Track change assembly, sample track, sample module and sample analyzer

Abstract

The present invention provides a track change assembly, a sample track, a sample module and a sample analyzer, wherein the track change assembly includes: a base and a moving base; a driving structure, the driving structure is arranged on the base and connected to the moving base to drive the moving base to move along a first direction; a conveying structure, the conveying structure is arranged on the moving base, the conveying structure cooperates with the sample rack and conveys the sample rack to move along a second direction, and the first direction and the second direction are perpendicular. The technical solution of the present invention effectively solves the problem of low efficiency of the sample track in the prior art when conveying the sample rack and changing the track.

Description

Technical Field

[0001] The present invention relates to the technical field of sample analyzers, and in particular to a track change component, a sample track, a sample module and a sample analyzer. Background Art

[0002] In sample analysis, sample loading and storage operations are required. Generally, samples are placed in sample tubes, and multiple sample tubes are placed in a sample rack and stored in a sample storage device (such as a sample bin). In order to complete the sample loading, the sample rack needs to be transported to the sample filling position, and the sample filling device absorbs the sample into the reaction container at the sample filling position to complete the sample loading.

[0003] At present, the track change mechanism of the sample analyzer on the market that uses a track to transport the sample rack is mostly connected to the conveying track as a whole. After the sample rack is transported to the specified position on the track change mechanism through the conveying track, the track change mechanism changes the track by moving the sample rack. Such an instrument's sample loading action and the track change mechanism's action of changing the track of the sample rack must be performed in sequence, that is, the instrument's sample loading action and the track change mechanism's track change action are implemented in the following manner: the track change mechanism stops working when the instrument is loading samples, the track change mechanism performs the track change action after the instrument stops loading samples, and the instrument starts to perform the sample loading action after the track change mechanism stops changing the track, which greatly reduces the working efficiency of the instrument and the track change mechanism. Summary of the invention

[0004] The main purpose of the present invention is to provide a track change assembly, a sample track, a sample module and a sample analyzer to solve the problem of low efficiency of the sample track in the prior art when transporting sample racks and changing tracks.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a track change assembly is provided, including: a base and a moving base; a driving structure, the driving structure is arranged on the base and connected to the moving base to drive the moving base to move along a first direction; and a conveying structure, the conveying structure is arranged on the moving base, the conveying structure cooperates with the sample rack and conveys the sample rack to move along a second direction, and the first direction and the second direction are perpendicular to each other.

[0006] Furthermore, the base includes a bottom plate and a first vertical plate arranged on the bottom plate, and the driving structure is arranged on the first vertical plate.

[0007] Furthermore, the driving structure includes a driving motor, a driving wheel, a driven wheel and a driving belt. The rotating shaft of the driving motor is connected to the driving wheel, the driving belt is arranged on the driving wheel and the driven wheel, the moving seat is connected to the driving belt, and the driving motor is fixed on the first vertical plate.

[0008] Furthermore, a matching slide rail structure is provided between the first vertical plate and the movable seat.

[0009] Furthermore, a slide rail is arranged on the upper portion of the first vertical plate, and a slide groove matching with the slide rail is arranged on the lower portion of the movable seat.

[0010] Furthermore, the movable seat includes two side plates, and the two side plates are arranged at an interval to form a movable channel of the sample rack.

[0011] Furthermore, the conveying structure includes a conveying motor, a driving conveying wheel, a first driven conveying wheel and a conveyor belt. The rotating shaft of the conveying motor is connected to the driving conveying wheel. The conveyor belt is arranged on the driving conveying wheel and the first driven conveying wheel. The conveying motor is arranged on a movable seat. The conveying structure also includes a second driven conveying wheel. The conveyor belt is a closed ring. The conveyor belt is in contact with the first driven conveying wheel, the second driven conveying wheel and the driving conveying wheel in the circumferential outer side.

[0012] Furthermore, the movable seat also includes a sliding block, and the sliding block is fixed at the bottom of the two side plates.

[0013] Furthermore, a slide groove is provided at the bottom of the sliding block, and a slide rail is provided at the top of the first vertical plate.

[0014] Furthermore, the movable seat also includes a limit motor and a baffle, the limit motor is arranged on the side plate, the baffle is connected to the rotating shaft of the limit motor, and the baffle has a blocking position for blocking the moving channel of the sample rack and an avoidance position for avoiding the moving channel of the sample rack.

[0015] Furthermore, the track changing assembly also includes a front shielding structure, which cooperates with the conveying structure to prevent the sample rack from leaving the track.

[0016] Furthermore, the movable seat includes a first shift block, the base includes a second vertical plate, the second vertical plate is arranged on the bottom plate, the front shielding structure is arranged on the second vertical plate, and the first shift block cooperates with the front shielding structure to make the front shielding structure avoid the sample rack channel.

[0017] Furthermore, the front shielding structure includes a first front shielding structure, which is rotatably disposed on the second vertical plate and located at a first position. When the movable seat is opposite to the first position, the first shifting block shifts the first front shielding structure away from the first position.

[0018] Furthermore, the front shielding structure includes a second front shielding structure, which is rotatably disposed on the second vertical plate and located at a second position. When the movable seat is opposite to the second position, the first shifting block shifts the second front shielding structure away from the second position.

[0019] Furthermore, the front shielding structure includes a third front shielding structure, which is rotatably arranged on the second vertical plate and located at a third position. When the movable seat is opposite to the third position, the first shifting block shifts the third front shielding structure to avoid the third position.

[0020] Furthermore, the front shielding structure includes a swing arm, a roller and a baffle, the first end of the swing arm is rotatably connected to the second vertical plate, the second end of the swing arm is connected to the baffle, the roller is arranged at the second end of the swing arm, and the first shift block cooperates with the roller to realize the rotation of the front shielding structure.

[0021] Furthermore, the track changing assembly also includes a rear shielding structure, the front shielding structure and the rear shielding structure are respectively located on both sides of the first vertical plate, and the rear shielding structure is rotatably located in a third position.

[0022] Furthermore, the movable seat also includes a second shifting block, the base includes a third vertical plate, the third vertical plate is arranged on the bottom plate, the rear shielding structure is arranged on the third vertical plate, and the second shifting block cooperates with the rear shielding structure.

[0023] According to another aspect of the present invention, a sample track is provided. The sample track includes a track body and a track changing assembly. The track changing assembly is the track changing assembly described above.

[0024] According to another aspect of the present invention, a sample module is provided, comprising a sample track, where the sample track is the sample track described above.

[0025] According to another aspect of the present invention, a sample analyzer is provided, comprising a sample module, wherein the sample module is the sample module described above.

[0026] By applying the technical solution of the present invention, the track change assembly has an independent driving structure and conveying structure. When the driving structure drives the moving seat to dock with the track of the upstream sample track body, the conveying structure transfers the sample rack to the track change assembly. In this way, when the upstream sample track body is conveying other sample racks, the track change assembly can continue to independently convey the sample rack located thereon. The above structure makes it possible for the conveying of sample racks and track change to be performed simultaneously without interfering with each other. The technical solution of the present invention effectively solves the problem of low efficiency of the sample track in the prior art when conveying sample racks and changing tracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a track changing assembly according to the present invention is shown;

[0029] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of the track change assembly from another angle;

[0030] Figure 3 Shows Figure 1 A schematic top view of a track change assembly;

[0031] Figure 4 Shows Figure 1 A schematic diagram of the three-dimensional structure of a moving seat of a track change assembly;

[0032] Figure 5 Shows Figure 2 A structural schematic diagram of the mobile seat from another angle;

[0033] Figure 6 Shows Figure 1 A schematic diagram of the three-dimensional structure of a base of a track change assembly;

[0034] Figure 7 Shows Figure 6 A schematic structural diagram of the base from another angle;

[0035] Figure 8 Shows Figure 1 A schematic diagram of the structure of the limit motor and the baffle of the track change assembly;

[0036] Fig. 9 Shows Figure 1 A schematic structural diagram of a front shielding structure of a track change assembly;

[0037] Fig.10 Shows Fig. 9 A schematic diagram of the structure of the front occlusion structure from another angle; and

[0038] Fig.11 Shows Figure 1 Schematic diagram of the structure of the torsion spring of the track change assembly.

[0039] The above drawings include the following reference numerals:

[0040] 10. base; 11. bottom plate; 12. first vertical plate; 121. slide rail; 13. second vertical plate; 14. third vertical plate; 20. moving seat; 21. side plate; 22. slider; 221. slide groove; 23. first shift block; 24. second shift block; 25. limit motor; 26. baffle; 30. driving structure; 31. driving motor; 32. driving wheel; 33. driven wheel; 34. driving belt; 40. conveying structure; 4 1. Conveying motor; 42. Active conveying wheel; 43. First driven conveying wheel; 44. Conveying belt; 45. Second driven conveying wheel; 50. Front shielding structure; 51. First front shielding structure; 52. Second front shielding structure; 53. Third front shielding structure; 54. Swing arm; 55. Roller; 56. Baffle; 57. Torsion spring; 60. Rear shielding structure; 70. Detection sensor; 80. Zero position sensor; 90. Induction sheet. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] like Figures 1 to 11 As shown, a track change assembly of this embodiment includes: a base 10, a moving base 20, a driving structure 30 and a conveying structure 40. The driving structure 30 is arranged on the base 10 and connected to the moving base 20 to drive the moving base 20 to move along a first direction. The conveying structure 40 is arranged on the moving base 20, and the conveying structure 40 cooperates with the sample rack and conveys the sample rack to move along a second direction, and the first direction and the second direction are perpendicular.

[0043] By applying the technical solution of this embodiment, the track change assembly has an independent driving structure 30 and a conveying structure 40. When the driving structure 30 drives the moving seat 20 to dock with the track of the upstream sample track body, the conveying structure 40 transfers the sample rack to the track change assembly. In this way, when the upstream sample track body is conveying other sample racks, the track change assembly can continue to independently convey the sample rack located thereon. The above structure makes it possible for the conveying of sample racks and track change to be performed simultaneously without interfering with each other. The technical solution of this embodiment effectively solves the problem of low efficiency of the sample track in the prior art when conveying sample racks and changing tracks.

[0044] It should be noted that the movable seat 20 is arranged on the base 10, and the base 10 and the movable seat 20 have a slide rail structure that cooperates with each other. In this way, the movable seat 20 is relatively stable when driven by the driving structure 30. The upstream track body has three tracks: the first track, the second track and the third track. The first track corresponds to the first position. The first track is used for conveying general samples, the second track is used for conveying urgent samples, and the third track is used to return the used sample rack. The movable seat 20 of the track change assembly only docks with one of the three tracks each time it is aligned. The three tracks have mutually opposed conveyor belts. The samples transported from the first track and the second track are directly transported to the conveying structure 40 through the conveyor belt, and the sample rack on the conveying structure 40 is directly transported back to the third track. Of course, if there are multiple sample analyzers, the conveying structure 40 can also be used to transport sample racks between different sample analyzers on the track aligned with the third track.

[0045] like Figures 1 to 6 As shown, in the technical solution of this embodiment, the base 10 includes a bottom plate 11 and a first vertical plate 12 arranged on the bottom plate 11, and the driving structure 30 is arranged on the first vertical plate 12. The bottom plate 11 is placed horizontally, and the first vertical plate 12 is perpendicular to the plane of the bottom plate 11. Of course, in order to fix the driving structure 30, the first vertical plate 12 can also be in other forms, for example, the first vertical plate 12 can also be a fixed block.

[0046] like Figure 1 and Figure 4 As shown, in the technical solution of this embodiment, the driving structure 30 includes a driving motor 31, a driving wheel 32, a driven wheel 33 and a driving belt 34, the rotating shaft of the driving motor 31 is connected to the driving wheel 32, the driving belt 34 is arranged on the driving wheel 32 and the driven wheel 33, and the moving seat 20 is connected to the driving belt 34. The driving belt 34 is connected to the moving seat 20 through a clamping piece, a bolt and a nut. In the technical solution of this embodiment, a vertical plate structure is preferably used, and the first vertical plate 12 is adapted to the bottom plate 11 in the length direction, so that the driving motor 31, the driving wheel 32 and the driven wheel 33 are all arranged on the first vertical plate 12. The above structure is relatively compact and has a low processing cost. The driving belt 34 is a closed ring, and the driving wheel 32 and the driven wheel 33 are respectively located at the two ends of the driving belt 34 and cooperate with the inner wall of the driving belt 34. Specifically, the driving structure 30 also includes a tensioning wheel, which cooperates with the driving belt 34 to adjust the tightness of the driving belt 34. The tensioning wheel is disposed on the first vertical plate 12 , and can cooperate with the outer wall of the driving belt 34 or the inner wall of the driving belt 34 , as long as it can play a role in adjusting the tightness of the driving belt 34 .

[0047] like Figures 1 to 6 As shown, in the technical solution of this embodiment, the first vertical plate 12 is perpendicular to the moving direction of the sample rack. The above structure makes it easy to set other structures on the first vertical plate 12, for example, to make the moving seat 20 move in the direction toward or away from the first vertical plate 12. Specifically, the first vertical plate 12 has a hollow structure, which can reduce weight and reduce the amount of material. The first vertical plate 12 is perpendicular to the moving direction of the sample rack along the track.

[0048] like Figure 1 and Figure 4 As shown, in the technical solution of this embodiment, a slide rail structure that cooperates with each other is provided between the first vertical plate 12 and the moving seat 20. The above structure is convenient to set up, easy to install, and simple to operate. Specifically, a slide rail is provided on the upper part of the first vertical plate 12, and a slide groove that cooperates with the slide rail is provided on the lower part of the moving seat 20. The moving seat 20 moves under the drive of the driving structure 30, and the slide rail structure makes the moving seat 20 run more smoothly when moving.

[0049] like Figure 1 and Figure 2As shown, in the technical solution of this embodiment, the moving seat 20 includes two side plates 21, and the two side plates 21 are arranged at intervals to form a moving channel for the sample rack. The above structure is relatively compact. Specifically, the two side plates 21 are arranged in parallel, and the two side plates 21 are perpendicular to the first vertical plate 12. In this way, when the moving seat 20 moves along the slide rail, the moving channel of the sample rack corresponds to the conveyor belt of the upstream sample track body. The sample rack moves in the moving channel, and the sample rack can be located in the track change assembly and detached from the track change assembly.

[0050] like Figures 1 to 5 As shown, in the technical solution of this embodiment, the conveying structure 40 includes a conveying motor 41, a driving conveying wheel 42, a first driven conveying wheel 43 and a conveying belt 44. The rotating shaft of the conveying motor 41 is connected to the driving conveying wheel 42, and the conveying belt 44 is arranged on the driving conveying wheel 42 and the first driven conveying wheel 43. The above structure is compact and has a low processing cost. Specifically, the conveying motor 41 is arranged on the moving seat 20.

[0051] like Figures 1 to 5 As shown, in the technical solution of this embodiment, the movable seat 20 further includes a slider 22, which is fixed at the bottom of the two side plates 21. The arrangement of the slider 22 makes it easier for the movable seat 20 to cooperate with the first vertical plate 12. Specifically, a slide groove 221 is arranged at the bottom of the slider 22, and a slide rail 121 is arranged at the upper part of the first vertical plate 12. The slide groove may be a dovetail groove, and the slide rail is adapted to the dovetail groove. In this way, the slide groove and the slide rail can also achieve multi-angle limiting.

[0052] like Figure 1 and Figure 5 As shown, in the technical solution of this embodiment, the conveying structure 40 also includes a second driven conveying wheel 45, and the conveying belt 44 is a closed ring, and the conveying belt 44 is in contact with the first driven conveying wheel 43, the second driven conveying wheel 45 and the active conveying wheel 42. The active conveying wheel 42 is located at the lower part of the first driven conveying wheel 43, and the second tensioning wheel, the first driven conveying wheel 43 and the second driven conveying wheel 45 are on the same horizontal plane, so that not only the sample rack can be transported, but also the tightness of the conveying belt 44 can be adjusted.

[0053] like Figure 4 As shown, in the technical solution of this embodiment, the moving seat 20 also includes a limit motor 25 and a baffle 26. The limit motor 25 is arranged on the side plate 21. The baffle 26 is connected to the rotating shaft of the limit motor 25. The baffle 26 has a blocking position for blocking the moving channel of the sample rack and a avoiding position for avoiding the moving channel of the sample rack. The above structure prevents the sample rack from escaping from the rear of the track change assembly. The direction of the sample rack is the front, and the opposite direction is the rear, which further ensures the safety of the sample rack.

[0054] like Figures 1 to 10 As shown, in the technical solution of this embodiment, the track change assembly further includes a front shielding structure 50, which cooperates with the conveying structure 40 to prevent the sample rack from detaching from the track change assembly. The setting of the front shielding structure 50 can prevent the sample rack from detaching from the track change assembly on the one hand, and can also prevent the sample rack from detaching from the upstream sample track body on the other hand.

[0055] like Figures 1 to 4 As shown, in the technical solution of this embodiment, the movable seat 20 includes a first shifting block 23, the base 10 includes a second vertical plate 13, the second vertical plate 13 is arranged on the bottom plate 11, the front shielding structure 50 is arranged on the second vertical plate 13, and the first shifting block 23 cooperates with the front shielding structure 50 to make the front shielding structure 50 avoid the sample rack channel. The setting of the first shifting block 23 greatly reduces the cost, and there is no need to set up a special control structure and a motor connected to the control structure. Moreover, the setting of the first shifting block 23 ensures the synchronization between the movable seat 20 and the front shielding structure 50, avoiding the occurrence of mistakes. That is, only when the movable seat 20 moves to the appropriate position can the first shifting block 23 shift the front shielding structure 50. The first shift block 23 is an inverted triangular shift block. Taking the first front shielding structure 51 as an example, when the moving seat 20 moves from the track position corresponding to the first position to the track position corresponding to the second position, the side of the inverted triangular shift block contacts the roller on the first support rod of the first front shielding structure 51, pushing the first shielding plate of the first front shielding structure 51 to gradually deviate from the second position. When the moving seat 20 is located at the track position corresponding to the second position, the inverted triangular shift block pushes the first shielding plate of the first front shielding structure 51 away from the second position, so that the second track corresponds to the conveying structure 40, and the sample rack can be conveyed from the second track to the conveying structure 40. If the moving seat 20 continues to move toward the third position, the bottom of the inverted triangle passes through the roller on the first support rod of the first front shielding structure 51, and the first front shielding structure 51 returns to the second position. It should be noted that the first front shielding structure 51 includes a first support rod, a roller and a first shielding plate. The first end of the first support rod is rotatably connected to the second vertical plate 13. The first shielding plate is connected to the second end of the first support rod on a side away from the movable seat 20. The inverted triangle only applies force to the roller at the second end of the first support rod, and does not interfere with the first shielding plate. Similarly, the second front shielding structure 52 includes a second support rod, a second roller and a second shielding plate. The third front shielding structure 53 includes a third support rod, a third roller and a third shielding plate. The rear shielding structure 60 includes a fourth support rod, a fourth roller and a fourth shielding plate. The principles of the second front shielding structure 52, the third front shielding structure 53 and the rear shielding structure 60 are similar to those of the first front shielding structure 51 and will not be repeated here.

[0056] like Figure 1 , Figure 6 and Fig.10 As shown, in the technical solution of this embodiment, the front shielding structure 50 includes a first front shielding structure 51, which is rotatably arranged on the second vertical plate 13 and is located in the first position. When the moving seat 20 is opposite to the first position, the first shifting block 23 shifts the first front shielding structure 51 to avoid the first position. The above-mentioned first position mainly refers to the position where the first shielding plate is in a position to block the second track. When the moving seat 20 is opposite to the first position, the first shielding plate and the conveying structure 40 are in the same straight line. The front shielding structure 50 includes a second front shielding structure 52, which is rotatably arranged on the second vertical plate 13 and is located in the second position. When the moving seat 20 is opposite to the second position, the first shifting block 23 shifts the second front shielding structure 52 to avoid the second position. The above-mentioned second position mainly refers to the position where the second shielding plate is in a position to block the first track. When the moving seat 20 is opposite to the second position, it means that the second track and the adjacent part of the conveying structure 40, the second shielding plate and the conveying structure 40 are in the same straight line. The front shielding structure 50 includes a third front shielding structure 53, which is rotatably disposed on the second vertical plate 13 and is located at a third position. When the movable seat 20 is opposite to the third position, the first shifting block 23 shifts the third front shielding structure 53 to avoid the third position. The above-mentioned third position is mainly to the position where the third shielding plate is in a position to shield the third track. When the movable seat 20 is opposite to the third position, it means that the third track is adjacent to the conveying structure 40, and the third shielding plate and the conveying structure 40 are in the same straight line. The upstream sample track body has three tracks in total, a first track, a second track, and a third track. The above-mentioned three front shielding structures 50 correspond to the three sample track bodies one by one, thereby ensuring the safe use of the sample rack.

[0057] like Fig. 9 and Fig.10 As shown, in the technical solution of this embodiment, the front shielding structure 50 includes a swing arm 54, a roller 55 and a baffle 56. The first end of the swing arm 54 is rotatably connected to the second vertical plate 13, the second end of the swing arm 54 is fixedly connected to the baffle 56, the roller 55 is arranged at the second end of the swing arm 54, and the first shift block 23 cooperates with the roller 55 to realize the rotation of the front shielding structure 50. The first shift block 23 cooperates with the roller 55, which can prevent jamming and reduce friction resistance.

[0058] like Figures 9 to 11As shown, in the technical solution of this embodiment, the front shielding structure 50 also includes a torsion spring 57, which is arranged at the first end of the swing arm 54 and cooperates with the second vertical plate 13 to apply elastic force to the swing arm 54. The provision of the torsion spring 57 can facilitate the front shielding structure 50 to be in the shielding position. Specifically, the front shielding structure 50 also includes a limiting column, which is arranged on the second vertical plate 13, so that the front shielding structure 50 is in the shielding position under the joint action of the torsion spring 57 and the limiting column, and the front shielding structure 50 is in the avoidance position when the first shift block 23 applies a force to the front shielding structure 50. Further specifically, the first vertical plate 12 and the second vertical plate 13 are parallel.

[0059] like Figure 1 As shown, in the technical solution of this embodiment, the track changing assembly also includes a rear shielding structure 60, and the front shielding structure 50 and the rear shielding structure 60 are respectively located on both sides of the first vertical plate 12, and the rear shielding structure 60 is rotatably located in the third position. Since the third position is the track for the sample rack to retract, both ends of the track changing assembly can be docked with the track body. When the sample of the track changing assembly at the other end needs to be retracted, the rear shielding structure 60 is provided in this embodiment to prevent the retracted sample rack from falling off when the moving seat 20 is not in the third position. Only when the moving seat 20 is in the third position, the triangular shifting block at the other end of the track changing assembly removes the rear shielding structure 60, the third channel is opened, and the sample rack can be transferred from the track body at the other end to the track changing assembly.

[0060] like Figures 1 to 5 As shown, in the technical solution of this embodiment, the movable seat 20 further includes a second shifting block 24, the base 10 includes a third vertical plate 14, the third vertical plate 14 is arranged on the bottom plate 11, the rear shielding structure 60 is arranged on the third vertical plate 14, and the second shifting block 24 cooperates with the rear shielding structure 60. The above structure ensures the arrangement of the rear shielding structure 60. For the same reason, the rear shielding structure 60 is similar to the front shielding structure, and also includes a swing arm, a roller, a baffle, a torsion spring and a limit column.

[0061] like Figure 5 As shown, in the technical solution of this embodiment, the track change assembly also includes a detection sensor 70, and the detection sensor 70 is arranged on the moving seat 20 to detect whether the sample rack is on the moving seat 20. The setting of the detection sensor 70 greatly facilitates the detection of the sample rack by the operator, saving time and effort. Specifically, the detection sensor 70 can also detect the specific position of the sample rack on the moving seat 20. There are two detection sensors 70, one is arranged on the front side of the moving channel of the sample rack, and the other is arranged on the rear side of the moving channel of the sample rack. When the detection sensor 70 on the front side detects the sample rack, it means that the sample rack has entered the moving seat 20. When the detection sensor 70 on the rear side detects the sample rack, it means that the sample rack has completely entered the interior of the moving seat 20.

[0062] like Figure 1 and Figure 7 As shown, in the technical solution of this embodiment, the track change assembly also includes a zero position sensor 80 and a sensing sheet 90, wherein the sensing sheet 90 is arranged on the moving seat 20, and the zero position sensor 80 is arranged on the base 10. During operation, when the zero position sensor 80 corresponds to the sensing sheet 90, the moving seat 20 is in the initial position, and when the moving seat 20 finishes working, it returns to the initial position, so that the zero position sensor 80 corresponds to the sensing sheet 90, indicating that the moving seat 20 has returned to the initial position. This greatly ensures the safety of the track change assembly when transferring the sample rack, and each time the sensing sheet 90 passes through the zero position sensor 80, the zero position (i.e., the moving starting position) of the moving seat 20 is calibrated once, thus ensuring that the moving seat can move accurately each time.

[0063] The track changing assembly has an independent driving structure 30 and a conveying structure 40. When the driving structure 30 drives the moving seat 20 to dock with the track of the upstream sample track body, the conveying structure 40 transfers the sample rack to the track changing assembly. The upstream track body has three tracks, corresponding to the first position, the second position and the third position respectively, and the track changing assembly can dock with the track body at the above three positions. In this way, when the upstream sample track body is transporting other sample racks, the track changing assembly can continue to independently carry out the transport work of the sample rack located thereon, and the above structure makes it possible to transport the sample rack and change the track without interfering with each other and can be carried out simultaneously. This greatly improves the efficiency of the sample track when transporting sample racks and changing the track.

[0064] The present application also provides a sample track, which includes a track body and a track changing assembly. The track changing assembly is the track changing assembly mentioned above.

[0065] The present application also provides a sample module, including a sample track. The sample track is the sample track mentioned above.

[0066] The present application also provides a sample analyzer, including a sample module. The sample module is the sample module mentioned above.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A track change component, It is characterized in that include: A base (10) and a movable base (20); a driving structure (30), the driving structure (30) being arranged on the base (10) and connected to the moving base (20) to drive the moving base (20) to move along a first direction; a conveying structure (40), the conveying structure (40) being arranged on the movable seat (20), the conveying structure (40) cooperating with the sample rack and conveying the sample rack to move along a second direction; The first direction is perpendicular to the second direction; The base (10) comprises a bottom plate (11) and a first vertical plate (12) arranged on the bottom plate (11), and the driving structure (30) is arranged on the first vertical plate (12); The driving structure (30) comprises a driving motor (31), a driving wheel (32), a driven wheel (33) and a driving belt (34); the rotating shaft of the driving motor (31) is connected to the driving wheel (32); the driving belt (34) is arranged on the driving wheel (32) and the driven wheel (33); the moving seat (20) is connected to the driving belt (34); and the driving motor (31) is fixed on the first vertical plate (12); The movable seat (20) comprises two side plates (21), and the two side plates (21) are arranged at an interval to form a movable channel of the sample rack; The conveying structure (40) comprises a conveying motor (41), a driving conveying wheel (42), a first driven conveying wheel (43) and a conveying belt (44); the rotating shaft of the conveying motor (41) is connected to the driving conveying wheel (42); the conveying belt (44) is arranged on the driving conveying wheel (42) and the first driven conveying wheel (43); and the conveying motor (41) is arranged on the moving seat (20).

2. The track change assembly according to claim 1, It is characterized in that A mutually matching slide rail structure is provided between the first vertical plate (12) and the movable seat (20).

3. The track change assembly according to claim 2, It is characterized in that A slide rail (121) is provided on the upper portion of the first vertical plate (12), and a slide groove (221) matching the slide rail (121) is provided on the bottom portion of the movable seat (20).

4. The track change assembly according to claim 1, It is characterized in that The conveying structure (40) further comprises a second driven conveying wheel (45); the conveying belt (44) is in a closed ring shape; the conveying belt (44) surrounds the first driven conveying wheel (43), the second driven conveying wheel (45) and the active conveying wheel (42) in a circumferential direction in contact with each other.

5. The track change assembly according to claim 1, It is characterized in that The movable seat (20) further comprises a sliding block (22), wherein the sliding block (22) is fixed to the bottom of the two side plates (21).

6. The track change assembly according to claim 5, It is characterized in that A sliding groove (221) is provided at the bottom of the sliding block (22), and a sliding rail (121) is provided at the top of the first vertical plate (12).

7. The track change assembly according to claim 1, It is characterized in that The movable seat (20) further comprises a limit motor (25) and a baffle (26); the limit motor (25) is arranged on the side plate (21); the baffle (26) is connected to the rotating shaft of the limit motor (25); the baffle (26) has a blocking position for blocking the moving channel of the sample rack and an avoidance position for avoiding the moving channel of the sample rack.

8. The track change assembly according to claim 1, It is characterized in that The track change assembly further comprises a front shielding structure (50), wherein the front shielding structure (50) cooperates with the conveying structure (40) to prevent the sample rack from being separated from the track change assembly.

9. The track change assembly according to claim 8, It is characterized in that The movable seat (20) comprises a first shifting block (23), the base (10) comprises a second vertical plate (13), the second vertical plate (13) is arranged on the bottom plate (11), the front shielding structure (50) is arranged on the second vertical plate (13), and the first shifting block (23) cooperates with the front shielding structure (50) to enable the front shielding structure (50) to avoid the sample rack channel.

10. The track change assembly according to claim 9, It is characterized in that The front shielding structure (50) comprises a first front shielding structure (51), the first front shielding structure (51) being rotatably arranged on the second vertical plate (13) and being located at a first position, and when the movable seat (20) is opposite to the first position, the first shifting block (23) shifts the first front shielding structure (51) away from the first position.

11. The track change assembly according to claim 9, It is characterized in that The front shielding structure (50) comprises a second front shielding structure (52), the second front shielding structure (52) being rotatably arranged on the second vertical plate (13) and being located at a second position, and when the movable seat (20) is opposite to the second position, the first shifting block (23) shifts the second front shielding structure (52) away from the second position.

12. The track change assembly according to claim 9, It is characterized in that The front shielding structure (50) comprises a third front shielding structure (53), the third front shielding structure (53) being rotatably arranged on the second vertical plate (13) and being located at a third position, and when the movable seat (20) is opposite to the third position, the first shifting block (23) shifts the third front shielding structure (53) to avoid the third position.

13. The track change assembly according to claim 9, It is characterized in that The front shielding structure (50) comprises a swing arm (54), a roller (55) and a baffle (56); the first end of the swing arm (54) is rotatably connected to the second vertical plate (13); the second end of the swing arm (54) is connected to the baffle (56); the roller (55) is arranged at the second end of the swing arm (54); and the first shift block (23) cooperates with the roller (55) to realize the rotation of the front shielding structure (50).

14. The track change assembly according to claim 12, It is characterized in that The track change assembly further comprises a rear shielding structure (60), the front shielding structure (50) and the rear shielding structure (60) being respectively located on two sides of the first vertical plate (12), and the rear shielding structure (60) being rotatably located in the third position.

15. The track change assembly according to claim 14, It is characterized in that The movable seat (20) further comprises a second shifting block (24); the base (10) comprises a third vertical plate (14); the third vertical plate (14) is arranged on the bottom plate (11); the rear shielding structure (60) is arranged on the third vertical plate (14); and the second shifting block (24) cooperates with the rear shielding structure (60).

16. A sample track, comprising a track body and a track change assembly, It is characterized in that The track change assembly is the track change assembly described in any one of claims 1 to 15.

17. A sample analyzer comprising a sample track, It is characterized in that The sample track is the sample track according to claim 16.

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