CN114291563B

CN114291563B - Sample buffer memory device

Info

Publication number: CN114291563B
Application number: CN202111674590.2A
Authority: CN
Inventors: 雷恒波; 武文强; 曹翔; 程耀辉
Original assignee: Nanjing Guoke Precision Medical Technology Co ltd
Current assignee: Nanjing Guoke Precision Medical Technology Co ltd; Suzhou Institute of Biomedical Engineering and Technology of CAS
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-07-25
Anticipated expiration: 2041-12-31
Also published as: CN114291563A

Abstract

The invention provides a sample buffer device, comprising: a frame for forming a support structure; a clamping mechanism for clamping a sample rack loaded with at least one sample tube; the stop mechanism is used for stopping the sample rack on the transmission module at the area to be clamped; the transfer mechanism is provided with a first X-direction moving assembly, a first motor and a push rod; a refrigerator for refrigerating a sample rack loaded with sample tubes to be quality controlled; the first accommodating groove and the second accommodating groove are respectively arranged at two sides of the transfer mechanism; the second accommodating groove is positioned between the transfer mechanism and the refrigerator; the buffer mechanism is provided with a plurality of buffer grooves which are sequentially arranged in parallel; the carrying mechanism is provided with a third accommodating groove for transferring the sample rack; the clamping mechanism clamps the sample rack and then places the sample rack in the first accommodating groove. The structure is simple and compact, the operation is simple and convenient, the sample rack is stable to transport, and the buffer storage and the detection efficiency are improved when the full-automatic detection function of the analysis equipment is realized by matching with the transmission module and the analysis module.

Description

Sample buffer memory device

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a sample caching device.

Background

An automatic in-vitro detection analyzer is a device for automatically detecting blood, body fluid and tissue, and generally comprises a sample injection module for inputting a sample, a detection module for detecting the sample and a sample buffering module. The existing sample buffer module is generally simple in structure and single in function.

Disclosure of Invention

In order to achieve the above object, the present invention is achieved by the following technical solutions.

The invention provides a sample buffer device, comprising:

a frame for forming a support structure;

a clamping mechanism for clamping a sample rack loaded with at least one sample tube;

the stop mechanism is used for stopping the sample rack on the transmission module at the area to be clamped;

the transfer mechanism is provided with a first X-direction moving assembly, a first motor and a push rod;

a refrigerator for refrigerating a sample rack loaded with sample tubes to be quality controlled;

the first accommodating groove and the second accommodating groove are respectively arranged at two sides of the transfer mechanism; the second accommodating groove is positioned between the transfer mechanism and the refrigerator;

the buffer mechanism is provided with a plurality of buffer grooves which are sequentially arranged in parallel;

the carrying mechanism is provided with a third accommodating groove for transferring the sample rack;

the clamping mechanism clamps the sample rack and then places the sample rack in the first accommodating groove;

During caching, the carrying mechanism carries the sample rack out of the first accommodating groove and transfers the sample rack to the caching groove for caching;

during detection, the carrying mechanism transfers the sample rack to be detected to the second accommodating groove, the first motor drives the push rod to rotate to prop against the sample rack in the second accommodating groove, and the first X-direction moving assembly drives the sample rack to be pushed out to the detection module;

during retesting, the second accommodating groove receives the detected sample rack and transfers the sample rack to the buffer groove through the carrying mechanism for retesting.

Preferably, the bottoms of the first accommodating groove, the second accommodating groove, the third accommodating groove and the buffer groove are respectively provided with a through groove with one side open; the carrying mechanism is provided with a second X-direction moving assembly, a first Z-direction moving assembly, a hook claw and a first Y-direction moving assembly; wherein the first Y-direction moving component is fixed on the frame; the second X-direction moving assembly is respectively connected with the first Y-direction moving assembly and the first Z-direction moving assembly;

the first Z-direction moving assembly drives the hook claw to lift to extend into the corresponding through groove to hook the sample rack, so that the sample rack is transferred into or out of the third accommodating groove under the driving of the second X-direction moving assembly; or the first Z-direction moving component drives the hook claw to descend so that the hook claw can move along the X direction under the corresponding through groove.

Preferably, the clamping mechanism comprises:

two clamping parts for clamping or loosening the sample rack;

the second Y-direction moving assembly is fixed on the frame and used for driving the two clamping parts to synchronously move along the Y direction;

a rotating member connected to the second Y-direction moving assembly for forming a rotational driving force;

two first bearings; one end of each first bearing is fixed on the rotating end face of the rotating piece, and the other end of each first bearing is propped against the inner side of one clamping part;

the first guide rail extends along the Y direction and is connected with the second Y-direction moving assembly; the two first sliding blocks are respectively connected with the two clamping parts;

the rotating piece rotates to drive the two first bearings to rotate, so that the two first sliding blocks move reversely or oppositely along the first guide rail to open and close the two clamping parts.

Preferably, the clamping mechanism further comprises a first mounting plate and a second mounting plate; the first mounting plate is connected to the frame;

the second Y-direction moving assembly is fixed on the first mounting plate and comprises a first belt transmission assembly, a second guide rail and a second sliding block which are matched with each other;

the second mounting plate is respectively connected with the second sliding block and the first belt clamping block of the first belt transmission assembly; the rotating member is fixed to the second mounting plate.

Preferably, the rotating member comprises a second belt transmission assembly, the bottom wall of the driven wheel of which is respectively connected with the two first bearings, and the two first bearings are respectively positioned at two sides of the rotating shaft of the driven wheel;

the clamping mechanism further comprises a second Z-direction driving assembly, wherein the second Z-direction driving assembly comprises two second bearings, a cam, a first spring, two second springs, two connecting plates and two third guide rails; the connecting plate is respectively connected with the third guide rail and the first sliding block; the clamping part is connected with the third guide rail in a sliding way; the second bearings are respectively fixed on the inner sides of the clamping parts, and two ends of the first spring are respectively connected with the two connecting plates; the cam is coaxially connected with the output shaft of the rotating piece, and the upper surface or the lower surface of the cam is a special-shaped surface; the two second bearings are oppositely arranged and respectively pressed against the special-shaped surface; two ends of the second spring are respectively connected with the matched clamping part and the outer end of the second bearing.

Preferably, the stop mechanism comprises a first mounting seat, a third Y-direction moving assembly and a stop rod; the first mounting seat is fixed on the frame;

the third Y-direction moving assembly is mounted on the first mounting seat and used for driving the stop rod to move along the Y direction so as to correspond to the position of the sample rack conveyed along the X direction on the conveying module, so that the sample rack is stopped.

Preferably, the stop mechanism comprises a third Z-direction moving assembly and a plurality of guide plates;

the guide plates are sequentially arranged in parallel; two adjacent guide plates form a passageway so as to correspond to different transmission track positions of the transmission module; the third Z-direction moving assembly is fixed on the first mounting seat so as to drive the guide plates to synchronously move in the Z direction.

Preferably, the transfer mechanism includes a second mount fixed to the frame; the first X-direction moving assembly and the first motor are respectively fixed on the second mounting seat;

the push rod is U-shaped, and two ends of the push rod are respectively and rotatably connected with output shafts at two ends of the first motor; the push rod rotates to frame or loosen the sample rack in the second accommodating groove;

the first accommodating groove is fixed on one side of the second mounting seat, which is away from the push rod.

Preferably, the handling mechanism comprises a third mount; the third mounting seat is provided with a hollow cavity and is connected with the first Y-direction moving assembly; the third accommodating groove is arranged above the third mounting seat; one end of the second X-direction moving component stretches into the hollow cavity, and the other end of the second X-direction moving component stretches out of the third installation seat towards the buffer mechanism.

Preferably, a fourth accommodating groove is arranged at one end of the buffer mechanism, which is far away from the clamping mechanism, and is used for sample loading;

the code scanner is arranged on one side of the fourth accommodating groove, which is opposite to the cache groove;

the clamping mechanism, the stopping mechanism, the transferring mechanism and the carrying mechanism are all provided with at least one position detection assembly.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a sample buffer device which is simple and compact in structure, simple and convenient to operate, stable in sample frame transfer, and capable of improving buffer and detection efficiency while realizing full-automatic detection function of analysis equipment by matching with a transmission module and an analysis module.

The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

Fig. 1 is a schematic perspective view of a device body according to the present invention;

FIG. 2 is a schematic perspective view of a clamping mechanism according to the present invention;

FIG. 3 is a front view of the clamping mechanism of the present invention;

FIG. 4 is a side view of the clamping mechanism of the present invention;

FIG. 5 is a schematic perspective view of a cam according to the present invention;

FIG. 6 is a schematic perspective view of a stop mechanism according to the present invention;

FIG. 7 is a schematic perspective view of a transfer mechanism according to the present invention;

fig. 8 is a schematic diagram of an assembly structure of a second accommodating groove, a refrigerator, a buffer mechanism, a fourth accommodating groove and a code scanner according to the present invention;

FIG. 9 is a schematic perspective view of a carrying mechanism according to the present invention;

FIG. 10 is an enlarged view of a part of the carrying mechanism of the present invention;

fig. 11 is a plan view of the device body of the present invention.

In the figure: 100. a device body;

10. a frame;

20. a clamping mechanism; 21. a clamping part; 22. a second Y-direction moving assembly; 221. a second guide rail; 222. a second slider; 23. a rotating member; 231. driven wheel; 24. a first bearing; 251. a first guide rail; 252. a first slider; 261. a first mounting plate; 262. a second mounting plate; 27. a second Z-direction moving assembly; 271. a second bearing; 272. a cam; 2721. a special-shaped surface; 273. a first spring; 274. a second spring; 275. a connecting plate; 2751. a first plate body; 2752. a second plate body; 2753. a connecting column; 2754. a third plate body;

30. A stop mechanism; 31. a first mount; 32. a first Y-direction moving assembly; 321. a fourth guide rail; 33. a stop lever; 34. a third Z-direction moving assembly; 341. a third belt drive assembly; 342. a fifth guide rail; 35. a guide plate; 36. an adapter; 37. a third spring;

40. a transfer mechanism; 41. a first X-direction moving assembly; 42. a first motor; 43. a push rod; 44. a second mounting base;

50. a refrigerator;

61. a first accommodation groove; 62. A second accommodation groove; 63. A fourth accommodating groove;

70. a buffer mechanism; 71. A cache groove;

80. a carrying mechanism; 81. a third accommodation groove; 82. a second X-direction moving assembly; 821. a fifth belt drive assembly; 822. a seventh guide rail; 83. a first Z-direction moving assembly; 831. an eighth rail; 84. a hook claw; 85. a first Y-direction moving assembly; 851. a fourth belt drive assembly; 852. a sixth guide rail; 86. a third mount; 861. a hollow cavity; 87. a third mounting plate; 88. a fourth mounting plate; 89. a mounting base;

90. a code scanner.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses only a portion of, but not all, embodiments of the present invention. All other examples, which a person of ordinary skill in the art would obtain without undue burden based on the embodiments of the invention, are within the scope of the invention.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the top-to-bottom dimension, "width" corresponds to the left-to-right dimension, and "depth" corresponds to the front-to-back dimension. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms (e.g., "connected" and "attached") referring to an attachment, coupling, etc., refer to a relationship wherein these structures are directly or indirectly secured or attached to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

Example 1

The present invention provides a sample buffer device, as shown in fig. 1, 7 and 11, comprising a device body 100 provided in an analysis apparatus, the device body 100 comprising:

A frame 10 for forming a support structure;

a holding mechanism 20 for holding a sample rack loaded with at least one sample tube;

a stop mechanism 30 for stopping the sample rack on the transport module in the analysis device at the region to be clamped;

a transfer mechanism 40 provided with a first X-direction moving unit 41, a first motor 42, and a push rod 43;

a refrigerator 50 for refrigerating a sample rack loaded with sample tubes to be quality controlled;

a first accommodation groove 61 and a second accommodation groove 62 respectively provided on both sides of the transfer mechanism 40; the second accommodation groove 62 is located between the transfer mechanism 40 and the refrigerator 50;

the buffer mechanism 70 is provided with a plurality of buffer grooves 71 which are sequentially arranged in parallel;

a carrying mechanism 80 provided with a third accommodation groove 81 for transferring the sample rack;

wherein the clamping mechanism 20 clamps the sample rack and then is placed in the first accommodating groove 61;

in the buffer storage, the carrying mechanism 80 carries the sample rack out of the first accommodating groove 61 and transfers the sample rack to the buffer storage groove 71 for buffer storage;

during detection, the carrying mechanism 80 transfers the sample rack to be detected to the second accommodating groove 62, the first motor 42 drives the push rod 43 to rotate to prop against the sample rack in the second accommodating groove 62, and the first X-direction moving component 41 drives the sample rack to be pushed out to a detection module of analysis equipment;

In the test, the second accommodating groove 62 receives the detected sample rack, and transfers the sample rack to the buffer groove 71 for test again through the carrying mechanism 80.

In this embodiment, the device body 100, the transmission module and the detection module of the analysis device together form a continuous operation line for sample injection, buffer storage and detection. The device body 100 is provided with the clamping mechanism 20, the stop mechanism 30, the transfer mechanism 40, the refrigerator 50, the buffer mechanism 70 and the carrying mechanism 80, and all the mechanical units are compactly arranged, so that the buffer efficiency is improved while the whole size of the device body 100 is reduced.

The clamping mechanism 20 is provided to transfer the sample rack between the transfer module and the device body 100, and in addition, the clamping mechanism 20 is integrated on the device body 100, so as to accelerate the transfer of the sample rack to the buffer mechanism 70.

A stop mechanism 30 is provided to limit the stop position of the sample rack transported by the transport module, so as to limit the clamping position of the sample rack, so that the clamping mechanism 20 can clamp the sample rack conveniently.

A transfer mechanism 40 is provided for transferring the sample rack located in the second receiving groove 62 to the analysis unit to realize a full automatic detection function of the analysis device.

The refrigerator 50 is provided for temporarily storing a sample rack for quality control so as to facilitate subsequent quality control detection.

The buffer mechanism 70 is provided for buffering at least one sample rack, and the buffer slot 71 can be used for buffering the sample rack to be detected and also can be used for buffering the sample to be retested after detection. When the buffer slot 71 is used for buffering the sample rack to be detected, the clamping mechanism 20 places the sample rack in the first accommodating slot 61, and the carrying mechanism 80 transfers the sample rack from the first accommodating slot 61 to the third accommodating slot 81 and then to the buffer slot 71 for buffering. When the buffer slot 71 is used for buffering the sample rack to be retested, the transfer mechanism 40 transfers the sample rack after the analysis module is detected to the second accommodating slot 62, and the carrying mechanism 80 transfers the sample rack from the second accommodating slot 62 to the third accommodating slot 81 and then to the buffer slot 71 for buffering.

The device body 100 is simple and compact in structure, simple and convenient to operate, stable in sample rack transportation, and capable of improving buffering and detecting efficiency while realizing full-automatic detecting functions of analysis equipment by matching with the transmission module and the analysis module.

It should be understood that, in this embodiment, the direction in which the clamping mechanism 20, the stop mechanism 30, the transfer mechanism 40, the refrigerator 50, and the carrying mechanism 80 are sequentially arranged is described as the Y direction, and the direction in which the transmission module, the apparatus body 100, and the analysis module are sequentially arranged is described as the X direction. In another embodiment, the direction in which the clamping mechanism 20, the stop mechanism 30, the transfer mechanism 40, the refrigerator 50, and the carrying mechanism 80 are sequentially arranged is the X direction, and the direction in which the transmission module, the device body 100, and the analysis module are sequentially arranged is the Y direction.

In an embodiment, as shown in fig. 1, 8, 9, 10, and 11, the bottoms of the first accommodating groove 61, the second accommodating groove 62, the third accommodating groove 81, and the buffer groove 71 are respectively provided with a through groove with an opening at one side; the carrying mechanism 80 is provided with a second X-direction moving assembly 82, a first Z-direction moving assembly 83, a hook claw 84 and a first Y-direction moving assembly 85; wherein the first Y-direction moving component 85 is fixed to the frame 10; the second X-direction moving component 82 is respectively connected to the first Y-direction moving component 85 and the first Z-direction moving component 83;

the first Z-direction moving component 83 drives the hook claw 84 to lift to extend into the corresponding through groove to hook the sample rack, so that the sample rack is transferred into or out of the third accommodating groove 81 under the driving of the second X-direction moving component 82; alternatively, the first Z-direction moving assembly 83 drives the hooking jaw 84 to descend so that the hooking jaw 84 can move in the X-direction under the corresponding through slot. Specifically, the first Y-direction moving component 85 is configured to drive the third receiving slot 81 to correspond to the first receiving slot 61 or the second receiving slot 62 or the buffer slot 71 in position for transferring the subsequent sample rack. The first Z-moving assembly 83 is configured to implement lifting movement of the hook claw 84, and after the hook claw 84 descends to be located below the third accommodating groove 81, the hook claw 84 may be driven by the second X-moving assembly 82 to move along the X-direction, so as to adjust a position of the hook claw 84 extending into the bottom through groove of the first accommodating groove 61 or the second accommodating groove 62 or the third accommodating groove 81 or the buffer groove 71, so as to push the sample rack to move in the direction away from or close to the third accommodating groove 81 in the first accommodating groove 61 or the second accommodating groove 62 or the third accommodating groove 81 or the buffer groove 71, so as to implement transfer of the sample rack between different channels. The through grooves of the grooves for placing the sample racks are formed, and the simple and rapid sample rack conveying operation is realized by matching with the structural design of the conveying mechanism 80, so that the conveying efficiency is improved.

Further, as shown in fig. 1, the buffer mechanism 70 is suspended above the table surface of the frame 10, and the buffer mechanism 70 extends in the Y direction. The stop mechanism 30, the transfer mechanism 40, the refrigerator 50 and the buffer mechanism 70 are sequentially arranged and all suspended above the working table of the frame 10. The carrying mechanism 80 is located below the buffer mechanism 70 and extends in the X direction. The table surface of the frame 10, the stop mechanism 30, the transfer mechanism 40, the refrigerator 50 and the buffer mechanism 70 together form a space for forming a movement space of the carrying mechanism 80 in the X and Y directions. The handling mechanism 80 is convenient to move, and the local structure is hidden, so that the probability that the handling accuracy of the handling mechanism 80 is affected due to collision is reduced.

In one embodiment, as shown in fig. 2 to 4, the clamping mechanism 20 includes:

two clamping portions 21 for clamping or unclamping the sample rack;

a second Y-direction moving assembly 22, which is fixed to the frame 10 and is used for driving the two clamping portions 21 to move synchronously along the Y-direction;

a rotary member 23 for forming a rotational driving force;

two first bearings 24; one end of each of the first bearings 24 is fixed to the rotating end surface of the rotating member, and the other end of each of the first bearings abuts against the inner side of one of the clamping portions 21;

A first guide rail 251 and two first sliders 252, wherein the first guide rail 251 extends along the Y direction and is connected to the second Y direction moving assembly 22; the two first sliders 252 are respectively connected to the two clamping portions 21;

the rotation of the rotating member 23 drives the two first bearings 24 to rotate, so that the two first sliding blocks 252 move in opposite directions or opposite directions along the first guide rail 251, and the vertical distance in the Y direction is changed to open and close the two clamping portions 21. Specifically, the second Y-direction moving assembly 22 is configured to enable the two clamping portions 21 to clamp the sample racks located at different Y-positions, so as to increase the clamping range, and is suitable for clamping the sample racks transported by the multiple conveyor belts of the conveying module. The rotation member 23 is engaged with the two first bearings 24 to push the two clamping portions 21 apart to increase the space between the two clamping portions 21 or to release the pushing force to the two clamping portions 21 to decrease the space between the two clamping portions 21. That is, the rotating member 23 rotates forward and backward by a certain angle to change the vertical distance between the two first bearings 24 in the Y direction, thereby controlling the distance between the two clamping portions 21, and further changing the size of the clamping space formed by the two clamping portions 21, so as to clamp or unclamp the sample rack. The rotating member 23 and the two first bearings 24 are simple and compact in structure, and the distance between the two clamping portions 21 is accurately controlled. The two first sliders 252 are slidably connected to the first guide rail 251, respectively, so as to guide and support the movement of the two clamping portions 21 in the Y direction.

Further, the clamping portion 21 is a clamping plate, the clamping force formed by the two clamping plates is enough to clamp the sample rack, and the clamping plate has simple structure and low cost.

Further, the clamping mechanism 20 further comprises a first mounting plate 261 and a second mounting plate 262; the first mounting plate 261 is connected to the frame 10;

the second Y-direction moving assembly 22 is fixed on the first mounting plate 261, and comprises a first belt transmission assembly, a second guide rail 221 and a second slider 222, wherein the second guide rail 221 and the second slider 222 are matched with each other;

the second mounting plate 262 is respectively connected to the second slider 222 and the first belt clamping block of the first belt transmission assembly; the rotating member is fixed to the second mounting plate 262. Specifically, the first belt of the first belt transmission assembly drives the first belt clamping block to move along the Y direction, and the first belt clamping block drives the second mounting plate 262 to move along the Y direction, so that the two clamping parts 21 move along the Y direction. The second guide rail 221 and the second slider 222 cooperate to perform guiding and supporting functions for movement in the Y direction, so that the two clamping portions 21 can move stably in the Y direction. The clamping mechanism 20 has the advantages of simple and small structure, stable operation and large clamping range.

Further, as shown in fig. 2 to 5, the rotating member 23 includes a second belt transmission assembly, the bottom wall of the driven wheel 231 is respectively connected to the two first bearings 24, and the two first bearings 24 are respectively located at two sides of the rotation shaft of the driven wheel 231;

The clamping mechanism 20 further comprises a second Z-drive assembly 27 comprising two second bearings 271, a cam 272, a first spring 273, two second springs 274, two connecting plates 275, two third guide rails 276; one connecting plate 275 is connected to one third guide rail 276 and one first slide block 252 respectively; one of the clamping portions 21 is slidably connected to one of the third guide rails 276; the second bearings 271 are respectively fixed inside the clamping portion 21, and two ends of the first spring 273 are respectively connected to the connecting plates 275; the cam 272 is coaxially connected to the output shaft of the rotating member 23, and the upper surface or the lower surface of the cam is a special-shaped surface 2721; the two second bearings 271 are disposed opposite to each other and respectively pressed against the shaped surface 2721; two ends of the second spring 274 are respectively connected to the outer ends of the clamping portion 21 and the second bearing 271. Specifically, the rotary member 23 provides a stable rotational driving force through the driven pulley 231, so that the two first bearings 24 can stably synchronize forward rotation or reverse rotation. For convenience in design, the inner surface of the bottom of the first accommodating groove 61, the inner surface of the bottom of the second accommodating groove 62, the inner surface of the bottom of the third accommodating groove 81 and the inner surface of the bottom of the buffer groove 71 are in the same horizontal plane, and the clamping mechanism 20 can transfer to the first accommodating groove 61 after clamping the sample rack in the Y direction, but due to assembly errors, the mounting height of the first accommodating groove 61 and/or the clamping mechanism 20 may be slightly wrong, and the clamping mechanism 20 cannot transfer the sample rack to the first accommodating groove 61 directly after clamping the sample rack in the Y direction due to errors, so that the second Z-direction moving assembly 23 is matched with the second bearing 271 through the special-shaped surface 2721 of the cam 272, and during the rotation of the cam 272, the second bearing 271 moves along the special-shaped surface 2721, and the vertical height of the second bearing 271 is further adjusted slightly. When the clamping mechanism 20 clamps the sample rack, the rotating member 23 rotates to reduce the distance between the two clamping portions 21, and the rotating member 23 drives the cam 271 to rotate, so that the second bearing 271 moves upwards along the profiled surface 2721 under the sliding fit of the third guide rail 276 fixed on the connecting plate 275 and the clamping portion 21, and drives the clamping portion 21 to slightly move upwards relative to the corresponding connecting plate 275, so that the clamping mechanism 20 smoothly transfers the sample rack into the first accommodating groove 61. When the clamping mechanism 20 transfers a sample rack, the rotating member 23 rotates to increase the distance between the two clamping portions 21 to facilitate the clamping of the next sample rack, at this time, the second bearing 271 moves downward along the shaped surface 2721 and drives the clamping portions 21 to slightly move downward relative to the corresponding connecting plate 275, so that the two clamping portions 21 are reset to the height for clamping. In addition, when the second bearing 271 moves along the profiled surface 2721, the first spring 273 tightens the two connecting plates 275, so that one end of the second bearing 271 always abuts against the inner side wall of the corresponding connecting plate 275, and the ends facing away from the two second bearings 271 are respectively tightened downward by the second spring 274, so that the circumferential surface of the other end of the second bearing 271 always abuts against the profiled surface 2721 of the cam 272, and thus the micro-longitudinal height adjustment of the two clamping parts 21 is stably realized. The two clamping parts 21 can be opened and closed by the rotary power of one rotary piece 23, and the vertical height of the two clamping parts 21 can be finely adjusted, namely, the opening and closing size and the vertical height range change of the two clamping parts 21 can be simultaneously controlled by the design of the positive and negative angles of the rotary piece 23, so that the structure is simple and small, the miniaturization design of the clamping mechanism 20 is facilitated, and the circuit control is simple.

Further, a clamping portion 21 is connected to a third slider, and is slidably connected to the third rail 276 through the third slider.

Further, the connecting plate 275 is connected to the second mounting plate 262, and the first guide rail 251 is disposed on the lower surface of the second mounting plate 262; the connecting plate 275 includes a first plate 2751, a second plate 2752, two connecting posts 2753, and a third plate 2754. The first plate 2751 is bent, and two ends of the first plate 2751 cross over the second mounting plate 262 and are connected to the upper surface of the second plate 2752, that is, the first guide rail 251 passes through the first plate 2751 of the two connecting plates 275. One end of each connecting column 2753 is fixed on the lower surface of the second plate 2752, and the other end is fixed on two ends of one surface of the third plate 2754. A third rail 276 is secured to a third plate 2754. The two connecting columns 2753 and the third plate 2754 are matched to form a connection structure of the third guide rail 276 and the second plate 2752, and meanwhile, the space between the two connecting columns 2753 can be used for facilitating a user to check or maintain the assembly structure of the second bearing 271, the cam 272, the first spring 273 and the second spring 274, and the problem of dislocation of the error correction assembly structure in time.

In one embodiment, the clamping mechanism 20 is provided with three Y-directional stopping points of the fixed clamping part 21, wherein two stopping points correspond to two clamping areas, one clamping area is used for corresponding to a conveying track of the conveying module so as to clamp the sample rack from the conveying module, and the other clamping area is used for returning the clamped sample rack to a sample return track of the conveying module; the third stopping point corresponds to the first receiving groove 61. The clamping mechanism 20 is provided with three first position detection components, so that the clamping part 21 corresponds to three Y-direction stopping points.

In one embodiment, as shown in fig. 1 and 6, the stop mechanism 30 includes a first mounting seat 31, a third Y-direction moving component 32, and a stop lever 33; the first mounting seat 31 is fixed on the frame 10;

the third Y-direction moving assembly 32 is mounted on the first mounting seat 31, and is configured to drive the stop lever 33 to move along the Y-direction, so as to correspond to the position of the sample rack conveyed along the X-direction on the conveying module, so as to stop the sample rack. Specifically, the third Y-direction moving assembly 32 and the stop lever 33 cooperate to stop the sample rack on the transport module so that the sample rack is located in the clamping area of a particular clamping mechanism 20, in order to simplify the circuit control of the clamping mechanism 20.

Further, the stop mechanism 30 is provided with different second position detecting components to cooperate with the stop lever 33 to stop at different positions in the Y direction, so as to cooperate with sample racks of different conveying tracks of the conveying module to stop. Preferably, in order to simplify the structure, the size and the processing cost of the analysis device, the transmission module is provided with a transmission track, and the stop lever 33 is provided with two stopping points, one corresponding to the transmission track, for stopping the transmitted sample rack, and the other stopping point for letting the clamping mechanism 20 take work.

In one embodiment, the third Y-direction moving component 32 includes a push-pull electromagnet and a fourth guide rail 321 and a fourth slider that are matched with each other; the stop lever 33 is connected to the fourth slider; the push-pull electromagnet drives the stop lever 33 to move along the fourth guide rail 321 through magnetic attraction so as to change the position of the stop lever 33 in the Y direction. Specifically, the stop rod 33 is light, the Y-direction movement of the stop rod 33 is realized by the push-pull electromagnet, the structure is simple and small, and the miniaturization design of the stop mechanism 30 is facilitated.

In one embodiment, the stopping mechanism 30 includes a third Z-direction moving component 34 and a plurality of guide plates 35;

the guide plates 35 are sequentially arranged in parallel; two adjacent guide plates 35 form a channel to correspond to different transmission track positions of the transmission module; the third Z-direction moving assembly 34 is fixed to the first mounting seat 31 to drive the plurality of guide plates 35 to move in the Z-direction. Specifically, when the transfer module includes two transfer rails, i.e., a transfer rail and a return rail, the number of the guide plates 35 is three to form two aisles corresponding to the positions of the transfer rail and the return rail, respectively, to match with sample rack loading when the transfer module transfers sample racks to be unloaded or returned, the structure is simple, and the aisles formed by two adjacent guide plates 35 have guiding function to realize accurate transfer of the sample racks between the transfer module and the clamping area of the clamping mechanism 20. The third Z-direction moving assembly 34 drives the plurality of guide plates 35 to move synchronously in the Z-direction, so that the plurality of guide plates 35 can be lowered to make the clamping mechanism 20 perform clamping work while playing a guiding role.

In one embodiment, the third Z-moving assembly 34 includes a third belt driving assembly 341, and a fifth guide rail 342 and a fifth slider that are matched with each other; the fifth guide rail 342 is disposed on the first mounting seat 31 and extends along the Z direction; the fifth slider is slidably coupled to a fifth rail 342. The stop mechanism 30 is provided with an adapter 36, and a plurality of guide plates 35 are arranged on the adapter 36; the adapter 36 is connected to the fifth slider and connected to the second timing belt of the third belt driving assembly 341 through a second timing belt clamping block.

Further, the stopping mechanism 30 further includes a third spring 37, one end of which is fixed to the first mounting seat 31, and the other end of which is fixed to the adapter 36, so as to prevent the motor of the third belt transmission assembly 341 from stopping working when power is off, and thus the plurality of guide plates 35 are abnormally lowered to collide with surrounding components.

In one embodiment, as shown in fig. 1, 7 and 11, the transfer mechanism 40 includes a second mounting base 44 fixed to the frame 10; the first X-direction moving assembly 41 and the first motor 42 are respectively fixed on the second mounting base 44;

the push rod 43 is U-shaped, and two ends of the push rod are respectively and rotatably connected to output shafts at two ends of the first motor 42; the push rod 43 rotates to frame or release the sample rack in the second receiving groove 62;

The first receiving groove 61 is fixed to a side of the second mounting base 44 facing away from the push rod 43. Specifically, the pushing rod 43 with a "U" shape rotates to frame the sample rack in the second accommodating groove 62, so that the first X-direction moving component 41 drives the sample rack to move along the X-direction, so as to transfer out of the second accommodating groove 62 for conveying to the detection module. The transfer mechanism 40 is simple and compact in structure, simple in electric control and easy to operate. In addition, the first accommodating groove 61 is disposed on the second mounting seat 44, which is beneficial to the compactness of each structure of the device body 100, and shortens the transfer path between the first accommodating groove 61 and the second accommodating groove 62, so as to facilitate the carrying by the carrying mechanism 80.

Further, the push rod 43 has two rotation stop positions, one is that the push rod 43 is in an inactive state, and the other is that the push rod 43 is in a position of framing the sample rack in the second accommodating groove 62, so as to simplify the electric control structure of the first motor 42. Further, the rotation angle of the push rod 43 is 90 degrees, and the push rod is simple and easy to control. The push-transfer mechanism 40 is provided with two third position sensors to respectively cooperate with the control of the two rotation stop positions of the push rod 43.

In one embodiment, the first X-direction moving component 41 is a moving motor.

In one embodiment, the refrigerator door of the refrigerator 50 is opened and closed by electronic control to match the in-put or out of the sample rack before and after the quality control. Specifically, the refrigerator 50 controls the opening and closing of the refrigerator door through a transmission system composed of a motor, a timing belt, and a guide rail.

In one embodiment, as shown in fig. 1, 9, 10, and 11, the handling mechanism 80 includes a third mount 86; the third mounting seat 86 is provided with a hollow cavity 861 and is connected to the first Y-direction moving component 85; the third accommodating groove 81 is arranged above the third mounting seat 86; one end of the second X-direction moving component 82 extends into the hollow cavity 861, and the other end extends out of the third mounting seat 86 toward the buffer mechanism 70. Specifically, the third mounting seat 86 is used for transferring the third accommodating groove 81 and the first Y-direction moving component 85, and meanwhile, the hollow cavity 861 provided therein can also be used for letting one end of the second X-direction moving component 82 extend in, so that the second X-direction moving component 82 is provided with an X-direction space of the working table of the stand 10, which is beneficial to the miniaturization design of the stand 10.

In one embodiment, the first Y-direction moving assembly 85 includes a fourth belt driving assembly 851 and a sixth guide 852 and a sixth slider matched with each other; the sixth guide 852 extends along the Y direction, and is fixed to the frame 10 and slidingly connected with the sixth slider; the sixth slider is respectively connected with the third belt clamping block and the third mounting seat 86 of the fourth belt transmission assembly 851, so that the fourth belt transmission assembly 851 drives the sixth slider to drive the third mounting seat 86 to move along the sixth guide rail 852. Further, the carrying mechanism 80 is provided with a mounting base 89, and the fourth belt drive assembly 851 and the sixth guide 852 are both provided on the mounting base 89. The mounting base 89 is used for integrally assembling various components of the handling mechanism 80, so that on one hand, the assembling difficulty of the handling mechanism 80 relative to the frame 10 is reduced, and on the other hand, the handling mechanism 80 is convenient to disassemble so as to facilitate maintenance or replacement of the handling mechanism 80.

Further, the second X-direction moving assembly 82 is fixed to the third mount 86 by a third mount plate 87. The second X-direction moving assembly 82 comprises a fifth belt transmission assembly 821 and a seventh guide rail 822 and a seventh slide block which are matched with each other; the fifth belt drive assembly 821 and the seventh rail 822 are mounted to the third mounting plate 87, respectively. The fifth belt driving assembly 821 drives the seventh slider to drive the first Z-moving assembly 83 to move in the X-direction, and further drives the hook 84 connected thereto to move in the X-direction.

Further, the first Z-direction moving component 83 includes a crank block structure and an eighth guide 831; the eighth guide rail 831 is fixed to the fourth mounting plate 88, and the fourth mounting plate 88 is fixed to the driving end of the second X-direction moving assembly 82. The hook claw 84 moves along the Z direction under the drive of the crank block structure.

In an embodiment, as shown in fig. 8 and 11, a fourth accommodating groove 63 is provided at an end of the buffer mechanism 70 away from the clamping mechanism 20 for loading, so as to perform manual loading when the transmission module is abnormally operated, so as to maintain the continuous detection operation of the analysis device.

In an embodiment, as shown in fig. 1, 8 and 11, the apparatus body 100 further includes a code scanner 90, where the code scanner 90 is disposed on a side of the fourth accommodating groove 63 facing away from the buffer groove 71, so as to scan the sample tube information on the sample rack located in the fourth accommodating groove 63.

In an embodiment, the clamping mechanism 20, the stopping mechanism 30, the transferring mechanism 40, and the transporting mechanism 80 are all provided with at least one position detecting component to realize precise operation control of each mechanism. Further, the position detection assembly comprises a matched position sensor and a baffle.

In one embodiment, the handling mechanism 80 is provided with a plurality of fourth position detecting components for cooperating with the handling mechanism 80 to stop at different positions in the Y direction to cooperate with the transportation of the sample rack at different positions in the Y direction.

In one embodiment, the handling mechanism 80 is provided with a plurality of fifth position detecting components for cooperating with the hook claw 84 to stop at different positions in the X direction.

In one embodiment, the fourth mounting plate 88 is provided with two sixth position sensing assemblies to sense the vertical position of the two ends of the pawl 84.

In one embodiment, the catch 84 and the sample rack are provided with a matching seventh position detection assembly to detect the presence of the sample rack when the catch 84 is in operation.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; those skilled in the art can smoothly practice the invention as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present invention are possible in light of the above teachings without departing from the scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.

Claims

1. A sample buffering apparatus, comprising:

a frame (10) for forming a support structure;

a clamping mechanism (20) for clamping a sample rack loaded with at least one sample tube;

a stop mechanism (30) for stopping the sample rack on the transport module at the area to be clamped;

a transfer mechanism (40) provided with a first X-direction moving assembly (41), a first motor (42), and a push rod (43);

a refrigerator (50) for refrigerating a sample rack loaded with sample tubes to be quality controlled;

a first accommodation groove (61) and a second accommodation groove (62) which are respectively arranged at two sides of the transfer mechanism (40); the second accommodating groove (62) is positioned between the transfer mechanism (40) and the refrigerator (50);

the buffer mechanism (70) is provided with a plurality of buffer grooves (71) which are sequentially arranged in parallel;

a carrying mechanism (80) provided with a third accommodation groove (81) for transferring the sample rack;

wherein the clamping mechanism (20) clamps the sample rack and then is placed in the first accommodating groove (61);

when in buffer storage, the carrying mechanism (80) carries the sample rack out of the first accommodating groove (61) and transfers the sample rack to the buffer storage groove (71) for buffer storage;

during detection, the carrying mechanism (80) transfers the sample rack subjected to detection to the second accommodating groove (62), the first motor (42) drives the push rod (43) to rotate to prop against the sample rack in the second accommodating groove (62), and the first X-direction moving assembly (41) drives the sample rack to be pushed out to a detection module;

During retesting, the second accommodating groove (62) receives the detected sample rack and transfers the sample rack to the buffer groove (71) through the conveying mechanism (80) for retesting.

2. The sample buffer device according to claim 1, wherein the bottoms of the first accommodating groove (61), the second accommodating groove (62), the third accommodating groove (81) and the buffer groove (71) are respectively provided with a through groove with one side open; the conveying mechanism (80) is provided with a second X-direction moving assembly (82), a first Z-direction moving assembly (83), a hook claw (84) and a first Y-direction moving assembly (85); wherein the first Y-direction moving component (85) is fixed on the frame (10); the second X-direction moving assembly (82) is respectively connected with the first Y-direction moving assembly (85) and the first Z-direction moving assembly (83);

the first Z-direction moving assembly (83) drives the hooking claw (84) to lift to extend into the corresponding through groove to hook the sample rack, so that the sample rack is transferred into or out of the third accommodating groove (81) under the driving of the second X-direction moving assembly (82); or, the first Z-direction moving component (83) drives the hook claw (84) to descend so that the hook claw (84) can move along the X direction under the corresponding through groove.

3. A sample buffer according to claim 1, wherein the clamping mechanism (20) comprises:

two clamping parts (21) for clamping or unclamping the sample rack;

a second Y-direction moving assembly (22) fixed on the frame (10) and used for driving the two clamping parts (21) to synchronously move along the Y direction;

a rotating member (23) connected to the second Y-direction moving assembly (22) for forming a rotational driving force;

two first bearings (24); one end of each of the two first bearings (24) is fixed on the rotating end face of the rotating piece, and the other end of each of the two first bearings is propped against the inner side of one clamping part (21);

the first guide rail (251) and two first sliding blocks (252), wherein the first guide rail (251) extends along the Y direction and is connected with the second Y-direction moving assembly (22); the two first sliding blocks (252) are respectively connected to the two clamping parts (21);

the rotating piece (23) rotates to drive the two first bearings (24) to rotate, so that the two first sliding blocks (252) move reversely or oppositely along the first guide rail (251) to open and close the two clamping parts (21).

4. A sample buffer according to claim 3, wherein the clamping mechanism (20) further comprises a first mounting plate (261), a second mounting plate (262); the first mounting plate (261) is connected to the frame (10);

The second Y-direction moving assembly (22) is fixed on the first mounting plate (261) and comprises a first belt transmission assembly, a second matched guide rail (221) and a second sliding block (222);

the second mounting plate (262) is respectively connected with the second sliding block (222) and the first belt clamping block of the first belt transmission assembly; the rotating member (23) is fixed to the second mounting plate (262).

5. A sample buffer according to claim 3 or 4, wherein the rotating member (23) comprises a second belt transmission assembly, the bottom wall of the driven wheel (231) is respectively connected with two first bearings (24), and the two first bearings (24) are respectively positioned at two sides of the rotating shaft of the driven wheel (231);

the clamping mechanism (20) further comprises a second Z-direction driving assembly (27) which comprises two second bearings (271), a cam (272), a first spring (273), two second springs (274), two connecting plates (275) and two third guide rails (276); one said connecting plate (275) is connected to one said third guide rail (276), one said first slide block (252) respectively; -a said clamping portion (21) is slidingly connected to a said third rail (276); the second bearings (271) are respectively fixed on the inner sides of the clamping parts (21), and two ends of the first springs (273) are respectively connected with the two connecting plates (275); the cam (272) is coaxially connected with the output shaft of the rotating piece (23), and the upper surface or the lower surface of the cam is a special-shaped surface (2721); the two second bearings (271) are oppositely arranged and respectively pressed against the special-shaped surfaces (2721); two ends of the second spring (274) are respectively connected with the outer ends of the clamping part (21) and the second bearing (271) which are matched.

6. A sample buffer according to claim 1, wherein the stop mechanism (30) comprises a first mount (31), a third Y-direction movement assembly (32), a stop rod (33); the first mounting seat (31) is fixed on the frame (10);

the third Y-direction moving assembly (32) is mounted on the first mounting seat (31) and used for driving the stop rod (33) to move along the Y direction so as to correspond to the position of the sample rack conveyed along the X direction on the conveying module, so as to stop the sample rack.

7. A sample buffer according to claim 6, wherein the stop mechanism (30) comprises a third Z-moving assembly (34), a number of guide plates (35);

the guide plates (35) are sequentially arranged in parallel; two adjacent guide plates (35) form a passageway so as to correspond to different transmission track positions of the transmission module; the third Z-direction moving assembly (34) is fixed on the first mounting seat (31) so as to drive the guide plates (35) to synchronously move in the Z direction.

8. A sample buffer according to claim 1, wherein the transfer mechanism (40) comprises a second mount (44) secured to the frame (10); the first X-direction moving assembly (41) and the first motor (42) are respectively fixed on the second mounting seat (44);

The push rod (43) is U-shaped, and two ends of the push rod are respectively connected with output shafts at two ends of the first motor (42) in a rotating way; the push rod (43) rotates to frame or loosen the sample rack in the second accommodating groove (62);

the first accommodating groove (61) is fixed on one side of the second mounting seat (44) away from the push rod (43).

9. A sample buffer according to claim 2, wherein the handling mechanism (80) comprises a third mount (86); the third mounting seat (86) is provided with a hollow cavity (861) and is connected with the first Y-direction moving assembly (85); the third accommodating groove (81) is arranged above the third mounting seat (86); one end of the second X-direction moving component (82) extends into the hollow cavity (861), and the other end extends out of the third mounting seat (86) towards the buffer mechanism (70).

10. A sample buffer according to claim 1, wherein a fourth receiving groove (63) is provided at an end of the buffer mechanism (70) remote from the holding mechanism (20) for loading samples;

the code scanner (90) is arranged at one side of the fourth accommodating groove (63) opposite to the cache groove (71);

the clamping mechanism (20), the stop mechanism (30), the transfer mechanism (40) and the carrying mechanism (80) are all provided with at least one position detection component.