Sample analyzer and sample rack transport device

Abstract

A sample analyzer and a sample rack conveying device, the sample analyzer comprising a sample rack conveying device, a sample dispensing device, a reagent dispensing device and a sample detecting device, the sample rack conveying device being used for conveying a sample rack at least in a first direction and a second direction opposite to the first direction, the sample dispensing device and the reagent dispensing device being used for sucking and dispensing a sample and a reagent into a reaction container respectively, and the sample detecting device being used for detecting a test sample made of the sample and the reagent. The sample rack conveying device comprises a frame, a push-pull mechanism, a first driving mechanism and a second driving mechanism. The push-pull mechanism is in sliding connection with the frame. The push-pull mechanism comprises a pushing member and a pulling member. The pushing member is used for pushing the sample rack to move in the first direction. The pulling member is used for pulling the sample rack to move in the second direction. The first driving mechanism is used for driving the push-pull mechanism to move back and forth in the first direction and the second direction. The second driving mechanism is used for driving the pulling member to disengage from or engage with a matching part of the sample rack.

Description

Technical Field

[0001] This invention relates to the field of sample analysis technology, and more particularly to a sample analyzer and a sample rack transport device. Background Technology

[0002] To achieve bidirectional transport of sample racks, existing sample analyzers often employ two sets of belt conveyor mechanisms or a single belt conveyor mechanism with two pushing mechanisms, resulting in complex structures and high costs. Summary of the Invention

[0003] In view of this, the present invention proposes a sample analyzer and a sample rack transport device.

[0004] The sample analyzer proposed in the first aspect of the present invention includes:

[0005] A sample rack transport device, the sample rack transport device being used at least for transporting a sample rack along a first direction and a second direction opposite to the first direction, the sample rack carrying a sample container containing a sample;

[0006] A sample dispensing device, the sample dispensing device being used to draw the sample from the sample container and dispense the drawn sample into a reaction vessel;

[0007] A reagent dispensing device is used to draw reagents from a reagent container and dispense the drawn reagents into a reaction vessel;

[0008] A sample detection device for detecting a sample made from the sample and the reagent in the reaction vessel;

[0009] The sample rack is also provided with a mating part, wherein the sample rack transport device includes:

[0010] frame;

[0011] A push-pull mechanism is slidably connected to the frame. The push-pull mechanism includes a pusher and a puller. The puller is connected to the pusher. The pusher is used to push the sample rack to move along the first direction. The puller is used to cooperate with the mating part of the sample rack to pull the sample rack to move along the second direction.

[0012] A first driving mechanism is connected to the push-pull mechanism, and the first driving mechanism is used to drive the push-pull mechanism to reciprocate along the first direction and the second direction;

[0013] A second driving mechanism is connected to the frame or the pulling member. The second driving mechanism is used to drive the pulling member to disengage from the mating part of the sample frame when the sample frame moves to a preset position along the first direction, and to drive the pulling member to engage with the mating part of the sample frame when the sample frame moves to the preset position along the second direction.

[0014] The sample rack transport device according to a second aspect of the present invention is used for transporting a sample rack along a first direction and a second direction opposite to the first direction, wherein the sample rack carries a sample container containing a sample and the sample rack is provided with a mating part, and the sample rack transport device includes:

[0015] frame;

[0016] A push-pull mechanism is slidably connected to the frame. The push-pull mechanism includes a pusher and a puller. The puller is connected to the pusher. The pusher is used to push the sample rack to move along the first direction. The puller is used to cooperate with the mating part of the sample rack to pull the sample rack to move along the second direction.

[0017] A first driving mechanism is connected to the push-pull mechanism, and the first driving mechanism is used to drive the push-pull mechanism to reciprocate along the first direction and the second direction;

[0018] A second driving mechanism is connected to the frame or the pulling member. The second driving mechanism is used to drive the pulling member to disengage from the mating part of the sample frame when the sample frame moves to a preset position along the first direction, and to drive the pulling member to engage with the mating part of the sample frame when the sample frame moves to the preset position along the second direction.

[0019] As can be seen from the above technical solutions, the sample analyzer proposed in the first aspect of the present invention, by setting a sample rack transport device including a push-pull mechanism, the push-pull mechanism includes a pushing member and a pulling member. A first driving mechanism drives the pushing member to move along a first direction to push the sample rack to move along the first direction, and the first driving mechanism drives the pulling member to move along a second direction to pull the sample rack to move along the second direction. In this way, the sample rack transport device can realize bidirectional transport of the sample rack. In addition, by setting a second driving mechanism to drive the pulling member to disengage from the mating part of the sample rack when the sample rack moves to a preset position along the first direction, and to drive the pulling member to engage with the mating part of the sample rack when the sample rack moves to a preset position along the second direction, the pulling member does not affect the transport of the sample rack along the first direction, and can realize the pulling member to pull the sample rack to move along the second direction. Compared with the existing method of using two sets of belt conveyor mechanisms or one belt conveyor mechanism with two sets of pushing mechanisms, this embodiment can effectively simplify the device, thereby reducing the control difficulty and saving costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a sample analyzer proposed in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of a sample rack transport device according to an embodiment of the present invention;

[0023] Figure 3 This is a partial structural schematic diagram of a sample rack transport device according to an embodiment of the present invention;

[0024] Figure 4 This is a partial structural schematic diagram of a sample rack transport device according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the sample holder from a first perspective according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the sample holder from a second perspective according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of a pulling member according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of a modified embodiment of the second driving mechanism proposed in one embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of a modified embodiment of the second driving mechanism proposed in another embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram illustrating the cooperation of the pusher, puller, and reset assembly according to an embodiment of the present invention;

[0031] Figure 11 yes Figure 10 An exploded view of the structure shown. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figure 1 and Figure 2 As shown, an embodiment of the present invention proposes a sample analyzer 1000, which includes a sample rack transport device 100, a sample dispensing device 200, a reagent dispensing device 300, and a sample detection device 400.

[0034] The sample rack transport device 100 is used at least to transport the sample rack 800 along a first direction X and a second direction Y opposite to the first direction X, the sample rack 800 carrying a sample container containing a sample.

[0035] The sample dispensing device 200 is used to draw samples from a sample container and dispense the drawn samples into a reaction container. In some embodiments, the sample dispensing device 200 includes a sample needle, which moves in two or three dimensions in space via a two-dimensional or three-dimensional drive mechanism, thereby allowing the sample needle to move into the sample container to draw samples and dispense the drawn samples into the reaction container.

[0036] The reagent dispensing device 300 is used to draw reagents from a reagent container and dispense the drawn reagents into a reaction vessel. In some embodiments, the reagent dispensing device 300 includes a reagent needle, which moves in two or three dimensions in space via a two-dimensional or three-dimensional driving mechanism, thereby allowing the reagent needle to move into the reagent container to draw reagents and dispense the drawn reagents into the reaction vessel.

[0037] The sample detection device 400 is used to detect a sample made from a sample and reagents in a reaction vessel. In some embodiments, the sample detection device 400 includes a photometric component, which is used to perform photometric measurements on the incubated reaction solution to obtain the reaction data of the sample. For example, the photometric component detects the luminescence intensity of the reaction solution to be tested and calculates the concentration of the analyte in the sample through a calibration curve.

[0038] like Figures 2 to 6As shown, in some embodiments, the sample rack 800 is further provided with a mating part 801. The sample rack transport device 100 includes a frame 10, a push-pull mechanism 20, a first drive mechanism 30, and a second drive mechanism 40. The push-pull mechanism 20 is slidably connected to the frame 10. The push-pull mechanism 20 includes a pushing member 21 and a pulling member 22. The pulling member 22 is connected to the pushing member 21. The pushing member 21 is used to push the sample rack 800 to move along a first direction X. The pulling member 22 is used to cooperate with the mating part 801 of the sample rack 800 to pull the sample rack 800 to move along a second direction Y. The connection between the pulling member 22 and the pushing member 21 can be direct or indirect.

[0039] The first drive mechanism 30 is connected to the push-pull mechanism 20. The first drive mechanism 30 drives the push-pull mechanism 20 to reciprocate along the first direction X and the second direction Y, thereby enabling the push-pull mechanism 20 to drive the sample rack 800 to move along the first direction X and the second direction Y. The second drive mechanism 40 is connected to the frame 10 or the pull member 22. The second drive mechanism 40 drives the pull member 22 to disengage from the mating part 801 of the sample rack 800 when the sample rack 800 moves to a preset position along the first direction X, and drives the pull member 22 to engage with the mating part 801 of the sample rack 800 when the sample rack 800 moves to a preset position along the second direction Y.

[0040] For example, the sample rack 800 includes a first side 802, a second side 803 opposite to the first side 802, and a third side 804 connecting the first side 802 and the second side 803. The mating part 801 is a groove provided on the third side 804. Of course, the mating part 801 is not limited to a groove; it can also be a protrusion or other mating structure, depending on the actual design requirements. The sample rack transport device 100 drives the pusher 21 to abut against the first side 802 of the sample rack 800 and move along the first direction X via the first drive mechanism 30 to push the sample rack 800 to move along the first direction X. The sample rack transport device 100 drives the puller 22 embedded in the groove to move along the second direction Y via the first drive mechanism 30 to pull the sample rack 800 to move along the second direction Y.

[0041] The sample analyzer 1000 proposed in this embodiment of the invention includes a sample rack transport device 100 comprising a push-pull mechanism 20, which includes a pusher 21 and a puller 22. A first drive mechanism 30 drives the pusher 21 to move along a first direction X to push the sample rack 800 to move along the first direction X, and the first drive mechanism 30 drives the puller 22 to move along a second direction Y to pull the sample rack 800 to move along the second direction Y. In this way, the sample rack transport device 100 can realize bidirectional transport of the sample rack 800. Furthermore, by setting the second drive mechanism 40 to drive the pulling member 22 to disengage from the mating part 801 of the sample rack 800 when the sample rack 800 moves to the preset position along the first direction X, and to drive the pulling member 22 to engage with the mating part 801 of the sample rack 800 when the sample rack 800 moves to the preset position along the second direction Y, the pulling member 22 does not affect the conveying of the sample rack 800 along the first direction X, and can realize the pulling member 22 to pull the sample rack 800 to move along the second direction Y. Compared with the existing method of using two sets of belt conveyor mechanisms or one set of belt conveyor mechanism with two sets of pushing mechanisms, this embodiment can effectively simplify the device, thereby reducing the control difficulty and saving costs.

[0042] like Figures 2 to 4 As shown, in some embodiments, the frame 10 includes a frame body 11 and a first slide rail 12. The first slide rail 12 is mounted on the frame body 11 along a first direction X. The push-pull mechanism 20 also includes a first slider 23. The first slider 23 is slidably engaged with the first slide rail 12. The push-pull mechanism 20 is mounted on the first slider 23. The push-pull mechanism 20 is slidably connected to the frame 10 through the engagement of the first slider 23 and the first slide rail 12.

[0043] Of course, the sliding engagement between the first slider 23 and the frame 10 is not limited to the above-described manner. For example, in some other embodiments, the frame 10 includes a frame body 11 and at least two sliding rods. The first slider 23 is provided with a sliding hole, and the first slider 23 is slidably connected to the frame 10 by means of the sliding rods passing through the sliding hole.

[0044] In some embodiments, the first drive mechanism 30 includes a first motor 31 and a first transmission assembly 32. The first motor 31 is mounted on the frame 10, and the first transmission assembly 32 connects the first motor 31 and the first slider 23. The first motor 31 drives the first slider 23 to reciprocate along a first direction X and a second direction Y through the first transmission assembly 32, thereby driving the push-pull mechanism 20 to reciprocate along the first direction X and the second direction Y. Optionally, the first transmission assembly 32 can be a belt drive assembly, a chain drive assembly, or a ball screw assembly, depending on the actual design requirements.

[0045] like Figure 4 and Figure 7As shown, in some embodiments, the pulling member 22 is rotatably connected to the pushing member 21. The pulling member 22 includes a claw portion 221 and a release portion 222. The claw portion 221 is used to engage with the mating portion 801 of the sample holder 800. The second drive mechanism 40 includes a pushing component 41, which is mounted on the frame 10. The pushing component 41 is used to push the sample holder 800 to move along the first direction X to a preset position when the push-pull mechanism 20 drives the sample holder 800 to abut against the release portion 222, so that the claw portion 221 rotates to disengage from the mating portion 801 of the sample holder 800.

[0046] In some embodiments, the pushing assembly 41 includes a connector 411 and a roller 412. The connector 411 includes a connecting end and an abutting end, with the connecting end mounted on the frame 10. The roller 412 is rotatably mounted on the abutting end and is used to abut the release part 222. In this embodiment, by providing the roller 412, the friction between the pushing assembly 41 and the release part 222 can be reduced, wear between the pushing assembly 41 and the release part 222 can be reduced, and the service life of the equipment can be extended. Optionally, the roller 412 can be a rubber wheel or a bearing. Of course, the pushing assembly 41 may also not have a roller 412. For example, the pushing assembly 41 may only include the connector 411, and the abutting end of the connector 411 may be used to abut the release part 222, as long as the pushing assembly 41 can push the release part 222, causing the claw part 221 to rotate and disengage from the mating part 801 of the sample holder 800.

[0047] It should be noted that the second drive mechanism 40 is not limited to using the aforementioned push component 41. For example, in some other embodiments, such as... Figure 8 As shown, the second drive mechanism 40 includes a second motor 42, which is connected to the pusher 21. The puller 22 is mounted on the output shaft of the second motor 42. The second motor 42 is used to drive the puller 22 to rotate so as to engage or disengage with the mating part 801 of the sample holder 800.

[0048] For example, the second motor 42 is mounted on the pusher 21, and the puller 22 is connected to the output shaft of the second motor 42. For instance, the second motor 42 can be mounted at the bottom of the pusher 21, with its output shaft extending through the pusher 21 to its top. The puller 22 is connected to the output shaft of the second motor 42. Alternatively, the second motor 42 can be mounted at the top of the pusher 21, depending on the specific design requirements. When the sample holder 800 moves to a preset position along the first direction X, the second motor 42 drives the puller 22 to rotate forward, disengaging the puller 22 from the mating part 801 of the sample holder 800. When the sample holder 800 moves to a preset position along the second direction Y, the second motor 42 drives the puller 22 to rotate in reverse, engaging the puller 22 with the mating part 801 of the sample holder 800. Of course, the second motor 42 is not limited to being directly connected to the pusher 21. For example, in some other embodiments, both the second motor 42 and the pusher 21 are mounted on the first slider 23, that is, the second motor 42 is indirectly connected to the pusher 21 through the first slider 23.

[0049] It should be noted that the second drive mechanism 40 is not limited to using the aforementioned push component 41 and second motor 42. For example, in some other embodiments, such as... Figure 9 As shown, the second drive mechanism 40 includes a telescopic drive assembly 43, which is connected to the pusher 21. The puller 22 is mounted on the telescopic drive assembly 43. The telescopic drive assembly 43 is used to drive the puller 22 to move along a third direction M to engage or disengage with the mating part 801 of the frame. The third direction M is perpendicular to the first direction X.

[0050] Exemplarily, the telescopic drive assembly 43 includes an electromagnet assembly mounted on the pusher 21. The puller 22 is connected to the core of the electromagnet. When the sample holder 800 moves to a preset position along the first direction X, the electromagnet assembly drives the puller 22 to retract, disengaging the puller 22 from the mating part 801 of the sample holder 800. When the sample holder 800 moves to a preset position along the second direction Y, the electromagnet assembly drives the puller 22 to extend, engaging with the mating part 801 of the sample holder 800. Of course, the electromagnet assembly is not limited to direct connection with the pusher 21. For example, in some other embodiments, both the electromagnet assembly and the pusher 21 are mounted on the first slider 23, meaning the electromagnet assembly is indirectly connected to the pusher 21 via the first slider 23.

[0051] It should also be noted that the telescopic drive assembly 43 is not limited to using an electromagnet assembly. For example, in some other embodiments, the telescopic drive assembly 43 can also be a cylinder, an electric telescopic rod, a motor with gear transmission assembly, or a motor with cam mechanism, etc. The specific design can be determined according to actual design needs.

[0052] like Figure 10 As shown, in some embodiments, the sample rack transport device 100 further includes a reset assembly 50, which is connected between the pusher 21 and the puller 22. The reset assembly 50 is used to provide a restoring force so that when the pusher 41 is disengaged from the release part 222, the drive claw part 221 rotates and engages with the mating part 801 of the sample rack 800.

[0053] like Figure 10 As shown, in some embodiments, the pushing member 21 includes a first surface 211 and a second surface 212 opposite to the first surface 211 in the vertical direction. The pulling member 22 is rotatably disposed on the first surface 211 of the pushing member 21. The first surface 211 of the pushing member 21 has a mounting portion 213. The reset assembly 50 includes a tension spring connected between the hook portion 221 and the mounting portion 213. In this embodiment, the reset of the pulling member 22 is achieved by setting a tension spring, which has a simple structure and can reduce equipment costs. It should be noted that the pulling member 22 is not limited to being disposed on the first surface 211 of the pushing member 21. In other embodiments, the pulling member 22 can also be disposed on the second surface 212 of the pushing member 21, depending on the actual design requirements.

[0054] It should also be noted that the reset component 50 is not limited to being configured as a tension spring. For example, in some other embodiments, the reset component 50 includes a torsion spring connected between the pusher 21 and the puller 22, and the puller 22 is reset by the torque provided by the torsion spring.

[0055] like Figure 11 As shown, in some embodiments, the first surface 211 of the pusher 21 is provided with a rotating shaft 214, the puller 22 is provided with a mounting hole 223, and the sample rack transport device 100 further includes a bearing assembly 60. The bearing assembly 60 is embedded in the mounting hole 223 and sleeved on the rotating shaft 214 to realize the rotational connection between the puller 22 and the pusher 21. In this embodiment, the bearing assembly 60 can reduce the friction between the puller 22 and the rotating shaft 214, making the rotation of the puller 22 smoother, while reducing the wear of the rotating shaft 214. Of course, it is also possible for the sample rack transport device 100 not to provide a bearing assembly 60. In some other embodiments, the rotating shaft 214 directly passes through the mounting hole 223.

[0056] It should be noted that the positions of the rotating shaft 214 and the mounting hole 223 can be interchanged. That is, the first surface 211 of the pushing member 21 is provided with the mounting hole 223, while the pulling member 22 is provided with the rotating shaft 214.

[0057] In some embodiments, the torsion spring described above is sleeved on the rotating shaft 214, one end of the torsion spring is connected to the pusher 21, and the other end of the torsion spring is connected to the puller 22.

[0058] like Figure 11 As shown, in some embodiments, a limiting structure 70 is provided between the pushing member 21 and the pulling member 22. The limiting structure 70 is used to limit the rotation range of the pulling member 22 relative to the pushing member 21. In this embodiment, by setting the limiting structure 70, the position of the pulling member 22 relative to the pushing member 21 can be limited, avoiding misalignment of the pulling member 22, which would prevent the push-pull mechanism 20 from properly cooperating with the sample holder 800.

[0059] In some embodiments, the limiting structure 70 includes a limiting groove 71 and a limiting post 72. The limiting groove 71 is disposed on the pusher 21, and the limiting post 72 is connected to the puller 22. One end of the limiting post 72 is embedded in the limiting groove 71, and the limiting groove 71 limits the rotation range of the limiting post 72.

[0060] For example, the limiting groove 71 is an arc-shaped groove provided on the pusher 21, and the rotation range of the limiting post 72 is limited by the two ends of the arc-shaped groove. Of course, the limiting groove 71 is not limited to being an arc-shaped groove. The limiting groove 71 can also be a groove of other shapes, as long as the two opposite sidewalls of the limiting groove 71 can limit the rotation range of the limiting post 72.

[0061] It should be noted that the positions of the limiting groove 71 and the limiting post 72 can be interchanged. That is, the limiting groove 71 can be located on the pulling member 22, and the limiting post 72 can be connected to the pushing member 21.

[0062] It should also be noted that the limiting structure 70 is not limited to the matching method of limiting groove 71 and limiting post 72. For example, in some other embodiments, the limiting structure 70 includes two protrusions and a protrusion. The two protrusions are spaced apart from the pusher 21, and the protrusion is connected to the puller 22. The protrusion is embedded between the two protrusions, and the two protrusions together limit the rotation range of the protrusion, thereby limiting the rotation range of the puller 22 relative to the pusher 21.

[0063] like Figure 2 and Figure 3As shown, in some embodiments, the sample rack transport device 100 further includes a first scheduling mechanism 80 and a second scheduling mechanism 90. The first scheduling mechanism 80 is used to schedule the sample rack 800 along a first direction X and a second direction Y. The second scheduling mechanism 90 is used to schedule the sample rack 800 along a third direction M, which is perpendicular to the first direction X. A push-pull mechanism 20 transports the sample rack 800 between the first scheduling mechanism 80 and the second scheduling mechanism 90. When the sample rack 800 is scheduled from the first scheduling mechanism 80 to the second scheduling mechanism 90, the first scheduling mechanism 80 schedules the sample rack 800 to the push-pull mechanism 20 along the second direction Y. The push-pull mechanism 20 then pulls the sample rack 800 to the second scheduling mechanism 90, and the second scheduling mechanism 90 schedules the sample rack 800 to the designated position along the third direction M. When the sample rack 800 is dispatched from the second dispatching mechanism 90 to the third dispatching mechanism, the third dispatching mechanism dispatches the sample rack 800 to the push-pull mechanism 20 along the third direction M. The push-pull mechanism 20 pushes the sample rack 800 to the first dispatching mechanism 80. The first dispatching mechanism 80 dispatches the sample rack 800 to the designated position along the first direction X.

[0064] In some embodiments, the conveying direction of the first scheduling mechanism 80 is aligned with the push-pull mechanism 20. Optionally, the first scheduling mechanism 80 is a belt conveyor, a roller conveyor, or a claw conveyor.

[0065] In some embodiments, the second scheduling mechanism 90 includes a support 91, a scheduling component 92, and a third driving mechanism 93. The scheduling component 92 is slidably mounted on the support 91 along a third direction M. The scheduling component 92 has a scheduling channel 921 extending along a first direction X, which is used to accommodate the sample rack 800 in the scheduling process. The third driving mechanism 93 is connected to the scheduling component 92 and is used to drive the scheduling component 92 to reciprocate between the distal end position 91a and the proximal end position 91b of the support 91 along the third direction M. When the third driving mechanism 93 drives the scheduling component 92 to the proximal end position 91b, the scheduling channel 921 is aligned with the first scheduling mechanism 80, so that the push-pull mechanism 20 can transfer the sample rack 800 between the scheduling channel 921 and the first scheduling mechanism 80.

[0066] In some embodiments, the bracket 91 further includes a bracket body 911 and a second slide rail 912. The second slide rail 912 is mounted on the bracket body 911 along a third direction M. The scheduling component 92 includes a scheduling element 922 and a second slider 923. The second slider 923 is slidably engaged with the second slide rail 912. The scheduling element 922 is mounted on the second slider 923 and has the scheduling channel 921. The scheduling element 922 is slidably connected to the bracket 91 through the engagement of the second slider 923 and the second slide rail 912. Of course, the sliding engagement between the second slider 923 and the frame 10 is not limited to the above-described manner. For example, in some other embodiments, the bracket 91 includes a bracket body 911 and at least two slide rods. The second slider 923 has a sliding hole, and the second slider 923 is slidably connected to the bracket 91 by means of slide rods passing through the sliding hole.

[0067] In some embodiments, the third drive mechanism 93 includes a third motor 931 and a second transmission assembly 932. The third motor 931 is mounted on the bracket 91, and the second transmission assembly 932 connects the third motor 931 and the second slider 923. The third motor 931 drives the second slider 923 to reciprocate along a third direction M via the second transmission assembly 932, thereby driving the scheduling member 922 to reciprocate along the third direction M. Optionally, the second transmission assembly 932 can be a belt drive assembly, a chain drive assembly, or a ball screw assembly, depending on the actual design requirements.

[0068] In some embodiments, the support 91 includes a first side 91a and a second side 91d opposite to the first side 91c. The first side 91c and the second side 91d are arranged along a first direction X. The second scheduling mechanism 90 further includes a first sidewall 94 and a second sidewall 95. The first sidewall 94 is disposed on the first side 91c of the support 91, and the second sidewall 95 is disposed on the second side 91d of the support 91. The second sidewall 95 has an opening 951 at a position opposite to the proximal end 91b of the support 91. The sample rack 800 can be transferred between the first scheduling mechanism 80 and the second scheduling mechanism 90 through the opening 951. The first sidewall 94 and the second sidewall 95 block both ends of the scheduling channel 921. In this embodiment, by setting the first sidewall 94 and the second sidewall 95 to block both ends of the scheduling channel 921, the first sidewall 94 and the second sidewall 95 can block the sample rack 800 within the scheduling channel 921, preventing the sample rack 800 from sliding out of the scheduling channel 921.

[0069] The operation of the sample rack transport device 100 is as follows:

[0070] When the sample rack 800 needs to move from the first scheduling mechanism 80 to the second scheduling mechanism 90, the first scheduling mechanism 80 drives the sample rack 800 to move along the second direction Y. When the sample rack 800 moves from the first scheduling mechanism 80 to the preset position, the second driving mechanism 40 drives the pulling member 22 to be embedded in the groove of the sample rack 800, and the first driving mechanism 30 drives the pulling member 22 to move along the second direction Y. The pulling member 22 pulls the sample rack 800 into the scheduling channel 921 of the scheduling component 92. After the sample rack 800 is completely inside the scheduling channel 921, the third driving mechanism 93 drives the scheduling component 92 to move along the third direction M to the designated position.

[0071] When the sample rack 800 needs to move from the second scheduling mechanism 90 to the first scheduling mechanism 80, the second scheduling mechanism 90 drives the scheduling component 92 to move along the third direction M. When the scheduling component 92 moves to the proximal position 91b, the scheduling channel 921 of the scheduling component 92 is aligned with the scheduling direction of the first scheduling mechanism 80. At this time, the pusher 21 of the push-pull mechanism 20 is located at the first side 802 of the sample rack 800, and the puller 22 of the push-pull mechanism 20 is embedded in the groove of the sample rack 800. Then the push-pull mechanism 20 pushes the sample rack 800 along the first direction X. When the sample rack 800 moves to the designated position, the pusher 41 abuts against the puller 22, causing the puller 22 to rotate and exit from the groove. The push-pull mechanism 20 continues to push the sample rack 800 along the first direction X until the sample rack 800 reaches the first scheduling mechanism 80.

[0072] like Figures 2 to 11 As shown, embodiments of the present invention also provide a sample rack transport device 100, used at least for transporting sample racks 800 along a first direction X and a second direction Y opposite to the first direction X. The sample rack 800 carries a sample container containing samples and is provided with a mating part 801. The sample rack transport device 100 includes a frame 10, a push-pull mechanism 20, a first drive mechanism 30, and a second drive mechanism 40. The push-pull mechanism 20 is slidably connected to the frame 10 and includes a pushing member 21 and a pulling member 22. The pulling member 22 is connected to the pushing member 21. The pushing member 21 is used to push the sample rack 800 to move along the first direction X, and the pulling member 22 is used to cooperate with the mating part 801 of the sample rack 800 to pull the sample rack 800 to move along the second direction Y. The first drive mechanism 30 is connected to the push-pull mechanism 20 and is used to drive the push-pull mechanism 20 to reciprocate along the first direction X and the second direction Y. The second drive mechanism 40 is connected to the frame 10 or the pull member 22. The second drive mechanism 40 is used to drive the pull member 22 to disengage from the mating part 801 of the sample frame 800 when the sample frame 800 moves to the preset position along the first direction X, and to drive the pull member 22 to engage with the mating part 801 of the sample frame 800 when the sample frame 800 moves to the preset position along the second direction Y.

[0073] In some embodiments, the pulling member 22 is rotatably connected to the pushing member 21. The pulling member 22 includes a claw portion 221 and a release portion 222. The claw portion 221 is used to engage with the mating portion 801 of the sample holder 800. The second drive mechanism 40 includes a pushing component 41, which is mounted on the frame 10. The pushing component 41 is used to abut the release portion 222 when the push-pull mechanism 20 drives the sample holder 800 to move along the first direction X to a preset position, so that the claw portion 221 rotates to disengage from the mating portion 801 of the sample holder 800.

[0074] In some embodiments, the pushing component 41 includes a connector 411 and a roller 412. The connector 411 includes a connecting end and an abutting end. The connecting end is mounted on the frame 10, and the roller 412 is rotatably mounted on the abutting end. The roller 412 is used to abut the release part 222.

[0075] In some embodiments, the sample rack transport device 100 further includes a reset assembly 50 connected between the pusher 21 and the puller 22. The reset assembly 50 is used to provide a restoring force so that when the pusher 41 is disengaged from the release part 222, the drive claw part 221 rotates and engages with the mating part 801 of the sample rack 800.

[0076] In some embodiments, the pusher 21 includes a first surface 211 and a second surface 212 opposite to the first surface 211 in the vertical direction. The puller 22 is rotatably disposed on the first surface 211 of the pusher 21. The first surface 211 of the pusher 21 is provided with a mounting portion 213. The reset assembly 50 includes a tension spring connected between the claw portion 221 and the mounting portion 213.

[0077] In some other embodiments, the pusher 21 includes a first surface 211 and a second surface 212 opposite to the first surface 211 in the vertical direction, the puller 22 is rotatably disposed on the first surface 211 of the pusher 21, and the reset assembly 50 includes a torsion spring connected between the pusher 21 and the puller 22.

[0078] In some embodiments, the first surface 211 of the pusher 21 is provided with a rotating shaft 214, the puller 22 is provided with an assembly hole 223, and the sample rack transport device 100 further includes a bearing assembly 60, which is embedded in the assembly hole 223 and sleeved on the rotating shaft 214 to realize the rotational connection between the puller 22 and the pusher 21.

[0079] In some embodiments, a limiting structure 70 is provided between the pushing member 21 and the pulling member 22, the limiting structure 70 being used to limit the rotation range of the pulling member 22 relative to the pushing member 21.

[0080] In some embodiments, the limiting structure 70 includes a limiting groove 71 and a limiting post 72. The limiting groove 71 is disposed on the pusher 21, and the limiting post 72 is connected to the puller 22. One end of the limiting post 72 is embedded in the limiting groove 71, and the limiting groove 71 limits the rotation range of the limiting post 72.

[0081] In some embodiments, the second drive mechanism 40 includes a second motor 42 connected to the pusher 21, and a puller 22 mounted on the output shaft of the second motor 42. The second motor 42 is used to drive the puller 22 to rotate so as to engage or disengage with the mating part 801 of the sample holder 800.

[0082] In some embodiments, the second drive mechanism 40 includes a telescopic drive assembly 43, which is connected to the pusher 21. A puller 22 is mounted on the telescopic drive assembly 43. The telescopic drive assembly 43 is used to drive the puller 22 to move along a third direction M to engage or disengage with the mating part 801 of the frame. The third direction M is perpendicular to the first direction X.

[0083] In some embodiments, the sample rack transport device 100 further includes a first scheduling mechanism 80 and a second scheduling mechanism 90. The first scheduling mechanism 80 is used to schedule the sample rack 800 along a first direction X and a second direction Y, and the second scheduling mechanism 90 is used to schedule the sample rack 800 along a third direction M, which is perpendicular to the first direction X. The push-pull mechanism 20 transports the sample rack 800 between the first scheduling mechanism 80 and the second scheduling mechanism 90.

[0084] In some embodiments, the second scheduling mechanism 90 includes a support 91, a scheduling component 92, and a third driving mechanism 93. The scheduling component 92 is slidably mounted on the support 91 along a third direction M. The scheduling component 92 has a scheduling channel 921 extending along a first direction X, which is used to accommodate the sample rack 800 in the scheduling process. The third driving mechanism 93 is connected to the scheduling component 92 and is used to drive the scheduling component 92 to reciprocate between the distal end position 91a and the proximal end position 91b of the support 91 along the third direction M. When the third driving mechanism 93 drives the scheduling component 92 to the proximal end position 91b, the scheduling channel 921 is aligned with the first scheduling mechanism 80, so that the push-pull mechanism 20 can transfer the sample rack 800 between the scheduling channel 921 and the first scheduling mechanism 80.

[0085] In some embodiments, the support 91 includes a first side 91c and a second side 91d opposite to the first side 91c. The first side 91c and the second side 91d are arranged along a first direction X. The second scheduling mechanism 90 further includes a first sidewall 94 and a second sidewall 95. The first sidewall 94 is disposed on the first side 91c of the support 91, and the second sidewall 95 is disposed on the second side 91d of the support 91. The second sidewall 95 has an opening 951 at a position opposite to the proximal end 91b of the support 91. The sample holder 800 can be transferred between the first scheduling mechanism 80 and the second scheduling mechanism 90 through the opening 951. The first sidewall 94 and the second sidewall 95 block both ends of the scheduling channel 921.

[0086] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A sample analyzer, characterized in that, include: A sample rack transport device, the sample rack transport device being used at least for transporting a sample rack along a first direction and a second direction opposite to the first direction, the sample rack carrying a sample container containing a sample; A sample dispensing device, the sample dispensing device being used to draw the sample from the sample container and dispense the drawn sample into a reaction vessel; A reagent dispensing device is used to draw reagents from a reagent container and dispense the drawn reagents into a reaction vessel; A sample detection device for detecting a sample made from the sample and the reagent in the reaction vessel; The sample rack is also provided with a mating part, wherein the sample rack transport device includes: frame; A push-pull mechanism is slidably connected to the frame. The push-pull mechanism includes a pusher and a puller. The pusher includes a first surface and a second surface opposite to the first surface in the vertical direction. The puller is disposed on the first surface or the second surface of the pusher and is rotatably connected to the pusher. The pusher is used to push the sample rack to move along the first direction. The puller includes a claw and a release part. The claw is used to cooperate with the mating part of the sample rack to pull the sample rack to move along the second direction. A first driving mechanism is connected to the push-pull mechanism, and the first driving mechanism is used to drive the push-pull mechanism to reciprocate along the first direction and the second direction; The second driving mechanism includes a pushing component, which includes a connector. The connector includes a connecting end and an abutting end. The connecting end is fixedly connected to the frame. The abutting end is used to abut against the release part when the push-pull mechanism drives the sample rack to move along the first direction to a preset position, so that the hook part rotates to disengage from the cooperating part of the sample rack. The reset assembly includes a tension spring or a torsion spring. When the reset assembly includes a tension spring, a mounting portion is provided on the first or second surface of the push member, and the tension spring is connected between the hook portion and the mounting portion. When the reset assembly includes a torsion spring, the torsion spring is connected between the push member and the pull member. The tension spring or torsion spring is used to provide a restoring force so that when the push-pull mechanism moves along the second direction until the abutment end of the connector disengages from the release portion, it drives the hook portion to rotate and engage with the mating portion of the sample holder.

2. The sample analyzer as described in claim 1, characterized in that, The actuation component also includes: A roller is rotatably mounted on the abutting end, and the roller is used to abut the releasing part.

3. The sample analyzer as described in claim 1, characterized in that, The first surface of the pusher is provided with a rotating shaft, the puller is provided with an assembly hole, and the sample rack conveying device further includes a bearing assembly. The bearing assembly is embedded in the assembly hole and sleeved on the rotating shaft to realize the rotational connection between the puller and the pusher.

4. The sample analyzer as described in claim 1, characterized in that, A limiting structure is provided between the pushing member and the pulling member, the limiting structure being used to limit the rotation range of the pulling member relative to the pushing member.

5. The sample analyzer as described in claim 4, characterized in that, The limiting structure includes: A limiting groove is provided in the pushing member; A limiting post is connected to the pulling member, and one end of the limiting post is embedded in the limiting groove, which restricts the rotation range of the limiting post.

6. The sample analyzer as described in claim 1, characterized in that, The sample rack transport device further includes a first scheduling mechanism and a second scheduling mechanism. The first scheduling mechanism is used to schedule the sample rack along the first direction and the second direction, and the second scheduling mechanism is used to schedule the sample rack along a third direction, which is perpendicular to the first direction. The push-pull mechanism transports the sample rack between the first scheduling mechanism and the second scheduling mechanism.

7. The sample analyzer as described in claim 6, characterized in that, The second dispatching agency includes: support; A scheduling component is slidably mounted on the bracket along the third direction. The scheduling component is provided with a scheduling channel extending along the first direction. The scheduling channel is used to accommodate the sample rack in the scheduling process. A third drive mechanism is connected to the scheduling component, and the third drive mechanism is used to drive the scheduling component to reciprocate between the distal and proximal positions of the support along the third direction. When the third driving mechanism drives the scheduling component to move to the proximal position, the scheduling channel is aligned with the first scheduling mechanism so that the push-pull mechanism can transfer the sample rack between the scheduling channel and the first scheduling mechanism.

8. The sample analyzer as described in claim 7, characterized in that, The support includes a first side and a second side opposite to the first side, the first side and the second side being arranged along the first direction, and the second scheduling mechanism further includes: The first sidewall is located on the first side of the bracket; The second sidewall is located on the second side of the support, and an opening is provided at a position opposite to the proximal end of the support. The sample rack can be moved between the first scheduling mechanism and the second scheduling mechanism through the opening. The first sidewall and the second sidewall block both ends of the scheduling channel.

9. A sample rack transport device, for transporting a sample rack along at least a first direction and a second direction opposite to the first direction, the sample rack carrying a sample container containing a sample and the sample rack having a mating part, characterized in that, The sample rack transport device includes: frame; A push-pull mechanism is slidably connected to the frame. The push-pull mechanism includes a pusher and a puller. The pusher includes a first surface and a second surface opposite to the first surface in the vertical direction. The puller is disposed on the first surface or the second surface of the pusher and is rotatably connected to the pusher. The pusher is used to push the sample rack to move along the first direction. The puller includes a claw and a release part. The claw is used to cooperate with the mating part of the sample rack to pull the sample rack to move along the second direction. A first driving mechanism is connected to the push-pull mechanism, and the first driving mechanism is used to drive the push-pull mechanism to reciprocate along the first direction and the second direction; The second driving mechanism includes a pushing component, which includes a connector. The connector includes a connecting end and an abutting end. The connecting end is fixedly connected to the frame. The abutting end is used to abut against the release part when the push-pull mechanism drives the sample rack to move along the first direction to a preset position, so that the hook part rotates to disengage from the cooperating part of the sample rack. The reset assembly includes a tension spring or a torsion spring. When the reset assembly includes a tension spring, a mounting portion is provided on the first or second surface of the push member, and the tension spring is connected between the hook portion and the mounting portion. When the reset assembly includes a torsion spring, the torsion spring is connected between the push member and the pull member. The tension spring or torsion spring is used to provide a restoring force so that when the push-pull mechanism moves along the second direction until the abutment end of the connector disengages from the release portion, it drives the hook portion to rotate and engage with the mating portion of the sample holder.

10. The sample rack transport device as described in claim 9, characterized in that, The actuation component also includes: A roller is rotatably mounted on the abutting end, and the roller is used to abut the releasing part.

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