CN201397287Y - Installation structure of sample analyzer converter - Google Patents
Installation structure of sample analyzer converter Download PDFInfo
- Publication number
- CN201397287Y CN201397287Y CN2009200196331U CN200920019633U CN201397287Y CN 201397287 Y CN201397287 Y CN 201397287Y CN 2009200196331 U CN2009200196331 U CN 2009200196331U CN 200920019633 U CN200920019633 U CN 200920019633U CN 201397287 Y CN201397287 Y CN 201397287Y
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- CN
- China
- Prior art keywords
- converter
- sample analyzer
- mounting structure
- installation
- hole
- 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.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 title abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000003754 machining Methods 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 206010020633 Hyperglobulinaemia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an installation structure of a sample analyzer converter and the installation method thereof. The installation structure of the sample analyzer converter comprises a converter and an installation seat which is jogged with the converter through an embedding and clamping hole and is positioned at the head of a sampler. The embedding and clamping hole is provided with a tapered guide hole at the installation end of the converter. One segment of the embedding and clamping hole matching with the converter is in interference fit with the converter. Correspondingly, the installation seat is made from the material the thermal expansion coefficient of which is similar to the thermal expansion coefficient of the converter. The utility model provides the installation structure of the sample analyzer converter, which has simple structure and high sealing grade and the installation method of the installation structure.
Description
(1) technical field
The utility model relates to a kind of mounting structure of sample analyzer converter, particularly, relates to a kind of mounting structure that is used for the sample analyzer converter of Coulter principle.Ku Ertefa claims electric-resistivity method, electric pulse method or electro-induction district technology again, because of it belongs to the measurement of individual particles and the measurement of three-dimensional, not only can accurately measure the size distribution of material, more can do the measurement of particle absolute number and concentration.
(2) background technology
Individual particles detection range sample analyser commonly used carries out the analysis of number of particles and concentration at present, and said sample analyser is such as the blood analyser of medical domain, generally based on Coulter principle.With the blood analyser is example, its detection head top is provided with converter and detects to be used for number of particles, for the excellent sealing that guarantees that converter cooperates with detection head, need add sealing gasket on described converter two sides usually, with screw it is fastened on the detection head top again and seals.The converter mounting structure of using this mounting means has the comparison excellent sealing ability, yet after long-time the use, be attached with blood tissues such as hyperglobulinemia, azelon in the gap of above-mentioned converter and sealing gasket, and then the micropore that can cause being used to detect on the described converter stops up.And because described micropore is very little, tamper is difficult to wash.Sealing gasket may cause a large amount of molecules to come off because of aging in addition, and the molecule that comes off can influence accuracy of test.In addition, the fastening inherent shortcoming of destroying matrix strength that exists of screw, and each sealing gasket is fixed by at least three gib screws usually, if the screw pretightning force is inhomogeneous, will inevitably cause the distortion of sealing gasket, and can't guarantee the right alignment of converter and counting aperture, and and then cause sealing grade to reduce, cause the measuring chamber leakage.
(3) summary of the invention
Therefore, the utility model provides a kind of simple in structure in order to overcome the above-mentioned defective of available sample analyzer converter mounting structure, the mounting structure of its converter of sample analyser that sealing grade is high, and the installation method of this mounting structure is provided.
The utility model is by the following technical solutions:
The mounting structure of this utility model sample analyzer converter, comprise converter and the mount pad that is positioned at the sampling thief head by the chimeric described converter of embedding folder hole, described embedding folder hole is provided with conical pilot hole at the end of packing into of converter, and is interference fit with converter section of cooperating and converter; Correspondingly, described mount pad adopts the material close with the converter thermal expansivity to make.
The utility model starting point is to solve by the mode of giving up fixing fitting the existing problem of present converter installation method, and known converter mostly is the cylindrical structural of sheet type, the machining precision of self is than higher, whereby, adopt the mode of cooperation really up to the mark to realize the assembling of converter on detection head.
According to the technical solution of the utility model as can be known, owing to abandoned fixing fitting and seal thereof, also, make sampled result have more representativeness with regard to the thorough problem of polluting liquid to be detected because of the aging molecule that produces of seal that solved.On the other hand, do not had fixing fitting, also just needn't corresponding hole be set on the mount pad of converter, detection head intensity is guaranteed.
Specific to interference fit itself, we know that this fit system is used for being fastenedly connected of hole, between centers, not allowing has relative motion between the two, in addition, because the tolerance range in hole is under the tolerance range of axle, therefore, the problem of leakage can be effectively avoided, also now the poorly sealed problem that causes leakage may be caused by the fixing fitting stationary transducer with regard to having solved.On the other hand, the adhesion between two members of formation interference fit is bigger, can be competent at the fixedly tightness requirement in the pattern detection fully.
In addition, consider that because the technical requirement of cooperation really up to the mark is used for the machining precision height of the embedding folder hole machining precision of technical solutions of the utility model than original embedding folder hole, at this, its cost increases from cost.But owing to given up securing member and seal and assembling thereof, whole cost does not increase; On the other hand, its assembly structure is compact more, and this version is more suitable in sample analyser class exact instrument.
Consider that from assembling self in order to obtain to constitute the preferably bond strength of above-mentioned assembly structure under condition of different temperatures, described mount pad adopts the material close with the converter thermal expansivity to make.Mostly present converter is diamond material, and converter is called as the jewel sheet under many circumstances, and its thermal expansivity is known, and the close with it material of thermal expansivity is very many, organic material especially, and selection range is also wide.
To the assembling of two members of above-mentioned interference fit, described embedding folder hole is provided with conical pilot hole at the end of packing into of converter for eaily.The chamfering because converter is not easy to do is so adopt the mode of pilot hole proper.
(4) description of drawings
Specify the utility model below in conjunction with Figure of description, make those skilled in the art better understand the utility model, wherein:
Fig. 1 is a kind of structural representation of the mounting structure of the utility model specific embodiment sample analyzer converter.
Fig. 2 is the structural representation of the used assembling drift of the utility model specific embodiment.
Among the figure: 1, mount pad, 2, converter, 3, groove, 4, the sampling aperture, 5, upper bottom surface, 6, conical pilot hole, 7, the embedding folder hole, 8, bottom surface, 9, positioning convex, 10, the assembling drift.
(5) embodiment
With reference to Figure of description 1 and 2, the mounting structure of present embodiment sample analyzer converter, comprise converter 2 and the mount pad that is positioned at the sampling thief head 1 by embedding folder hole 7 chimeric described converters, described embedding folder hole is provided with conical pilot hole 6 at the end of packing into of converter, and is interference fit with converter section of cooperating and converter; Correspondingly, described mount pad adopts the material close with the converter thermal expansivity to make.
For simplified structure with prevent that liquid flowing speed from producing the bend pipe flow resistance loss, the upper bottom surface 5 of described converter is concordant with the bottom surface of conical pilot hole.
The machining precision of described embedding folder hole is the IT7 level, and the right alignment of itself and described converter is less than 6 μ m.Usually axis hole cooperates desired machining precision generally in IT5～IT8 level, more than the IT7 level, and every increase extra fine grade, cost all will increase by 1～2 times, therefore, and the preferred IT7 level of this programme machining precision, cost is moderate.And because the about 3.5cm of converter diameter, the surfaceness under this precision satisfies the installation accuracy of converter fully in the 1/100mm level.
Consider that converter is thinner, install that the tapering of described conical pilot hole is 1: 1, promptly can reduce the destruction to mount pad intensity, has enough spaces can adjust the degree of freedom of converter again for the ease of it.
The right alignment of described conical pilot hole and described converter makes converter stressed even in installation, and reduces the additional load that produces because of rigging error under its installment state less than 6 μ m, improves its serviceable life.
At the mounting structure of above-mentioned sample analyzer converter, present embodiment adopts the installation method of following sample analyzer converter, and it may further comprise the steps:
1) mount pad 1 is fixing, make its conical pilot hole upwards;
2) pick up converter, and align described conical pilot hole;
3) move down converter to described mount pad upper surface, adjust that it is parallel with mount pad top face;
4) move down converter to the conical pilot hole bottom surface, and make the converter upper bottom surface evenly stressed, the cooperation section that is pressed into the embedding folder hole is until its upper bottom surface and described guiding bellmouth bottom surface coplanar.
The instrument that picks up described converter can adopt vacuum cup routinely, utilizes vacuum cup that the suction of flakelet is finished assembling.
Tend to adopt a bottom surface 8 to have the assembling drift 10 of shape corresponding to the locator protrusions 9 of converter upper grooves 3 for the described instrument present embodiment that picks up converter, wherein said bottom surface is the load-carrying surface of profile less than described converter upper bottom surface; Before picking up converter, need to be coated with adhesive at converter upper bottom surface or assembling drift bottom surface.Can utilize the positioning action of described positioning convex well converter to be carried out assembling and positioning like this, and the bottom surface of assembling drift and the upper bottom surface face contact matching of converter make converter stressed even in assembling process, to obtain reasonable assembly precision.
Because converter belongs to flakelet spare, so described adhesive can make water,, utilize the bonding force of water can adhere to converter fully because the bottom surface and the positioning convex contact area of converter upper bottom surface and groove and assembling drift are big, and the cost of water is low, also is convenient to remove.
Claims (5)
1. the mounting structure of a sample analyzer converter, comprise converter (2) and the mount pad that is positioned at the sampling thief head (1) by the chimeric described converter of embedding folder hole (7), it is characterized in that: described embedding folder hole is provided with conical pilot hole (6) at the end of packing into of converter, and is interference fit with converter section of cooperating and converter; Correspondingly, described mount pad adopts the material close with the converter thermal expansivity to make.
2. the mounting structure of sample analyzer converter according to claim 1, it is characterized in that: the upper bottom surface of described converter (5) is concordant with the bottom surface of conical pilot hole.
3. the mounting structure of sample analyzer converter according to claim 1, it is characterized in that: the machining precision of described embedding folder hole is the IT7 level, and the right alignment of itself and described converter is less than 6 μ m.
4. the mounting structure of sample analyzer converter according to claim 1, it is characterized in that: the tapering of described conical pilot hole is 1: 1.
5. the mounting structure of sample analyzer converter according to claim 1, it is characterized in that: the right alignment of described conical pilot hole and described converter is less than 6 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200196331U CN201397287Y (en) | 2009-03-26 | 2009-03-26 | Installation structure of sample analyzer converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200196331U CN201397287Y (en) | 2009-03-26 | 2009-03-26 | Installation structure of sample analyzer converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397287Y true CN201397287Y (en) | 2010-02-03 |
Family
ID=41619806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200196331U Expired - Fee Related CN201397287Y (en) | 2009-03-26 | 2009-03-26 | Installation structure of sample analyzer converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201397287Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514952B (en) * | 2009-03-26 | 2012-07-04 | 山东兰桥医学科技有限公司 | Installation structure of sample analyzer converter and installing method thereof |
-
2009
- 2009-03-26 CN CN2009200196331U patent/CN201397287Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514952B (en) * | 2009-03-26 | 2012-07-04 | 山东兰桥医学科技有限公司 | Installation structure of sample analyzer converter and installing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20130326 |