CN215449314U - Sample counting device and sample analyzer - Google Patents
Sample counting device and sample analyzer Download PDFInfo
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- CN215449314U CN215449314U CN202121418157.8U CN202121418157U CN215449314U CN 215449314 U CN215449314 U CN 215449314U CN 202121418157 U CN202121418157 U CN 202121418157U CN 215449314 U CN215449314 U CN 215449314U
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- 238000003825 pressing Methods 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model discloses a sample counting device which comprises a fixed seat and a counting rod, wherein the counting rod is hinged with the fixed seat, and one end of the counting rod is set as a counting end; the fixed seat is provided with a detection unit and a pressing unit; the detection unit is used for triggering counting when the counting rod rotates relative to the fixed seat; the pressing unit is used for applying force to the counting rod and enabling the counting end to apply pressing force to the sample rack. The utility model also discloses a sample analyzer, which comprises a sample frame and the sample counting device, wherein the sample frame is provided with a sample groove for placing a sample container and a counting table matched with the counting end, the counting table is positioned below the counting end and is fixedly pressed by the counting end, and counting grooves or counting bosses matched with the counting end are arranged on the counting table in a one-to-one correspondence manner with the sample groove. The counting purposes of pressing the sample rack and counting can be simultaneously met.
Description
Technical Field
The utility model belongs to the field of counting of medical instruments, and particularly relates to a sample counting device and a sample analyzer.
Background
As an in vitro diagnostic device, a sample analyzer is widely used for disease diagnosis and medical science research. The malposition of the sample measurement result belongs to the high-risk grade fault of the sample analyzer, and in order to avoid the risk that the recorded position of the sample rack is not consistent with the actual position of the sample rack, the sample analyzer with the sample conveying device is generally provided with a sample rack mobile detection device. In addition, in order to prevent the sample rack from moving laterally when the sample analyzer grabs or replaces the sample container on the sample rack, the sample analyzer with the sample transport device is usually provided with a sample rack pressing device.
In the existing sample analyzer, a sample conveying device of the sample analyzer utilizes the elastic force of a spring to press a sample frame, and an independent sample frame movement detection device is arranged. The sample transporting device of the sample analyzer has a complex structure and higher production cost due to the adoption of the independent sample rack pressing device and the independent sample rack moving detection device.
Disclosure of Invention
In view of the above, the present invention provides a sample counting device and a sample analyzer, which can simultaneously satisfy the counting purposes of pressing a sample rack and counting.
To achieve the above object, the present invention provides the following counting scheme:
the utility model firstly provides a sample counting device, which comprises a fixed seat and a counting rod, wherein the counting rod is hinged with the fixed seat, and one end of the counting rod is set as a counting end;
the fixed seat is provided with a detection unit and a pressing unit;
the detection unit is used for triggering counting when the counting rod rotates relative to the fixed seat;
the pressing unit is used for applying force to the counting rod and enabling the counting end to apply pressing force to the sample rack.
Furthermore, a rotating shaft is arranged on the counting rod and is in running fit with the fixed seat.
Further, the pressing unit is arranged between the rotating shaft and the counting end and exerts a pressure effect on the counting rod; or the pressing unit is arranged on one side of the rotating shaft, which is opposite to the counting end, and exerts a pulling force on the counting rod.
Further, when the pressing unit is arranged between the rotating shaft and the counting end, the pressing unit adopts a pressure spring; when the pressing unit is arranged on one side of the rotating shaft back to the counting end, the pressing unit adopts a tension spring.
Furthermore, the fixing seat is provided with a stop block positioned above the counting rod, and two ends of the pressure spring or the tension spring are respectively connected with the stop block and the counting rod.
Furthermore, the pressing unit adopts a tension spring, the other end of the counting rod opposite to the counting end is provided with a connecting sheet, and the tension spring is connected with the connecting sheet; the tension spring (5) is used for applying torque to the counting rod (2) and the length of the force arm of the torque applied to the counting rod (2) by the sample rack is larger than that of the force arm of the torque applied to the counting rod (2) by the sample rack.
Further, the detection unit adopts a detection optocoupler, a travel switch or a microswitch.
Furthermore, the fixing seat is provided with an adjusting block for adjusting the installation position of the detection unit, and the adjusting block (9) is provided with a waist-shaped round hole for adjusting the installation position of the adjusting block.
Furthermore, the counting end is provided with a roller which is matched with the counting end in a rotating way, and the roller is sleeved with a rubber sleeve.
The utility model also provides a sample analyzer, which comprises a sample rack and the sample counting device, wherein the sample rack is provided with a sample groove for placing a sample container and a counting table matched with the counting end, the counting table is positioned below the counting end and is fixedly pressed by the counting end, and counting grooves or counting bosses matched with the counting end are arranged on the counting table in a one-to-one correspondence manner with the sample groove.
Further, when the counting table is provided with a counting groove, the counting groove is arranged right in front of the corresponding sample groove; when the counting boss is arranged on the counting table, the counting boss is positioned between two adjacent sample grooves.
The utility model has the beneficial effects that:
according to the sample analyzer, the pressing unit is arranged on the fixing seat to apply force to the counting rod, so that the counting end can be pressed and fixed on the counting table of the sample rack, and the sample rack is pressed and fixed; the sample rack moves, and the counting rod is driven to rotate relative to the fixed seat by utilizing the height change between two adjacent counting grooves or two adjacent counting bosses, so that the detection unit is triggered to count; in summary, the sample analyzer of the present invention can satisfy the counting purpose of compressing the sample rack and realizing counting at the same time, and has the following advantages:
1) the sample frame is compressed, fixed and counted by using the same sample counting device, the structure is simple and compact, and the cost is low;
2) the whole counting process has no obvious collision, so that no noise is generated.
Drawings
In order to make the objects, counting schemes and advantages of the present invention more clear, the present invention is illustrated by the following figures:
FIG. 1 is a schematic structural diagram of a sample counting apparatus according to an embodiment of the present invention;
FIG. 2 is an exploded view of the sample counting apparatus according to the present embodiment;
fig. 3 is a schematic structural view of the sample holder.
Description of reference numerals:
1-a fixed seat; 2-a counting bar; 3-a counting end; 4-a rotating shaft; 5-a tension spring; 6-a stop block; 7-connecting the sheet; 8-a microswitch; 9-a regulating block; 10-a roller; 11-a rubber sleeve; 12-a sample trench; 13-a counting station; 14-counting grooves; 15-mounting grooves; 16-rotating the trough.
Detailed Description
The present invention is further described with reference to the following figures and specific examples so that one skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
The sample analyzer of the present embodiment includes a sample rack and a sample counting device. As shown in fig. 1, the sample counting device of the present embodiment includes a fixing base 1 and a counting rod 2, the counting rod 2 is hinged to the fixing base 1, and one end of the counting rod 2 is set as a counting end 3. The fixed seat 1 is provided with a detection unit and a pressing unit. The detection unit is used for being triggered to count when the counting rod 2 rotates relative to the fixed seat 1. The pressing unit is used for applying force to the counting rod 2 and enabling the counting end 3 to apply pressing force to the sample rack. The sample rack of this embodiment is equipped with sample groove 12 that is used for placing the sample container and count platform 13 with count end 3 complex, and count platform 13 is located the below of count end 3 and is compressed tightly fixedly by count end 3, and is equipped with on the count platform 13 with sample groove 13 one-to-one with count end 3 complex count recess 14 or count boss.
Specifically, when the counting table 13 is provided with the counting grooves 14, the counting grooves 14 are arranged right in front of the corresponding sample grooves 12, the counting ends 3 fall into the corresponding counting grooves 14 when facing a certain sample groove 12, when the sample rack moves, the counting ends 3 move into another adjacent counting groove 14 from one counting groove 14, the counting ends 3 have a moving process of ascending first and then descending, so that the counting rod 2 is driven to rotate, and the detection unit counts. Similarly, when being equipped with the count boss on count platform 13, the count boss is located between two adjacent sample grooves 12, and when the sample frame removed, count end 3 removed the in-process of opposite side from one side of count boss, and count end 3 has a motion process that rises earlier and then descends to drive count pole 2 and rotate, detecting element count. The counting table 13 of the present embodiment is provided with a counting groove 14.
Furthermore, a rotating shaft 4 is arranged on the counting rod 2, and the rotating shaft 4 is in running fit with the fixed seat 1. Specifically, further, when the compressing unit is disposed between the rotating shaft 4 and the counting end 3, the compressing unit applies a downward pressure to the counting rod 2, and the compressing unit at this time is a compression spring. According to the lever principle, the counting table 13 exerts upward force on the counting rod 2 and the counting end 3 to balance the action of bending moment exerted by the pressing unit on the counting rod 2, and according to the principle that the acting force and the reacting force are equal in magnitude and opposite in direction, the counting end 3 exerts downward pressing force on the counting table 13, so that the sample rack is pressed and fixed.
When the pressing unit is arranged on the side of the rotating shaft 4 opposite to the counting end 3, the pressing unit exerts an upward pulling force on the counting rod 2, and the pressing unit at the moment adopts the tension spring 5. According to the lever principle, the counting table 13 exerts upward force on the counting rod 2 and the counting end 3 to balance the action of bending moment exerted by the pressing unit on the counting rod 2, and according to the principle that the acting force and the reacting force are equal in magnitude and opposite in direction, the counting end 3 exerts downward pressing force on the counting table 13, so that the sample rack is pressed and fixed.
Specifically, the fixing seat 1 is provided with a stop block 6 positioned above the counting rod 2, and two ends of the pressure spring or the tension spring 5 are respectively connected with the stop block 6 and the counting rod 2. The compressing unit of this embodiment adopts extension spring 5, and the other end that count pole 2 is relative with count end 3 is equipped with connection piece 7, and extension spring 5 links to each other with connection piece 7. Specifically, the force arm length of the torque applied to the counting rod 2 by the tension spring 5 is greater than that of the torque applied to the counting rod 2 by the sample rack, so that the interaction force between the sample rack and the counting rod 2 is greater than the tension of the tension spring 5, and the technical purpose of amplification is achieved.
The fixing base 1 of this embodiment is provided with a mounting groove 15 for mounting the counting rod 2, the two sides of the mounting groove 15 are respectively provided with a rotating groove 16 for mounting the rotating shaft 4, and the rotating shaft 4 is perpendicular to the axis of the counting rod 2. The stop block 6 covers the mounting groove 15 and the rotating groove 16, and a limit interval for the rotation of the counting rod 2 around the rotating shaft 4 is formed between the stop block 6 and the groove bottom of the mounting groove 15, and the rotation interval is matched with the movement amplitude of driving the counting rod 2 to ascend and then descend when the sample rack moves.
Further, the detection unit adopts a detection optocoupler, a travel switch or a microswitch 8. The detecting element of this embodiment adopts micro-gap switch 8, can effectively avoid the photoelectric sensor who adopts in the current count to receive external light and dust interference's problem easily, and micro-gap switch 8 adopts mechanical type to trigger, and it has the uniqueness to make or break, can increase the reliability of count. Preferably, the fixing base 1 of the present embodiment is provided with an adjusting block 9 for adjusting the installation position of the detecting unit, so as to improve the counting sensitivity and reliability. Specifically, be equipped with the waist shape round hole that is used for adjusting its mounted position on the regulating block 9 of this embodiment, because micro-gap switch 8's tolerance is big, need utilize regulating block 9 to adjust micro-gap switch 8's position during the assembly, make its and count the cooperation relation between the pole 2 more accurate and stable.
Furthermore, be equipped with rather than normal running fit's gyro wheel 10 on the count end 3, the suit is equipped with rubber sleeve 11 on the gyro wheel 10, can reduce frictional force and the rolling noise between count end 3 and the count platform 13.
In the sample analyzer of the embodiment, the pressing unit is arranged on the fixing seat to apply force to the counting rod, so that the counting end can be pressed and fixed on the counting table of the sample rack, and the sample rack is pressed and fixed; the sample rack moves, and the counting rod is driven to rotate relative to the fixed seat by utilizing the height change between two adjacent counting grooves or two adjacent counting bosses, so that the detection unit is triggered to count; in conclusion, the sample analyzer of the embodiment can simultaneously satisfy the counting purpose of compressing the sample rack and realizing counting, and has the following advantages:
1) the sample frame is compressed, fixed and counted by using the same sample counting device, the structure is simple and compact, and the cost is low;
2) the whole counting process has no obvious collision, so that no noise is generated.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or the change of the counting personnel in the counting field based on the utility model are all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.
Claims (10)
1. A sample counting device, characterized by: the counting device comprises a fixed seat (1) and a counting rod (2), wherein the counting rod (2) is hinged with the fixed seat (1), and one end of the counting rod (2) is set as a counting end (3);
the fixed seat (1) is provided with a detection unit and a pressing unit;
the detection unit is used for triggering counting when the counting rod (2) rotates relative to the fixed seat (1);
the pressing unit is used for applying force to the counting rod (2) and enabling the counting end (3) to apply pressing force to the sample rack.
2. The sample counting device according to claim 1, wherein: the counting rod (2) is provided with a rotating shaft (4), and the rotating shaft (4) is matched with the fixed seat (1) in a rotating mode.
3. The sample counting device according to claim 2, wherein: the pressing unit is arranged between the rotating shaft (4) and the counting end (3) and exerts a pressure effect on the counting rod (2); or the pressing unit is arranged on one side of the rotating shaft (4) back to the counting end (3) and exerts a pulling force on the counting rod (2).
4. The sample counting device according to claim 3, wherein: when the pressing unit is arranged between the rotating shaft (4) and the counting end (3), the pressing unit adopts a pressure spring; when the pressing unit is arranged on one side of the rotating shaft (4) back to the counting end (3), the pressing unit adopts a tension spring (5); the counting mechanism is characterized in that a stop block (6) located above the counting rod (2) is arranged on the fixing seat (1), and two ends of the pressure spring or the tension spring (5) are connected with the stop block (6) and the counting rod (2) respectively.
5. The sample counting device according to claim 4, wherein: the pressing unit adopts a tension spring (5), the other end of the counting rod (2) opposite to the counting end (3) is provided with a connecting sheet (7), and the tension spring (5) is connected with the connecting sheet (7); the tension spring (5) is used for applying torque to the counting rod (2) and the length of the force arm of the torque applied to the counting rod (2) by the sample rack is larger than that of the force arm of the torque applied to the counting rod (2) by the sample rack.
6. The sample counting device according to claim 1, wherein: the detection unit adopts a detection optocoupler, a travel switch or a microswitch (8).
7. The sample counting device according to claim 1, wherein: the fixing seat (1) is provided with an adjusting block (9) for adjusting the installation position of the detection unit, and the adjusting block (9) is provided with a waist-shaped round hole for adjusting the installation position of the adjusting block.
8. The sample counting device according to claim 1, wherein: the counting end (3) is provided with a roller (10) which is in running fit with the counting end, and the roller (10) is sleeved with a rubber sleeve (11).
9. A sample analyzer, comprising: the sample counting device comprises a sample rack and the sample counting device as claimed in any one of claims 1 to 8, wherein a sample groove (12) for placing a sample container and a counting table (13) matched with the counting end (3) are arranged on the sample rack, the counting table (13) is positioned below the counting end (3) and is pressed and fixed by the counting end (3), and counting grooves (14) or counting bosses matched with the counting end (3) are arranged on the counting table (13) in one-to-one correspondence with the sample groove (13).
10. The sample analyzer of claim 9, wherein: when the counting table (13) is provided with a counting groove (14), the counting groove (14) is arranged right in front of the corresponding sample groove (12); when the counting boss (13) is provided with the counting boss, the counting boss is positioned between two adjacent sample grooves (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121418157.8U CN215449314U (en) | 2021-06-24 | 2021-06-24 | Sample counting device and sample analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121418157.8U CN215449314U (en) | 2021-06-24 | 2021-06-24 | Sample counting device and sample analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215449314U true CN215449314U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121418157.8U Active CN215449314U (en) | 2021-06-24 | 2021-06-24 | Sample counting device and sample analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215449314U (en) |
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2021
- 2021-06-24 CN CN202121418157.8U patent/CN215449314U/en active Active
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