CN109342753B - Sample transfer apparatus - Google Patents
Sample transfer apparatus Download PDFInfo
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- CN109342753B CN109342753B CN201811128597.2A CN201811128597A CN109342753B CN 109342753 B CN109342753 B CN 109342753B CN 201811128597 A CN201811128597 A CN 201811128597A CN 109342753 B CN109342753 B CN 109342753B
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- 238000012546 transfer Methods 0.000 title claims description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 232
- 238000012360 testing method Methods 0.000 claims abstract description 182
- 238000003756 stirring Methods 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 description 8
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/026—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations having blocks or racks of reaction cells or cuvettes
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- Chemical Kinetics & Catalysis (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
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Abstract
The invention provides a sample conveying device which comprises a sample rack, a test tube rack, a driving mechanism, a locking mechanism and a limiting mechanism. The driving mechanism slides between the starting position and the working position of the test tube rack, the locking mechanism is arranged between the test tube rack and the driving mechanism, the pressing force of the driven mechanism is applied to the test tube rack and the driving mechanism can be switched between locking and unlocking states through the locking mechanism, the limiting mechanism and the driving mechanism are in linkage arrangement, when the driving mechanism applies the pressing force to lock or unlock the test tube rack, the test tube rack is limited at the starting position on the sample rack through the limiting mechanism, the locking mechanism can lock or unlock the test tube rack at the starting position of the test tube rack, the test tube rack can be taken out to the working position after being locked from the starting position, and the test tube rack after taking test tubes at the working position can be returned to the starting position of the test tube rack to unlock, so that the conveying efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a sample conveying device.
Background
In order to meet the requirements of automated analysis, sample transfer devices are widely used in precision instruments such as biochemical analyzers, chemiluminescent instruments, urine instruments, nucleic acids, and laboratory flow line analysis systems.
Conventional sample transfer apparatus remove samples from the sample transfer apparatus and move the samples to an analysis position by a transfer mechanism, for example, the conventional sample transfer apparatus includes a longitudinal sample feeding mechanism, a transverse grid feeding mechanism, and a push-out mechanism. The longitudinal sample feeding mechanism drives the test tube rack to longitudinally slide, then the test tube rack is conveyed to the transverse grid feeding mechanism, and under the action of the transverse grid feeding mechanism, the test tube rack transversely slides to the grid feeding station, so that the sample feeding process of the test tube rack is completed. Wherein, transversely advance check mechanism includes transverse guide, the movable plate of establishing on transverse guide by the drive of motor slidable, is equipped with the couple on the movable plate, and the test tube erects on the movable plate, at the in-process of introducing a sample, the bottom of movable plate is hooked to the bending part of couple to make movable plate and test-tube rack do synchronous motion towards the station direction on transverse guide, carry the test-tube rack to station department, later the movable plate is kept away from the station towards when sliding, couple and test-tube rack break away from, the test-tube rack just keeps in station department.
However, the sample conveying device can only convey the test tube rack from the initial storage position to the station, but cannot automatically return the test tube rack after taking the test tube at the station to the initial storage position of the test tube rack, and still needs to manually return the test tube rack from the station to the initial storage position of the test tube rack, so that the phenomenon of misplacement of the test tube rack is easy to occur, and the conveying efficiency is affected.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the existing sample conveying device cannot automatically return the test tube rack after the test tubes are taken at the working position to the initial position for storing the test tube rack, so that the conveying efficiency is affected.
To this end, the invention provides a sample transfer apparatus comprising
A sample rack;
At least one test tube rack initially arranged on the sample rack;
The driving mechanism is arranged in a sliding manner between the starting position and the working position of the test tube rack relative to the sample rack;
the locking mechanism is arranged between the test tube rack and the driving mechanism, and the initial position is pressed by the driving mechanism to enable the test tube rack and the driving mechanism to be switched between a locked state and a separated unlocked state;
and the limiting mechanism is rotatably arranged on the sample rack, and when or before the driving mechanism applies the pressing force to the locking mechanism, the driving mechanism and the limiting mechanism establish a linkage relationship and stir the limiting mechanism to rotate so that the limiting mechanism limits the sample rack on the sample rack.
Preferably, the above sample transfer apparatus, the limit mechanism comprises
The limiting groove is arranged on the test tube rack;
The first end of the limiting piece stretches into a motion path of the test tube rack sliding towards one side of the driving mechanism, and the second end of the limiting piece is used as a free end;
Under the stirring of the driving mechanism, the second end is embedded and kept in the limiting groove, and the first end moves away from the moving path of the test tube rack sliding towards one side of the driving mechanism.
Preferably, in the sample conveying device, at least one first through groove with an upward notch and a first opening facing to one side of the driving mechanism is formed in the top of the sample rack; the test tube rack is placed in the first through groove; the limiting piece is hinged to the bottom of the first through groove;
In the locking state, the driving mechanism drives the test tube rack to slide out of or slide into the first through groove through the first notch.
Preferably, in the sample conveying device, first guide grooves extending along the sliding direction of the first guide grooves are formed in two side walls of the test tube rack;
Guide protrusions suitable for being embedded into the first guide grooves are respectively arranged on the two inner side walls of the first through grooves;
The test tube rack is equipped with towards the bottom of the one end of actuating mechanism with spacing groove sunken direction the same step, the step face of step set up downwards and with form spacing arch between the spacing groove, the top surface of the first end of locating part is in the step face is on the slip path in first logical inslot and be suitable for closely butt on the step face.
Preferably, in the sample conveying device, a second opening is formed at the bottom of the first through groove; the limiting groove is arranged on the bottom surface of the test tube rack and is communicated with the second notch;
The top of the limiting piece is hinged to the second opening, and the bottom of the limiting piece is used as the free end to be embedded into the limiting groove through the second opening.
Preferably, in the sample conveying device, a yielding chute which is communicated with the limit groove and extends along the sliding direction of the driving mechanism on the sample rack is further arranged at the bottom of the test tube rack, and the notch of the yielding chute faces downwards;
in the locking state, the yielding chute is used for avoiding the limiting piece embedded in the limiting groove when sliding along with the driving mechanism.
Further preferably, in the sample conveying device, the limiting member includes a body hinged to the sample rack, and a hook formed on the body, and the hook is used as the free end.
Preferably, the above sample transfer apparatus, the driving mechanism includes a first sliding mechanism and a second sliding mechanism intersecting sliding directions, the first sliding mechanism being fixed to the second sliding mechanism, wherein the first sliding mechanism includes
A first driver;
A first slider that slides by being driven by the driver;
The push rod is fixed on the first sliding piece and faces one side of the limiting piece, and the driving mechanism applies the poking force to the free end through the push rod.
Preferably, in the sample conveying device, the longitudinal section of the push rod is formed into an L shape, a vertical part of the L shape is fixed on the first sliding part, and the horizontal part is used for stirring the limiting part and is abutted on the bottom of the limiting part.
Preferably, the sample transfer apparatus includes a second slide mechanism including
A second driver;
the second guide rail is positioned outside the sample rack and extends from the starting position to the working position;
a second slider slidably disposed on the second rail driven by the second driver;
The first sliding mechanism is fixed on the second sliding piece.
Preferably, in the sample transfer apparatus, the driving mechanism further includes a carrier fixed on the second sliding member, and a second through slot extending along a sliding direction of the first sliding mechanism is provided at a top of the carrier;
The push rod is located in the second through groove, and in the locking state, the first sliding mechanism drives the test tube rack to slide into the second through groove from the sample rack.
Preferably, the sample conveying device further comprises a reset mechanism arranged on the sample rack and used for limiting the test tube rack at the initial position, and the reset force applied by the reset mechanism to the test tube rack is smaller than the driving force applied by the driving mechanism to the test tube rack in the locking state.
Preferably, the sample transfer apparatus includes
A first magnet fixed to the sample holder;
The second magnet is fixed on the test tube rack and opposite to the first magnet, and the polarities of the surfaces of the first magnet and the second magnet, which face each other, are opposite.
Preferably, in the sample conveying device, the locking mechanism is a self-locking switch; the self-locking switch comprises
The self-locking plug is fixed on the test tube rack;
the self-locking socket is fixed on the surface of the driving mechanism, which is positioned on one side of the push rod facing the sample rack, and the self-locking plug can be axially inserted into or pulled out from the self-locking socket.
The technical scheme of the invention has the following advantages:
1. the invention provides a sample conveying device which comprises a sample rack, a test tube rack, a driving mechanism, a locking mechanism and a limiting mechanism. The test tube rack comprises a sample rack, at least one test tube rack, a driving mechanism and a control mechanism, wherein the at least one test tube rack is initially arranged on the sample rack, and the driving mechanism is arranged in a sliding manner between an initial position and a working position of the test tube rack relative to the sample rack; the locking mechanism is arranged between the test tube rack and the driving mechanism, and the initial position is pressed by the driving mechanism to enable the test tube rack and the driving mechanism to be switched between a locked state and a separated unlocked state; the limiting mechanism is rotatably arranged on the sample rack, and when or before the driving mechanism applies the pressing force to the locking mechanism, the driving mechanism and the limiting mechanism establish a linkage relationship and stir the limiting mechanism to rotate, so that the limiting mechanism limits the sample rack on the sample rack.
The sample conveyer of this structure, actuating mechanism slides between the home position and the operating position of test-tube rack, latch mechanism sets up between test-tube rack and actuating mechanism, receive actuating mechanism's pressing force, test-tube rack and actuating mechanism can switch between locking and unlocking state through latch mechanism, stop gear and actuating mechanism linkage set up, actuating mechanism is exerted pressing force locking or when unblock test-tube rack to latch mechanism, the home position on the sample rack is limited to the test-tube rack through stop mechanism, latch mechanism can lock or unblock the test-tube rack at the home position of test-tube rack, not only can take out to operating position after locking the test-tube rack from the home position, but also can return the test-tube rack after taking test tube with operating position department to the home position unblock of test-tube rack, improve conveying efficiency.
2. The invention provides a sample conveying device, wherein a limiting mechanism comprises a limiting groove arranged on a test tube rack; the limiting piece is hinged to the sample rack, a first end of the limiting piece stretches into a movement path of the test tube rack, which slides towards one side of the driving mechanism, and a second end of the limiting piece is used as a free end; under the stirring of the driving mechanism, the second end is embedded and kept in the limiting groove, and the first end moves away from the moving path of the test tube rack sliding towards one side of the driving mechanism. The limiting piece is hinged to the sample frame and can rotate around the hinge shaft on the sample frame, the other end of the limiting piece serves as a free end, and the limiting piece can be inserted into the limiting groove by being stirred by the driving mechanism to fix the test tube rack at a set position.
3. According to the sample conveying device provided by the invention, the top of the sample rack is provided with at least one first through groove with an upward notch and a first opening facing one side of the driving mechanism; the test tube rack is placed in the first through groove; the limiting piece is hinged to the bottom of the first through groove; in the locking state, the driving mechanism drives the test tube rack to slide out of or slide into the first through groove through the first notch. The first through groove is formed in the sample rack, the limiting piece is hinged to the bottom of the groove, a test tube rack placed in the sample rack is convenient to fix, and the driving mechanism can drive the test tube rack to slide in or slide out of the first through groove.
4. According to the sample conveying device provided by the invention, the two side walls of the test tube rack are provided with the first guide grooves extending along the sliding direction of the test tube rack in the first through grooves; guide protrusions suitable for being embedded into the first guide grooves are respectively arranged on the two inner side walls of the first through grooves; the test tube rack is equipped with towards the bottom of the one end of actuating mechanism with spacing groove sunken direction the same step, the step face of step set up downwards and with form spacing arch between the spacing groove, the top surface of the first end of locating part is in the step face is on the slip path in first logical inslot and be suitable for closely butt on the step face. Set up first guide way and direction protruding matched with guiding mechanism on the direction of movement of test-tube rack for the test-tube rack only can slide in the horizontal direction in first logical inslot, after the test-tube rack was put into to the people, the right angle portion that forms between test-tube rack bottom step face and the spacing arch can be in the same place with the first end butt of locating part, and the restriction test-tube rack passes through.
5. According to the sample conveying device provided by the invention, the bottom of the first through groove is provided with the second opening; the limiting groove is arranged on the bottom surface of the test tube rack and is communicated with the second notch; the top of the limiting piece is hinged to the second opening, and the bottom of the limiting piece is used as the free end to be embedded into the limiting groove through the second opening. The bottom of the test tube rack is provided with the limit groove, the limit groove corresponds to the limit piece, the groove bottom is provided with the second opening, the limit piece is embedded into the limit groove through the second opening to fix the test tube rack, and the fixing mode is simple and convenient.
6. According to the sample conveying device provided by the invention, the bottom of the test tube rack is also provided with the abdication chute which is communicated with the limit groove and extends along the sliding direction of the driving mechanism on the sample rack, and the notch of the abdication chute faces downwards; in the locking state, the yielding chute is used for avoiding the limiting piece embedded in the limiting groove when sliding along with the driving mechanism. The bottom of the test tube rack is provided with the abdication chute communicated with the limit groove, and the abdication chute can avoid the limit piece when the test tube rack slides into or slides out of the first through groove, so that the test tube rack is smoother when sliding into or sliding out.
7. The limiting piece comprises a body hinged on the sample frame and a hook-shaped part which is formed on the body in a bending mode, and the hook-shaped part is used as the free end. The hook-shaped part is arranged on the limiting part body, the bottom of the test tube rack is hooked through the hook-shaped part, and the hook-shaped part is hooked or separated conveniently and fast, and the structure is simple.
8. The invention provides a sample conveying device, wherein a driving mechanism comprises a first sliding mechanism and a second sliding mechanism, the sliding directions of the first sliding mechanism and the second sliding mechanism are intersected, the first sliding mechanism is fixed on the second sliding mechanism, and the first sliding mechanism comprises a first driver; a first slider that slides by being driven by the first driver; the push rod is fixed on the first sliding piece and faces one side of the limiting piece, and the driving mechanism applies the poking force to the free end through the push rod. The first sliding mechanism is fixed on the second sliding mechanism, the second sliding mechanism slides to realize that the first sliding mechanism linearly slides in the intersecting direction, the first sliding part is fixed on the first driver, the push rod is fixed on the first sliding part, and the push rod can slide towards or away from the limiting part under the driving of the first driver.
9. According to the sample conveying device provided by the invention, the longitudinal section of the push rod is formed into an L shape, the vertical part of the L shape is fixed on the first sliding part, and the horizontal part is used for poking the limiting part and is abutted against the bottom of the limiting part. One end of the L-shaped design of the push rod is fixed on the first sliding piece, and the other end of the L-shaped design of the push rod drives the limiting piece to move under the driving of the sliding piece, so that the push rod has a direct action effect and a simple structure.
10. The invention provides a sample conveying device, wherein the second sliding mechanism comprises a second driver; the second guide rail is positioned outside the sample rack and extends from the initial position to the working position; a second slider is slidably arranged on the second guide rail under the drive of the second driver; the first sliding mechanism is fixed on the second sliding piece. The first sliding mechanism slides along with the second sliding mechanism in the direction intersecting with the sliding direction of the first sliding mechanism, the test tube rack on the first sliding mechanism is conveyed to the taking working position, meanwhile, the used test tube rack and the first sliding mechanism can be conveyed back to the initial position, and then the first sliding mechanism directly returns the empty test tube rack to the original sample rack.
11. The sample conveying device provided by the invention is characterized in that the driving mechanism further comprises a bearing seat fixed on the second sliding piece, and a second through groove extending along the sliding direction of the first sliding mechanism is formed in the top of the bearing seat; the push rod is located in the second through groove, and in the locking state, the first sliding mechanism drives the test tube rack to slide into the second through groove from the sample rack. The bearing seat is provided with a second through groove which can be opposite to and communicated with the first through groove, so that the test tube rack can conveniently slide in or slide out between the first through groove and the second through groove.
12. The sample conveying device provided by the invention further comprises a reset mechanism which is arranged on the sample rack and used for limiting the test tube rack at the initial position, wherein the reset force applied by the reset mechanism to the test tube rack is smaller than the driving force of the driving mechanism to the test tube rack in the locking state. The reset mechanism is arranged at the relative position of the sample rack and the test tube rack, the test tube rack is positioned at the initial position in the sample rack when the test tube rack is just put into the sample rack, and the test tube rack is conveniently taken and put by the first sliding mechanism.
13. The invention provides a sample conveying device, wherein a reset mechanism comprises a first magnet fixed on a sample frame; the second magnet is fixed on the test tube rack and opposite to the first magnet, and the polarities of the surfaces of the first magnet and the second magnet, which face each other, are opposite. By utilizing the characteristic of heteropolar attraction of the magnets, the test tube rack can be positioned at the initial position in the sample rack.
14. The sample conveying device provided by the invention is characterized in that the locking mechanism is a self-locking switch; the self-locking switch comprises a self-locking plug fixed on the test tube rack, and a self-locking socket fixed on the surface of the driving mechanism, which is positioned on one side of the push rod and faces the sample rack, wherein the self-locking plug can be axially inserted into or pulled out from the self-locking socket. The first sliding mechanism drives the self-locking socket to be inserted into the self-locking plug on the test tube rack, the self-locking socket and the self-locking plug are in a locking state by first pressing, the test tube rack and the first sliding mechanism are fixed together at the moment, the test tube rack can be taken out from the first through groove to the second through groove, the self-locking socket and the self-locking plug are in an unlocking state by second pressing, the test tube rack is stopped at the initial position in the sample rack under the action of the reset mechanism at the moment, and the first sliding mechanism is separated from the test tube rack and returns to the second through groove.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a sample transfer apparatus according to the present invention;
FIG. 2 is a schematic diagram of a sample transfer apparatus according to the present invention;
FIG. 3 is a schematic diagram of a sample transfer apparatus according to the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 5 is a schematic view showing the test tube rack of FIG. 4 abutting against a limiting member;
FIG. 6 is a schematic view of the latch mechanism of FIG. 4 in a locked state;
FIG. 7 is a schematic view of the test tube rack of FIG. 4 in an extracted state;
FIG. 8 is a schematic view of a sample rack in the sample transfer apparatus of the present invention;
fig. 9 is a schematic structural view of a test tube rack in the sample transfer apparatus of the present invention.
Reference numerals illustrate:
1-a sample rack; 11-a first opening; 12-a first through groove; 13-a second opening; 14-a slider; 15-a photosensor;
2-test tube rack; 21-a yielding chute; 22-baffle; 23-placing grooves; 24-sliding grooves; 25-steps;
3-a latch mechanism; 31-a self-locking plug; 32-a self-locking socket;
4-a limiting mechanism; 41-limiting parts; 42-limiting grooves;
5-a first slide mechanism; 51-a first driver; 52-a first slider; 53-push rod; 54-a first rail;
6-a second slide mechanism; 61-a second driver; 62-a second rail; 63-a second slide;
7-a bearing seat; 71-a second through slot; 72-bar code device fixing plate;
8-a reset mechanism; 81-a first magnet; 82-a second magnet;
9-mounting plates;
10-a bottom plate.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
The present embodiment provides a sample transfer apparatus, as shown in fig. 1 to 3, including a sample rack 1, a test tube rack 2, a driving mechanism, a lock mechanism 3, and a stopper mechanism 4. Wherein, at least one test tube rack 2 is initially arranged on the sample rack 1, the sample rack 1 is arranged on the bottom plate 10, for example, five first through grooves 12 are arranged on the sample rack 1 in parallel and are respectively used for placing one test tube rack 2, eight, nine or ten first through grooves 12 can be arranged on the sample rack 1 and are used for placing test tube racks, a driving mechanism is arranged in a sliding manner relative to the sample rack 1 between the initial position and the working position of the test tube rack 2 according to specific requirements, a locking mechanism 3 is arranged between the test tube rack 2 and the driving mechanism, the test tube rack 2 and the driving mechanism are switched between a locked state and a separated unlocked state under the pressing force of the driving mechanism at the initial position, a limiting mechanism 4 is rotatably arranged on the sample rack 1 and is in linkage with the driving mechanism and is rotated under the stirring of the driving mechanism, so that the driving mechanism is used for limiting the test tube rack 2 on the sample rack 1 when or before the driving mechanism applies the pressing force to the locking mechanism 3.
The sample conveyer of this structure, actuating mechanism slides between the home position and the operating position of test-tube rack 2, latch mechanism 3 sets up between test-tube rack 2 and actuating mechanism, receive actuating mechanism's pressing force, test-tube rack 2 and actuating mechanism can be through latch mechanism 3 switching between locking and unlocking state, stop gear 4 and actuating mechanism linkage setting, actuating mechanism is when exerting pressing force locking or unblock test-tube rack to latch mechanism 3, set for the position on sample rack 1 with test-tube rack 2 through stop gear 4, latch mechanism 3 can lock or unblock test-tube rack 2 in the home position of test-tube rack 2, not only can take out test-tube rack 2 to operating position after locking from the home position, but also can return test-tube rack 2 after taking test tube with operating position department to the home position unblock of test-tube rack 2, improve conveying efficiency.
As shown in fig. 1 to 7, the driving mechanism includes a first slide mechanism 5 and a second slide mechanism 6. The first sliding mechanism 5 is disposed on the mounting plate 9 in the vertical direction, and the first sliding mechanism 5 includes a first driver 51, a first rail 54, a first belt, a first slider 52, and a push rod 53. As shown in fig. 3, the first driver 51 is fixed on one side (such as the right side in fig. 2) of the mounting plate 9, the first driver 51 is a motor, a first belt transmission device and a first guide rail 54 are arranged on the mounting plate 9 on the same side as the first driver 51, the first belt is sleeved on the synchronizing wheel, the first driver 51 drives the first belt to slide on the synchronizing wheel, the first belt transmission direction is the same as the extending direction of the first guide rail 54, the extending direction of the first guide rail 54 is parallel to the sliding direction of the test tube rack 2 in the first through groove 12, the first sliding piece 52 is erected on the mounting plate 9, the first sliding piece 52 is positioned on one side of the first driver 51 and fixed with the first belt, the first sliding piece 52 is slidingly arranged on the first guide rail 54, and the first sliding piece 52 slides along the first guide rail 54 under the driving of the first belt; as shown in fig. 4, the first sliding member 52 is provided with a self-locking socket 32 on the other side of the mounting plate 9, a push rod 53 is provided at the bottom of the first sliding member 52 below the self-locking socket 32, the longitudinal section of the push rod 53 is L-shaped, the vertical part of the L-shape is fixed on the first sliding member 52, and the horizontal part is used for stirring the limiting member 41 and abutting against the bottom of the limiting member 41.
As shown in fig. 2, the second slide mechanism 6 is mounted on the base plate 10, and the second slide mechanism 6 includes a second driver 61, a second guide rail 62, a second belt, and a second slider 63. The second driver 61 is vertically disposed at the bottom of the bottom plate 10, the second driver 61 is a motor, a driving shaft of the second driver 61 penetrates the bottom plate 10 upwards, a second belt transmission device and a second guide rail 62 are disposed on the upper surface of the bottom plate 10, the second belt transmission direction is the same as the extending direction of the second guide rail 62, and the extending direction of the second guide rail 62 is spatially perpendicular to the extending direction of the first guide rail 54. The second guide rail 62 is slidably provided with a second sliding member 63, and the second sliding member 63 is fixed with one side of the second belt, and the second driver 61 drives the second sliding member 63 to slide on the second guide rail 62 when driving the second belt.
The second sliding part 63 is provided with the bearing seat 7, the bearing seat 7 is provided with the second through groove 71 along the sliding direction of the test tube rack 2 in the first through groove 12, the mounting plate 9 of the first sliding mechanism 5 is fixed on the bearing seat 7, the self-locking socket 32 on the first sliding part 52 and the push rod 53 at the bottom are positioned in the second through groove 71, and the first sliding mechanism 5 can drive the test tube rack 2 to take out the test tube rack 2 from the first through groove 12 of the sample rack 1 to the second through groove 71 or slide the test tube rack 2 into the first through groove 12 by the second through groove 71.
As shown in fig. 4 to 9, the limiting mechanism 4 includes a limiting member 41 and a limiting groove 42, the limiting member 41 is rotatably disposed on the sample rack 1, each first through groove on the sample rack 1 faces one side wall of the first sliding mechanism 5 to form a first opening 11, and the bottom of the first through groove 12 faces one end of the first sliding mechanism 5 to form a second opening 13.
As shown in fig. 4, the limiting member 41 includes a body and a hook portion formed on the body, the hook portion is used as a free end, the upper end of the body is hinged on the second opening, and the hook portion is suspended in the second opening 13 by self gravity of the limiting member 41.
As shown in fig. 9, the limiting groove 42 is formed in the bottom of the test tube rack 2, the baffle 22 is disposed at one end of the bottom of the test tube rack 2 near the push rod 53, the notch-down yielding chute 21 is formed in the bottom of the test tube rack 2 along the sliding direction of the test tube rack 2, the limiting groove 42 is formed between the yielding chute 21 and the baffle 22, the limiting piece 41 is toggled by the push rod 53 of the first sliding mechanism to rotate, the hook-shaped portion is embedded into the limiting groove 42 and abuts against the baffle 22, the test tube rack 2 is limited at the set position of the sample rack 1, and the yielding chute 21 can avoid the limiting piece 41 when the test tube rack 2 is pulled out or put back into the sample rack 1. In addition, the limit groove 42 may not be provided, the abdication chute 21 extends inward of the baffle 22 along the sliding direction of the test tube rack 2 in the first through groove 12 and abuts against the baffle 22, and the limit piece 41 directly rotates into the abdication chute 21 and hooks the inner side of the baffle 22. That is, the hook-shaped portion is pushed by the push rod 53, and the limiting member 41 can rotate around the hinge position on the second opening 13 to be embedded and kept in the yielding chute 21.
As shown in fig. 8 and 9, two symmetrical first guide grooves are formed on the outer wall surfaces of the two sides of the test tube rack 2 along the sliding direction of the test tube rack 2 in the first through groove 12, two guide protrusions corresponding to the first guide grooves on the test tube rack 2 one by one are formed on the inner wall surfaces of the two sides of the first through groove 12 of the sample rack 1, and the guide protrusions extend into the first guide grooves one by one.
For example, the first guide groove is a slide groove 24, the guide protrusion is a slide block 14, and the movement of the test tube rack 2 in the first through groove 12 is limited to slide on the same straight line with the slide groove 24 and the slide block 14.
As shown in fig. 9, the bottom of the end of the test tube rack 2 facing the driving mechanism is provided with a step 25 with the same recess direction as the limit groove 42, the step surface of the step 25 is downward arranged and forms a limit bulge with the limit groove 42, and when the test tube rack 2 is manually or mechanically placed in the first through groove 12, the top surface of the first end of the limit piece 41 can be abutted on the step surface when the test tube rack 2 moves to the limit piece 41 along the first through groove 12.
For example, the limit projection is a baffle 22 extending vertically, a right angle is formed between the baffle 22 and the step surface,
When the test tube rack 2 slides toward the first slide mechanism 5, the test tube rack 2 can only slide in the horizontal direction but cannot move in the vertical direction in the first through groove 12 due to the horizontal guiding action of the first guide groove and the guide projection, and the test tube rack 2 is restricted from continuing to slide toward the drive mechanism by the frictional force generated by the abutment due to the abutment of the first end of the stopper 41 against the step surface and is retracted to the initial position in the sample rack 1 by the reset mechanism 8 (mentioned later) as shown in fig. 4.
As shown in fig. 9, test tube placing grooves 23 are formed in the test tube rack 2, for example, five reagent tube placing grooves 23 are formed in a row along the sliding direction of the test tube rack 2, seven, eight or nine placing grooves 23 can be formed, and the test tube rack 2 can place reagent tubes in the sample rack 1 through the cooperation of two sliding grooves 24 on two sides and two sliding blocks 14 in the first through groove 12 according to specific needs.
As shown in fig. 4 to 9, the reset mechanism 8 is disposed at the positions corresponding to the two sides of the tail of each first through slot 12 and the tail of the test tube rack 2 of the sample rack 1, the reset mechanism 8 comprises first magnets 81 relatively fixed on the inner surfaces of the two side walls of the first through slot 12, second magnets 82 are fixed on the outer wall surfaces of the two sides of the bottom of the test tube rack 2 in a one-to-one correspondence manner, the polarities of the surfaces of the first magnets 81 and the second magnets 82 facing each other are opposite, when the test tube rack 2 is placed in the sample rack 1, the first magnets 81 and the second magnets 82 attract each other, and the mutual attractive force between the first magnets 81 and the second magnets 82 is larger than the static friction force on the bottom of the first through slot 12 when the test tube rack 2 is fully loaded with reagent tubes and reagents, so that the mutual attractive force between the two groups of magnets after the test tube rack 2 is placed in the first through slot 12 of the sample rack 1 is kept at the initial position in the sample rack 1, and the mutual attractive force between the first magnets 81 and the second magnets 82 is smaller than the driving force of the first sliding mechanism 5 on the test tube rack 2 in the locking state, so that the first sliding mechanism 5 can pull the test tube rack 2 out of the first through slot 12 from the first through slot 12.
A photoelectric sensor 15 is further arranged in each first through groove 12 to detect whether the test tube rack 2 is placed in the first through groove 12.
As shown in fig. 4 to 7, the locking mechanism 3 is a self-locking switch, and the self-locking switch comprises a self-locking plug 31 and a self-locking socket 32, wherein the self-locking plug 31 is fixed on the outer wall surface of the side, facing the first sliding mechanism 5, of the test tube rack 2, the self-locking socket 32 is opposite to the self-locking plug 31 and fixed on a first sliding piece 52 positioned above a push rod 53, the self-locking plug 31 can be axially inserted into the self-locking socket 32 or pulled out from the self-locking socket 32, when the self-locking socket 32 is slowly sleeved into the self-locking plug 31, the self-locking socket 32 and the self-locking plug 31 are locked and fixed together under the linkage cooperation of the limiting piece 41 and are pressed by the second pressing force of the first sliding piece 52, and the self-locking socket 32 and the self-locking plug 31 are unlocked and can be separated from each other.
The bar code device fixing plate 72 is arranged on one side of the bearing seat 7 opposite to the first driver 51, and can fix bar code devices, and when the test tube rack 2 slides into the second through groove 71 from the first through groove 12, the bar code devices can scan and record bar codes on reagent tubes in the test tube rack 2 one by one.
The working procedure of the sample transfer apparatus in this embodiment is as follows:
Assuming that the state shown in fig. 4 is an initial state, the test tube rack 2 is placed in the first through groove 12 in the sample rack 1, the test tube rack 2 is at the initial position in the sample rack 1 under the action of the reset mechanism 8, the step surface of the test tube rack 2 and the first end of the limiting piece 41 are in a separated state, the controller detects that the test tube rack 2 is placed in the first through groove 12 through the photosensitive sensor 15, the first driver 51 is started, the first driver 51 drives the self-locking socket 32 and the push rod 53 on the first sliding piece 52 to move towards the left test tube rack 2 through the second through groove 71, the push rod 53 abuts against the limiting piece 41, the limiting piece 41 is pushed to rotate at the hinging position, the hook-shaped part of the limiting piece 41 is embedded into the limiting groove 42, the test tube rack 2 is limited on the sample rack 1, meanwhile, the self-locking plug 31 stretches into the inner cavity of the self-locking socket 32 under the pushing action of the push rod 53, and the first sliding piece 52 continues to slide leftwards to press the self-locking socket 32 and the self-locking plug 31 to be locked together, at the moment, and the abutting action is ended as shown in fig. 6.
The first driver 51 is turned on to enable the first driver 51 to reversely rotate, the first sliding piece 52 is driven to slide rightwards, the push rod 53 slowly slides rightwards to be separated from the limiting piece 41, the limiting piece 41 is separated from the limiting groove 42 under the action of self gravity and is hung on the second notch 13, the locking mechanism 3 locks the test tube rack 2, the test tube rack 2 is slid into the second through groove 71 from the first through groove 12, the first driver 51 is turned off, the test tube rack 2 is kept in the second through groove 71 on the bearing seat 7, the second driver 61 is turned on, the second driver 61 drives the second sliding piece 63 to slide to the sample working position on the second guide rail 62, and then the second driver 61 is turned off.
After the reagent tubes in the test tube rack 2 are completely used up, the second driver 61 is started, the second driver 61 moves reversely to drive the second sliding part 63 to drive the first sliding mechanism 5 to slide on the second guide rail 62 to the position corresponding to the first through groove 12 and the second through groove 71 on the sample rack 1, then the second driver 61 is closed, the first driver 51 is started, the first sliding part 52 is driven to drive the empty test tube rack 2 to slide leftwards from the second through groove 71 to the first through groove 12, in the process, the push rod 53 pushes the limiting part 41 to rotate at the hinge position, when the hook-shaped part of the limiting part 41 is embedded into the limiting groove 42, the hook-shaped part hooks the baffle 22 to fix the test tube rack 2 in the first through groove 12, meanwhile, the first sliding part 52 continues to slide leftwards to press the self-locking socket 32 again to unlock the self-locking plug 31, at the moment, the first driver 51 drives the first sliding part 52 reversely to slide rightwards, the self-locking socket 32 is slowly separated from the self-locking plug 31, the push rod 53 slowly slides rightwards to separate from the limiting part 41, and the first sliding part 52 is initially slid leftwards to the first sliding part 52 to close the first sliding part 51, and the first driver 2 is returned to the first driver to the position to finish the step 2.
Example 2
The present embodiment provides a sample transfer apparatus, which is different from the sample transfer apparatus in embodiment 1 in that: the reset mechanism 8 can be provided with two V-shaped elastic pieces and clamping grooves, the V-shaped elastic pieces protruding towards the inside of the grooves are symmetrically arranged on the two side walls below the first through groove 12 of the sample rack 1, the clamping grooves are respectively arranged on the two side surfaces of the test tube rack 2 corresponding to the protruding parts of the V-shaped elastic pieces, when the test tube rack 2 is pushed into the first through groove 12 of the sample rack 1, the V-shaped elastic pieces are slowly extruded from one end of the test tube rack 2 to enable the V-shaped elastic pieces to elastically deform, when the protruding parts of the V-shaped elastic pieces are clamped into the clamping grooves, the V-shaped elastic pieces rebound, extrusion acting forces are generated on the test tube rack 2 by the V-shaped elastic pieces on two sides, the test tube rack 2 is limited at the initial position in the sample rack 1, and the extrusion acting forces are smaller than the driving force of the first driver 51 on the test tube rack 2 under the locking state.
Example 3
The present embodiment provides a sample transfer apparatus, which is different from the sample transfer apparatus of embodiment 1 or embodiment 2 in that: the mounting plate 9, the first belt conveyor, the second belt conveyor, and the first guide rail 54 may not be provided. The first driver 51 is arranged on the bearing seat 7 along the extending direction of the second through groove 71, the first driver 51 adopts a push rod motor, a push rod of the first driver 51 is fixed with the first sliding piece 52, and the self-locking socket 32 and the push rod 53 on the first sliding piece 52 are pushed along the second through groove 71 to slide towards or away from the first through groove 12; the second driver 61 adopts a push rod motor, the second driver 61 is arranged along the extending direction of the second guide rail 62, the push rod of the second driver 61 is fixed on the second sliding piece 63, and the second sliding piece 63 is pushed to drive the bearing seat 7 to slide to the sample analysis position along the second guide rail 62.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (9)
1.A sample transfer apparatus, comprising:
a sample rack (1);
At least one test tube rack (2) initially arranged on the sample rack (1);
The driving mechanism is arranged in a sliding manner relative to the sample rack (1) between a starting position and a working position of the test tube rack (2);
The locking mechanism (3) is arranged between the test tube rack (2) and the driving mechanism, and the initial position is pressed by the driving mechanism to switch the test tube rack (2) and the driving mechanism between a locked state and a separated unlocked state;
The limiting mechanism (4) is rotatably arranged on the sample rack (1), and when or before the driving mechanism applies the pressing force to the locking mechanism (3), the driving mechanism establishes a linkage relation with the limiting mechanism (4) and drives the limiting mechanism (4) to rotate so that the limiting mechanism (4) limits the test tube rack (2) on the sample rack (1);
The limiting mechanism (4) comprises
The limiting groove (42) is arranged on the test tube rack (2);
The limiting piece (41) is hinged to the sample rack (1), a first end of the limiting piece (41) stretches into a movement path of the test tube rack (2) sliding towards one side of the driving mechanism, and a second end is used as a free end;
under the stirring of the driving mechanism, the second end is embedded and kept in the limiting groove (42), and the first end moves away from a moving path of the test tube rack (2) sliding towards one side of the driving mechanism;
The limiting piece (41) comprises a body hinged on the sample rack (1) and a hook-shaped part formed on the body, wherein the hook-shaped part is used as the free end;
The hook-shaped part of the limiting piece (41) is embedded into the limiting groove (42), so that the test tube rack (2) is limited on the sample rack (1);
the locking mechanism (3) is a self-locking switch; the self-locking switch comprises
The self-locking plug (31) is fixed on the test tube rack (2);
The self-locking socket (32) is fixed on the surface of the driving mechanism, which faces one side of the sample rack (1), and the self-locking plug (31) can be axially inserted into the self-locking socket (32) or can be pulled out from the self-locking socket (32);
the driving mechanism comprises a first sliding mechanism (5) and a second sliding mechanism (6) with crossed sliding directions, the first sliding mechanism (5) is fixed on the second sliding mechanism (6), wherein the first sliding mechanism (5) comprises
A first driver (51);
a first slider (52) that slides by being driven by the driver;
A push rod (53) fixed on the first sliding piece (52) and facing one side of the limiting piece (41), wherein the driving mechanism applies poking force to the free end through the push rod (53);
The longitudinal section of the push rod (53) is formed into an L shape, the vertical part of the L shape is fixed on the first sliding part (52), and the horizontal part of the L shape is used for poking the limiting part (41) and is abutted on the bottom of the limiting part (41).
2. Sample transfer apparatus according to claim 1, wherein the top of the sample rack (1) is provided with at least one first through slot (12) with a notch facing upwards and presenting a first opening (11) on the side facing the drive mechanism; the test tube rack (2) is placed in the first through groove (12); the limiting piece (41) is hinged to the bottom of the first through groove (12);
in the locking state, the driving mechanism drives the test tube rack (2) to slide out of or slide into the first through groove (12) through the first notch (11).
3. The sample transfer apparatus according to claim 2, wherein the two side walls of the test tube rack (2) are provided with first guide grooves extending in the sliding direction thereof in the first through grooves (12);
Guide protrusions suitable for being embedded into the first guide grooves are respectively arranged on the two inner side walls of the first through grooves (12);
The bottom of one end of the test tube rack (2) facing the driving mechanism is provided with a step (25) with the same recess direction as the limit groove (42), the step surface of the step (25) is downwards arranged and forms a limit bulge with the limit groove (42), and the top surface of the first end of the limit piece (41) is positioned on the sliding path of the step surface in the first through groove (12) and is suitable for being tightly abutted to the step surface.
4. A sample transfer apparatus according to claim 3, wherein the bottom of the first through slot (12) is provided with a second opening (13); the limiting groove (42) is arranged on the bottom surface of the test tube rack (2) and is communicated with the second notch (13);
the top of the limiting piece (41) is hinged to the second opening (13), and the bottom of the limiting piece is used as the free end to be embedded into the limiting groove (42) through the second opening (13).
5. The sample conveying device according to claim 4, wherein a yielding chute (21) which is communicated with the limit groove (42) and extends along the sliding direction of the driving mechanism on the sample rack (1) is further arranged on the bottom of the test tube rack (2), and the notch of the yielding chute (21) faces downwards;
In the locking state, the yielding chute (21) is used for avoiding the limiting piece (41) embedded in the limiting groove (42) when sliding along with the driving mechanism.
6. Sample transfer apparatus according to claim 1, wherein the second slide mechanism (6) comprises
A second driver (61);
A second guide rail (62) located outside the sample rack (1) and extending from the starting position to the working position;
A second slider (63) slidably disposed on the second rail (62) driven by the second driver (61);
the first sliding mechanism (5) is fixed on the second sliding piece (63).
7. The sample transfer apparatus of claim 6, wherein the drive mechanism further comprises a carrier seat (7) fixed to the second slide (63), the top of the carrier seat (7) being provided with a second through slot (71) extending in the sliding direction of the first slide mechanism (5);
The push rod (53) is located in the second through groove (71), and in the locking state, the first sliding mechanism (5) drives the test tube rack (2) to slide into the second through groove (71) from the sample rack (1).
8. The sample transfer apparatus of any one of claims 1-5, further comprising a reset mechanism (8) provided on the sample rack (1) for defining the test tube rack (2) in a home position, wherein the reset mechanism (8) applies a reset force to the test tube rack (2) that is smaller than a driving force of the driving mechanism to the test tube rack (2) in the locked state.
9. The sample transfer apparatus of claim 8, wherein the reset mechanism (8) comprises
A first magnet (81) fixed to the sample holder (1);
And a second magnet fixed on the test tube rack (2) and opposite to the first magnet (81), wherein the polarities of the surfaces of the first magnet (81) and the second magnet facing each other are opposite.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811128597.2A CN109342753B (en) | 2018-09-27 | 2018-09-27 | Sample transfer apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811128597.2A CN109342753B (en) | 2018-09-27 | 2018-09-27 | Sample transfer apparatus |
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| CN109342753B true CN109342753B (en) | 2024-05-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109999938B (en) * | 2019-03-29 | 2024-06-25 | 赫安仕科技（苏州）有限公司 | Reagent storage device |
| CN109946444A (en) * | 2019-03-29 | 2019-06-28 | 赫安仕科技（苏州）有限公司 | A kind of full automatic thrombus detection device for elasticity and detection method |
| CN109975073B (en) * | 2019-03-29 | 2024-03-19 | 赫安仕科技（苏州）有限公司 | Liquid taking device and liquid taking method |
| CN110208559B (en) * | 2019-06-18 | 2024-06-07 | 广东优尼德生物科技有限公司 | Biochemical analyzer |
| CN113150958B (en) * | 2021-05-26 | 2022-02-15 | 深圳市麦瑞科林科技有限公司 | Inactivated virus preservation solution system and application thereof |
| CN115414984B (en) * | 2022-09-14 | 2023-06-20 | 光子集成(温州)创新研究院 | Test tube rack tray device capable of achieving mechanical self-locking |
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| CN103884854A (en) * | 2014-04-01 | 2014-06-25 | 重庆科斯迈生物科技有限公司 | Sample system of chemiluminescent immunoassay instrument |
| CN107449929A (en) * | 2016-10-26 | 2017-12-08 | 安图实验仪器(郑州)有限公司 | With emergency diagnosis position and the sample rack management of guiding mechanism and analytical equipment |
| CN209247803U (en) * | 2018-09-27 | 2019-08-13 | 中国科学院苏州生物医学工程技术研究所 | Sample transport apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884854A (en) * | 2014-04-01 | 2014-06-25 | 重庆科斯迈生物科技有限公司 | Sample system of chemiluminescent immunoassay instrument |
| CN107449929A (en) * | 2016-10-26 | 2017-12-08 | 安图实验仪器(郑州)有限公司 | With emergency diagnosis position and the sample rack management of guiding mechanism and analytical equipment |
| CN209247803U (en) * | 2018-09-27 | 2019-08-13 | 中国科学院苏州生物医学工程技术研究所 | Sample transport apparatus |
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