Limiting structure, conveying module and sample analyzer

Abstract

The utility model discloses a limiting structure, a conveying module and a sample analyzer. According to the limiting structure, the consumable box which reaches the loading position is limited by arranging the limiting piece, so that the consumable box is not supported and limited by the driving device any more, and then the consumable box is loaded into the loading position after the driving device drives the consumable box to the loading position. The limiting structure can prevent most of the acting force applied to the target pipetting head when the pipetting device loads the pipetting head from being transmitted to the driving device through the consumable box, so that the limiting structure can reduce or prevent the acting force from being transmitted to the driving device when the pipetting device loads the pipetting head; therefore, the driving device can repeatedly and stably drive the consumable box to the loading position.

Description

Technical Field

[0001] The present invention relates to the technical field of analytical instruments, and particularly to a limiting structure, a conveying module and a sample analyzer. Background Art

[0002] Biochemical analyzers, immunoassays, cell analyzers, etc. all belong to sample analyzers, which are instruments used for quantitative and qualitative detection and analysis of samples.

[0003] During the sample detection process of a sample analyzer, a pipetting device often needs to transfer different solutions (such as reagents of different types or specifications, different types of samples, different mixtures, etc.). To avoid cross-contamination when transferring different solutions and affecting the detection results, disposable pipette tips are provided on the pipetting device. Taking the TIP head as an example, usually, a consumable cartridge carrying multiple TIP heads is first conveyed to the loading position, and then the pipetting device loads the TIP head.

[0004] In the prior art, the consumable cartridge located at the loading position is only limited and supported by a driving device for driving the movement of the consumable cartridge. Therefore, most of the force applied to the loaded TIP head by the pipetting device during the process of loading a new TIP head will be transmitted to the driving device through the consumable cartridge, resulting in a change in the positioning accuracy of the driving device, making it difficult to keep the consumable cartridge at the loading position, thereby affecting the loading efficiency of the TIP head and even causing damage to the driving device. Summary of the Utility Model

[0005] The main purpose of the present application is to provide a limiting structure, a conveying module and a sample analyzer that can effectively limit the consumable cartridge, thereby preventing the pipetting device from applying a large force to the driving device when loading the pipette tip, and ensuring that the driving device can drive the consumable cartridge to the loading position.

[0006] On the one hand, the present application provides a limiting structure, including a limiting member, and the limiting member has a limiting position and a release position;

[0007] When the limiting member is in the limiting position, it can be used to limit and support the consumable cartridge located at the loading position. When the limiting member is in the release position, the consumable cartridge can move to the loading position or leave the loading position under the drive of the driving device.

[0008] Further, the limiting structure further includes a limiting frame, and the limiting frame is connected to the bracket and is used to limit the consumable cartridge located at the loading position in the horizontal direction;

[0009] The limiting member includes at least one first limiting arm, and the first limiting arm includes a first sub-connecting arm and a first sub-limiting arm. The first sub-connecting arm is connected between the first sub-limiting arm and the limiting frame;

[0010] When the limiting member is in the limiting position, the first sub-limiting arm limits and supports the consumable cartridge. When the limiting member is in the release position, the consumable cartridge can move to the loading position or leave from the loading position.

[0011] Further, the limiting member further includes at least one second limiting arm. The second limiting arm is connected to the limiting frame and is located on the adjacent side and / or the opposite side of the first limiting arm. The second limiting arm includes a second sub-connecting arm and a second sub-limiting arm. The second sub-connecting arm is connected between the second sub-limiting arm and the limiting frame;

[0012] When the limiting member is in the limiting position, the first sub-limiting arm and the second sub-limiting arm respectively limit and support the consumable cartridge. When the limiting member is in the release position, the consumable cartridge can move to the loading position or leave from the loading position.

[0013] Further, the first side of the limiting frame is connected to the bracket;

[0014] At least one of the first limiting arms is provided on the second side of the limiting frame. The first sub-limiting arm corresponding to at least one of the first limiting arms is rotatably connected to the corresponding first sub-connecting arm along a first rotation axis;

[0015] At least one of the second limiting arms is provided on the third side of the limiting frame. The second sub-limiting arm corresponding to at least one of the second limiting arms is rotatably connected to the corresponding second sub-connecting arm along a second rotation axis. Among them, the second side and the third side are opposite sides of the limiting frame;

[0016] The limiting structure further includes a driving member and a transmission assembly. The transmission assembly is connected between the output end of the driving member and the first limiting arm and the second limiting arm. The driving member can drive the first limiting arm and the second limiting arm to move synchronously through the transmission assembly to switch between the limiting position and the release position.

[0017] Further, the transmission assembly includes a first connecting rod and a second connecting rod. The first connecting rod connects the two first sub-limiting arms, and the second connecting rod connects the two second sub-limiting arms;

[0018] A first link and a second link. The first end of the first link is connected to the first connecting rod, and the first end of the second link is connected to the second connecting rod; and

[0019] A crank, which is provided at the output end of the driving member, and the second ends of the first connecting rod and the second connecting rod are respectively connected to the crank.

[0020] Further, the first sub-limiting arm is formed with a first hook portion, and the second sub-limiting arm is formed with a second hook portion;

[0021] When the limiting member is in the limiting position, the first hook portion and the second hook portion respectively limit and support the opposite sides of the consumable cartridge.

[0022] Further, the consumable cartridge is carried by a bracket, and the bracket is provided with a first hook portion corresponding to the first hook portion and a second hook portion corresponding to the second hook portion;

[0023] When the bracket moves to drive the consumable cartridge to reach the loading position, the first hook portion and the second hook portion move synchronously under the drive of the driving member and are respectively connected to the corresponding first hook portion and the second hook portion.

[0024] Further, when the limiting member is in the limiting position, the first sub-limiting arm and / or the second sub-limiting arm are limited to the bottom of the consumable cartridge.

[0025] Further, the consumable cartridge is carried by a bracket, and when the bracket moves to drive the consumable cartridge to reach the loading position, the first sub-limiting arm and / or the second sub-limiting arm are limited to the bottom of the consumable cartridge.

[0026] Further, the limiting member is provided on the bracket;

[0027] When the consumable cartridge moves to the loading position, the limiting member moves relative to the bracket and limits and supports the bottom of the consumable cartridge.

[0028] On the other hand, the present application also provides a conveying module, and the conveying module includes the limiting structure described in any one of the above.

[0029] Further, the conveying module further includes a lifting drive module, and the lifting drive module is used to drive the consumable cartridge to move in the vertical direction so that the consumable cartridge moves between the loading position, the unloading position and the loading position;

[0030] A loading module, which is used to convey the consumable cartridge to the lifting drive module located at the loading position; and

[0031] An unloading module, which is used to recover the consumable cartridge from the lifting drive module located at the unloading position.

[0032] In another aspect, the present application also provides a sample analyzer, and the sample analyzer includes the conveying module described in any one of the above.

[0033] In the limiting structure of the present application, by providing a limiting member to limit the consumable cartridge after it reaches the loading position, the consumable cartridge no longer relies on the driving device for support and limitation. Furthermore, after the driving device drives the consumable cartridge to the loading position, it is possible to avoid most of the force applied to the target pipetting head by the pipetting device when loading the pipetting head from being transmitted to the driving device through the consumable cartridge. Therefore, the limiting structure of the present application can reduce or avoid the transmission of force from the pipetting device to the driving device when loading the pipetting head, so that the driving device can stably drive the consumable cartridge to the loading position repeatedly. Description of the Drawings

[0034] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0035] Figure 1 It is a schematic diagram of the limiting structure in an embodiment disclosed in the present application.

[0036] Figure 2 It is another perspective schematic diagram of the limiting structure in an embodiment disclosed in the present application.

[0037] Figure 3 It is a schematic diagram of the bracket in an embodiment disclosed in the present application.

[0038] Figure 4 It is a schematic diagram of the conveying module corresponding to the consumable cartridge when it is in the loading position in an embodiment disclosed in the present application.

[0039] Figure 5 It is a schematic diagram of the conveying module corresponding to the consumable cartridge when it is in the loading position in an embodiment disclosed in the present application.

[0040] Figure 6 It is a schematic diagram of the conveying module corresponding to the consumable cartridge when it is in the unloading position in an embodiment disclosed in the present application.

[0041] Among them, the above-mentioned drawings include the following reference numerals:

[0042] The first sub-connecting arm 111, the first sub-limiting arm 112, the first hook portion 1121, the first limiting groove 1122, the first rotation axis 113, the second sub-connecting arm 121, the second sub-limiting arm 122, the second hook portion 1221, the second limiting groove 1222, the second rotation axis 123, the limiting frame 20, the driving member 30, the first connecting rod 41, the second connecting rod 42, the first link 43, the second link 44, the crank 45, the groove-shaped optocoupler 51, the optocoupler shutter 52, the second detection unit 60, the consumable cartridge 200, the driving device 300, the bracket 400, the bracket 500, the first hooking portion 510, the second hooking portion 520, the transmission mechanism 530, the limiting rod 540, the lifting driving module 600, the loading module 700, the unloading module 800. Detailed implementation manners

[0043] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0044] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangements of the components and steps set forth in these embodiments, the numerical expressions and values do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but should be regarded as part of the authorized specification when appropriate. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0046] Please refer to Figure 1-6As shown in the figure, the present application provides a limiting structure, which can be used to limit the consumable cartridge 200 located at the loading position, so as to avoid the force when the pipetting device loads the pipetting head acting on the driving device 300 carrying the consumable cartridge 200, resulting in the running accuracy of the driving device 300 being affected and the consumable cartridge 200 containing the pipetting head cannot be accurately conveyed to the loading position repeatedly.

[0047] Further, the limiting structure includes a limiting member, which has a limiting position and a release position. When the limiting member is in the limiting position, the limiting member can be used to limit and support the consumable cartridge 200 located at the loading position. At this time, the consumable cartridge 200 can be stably held at the loading position only by the limiting support of the limiting member, and the driving device 300 that drives the consumable cartridge 200 to move to the loading position can no longer support the consumable cartridge 200. Therefore, the force when the pipetting device loads the pipetting head can be reduced or even avoided from acting on the driving device 300, so that the driving device 300 can repeatedly and accurately convey the consumable cartridge 200 to the loading position.

[0048] Further, when the limiting member is in the release position, the consumable cartridge 200 can move to the loading position or leave the loading position under the drive of the driving device 300. At this time, the pipetting device no longer loads the pipetting head, and the limiting member will not limit the consumable cartridge 200.

[0049] In this embodiment, the limiting member can be, but is not limited to, a structural member such as a bolt or a telescopic rod that can support and limit the consumable cartridge 200 located at the loading position.

[0050] In the first implementation manner, the driving device 300 is a horizontal driving device, and the horizontal driving device is used to drive the consumable cartridge 200 to move to the loading position in the horizontal direction, or to leave the loading position in the horizontal direction.

[0051] In the second implementation manner, the driving device 300 is a lifting driving device, and the lifting driving device is used to drive the consumable cartridge 200 to move to the loading position in the vertical direction, or to leave the loading position in the vertical direction.

[0052] Further, the limiting structure further includes a limiting frame 20, which is connected to the bracket 400 and is used to limit the consumable cartridge 200 located at the loading position in the horizontal direction. At the same time, the limiting member can be used to limit and support the consumable cartridge 200 in the vertical direction, so as to realize the multi-directional limiting of the consumable cartridge 200 and the vertical support, so that the consumable cartridge 200 can be more accurately supported and limited at the loading position.

[0053] In one embodiment, the limiting member includes at least one first limiting arm, and the first limiting arm includes a first sub-connecting arm 111 and a first sub-limiting arm 112. The first sub-connecting arm 111 is connected between the first sub-limiting arm 112 and the limiting frame 20. Wherein, the first sub-connecting arm 111 can rotate relative to the limiting frame 20 under the action of an external force to drive the first sub-limiting arm 112 to move between the limiting position and the release position; or, the first sub-limiting arm 112 can move relative to the first sub-connecting arm 111 between the limiting position and the release position under the action of an external force.

[0054] Further, when the limiting member is in the limiting position, the first sub-limiting arm 112 limits and supports the consumable cartridge 200. When the limiting member is in the release position, the consumable cartridge 200 can move to the loading position or leave the loading position.

[0055] In some embodiments, the limiting member includes two such first limiting arms, and the two first limiting arms are connected to the same side of the limiting frame 20.

[0056] Further, the limiting member further includes at least one second limiting arm, and the second limiting arm is connected to the limiting frame 20 and is located on the adjacent side and / or the opposite side of the first limiting arm. The second limiting arm and the first limiting arm cooperate to simultaneously support, limit or release the consumable cartridge 200.

[0057] In this embodiment, by arranging the first limiting arm and the second limiting arm on different sides of the limiting frame 20 to simultaneously support and limit the consumable cartridge 200, and cooperating with the limiting frame 20, the support and limiting effect on the consumable cartridge 200 can be effectively improved.

[0058] Further, the second limiting arm includes a second sub-connecting arm 121 and a second sub-limiting arm 122, and the second sub-connecting arm 121 is connected between the second sub-limiting arm 122 and the limiting frame 20.

[0059] The second sub-connecting arm 121 can rotate relative to the limiting frame 20 under the action of an external force to drive the second sub-limiting arm 122 to move between the limiting position and the releasing position; alternatively, the second sub-limiting arm 122 can move relative to the second sub-connecting arm 121 between the limiting position and the releasing position under the action of an external force.

[0060] Further, when the limiting member is in the limiting position, the first sub-limiting arm 112 and the second sub-limiting arm 122 respectively limit and support the consumable cartridge 200. When the limiting member is in the releasing position, the consumable cartridge 200 can move to the loading position or leave from the loading position.

[0061] In one embodiment, the first side of the limiting frame 20 is connected to the bracket 400. At least one of the first limiting arms is provided on the second side of the limiting frame 20. The first sub-limiting arm 112 corresponding to at least one of the first limiting arms is rotatably connected to the corresponding first sub-connecting arm 111 along the first rotation axis 113.

[0062] At least one of the second limiting arms is provided on the third side of the limiting frame 20. The second sub-limiting arm 122 corresponding to at least one of the second limiting arms is rotatably connected to the corresponding second sub-connecting arm 121 along the second rotation axis 123.

[0063] Further, the second side and the third side are opposite sides of the limiting frame 20. At least one of the first limiting arms and at least one of the second limiting arms are oppositely arranged on the limiting frame 20, and the oppositely arranged first limiting arm and second limiting arm can be used to simultaneously support and limit or release the consumable cartridge 200.

[0064] Further, the limiting structure further includes a driving member 30 and a transmission assembly. The transmission assembly is connected between the output end of the driving member 30 and the first limiting arm and the second limiting arm. That is to say, the transmission assembly includes a part connected between the first limiting arm and the output end of the driving member 30, and a part connected between the second limiting arm and the output end of the driving member 30. Therefore, the driving member 30 can drive the first limiting arm and the second limiting arm to move synchronously through the transmission assembly to switch between the limiting position and the releasing position. Thereby, the control effect on the movement of the limiting member can be improved.

[0065] Further, in one embodiment, the transmission assembly includes a first connecting rod 41 and a second connecting rod 42. The first connecting rod 41 connects the two first sub-limiting arms 112 so that the two first sub-limiting arms 112 can move synchronously. The second connecting rod 42 connects the two second sub-limiting arms 122 so that the two second sub-limiting arms 122 can move synchronously.

[0066] The transmission assembly further includes a first link 43, a second link 44, and a crank 45. The crank 45 is provided at the output end of the driving member 30. The first end of the first link 43 is connected to the first connecting rod 41, and the second end of the first link 43 is connected to the crank 45. The first end of the second link 44 is connected to the second connecting rod 42, and the second end of the second link 44 is connected to the crank 45.

[0067] In this embodiment, by providing a transmission structure in which the crank 45 cooperates with the link, the driving member 30 can drive the two first sub-limiting arms 112 and the two second sub-limiting arms 122 to move synchronously between the limiting position and the releasing position.

[0068] Further, in the first embodiment, the first sub-limiting arm 112 is formed with a first hook portion 1121, and the second sub-limiting arm 122 is formed with a second hook portion 1221. When the limiting member is in the limiting position, the first hook portion 1121 and the second hook portion 1221 respectively hook the opposite sides of the consumable cartridge 200 to realize the limiting support of the consumable cartridge 200.

[0069] Further, in one implementation manner, the consumable cartridge 200 is carried by a bracket 500. The limiting member directly limits and supports the bracket 500, and the limiting frame 20 limits the consumable cartridge 200 in the horizontal direction so that the consumable cartridge 200 is supported and limited.

[0070] Further, the bracket 500 is provided with a first hook portion 510 corresponding to the first hook portion 1121 and a second hook portion 520 corresponding to the second hook portion 1221. The first hook portion 1121 and the second hook portion 1221 move synchronously under the drive of the driving member 30 and are respectively connected to the corresponding first hook portion 510 and the second hook portion 520, so as to realize the limiting support of the bracket 500 and the consumable cartridge 200 by hooking the side surface of the bracket 500. At the same time, the limiting frame 20 limits the consumable cartridge 200 in the horizontal direction, so that the consumable cartridge 200 is limited and supported at the loading position under the cooperation of the bracket 500 and the limiting member.

[0071] Further, in one embodiment, a first limiting groove 1122 is provided on the first sub-limiting arm 112, and the first limiting groove 1122 includes the first hook portion 1121.

[0072] A second limiting groove 1222 is provided on the second sub-limiting arm 122, and the second limiting groove 1222 includes the second hook portion 1221.

[0073] After the bracket 500 moves to the loading position, the driving member 30 drives the first sub-limiting arm 112 and the second sub-limiting arm 122 to move synchronously to the limiting position through the transmission assembly to support and limit the bracket 500 and the consumable cartridge 200 carried thereon. At this time, the first hook portion 1121 is hooked to the first hooking portion 510, and the second hook portion 1221 is hooked to the second hooking portion 520.

[0074] Further, the limiting structure further includes a first detection unit for detecting whether the limiting member supports and limits the bracket 500 located at the loading position.

[0075] In one embodiment, the first detection unit may be a groove-type optical coupler 51 and an optical coupler baffle 52. The groove-type optical coupler 51 may be provided on the bracket 400, and the optical coupler baffle 52 may be provided on the first connecting rod 41. Moreover, the optical coupler baffle 52 can move along with the first connecting rod 41, and when the limiting member supports and limits the consumable cartridge 200 located at the loading position, the optical coupler baffle 52 is detected by the groove-type optical coupler 51.

[0076] It can be understood that the groove-type optical coupler 51 may also be provided on the limiting member, and the optical coupler baffle 52 is correspondingly provided on the bracket 400.

[0077] In another embodiment, the first detection unit is an optical sensor provided on the bracket 400 and used to detect whether the first sub-limiting arm 112 or the second sub-limiting arm 122 is located at the limiting position. When the first sub-limiting arm 112 or the second sub-limiting arm 122 limits and supports the bracket, the light emitted by the optical sensor will be blocked and reflected by the first sub-limiting arm 112 or the second sub-limiting arm 122.

[0078] Further, a second detection unit 60 is provided on the bracket 500 or the bracket 400, and the second detection unit 60 is used to detect whether the consumable cartridge 200 moves to the loading position.

[0079] Further, when a consumable cartridge 200 needs to move to the loading position, the lifting drive device first drives the consumable cartridge 200 to move upward in the vertical direction and cross a certain distance beyond the loading position; then, the driving member 30 drives the first sub-limiting arm 112 and the second sub-limiting arm 122 to move relatively in a direction approaching each other until the first hook portion 1121 is hooked to the first hooking portion 510, and the second hook portion 1221 is hooked to the second hooking portion 520; then, the lifting drive device drives the bracket 500 to drive the consumable cartridge 200 to move downward in the vertical direction to the loading position, so that the first hook portion 1121 and the second hook portion 1221 are respectively hooked to the corresponding first hooking portion 510 and the second hooking portion 520.

[0080] When a consumable cartridge 200 needs to leave the loading position, the lifting drive device first drives the consumable cartridge 200 to move upward in the vertical direction by a certain distance, so that the first hook portion 1121 on the bracket 500 carrying the consumable cartridge 200 is disengaged from the corresponding first hooking portion 510, and the second hook portion 1221 is disengaged from the corresponding second hooking portion 520; then, the driving member 30 drives the first sub-limiting arm 112 and the second sub-limiting arm 122 to move in a direction away from each other; then, the lifting drive device drives the bracket 500 to drive the consumable cartridge 200 to leave the loading position.

[0081] In the second embodiment, when the limiting member is in the limiting position, the first sub-limiting arm 112 and / or the second sub-limiting arm 122 are respectively limited to the bottom of the consumable cartridge 200, so as to hold the consumable cartridge 200 at the loading position by supporting and limiting the bottom of the consumable cartridge 200.

[0082] Further, the consumable cartridge 200 is carried by the bracket 500. When the bracket 500 moves to drive the consumable cartridge 200 to reach the loading position, the first sub-limiting arm 112 and / or the second sub-limiting arm 122 are limited to the bottom of the consumable cartridge 200.

[0083] Further, the limiting member is provided on the bracket 400. When the consumable cartridge 200 moves to the loading position, the limiting member moves relative to the bracket 400 and is supported and limited on the bottom of the consumable cartridge 200.

[0084] In this embodiment, the limiting member can be but is not limited to structural members such as a plug pin, a telescopic rod, etc. that can support and limit the consumable cartridge 200.

[0085] On the other hand, please refer to again Figure 4-6As shown, the present application further provides a conveying module, and the conveying module includes the limiting structure described in any one of the above. Therefore, the conveying module has all the beneficial effects of the above-mentioned limiting structure, which will not be elaborated here.

[0086] Further, the conveying module is used to convey the consumable cartridge 200 so that the consumable cartridge 200 can move to the loading position or leave from the loading position.

[0087] Further, the conveying module further includes a lifting drive module 600, a loading module 700, and an unloading module 800.

[0088] The lifting drive module 600 is used to drive the consumable cartridge 200 to move in the vertical direction, or the bracket 500 carrying the consumable cartridge 200 to move synchronously in the vertical direction, so that the consumable cartridge 200 moves between the loading position, the unloading position, and the loading position. Among them, the lifting drive module 600 includes the drive device 300.

[0089] The loading module 700 is used to convey the consumable cartridge 200 carrying the pipetting head to the lifting drive module 600 located at the loading position, so that the lifting drive module 600 can convey the consumable cartridge 200 to the loading position.

[0090] The unloading module 800 is used to recover the consumable cartridge 200 from the lifting drive module 600 located at the unloading position. That is, when all the pipetting heads carried by a consumable cartridge 200 are loaded by the pipetting device, the lifting drive module 600 will drive the consumable cartridge 200 to move from the loading position to the unloading position. At this time, the consumable cartridge 200 moves from the bracket 500 to the unloading module 800 and is taken away by the unloading module 800.

[0091] Further, a transmission mechanism 530 is provided on the bracket 500. The transmission mechanism 530 can be used to carry the consumable cartridge 200 and convey the carried consumable cartridge 200 to the unloading module 800 at the unloading position.

[0092] Further, the transmission mechanism 530 can also cooperate with the loading module 700 at the loading position to convey a consumable cartridge 200 from the loading module 700 to the transmission mechanism 530 for carrying, so that the lifting drive module 600 can drive the consumable cartridge 200 to move to the loading position.

[0093] In another aspect, the present application also provides a sample analyzer, and the sample analyzer includes the conveying module described in any one of the above. Therefore, the sample analyzer has all the beneficial effects possessed by the above-mentioned conveying module, which will not be elaborated here.

[0094] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures for the device. For example, if the device in the figure is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0095] In addition, it should be noted that the use of terms such as "first", "second" to limit components is only for the convenience of differentiating the corresponding components. Without further statement, the above terms have no special meaning, and thus should not be construed as limiting the protection scope of the present application.

[0096] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A limiting structure is provided on a bracket, characterized in that, Comprising a limiting member, the limiting member having a limiting position and a release position; When the limiting member is in the limiting position, it can be used to limit and support a consumable cartridge located at the loading position. When the limiting member is in the release position, the consumable cartridge can move to the loading position or leave from the loading position under the drive of a driving device.

2. The limiting structure according to claim 1, wherein, The limiting structure further includes a limiting frame, the limiting frame being connected to the bracket and used to limit the consumable cartridge located at the loading position in the horizontal direction; The limiting member includes at least one first limiting arm, the first limiting arm including a first sub-connecting arm and a first sub-limiting arm, the first sub-connecting arm being connected between the first sub-limiting arm and the limiting frame; When the limiting member is in the limiting position, the first sub-limiting arm limits and supports the consumable cartridge. When the limiting member is in the release position, the consumable cartridge can move to the loading position or leave from the loading position.

3. The limiting structure according to claim 2, characterized in that The limiting member further includes at least one second limiting arm, the second limiting arm being connected to the limiting frame and located on the adjacent side and / or the opposite side of the first limiting arm, the second limiting arm including a second sub-connecting arm and a second sub-limiting arm, the second sub-connecting arm being connected between the second sub-limiting arm and the limiting frame; When the limiting member is in the limiting position, the first sub-limiting arm and the second sub-limiting arm respectively limit and support the consumable cartridge. When the limiting member is in the release position, the consumable cartridge can move to the loading position or leave from the loading position.

4. The limit structure according to claim 3, characterized in that, The first side of the limiting frame is connected to the bracket; At least one of the first limiting arms is provided on the second side of the limiting frame, and the first sub-limiting arm corresponding to at least one of the first limiting arms is rotatably connected to the corresponding first sub-connecting arm along a first rotation axis; At least one of the second limiting arms is provided on the third side of the limiting frame, and the second sub-limiting arm corresponding to at least one of the second limiting arms is rotatably connected to the corresponding second sub-connecting arm along a second rotation axis, wherein the second side and the third side are opposite sides of the limiting frame; The limiting structure further includes a driving member and a transmission assembly, the transmission assembly being connected between the output end of the driving member and the first limiting arm and the second limiting arm, and the driving member can drive the first limiting arm and the second limiting arm to move synchronously through the transmission assembly to switch between the limiting position and the release position.

5. The limit structure according to claim 4, characterized in that, The transmission assembly includes a first connecting rod and a second connecting rod, the first connecting rod connecting two of the first sub-limiting arms, and the second connecting rod connecting two of the second sub-limiting arms; A first link and a second link, the first end of the first link being connected to the first connecting rod, and the first end of the second link being connected to the second connecting rod; And A crank, the crank being provided at the output end of the driving member, and the second ends of the first link and the second link being respectively connected to the crank.

6. The limit structure according to claim 5, characterized in that, The first sub-limiting arm is configured to form a first hook portion, and the second sub-limiting arm is configured to form a second hook portion; When the limiting member is in the limiting position, the first hook portion and the second hook portion respectively limit and support opposite sides of the consumable cartridge.

7. The limiting structure according to claim 6, characterized in that, The consumable cartridge is carried by a bracket, and the bracket is provided with a first hook portion corresponding to the first hook portion and a second hook portion corresponding to the second hook portion; When the bracket moves to drive the consumable cartridge to reach the loading position, the first hook portion and the second hook portion move synchronously under the drive of the driving member and are respectively connected to the corresponding first hook portion and the second hook portion.

8. The limiting structure according to claim 5, characterized in that, When the limiting member is in the limiting position, the first sub-limiting arm and / or the second sub-limiting arm are limited to the bottom of the consumable cartridge.

9. The limiting structure according to claim 8, wherein The consumable cartridge is carried by a bracket, and when the bracket moves to drive the consumable cartridge to reach the loading position, the first sub-limiting arm and / or the second sub-limiting arm are limited to the bottom of the consumable cartridge.

10. The limiting structure according to claim 1, wherein The limiting member is provided on the bracket; When the consumable cartridge moves to the loading position, the limiting member moves relative to the bracket and limits and supports the bottom of the consumable cartridge.

11. A conveying module, characterized in that, The conveying module includes the limiting structure according to any one of claims 1-10.

12. The conveying module according to claim 11, wherein, The conveying module further includes a lifting drive module for driving the consumable cartridge to move in the vertical direction so that the consumable cartridge moves between the loading position, the unloading position, and the loading position; A loading module for conveying the consumable cartridge onto the lifting drive module located at the loading position; And An unloading module for retrieving the consumable cartridge from the lifting drive module located at the unloading position.

13. A sample analyzer, characterized in that, The sample analyzer includes the conveying module according to any one of claims 11-12.

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