 26. Clearance opening; 3. Sample rack pushing device; 31. Mounting base; 311. Limiting part; 312. Mounting groove; 313. Rotating shaft; 32. First driving mechanism; 321. First driving component; 322. First guide component; 323. First transmission assembly; 3231. First pulley; 3232. Second pulley; 3233. First belt; 33. First pushing component; 331. Push claw; 3311. Third inclined surface; 34. Elastic component; 4. Second drive mechanism; 41. Second pusher; 411. First bending part; 412. Second bending part; 42. Second drive member; 43. Second transmission assembly; 431. Third pulley; 432. Fourth pulley; 433. Second belt; 44. Second guide member. 5. Third drive mechanism; 51. Third pusher; 511. Third bending part; 512. Fourth bending part; 513. Fifth bending part; 52. Third drive component; 53. Third transmission assembly; 531. Fifth pulley; 532. Sixth pulley; 533. Third belt; 54. Third guide component. 6. Support columns; 7. Sample rack; 71. Guide groove; 711. First inclined surface; 712. Second inclined surface; 72. Divider strip; 73. Weight reduction groove; 74. Limiting step; 8. Handle; 9. Collection component; 91. Collection slot. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0028] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0029] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0030] Please see Figure 1-2 This utility model provides a sample analyzer, which includes an analysis device 100 and an automatic sample introduction device 200. The automatic sample introduction device 200 may include a base 1, a placement plate 2, a sample rack pushing device 3, a second driving mechanism 4, a third driving mechanism 5, and multiple support columns 6. One end of each support column 6 is connected to the base 1, and the other end is connected to the bottom of the placement plate 2, thereby forming an installation gap between the placement plate 2 and the base 1. The placement plate 2 is divided into three areas: an insertion area 21, a transfer area 22, and a recovery area 23. The insertion area 21 and the recovery area 23 are spaced apart. The outlet of the insertion area 21 is connected to the inlet of the transfer area 22, and the inlet of the recovery area 23 is connected to the outlet of the transfer area 22.

[0031] The placement area 21, transfer area 22, and recovery area 23 are used to place sample racks 7. Each sample rack 7 is provided with one or more test tube placement positions, which are used to place test tubes containing samples. The samples can be human blood samples, urine samples, etc., depending on different testing needs.

[0032] The transfer area 22 may be equipped with a barcode scanning position 221 and a sample aspiration position 222. The barcode scanning position 221 is located between the sample aspiration position 222 and the inlet of the transfer area 22, and the sample aspiration position 222 is located between the barcode scanning position 221 and the outlet of the transfer area 22. A barcode scanning device may be provided at the interval between the placement area 21 and the recovery area 23. This device is used to scan and identify the barcode on the side wall of the test tube affixed to the sample holder 7 at the barcode scanning position 221, so that the analysis device 100 can record the patient's information and make it correspond one-to-one with the test results. The sample aspiration position 222 is used for the sampling needle of the analysis device 100 to aspirate the sample from the test tube placed on the sample holder 7, so that the analysis device 100 can test the sample. The analysis device 100 may be an instrument such as a urine analyzer, a coagulation analyzer, a blood cell analyzer, or a chemiluminescence immunoassay analyzer. This embodiment is not limited to this type of instrument.

[0033] The sample holder pushing device 3 is located in the placement area 21 and is used to push the sample holder 7 in the placement area 21 into the entrance of the transfer area 22. The second driving mechanism 4 is located in the transfer area 22 and is used to push the sample holder 7 at the entrance of the transfer area 22 to the barcode scanning position 221 for scanning by the barcode scanning device, and then push the scanned sample holder 7 to the sample suction position 222 for the sampling needle of the analyzer 100 to aspirate the sample. After the analyzer 100 has aspirated the sample from the test tube on the sample holder 7, the second driving mechanism 4 pushes the sample holder 7 to the exit of the transfer area 22. The third driving mechanism 5 is located at the exit of the transfer area 22 and is used to push the sample holder 7 at the exit of the transfer area 22 into the recovery area 23.

[0034] Please see Figure 3-4 The sample rack 7 can be a rectangular structure, which includes a rack body with multiple slots for placing test tubes. The first side wall of the rack body (the first side wall is one of the two side walls at the width of the rack body, corresponding to...) Figure 3 A guide groove 71 is provided on the right side wall of the guide groove 71. The two side walls of the guide groove 71 include a first inclined surface 711 and a second inclined surface 712 respectively. The connection between the first inclined surface 711 and the second inclined surface 712 protrudes into the guide groove 71.

[0035] First guide strips 24 are respectively provided on one side of the placement area 21 and the recycling area 23, as shown in the figure below. Figure 2 As shown, the first guide bar 24 has an L-shaped structure and is located on the right side of the placement area 21 and the recycling area 23, and is connected to the placement plate 2. The first guide bar 24 and the placement plate 2 can be formed by bending the same plate, or they can be two separate components connected together by welding or screws.

[0036] During use, the first guide bar 24 extends into the guide groove 71. Due to the arrangement of the first inclined surface 711 and the second inclined surface 712 within the guide groove 71, the contact area between the guide groove 71 and the first guide bar 24 is reduced, thereby reducing the friction generated by their contact and facilitating the movement of the sample holder pusher 3. Simultaneously, it avoids uneven running resistance of the sample holder 7, preventing jamming or deviation, and ensuring the stability and positioning accuracy of the sample introduction.

[0037] Please see Figure 3-4 The connection between the first inclined surface 711 and the second inclined surface 712 is smoothly transitioned, further reducing the sliding friction between the first guide strip 24 and the guide groove 71.

[0038] A second sidewall is perpendicular to the first sidewall on the frame (the second sidewall is one of two sidewalls along the length of the frame, corresponding to...). Figure 3 The posterior wall of the middle, Figure 4 Multiple separator strips 72 are spaced apart on the front sidewall of the sample holder 7. The separator strips 72 are used to reduce friction between two adjacent sample holders 7, so that the second drive mechanism 4 can separate the sample holder 7 located at the entrance of the transfer area 22 from the adjacent sample holders 7. The upper part of the separator strip 72 is a rectangular structure and the lower part is a triangular structure, which can improve the stability of the separator strip 72 on the second sidewall of the sample holder 7.

[0039] The extension length of the separator 72 is less than the height of the frame, that is, the separator 72 does not extend to the entire height of the frame, to ensure that friction between two adjacent sample frames 7 can be reduced.

[0040] The second side wall of the frame and the third side wall (front side wall) arranged parallel to the second side wall are provided with multiple weight-reducing grooves 73. Each group consists of two partition bars 72, and the two partition bars 72 in each group are separated by weight-reducing grooves 73 to reduce the weight of the sample rack 7, so as to facilitate the operation of the operator and facilitate the movement of the sample rack pushing device 3, the second drive mechanism 4 and the third drive mechanism 5. A limiting step 74 is provided at the bottom of the second side wall of the frame, and a second guide bar 25 is provided on the transfer area 22. The second guide bar 25 is also L-shaped and is located on the side of the placement plate 2 closest to the analytical device 100. In use, the inner side of the second guide bar 25 abuts against the side wall of the limiting step 74 to prevent the sample rack 7 from tipping over when the second drive mechanism 4 moves the sample rack 7. There can be multiple second guide bars 25, which are spaced apart on the placement plate 2, and the distance between two adjacent second guide bars 25 is less than the length of the sample rack 7. This ensures that the sample rack 7 is always limited by the second guide bar 25 when it moves within the transfer area 22, and also reduces the manufacturing cost of the automatic sample feeding device 200.

[0041] Please see Figure 2 , 5 -6. The sample rack pushing device 3 may include a mounting base 31, a first driving mechanism 32, a first pushing member 33, and an elastic member 34. The first driving mechanism 32, the mounting base 31, and the elastic member 34 are located within the mounting gap formed between the placement plate 2 and the base 1. The first driving mechanism 32 and the mounting base 31 are disposed on the base 1. The mounting base 31 is slidably connected to the base 1, and the first driving mechanism 32 is drively connected to the mounting base 31. The first driving mechanism 32 is used to drive the mounting base 31 to move between a starting position (corresponding to the inlet of the placement area 21) and an ending position (corresponding to the outlet of the placement area 21). The first pushing member 33 is rotatably disposed on the mounting base 31. The first pushing member 33 is provided with at least one pusher 331. The side of the pusher 331 facing the starting position is a third inclined surface 3311 facing away from the base 1. The mounting base 31 is provided with a limiting part 311, which is used to abut against the side of the first pushing member 33 facing the starting position. The elastic element 34 is connected to both the mounting base 31 and the first pusher 33, and is used to make the first pusher 33 abut against the limiting part 311. The elastic element 34 can be a spring, which drives the first pusher 33 to rotate relative to the mounting base 31 through its own elastic restoring force.

[0042] The placement plate 2 is provided with at least one clearance opening 26 at the position corresponding to the placement area 21. The pusher 331 provided on the first pusher 33 passes through the clearance opening 26 and extends above the placement plate 2, that is, it is located in the placement area 21.

[0043] When the first drive mechanism 32 drives the first pusher 33 to move from the starting position to the ending position, during the movement, the pusher 331 abuts against the third side wall of the sample holder 7 on the side facing the ending position. Thus, under the action of the first drive mechanism 32, the sample holder 7 is sequentially pushed to the entrance of the transfer area 22. At this time, the newly placed sample holder 7 in the placement area 21 is between the pusher 331 and the starting position. This sample holder 7 will be pushed into the transfer area 22 by the first pusher 33 in the next pushing cycle.

[0044] When the first drive mechanism 32 drives the first pusher 33 to move from the end position to the starting position, the side of the pusher 331 facing the starting position abuts against the second side wall of the sample holder 7 placed in the placement area 21 facing the analysis device 100. At this time, since the side of the pusher 331 that abuts against the sample holder 7 is an inclined surface, and the first pusher 33 is rotatably connected to the mounting base 31, the pusher 331 will rotate into the gap between the placement plate 2 and the base 1, thereby avoiding the sample holder 7. At this time, the elastic element 34 is stretched. When the first drive mechanism 32 drives the pusher 331 to the starting position or the pusher 331 is not in contact with the sample holder 7, the first pusher 33 rotates relative to the mounting base 31 due to the elastic restoring force of the elastic element 34. At this time, the pusher 331 will return to above the placement plate 2 so that it can push the subsequent sample holder 7 in the next pushing cycle.

[0045] The mounting base 31 has a mounting groove 312 with its opening facing the placement plate 2. A rotating shaft 313 is disposed within the mounting groove 312, and both ends of the rotating shaft 313 are rotatably connected to the side wall of the mounting groove 312. The first pushing member 33 is fixedly connected to the rotating shaft 313 by means of screws, snap-fit, or interference fit. This allows for a rotatable connection between the first pushing member 33 and the mounting base 31.

[0046] The side of the mounting base 31 facing the endpoint includes an abutment surface, a connecting surface, and an arcuate surface. The connecting surface is located between the abutment surface and the arcuate surface. The abutment surface is a side perpendicular to the horizontal plane, which abuts against the side of the first pusher 33 facing the starting position, forming a limiting part 311 to limit the first pusher 33 in the direction facing the starting position. The connecting surface is a side parallel to the horizontal plane, and the arcuate surface is used to avoid interfering with the rotation of the first pusher 33.

[0047] In this embodiment, the first pusher 33 has two push claws 331, which are spaced apart on the first pusher 33. The connection point between the first pusher 33 and the rotating shaft 313 is located between the two push claws 331. Correspondingly, there are two clearance openings 26, which are arranged one-to-one with the push claws 331. Thus, when the first pusher 33 moves between the starting position and the ending position, both push claws 331 simultaneously abut against the sample holder 7 to prevent the sample holder 7 from shifting.

[0048] The first driving mechanism 32 includes a first driving member 321, a first guide member 322, and a first transmission assembly 323. A first mounting member 11 is provided on the base 1. The first mounting member 11 can be a "U"-shaped mounting structure. The first guide member 322 is located on top of the first mounting member 11, and the mounting base 31 is slidably connected to the first guide member 322. The first driving member 321 is mounted on the mounting base 31, and the first driving member 321 drives the mounting base 31 to slide on the first guide member 322 via the first transmission assembly 323, thereby driving the first pushing member 33 to move between a starting position and an ending position. The first guide member 322 can be a guide rail; correspondingly, a slider is provided on the mounting base 31 to achieve a sliding connection.

[0049] The first transmission component 323 can be a screw drive component. In this embodiment, the first transmission component 323 is a belt drive component. Specifically, the first transmission component 323 includes a first pulley 3231, a second pulley 3232, and a first belt 3233. A second mounting member 12 can also be provided on the base 1. The second mounting member 12 is a mounting plate structure. The first pulley 3231 is rotatably mounted on the mounting plate. The first drive component 321 is a motor. The second pulley 3232 is coaxially mounted on the output shaft of the first drive component 321. The first belt 3233 is sleeved on the first pulley 3231 and the second pulley 3232. The mounting seat 31 is connected to the first belt 3233 through a belt clamping structure, so that when the first drive component 321 drives the first belt 3233 to move, it can drive the mounting seat 31 to move.

[0050] like Figure 5-6 The sample analyzer provided in this embodiment also includes a handle 8 and two collection components 9; there can be two second mounting components 12, which are symmetrically arranged on both sides of the first mounting component 11, and the first pulley 3231 is disposed on one of the second mounting components 12. Each second mounting component 12 includes a first side plate 121, a second side plate 122, a first guide plate 123, and a first limiting plate 124. The first side plate 121 is vertically disposed on the base 1, the lower surface of the second side plate 122 is perpendicular to the first side plate 121, and the second side plate 122 is parallel to the base 1. The first guide plate 123 and the first limiting plate 124 are vertically disposed on the upper surface of the second side plate 122, the first limiting plate 124 is disposed near the end position, and the first guide plate 123 and the first limiting plate 124 are perpendicular to each other.

[0051] Each collection component 9 corresponds to a second mounting component 12. The collection component 9 has a collection groove 91 for collecting dust and other debris that enters between the placement plate 2 and the base 1 through the clearance opening 26, preventing dust and other debris from interfering with the normal operation of the first drive mechanism 32. A pusher 331 is located between the clearance opening 26 and the collection groove 91. The bottom surface of the collection component 9 is slidably connected to the upper surface of the second side plate 122. A first guide plate 123 guides the sliding of the collection component 9 on the second side plate 122, and a limiting plate limits the end of the collection component 9 near its endpoint. A handle 8 connects two collection components 9, allowing simultaneous pulling of both components to facilitate cleaning of the collection groove 91.

[0052] A second guide plate 125 is provided on the side of the first guide plate 123 away from the first limiting plate 124. The first guide plate 123 and the second guide plate 125 are not parallel, and the opening formed by the second guide plates 125 of the two second mounting members 12 faces the starting position, so that after the collecting member 9 is removed from the second mounting member 12, it can be easily placed onto the second side plate 122 by the action of the second guide plate 125. A second limiting plate 126 is also provided on the upper side of the second guide plate 125, which is used to limit the upper end of the collecting member 9.

[0053] Please see Figure 7 The second driving mechanism 4 includes a second pushing member 41, a second driving member 42, a second transmission assembly 43, and a second guide member 44. The second driving member 42 is a motor, which is mounted on the base 1. A third mounting member 13 is also provided on the base 1. The third mounting member 13 is a mounting plate, which is located between the placement plate 2 and the base 1, and close to the analysis device 100. The second guide member 44 is a guide rail, which is located on the side of the third mounting member 13 close to the analysis device 100. The second pushing member 41 includes a first bent portion 411 and a second bent portion 412, which are arranged vertically. A slider is provided on the inner side of the first bent portion 411, which is slidably connected to the second guide member 44 through the slider. The first bent portion 411 is also connected to the second transmission assembly 43. The second bent portion 412 is located above the transfer area 22 and is used to abut against the first side wall in the width direction of the sample holder 7. The second transmission assembly 43 is connected to the second driving member 42, so that the second driving member 42 drives the second pushing member 41 to slide on the second guide member 44 through the second transmission assembly 43, so as to move the sample holder 7 in the transfer area 22 from the entrance of the transfer area 22 to the sampling position 222, and then to the exit of the transfer area 22.

[0054] The second transmission assembly 43 can be a screw drive assembly. In this embodiment, the second transmission assembly is a belt drive assembly. Specifically, the second transmission assembly 43 includes a third pulley 431, a fourth pulley 432, and a second belt 433. The third pulley 431 is mounted on the third mounting member 13, and the fourth pulley 432 is coaxially mounted on the output shaft of the second drive member 42. The second belt 433 is sleeved on the third pulley 431 and the fourth pulley 432. The first bent portion 411 is connected to the second belt 433 through a belt clamp, so that when the second drive member 42 drives the second belt 433 to move, it can drive the second push member 41 to move.

[0055] Please see Figure 8 The third drive mechanism 5 includes a third pusher 51, a third drive member 52, a third transmission assembly 53, and a third guide member 54. The third drive member 52 is a motor, which is mounted on the base 1. A fourth mounting member 14 is also mounted on the base 1. The fourth mounting member 14 is an L-shaped mounting plate structure, which is located between the placement plate 2 and the base 1, and directly below the recycling area 23 and the placement area 21. The third guide member 54 is a guide rail, which is mounted on the top of the fourth mounting member 14. The third pusher 51 includes a third bend 511, a fourth bend 512, and a fifth bend 513. The fourth bend 512 is located between the third bend 511 and the fifth bend 513, and the fourth bend 512 is perpendicular to the third bend 511 and the fifth bend 513 respectively. The third bend 511 and the fifth bend 513 form a clearance groove. A slider is provided on the third bend 511, which is slidably connected to the third guide member 54. The third bend 511 is also connected to the third transmission assembly 53. The fifth bend 513 is located above the outlet of the transfer area 22 and is used to abut against the second side wall of the sample holder 7 facing the analysis device 100. The fourth bend 512 is located between the transfer area 22 and the analysis device 100. The third transmission assembly 53 is connected to the third drive member 52, so that the third drive member 52 drives the third push member 51 to slide on the third guide member 54 through the third transmission assembly 53, so as to move the sample holder 7 with aspirated sample at the outlet of the transfer area 22 into the recovery area 23.

[0056] The third transmission assembly 53 can be a lead screw drive assembly. In this embodiment, the third transmission assembly is a belt drive assembly. Specifically, the third transmission assembly 53 includes a fifth pulley 531, a sixth pulley 532, and a third belt 533. The fifth pulley 531 is disposed on the third bend 511 of the third mounting plate, and the sixth pulley 532 is coaxially disposed on the output shaft of the third drive member 52. The third belt 533 is sleeved on the fifth pulley 531 and the sixth pulley 532. The third bend 511 is connected to the third belt 533 through a belt clamp, so that when the third drive member 52 drives the third belt 533 to move, it can drive the third push member 51 to move.

[0057] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0058] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0059] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0060] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0061] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0062] Please see Figure 1-2 This utility model provides a sample analyzer, which includes an analysis device 100 and an automatic sample introduction device 200. The automatic sample introduction device 200 may include a base 1, a placement plate 2, a sample rack pushing device 3, a second driving mechanism 4, a third driving mechanism 5, and multiple support columns 6. One end of each support column 6 is connected to the base 1, and the other end is connected to the bottom of the placement plate 2, thereby forming an installation gap between the placement plate 2 and the base 1. The placement plate 2 is divided into three areas: an insertion area 21, a transfer area 22, and a recovery area 23. The insertion area 21 and the recovery area 23 are spaced apart. The outlet of the insertion area 21 is connected to the inlet of the transfer area 22, and the inlet of the recovery area 23 is connected to the outlet of the transfer area 22.

[0063] The placement area 21, transfer area 22, and recovery area 23 are used to place sample racks 7. Each sample rack 7 is provided with one or more test tube placement positions, which are used to place test tubes containing samples. The samples can be human blood samples, urine samples, etc., depending on different testing needs.

[0064] The transfer area 22 may be equipped with a barcode scanning position 221 and a sample aspiration position 222. The barcode scanning position 221 is located between the sample aspiration position 222 and the inlet of the transfer area 22, and the sample aspiration position 222 is located between the barcode scanning position 221 and the outlet of the transfer area 22. A barcode scanning device may be provided at the interval between the placement area 21 and the recovery area 23. This device is used to scan and identify the barcode on the side wall of the test tube affixed to the sample holder 7 at the barcode scanning position 221, so that the analysis device 100 can record the patient's information and make it correspond one-to-one with the test results. The sample aspiration position 222 is used for the sampling needle of the analysis device 100 to aspirate the sample from the test tube placed on the sample holder 7, so that the analysis device 100 can test the sample. The analysis device 100 may be an instrument such as a urine analyzer, a coagulation analyzer, a blood cell analyzer, or a chemiluminescence immunoassay analyzer. This embodiment is not limited to this type of instrument.

[0065] The sample holder pushing device 3 is located in the placement area 21 and is used to push the sample holder 7 in the placement area 21 into the entrance of the transfer area 22. The second driving mechanism 4 is located in the transfer area 22 and is used to push the sample holder 7 at the entrance of the transfer area 22 to the barcode scanning position 221 for scanning by the barcode scanning device, and then push the scanned sample holder 7 to the sample suction position 222 for the sampling needle of the analyzer 100 to aspirate the sample. After the analyzer 100 has aspirated the sample from the test tube on the sample holder 7, the second driving mechanism 4 pushes the sample holder 7 to the exit of the transfer area 22. The third driving mechanism 5 is located at the exit of the transfer area 22 and is used to push the sample holder 7 at the exit of the transfer area 22 into the recovery area 23.

[0066] Please see Figure 3-4 The sample rack 7 can be a rectangular structure, which includes a rack body with multiple slots for placing test tubes. The first side wall of the rack body (the first side wall is one of the two side walls at the width of the rack body, corresponding to...) Figure 3 A guide groove 71 is provided on the right side wall of the guide groove 71. The two side walls of the guide groove 71 include a first inclined surface 711 and a second inclined surface 712 respectively. The connection between the first inclined surface 711 and the second inclined surface 712 protrudes into the guide groove 71.

[0067] First guide strips 24 are respectively provided on one side of the placement area 21 and the recycling area 23, as shown in the figure below. Figure 2As shown, the first guide bar 24 has an L-shaped structure and is located on the right side of the placement area 21 and the recycling area 23, and is connected to the placement plate 2. The first guide bar 24 and the placement plate 2 can be formed by bending the same plate, or they can be two separate components connected together by welding or screws.

[0068] During use, the first guide bar 24 extends into the guide groove 71. Due to the arrangement of the first inclined surface 711 and the second inclined surface 712 within the guide groove 71, the contact area between the guide groove 71 and the first guide bar 24 is reduced, thereby reducing the friction generated by their contact and facilitating the movement of the sample holder pusher 3. Simultaneously, it avoids uneven running resistance of the sample holder 7, preventing jamming or deviation, and ensuring the stability and positioning accuracy of the sample introduction.

[0069] Please see Figure 3-4 The connection between the first inclined surface 711 and the second inclined surface 712 is smoothly transitioned, further reducing the sliding friction between the first guide strip 24 and the guide groove 71.

[0070] A second sidewall is perpendicular to the first sidewall on the frame (the second sidewall is one of two sidewalls along the length of the frame, corresponding to...). Figure 3 The posterior wall of the middle, Figure 4 Multiple separator strips 72 are spaced apart on the front sidewall of the sample holder 7. The separator strips 72 are used to reduce friction between two adjacent sample holders 7, so that the second drive mechanism 4 can separate the sample holder 7 located at the entrance of the transfer area 22 from the adjacent sample holders 7. The upper part of the separator strip 72 is a rectangular structure and the lower part is a triangular structure, which can improve the stability of the separator strip 72 on the second sidewall of the sample holder 7.

[0071] The extension length of the separator 72 is less than the height of the frame, that is, the separator 72 does not extend to the entire height of the frame, to ensure that friction between two adjacent sample frames 7 can be reduced.

[0072] The second side wall of the frame and the third side wall (front side wall) arranged parallel to the second side wall are provided with multiple weight-reducing grooves 73. Each group consists of two partition bars 72, and the two partition bars 72 in each group are separated by weight-reducing grooves 73 to reduce the weight of the sample rack 7, so as to facilitate the operation of the operator and facilitate the movement of the sample rack pushing device 3, the second drive mechanism 4 and the third drive mechanism 5. A limiting step 74 is provided at the bottom of the second side wall of the frame, and a second guide bar 25 is provided on the transfer area 22. The second guide bar 25 is also L-shaped and is located on the side of the placement plate 2 closest to the analytical device 100. In use, the inner side of the second guide bar 25 abuts against the side wall of the limiting step 74 to prevent the sample rack 7 from tipping over when the second drive mechanism 4 moves the sample rack 7. There can be multiple second guide bars 25, which are spaced apart on the placement plate 2, and the distance between two adjacent second guide bars 25 is less than the length of the sample rack 7. This ensures that the sample rack 7 is always limited by the second guide bar 25 when it moves within the transfer area 22, and also reduces the manufacturing cost of the automatic sample feeding device 200.

[0073] Please see Figure 2 , 5 -6. The sample rack pushing device 3 may include a mounting base 31, a first driving mechanism 32, a first pushing member 33, and an elastic member 34. The first driving mechanism 32, the mounting base 31, and the elastic member 34 are located within the mounting gap formed between the placement plate 2 and the base 1. The first driving mechanism 32 and the mounting base 31 are disposed on the base 1. The mounting base 31 is slidably connected to the base 1, and the first driving mechanism 32 is drively connected to the mounting base 31. The first driving mechanism 32 is used to drive the mounting base 31 to move between a starting position (corresponding to the inlet of the placement area 21) and an ending position (corresponding to the outlet of the placement area 21). The first pushing member 33 is rotatably disposed on the mounting base 31. The first pushing member 33 is provided with at least one pusher 331. The side of the pusher 331 facing the starting position is a third inclined surface 3311 facing away from the base 1. The mounting base 31 is provided with a limiting part 311, which is used to abut against the side of the first pushing member 33 facing the starting position. The elastic element 34 is connected to both the mounting base 31 and the first pusher 33, and is used to make the first pusher 33 abut against the limiting part 311. The elastic element 34 can be a spring, which drives the first pusher 33 to rotate relative to the mounting base 31 through its own elastic restoring force.

[0074] The placement plate 2 is provided with at least one clearance opening 26 at the position corresponding to the placement area 21. The pusher 331 provided on the first pusher 33 passes through the clearance opening 26 and extends above the placement plate 2, that is, it is located in the placement area 21.

[0075] When the first drive mechanism 32 drives the first pusher 33 to move from the starting position to the ending position, during the movement, the pusher 331 abuts against the third side wall of the sample holder 7 on the side facing the ending position. Thus, under the action of the first drive mechanism 32, the sample holder 7 is sequentially pushed to the entrance of the transfer area 22. At this time, the newly placed sample holder 7 in the placement area 21 is between the pusher 331 and the starting position. This sample holder 7 will be pushed into the transfer area 22 by the first pusher 33 in the next pushing cycle.

[0076] When the first drive mechanism 32 drives the first pusher 33 to move from the end position to the starting position, the side of the pusher 331 facing the starting position abuts against the second side wall of the sample holder 7 placed in the placement area 21 facing the analysis device 100. At this time, since the side of the pusher 331 that abuts against the sample holder 7 is an inclined surface, and the first pusher 33 is rotatably connected to the mounting base 31, the pusher 331 will rotate into the gap between the placement plate 2 and the base 1, thereby avoiding the sample holder 7. At this time, the elastic element 34 is stretched. When the first drive mechanism 32 drives the pusher 331 to the starting position or the pusher 331 is not in contact with the sample holder 7, the first pusher 33 rotates relative to the mounting base 31 due to the elastic restoring force of the elastic element 34. At this time, the pusher 331 will return to above the placement plate 2 so that it can push the subsequent sample holder 7 in the next pushing cycle.

[0077] The mounting base 31 has a mounting groove 312 with its opening facing the placement plate 2. A rotating shaft 313 is disposed within the mounting groove 312, and both ends of the rotating shaft 313 are rotatably connected to the side wall of the mounting groove 312. The first pushing member 33 is fixedly connected to the rotating shaft 313 by means of screws, snap-fit, or interference fit. This allows for a rotatable connection between the first pushing member 33 and the mounting base 31.

[0078] The side of the mounting base 31 facing the endpoint includes an abutment surface, a connecting surface, and an arcuate surface. The connecting surface is located between the abutment surface and the arcuate surface. The abutment surface is a side perpendicular to the horizontal plane, which abuts against the side of the first pusher 33 facing the starting position, forming a limiting part 311 to limit the first pusher 33 in the direction facing the starting position. The connecting surface is a side parallel to the horizontal plane, and the arcuate surface is used to avoid interfering with the rotation of the first pusher 33.

[0079] In this embodiment, the first pusher 33 has two push claws 331, which are spaced apart on the first pusher 33. The connection point between the first pusher 33 and the rotating shaft 313 is located between the two push claws 331. Correspondingly, there are two clearance openings 26, which are arranged one-to-one with the push claws 331. Thus, when the first pusher 33 moves between the starting position and the ending position, both push claws 331 simultaneously abut against the sample holder 7 to prevent the sample holder 7 from shifting.

[0080] The first driving mechanism 32 includes a first driving member 321, a first guide member 322, and a first transmission assembly 323. A first mounting member 11 is provided on the base 1. The first mounting member 11 can be a "U"-shaped mounting structure. The first guide member 322 is located on top of the first mounting member 11, and the mounting base 31 is slidably connected to the first guide member 322. The first driving member 321 is mounted on the mounting base 31, and the first driving member 321 drives the mounting base 31 to slide on the first guide member 322 via the first transmission assembly 323, thereby driving the first pushing member 33 to move between a starting position and an ending position. The first guide member 322 can be a guide rail; correspondingly, a slider is provided on the mounting base 31 to achieve a sliding connection.

[0081] The first transmission component 323 can be a screw drive component. In this embodiment, the first transmission component 323 is a belt drive component. Specifically, the first transmission component 323 includes a first pulley 3231, a second pulley 3232, and a first belt 3233. A second mounting member 12 can also be provided on the base 1. The second mounting member 12 is a mounting plate structure. The first pulley 3231 is rotatably mounted on the mounting plate. The first drive component 321 is a motor. The second pulley 3232 is coaxially mounted on the output shaft of the first drive component 321. The first belt 3233 is sleeved on the first pulley 3231 and the second pulley 3232. The mounting seat 31 is connected to the first belt 3233 through a belt clamping structure, so that when the first drive component 321 drives the first belt 3233 to move, it can drive the mounting seat 31 to move.

[0082] like Figure 5-6 The sample analyzer provided in this embodiment also includes a handle 8 and two collection components 9; there can be two second mounting components 12, which are symmetrically arranged on both sides of the first mounting component 11, and the first pulley 3231 is disposed on one of the second mounting components 12. Each second mounting component 12 includes a first side plate 121, a second side plate 122, a first guide plate 123, and a first limiting plate 124. The first side plate 121 is vertically disposed on the base 1, the lower surface of the second side plate 122 is perpendicular to the first side plate 121, and the second side plate 122 is parallel to the base 1. The first guide plate 123 and the first limiting plate 124 are vertically disposed on the upper surface of the second side plate 122, the first limiting plate 124 is disposed near the end position, and the first guide plate 123 and the first limiting plate 124 are perpendicular to each other.

[0083] Each collection component 9 corresponds to a second mounting component 12. The collection component 9 has a collection groove 91 for collecting dust and other debris that enters between the placement plate 2 and the base 1 through the clearance opening 26, preventing dust and other debris from interfering with the normal operation of the first drive mechanism 32. A pusher 331 is located between the clearance opening 26 and the collection groove 91. The bottom surface of the collection component 9 is slidably connected to the upper surface of the second side plate 122. A first guide plate 123 guides the sliding of the collection component 9 on the second side plate 122, and a limiting plate limits the end of the collection component 9 near its endpoint. A handle 8 connects two collection components 9, allowing simultaneous pulling of both components to facilitate cleaning of the collection groove 91.

[0084] A second guide plate 125 is provided on the side of the first guide member 322 away from the limiting plate. The second guide plate 125 is not parallel to the first guide member 322, and the opening formed by the second guide plates 125 of the two second mounting members 12 is oriented towards the starting position, so that after the collecting member 9 is removed from the second mounting member 12, it can be easily placed onto the second side plate 122 by the action of the second guide plate 125. A second limiting plate 126 is also provided on the upper side of the second guide plate 125, which is used to limit the upper end of the collecting member 9.

[0085] Please see Figure 7 The second driving mechanism 4 includes a second pushing member 41, a second driving member 42, a second transmission assembly 43, and a second guide member 44. The second driving member 42 is a motor, which is mounted on the base 1. A third mounting member 13 is also provided on the base 1. The third mounting member 13 is a mounting plate, which is located between the placement plate 2 and the base 1, and close to the analysis device 100. The second guide member 44 is a guide rail, which is located on the side of the third mounting member 13 close to the analysis device 100. The second pushing member 41 includes a first bent portion 411 and a second bent portion 412, which are arranged vertically. A slider is provided on the inner side of the first bent portion 411, which is slidably connected to the second guide member 44 through the slider. The first bent portion 411 is also connected to the second transmission assembly 43. The second bent portion 412 is located above the transfer area 22 and is used to abut against the first side wall in the width direction of the sample holder 7. The second transmission assembly 43 is connected to the second driving member 42, so that the second driving member 42 drives the second pushing member 41 to slide on the second guide member 44 through the second transmission assembly 43, so as to move the sample holder 7 in the transfer area 22 from the entrance of the transfer area 22 to the sampling position 222, and then to the exit of the transfer area 22.

[0086] The second transmission assembly 43 can be a screw drive assembly. In this embodiment, the second transmission assembly is a belt drive assembly. Specifically, the second transmission assembly 43 includes a third pulley 431, a fourth pulley 432, and a second belt 433. The third pulley 431 is mounted on the third mounting member 13, and the fourth pulley 432 is coaxially mounted on the output shaft of the second drive member 42. The second belt 433 is sleeved on the third pulley 431 and the fourth pulley 432. The first bent portion 411 is connected to the second belt 433 through a belt clamp, so that when the second drive member 42 drives the second belt 433 to move, it can drive the second push member 41 to move.

[0087] Please see Figure 8 The third drive mechanism 5 includes a third pusher 51, a third drive member 52, a third transmission assembly 53, and a third guide member 54. The third drive member 52 is a motor, which is mounted on the base 1. A fourth mounting member 14 is also mounted on the base 1. The fourth mounting member 14 is an L-shaped mounting plate structure, which is located between the placement plate 2 and the base 1, and directly below the recycling area 23 and the placement area 21. The third guide member 54 is a guide rail, which is mounted on the top of the fourth mounting member 14. The third pusher 51 includes a third bend 511, a fourth bend 512, and a fifth bend 513. The fourth bend 512 is located between the third bend 511 and the fifth bend 513, and the fourth bend 512 is perpendicular to the third bend 511 and the fifth bend 513 respectively. The third bend 511 and the fifth bend 513 form a clearance groove. A slider is provided on the third bend 511, which is slidably connected to the third guide member 54. The third bend 511 is also connected to the third transmission assembly 53. The fifth bend 513 is located above the outlet of the transfer area 22 and is used to abut against the second side wall of the sample holder 7 facing the analysis device 100. The fourth bend 512 is located between the transfer area 22 and the analysis device 100. The third transmission assembly 53 is connected to the third drive member 52, so that the third drive member 52 drives the third push member 51 to slide on the third guide member 54 through the third transmission assembly 53, so as to move the sample holder 7 with aspirated sample at the outlet of the transfer area 22 into the recovery area 23.

[0088] The third transmission assembly 53 can be a lead screw drive assembly. In this embodiment, the third transmission assembly is a belt drive assembly. Specifically, the third transmission assembly 53 includes a fifth pulley 531, a sixth pulley 532, and a third belt 533. The fifth pulley 531 is disposed on the third bend 511 of the third mounting plate, and the sixth pulley 532 is coaxially disposed on the output shaft of the third drive member 52. The third belt 533 is sleeved on the fifth pulley 531 and the sixth pulley 532. The third bend 511 is connected to the third belt 533 through a belt clamp, so that when the third drive member 52 drives the third belt 533 to move, it can drive the third push member 51 to move.

[0089] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0090] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A sample holder pushing device, characterized in that, include: Base, mounting base, first drive mechanism, first pusher and elastic element; The first drive mechanism and the mounting base are disposed on the base, and the mounting base is slidably connected to the base; the first drive mechanism is drively connected to the mounting base, and the first drive mechanism is used to drive the mounting base to move between a starting position and an ending position. The first pusher is rotatably mounted on the mounting base, and the first pusher is provided with at least one pusher claw, the side of the pusher claw facing the starting position being a third inclined surface facing away from the base; The mounting base is provided with a limiting part, which is used to abut against the side of the first pusher facing the starting position; The elastic element is connected to the mounting base and the first pushing element respectively, and is used to make the first pushing element abut against the limiting part.

2. The sample holder pushing device according to claim 1, characterized in that: It also includes a rotating shaft, and the mounting base is provided with a mounting groove. The rotating shaft is rotatably connected to the side wall of the mounting groove, and the first pushing member is fixedly connected to the rotating shaft.

3. The sample holder pushing device according to claim 2, characterized in that: The elastic element is a spring.

4. The sample holder pushing device according to claim 2, characterized in that: There are two push claws, which are spaced apart on the first pusher. The connection point between the first pusher and the rotating shaft is located between the two push claws.

5. A sample holder pushing device according to claim 1, characterized in that: The first driving mechanism includes a first driving member, a first guide member, and a first transmission assembly. The first driving member and the first guide member are disposed on the base, and the mounting base is slidably connected to the first guide member. The first driving member drives the mounting base to slide on the first guide member through the first transmission assembly.

6. A sample holder pushing device according to claim 5, characterized in that: The first transmission assembly includes a first pulley, a second pulley, and a first belt; The first pulley is mounted on the base, the second pulley is connected to the first drive component, the first belt is sleeved on the first pulley and the second pulley, and the mounting base is connected to the first belt.

7. A sample analyzer, characterized in that: The sample holder pushing device as described in any one of claims 1-6 further includes an automatic sample feeding device and an analysis device, wherein the automatic sample feeding device is disposed on one side of the analysis device, and the analysis device is used to detect the sample; The automatic sample feeding device includes an insertion zone, a transfer zone, a recovery zone, a second drive mechanism, and a third drive mechanism; the inlet of the transfer zone is connected to the outlet of the insertion zone, and the outlet of the transfer zone is connected to the inlet of the recovery zone; The sample rack pushing device is located below the placement area. When the first driving mechanism drives the first pushing member to move from the starting position to the ending position, the pusher on the first pushing member extends into the placement area and abuts against the side of the sample rack to push the sample rack into the transfer area. The transfer area is provided with a sample suction position located between the inlet and outlet of the transfer area. The second drive mechanism is used to push the sample holder from the inlet of the transfer area to the sample suction position so that the analytical device can aspirate the sample. After the sample is aspirated, the sample holder is then transferred to the outlet of the transfer area. The third drive mechanism is used to transfer the sample rack with absorbed samples at the exit of the transfer area to the recovery area.

8. A sample analyzer according to claim 7, characterized in that: The second drive mechanism includes a second pusher, a second drive member, a second guide member, and a second transmission assembly; The second driving member and the second guide member are disposed on the base. The second pushing member is slidably connected to the second guide member, and the second guide member is partially located above the transfer area for contacting the side of the sample holder. The second driving member drives the second pushing member to slide on the second guide member through the second transmission assembly.

9. A sample analyzer according to claim 8, characterized in that: The third drive mechanism includes a third pusher, a third drive member, a third guide member, and a third transmission assembly; The third driving member and the third guiding member are mounted on the base. The third pushing member is slidably connected to the third guiding member, and the third guiding member is partially located above the outlet of the transfer area for contacting the side of the sample holder. The third driving component drives the third pushing component to slide on the third guide component via the third transmission assembly.

10. A sample analyzer according to claim 9, characterized in that: The second transmission assembly includes a third pulley, a fourth pulley, and a second belt. The third pulley is disposed on the base and is connected to the second driving member. The second belt is sleeved on the third pulley and the fourth pulley, and the second pushing member is connected to the second belt. The third transmission assembly includes a fifth pulley, a sixth pulley, and a third belt. The fifth pulley is mounted on the base and connected to the third driving component. The third belt is sleeved on the fifth and sixth pulleys, and the third pushing component is connected to the third belt.

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