CN211292588U - Optical detection module applied to dry chemical analyzer - Google Patents
Optical detection module applied to dry chemical analyzer Download PDFInfo
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- CN211292588U CN211292588U CN201921017739.8U CN201921017739U CN211292588U CN 211292588 U CN211292588 U CN 211292588U CN 201921017739 U CN201921017739 U CN 201921017739U CN 211292588 U CN211292588 U CN 211292588U
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Abstract
The utility model discloses a be applied to dry-type chemical analysis appearance's optical detection module, include: the device comprises a reagent sheet bracket, a detection circuit board and a reagent sheet; the reagent sheet support comprises an upper layer support, a middle layer sheet, a lower layer base and a window sheet; the detection circuit board is arranged below the lower-layer base, an inserting piece channel is arranged on the reagent piece support, the reagent piece is inserted in the inserting piece channel, and an optical detection channel communicated with the detection circuit board and the reagent piece is arranged in the reagent piece support. The utility model has the advantages that the installation is simple and convenient by arranging the installation groove to install the light-passing plate; the dustproof sealing in the optical detection channel can be realized by arranging the window sheet, components in the optical detection channel can be protected, and the detection result is prevented from being influenced by dust; the utility model discloses a set up the compact heap structure and can guarantee the firm stability after the reagent piece inserts under the prerequisite that does not influence the reagent piece and insert the inserted sheet passageway smoothly.
Description
Technical Field
The utility model relates to a biochemical detection area, in particular to be applied to dry-type chemical analysis appearance's optical detection module.
Background
The dry chemical analyzer is an analyzer for clinical chemical examination using a solid phase carrier reagent, and quantitatively measures the concentration or activity of a specific component in a sample by a reflection photometry, a differential potentiometry or the like. The hand-held dry chemical analyzer is suitable for primary hospitals, clinics and families, and is mainly used for household. The instrument uses a dry reagent sheet as a carrier, and can directly detect the content of related indexes in whole blood, serum and urine. The disease is monitored by detecting relevant indexes, and the diet and the medication of patients are guided. The optical detection module is one of core components, but the existing optical detection module generally has some defects, such as inconvenient installation and matching of each component of the optical detection module, lack of sealing and dust-proof functions, and the like. For example, patents: application number CN201820842463.6, a miniature reflection-type optical detection module, its optical detection module who discloses includes upper cover, reagent piece seat and light through plate, the light through plate is installed on the reagent piece seat from the below, the upper cover is buckled on the reagent piece seat from the top, the mode of reagent piece seat and light through plate components of a whole that can function independently makes the overall structure installation more loaded down with trivial details, and be not convenient for the alignment of installation back subassembly, in addition, light through plate top exposes in the air, influence inside subassembly and testing result easily. Each subassembly adopts the connection of dismantling of post hole mode, then is difficult for the installation if interference fit, and the clearance too big leads to appearing becoming flexible again in the middle of the good back subassembly of installation, influences the use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough among the above-mentioned prior art, provide an optical detection module who is applied to dry-type chemical analysis appearance.
In order to solve the technical problem, the utility model discloses a technical scheme is: an optical detection module for use in a dry chemistry analyzer, comprising: the device comprises a reagent sheet bracket, a detection circuit board and a reagent sheet;
the reagent sheet support comprises an upper layer support, a middle layer sheet, a lower layer base and a window sheet, the upper layer support is buckled on the lower layer base, the middle layer sheet is arranged between the lower layer base and the upper layer support, and the window sheet is covered on the middle layer sheet;
the detection circuit board is arranged below the lower-layer base, an inserting piece channel is arranged on the reagent piece support, the reagent piece is inserted in the inserting piece channel, and an optical detection channel communicated with the detection circuit board and the reagent piece is arranged in the reagent piece support.
Preferably, a mounting groove is formed in the middle of the lower-layer base, a light passing plate is arranged in the mounting groove, a plurality of light passing grooves are formed in the light passing plate at intervals, a light guide block is formed between every two light passing grooves, light guide surfaces are arranged on two sides of the light guide block, and light passing holes are formed in the light guide block in a vertically penetrating mode.
Preferably, the middle layer sheet is arranged in the mounting groove and above the light passing plate, the middle layer sheet is provided with detection through holes corresponding to the light passing holes in number and position, and light blocking protrusions are arranged between every two detection through holes on the bottom surface of the middle layer sheet.
Preferably, the window piece is disposed in the mounting groove and hermetically covers over the middle layer piece.
Preferably, the upper layer support is provided with a slot, the side wall of the upper part of the slot is provided with a baffle, the bottom of the upper layer support is connected with a fixed column, and the lower layer base is provided with a first fixed hole matched with the fixed column; the upper support is buckled on the lower base, the fixing columns are inserted into the first fixing holes in a matched mode, and the inserting piece channel is formed between the baffle and the lower base.
Preferably, the detection circuit board is provided with a second fixing hole for the fixing column to be inserted in a matching manner, and the detection circuit board is further provided with LED lamps of which the positions and the number are matched with the light through grooves and detectors of which the positions and the number are matched with the light through holes.
Preferably, the light passing groove, the light passing hole, the mounting groove and the detection through hole form the optical detection channel;
the light emitted by the LED lamp sequentially passes through the light through groove, the detection through hole and the window sheet and then irradiates on the sample in the reagent sheet, and the light emitted by the sample sequentially passes through the window sheet, the detection through hole and the light through hole and then reaches the detector.
Preferably, the outer wall of the fixing column is provided with a guide groove along the axial direction, and a first positioning hole and a second positioning hole are sequentially arranged in the guide groove from top to bottom.
Preferably, a first groove is formed in the inner wall of the first fixing hole, a first arc-shaped elastic sheet is arranged in the first groove, and the outer end of the first arc-shaped elastic sheet is connected with a first positioning ball which is inserted into the first positioning hole in a matched manner;
and a second groove is formed in the inner wall of the second fixing hole, a second arc-shaped elastic sheet is arranged in the second groove, and the outer end of the second arc-shaped elastic sheet is connected with a second positioning ball which is inserted into the second positioning hole in a matched mode.
Preferably, a third groove is formed in the lower surface of the baffle, and a pressing sheet for pressing the reagent sheet inserted into the insert sheet channel is arranged in the third groove; the first end of the pressing piece is hinged to the inner wall of the third groove, the second end of the pressing piece is connected with the inner wall of the third groove through a spring, the first end of the pressing piece is close to the inlet direction of the inserting piece channel, and the second end of the pressing piece is provided with an inwards concave arc-shaped portion.
The utility model has the advantages that: the utility model has the advantages that the installation is simple and convenient by arranging the installation groove to install the light-passing plate; the dustproof sealing in the optical detection channel can be realized by arranging the window sheet, components in the optical detection channel can be protected, and the detection result is prevented from being influenced by dust; the utility model can realize convenient installation and disassembly of the detection circuit board, the lower layer base and the upper layer bracket and can ensure the firmness and stability after installation by arranging the structures such as the arc-shaped elastic sheet, the positioning ball and the like; the utility model discloses a set up the compact heap structure and can guarantee the firm stability after the reagent piece inserts under the prerequisite that does not influence the reagent piece and insert the inserted sheet passageway smoothly.
Drawings
Fig. 1 is a schematic structural diagram of an optical detection module applied to a dry chemical analyzer according to the present invention;
FIG. 2 is a schematic view of the optical detection module applied to a dry chemical analyzer according to the present invention without a reagent sheet inserted therein;
fig. 3 is a schematic structural view of the optical detection module applied to the dry chemical analyzer after the window sheet is removed;
fig. 4 is an exploded view of an optical detection module of the present invention applied to a dry chemical analyzer;
fig. 5 is a schematic structural view of the upper bracket of the present invention;
fig. 6 is a schematic structural view of the lower base of the present invention;
fig. 7 is a schematic structural view of a middle layer sheet of the present invention;
FIG. 8 is a schematic structural view of the bottom surface of the reagent sheet of the present invention;
fig. 9 is a schematic cross-sectional structural view of an optical detection module applied to a dry chemical analyzer according to the present invention;
fig. 10 is a schematic structural view of the first fixing hole and the second fixing hole of the present invention;
fig. 11 is a schematic cross-sectional structure view of the fixing column of the present invention;
fig. 12 is a top view of the fixing post of the present invention;
fig. 13 is a schematic structural view of the fixing column of the present invention cooperating with the first fixing hole and the second fixing hole;
fig. 14 is a schematic structural view of the compressing plate of the present invention;
fig. 15 is a schematic structural diagram of the cooperation of the compressing sheet and the reagent sheet of the present invention.
Description of reference numerals:
1-reagent sheet holder;
2-upper layer bracket; 20-grooving; 21-a baffle plate; 22-fixed column; 23-a guide groove; 24-a first locating hole; 25-a second positioning hole; 26-third groove; 27-a compression sheet; 28-a spring; 29-an arc;
3-middle layer sheet; 30-detecting the through hole; 31-light blocking projection;
4-lower base; 40, mounting a groove; 41-light passing plate; 42-light-passing groove; 43-a light guide block; 44-a light guide surface; 45-light through hole; 46 — a first fixing hole; 460 — a first recess; 461-first arc-shaped elastic sheet; 462-a first positioning ball;
5, a window sheet;
6, detecting the circuit board; 60-second fixing hole; 61-LED lamps; 62-a detector; 620 — a second recess; 621-a second arc-shaped elastic sheet; 622 — second positioning ball;
7-reagent tablets; 70, opening a hole;
8-insert channel.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 9, an optical detection module applied to a dry chemical analyzer of the present embodiment includes: the device comprises a reagent sheet bracket 1, a detection circuit board 6 and a reagent sheet 7;
the reagent sheet support 1 comprises an upper layer support 2, a middle layer sheet 3, a lower layer base 4 and a window sheet 5, wherein the upper layer support 2 is buckled on the lower layer base 4, the middle layer sheet 3 is arranged between the lower layer base 4 and the upper layer support 2, and the window sheet 5 is covered on the middle layer sheet 3;
the detection circuit board 6 is arranged below the lower-layer base 4, the reagent sheet support 1 is provided with an inserting sheet channel 8, the reagent sheet 7 is inserted into the inserting sheet channel 8, and the reagent sheet support 1 is internally provided with an optical detection channel for communicating the detection circuit board 6 with the reagent sheet 7.
The mounting groove 40 has been seted up at lower floor's base 4 middle part, is provided with logical worn-out fur 41 in the mounting groove 40, leads to worn-out fur 41 and goes up the interval and be provided with a plurality of logical worn-out fur 42, and two liang of logical worn-out fur 42 between be formed with leaded light piece 43, and the both sides of leaded light piece 43 are provided with leaded light face 44, run through from top to bottom in the leaded light piece 43 and have seted up.
The middle layer piece 3 is arranged in the mounting groove 40 and above the light passing plate 41, the middle layer piece 3 is provided with detection through holes 30 the number and the position of which correspond to the light passing holes 45, and a light blocking bulge 31 is arranged between every two detection through holes 30 on the bottom surface of the middle layer piece 3. The light blocking protrusions 31 can reduce light crosstalk between adjacent detection through holes 30.
The window sheet 5 is disposed in the mounting groove 40 and is sealed and covered on the middle sheet 3, and can be sealed by sealant. This way, the window piece 5 is easy to process under the requirement of dimensional accuracy. The window sheet 5 realizes the sealing of the upper part, and the detection circuit board 6 is arranged on the lower part to realize the sealing of the lower part, thereby ensuring the dustproof sealing in the optical detection channel, protecting the components therein and ensuring the accuracy of the detection result.
The upper layer support 2 is provided with a slot 20, the side wall of the upper part of the slot 20 is provided with a baffle 21, the bottom of the upper layer support 2 is connected with a fixed column 22, and the lower layer base 4 is provided with a first fixed hole 46 matched with the fixed column 22; after the upper support 2 is buckled and arranged on the lower base 4, the fixing column 22 is matched and inserted into the first fixing hole 46, and the inserting piece channel 8 is formed between the baffle 21 and the lower base 4.
The detection circuit board 6 is provided with a second fixing hole 60 for the fixing column 22 to be inserted in a matching manner, and the detection circuit board 6 is also provided with LED lamps 61 of which the positions and the number are matched with the light through grooves 42 and detectors 62 of which the positions and the number are matched with the light through holes 45.
The window sheet 5, the upper layer bracket 2, the middle layer sheet 3, the lower layer base 4 and the detection circuit board 6 are sequentially arranged from top to bottom. The lower layer base 4 is arranged at the bottom of the upper layer bracket 2 through the matching of the first fixing hole 46 and the fixing column 22, the middle layer sheet 3 is arranged in the mounting groove 40 on the lower layer base 4 in a matching way, and the window sheet 5 covers the middle layer sheet 3 and is sealed; the detection circuit board 6 is installed at the bottom of the upper layer bracket 2 through the matching of the second fixing hole 60 and the fixing column 22 and is positioned below the lower layer base 4, so that the whole device is simple in installation and matching, high in accuracy and low in requirement on the size accuracy of the window piece 5. After the fixing posts 22 are matched with the fixing holes, the detection circuit board 6, the lower-layer base 4 and the middle-layer sheet 3 can be installed and aligned.
The light-passing groove 42, the light-passing hole 45, the mounting groove 40 and the detection through hole 30 form an optical detection channel; the light emitted by the LED lamp 61 sequentially passes through the light-passing groove 42, the detection through hole 30 and the window sheet 5 and then irradiates on the sample in the reagent sheet 7, and the light emitted by the sample sequentially passes through the window sheet 5, the detection through hole 30 and the light-passing hole 45 and then reaches the detector 62. The bottom of the reagent pad 7 is also provided with a number of openings 70 for the passage of light. In one embodiment, 4 optical detection channels are formed (the number of the light-passing grooves 42, the light-passing holes 45, the detection through holes 30, the LED lamps 61 and the detectors 62 is 4). Each LED lamp 61 can emit light with a specific wavelength to excite different samples on the corresponding reagent sheet 7 to generate fluorescence. The utility model discloses an optics detection module sets up in dry-type chemical analysis appearance, examines time measuring, and reagent piece 7 inserts inserted sheet passageway 8, and LED lamp 61 in each optics detection channel lights in proper order, and the detector 62 that corresponds the passageway detects respectively and obtains fluorescence intensity value. The dry chemical analyzer obtains the concentration value of the measured object on the reagent sheet 7 through analysis and calculation.
In a preferred embodiment, referring to fig. 10-13, a guide groove 23 is axially formed on an outer wall of the fixing post 22, and a first positioning hole 24 and a second positioning hole 25 are sequentially formed in the guide groove 23 from top to bottom.
A first groove 460 is formed in the inner wall of the first fixing hole 46, a first arc-shaped elastic sheet 461 is arranged in the first groove 460, and a first positioning ball 462 which is inserted into the first positioning hole 24 in a matching manner is connected to the outer end of the first arc-shaped elastic sheet 461; a second groove 620 is formed in the inner wall of the second fixing hole 60, a second arc-shaped elastic sheet 621 is disposed in the second groove 620, and the outer end of the second arc-shaped elastic sheet 621 is connected with a second positioning ball 622 for being inserted into the second positioning hole 25 in a matching manner. When the detection circuit board 6, the lower base 4 and the upper bracket 2 are mounted, the first arc-shaped elastic sheet 461 and the second arc-shaped elastic sheet 621 are aligned with the guide groove 23 on the fixing post 22, after the fixing post 22 is inserted into the first fixing hole 46, the first arc-shaped spring piece 461 is extruded with the guide groove 23, after the fixing post 22 is inserted into the second fixing hole 60, the second arc-shaped elastic sheet 621 extrudes the guiding groove 23, when the second arc-shaped elastic sheet is mounted in place, the first positioning ball 462 on the first arc-shaped elastic sheet 461 just pushes into the first positioning hole 24, the second positioning ball 622 on the second arc-shaped elastic sheet 621 just pushes into the second positioning hole 25, thereby guarantee that detection circuit board 6 and lower floor's base 4 are installed in place on fixed column 22, and through the elastic action of first arc shell fragment 461 and second arc shell fragment 621, make its installation back firm more stable, avoid appearing relative movement or dislocation between detection circuit board 6, lower floor's base 4 and the upper strata support 2 in the use. Thereby and realized the dismantlement of each subassembly and connected, can guarantee the firm stability after the installation again. Adopt the dismantlement of post hole mode to be connected between detection circuitry board 6, lower floor's base 4 and the upper support 2, if interference fit then difficult installation and dismantlement, and the clearance too big leads to the installation back subassembly in the middle of appearing not hard up again easily, influences the use, through the setting of above-mentioned arc shell fragment, location ball isotructure, the installation and the dismantlement of each subassembly of can being convenient for can guarantee firm stability after the installation again.
In a preferred embodiment, referring to fig. 14-15, a third groove 26 is formed on the lower surface of the blocking plate 21, and a pressing sheet 27 for pressing the reagent sheet 7 inserted into the sheet inserting channel 8 is arranged in the third groove 26; the first end of the pressing piece 27 is hinged with the inner wall of the third groove 26, the second end of the pressing piece is connected with the inner wall of the third groove 26 through a spring 28, the first end of the pressing piece 27 is close to the inlet direction of the inserting piece channel 8, and the second end of the pressing piece 27 is provided with a concave arc-shaped part 29. As shown in fig. 15, the arc portion 29 is concave to be away from the upper surface of the reagent sheet 7, and the arc portion 29 is configured to prevent the second end of the pressing piece 27 from blocking the upper surface of the reagent sheet 7 too much to affect the extraction of the reagent sheet 7 when the reagent sheet 7 is withdrawn from the insert sheet channel 8. In a further preferred embodiment, the pressing piece 27 is arc-shaped as a whole and has a certain elasticity. When reagent piece 7 inserted into inserted sheet passageway 8 (the direction of insertion is like the arrow direction in fig. 15), reagent piece 7 upper portion upwards extrudees compressing tablet 27, and the reagent piece 7 of being convenient for of arc form inserts smoothly, inserts the back, and the spring action of spring 28 makes compressing tablet 27 extrude reagent piece 7 downwards, and it is more firm to make reagent piece 7 install in inserted sheet passageway 8, prevents that reagent piece 7 from appearing rocking or producing to remove and influence the detection relatively inserted sheet passageway 8 in the use. The arrangement of the structure of the pressing piece 27 can ensure that the reagent piece 7 can be smoothly inserted into the inserting piece channel 8 and the stability of the inserted reagent piece 7 can be ensured.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields where the invention is suitable, and further modifications may readily be made by those skilled in the art, and the invention is therefore not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.
Claims (10)
1. An optical detection module for use in a dry chemistry analyzer, comprising: the device comprises a reagent sheet bracket, a detection circuit board and a reagent sheet;
the reagent sheet support comprises an upper layer support, a middle layer sheet, a lower layer base and a window sheet, the upper layer support is buckled on the lower layer base, the middle layer sheet is arranged between the lower layer base and the upper layer support, and the window sheet is covered on the middle layer sheet;
the detection circuit board is arranged below the lower-layer base, an inserting piece channel is arranged on the reagent sheet support, the reagent sheet is inserted in the inserting piece channel, and an optical detection channel communicated with the detection circuit board and the reagent sheet is arranged in the reagent sheet support.
2. The optical detection module as claimed in claim 1, wherein a mounting groove is formed in the middle of the lower base, a light-passing plate is disposed in the mounting groove, a plurality of light-passing grooves are spaced on the light-passing plate, a light-guiding block is formed between every two light-passing grooves, light-guiding surfaces are disposed on two sides of the light-guiding block, and light-passing holes are formed in the light-guiding block in a vertically penetrating manner.
3. The optical detection module applied to the dry chemical analyzer according to claim 2, wherein the middle layer sheet is disposed in the mounting groove and above the light passing plate, the middle layer sheet is provided with detection through holes corresponding to the light passing holes in number and position, and a light blocking protrusion is disposed between every two detection through holes on the bottom surface of the middle layer sheet.
4. The optical detection module applied to the dry chemical analyzer according to claim 3, wherein the window sheet is disposed in the mounting groove and hermetically covered above the middle layer sheet.
5. The optical detection module as claimed in claim 4, wherein the upper bracket has a slot, a baffle is disposed on the sidewall of the upper portion of the slot, a fixing post is connected to the bottom of the upper bracket, and the lower base has a first fixing hole matching with the fixing post; the upper support is buckled on the lower base, the fixing columns are inserted into the first fixing holes in a matched mode, and the inserting piece channel is formed between the baffle and the lower base.
6. The optical detection module as claimed in claim 5, wherein the detection circuit board has a second fixing hole for the fixing post to be inserted into, and the detection circuit board further has LED lamps and detectors.
7. The optical detection module applied to the dry chemical analyzer according to claim 6, wherein the light passing groove, the light passing hole, the mounting groove and the detection through hole form the optical detection channel;
the light emitted by the LED lamp sequentially passes through the light through groove, the detection through hole and the window sheet and then irradiates on the sample in the reagent sheet, and the light emitted by the sample sequentially passes through the window sheet, the detection through hole and the light through hole and then reaches the detector.
8. The optical detection module as claimed in claim 7, wherein the outer wall of the fixing post has a guide groove along an axial direction, and the guide groove has a first positioning hole and a second positioning hole sequentially arranged from top to bottom.
9. The optical detection module applied to the dry chemical analyzer according to claim 8, wherein a first groove is formed on an inner wall of the first fixing hole, a first arc-shaped elastic piece is arranged in the first groove, and a first positioning ball for being inserted into the first positioning hole in a matching manner is connected to an outer end of the first arc-shaped elastic piece;
and a second groove is formed in the inner wall of the second fixing hole, a second arc-shaped elastic sheet is arranged in the second groove, and the outer end of the second arc-shaped elastic sheet is connected with a second positioning ball which is inserted into the second positioning hole in a matched mode.
10. The optical detection module applied to the dry chemical analyzer according to claim 5, wherein a third groove is formed on the lower surface of the baffle, and a compressing sheet for compressing the reagent sheet inserted into the insert passage is arranged in the third groove; the first end of the pressing piece is hinged to the inner wall of the third groove, the second end of the pressing piece is connected with the inner wall of the third groove through a spring, the first end of the pressing piece is close to the inlet direction of the inserting piece channel, and the second end of the pressing piece is provided with an inwards concave arc-shaped portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017739.8U CN211292588U (en) | 2019-07-02 | 2019-07-02 | Optical detection module applied to dry chemical analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017739.8U CN211292588U (en) | 2019-07-02 | 2019-07-02 | Optical detection module applied to dry chemical analyzer |
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| CN211292588U true CN211292588U (en) | 2020-08-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389118A (en) * | 2019-07-02 | 2019-10-29 | 中国科学院苏州生物医学工程技术研究所 | Optical detecting module applied to dry type chemical analysis instrument |
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2019
- 2019-07-02 CN CN201921017739.8U patent/CN211292588U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389118A (en) * | 2019-07-02 | 2019-10-29 | 中国科学院苏州生物医学工程技术研究所 | Optical detecting module applied to dry type chemical analysis instrument |
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