CN220231764U - Sample frame transfer mechanism and sample analyzer - Google Patents
Sample frame transfer mechanism and sample analyzer Download PDFInfo
- Publication number
- CN220231764U CN220231764U CN202322174893.9U CN202322174893U CN220231764U CN 220231764 U CN220231764 U CN 220231764U CN 202322174893 U CN202322174893 U CN 202322174893U CN 220231764 U CN220231764 U CN 220231764U
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- bearing
- connecting rod
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- elastic
- pushing
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- 230000007246 mechanism Effects 0.000 title claims abstract description 12
- 238000012546 transfer Methods 0.000 title claims abstract description 12
- 230000007723 transport mechanism Effects 0.000 claims description 14
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000010073 coating (rubber) Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of medical instruments, and provides a sample frame transfer mechanism and a sample analyzer. The moving assembly comprises a connecting block, wherein a guide part and a limiting part are arranged on the connecting block; the pushing assembly comprises a first connecting rod and a first bearing sleeved on the first connecting rod; the elastic limiting assembly comprises an elastic piece, the fixed end of the elastic piece is abutted to the limiting part, and the movable end of the elastic piece is abutted to the first connecting rod so that the first bearing is abutted to the guide part; when the pushing component rotates, the first bearing moves along the guide part so as to drive the moving component to move along the guide piece. The utility model avoids the occurrence of vibration abnormal sound between the first bearing and the guide part in the relative movement process, and in addition, the rolling friction is adopted between the first bearing and the guide part, so that the abrasion speed between the first bearing and the guide part is reduced, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a sample frame transfer mechanism and a sample analyzer.
Background
The push plate in the sample analyzer is moved back and forth at its station to intermittently push the sample rack to a preset position.
In general, a strip-shaped hole is formed in the pushing plate, a rubber coating wheel is in interference fit in the strip-shaped hole, and the pushing plate is pushed to move by driving the rubber coating wheel to slide in the strip-shaped hole. The setting can guarantee that the push plate stably moves, and front and back shaking can not occur. However, as the rubber coating wheel and the strip-shaped hole are in a relative sliding motion state all the time, the friction effect between the rubber coating wheel and the strip-shaped hole is large, so that the abrasion of parts is large, the interference fit between the rubber coating wheel and the strip-shaped hole accelerates the abrasion speed, the service life of the parts is greatly shortened, and the maintenance cost of the sample analyzer is increased.
Stainless steel bearings are also used to mate with the bar-shaped holes to roll instead of slide to reduce friction between the two. However, the two are in clearance fit, which causes shaking between the whole push plate and the bearing, and in addition, the shaking of the motor step by step during the movement process can aggravate the shaking and generate abnormal sound. Another technical disadvantage of this prior art is that the push plate has a run-out distance when the end of travel is retracted, resulting in poor return stroke.
Therefore, a new solution is needed to solve the above problems.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a sample rack transfer mechanism and a sample analyzer, which are used for solving the problem that a push plate cannot stably operate in the prior art.
To achieve the above and other related objects, the present utility model provides a sample rack transport mechanism, specifically configured as follows: the device comprises a bracket, a guide piece connected to the bracket, a moving assembly connected to the guide piece, an elastic limiting assembly connected to the moving assembly and a pushing assembly, wherein the moving assembly comprises a connecting block, and a guide part and a limiting part are arranged on the connecting block; the pushing assembly comprises a first connecting rod; the elastic limiting assembly comprises an elastic piece, the fixed end of the elastic piece is abutted to the limiting part, and the movable end of the elastic piece is abutted to the first connecting rod so that the first connecting rod is abutted to the guide part; when the pushing component rotates, the first connecting rod moves along the guide part so as to drive the moving component to move along the guide piece.
Optionally, the pushing assembly further comprises a spacer, a first bearing and/or a second bearing sleeved on the first connecting rod, the first bearing is located below the second bearing, the first connecting rod is abutted with the guide part through the first bearing, and the movable end of the elastic piece is abutted on the first connecting rod through the second bearing; the spacer is positioned between the first bearing and the second bearing, and two ends of the spacer are respectively abutted against inner rings of the first bearing and the second bearing.
Optionally, a first bar hole is formed in the connecting block, the elastic limiting component is located at one side of the width direction of the first bar hole, and the side wall, away from the elastic limiting component, of the first bar hole is the guide portion.
Optionally, the moving assembly further comprises a push plate, one side of the push plate facing the pushing assembly is connected with the connecting block, a second strip-shaped hole is formed in the push plate, and the second strip-shaped hole and the first strip-shaped hole are correspondingly arranged.
Optionally, a first limiting boss is disposed on a side of the connecting block facing the pushing component, and a side wall, close to the elastic limiting component, of the first limiting boss is the limiting portion.
Optionally, the elastic limiting component further comprises a second connecting rod connected to the connecting block, a second limiting boss is arranged on the second connecting rod, and the elastic piece is sleeved on the second connecting rod and located between the connecting block and the second limiting boss.
Optionally, the pushing assembly further comprises a driving piece and a connecting plate, wherein the fixed end of the connecting plate is connected with the driving end of the driving piece, and the movable end of the connecting plate is connected with the first connecting rod.
Optionally, the moving assembly further comprises a support member, and the push plate is connected with the guide member through the support member.
Optionally, the transfer mechanism further comprises more than one sensor connected to the support, and the moving assembly further comprises an insertion sheet connected to the push plate, and the insertion sheet cooperates with the sensor to determine the current position of the push plate.
The utility model also provides a sample analyzer, which comprises any one of the sample rack transfer mechanisms.
As described above, the sample rack transfer mechanism and the sample analyzer have the following beneficial effects:
through with the stiff end butt of elastic component on spacing portion, the expansion end butt is on the head rod, when pushing the subassembly and rotating, the head rod is because the effort of elastic component all the time with guide portion butt and follow guide portion and remove, has avoided taking place vibrations abnormal sound at relative movement in-process between head rod and the guide portion for pushing the subassembly and moving the in-process steady operation.
Drawings
FIG. 1 is a schematic view showing a sample rack transport mechanism according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a sample rack transport mechanism according to an embodiment of the present utility model, partially in section;
fig. 3 is a schematic structural view of a connection block according to an embodiment of the present utility model.
Description of the reference numerals
1-a bracket;
2-a guide;
3-a moving assembly; 31-connecting blocks; 311-guiding part; 312-limit part; 313-first bar-shaped holes; 314-a first limit boss; 32-pushing plate; 321-a second bar-shaped hole; 33-a support; 34-inserting sheets;
4-an elastic limiting component; 41-an elastic member; 42-a second connecting rod; 421-second limit boss;
5-pushing assembly; 51-a first connecting rod; 511-mounting bosses; 52-a first bearing; 53-a second bearing; 54-spacers; 55-connecting plates; 551-groove;
6-a driving member; 61-driving end;
7-sensor.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.
It should be noted that the illustrations provided in the present embodiment merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated. The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure for the purpose of understanding and reading by those skilled in the art, and are not intended to limit the scope of the utility model, so that any structural modifications, proportional changes, or dimensional adjustments should not be construed as essential to the utility model, but should still fall within the scope of the utility model without affecting the efficacy or achievement of the present utility model. Also, the terms "upper", "lower", "left", "right", "middle" and "a" are used herein for descriptive purposes only and are not intended to limit the scope of the utility model for practical purposes, but rather are intended to cover various modifications or adaptations of the utility model without materially altering the technical scope thereof.
As shown in fig. 1 and 2, some embodiments of the present application provide a sample rack transport mechanism for pushing a sample rack to a preset position, including a rack 1, a guide 2 mounted on the rack 1, a moving assembly 3 mounted on the guide 2, an elastic limiting assembly 4 mounted on the moving assembly 3, and a pushing assembly 5. The moving assembly 3 includes a connecting block 31, and a guiding portion 311 and a limiting portion 312 are disposed on the connecting block 31. The pushing assembly 5 comprises a first connecting rod 51. The elastic limiting assembly 4 includes an elastic member 41, wherein a fixed end of the elastic member 41 abuts against the limiting portion 312, and a movable end of the elastic member 41 abuts against the first connecting rod 51, so that the first connecting rod 51 abuts against the guiding portion 311. When the pushing component 5 rotates, the first connecting rod 51 moves along the guide part 311 to drive the moving component 3 to move along the guide part 2, and the sample rack is pushed to a preset position by the moving component 3, so that vibration abnormal sound between the first connecting rod 51 and the guide part 311 in the relative movement process is avoided, and the pushing component can stably run in the movement process.
The guide 2 may be provided as a linear guide or the like, for example.
Illustratively, the elastic member 41 may be provided as a torsion spring or the like. When the elastic member 41 is a torsion spring, the fixed end and the movable end of the elastic member 41 are two legs paid out by the torsion spring, respectively.
In some embodiments, the first connecting rod 51 is sleeved with a first bearing 52 or a second bearing 53, and the first bearing 52 is located above the second bearing 53. The first bearing 52 is abutted with the guide part 311 of the connecting block 31, and when the first bearing 52 moves along the guide part 311, rolling friction occurs between the first bearing 52 and the guide part 311, so that friction force between the first bearing 52 and the guide part is reduced, abrasion speed between the first bearing and the guide part is reduced, and maintenance cost is reduced. The movable end of the elastic member 41 abuts against the second bearing 53, so that rolling friction is generated between the movable end of the elastic member 41 and the second bearing 53, friction force between the movable end of the elastic member 41 and the second bearing 53 is reduced, abrasion speed between the movable end of the elastic member and the second bearing is reduced, and maintenance cost is reduced. At the same time, the first connecting rod 51 is also subjected to the force of the elastic member 41, so that the first connecting rod 51 or the first bearing 52 abuts against the guide portion 311.
By way of example, the first bearing 52 may be provided as a deep groove ball bearing, a roller bearing, or the like. The second bearing 53 may be provided as a deep groove ball bearing, a roller bearing, or the like.
In other embodiments, the first connecting rod 51 is sleeved with the first bearing 52 and the second bearing 53, and at this time, the first connecting rod 51 is sleeved with the spacer 54, where the spacer 54 is located between the first bearing 52 and the second bearing 53. Both ends of the spacer 54 are respectively abutted on the inner rings of the first bearing 52 and the second bearing 53, so that the spacer 54 does not affect the operations of the first bearing 52 and the second bearing 53, and the first bearing 52 and the second bearing 53 can operate independently of each other.
Illustratively, the spacer 54 is provided as a hollow cylindrical structure through which the first connecting rod 51 extends. The two ends of the cylindrical structure are supporting parts, the supporting parts are respectively abutted on the inner rings of the first bearing 52 and the second bearing 53, and the outer wall of the cylindrical structure outwards extends towards one side of the second bearing 53 to form a convex edge.
Fig. 3 is a schematic block diagram of a connection block shown according to some embodiments of the present application. As shown in fig. 3, in some embodiments, the connection block 31 is provided with a first bar-shaped hole 313, the elastic limiting component 4 is located on one side of the width direction of the first bar-shaped hole 313, a side wall of the first bar-shaped hole 313 away from the elastic limiting component 4 is a guiding portion 311, and the first bearing 52 abuts against the side wall and can move along the side wall.
In some embodiments, a connecting block 31 is connected to a side of the push plate 32 facing the pushing component 5, and a second bar hole 321 is provided on the push plate 32, where the second bar hole 321 is disposed corresponding to the first bar hole 313, and the second bar hole 321 plays a role in yielding a structural member for fixing the first bearing 52 on the first connecting rod 51, so as to ensure that the first bearing 52 can move along the guiding portion 311.
In some embodiments, a side of the connection block 31 facing the pushing component 5 is provided with a first limiting boss 314, a side wall of the first limiting boss 314, which is close to the elastic limiting component 4, is a limiting portion 312, and a fixed end of the elastic member 41 abuts against the side wall to fix the fixed end of the elastic member 41.
In some embodiments, the connecting block 31 is connected with a second connecting rod 42, a second limiting boss 421 is disposed on the second connecting rod 42, and the elastic member 41 is sleeved on the second connecting rod 42 and located between the connecting block 31 and the second limiting boss 421 to limit the elastic member 41.
The second connecting rod 42 may be a sleeve provided with a second limiting boss 421 at one end, which is connected to the connecting block 31 by a screw, for example. The elastic member 41 is sleeved on the outer wall of the sleeve and is located between the connecting block 31 and the second limiting boss 421.
In other exemplary embodiments, the second connecting rod 42 may be provided as a screw whose cap is the second limit boss 421. The screw is in threaded connection with the connecting block 31, and the elastic piece 41 is sleeved on the screw rod and is positioned between the connecting block 31 and the nut.
In some embodiments, the driving end 61 of the driving member 6 is connected to a fixed end of the connection plate 55, and the movable end of the connection plate 55 remote from the driving member 6 is connected to the first connection rod 51. The driving member 6 drives the connecting plate 55 to rotate, and the first connecting rod 51 rotates along with the connecting plate 55, so that the pushing plate 32 is pushed to move to push the sample rack to a preset position.
Specifically, the driving end 61 penetrates through the fixed end of the connecting plate 55, and the driving end 61 is fixed with the connecting plate 55 by installing a jackscrew on the connecting plate 55. The movable end of the connection plate 55 is provided with a groove 551, and one end of the first connection rod 51 is provided with a mounting boss 511, and the mounting boss 511 is embedded into the groove 551 to mount and limit the first connection rod 51.
By way of example, the drive 6 may be provided as a stepper motor, a servo motor or the like.
In some embodiments, the push plate 32 is coupled to the guide 2 by a support 33 to raise the push plate 32 a distance relative to the support 1 to provide longitudinal space for installation of the push assembly 5.
In some embodiments, more than one sensor 7 is mounted on the support 1, and a tab 34 is mounted on the push plate 32, the tab 34 cooperating with the sensor 7 to determine the current position of the push plate 32. The number of the sensors 7 can be 1, 2, 3, etc., and the positions of the sensors 7 are set according to actual requirements, and the positions of the sensors correspond to preset moving points of the push plate 32, such as a start point, an end point, etc., of the stroke of the push plate 32.
The sensor 7 may be provided as a U-shaped photosensor, a proximity switch, or the like, for example.
In summary, according to the sample rack transfer mechanism provided by the utility model, the fixed end of the elastic piece is abutted to the limiting part, the movable end is abutted to the first connecting rod, and when the pushing assembly rotates, the first connecting rod is always abutted to the guiding part and moves along the guiding part due to the acting force of the elastic piece, so that vibration abnormal sound is prevented from occurring between the first connecting rod and the guiding part in the relative movement process, and the pushing assembly stably operates in the movement process.
Some embodiments of the present application further provide a sample analyzer, including the sample rack transfer mechanism described above, where the sample rack transfer mechanism is connected to the sample analyzer through the bracket 1.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. Sample frame transport mechanism, its characterized in that: comprises a bracket, a guide piece connected with the bracket, a moving component connected with the guide piece, an elastic limiting component connected with the moving component and a pushing component,
the moving assembly comprises a connecting block, and a guiding part and a limiting part are arranged on the connecting block;
the pushing assembly comprises a first connecting rod;
the elastic limiting assembly comprises an elastic piece, the fixed end of the elastic piece is abutted to the limiting part, and the movable end of the elastic piece is abutted to the first connecting rod so that the first connecting rod is abutted to the guide part; when the pushing component rotates, the first connecting rod moves along the guide part so as to drive the moving component to move along the guide piece.
2. The sample rack transport mechanism of claim 1, wherein: the pushing assembly further comprises a spacer, a first bearing and/or a second bearing which are sleeved on the first connecting rod, the first bearing is positioned above the second bearing, the first connecting rod is in butt joint with the guide part through the first bearing, and the movable end of the elastic piece is in butt joint with the first connecting rod through the second bearing; the spacer is positioned between the first bearing and the second bearing, and two ends of the spacer are respectively abutted against inner rings of the first bearing and the second bearing.
3. The sample rack transport mechanism of claim 1, wherein: the connecting block is provided with a first bar-shaped hole, the elastic limiting component is located on one side of the width direction of the first bar-shaped hole, and the side wall, away from the elastic limiting component, of the first bar-shaped hole is the guide part.
4. A sample rack transport mechanism as claimed in claim 3, wherein: the movable assembly further comprises a push plate, one side, facing the pushing assembly, of the push plate is connected with the connecting block, a second strip-shaped hole is formed in the push plate, and the second strip-shaped hole and the first strip-shaped hole are correspondingly arranged.
5. A sample rack transport mechanism as claimed in claim 1 or claim 3, wherein: one side of the connecting block, which faces the pushing assembly, is provided with a first limiting boss, and the side wall, which is close to the elastic limiting assembly, of the first limiting boss is the limiting part.
6. The sample rack transport mechanism of claim 1, wherein: the elastic limiting assembly further comprises a second connecting rod connected to the connecting block, a second limiting boss is arranged on the second connecting rod, and the elastic piece is sleeved on the second connecting rod and located between the connecting block and the second limiting boss.
7. The sample rack transport mechanism of claim 1, wherein: the pushing assembly further comprises a driving piece and a connecting plate, wherein the fixed end of the connecting plate is connected with the driving end of the driving piece, and the movable end of the connecting plate is connected with the first connecting rod.
8. The sample rack transport mechanism of claim 4, wherein: the moving assembly further comprises a support member, and the push plate is connected with the guide member through the support member.
9. The sample rack transport mechanism of claim 4, wherein: the transfer mechanism further comprises more than one sensor connected to the support, the moving assembly further comprises an inserting sheet connected to the pushing plate, and the inserting sheet is matched with the sensor to determine the current position of the pushing plate.
10. A sample analyzer, characterized by: the sample analyzer comprising the sample rack transport mechanism of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322174893.9U CN220231764U (en) | 2023-08-11 | 2023-08-11 | Sample frame transfer mechanism and sample analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322174893.9U CN220231764U (en) | 2023-08-11 | 2023-08-11 | Sample frame transfer mechanism and sample analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220231764U true CN220231764U (en) | 2023-12-22 |
Family
ID=89195387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322174893.9U Active CN220231764U (en) | 2023-08-11 | 2023-08-11 | Sample frame transfer mechanism and sample analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220231764U (en) |
-
2023
- 2023-08-11 CN CN202322174893.9U patent/CN220231764U/en active Active
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