CN219512101U - Portable fluorescence detector and fluorescence detection system using same - Google Patents

Abstract

The utility model discloses a portable fluorescence detector and a fluorescence detection system using the same, and belongs to the technical field of biological detection.

Description

Portable fluorescence detector and fluorescence detection system using same

Technical Field

The utility model relates to the technical field of biological detection, in particular to a portable fluorescence detector and a fluorescence detection system using the same.

Background

Environmental pollution, water source pollution, food safety and the like pose a serious threat to human health. The food contains germs, viruses, toxic compounds and cancerogenic substances, causes the frequent occurrence of infectious events of food-borne pathogenic bacteria which are common to people and livestock and the emergent events of drinking water and food poisoning, and the fluorescent detection of microorganisms and toxic compounds becomes the detection necessary for drinking water, foods and environmental safety, and a detection instrument which has small volume, convenient carrying, sensitive, accurate and fast on-site detection is needed.

The basic principle of the fluorescent immunoassay technology is to combine the sensitivity and testability of fluorescence with the high specificity reaction of antigen body, and use fluorescent substances as markers. Under the excitation action of a specific wavelength, the fluorescent substance can absorb light energy to enter an excited state, and release the light energy absorbed before in an electromagnetic radiation mode to generate fluorescence. The specific fluorescence can be received by a Photodiode (PD) and converted into an electric signal for further processing. The test strip on the test card is provided with a quality control area and a detection area, and fluorescent signals excited in the quality control area and the detection area are required to be processed in the test process so as to obtain complete test data. Products in the current market are all scanned by fixing a test card or by adopting a motor to move a light source system to integrally scan so as to sequentially read fluorescent signals excited in a quality control area and a detection area, so that a test process is completed.

The utility model discloses a portable fluorescence detection device is disclosed to current publication number CN106706572A, comprises test card and miniature fluorescence detection device, miniature fluorescence detection device includes display screen, upper cover, optical head subassembly, guide rail subassembly and lower cover, the test card includes test paper strip and shell, optical head subassembly includes control panel, closing cap, first light path and second light path, the distance between the light source of first light path and the light source of second light path equals the distance between the control area display area and the detection area display area on the test card, after the test card inserts miniature fluorescence detection device, the light source of first light path and the light source of second light path correspond the control area display area and the detection area display area on the test paper strip respectively, and this detection device does not carry out firm fixed to the test card that is detected, and the detection room does not seal and can not detect voluntarily, and the inconvenient and inconvenient outgoing of operation carries.

Disclosure of Invention

The utility model aims to provide a portable fluorescence detector, which solves the problems that a reagent strip in fluorescence detection is easy to fall off and the detection result is easy to be influenced by the outside.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the portable fluorescence detector comprises an upper shell, a lower shell, a fluorescence detection device, a detection chamber and a movable door, wherein the upper shell is arranged on the lower shell, a closed space is formed between the upper shell and the lower shell, the detection chamber is arranged on the bottom surface of the lower shell, the fluorescence detection device is connected above the detection chamber in a sliding manner, one end of the detection chamber is provided with an opening, the movable door is arranged on the side wall of the opening, and the top wall part of the detection chamber is opened to form a detection window;

the detection chamber comprises a detection groove, a barrier strip and an elastic buckle, wherein the detection groove is arranged in the detection chamber, one end of the detection groove is connected with the opening, the barrier strip is arranged on the detection window, the elastic buckle is arranged on the side wall of the detection groove, and the part of the elastic buckle stretches into the detection groove, so that the reagent strip can be stably fixed in the detection groove, and the insertion is convenient and reliable;

the movable door comprises a door body and a torsion spring, the door body is rotationally connected to the side wall of the opening, one end of the torsion spring is abutted against the door body, the other end of the torsion spring is abutted against the lower shell, the detection process can be automatically carried out, the reagent strip is inserted into the detection chamber, the detection chamber is accurately positioned and reliably fixed, the detection chamber is separated from the outer ring, and the success rate of disposable detection is improved.

The bottom surface of one end of the detection groove, which is close to the movable door, is open and is used for guiding the reagent strip to enter the detection groove, so that the operation difficulty is reduced.

The fluorescence detection device comprises a detection head, a sliding frame and a driving device, wherein the detection head is arranged on the sliding frame, the driving device is close to the detection head and arranged on the sliding frame, the sliding frame is connected to the lower shell in a sliding manner, and the fluorescence detection device can automatically move to detect and position the insertion depth of the reagent strip.

The detection head comprises a clamping table, a detection hole and a fluorescence detection sensor, wherein the clamping table is arranged on the carriage, the clamping table is positioned above the detection chamber, the fluorescence detection sensor is arranged between the clamping table and the carriage, the detection hole penetrates through the clamping table and is communicated with the fluorescence detection sensor, and the fluorescence detection sensor can automatically scan the reagent strip.

The fluorescent detection device comprises a detection chamber, a sliding frame, a driving device, a guiding device, a sliding frame, a driving device and a fluorescent detection device.

The guiding device comprises a guiding rod and a rack, the rack is arranged on the bottom surface of the lower shell, the guiding rod is arranged above the rack, the guiding rod and the rack are connected into a ring shape, and the fluorescence detection device is prevented from exceeding a travel range.

Still include the bottom plate, the bottom plate sets up the below of detecting the room, be equipped with the top sheet on the bottom plate, the top sheet stretches into in the detecting the room, improve the reagent strip enters into detect the stability behind the groove.

Still establish the mouth that charges on the bottom plate, the mouth that charges is installed on the bottom plate, the one end of mouth that charges stretches out outside the inferior valve, still be equipped with the battery in the inferior valve, can charge and use also can remove the use, improved portability.

The upper shell further comprises keys and a display screen, wherein the keys are arranged on the upper shell, and the display screen is close to the keys and is convenient for a user to observe results.

The second object of the present utility model is to provide a fluorescence detection system, which solves the problems that the reagent strip is easy to drop and inconvenient to carry during the fluorescence detection.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a fluorescence detection system comprises a portable fluorescence detector and a reagent strip, wherein the reagent strip is detachably connected to the portable fluorescence detector, and can be repeatedly disassembled and assembled to rapidly finish fluorescence detection of a sample.

The beneficial effects of the utility model are as follows:

(1) The portable fluorescence detector is provided with a space sealed by an upper shell and a lower shell, a detection chamber is arranged in the sealed space, a reagent strip can be separated from an external environment after entering the detection chamber, the accuracy of fluorescence detection is prevented from being influenced by external illumination, an opening is arranged in the detection chamber and penetrates through a shell, the reagent strip can be inserted into the detection chamber to carry out fluorescence detection through the opening, a movable door is arranged on the opening, the movable door is sealed when the reagent strip is not inserted, dust is prevented from entering the detection chamber to shield a fluorescence detection device, the movable door is abutted against the reagent strip after the reagent strip is inserted, the reagent strip can be prevented from falling from the detection chamber, the reagent strip can be kept stable during detection, the fluorescence detection device can slide above the detection chamber, the detection area can automatically detect fluorescence of different reagent strips, the use range of the detector is improved, the detector is small and exquisite and whole in size, and is streamline, and is convenient for people to hold, and the use difficulty of human detection operation is reduced.

(2) The utility model provides a portable fluorescence detector's detection room is equipped with blend stop and elasticity knot, can prevent that the reagent strip from entering into the position offset in the detection room, elasticity knot is established on the lateral wall of detection groove, can apply effort to the reagent strip that enters into the detection groove, make the reagent strip be difficult to rock, the detection groove is opened in the below in the opening part, reduce open-ended size, make the reagent strip insert the detection inslot smoothly, be equipped with mobilizable detection head on the fluorescence detection device, the detection head can remove according to the specification difference of reagent strip, still be equipped with the cassette on the fluorescence detection device, the cassette can control the depth that the reagent strip enters into the detection groove, realize detecting the reagent strip of different specifications, drive arrangement on the fluorescence detection device can drive the detection head and remove, realize the automated inspection of reagent strip.

(3) This portable fluorescence detector still is equipped with guider, guider and fluorescence detection device cooperation, the stability and the accuracy that improve fluorescence detection device and remove still are equipped with the top sheet on the bottom plate in addition, can apply pressure to stretching into the indoor reagent strip of detection, improve the firm degree of reagent strip, reagent strip shake reduces disposable detection success rate when preventing to detect, still be equipped with the display screen at the epitheca, can carry out real-time demonstration with the result of detecting, have improved the convenient degree of using this fluorescence detector.

(4) The fluorescence detection system comprises a portable fluorescence detector and a reagent strip, wherein the reagent strip can be rapidly inserted into the fluorescence detector for detection, the inserted reagent strip is stable and reliable, the fluorescence detection can be automatically carried out, the operation is convenient and reliable, and even general personnel can use the fluorescence detection system.

Drawings

FIG. 1 is an exploded view of a portable fluorescence detector provided by the present utility model;

FIG. 2 is an isometric view of a fluorescence detection structure of a portable fluorescence detector according to the present utility model;

FIG. 3 is a front view of a fluorescence detection structure of a portable fluorescence detector according to the present utility model;

FIG. 4 is a top view of a detection structure of a portable fluorescence detector according to the present utility model;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 6 is a combined state diagram of the bottom case and the detection chamber provided by the utility model;

FIG. 7 is an isometric view of a detection chamber of a portable fluorescence detector provided by the present utility model;

FIG. 8 is an isometric view of a fluorescence detection device provided by the present utility model;

FIG. 9 is a front view of a fluorescence detection device provided by the present utility model;

fig. 10 is a cross-sectional view taken along line B-B of fig. 9.

Reference numerals:

1. an upper case; 11. a key; 12. a display screen; 2. a circuit board; 3. a fluorescence detection device; 31. a detection head; 311. a clamping table; 312. a detection hole; 313. a fluorescence detection sensor; 32. a carriage; 33. a driving device; 4. a detection chamber; 41. a detection groove; 42. an opening; 43. a barrier strip; 44. an elastic buckle; 45. a through hole; 46. a detection window; 5. a movable door; 51. a door body; 52. a torsion spring; 6. a bottom plate; 61. a top sheet; 62. a charging port; 7. a lower case; 8. a guide device; 81. a guide rod; 82. a rack; 9. a reagent strip; 91. a display window; 92. a grab handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, based on the examples in the application, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model.

Example 1

As shown in fig. 1-10, a portable fluorescence detector comprises an upper shell 1, a lower shell 7, a fluorescence detection device 3, a detection chamber 4 and a movable door 5, wherein the upper shell 1 is arranged on the lower shell 7, a closed space is formed between the upper shell 1 and the lower shell 7, the detection chamber 4 is arranged on the bottom surface of the lower shell 7, the fluorescence detection device 3 is slidingly connected above the detection chamber 4, one end of the detection chamber 4 is provided with an opening 42, the movable door 5 is arranged on the side wall of the opening 42, the top wall part of the detection chamber 4 is opened to form a detection window 46, the fluorescence detection device 3 detects from the outside of the detection window 46, so that the detection chamber 4 can be kept closed, the detection result is prevented from being disturbed by the external environment, the fluorescence detection device 3 can automatically move, and the detection operation difficulty is reduced;

referring specifically to fig. 7, the detection chamber 4 includes a detection groove 41, a blocking strip 43 and an elastic buckle 44, the detection groove 41 is disposed in the detection chamber 4 and is used for accommodating a part of the reagent strip 9, one end of the detection groove 41 is connected with the opening 42, the blocking strip 43 is disposed on the detection window 46 and limits the reagent strip 9 to prevent the reagent strip 9 from running upwards and deflecting, the elastic buckle 44 is disposed on the side wall of the detection groove 41, a part of the elastic buckle 44 extends into the detection groove 41, the elastic buckle 44 is abutted against the reagent strip 9 entering the detection groove 41 and pushes the reagent strip 9 to one side, and the reagent strip 9 is fixed and positioned to prevent shaking of the reagent strip 9 in the detection process;

the movable door 5 comprises a door body 51 and a torsion spring 52, the door body 51 is rotationally connected to the side wall of the opening 42, one end of the torsion spring 52 is abutted against the door body 51, the other end of the torsion spring 52 is abutted against the lower shell 7, the door body 51 seals the opening 42 under the action of the torsion spring 52, after the reagent strip 9 pushes the door body 51 under the action of external force, the door body 51 rotates to rotate in the detection groove 41, so that the door body 51 keeps in contact with the reagent strip 9, pressure is applied to the reagent strip 9, the reagent strip 9 is prevented from falling off, the detection chamber 4 can be separated from the external environment, the door body 51 immediately seals the detection chamber 4 after the reagent strip 9 is pulled out, and dust is effectively prevented from entering.

Wherein, the upper shell 1 and the lower shell 2 are streamline, and are convenient for a person to hold after being combined into a whole.

Preferably, the bottom surface of the detection groove 41 close to one end of the movable door 5 is open, the area of the opening 42 is enlarged, and the bottom surface of the opening 42 and the bottom surface of the detection groove 41 are provided with inclined surfaces for guiding the reagent strip 9 to smoothly slide into the detection groove 41, so that the manual operation difficulty is reduced.

Further, the fluorescence detection device 3 includes a detection head 31, a carriage 32, and a driving device 33, the detection head 31 is disposed on the carriage 32, the driving device 33 is disposed on the carriage 32 near the detection head 31, and the carriage 32 is slidably connected to the lower case 7, for automatically moving to scan the reagent strip 6 to obtain a detection problem.

Preferably, the detecting head 31 includes a clamping table 311, a detecting hole 312 and a fluorescence detecting sensor 313, the clamping table 311 is arranged on the carriage 32, the clamping table 311 is positioned above the detecting chamber 4, the fluorescence detecting sensor 313 is arranged between the clamping table 311 and the carriage 32, the clamping table 311 can be contacted with the reagent strip 9 for controlling the depth of the reagent strip 9 entering the detecting groove 41, and the detecting hole 312 penetrates through the clamping table 311 to be communicated with the fluorescence detecting sensor 313 to receive a fluorescence signal on the sample.

Preferably, the device further comprises a guiding device 8, the guiding device 8 is arranged on two sides of the detection chamber 4, the sliding frame 32 is slidably connected to the guiding device 8, the guiding device 8 comprises a guiding rod 81 and a rack 82, the rack 82 is arranged on the bottom surface of the lower shell 7, the guiding rod 81 is arranged above the rack 82, the sliding frame 32 is hung on the guiding rod 81, the driving device 33 is a gear motor, the driving device 33 is meshed with the rack 82 on the guiding device 8, the stability and the accuracy of the movement of the detection head 31 are guaranteed, the guiding rod 81 and the rack 82 are connected into a ring shape, the length of the rack 82 is shorter than that of the guiding rod 81, and the detection head 31 is prevented from being misplaced in the movement.

Preferably, the detection device further comprises a bottom plate 6 and a circuit board 2, wherein the bottom plate 6 is arranged below the detection chamber 4, a top sheet 61 is arranged on the bottom plate 6, the top sheet 61 stretches into the detection chamber 4 through a through hole 45 at the bottom of the detection groove 41 and can be abutted against the reagent strip 9 stretching into the detection groove 41, the reagent strip 9 is pushed to move upwards and exert pressure, the reagent strip 9 is kept stable, the circuit board 2 is arranged on the bottom surface of the upper shell 1, the circuit board 2 is electrically connected with a fluorescence detection sensor 313, the fluorescence detection sensor 313 transmits detection signals to the circuit board 2, and the result is displayed on a display screen 12, so that the detection device is convenient for people to read directly.

Wherein, still establish the mouth 62 that charges on the bottom plate 6, the mouth 62 that charges is installed on the bottom plate 6, and the one end of mouth 62 that charges stretches out outside the inferior valve 7, conveniently charges, still is equipped with the battery in the inferior valve 7 for satisfy this fluorescence detector and use in moving, improved the portability of using.

Preferably, the upper shell 1 further comprises a key 11 and a display screen 12, the key 11 is arranged on the upper shell 1, the display screen 12 is arranged close to the key 11, the key 11 is used for starting the detector, and the display screen 12 can directly display the detection result and the detection state, so that the operation and the readout of the result are convenient for people.

Example two

The same features of the reference embodiment are not repeated, and a fluorescence detection system includes a portable fluorescence detector and a reagent strip 9, wherein the reagent strip 9 is detachably connected in the portable fluorescence detector, the reagent strip 9 includes a housing and a test paper installed in the housing, a display window 91 and a handle 92 are arranged on the housing, the display window 91 is aligned with a color development area on the test paper, a test result is obtained by scanning the test paper when a detection head 31 on the fluorescence detection device 3 passes over the display window 91, the handle 92 is positioned in the middle of the reagent strip 9 and is higher than the housing to form a step, after the handle 92 is inserted into the detection groove 41, a clamping table 311 contacts with a side wall of the handle 92, the insertion depth of the reagent strip 9 is limited, and the positions of the clamping tables 311 in the detection groove 41 are used for limiting the fluorescence detection after the reagent strips 9 with different lengths are inserted.

The use process of the fluorescence detection system is as follows:

the reagent strip 9 after sampling is aligned with the opening 42 and inserted into the detection groove 41, the reagent strip 9 pushes the movable door 5, the movable door 5 compresses the reagent strip 9 under the action of elastic force, the reagent strip 9 is compressed from the side face by the elastic buckle 44 after entering the detection groove 41, the top piece 61 applies force to the reagent strip 9 from the bottom face to enable the reagent strip 9 to move downwards to be in contact with the baffle strip 43, the stability of the reagent strip 9 in the detection process is maintained, after the reagent strip 9 is inserted, the button 11 on the upper shell 1 is pressed to start the detector, the fluorescent detection device 3 moves under the drive of the driving device 33, the detection head 31 scans the reagent strip 9, the sample is detected through the display window 91, the scanned result is output to the display screen 12, the detection head 31 resets after the detection is completed, the reagent strip 9 is forcefully pulled out of the detection groove 41, and the automatic detection of the next reagent strip 9 is performed.

Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.

Claims (10)

1. The utility model provides a portable fluorescence detector, includes epitheca (1), inferior valve (7), fluorescence detection device (3), detection room (4) and dodge gate (5), epitheca (1) set up on inferior valve (7), epitheca (1) with form the enclosure space between inferior valve (7), detection room (4) set up on the bottom surface of inferior valve (7), its characterized in that: the fluorescent detection device (3) is slidably connected above the detection chamber (4), an opening (42) is formed in one end of the detection chamber (4), the movable door (5) is arranged on the side wall of the opening (42), and the top wall part of the detection chamber (4) is opened to form a detection window (46);

the detection chamber (4) comprises a detection groove (41), a barrier strip (43) and an elastic buckle (44), wherein the detection groove (41) is arranged in the detection chamber (4), one end of the detection groove (41) is connected with the opening (42), the barrier strip (43) is arranged on the detection window (46), the elastic buckle (44) is arranged on the side wall of the detection groove (41), and part of the elastic buckle (44) stretches into the detection groove (41);

the movable door (5) comprises a door body (51) and a torsion spring (52), the door body (51) is rotatably connected to the side wall of the opening (42), one end of the torsion spring (52) is in interference with the door body (51), and the other end of the torsion spring is in interference with the lower shell (7).

2. The portable fluorescence detector of claim 1, wherein:

the bottom surface of one end of the detection groove (41) close to the movable door (5) is open.

3. The portable fluorescence detector according to any one of claims 1-2, wherein:

the fluorescence detection device (3) comprises a detection head (31), a sliding frame (32) and a driving device (33), wherein the detection head (31) is arranged on the sliding frame (32), the driving device (33) is close to the detection head (31) and arranged on the sliding frame (32), and the sliding frame (32) is connected to the lower shell (7) in a sliding mode.

4. The portable fluorescence detector of claim 3, wherein:

the detection head (31) comprises a clamping table (311), a detection hole (312) and a fluorescence detection sensor (313), wherein the clamping table (311) is arranged on the carriage (32), the clamping table (311) is arranged above the detection chamber (4), the fluorescence detection sensor (313) is arranged between the clamping table (311) and the carriage (32), and the detection hole (312) penetrates through the clamping table (311) and is communicated with the fluorescence detection sensor (313).

5. The portable fluorescence detector of claim 4, wherein:

the device also comprises a guide device (8), wherein the guide device (8) is arranged at two sides of the detection chamber (4), the sliding frame (32) is connected to the guide device (8) in a sliding way, and the driving device (33) is meshed with the guide device (8).

6. The portable fluorescence detector of claim 5, wherein:

the guide device (8) comprises a guide rod (81) and a rack (82), wherein the rack (82) is arranged on the bottom surface of the lower shell (7), the guide rod (81) is arranged above the rack (82), and the guide rod (81) and the rack (82) are connected into a ring shape.

7. The portable fluorescence detector of claim 6, wherein:

the detector further comprises a bottom plate (6), wherein the bottom plate (6) is arranged below the detection chamber (4), a top sheet (61) is arranged on the bottom plate (6), and the top sheet (61) stretches into the detection chamber (4).

8. The portable fluorescence detector of claim 7, wherein:

the charging device is characterized in that a charging port (62) is further formed in the bottom plate (6), the charging port (62) is arranged on the bottom plate (6), one end of the charging port (62) extends out of the lower shell (7), and a battery is further arranged in the lower shell (7).

9. The portable fluorescence detector of claim 8, wherein:

the upper shell (1) further comprises keys (11) and a display screen (12), wherein the keys (11) are arranged on the upper shell (1), and the display screen (12) is arranged close to the keys (11).

10. A fluorescence detection system, characterized by: comprising the portable fluorescence detector according to any of claims 1-9 and a reagent strip (9), said reagent strip (9) being detachably connected in said portable fluorescence detector.