CN220305338U - Flow injection analyzer type sample loading device - Google Patents
Flow injection analyzer type sample loading device Download PDFInfo
- Publication number
- CN220305338U CN220305338U CN202321884792.4U CN202321884792U CN220305338U CN 220305338 U CN220305338 U CN 220305338U CN 202321884792 U CN202321884792 U CN 202321884792U CN 220305338 U CN220305338 U CN 220305338U
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- rotating shaft
- sleeve
- chassis
- loading device
- flow injection
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- 238000004401 flow injection analysis Methods 0.000 title claims abstract description 25
- 238000005070 sampling Methods 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a flow injection analyzer pattern loading device, which comprises a rotating shaft, a bottom plate, a top plate, a second rotation preventing structure and a tightening piece. The utility model provides a flow injection analyzer type loading device, which is characterized in that a bottom plate and a top plate are respectively sleeved on the outer side of a rotating shaft, and the bottom plate and the top plate are mutually parallel and are arranged at intervals. The top disk and the bottom disk can rotate together with the rotating shaft. The sampling needle cylinder is convenient for sucking samples in a plurality of test tubes. The top plate is lapped at the top of the rotating shaft through the limiting plate, and is fixedly arranged on the rotating shaft through threaded connection between the tightening piece and the connecting rod. When the chassis and the top plate which can correspond to the test tube specifications are needed in the later stage, the chassis and the top plate can be pulled out from the rotating shaft and detached only after the tightening piece is detached, so that the operation is convenient, and the chassis and the top plate can be replaced according to the specifications of the test tube in the later stage.
Description
Technical Field
The utility model belongs to the technical field of solution detection equipment, and particularly relates to a flow injection analyzer type sample loading device.
Background
The working principle of the flow injection analyzer is that according to a continuous flow method, pump pipes with different pipe diameters are compressed through peristaltic pumps, and a reaction reagent and a sample to be detected are injected into one according to a proportion: in the closed and continuous flowing current, a color reaction occurs in a chemical reaction unit, a signal value is measured in a detector, and the concentration of a sample to be measured is measured according to a standard curve method. The flow injection analyzer is provided with a loading tray for holding samples, and a plurality of mounting holes for holding test tubes are arranged on the loading tray. However, different sized volumes of test tubes are required to accommodate different reagents during the assay. It is therefore necessary to use different types of loading trays to accomplish the detection of different reagents. However, the loading tray on the current flow injection analyzer is complex in installation form and inconvenient to detach and replace.
Disclosure of Invention
The embodiment of the utility model provides a loading device for a flow injection analyzer, which aims to solve the problem that a loading disc on the flow injection analyzer is inconvenient to detach and replace in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided a flow injection analyser style loading device comprising:
a rotating shaft;
the chassis is sleeved on the rotating shaft, and a first anti-rotation structure for preventing the chassis from rotating on the rotating shaft is arranged between the chassis and the rotating shaft;
the top disc is sleeved on the rotating shaft and is arranged at intervals with the chassis, a connecting rod is installed at the top of the rotating shaft, a limiting plate which can be abutted to the top of the rotating shaft is arranged on the top disc, and the connecting rod penetrates through the limiting plate;
the second anti-rotation structure is arranged between the top disc and the rotating shaft and is used for preventing the top disc from rotating on the rotating shaft;
and the tightening piece is in threaded connection with the connecting rod and is used for fixing the limiting plate to the rotating shaft.
In one possible implementation, the first anti-rotation structure includes:
the positioning disc is arranged at the bottom of the rotating shaft, a positioning block is arranged on the positioning disc in a protruding mode, and a sliding guide hole in sliding fit with the positioning block is formed in the chassis.
In one possible implementation manner, an adjusting washer is further sleeved on the outer side of the rotating shaft, one end of the adjusting washer abuts against the positioning plate, the positioning block is located at the other end of the adjusting washer, and a positioning pin for preventing the adjusting washer from rotating on the rotating shaft is arranged on the positioning plate.
In one possible implementation, the second anti-rotation structure includes:
the sleeve is arranged at the end part of the rotating shaft, the top disc is sleeved on the outer side of the sleeve, and an open slot arranged along the axial direction of the sleeve is formed in the side wall of the sleeve;
and the positioning strip is arranged on the top disc, is in sliding fit with the opening groove and is used for limiting the top disc to rotate on the sleeve.
In one possible implementation manner, an elastic piece is arranged inside the sleeve, and two ends of the elastic piece respectively lean against the limiting plate and the end part of the rotating shaft.
In one possible implementation, the end of the sleeve is also detachably fitted with a cover plate for covering the end of the sleeve.
In one possible implementation, the cover plate is provided with a soft sleeve in sliding fit with the sleeve inner hole.
In one possible implementation manner, the top disc and the bottom disc are both provided with guide sleeves in sliding fit with the rotating shaft, and two ends of each guide sleeve protrude out of the top disc or the bottom disc.
Compared with the prior art, the scheme that this application embodiment shows, through being equipped with the axis of rotation, the axis of rotation is used for being connected with drive assembly's drive end, can drive the axis of rotation through drive assembly and rotate. The application is in the outside of axis of rotation cover chassis and footstock respectively, chassis and footstock are parallel to each other and the interval sets up. And a first rotation preventing structure is arranged between the chassis and the rotating shaft, and a second rotation preventing structure is arranged between the top disc and the rotating shaft. The top disk and the bottom disk can rotate together with the rotating shaft. The sampling needle cylinder is convenient for sucking samples in a plurality of test tubes. The bottom of the rotating shaft is provided with a tray with the outer diameter larger than that of the rotating shaft, the chassis is propped against the tray according to self gravity, the top tray is lapped at the top of the rotating shaft through a limiting plate, and the top tray is fixedly arranged on the rotating shaft through threaded connection between a tightening piece and a connecting rod. When the chassis and the top plate which can correspond to the test tube specifications are needed in the later stage, the chassis and the top plate can be pulled out from the rotating shaft and detached only after the tightening piece is detached, so that the operation is convenient, and the chassis and the top plate can be replaced according to the specifications of the test tube in the later stage.
Drawings
FIG. 1 is a schematic diagram of a loading device for a flow injection analyzer according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a loading device for a flow injection analyzer according to an embodiment of the present utility model;
fig. 3 is an exploded view of a rotary shaft and an adjusting washer according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a rotating shaft; 11. a connecting rod; 12. a positioning plate; 121. a positioning block; 122. a positioning pin; 13. adjusting the gasket; 14. a sleeve; 2. a chassis; 3. a top plate; 31. a limiting plate; 32. a positioning strip; 4. a tightening piece; 5. an elastic member; 6. a cover plate; 61. a soft sleeve; 7. a guide sleeve.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1, 2 and 3, a flow injection analyzer type loading device according to the present utility model will be described. The flow injection analyzer style loading device comprises a rotating shaft 1, a bottom plate 2, a top plate 3, a first rotation preventing structure, a second rotation preventing structure and a tightening piece 4. The chassis 2 is sleeved on the rotating shaft 1, and a first anti-rotation structure for preventing the chassis 2 from rotating on the rotating shaft 1 is arranged between the chassis 2 and the rotating shaft 1; the top disc 3 is sleeved on the rotating shaft 1 and is arranged at intervals with the chassis 2, the top of the rotating shaft 1 is provided with a connecting rod 11, the top disc 3 is provided with a limiting plate 31 which can be abutted against the top of the rotating shaft 1, and the connecting rod 11 penetrates through the limiting plate 31; the second anti-rotation structure is arranged between the top disc 3 and the rotating shaft 1 and is used for preventing the top disc 3 from rotating on the rotating shaft 1; the tightening member 4 is screwed with the connecting rod 11 for fixing the limiting plate 31 to the rotation shaft 1.
Compared with the prior art, the flow injection analyzer type loading device provided by the embodiment is provided with the rotating shaft 1, the rotating shaft 1 is used for being connected with the driving end of the driving assembly, and the rotating shaft 1 can be driven to rotate through the driving assembly. The outer side of the rotating shaft 1 is respectively sleeved with the bottom disc 2 and the top disc 3, and the bottom disc 2 and the top disc 3 are parallel to each other and are arranged at intervals. And a first rotation preventing structure is arranged between the chassis 2 and the rotating shaft 1, and a second rotation preventing structure is arranged between the top plate 3 and the rotating shaft 1. The top plate 3 and the bottom plate 2 can be rotated together with the rotation shaft 1. The sampling needle cylinder is convenient for sucking samples in a plurality of test tubes. The bottom of the rotating shaft 1 is provided with a tray with the outer diameter larger than that of the rotating shaft 1, the chassis 2 is propped against the tray according to self gravity, the top plate 3 is lapped at the top of the rotating shaft 1 through a limiting plate 31, and the top plate 3 is fixedly arranged on the rotating shaft 1 through threaded connection between the tightening piece 4 and the connecting rod 11. When the chassis 2 and the top plate 3 which can correspond to the test tube specifications are needed in the later stage, the chassis 2 and the top plate 3 can be pulled out from the rotating shaft 1 to be detached only after the tightening piece 4 is detached, so that the operation is convenient, and the chassis 2 and the top plate 3 can be replaced according to the specifications of the test tube in the later stage.
Specifically, in this embodiment, the rotation shaft 1 is in driving connection with the driving end of the driving assembly, and the driving assembly adopts the prior art on the flow injection analyzer, which will not be further described herein.
In some embodiments, the first anti-rotation structure may be as shown in fig. 2 and 3. Referring to fig. 2 and 3 together, the first rotation preventing structure includes a positioning plate 12 and a positioning block 121. The positioning plate 12 is arranged at the bottom of the rotating shaft 1, the positioning plate 12 is provided with a positioning block 121 in a protruding mode, and the chassis 2 is provided with a sliding guide hole in sliding fit with the positioning block 121. The outer diameter of the positioning disk 12 is larger than that of the rotating shaft 1, and is fixedly connected with the rotating shaft 1. After the chassis 2 is sleeved on the rotating shaft 1, the chassis 2 can slide downwards according to self gravity, and the guide sliding hole on the chassis 2 is aligned with the positioning block 121 by rotating the chassis 2, so that the positioning block 121 can slide into the guide sliding hole, and the chassis 2 continues to slide downwards according to self gravity until the chassis 2 is abutted against the chassis 2. When the chassis 2 needs to be replaced and detached, the chassis 2 can be detached from the rotating shaft 1 only by pulling the chassis 2 upwards.
Preferably, in the present embodiment, a chamfer is provided on the top of the positioning block 121 to facilitate the sliding of the positioning block 121 into the interior of the slide guiding hole.
In some embodiments, the rotating shaft 1 may have a structure as shown in fig. 2 and 3. Referring to fig. 2 and 3, an adjusting washer 13 is further sleeved on the outer side of the rotating shaft 1, one end of the adjusting washer 13 abuts against the positioning disc 12, the positioning block 121 is located at the other end of the adjusting washer 13, a positioning pin 122 for preventing the adjusting washer 13 from rotating on the rotating shaft 1 is arranged on the positioning disc 12, and the adjusting washer 13 is detachably mounted on the rotating shaft 1. And when the distance between the bottom plate 2 and the top plate 3 needs to be adjusted, the adjusting washers 13 with different lengths can be replaced to adjust the height of the bottom plate 2. And a positioning hole in sliding fit with the positioning pin 122 is provided at one end of the adjustment washer 13. The adjusting washer 13 can be rotated together with the rotation shaft 1 by the engagement of the positioning pin 122 with the positioning hole. And the positioning block 121 is mounted at the other end of the adjusting washer 13, so that the chassis 2 can rotate together with the adjusting washer 13. The base plate 2 and the top plate 3 can be ensured to synchronously rotate.
Preferably, in the present embodiment, the positioning block 121 and the adjusting washer 13 are integrally formed.
In some embodiments, the second anti-rotation structure may be as shown in fig. 2 and 3. Referring also to fig. 2 and 3, the second anti-rotation structure includes the sleeve 14 and the locating bar 32. The sleeve 14 is arranged at the end part of the rotating shaft 1, the top disc 3 is sleeved outside the sleeve 14, and an open slot arranged along the axial direction of the sleeve 14 is arranged on the side wall of the sleeve 14; the positioning strip 32 is installed on the top plate 3 and is in sliding fit with the opening groove, and is used for limiting the rotation of the top plate 3 on the sleeve 14. The sleeve 14 is located at the top end of the rotating shaft 1, and an open groove is provided on the side wall of the sleeve 14, and the opening of the open groove is located at the end of the sleeve 14 away from the rotating shaft 1. When the top plate 3 is mounted on the sleeve 14, the positioning strips 32 on the top plate 3 slide into the open grooves and are in sliding fit with the inner walls of the open grooves, so that the function of preventing the top plate 3 from rotating is achieved. The installation is convenient, and the disassembly of the top disc 3 in the later stage is not influenced.
Preferably, in this embodiment, the sleeve 14 and the rotating shaft 1 are integrally formed. The outer diameter of the sleeve 14 is set equal to the outer diameter of the rotating shaft 1.
In some embodiments, the sleeve 14 may take the configuration shown in FIG. 2. Referring to fig. 2, an elastic member 5 is disposed inside the sleeve 14, and both ends of the elastic member 5 respectively abut against the limiting plate 31 and the end of the rotating shaft 1. The elastic member 5 is a spring, the spring is located inside the sleeve 14, one end of the spring abuts against the end of the rotating shaft 1, and the other end abuts against the limiting plate 31 on the top plate 3. The position of the top disc 3 on the rotating shaft 1 can be determined by adjusting the position of the tightening piece 4, the position of the top disc 3 can be arbitrarily adjusted according to the lengths of test tubes, the height of the top disc 3 can be arbitrarily adjusted according to the lengths of different test tubes, and the stability of placing the test tubes is improved.
Preferably, in the present embodiment, one end of the connecting rod 11 is fixedly installed at the end of the rotation shaft 1 and provided through the elastic member 5.
In some embodiments, the sleeve 14 may take the configuration shown in FIG. 1. Referring to fig. 1, the end of the sleeve 14 is also detachably mounted with a cover plate 6 for covering the end of the sleeve 14. The cover plate 6 is made of polyurethane, is convenient to put into the sleeve 14 through self deformation, and is convenient to fix at the end part of the sleeve 14. The reagent or the liquid to be detected is prevented from flowing into the sleeve 14 and falls to the joint of the tightening piece 4 and the connecting rod 11, so that the service life of the tightening piece 4 is influenced. And the beauty of the joint of the top disc 3 and the rotating shaft 1 can be improved.
In some embodiments, the cover plate 6 may have a structure as shown in fig. 1. Referring to fig. 1, the cover plate 6 is provided with a soft sleeve 61 which is in sliding fit with the bore of the sleeve 14. The inner hole of the soft sleeve 61 is used for avoiding the connecting rod 11 and the tightening piece 4, the outer diameter size of the soft sleeve 61 is slightly larger than the inner hole size of the sleeve 14, and the soft sleeve 61 can be clamped on the inner wall of the sleeve 14 through the elasticity of the soft sleeve 61. And enables a seal to be maintained between the soft sleeve 61 and the inner wall of the sleeve 14. Thereby improving the sealing effect between the cover plate 6 and the sleeve 14.
In some embodiments, the top plate 3 and the bottom plate 2 may have a structure as shown in fig. 2. Referring to fig. 2, the top plate 3 and the bottom plate 2 are respectively provided with a guide sleeve 7 in sliding fit with the rotating shaft 1, and two ends of the guide sleeve 7 are respectively protruded from the top plate 3 or the bottom plate 2. The guide sleeve 7 is in sliding fit with the outer side walls of the rotating shaft 1 and the sleeve 14. A positioning strip 32 is arranged on the inner wall of the guide sleeve 7 on the top disc 3. The end part of the guide sleeve 7 on the chassis 2 is provided with a guide hole which is in sliding fit with the positioning block 121. The both ends protrusion roof plate 3 of uide bushing 7 or chassis 2 set up, on the one hand, and the operating personnel of being convenient for hold, can increase the area of contact of chassis 2 or roof plate 3 and axis of rotation 1 simultaneously, improve the stability of chassis 2 and roof plate 3 installation.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. A flow injection analyzer sample loading device, comprising:
a rotating shaft (1);
the chassis (2) is sleeved on the rotating shaft (1), and a first anti-rotation structure for preventing the chassis (2) from rotating on the rotating shaft (1) is arranged between the chassis (2) and the rotating shaft (1);
the top disc (3) is sleeved on the rotating shaft (1) and is arranged at intervals with the chassis (2), a connecting rod (11) is arranged at the top of the rotating shaft (1), a limiting plate (31) which can be abutted to the top of the rotating shaft (1) is arranged on the top disc (3), and the connecting rod (11) penetrates through the limiting plate (31);
the second anti-rotation structure is arranged between the top disc (3) and the rotating shaft (1) and is used for preventing the top disc (3) from rotating on the rotating shaft (1);
and the tightening piece (4) is in threaded connection with the connecting rod (11) and is used for fixing the limiting plate (31) on the rotating shaft (1).
2. The flow injection analyzer pattern loading device of claim 1, wherein the first anti-rotation structure comprises:
the positioning disc (12) is arranged at the bottom of the rotating shaft (1), a positioning block (121) is arranged on the positioning disc (12) in a protruding mode, and a sliding guide hole which is in sliding fit with the positioning block (121) is formed in the chassis (2).
3. The flow injection analyzer pattern loading device according to claim 2, wherein an adjusting washer (13) is further sleeved on the outer side of the rotating shaft (1), one end of the adjusting washer (13) abuts against the positioning plate (12), the positioning block (121) is located at the other end of the adjusting washer (13), and a positioning pin (122) for preventing the adjusting washer (13) from rotating on the rotating shaft (1) is arranged on the positioning plate (12).
4. The flow injection analyzer pattern loading device of claim 1, wherein the second anti-rotation structure comprises:
the sleeve (14) is arranged at the end part of the rotating shaft (1), the top disc (3) is sleeved on the outer side of the sleeve (14), and an open slot arranged along the axial direction of the sleeve (14) is formed in the side wall of the sleeve (14);
the positioning strip (32) is arranged on the top disc (3) and is in sliding fit with the opening groove, and is used for limiting the top disc (3) to rotate on the sleeve (14).
5. The flow injection analyzer pattern loading device according to claim 4, wherein an elastic member (5) is provided inside the sleeve (14), and both ends of the elastic member (5) are abutted against the limiting plate (31) and the end of the rotating shaft (1), respectively.
6. The flow injection analyser style loading device according to claim 4, wherein the end of the sleeve (14) is further detachably mounted with a cover plate (6) for covering the end of the sleeve (14).
7. A flow injection analyser style loading device according to claim 6, wherein the cover plate (6) is provided with a soft sleeve (61) which is a sliding fit with the bore of the sleeve (14).
8. The flow injection analyzer pattern loading device according to claim 1, wherein guide sleeves (7) which are in sliding fit with the rotating shaft (1) are arranged on the top disc (3) and the bottom disc (2), and two ends of each guide sleeve (7) are protruded out of the top disc (3) or the bottom disc (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321884792.4U CN220305338U (en) | 2023-07-18 | 2023-07-18 | Flow injection analyzer type sample loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321884792.4U CN220305338U (en) | 2023-07-18 | 2023-07-18 | Flow injection analyzer type sample loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220305338U true CN220305338U (en) | 2024-01-05 |
Family
ID=89347042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321884792.4U Active CN220305338U (en) | 2023-07-18 | 2023-07-18 | Flow injection analyzer type sample loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220305338U (en) |
-
2023
- 2023-07-18 CN CN202321884792.4U patent/CN220305338U/en active Active
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