Sample rack conveying device and analyzer

Abstract

The embodiment of the utility model discloses a sample frame conveying device and an analyzer. The sample frame conveying device comprises a frame body, a conveying assembly and a plurality of limiting structures. The conveying assembly is arranged on the frame body, the conveying assembly comprises a driving part and a transmission structure, the driving part can provide transmission force for the transmission structure, and the driving part can drive the transmission structure to rotate in the preset direction. The multiple limiting structures are arranged on the transmission structure at equal intervals, a sample frame is placed between every two adjacent limiting structures, and the distance between the two opposite end faces of each limiting structure in the preset direction is equal to the size of a sample position on the sample frame in the preset direction. By arranging the limiting structures, the two adjacent sample frames are spaced by a sample position, so that the conveying belt can move according to a fixed operation mode, and the sampling precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of analyzers, in particular to a sample rack conveying device and an analyzer. Background Art

[0002] In some detectors, such as analyzers, a sample rack conveyor is usually provided, and the sample rack can be transported by the sample rack conveyor to facilitate the sampling of the sample on the analyzer for the test tube on the sample rack. Usually, the conveyor will convey two or more sample racks for sampling. When sampling a sample on a sample rack, the distance of each driven movement of the sample rack is the distance of a sample position, which can be conducive to regular sampling of the test tubes on the same sample rack one by one.

[0003] After sampling the sample on one sample rack, it is necessary to transfer another adjacent sample rack for sampling. Because there is a distance between two adjacent sample racks, the conveying method of the sample rack by the conveying device in the related art also needs to consider eliminating the influence of the distance to ensure accurate sampling of the other sample rack. This will make the conveying method of the conveying device more complicated, and sampling errors may still occur if you are not careful. Utility Model Content

[0004] Based on this, it is necessary to propose a sample rack conveying device and an analyzer that can ensure accurate sampling in response to the above problems.

[0005] The present invention provides a sample rack conveying device, comprising:

[0006] Frame;

[0007] A transmission assembly is arranged on the frame, and the transmission assembly includes a driving member and a transmission structure, wherein the driving member can provide a transmission force for the transmission structure, and the driving member can drive the transmission structure to rotate in a predetermined direction;

[0008] And a plurality of limiting structures, the plurality of limiting structures are arranged at equal intervals on the transmission structure, a sample rack is placed between two adjacent limiting structures, and the spacing between the two end surfaces of the limiting structure facing each other in the predetermined direction is equal to the size of the sample position on the sample rack in the predetermined direction.

[0009] In some embodiments, the transmission structure includes a conveyor belt, the driving member can drive the conveyor belt to rotate in the predetermined direction, the limiting structure is arranged on the conveyor belt, and the limiting structure includes two sub-parts arranged along the predetermined direction, and the two sub-parts are spaced apart or connected together by a flexible member.

[0010] In some embodiments, the two sub-sections are spaced apart, a fixing portion for connecting the sub-sections is protruded from the position corresponding to each sub-section on the conveyor belt, a convex portion is protruded from the opposite end of the two adjacent sub-sections, and the convex portions between the two sub-sections are staggered.

[0011] In some embodiments, the two sub-parts are baffles, the baffles are fixed on the conveyor belt, the two baffles are spaced apart, and a flexible diaphragm is connected between the two baffles.

[0012] In some embodiments, the transmission structure includes a first transmission wheel and a second transmission wheel spaced apart on the frame, the first transmission wheel and the second transmission wheel are rotatably arranged, the first transmission wheel and the second transmission wheel are connected by a conveyor belt, and the output end of the driving member is directly or indirectly connected to the second transmission wheel.

[0013] In some embodiments, the transmission structure also includes a third transmission wheel coaxially rotatable with the second transmission member, the driving member is a driving motor, a driving wheel is connected to the output shaft of the driving motor, and a transmission belt is connected between the driving wheel and the third transmission wheel.

[0014] In some embodiments, a plurality of first pads and a plurality of second pads are also provided on the frame, the plurality of first pads are arranged on one side of the transmission structure along the transmission path of the transmission structure, the plurality of second pads are arranged on the other side of the transmission structure along the transmission path of the transmission structure, and the height of the first pads is greater than the height of the conveying surface of the conveyor belt.

[0015] In some embodiments, a distance between an end surface of the first cushion block facing away from the frame and the frame is greater than a distance between an end surface of the second cushion block facing away from the frame and the frame.

[0016] In some embodiments, a tensioning member is further provided on the frame, and an end of the tensioning member is overlapped on the conveyor belt, so that an angle is formed at the overlapped position of the conveyor belt.

[0017] An embodiment of the utility model also provides an analyzer, including a main body, which has a sampling position, a loading position and an unloading position, and also includes the sample conveying device as described above, the sample rack can be placed between the two limiting structures at the loading position, the conveying component can transport the sample rack to the sampling position, and the sample rack after the sample is completed can be transported to the unloading position by the conveying component for unloading.

[0018] The following beneficial effects are achieved by using the embodiments of the present invention:

[0019] According to the sample conveying device and analyzer in the above-mentioned embodiment, by setting a limiting structure, a sample rack can be placed between two adjacent limiting structures. In this way, not only can the position of the sample rack be limited by the limiting structure, but the sample rack can also be moved forward by the abutment of the limiting structure to achieve stable transportation of the sample rack. In addition, the spacing between the two end faces of each limiting structure in the conveying direction of the sample rack is equal to the size of each sample position on the sample rack in the conveying direction. In this way, the spacing of one sample position is spaced between two adjacent sample racks. After the sample collection on one sample rack is completed, the transmission structure can still move forward one sample position at a time during the process of conveying another adjacent sample rack. Compared with the uncertain spacing between two adjacent sample racks in the related art, this can undoubtedly simplify the movement mode of the conveyor belt to transport the sample rack, so that the conveyor belt can move in a fixed operation mode, avoiding the phenomenon of inaccurate sampling results caused by changes in the operation mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] in:

[0022] Figure 1 A schematic structural diagram of a sample conveying device provided according to the utility model is shown;

[0023] Figure 2 Another structural schematic diagram of the sample conveying device provided by the utility model is shown;

[0024] Figure 3 A structural schematic diagram showing a partial structure of a sample conveying device provided by the utility model;

[0025] Figure 4 Another structural schematic diagram showing a partial structure of the sample conveying device provided by the utility model.

[0026] Description of main component symbols:

[0027] 1. Frame; 11. First cushion block; 12. Second cushion block; 13. Unloading support plate; 14. Loading support plate; 15. Tensioner; 2. Transmission assembly; 21. Driving member; 211. Driving wheel; 22. Conveyor belt; 221. Fixing member; 23. Transmission structure; 231. First transmission wheel; 232. Second transmission wheel; 233. Third transmission wheel; 234. Transmission belt; 3. Limiting structure; 31. Sub-part; 311. Protrusion; 32. Baffle; 33. Diaphragm. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] On the one hand, the utility model provides a sample rack conveying device, which is used in detection instruments such as analyzers and can be used to transport the sample rack to the sampling position in the instrument to facilitate the sample suction structure inside the instrument to sample the sample in the test tube on the sample rack.

[0032] In one embodiment, see Figure 1 and Figure 2 The sample rack conveying device includes a frame 1, a conveying assembly 2 and a plurality of limiting structures 3. The frame 1 is the overall frame of the conveying device, and the components of the conveying device are installed on the frame 1. The frame 1 also plays a supporting role.

[0033] The transmission assembly 2 is disposed on the frame 1, and the transmission assembly 2 includes a driving member 21 and a transmission structure 23. The driving member 21 can provide a transmission force for the transmission structure 23 to drive the transmission structure 23 to rotate so as to transport the sample rack in a predetermined direction. Therefore, the predetermined direction can also be regarded as the transmission direction of the sample rack. It should be noted that the predetermined direction in which the transmission structure 23 transports the sample rack is not limited and needs to be determined according to actual conditions.

[0034] A plurality of limiting structures 3 are arranged on the transmission structure 23 at equal intervals along the conveying direction of the sample rack, and a placement position is formed between two adjacent limiting structures 3. The size of the placement position is adapted to the length of the sample rack. The placement position is used to place the sample rack. When the sample rack is placed in the placement position and the transmission structure 23 rotates, it can move against the sample rack through the abutment action of the limiting structure 3.

[0035] The distance between the two end surfaces of the limiting structure 3 facing each other in the conveying direction of the sample rack is equal to the size of the sample position on the sample rack in the running direction of the conveyor belt 22 .

[0036] In this embodiment, one limiting structure 3 is preferably provided between two adjacent sample racks, and in other embodiments, multiple limiting structures 3 may be provided between two adjacent sample racks. That is, in this embodiment, one sample position is spaced between two adjacent sample racks, and in other embodiments, an integral multiple (greater than 1) of a sample position may be spaced between two adjacent sample racks.

[0037] It should be noted that the sample position is a position on the sample rack for storing reagent tubes. In order to facilitate sampling, the sample rack is generally divided into multiple completely identical sample positions, so that when sampling is performed using a sampling tube, the distance the sample rack moves forward each time can be set to be consistent, which is beneficial to sampling accuracy. The size of the sample position in the running direction of the conveyor belt 22 described in this application is the size required to drive the sample rack forward after sampling a sample in a test tube. The sample rack generally moves from the loading position toward the sampling position.

[0038] From the above, it can be seen that by setting the limiting structure 3, the sample rack can be placed between two adjacent limiting structures 3. In this way, not only can the position of the sample rack be limited by the limiting structure 3, but the abutment effect of the limiting structure 3 can also push the sample rack forward, thereby realizing stable transportation of the sample rack.

[0039] In addition, the spacing between the two end faces of each limiting structure 3 in the sample rack conveying direction is equal to the size of each sample position on the sample rack in the conveying direction, so that the spacing between two adjacent sample racks is one sample position. After the sample collection on one sample rack is completed, the transmission structure 23 can still move forward one sample position at a time during the process of conveying another adjacent sample rack. Compared with the uncertain spacing between two adjacent sample racks in the related art, this can undoubtedly simplify the movement mode of the conveyor belt 22 for transporting the sample rack, so that the conveyor belt 22 can move in a fixed operation mode, avoiding the phenomenon of inaccurate sampling results caused by changes in the operation mode.

[0040] In one embodiment, the transmission structure 23 is connected to a conveyor belt 22, and the driving member 21 can drive the conveyor belt 22 to rotate in a predetermined direction. The conveyor belt 22 has a conveying surface, and the limiting structure 3 is arranged on the conveying surface, which is also the end surface facing the sample rack.

[0041] The limiting structure 3 includes two sub-parts 31 arranged along the conveying track of the conveyor belt 22 , and the two sub-parts 31 are spaced apart or connected together by a flexible member.

[0042] Taking into account that the limiting structure 3 will move to the corner when following the movement of the conveyor belt 22, the larger the size of the limiting structure 3 along the running direction of the conveyor belt 22, the larger its rotation radius. Therefore, by setting the limiting structure 3 as two separate sub-parts 31 connected by flexible parts, the rotation radius of the limiting structure 3 can be reduced, so that it can smoothly pass through the corner during the movement of the conveyor belt 22.

[0043] In a specific embodiment, please refer to Figures 1 to 4 , the two sub-sections 31 are block structures, and the two sub-sections 31 are spaced apart along the path of the conveyor belt 22, and a fixing piece 221 for connecting the sub-sections 31 is convexly provided at the position corresponding to each sub-section 31 on the conveyor belt 22. A convex portion 311 is convexly provided at the opposite end between two adjacent sub-sections 31, and the convex portions 311 between the two sub-sections 31 are staggered. By arranging the two sub-sections 31 at intervals, when the limiting structure 3 moves to a corner with the conveyor belt 22, the rotation radius of the limiting structure 3 is reduced, which does not affect its movement with the conveyor belt 22. By arranging staggered convex portions 311 on the two sub-sections 31, the positions of the two sub-sections 31 can also be located, ensuring that the positions of the two sub-sections 31 on the same limiting structure 3 are arranged opposite to each other.

[0044] In another embodiment, the two sub-parts 31 are baffle 32 structures, and a fixing member 221 for connecting the sub-parts 31 is protrudingly provided at a position corresponding to each sub-part 31 on the conveyor belt 22, and the two baffles 32 of the same limiting structure 3 are fixed to the conveyor belt 22 through the fixing member 221. Alternatively, the baffle 32 is fixedly connected to or integrally formed on the conveyor belt 22.

[0045] The two baffles 32 are spaced apart along the path of the conveyor belt 22, and a flexible diaphragm 33 is connected between the two baffles 32, which can block light. The diaphragm 33 and the two baffles 32 can be integrally formed or detachably connected. By connecting the diaphragm 33 between the two baffles 32, it is possible to prevent the distance between the two baffles 32 from becoming larger, and to ensure that the rotation radius of the limiting structure 3 meets the passing requirements when the conveyor belt 22 runs to a corner.

[0046] In one embodiment, see Figures 1 to 4 The transmission structure 23 includes a first transmission wheel 231 and a second transmission wheel 232 which are spaced apart on the frame 1. The first transmission wheel 231 and the second transmission wheel 232 are both rotatably connected to the frame 1, and the rotation axes of the two transmission wheels are parallel. The conveyor belt 22 is connected between the first transmission wheel 231 and the second transmission wheel 232, and the output end of the driving member 21 is directly or indirectly connected to the second transmission wheel 232. The driving member 21 can drive the second transmission wheel 232 to rotate, and then can drive the conveyor belt 22 to rotate. The contact point between the conveyor belt 22 and the first transmission wheel 231 and the second transmission wheel 232 is the corner.

[0047] In a specific embodiment, the transmission structure 23 further includes a third transmission wheel 233 coaxially rotatably arranged with the second transmission wheel 232, the driving member 21 is a driving motor, the output shaft of the driving motor is connected with a driving wheel 211, the rotating shaft of the driving wheel 211 is parallel to the rotating shaft of the third transmission wheel 233, and a transmission belt 234 is connected between the driving wheel 211 and the third transmission wheel 233. By setting the third transmission wheel 233 and the driving wheel 211, the third transmission wheel 233 and the driving wheel 211 are connected by the transmission belt 234, and the driving force of the driving member 21 is transmitted through the transmission belt 234, the driving wheel 211 and the third transmission wheel 233, so that the output shaft of the driving member 21 can be prevented from being coaxially arranged with the rotating shaft of the second transmission wheel 232, so as to reduce the size perpendicular to the running direction of the conveyor belt 22 and reduce the volume of the conveying device.

[0048] In one embodiment, see Figures 1 to 4, the frame 1 is also provided with a plurality of first cushion blocks 11 and a plurality of second cushion blocks 12, the plurality of first cushion blocks 11 are arranged on one side of the conveyor belt 22 along the path of the conveyor belt 22, and the plurality of second cushion blocks 12 are arranged on the other side of the conveyor belt 22 along the path of the conveyor belt 22, and the height of the first cushion blocks 11 is greater than the height of the conveying surface of the conveyor belt 22, and less than the height of the limiting structure 3. It should be noted that the height here is relative to the frame 1, that is, the distance in the direction between the end surface of the cushion block facing away from the frame 1 and the surface of the frame 1.

[0049] The plurality of first pads 11 arranged in a straight line and the plurality of second pads 12 arranged in a straight line can sandwich the conveyor belt 22. By providing the first pads 11 and the second pads 12, the sample rack can be directly placed on the first pads 11 and the second pads 12, so that the sample rack does not need to directly abut on the conveyor belt 22, so as to avoid bending and deformation of the conveyor belt 22 due to the low pressure conveyor belt 22, which is conducive to ensuring that the conveyor belt 22 is not damaged.

[0050] It should also be noted that the height of the first pad 11 needs to be greater than the height of the second pad 12, that is, the dimension of the end face of the first pad 11 facing away from the frame 1 is greater than the dimension of the end face of the second pad 12 facing away from the frame 1. In practical applications, the second pad 12 is relatively close to the upper area of ​​the sample rack, and the sample rack often has a structure similar to a slide, and when the sample rack is placed between two limiting structures 3, the position of the slide corresponds to the position of the second pad 12. Because the slide also has a certain height, in order to ensure that the height of the second pad 12 plus the height of the slide is equal to the height of the first pad 11, the height of the second pad 12 needs to be set lower than the height of the first pad 11.

[0051] In one embodiment, see Figures 1 to 4 , a loading support plate 14 and an unloading support plate 13 are arranged at intervals on the rack body 1 along the moving direction of the sample rack. When the sample rack is loaded between the two limiting structures 3, it can be supported on the loading support plate 14, and when the sample rack is moved to the unloading position after sampling, it can be supported on the unloading support plate 13. By providing the loading support plate 14 and the unloading support plate 13, the position of the sample rack can be limited, so that during the transportation of the sample rack, the sample tubes on it can pass through the sampling position of the sampling needle.

[0052] In one embodiment, a tensioning member 15 is further provided on the frame 1, and the end of the tensioning member 15 can overlap on the conveyor belt 22, so that the overlapped position of the conveyor belt 22 forms an angle. Preferably, the end of the tensioning member 15 is overlapped on the end surface of the conveyor belt 22 facing away from the conveying surface.

[0053] On the other hand, the utility model also provides an analyzer, including a main body, the main body having a sampling position, a loading position and an unloading position, and is characterized in that it also includes the above-mentioned sample conveying device, the sample rack can be placed between two limiting structures at the loading position, the conveying component can transport the sample rack to the sampling position, and the sample rack after the sample is completed can be transported to the unloading position by the conveying component for unloading.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A sample rack conveying device, characterized in that: include: Frame; A transmission assembly is arranged on the frame, and the transmission assembly includes a driving member and a transmission structure, wherein the driving member can provide a transmission force for the transmission structure, and the driving member can drive the transmission structure to rotate in a predetermined direction; And a plurality of limiting structures, the plurality of limiting structures are arranged at equal intervals on the transmission structure, a sample rack is placed between two adjacent limiting structures, and the spacing between the two end surfaces of the limiting structure facing each other in the predetermined direction is equal to the size of the sample position on the sample rack in the predetermined direction.

2. The sample rack conveying device according to claim 1, characterized in that: The transmission structure includes a conveyor belt, the driving member can drive the conveyor belt to rotate in the predetermined direction, the limiting structure is arranged on the conveyor belt, and the limiting structure includes two sub-parts arranged along the predetermined direction, and the two sub-parts are arranged at intervals or connected together by a flexible member.

3. The sample rack conveying device according to claim 2, characterized in that: The two sub-parts are arranged at intervals, and a fixing part for connecting the sub-parts is protruded at the position corresponding to each sub-part on the conveyor belt, and a convex part is protruded at the opposite end of the two adjacent sub-parts, and the convex parts between the two sub-parts are staggered.

4. The sample rack conveying device according to claim 2, characterized in that: The two sub-parts are baffles, which are fixed on the conveyor belt. The two baffles are spaced apart, and a flexible diaphragm is connected between the two baffles.

5. The sample rack conveying device according to claim 1 or 2, characterized in that: The transmission structure includes a first transmission wheel and a second transmission wheel spaced apart on the frame, the first transmission wheel and the second transmission wheel are rotatably arranged, the first transmission wheel and the second transmission wheel are connected by a transmission belt, and the output end of the driving member is directly or indirectly connected to the second transmission wheel.

6. The sample rack conveying device according to claim 5, characterized in that: The transmission structure also includes a third transmission wheel coaxially rotatably arranged with the second transmission wheel. The driving member is a driving motor. A driving wheel is connected to the output shaft of the driving motor. A transmission belt is connected between the driving wheel and the third transmission wheel.

7. The sample rack conveying device according to claim 2, characterized in that: The frame is also provided with a plurality of first pads and a plurality of second pads, wherein the plurality of first pads are arranged on one side of the transmission structure along the transmission path of the transmission structure, and the plurality of second pads are arranged on the other side of the transmission structure along the transmission path of the transmission structure, and the height of the first pads is greater than the height of the transmission surface of the conveyor belt.

8. The sample rack conveying device according to claim 7, characterized in that: The distance between the end surface of the first cushion block facing away from the frame and the frame is greater than the distance between the end surface of the second cushion block facing away from the frame and the frame.

9. The sample rack conveying device according to claim 2, characterized in that: The frame is also provided with a tensioning member, and the end of the tensioning member is overlapped on the conveyor belt, so that an angle is formed at the overlapped position of the conveyor belt.

10. An analyzer, comprising a main body, the main body having a sampling position, a loading position and an unloading position, characterized in that: It also includes a sample rack conveying device as described in any one of claims 1 to 9, the sample rack can be placed between the two limiting structures at the loading position, the conveying component can transport the sample rack to the sampling position, and the sample rack after the sample is completed can be transported to the unloading position for unloading by the conveying component.

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