CN204772576U - Negative pressure formula reaction tube grabbing device and sample analysis appearance - Google Patents
Negative pressure formula reaction tube grabbing device and sample analysis appearance Download PDFInfo
- Publication number
- CN204772576U CN204772576U CN201520567608.2U CN201520567608U CN204772576U CN 204772576 U CN204772576 U CN 204772576U CN 201520567608 U CN201520567608 U CN 201520567608U CN 204772576 U CN204772576 U CN 204772576U
- Authority
- CN
- China
- Prior art keywords
- reaction tube
- stopper
- grabbing device
- absorption stopper
- absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Manipulator (AREA)
Abstract
The utility model relates to a negative pressure formula reaction tube grabbing device and sample analysis appearance, negative pressure formula reaction tube grabbing device, which comprises a bracket, be provided with the grabbing device who is used for snatching the reaction tube on the support, grabbing device is including absorbing the stopper, the bottom diameter of absorbing the stopper is greater than the internal diameter of reaction tube opening part, the bottom of absorbing the stopper is provided with the air vent, still be provided with the trachea that communicates to the air vent in the absorption stopper, the absorption stopper is run through to the bottom of air vent, tracheal air inlet is connected with the vacuum air pump, with the adoption of the structure, when needs snatch the reaction tube, it breathes in to start the vacuum air pump, reaction tube and absorption stopper bottom formation encapsulated situation under the suction force effect, the inside air of reaction tube this moment is by the suction, form negative pressure, because the inside and outside pressure difference of reaction tube, make it tightly adsorb on absorbing the stopper, the function of reaction tube is snatched in the realization, through snatching of pressure difference realization response pipe, and is simple in structure, the beneficial effect that the reliability is high.
Description
Technical field
The utility model relates to technical field of medical instruments, specifically a kind of suction type reaction tube grabbing device and sample analyser.
Background technology
Along with the development of society, the problem of people to healthy aspect and disease treatment aspect is more and more paid attention to, and how to carry out DE accurately to health and becomes the decisive foundation weighing health status and diagnoses and treatment.
In diagnostic mode, in-vitro diagnosis is detection means important at present, and the diagnosis and treatment especially for diseases such as serious infectious diseases, cancer, diabetes are extremely important, and in-vitro diagnosis is the quantitative detection for disease association trace materials in human body.
For sample analyser, it is the application of sample realized by the space displacement of reaction tube in detection, reagent adding, mixing, the processes such as cleaning and detection, it is one of effective way realizing efficient detection, and reaction tube handgrip is the critical component realizing its space movement, but, in current sample analyser, the mechanical structure that reaction tube handgrip is mainly drive source with electromagnet or motor provides grasp force, its complex structure, operation and maintenance cost is higher, and, its service life and precision are all subject to the restriction of the parts such as spring and motor of its inside, reason is, when sample analyser works, motor is in the state of frequent start-stop always, spring is also by compression stretching frequently, in order to ensure good operating accuracy, need the quality requirement of the parts such as motor and spring high, so, also current sample analyser manufacturing cost is made all costly, what is more important, even adopt, there is the motor and spring that better quality wants, also the situations such as precision reduction can be there is in use for some time in it, directly make grabbing device reliably can not capture reaction tube, and then reduce the accuracy of detection of analyzer, affect follow-up diagnosis result.
So, based on above-mentioned, need one at present badly and namely there is simple structure, reduce and manufacture maintenance cost, reliably can capture reaction tube again, ensure the reaction tube grabbing device of accuracy of detection.
Utility model content
Goal of the invention of the present utility model is, for the problems referred to above that prior art exists, provides a kind of structure simple, manufacture and maintenance cost low, and can the suction type reaction tube grabbing device of Reliable guarantee accuracy of detection.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of suction type reaction tube grabbing device, comprise support, described support is provided with the crawl section for capturing reaction tube, described crawl section comprises absorption stopper, described absorption stopper has an auxiliary section of matching with described reaction tube opening shape, passage is provided with in described absorption stopper, the described auxiliary section of the through described absorption stopper of described passage end, the other end is connected with vacuum negative pressure device, when described absorption stopper coordinates with described reaction tube openend, and when starting described vacuum negative pressure device, described reaction tube closes described passage, negative pressure is formed in the passage of described absorption stopper.
The such scheme of the application, when needs capture reaction tube, first absorption stopper is moved to reaction tube place to coordinate with reaction tube, then vacuum negative pressure device is started, make to form negative pressure in passage, so, reaction tube is drawn on stopper with being pressed under atmospheric pressure, and then the grasping movement of realization response pipe; When needs release reaction pipe, only need stop vacuum negative pressure device, the passage of absorption stopper and external pressure are connected, channel interior negative pressure is eliminated, and reaction tube falls voluntarily, and then the release of realization response pipe.
The application above-mentioned in, reaction tube is captured by negative pressure mode, more traditional motor and spring coordinate the structure providing grasp force, first be that structure is simplified, reduce manufacturing cost and maintenance cost, what is more important, the grasp force of grabbing device is not by motor, the restriction of the parts such as spring, namely, reduce the required precision of the parts such as motor, so also reduce manufacturing cost, and, also just because of the grasp force of grabbing device is not by motor, the restriction of the parts such as spring, make the grabbing device of the application more reliable, and then the reliable crawl reaction tube that can ensure, ensure accuracy of detection.
As the preferred version of the application, when described absorption stopper coordinates with described reaction tube, the passage of described absorption stopper and the inner space of described reaction tube are connected.
The such scheme of the application, when needs capture reaction tube, first absorption stopper is moved to reaction tube place to coordinate with reaction tube, then vacuum negative pressure device is started, make to form negative pressure in the passage of reaction tube and absorption stopper, so, reaction tube is pressed in and draws on stopper under atmospheric pressure, and then the grasping movement of realization response pipe, when needs release reaction pipe, only need vacuum negative pressure device be stopped, reaction tube inner space and external pressure are connected, reaction tube internal negative pressure is eliminated, and falls voluntarily, and then the release of realization response pipe.
As another preferred version of the application, described reaction tube comprises reaction tube body, described reaction tube body is provided with the first protruding part that at least one matches with described absorption stopper, when described absorption stopper coordinates with described reaction tube, described first protruding part closes the passage of described absorption stopper.
In the such scheme of the application, when absorption stopper coordinates with reaction tube, first protruding part closes the passage drawing stopper, that is, when absorption stopper coordinates with reaction tube, when starting vacuum negative pressure device, negative pressure is formed in the channel interior drawing stopper, first protruding part is pressed in be drawn on stopper, and then the crawl realized reaction tube, further, due in this programme, the passage drawing stopper is adjacent to the first protruding part on reaction tube, and do not connect with the inner space of reaction tube, so, carrying out in reaction tube crawl process, avoiding article or volatilization gas in reaction tube is entered in the passage of absorption stopper by absorption, first be ensure that article quality in reaction tube stable, improve accuracy of detection, and for poisonous substance, poisonous substance can also be avoided the pollution of space outerpace, ensure the safety of testing staff.
As further preferred version, when described absorption stopper coordinates with described reaction tube, the openend of reaction tube described in described absorption plug closes, makes the inside of described reaction tube form seal cavity.
Exist at the such scheme of the application, when stopper coordinates with reaction tube, reaction tube passes through its first protruding part and draws coordinating of stopper, realize grasping movement, owing to drawing the openend of plug closes reaction tube, namely, reaction tube is sealed, make, after reaction tube is crawled, move in this process of next position, article in reaction tube can not trickle down reaction tube because of rocking or shake, further ensure that the stable of article quality in reaction tube, further ensure accuracy of detection, improve stability and the reliability of the application's grabbing device.
As the preferred version of the application, described vacuum negative pressure device comprises vacuum air pump and three-way air valve, described three-way air valve includes the first air inlet, the second air inlet and gas outlet, described vacuum air pump is communicated with described first air inlet, the gas outlet of described three-way air valve and the channel connection of described absorption stopper, described second air inlet is communicated with air.In this programme, realize the control of drawing stopper internal channel negative pressure state by three-way air valve, that is, when needs realize grasping movement, by three-way air valve, the passage of vacuum air pump and described absorption stopper is connected; And need release reaction pipe to be by three-way air valve, the inner passage of absorption stopper and air are connected, channel interior negative pressure is discharged, the release of realization response pipe.
As the preferred version of the application, described support is also provided with guide holder, slide in described guide holder and be provided with fairlead, described fairlead one end is provided with for avoiding this end to slip into stops in described guide holder, the outer rim of the other end of described fairlead is provided with the step avoiding this end to slip into described guide holder, elastic component is provided with between described step and described guide holder, described absorption stopper is set in described fairlead, described fairlead is stretched out in the auxiliary section that described absorption stopper matches with described reaction tube opening shape, match with the step of described guide holder in described auxiliary section.
In the such scheme of the application, when carrying out crawl work, draw the passage interior moment forming negative pressure of stopper, reaction tube can produce certain impact to absorption stopper, so, in this programme, take said structure, and elastic component is set, make to draw stopper, when being subject to reaction tube and impacting, provide buffering by elastic component, avoid impulsive force excessive and damaging reaction pipe or grabbing device, improve reliability and the service life of the application's grabbing device further.
As the preferred version of the application, described absorption stopper is obtained by elastomeric material, and the absorption stopper be sheathed in described fairlead coordinates for extruding with between described fairlead.Absorption stopper is set to elastomeric material, because elastomeric material itself has certain deformability, so, make the auxiliary section of drawing stopper and reaction tube when coordinating with reaction tube, draw stopper and between reaction tube, more easily form closed cooperation, also more easily ensure that the first protruding part closes the passage drawing stopper, and then further improve the reliability of the application's grabbing device, simultaneously, because the absorption stopper be sheathed in fairlead coordinates for extruding with between fairlead, that is, the grabbing device of the application, the weight of crawled article needs to be less than or equal to the maximum static friction force drawn between stopper and fairlead, when the weight of crawled article is greater than the maximum static friction force drawn between stopper and fairlead, drawing stopper will from landing in fairlead, so, also just make, can by controlling the size of the maximum static friction force drawn between stopper and fairlead, control the maximum weight of crawled article, avoid crawled Item Weight excessive and damage grabbing device, bend between such as inciting somebody to action or fracture, so, the safety and reliability of further raising the application grabbing device.
As the preferred version of the application, described absorption stopper is obtained by silica gel or rubber.
In this programme, because silica gel and rubber have good deformability, when drawing the auxiliary section of stopper and reaction tube when coordinating with reaction tube, draw stopper and between reaction tube, more easily form closed cooperation, also more easily ensure that the first protruding part closes the passage drawing stopper, and then further improve the reliability of the application's grabbing device.
As another preferred version of the application, described support is also provided with guide holder, described absorption stopper is slidably arranged in described guide holder, one end of described absorption stopper is provided with for avoiding this end to slip into stops in described guide holder, the other end of described absorption stopper is the auxiliary section of matching with described reaction tube opening shape, the outer rim of described auxiliary section being provided with the second protruding part for avoiding auxiliary section to slip into described guide holder, between described second protruding part and described guide holder, being provided with elastic component.
In this programme, draw stopper and be set directly in guide holder, more another kind of scheme, directly eliminates these parts of fairlead, simplifies the structure of the application's grabbing device, reduce cost of manufacture and later maintenance cost.
As the preferred version of the application, described elastic component is buffer spring.
Disclosed herein as well is a kind of sample analyser, it comprises above-mentioned reaction tube grabbing device and/or draws stopper.
compared with prior art, the beneficial effect of the application is:
More traditional motor and spring coordinate the structure providing grasp force, first be that structure is simplified, reduce manufacturing cost and maintenance cost, what is more important, the grasp force of grabbing device is not by the restriction of the parts such as motor, spring, namely, reduce the required precision of the parts such as motor, so also reduce manufacturing cost, and, also just because of the grasp force of grabbing device is not by the restriction of the parts such as motor, spring, make the grabbing device of the application more reliable, and then the reliable crawl reaction tube that can ensure, ensure accuracy of detection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model cross-sectional view;
Fig. 3 is detonation configuration schematic diagram of the present utility model;
Fig. 4 is the structural representation that the utility model crawl section coordinates with reaction tube;
Fig. 5 is the structural representation that the crawl section of another structure of the utility model coordinates with reaction tube;
Fig. 6 is the structural representation of another structure of the utility model;
Fig. 7 is principle level three-way air valve syndeton schematic diagram of the present utility model;
Mark in figure: 1-support, 2-reaction tube, 21-reaction tube body, 22-first protruding part, 3-crawl section, 4-draws stopper, 5-auxiliary section, 6-passage, 7-vacuum negative pressure device, 8-vacuum air pump, 9-three-way air valve, 91-first air inlet, 92-second air inlet, 93-gas outlet, 10-guide holder, 11-fairlead, 12-stops, 13-step, 14-elastic component, 15-second protruding part.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment 1
As Fig. 1, 2, shown in 3, a kind of suction type reaction tube grabbing device, comprise support 1, described support 1 is provided with the crawl section 3 for capturing reaction tube 2, described crawl section 3 comprises draws stopper 4, described absorption stopper 4 has an auxiliary section 5 of matching with described reaction tube 2 opening shape, passage 6 is provided with in described absorption stopper 4, the described auxiliary section 5 of the through described absorption stopper 4 in described passage 6 one end, the other end is connected with vacuum negative pressure device 7, when described absorption stopper 4 coordinates with described reaction tube 2 openend, and when starting described vacuum negative pressure device 7, described reaction tube 2 closes described passage 6, negative pressure is formed in the passage 6 of described absorption stopper 4.
The such scheme of the present embodiment, when needs capture reaction tube 2, first absorption stopper 4 is moved to reaction tube 2 place to coordinate with reaction tube 2, then vacuum negative pressure device 7 is started, make to form negative pressure in passage 6, so, reaction tube 2 is drawn on stopper 4 with being pressed under atmospheric pressure, and then the grasping movement of realization response pipe 2; When needs release reaction pipe 2, only need stop vacuum negative pressure device 7, the passage 6 of absorption stopper 4 is connected with external pressure, and passage 6 internal negative pressure is eliminated, and reaction tube 2 falls voluntarily, and then the release of realization response pipe 2.
The present embodiment above-mentioned in, reaction tube 2 is captured by negative pressure mode, more traditional motor and spring coordinate the structure providing grasp force, first be that structure is simplified, reduce manufacturing cost and maintenance cost, what is more important, the grasp force of grabbing device is not by motor, the restriction of the parts such as spring, namely, reduce the required precision of the parts such as motor, so also reduce manufacturing cost, and, also just because of the grasp force of grabbing device is not by motor, the restriction of the parts such as spring, make the grabbing device of the present embodiment more reliable, and then the reliable crawl reaction tube 2 that can ensure, ensure accuracy of detection.
Embodiment 2
As shown in Figure 1,2,3, 4, suction type reaction tube grabbing device as described in Example 1, when described absorption stopper 4 coordinates with described reaction tube 2, the passage 6 of described absorption stopper 4 is connected with the inner space of described reaction tube 2.
The such scheme of the present embodiment, when needs capture reaction tube 2, first absorption stopper 4 is moved to reaction tube 2 place to coordinate with reaction tube 2, then vacuum negative pressure device 7 is started, make to form negative pressure in the passage 6 of reaction tube 2 and absorption stopper 4, so, reaction tube 2 is pressed in and draws on stopper 4 under atmospheric pressure, and then the grasping movement of realization response pipe 2, when needs release reaction pipe 2, only need stop vacuum negative pressure device 7, reaction tube 2 inner space and external pressure are connected, reaction tube 2 internal negative pressure is eliminated, fall voluntarily, and then the release of realization response pipe 2.
Embodiment 3
As shown in Figure 1,5, suction type reaction tube grabbing device as described in Example 1, described reaction tube 2 comprises reaction tube body 21, described reaction tube body 21 is provided with the first protruding part 22 that at least one matches with described absorption stopper 4, when described absorption stopper 4 coordinates with described reaction tube 2, described first protruding part 22 closes the passage 6 of described absorption stopper 4.
In the such scheme of the present embodiment, when absorption stopper 4 coordinates with reaction tube 2, first protruding part 22 closes the passage 6 drawing stopper 4, that is, when absorption stopper 4 coordinates with reaction tube 2, when starting vacuum negative pressure device 7, negative pressure is formed in passage 6 inside of drawing stopper 4, first protruding part 22 is pressed in be drawn on stopper 4, and then the crawl realized reaction tube 2, further, due in this programme, the passage 6 drawing stopper 4 is adjacent to the first protruding part 22 on reaction tube 2, and do not connect with the inner space of reaction tube 2, so, carrying out in reaction tube 2 crawl process, avoiding article or volatilization gas in reaction tube 2 is entered in the passage 6 of absorption stopper 4 by absorption, first be ensure that article quality in reaction tube 2 stable, improve accuracy of detection, and for poisonous substance, poisonous substance can also be avoided the pollution of space outerpace, ensure the safety of testing staff.
Embodiment 4
As shown in Figure 5, suction type reaction tube grabbing device as described in Example 3, when described absorption stopper 4 coordinates with described reaction tube 2, described absorption stopper 4 closes the openend of described reaction tube 2, makes the inside of described reaction tube 2 form seal cavity.
Exist at the such scheme of the present embodiment, when absorption stopper 4 coordinates with reaction tube 2, reaction tube 2 passes through its first protruding part 22 and draws coordinating of stopper 4, realize grasping movement, owing to drawing the openend of stopper 4 capping pipe 2, namely, reaction tube 2 is sealed, make, after reaction tube 2 is crawled, move in this process of next position, article in reaction tube 2 can not trickle down reaction tube 2 because of rocking or shake, further ensure that the stable of article quality in reaction tube 2, further ensure accuracy of detection, improve stability and the reliability of the present embodiment grabbing device.
Embodiment 5
As shown in figs. 1-7, suction type reaction tube grabbing device as shown in embodiment 1-4, described vacuum negative pressure device 7 comprises vacuum air pump 8 and three-way air valve 9, described three-way air valve 9 includes the first air inlet 91, second air inlet 92 and gas outlet 93, described vacuum air pump 8 is communicated with described first air inlet 91, the gas outlet 93 of described three-way air valve 9 is communicated with the passage 6 of described absorption stopper 4, and described second air inlet 92 is communicated with air.In this programme, realize the control of drawing stopper 4 internal channel 6 negative pressure state by three-way air valve 9, that is, when needs realize grasping movement, by three-way air valve 9, vacuum air pump 8 is connected with the passage 6 of described absorption stopper 4; And need release reaction pipe 2 to be by three-way air valve 9, the inner passage 6 of absorption stopper 4 is connected with air, passage 6 internal negative pressure is discharged, the release of realization response pipe 2.
Embodiment 6
As Figure 1-5, suction type reaction tube grabbing device as shown in embodiment 1-5, described support 1 is also provided with guide holder 10, slide in described guide holder 10 and be provided with fairlead 11, described fairlead 11 one end is provided with for avoiding this end to slip into stops 12 in described guide holder 10, the outer rim of the other end of described fairlead 11 is provided with the step 13 avoiding this end to slip into described guide holder 10, elastic component 14 is provided with between described step 13 and described guide holder 10, described absorption stopper 4 is set in described fairlead 11, described fairlead 11 is stretched out in the auxiliary section 5 that described absorption stopper 4 matches with described reaction tube 2 opening shape, match with the step 13 of described guide holder 10 in described auxiliary section 5.
In the such scheme of the present embodiment, when carrying out crawl work, draw the passage 6 interior moment forming negative pressure of stopper 4, reaction tube 2 can produce certain impact to absorption stopper 4, so, in this programme, take said structure, and elastic component 14 is set, make to draw stopper 4, when being subject to reaction tube 2 and impacting, provide buffering by elastic component 14, avoid impulsive force excessive and damaging reaction pipe 2 or grabbing device, improve reliability and the service life of the present embodiment grabbing device further.
Embodiment 7
As Figure 1-5, suction type reaction tube grabbing device as shown in embodiment 1-6, described absorption stopper 4 is obtained by elastomeric material, and the absorption stopper 4 be sheathed in described fairlead 11 coordinates for extruding with between described fairlead 11, and described absorption stopper 4 is obtained by silica gel or rubber.Absorption stopper 4 is set to elastomeric material, because elastomeric material itself has certain deformability, so, make the auxiliary section 5 of drawing stopper 4 and reaction tube 2 when coordinating with reaction tube 2, draw stopper 4 and between reaction tube 2, more easily form closed cooperation, also more easily ensure that the first protruding part 22 closes the passage 6 drawing stopper 4, and then further improve the reliability of the present embodiment grabbing device, simultaneously, because the absorption stopper 4 be sheathed in fairlead 11 coordinates for extruding with between fairlead 11, that is, the grabbing device of the present embodiment, the weight of crawled article needs to be less than or equal to the maximum static friction force drawn between stopper 4 and fairlead 11, when the weight of crawled article is greater than the maximum static friction force drawn between stopper 4 and fairlead 11, drawing stopper 4 will from landing in fairlead 11, so, also just make, can by controlling the size of the maximum static friction force drawn between stopper 4 and fairlead 11, control the maximum weight of crawled article, avoid crawled Item Weight excessive and damage grabbing device, bend between such as inciting somebody to action or fracture, so, the safety and reliability of further raising the present embodiment grabbing device, because silica gel and rubber have good deformability, when drawing the auxiliary section 5 of stopper 4 and reaction tube 2 when coordinating with reaction tube 2, draw stopper 4 and between reaction tube 2, more easily form closed cooperation, also more easily ensure that the first protruding part 22 closes the passage 6 drawing stopper 4, and then further improve the reliability of the present embodiment grabbing device.
Embodiment 8
As shown in Figure 6, suction type reaction tube grabbing device as shown in embodiment 1-5, described support 1 is also provided with guide holder 10, described absorption stopper 4 is slidably arranged in described guide holder 10, one end of described absorption stopper 4 is provided with for avoiding this end to slip into stops 12 in described guide holder 10, the other end of described absorption stopper 4 is the auxiliary section 5 of matching with described reaction tube 2 opening shape, the outer rim of described auxiliary section 5 is provided with the second protruding part 15 for avoiding auxiliary section 5 to slip into described guide holder 10, elastic component 14 is provided with between described second protruding part 15 and described guide holder 10, described elastic component 14 is buffer spring.
In this programme, draw stopper 4 and be set directly in guide holder 10, more another kind of scheme, directly eliminates these parts of fairlead 11, simplifies the structure of the present embodiment grabbing device, reduce cost of manufacture and later maintenance cost.
Embodiment 9,
A kind of sample analyser, comprises the suction type reaction tube grabbing device as described in embodiment 1-8 any one.
The sample analyser of the present embodiment, owing to have employed the suction type reaction tube grabbing device of above-described embodiment, first be that structure is simplified, reduce manufacturing cost and maintenance cost, what is more important, the grasp force of grabbing device is not by the restriction of the parts such as motor, spring, namely, reduce the required precision of the parts such as motor, so also reduce manufacturing cost, and, also just because of the grasp force of grabbing device is not by the restriction of the parts such as motor, spring, make the sample analyser of the present embodiment more reliable, ensure accuracy of detection.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (12)
1. a suction type reaction tube grabbing device, it is characterized in that, comprise support, described support is provided with the crawl section for capturing reaction tube, described crawl section comprises absorption stopper, described absorption stopper has an auxiliary section of matching with described reaction tube opening shape, passage is provided with in described absorption stopper, the described auxiliary section of the through described absorption stopper of described passage end, the other end is connected with vacuum negative pressure device, when described absorption stopper coordinates with described reaction tube openend, described reaction tube closes described passage, when starting described vacuum negative pressure device, negative pressure is formed in the passage of described absorption stopper.
2. grabbing device according to claim 1, is characterized in that, when described absorption stopper coordinates with described reaction tube, the passage of described absorption stopper and the inner space of described reaction tube are connected.
3. grabbing device according to claim 1, it is characterized in that, described reaction tube comprises reaction tube body, described reaction tube body is provided with the first protruding part that at least one matches with described absorption stopper, when described absorption stopper coordinates with described reaction tube, described first protruding part closes the passage of described absorption stopper.
4. grabbing device according to claim 1, is characterized in that, when described absorption stopper coordinates with described reaction tube, the openend of reaction tube described in described absorption plug closes, makes the inside of described reaction tube form seal cavity.
5. grabbing device according to claim 1, it is characterized in that, described vacuum negative pressure device comprises vacuum air pump and three-way air valve, described three-way air valve includes the first air inlet, the second air inlet and gas outlet, described vacuum air pump is communicated with described first air inlet, the gas outlet of described three-way air valve and the channel connection of described absorption stopper, described second air inlet is communicated with air.
6. the grabbing device according to claim 1-5 any one, it is characterized in that, described support is also provided with guide holder, slide in described guide holder and be provided with fairlead, described fairlead one end is provided with for avoiding this end to slip into stops in described guide holder, the outer rim of the other end of described fairlead is provided with the step avoiding this end to slip into described guide holder, elastic component is provided with between described step and described guide holder, described absorption stopper is set in described fairlead, described fairlead is stretched out in the auxiliary section that described absorption stopper matches with described reaction tube opening shape, match with the step of described guide holder in described auxiliary section.
7. grabbing device according to claim 6, is characterized in that, described absorption stopper is obtained by elastomeric material, and the absorption stopper be sheathed in described fairlead coordinates for extruding with between described fairlead.
8. grabbing device according to claim 6, is characterized in that, described absorption stopper is obtained by silica gel or rubber.
9. grabbing device according to claim 6, is characterized in that, described elastic component is buffer spring.
10. the grabbing device according to claim 1-5 any one, it is characterized in that, described support is also provided with guide holder, described absorption stopper is slidably arranged in described guide holder, one end of described absorption stopper is provided with for avoiding this end to slip into stops in described guide holder, the other end of described absorption stopper is the auxiliary section of matching with described reaction tube opening shape, the outer rim of described auxiliary section is provided with the second protruding part for avoiding auxiliary section to slip into described guide holder, elastic component is provided with between described second protruding part and described guide holder.
11. 1 kinds of reaction tubes matched with grabbing device, it is characterized in that, comprise reaction tube body, described reaction tube body is provided with the first protruding part that at least one matches with absorption stopper, when described absorption stopper coordinates with described reaction tube, described first protruding part closes the passage of described absorption stopper.
12. 1 kinds of sample analysers, is characterized in that, comprise the grabbing device as described in claim 1-11 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520567608.2U CN204772576U (en) | 2015-07-31 | 2015-07-31 | Negative pressure formula reaction tube grabbing device and sample analysis appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520567608.2U CN204772576U (en) | 2015-07-31 | 2015-07-31 | Negative pressure formula reaction tube grabbing device and sample analysis appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204772576U true CN204772576U (en) | 2015-11-18 |
Family
ID=54512701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520567608.2U Active CN204772576U (en) | 2015-07-31 | 2015-07-31 | Negative pressure formula reaction tube grabbing device and sample analysis appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204772576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738814A (en) * | 2021-08-02 | 2021-12-03 | 扬州大学 | Multidirectional damping and buffering device for extracting centrifuge tube in centrifuge and use method thereof |
-
2015
- 2015-07-31 CN CN201520567608.2U patent/CN204772576U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738814A (en) * | 2021-08-02 | 2021-12-03 | 扬州大学 | Multidirectional damping and buffering device for extracting centrifuge tube in centrifuge and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2158926A3 (en) | Aspirator assembly | |
| CN102883754A (en) | Manual vacuum suction device | |
| CN204772576U (en) | Negative pressure formula reaction tube grabbing device and sample analysis appearance | |
| CN107860866A (en) | A kind of Design of Vehicle Tail Gas Analyzer | |
| CN208860829U (en) | A kind of air pollutants detection device | |
| CN201596152U (en) | Hand-held piston sputum suction apparatus | |
| CN211292223U (en) | Novel movable gas collecting and collecting device | |
| CN103190922B (en) | Single use vacuum test tube | |
| CN219886084U (en) | Portable air microorganism detection device | |
| CN211213180U (en) | Blood specimen censorship test tube | |
| CN111811883A (en) | Sample extractor for pharmaceutical experiment | |
| CN213336945U (en) | A quick sampling device for medical science inspection | |
| CN204542231U (en) | A kind of cell sample sampler | |
| CN209595950U (en) | A kind of mouse fixing device for sampling blood | |
| CN209311491U (en) | Common chronic disease wisdom analyzer | |
| CN106075614A (en) | A kind of suction device | |
| CN201533941U (en) | Negative pressure suction type anesthetic tail gas discharge device | |
| CN202516059U (en) | Automatic negative-pressure suction device | |
| CN203234748U (en) | Hemostix with blood entering test tube directly | |
| CN2938095Y (en) | Disposable urine imbibition tester | |
| CN202920208U (en) | Animal blood sampling tube | |
| CN218994675U (en) | Laboratory nitrogen gas detection device | |
| CN204972520U (en) | Injector | |
| CN211675553U (en) | Sputum suction device for internal medicine nursing | |
| CN108671277A (en) | A kind of negative pressure suction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 610000 4 Building 8, two road, Chengdu, Sichuan Patentee after: Mike Medical Electronics Ltd Address before: 611731, No. 1, building 16, Sichuan Road, Chengdu hi tech Development Zone Patentee before: SICHUAN MAKER BIOMEDICAL ELECTRONIC CO., LTD. |
|
| CP03 | Change of name, title or address |