CN219915349U - Optical switching detection device and detection analyzer - Google Patents

Abstract

The utility model belongs to the technical field of detection equipment, and discloses an optical switching detection device and a detection analyzer, wherein the optical switching detection device is arranged in the detection analyzer and comprises a bottom plate, an optical detection assembly, a reagent assembly and a plurality of light source switching assemblies; the optical detection assembly comprises a plurality of detection pieces, and the detection pieces can detect the change of the optical signals; the light source switching assembly comprises a driving mechanism and two light source strips, the two light source strips are respectively arranged on two sides of the detection piece in a sliding mode, a plurality of light sources are arranged on the light source strips at intervals, at least part of light sources have different light emitting wavelengths, the light source strips are all connected with the driving mechanism in a driving mode, and the driving mechanism can drive the two light source strips to be close to or far away from each other so that the detection piece can selectively sense light emitted by the two light sources with the same light emitting wavelength or different light emitting wavelengths; the reagent component comprises a reagent strip, and the light energy emitted by the light source irradiates the sample of the reagent strip and is reflected to the detection piece.

Description

Optical switching detection device and detection analyzer

Technical Field

The utility model relates to the technical field of detection equipment, in particular to an optical switching detection device and a detection analyzer.

Background

The instant detection analyzer is suitable for primary hospitals, clinics and families, mainly home use. For light reflection detection analyzers, a monochromatic light source and a detection device are generally required, and the chemical reaction colors of test papers of different detection items are different, so that different monochromatic light sources are required to be matched with the test papers. However, the existing detection device is generally only provided with the same single-color light source, so that the test paper detection device is only suitable for one detection item, has limited application range, needs to carry multiple types of detection devices when multiple detection items are needed to be carried out simultaneously, increases carrying load, causes serious inconvenience and affects working efficiency.

In the prior art, as disclosed in the patent with publication number CN111380867a, a hand-held dry chemical instrument comprises a housing and an optical detection module arranged in the housing, wherein the optical detection module comprises a detection circuit board arranged in the housing, and a detection unit, a display screen and a reagent sheet bracket arranged on the detection circuit board; the reagent sheet bracket is provided with a reagent sheet slot for inserting the reagent sheet, the detection unit is used for detecting the reagent sheet inserted into the reagent sheet slot, and the display screen is used for displaying the detection result; and the structure is compact and compact, the detection is convenient and quick, the operation is simple and easy, and the device can be well applied to relevant detection in places such as primary hospitals, clinics and families. However, the above structure can only provide a light source with a single wavelength at the same time, and the application range is limited, so that if the index to be detected by the detector does not meet the requirement of the light source with the single wavelength, other instruments are needed to be used, and the convenience of the detection analyzer is reduced.

Therefore, there is a need to design an optical switching detection device and a detection analyzer to solve the above-mentioned problems.

Disclosure of Invention

An object of the present utility model is to provide an optical switching detection device, which can realize the switching of a multi-wavelength light source, is suitable for the detection of various indexes, and has a simple structure and low cost.

To achieve the purpose, the utility model adopts the following technical scheme:

an optical switching detection device provided in a detection analyzer, the optical switching detection device including:

a bottom plate;

the optical detection assembly is arranged on the bottom plate and comprises a plurality of detection pieces, and the detection pieces can detect the change of the optical signals;

the light source switching assemblies are arranged on the optical detection assembly, the light source switching assemblies comprise a driving mechanism and two light source strips, the driving mechanism is arranged on the bottom plate, the two light source strips are respectively arranged on two sides of the detection piece in a sliding mode, a plurality of light sources are arranged on the light source strips at intervals, at least part of the light sources are different in luminous wavelength, the light source strips are in driving connection with the driving mechanism, and the driving mechanism can drive the two light source strips to be close to or far away from each other, so that the detection piece can selectively sense light emitted by two light sources with the same luminous wavelength or light emitted by two light sources with different luminous wavelengths;

and the reagent component is arranged on the optical detection component, the reagent component comprises a reagent strip, and the light energy emitted by the light source irradiates the sample of the reagent strip and is reflected to the detection piece so that the detection piece can detect the change of the light signal.

Optionally, the two light source strips have the same structure, the driving mechanism includes two driving assemblies, the driving assemblies and the light source strips are correspondingly arranged, and an output end of the driving assemblies is connected with the light source strips.

Optionally, the driving assembly includes:

the first driving piece is arranged on the bottom plate;

the input end of the first transmission component is connected with the output end of the first driving piece;

the screw rod is connected to the output end of the first transmission assembly, and the light source strip is connected to the screw rod in a threaded mode.

Optionally, the two light source strips have different structures, the arrangement modes of the light sources on the two light source strips are different, the wavelengths of part of the light sources on each light source strip are different, the output shaft of the driving mechanism is connected with the two light source strips, and the driving mechanism can drive the two light source strips to be close to or far from each other.

Optionally, the driving mechanism includes:

the second driving piece is arranged on the bottom plate;

the input end of the second transmission component is connected with the output end of the second driving piece;

the positive and negative tooth lead screw is connected to the output end of the second transmission assembly, and comprises a positive thread section and a negative thread section, one of the two light source strips is connected with the positive thread section in a threaded manner, the other one of the two light source strips is connected with the negative thread section in a threaded manner, and the light source strips positioned on the positive thread section and the light source strips positioned on the negative thread section can be mutually close to or mutually far away from each other.

Optionally, the driving mechanism and the light source strip are respectively disposed at two sides of the bottom plate, a chute is formed on the bottom plate, a slider is disposed on the light source strip, and the slider is penetrated and slidingly connected to the chute and is in driving connection with the driving mechanism.

Optionally, the reagent assembly includes:

the first bracket is arranged on the bottom plate, the first bracket is provided with a plurality of detection parts and a plurality of light through holes, the detection parts and the light through holes are alternately arranged, the detection parts are arranged in one-to-one correspondence with the detection pieces, the detection parts are covered on the detection pieces, the detection parts are provided with detection holes, the two sides of each detection part are provided with the light through holes, and the light through holes are arranged in one-to-one correspondence with the light source strips;

the second bracket is provided with a plurality of detection through holes, the detection through holes and the detection parts are arranged in a one-to-one correspondence manner, and the second bracket is provided with a mounting sliding rail;

and the reagent strip is connected in the installation sliding rail in a sliding way and is covered on the detection through hole.

Optionally, the detection portion is provided with a light guide chamfer, a light guide channel is formed between the light guide chamfer and a hole wall of the detection through hole, and light energy emitted by the light source irradiates the reagent strip through the light guide channel and is reflected from the reagent strip to pass through the detection hole to the detection piece.

Optionally, the second support is further provided with a plurality of light blocking portions, the light blocking portions are disposed at one end of the second support, which faces the first support, the light blocking portions are disposed on the light passing holes, and the light blocking portions are disposed in one-to-one correspondence with the light passing holes.

Another object of the present utility model is to provide a detection analyzer, which can realize the switching of multi-wavelength light sources, is suitable for the detection of various indexes, and has a simple structure and low cost.

To achieve the purpose, the utility model adopts the following technical scheme:

the detection analyzer comprises a shell, a circuit board arranged in the shell and the optical switching detection device, wherein the detection piece, the light source and the driving mechanism are all electrically connected to the circuit board.

The utility model has the beneficial effects that:

the utility model provides an optical switching detection device and a detection analyzer, when a sample is detected, the sample is only required to be dripped on a reagent strip, a driving mechanism is used for driving a light source strip to slide required light sources to two sides of a detection piece, the light sources emit light, the light emitted by the two light sources irradiates the sample of the reagent strip and then is reflected to the detection piece, and the detection piece is used for detecting the sample, so that a detection result is obtained. The structure is provided with the slidable light source strips, so that the optical switching detection device can realize double-color light detection of different light emitting wavelengths, double-color light detection of the same light emitting wavelength and single-color light detection, the detection range is wide, the detection effect is better, a plurality of light source positions are not needed, the light source strips provided with a plurality of light sources are only arranged on two sides of the detection piece in a sliding manner, the switching of a plurality of detection items can be realized, the structure is simple, a plurality of detection devices are not needed to be carried, the operation is convenient, the efficiency is high, and the cost is low.

Drawings

FIG. 1 is an isometric view of an optical switch detection device according to an embodiment of the present utility model;

FIG. 2 is an isometric view of another view of an optical switch detection device according to an embodiment of the present utility model;

FIG. 3 is an exploded view of an optical switching detection device according to an embodiment of the present utility model;

fig. 4 is a cross-sectional view of an optical switching detection device according to an embodiment of the present utility model.

In the figure:

10. a bottom plate; 11. A chute;

20. an optical detection assembly; 21. A detection plate; 22. A detecting member;

31. a driving mechanism; 311. a second driving member; 312. a second transmission assembly; 3121. a belt wheel; 3122. a synchronous belt; 313. a positive and negative tooth lead screw; 3131. a positive thread segment; 3132. a reverse thread segment;

32. a light source bar; 321. a light source; 33. a slide block; 34. a connecting piece;

40. a reagent assembly; 41. a first bracket; 411. a detection unit; 4111. a detection hole; 4112. light guiding chamfering; 412. a light-transmitting hole; 42. a second bracket; 421. detecting the through hole; 422. installing a sliding rail; 423. a light blocking section; 43. a reagent strip; 44. a light guide channel.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The optical switching detection device and the detection analyzer provided by the utility model are described below with reference to fig. 1 to 4 and the specific embodiments.

The embodiment provides an optical switching detection device, which is arranged in a detection analyzer, can realize the switching of light sources 321 with various wavelengths, is suitable for the detection of various indexes, and has simple structure and low cost.

Specifically, as shown in fig. 1 to 4, the optical switching detection device includes a base plate 10, an optical detection assembly 20, a reagent assembly 40, and a plurality of light source switching assemblies. The optical detection assembly 20 is disposed on the base plate 10, and the optical detection assembly 20 includes a plurality of detection elements 22, where the detection elements 22 can detect a change of an optical signal; the light source switching component is arranged on the optical detection component 20 and can emit light; the reagent assembly 40 is disposed on the optical detection assembly 20, the reagent assembly 40 includes a reagent strip 43, and the light energy emitted by the light source switching assembly irradiates the sample of the reagent strip 43 and is reflected to the detecting member 22, so that the detecting member 22 can detect the change of the light signal, and further the detection of the sample can be realized.

Further, the light source switching assembly includes a driving mechanism 31 and two light source strips 32, the driving mechanism 31 is disposed on the base plate 10, the two light source strips 32 are respectively slidably disposed on two sides of the detecting member 22, a plurality of light sources 321 are disposed on the light source strips 32 at intervals, at least some light sources 321 have different light emission wavelengths, the two light source strips 32 are both connected to the driving mechanism 31 in a driving manner, the driving mechanism 31 can drive the two light source strips 32 to approach or separate from each other, so that the detecting member 22 can selectively sense light emitted by the two light sources 321 with the same light emission wavelength, or light emitted by the two light sources 321 with different light emission wavelengths. The structure can realize the detection of the sample by the light emitted by the two light sources 321 with the same light emission wavelength and the detection of the sample by the light emitted by the two light sources 321 with different light emission wavelengths, and can realize the multiple combination of the light sources 321 with different light emission wavelengths, so that the optical switching detection device is adapted to multiple detection items, the adaptability of the optical switching detection device is improved, and the same equipment detection of the multiple detection items can be satisfied.

When the optical switching detection device of the embodiment detects a sample, the sample is only required to be dripped on the reagent strip 43, the driving mechanism 31 drives the light source strip 32 to slide the required light sources 321 to the two sides of the detection piece 22, the light sources 321 emit light, the light emitted by the two light sources 321 irradiates the sample of the reagent strip 43, and then the light is reflected to the detection piece 22, and the detection piece 22 detects the sample, thereby obtaining a detection result. The structure is provided with the slidable light source strips 32, so that the optical switching detection device can realize double-color light detection of different light emitting wavelengths, double-color light detection of the same light emitting wavelength and single-color light detection, the detection range is wide, the detection effect is better, the detection effect is not required to be provided with a plurality of light source 321 positions, the light source strips 32 provided with a plurality of light sources 321 are only arranged on two sides of the detection piece 22 in a sliding manner, the switching of a plurality of detection items can be realized, the structure is simple, the carrying of a plurality of detection devices is not required, the operation is convenient, the efficiency is high, and the cost is low.

In this embodiment, as shown in fig. 1 to 3, the light source bar 32 has a T-shaped structure, and the light source bar 32 includes a fixing portion and a light source portion, wherein the fixing portion is used for connecting with a driving assembly, and a plurality of light sources 321 are disposed on the light source portion.

Further, the light source bar 32 is provided with a slider 33, and the fixing portion is fixed to the slider 33, and the slider 33 is drivingly connected to the driving mechanism 31, so that the driving mechanism 31 can drive the light source bar 32.

Optionally, the driving mechanism 31 and the light source strip 32 are respectively arranged at two sides of the bottom plate 10, the bottom plate 10 is provided with the sliding groove 11, the sliding block 33 is arranged in a penetrating manner and is connected with the sliding groove 11 in a sliding manner, and is connected with the driving mechanism 31 in a driving manner, the sliding block 33 and the sliding groove 11 are connected in a sliding manner, so that the light source strip 32 has a guiding and limiting effect, and the phenomenon that a sliding track is yawed in the sliding process of the light source strip 32 is avoided.

Still further, the detecting member 22 and the light source switching assembly are provided in plural numbers, so as to realize that the optical switching detecting device detects plural samples simultaneously. In this embodiment, the number of the detecting members 22 is 5, the number of the light source switching assemblies is 3, so that the condition that the light source strips 32 are arranged at both ends of each detecting member 22 can be satisfied, and a plurality of samples can be detected at the same time.

Optionally, the light source switching assembly further includes two connecting pieces 34, the light source switching assembly is provided with a plurality of light source strips 32 on the same side, the connecting pieces 34 are arranged on the sliding blocks 33, and further driving of the plurality of light source strips 32 can be achieved through driving the connecting pieces 34.

Further alternatively, the number of the sliding grooves 11 may be adaptively set according to the number of the light source strips 32 on the same side, so that the guiding and limiting effects on the plurality of light source strips 32 may be ensured, which is not particularly limited herein.

Optionally, the light source 321 is an LED lamp, which has the advantages of high efficiency, energy saving, long service life and no radiation.

Illustratively, the light sources 321 on both sides of the sensing element 22 emit light at the same wavelength, e.g., LED1-LED1, LED2-LED2, … …, LEDn-LEDn. In this way, the two LEDs on both sides of the same detecting element 22 are controlled to be turned on and off simultaneously, so as to collect the reflected light signal, thus obtaining a stronger illumination signal, improving the detection sensitivity of the reflected light, and realizing excitation of a stronger fluorescent signal.

Illustratively, the light sources 321 on both sides of the detecting member 22 have different light emission wavelengths, such as LED1-LED2, LED1-LEDn, LED2-LED3, … …, and LED2-LEDn. In this way, if one light source 321 can excite the fluorescence of the reagent strip 43, the signal detected by the detecting element 22 is S1, the other light source 321 cannot excite the fluorescence, the signal detected by the detecting element 22 is S2, the reflected light of the reagent strip 43 is a noise signal, and the final fluorescence signal is S1-S2, so as to realize the detection of the type described above for the detecting element 22.

In order to achieve the effect that the light source 321 is switched to the same wavelength and different wavelengths, in an alternative embodiment, the two light source strips 32 are identical in structure, so that the manufacturing cost can be reduced; the driving mechanism 31 includes two driving components (not shown in the figure), the driving components and the light source strips 32 are correspondingly arranged, and the output ends of the driving components are connected to the light source strips 32. The driving of the two driving components can be controlled to realize that the two light source strips 32 respectively drive the required light sources 321 to the two sides of the detecting piece 22, so that the light sources 321 with different light emitting wavelengths or the light sources 321 with the same light emitting wavelength can be moved to the two sides of the detecting piece 22, the sample is irradiated by the light sources 321, and the optical switching detection device can further realize the switching detection of a plurality of detection items.

Specifically, the driving assembly comprises a first driving piece, a first transmission assembly and a screw rod, wherein the first driving piece is arranged on the bottom plate 10; the input end of the first transmission component is connected with the output end of the first driving piece; the lead screw is connected to the output end of the first transmission assembly, and the light source bar 32 is screwed to the lead screw. The first driving member drives the first transmission assembly to move so as to drive the screw rod to rotate, and further, the light source strip 32 performs reciprocating linear motion.

Further, the first transmission assembly comprises two transmission wheels and a transmission belt sleeved with the two transmission wheels, the transmission belt is tensioned by the two transmission wheels, one transmission wheel is connected to the output end of the first driving piece, and the other transmission wheel is connected to the screw rod, so that the transmission effect of the first transmission assembly can be achieved.

Still further, the light emitting wavelengths of all the light sources 321 on the light source strips 32 are different, so that the length of the light source strips 32 is reduced, and the random combination of a plurality of light sources 321 on two light source strips 32 is satisfied, thereby realizing the detection of a plurality of detection items of the optical switching detection device.

In another alternative embodiment, as shown in fig. 1 and 2, the two light source strips 32 are different in structure, the light sources 321 on the two light source strips 32 are arranged in different manners, the output shaft of the driving mechanism 31 is connected to the two light source strips 32, and the driving mechanism 31 can drive the two light source strips 32 to be close to or far from each other. The two light source strips 32 are driven to synchronously move by the driving mechanism 31, so that the light sources 321 on the two sides of the detection piece 22 are switched, the arrangement modes of the light sources 321 on the two light source strips 32 are different, the random combination of the light sources 321 can be met, and the detection of a plurality of detection items of the optical switching detection device is realized. Alternatively, part of the wavelengths of the light sources 321 of the two light source strips 32 are different, and the other part of the wavelengths are the same, so as to realize dual-color light detection of different light emission wavelengths, dual-color light detection of the same light emission wavelength and single-color light detection.

The structure can realize that the light sources 321 with different light emitting wavelengths or the light sources 321 with the same light emitting wavelength move to the two sides of the detection piece 22, and the sample is irradiated by the light sources 321, so that the optical switching detection device can realize the switching detection of a plurality of detection items. In addition, as the two light source strips 32 adopt the same driving mechanism 31, the operation is stable, the coordination is good, and the space is saved.

Specifically, the driving mechanism 31 includes a second driving member 311, a second transmission assembly 312, and a positive and negative screw 313, where the second driving member 311 is disposed on the base plate 10; the input end of the second transmission assembly 312 is connected to the output end of the second driving piece 311; the positive and negative screw 313 is connected to the output end of the second transmission assembly 312, the positive and negative screw 313 includes a positive thread segment 3131 and a negative thread segment 3132, one of the two light source strips 32 is screwed to the positive thread segment 3131, the other is screwed to the negative thread segment 3132, and the light source strips 32 located in the positive thread segment 3131 and the light source strips 32 located in the negative thread segment 3132 can be close to each other or far away from each other. Through the above structure, the second driving member 311 drives the second transmission assembly 312 to move, and drives the positive and negative screw 313 to move, so that the light source strips 32 located in the positive screw section 3131 and the light source strips 32 located in the negative screw section 3132 can be close to each other or far away from each other, and switching of a plurality of light source 321 combinations can be achieved, and switching of a plurality of detection items can be achieved.

Further, the second transmission assembly 312 includes two pulleys 3121 and a timing belt 3122 sleeved on the two pulleys 3121, and the timing belt 3122 is commonly tensioned by the two pulleys 3121, wherein one pulley 3121 is connected to the output end of the second driving member 311, and the other pulley 3121 is connected to the screw rod, so as to achieve the transmission effect of the second transmission assembly 312.

In this embodiment, the optical detection assembly 20 includes a detection plate 21 and detection members 22, a plurality of detection members 22 are disposed on the detection plate 21, the detection plate 21 and the light source strips 32 are vertically disposed, and the light source strips 32 are slidably disposed on two sides of the detection members 22.

Alternatively, the detecting member 22 may be any one of a multispectral photoelectric sensor, a color sensor, a CCD/CMOS image sensor, and a micro spectrometer, and the type may be specifically selected according to practical situations. Preferably, the detecting member 22 in this embodiment is a multispectral photoelectric sensor, so as to detect signals of different wavelengths of light, for example, fluorescence, long afterglow luminescence, up-conversion luminescence, and the like.

In this embodiment, as shown in fig. 3 and 4, the reagent pack 40 includes a first holder 41, a second holder 42, and a reagent strip 43. The first bracket 41 is disposed on the bottom plate 10, the first bracket 41 is provided with a plurality of detection portions 411 and a plurality of light-passing holes 412, the detection portions 411 and the light-passing holes 412 are alternately disposed, the detection portions 411 are disposed in one-to-one correspondence with the detection pieces 22, the detection portions 411 are covered on the detection pieces 22, the detection portions 411 are provided with detection holes 4111, two sides of each detection portion 411 are respectively provided with a light-passing hole 412, and the light-passing holes 412 are disposed in one-to-one correspondence with the light source strips 32; namely, the detecting member 22 and the light source 321 are arranged in a split manner, and only the light emitted by the light source 321 can be irradiated to the reagent assembly 40 through the light passing hole 412 and then reflected to the detecting member 22 through the detecting hole 4111, so that the reliability of the detecting result of the detecting member 22 is improved.

Further, the second support 42 is provided with a plurality of detection through holes 421, the detection through holes 421 and the detection parts 411 are arranged in a one-to-one correspondence, the second support 42 is provided with a mounting slide rail 422, and the reagent strip 43 is slidably connected in the mounting slide rail 422 and covers the detection through holes 421. Through setting up the detection through-hole 421 for the light that light source 321 sent can pass through the light through-hole 412 after shining the sample department of reagent strip 43 through detection through-hole 421, again with the light reflection of its reflection on detecting piece 22, can satisfy the detection to the sample.

Optionally, the detecting portion 411 is provided with a light guiding chamfer 4112, a light guiding channel 44 is formed between the light guiding chamfer 4112 and a hole wall of the detecting through hole 421, light energy emitted by the light source 321 irradiates the reagent strip 43 through the light guiding channel 44 and is reflected from the reagent strip 43 to the detecting member 22 through the detecting hole 4111, the light source 321 can smoothly enter the detecting through hole 421 and find the detecting member 22 due to the arrangement of the light guiding chamfer 4112, and most of reflected light enters the detecting hole 4111, so that the reliability of detecting the detecting member 22 is improved.

In addition, the same light source 321 can enter two different detection through holes 421 through two light guide channels 44 on two sides, so that the utilization rate of the light source 321 is improved, and the detection of a plurality of samples can be simultaneously realized.

In order to ensure that the light at the different light guide channels 44 is not interfered, further, the second support 42 is further provided with a plurality of light blocking portions 423, the light blocking portions 423 are arranged at one end of the second support 42 facing the first support 41, the light blocking portions 423 are arranged on the light passing holes 412, the light blocking portions 423 are arranged in one-to-one correspondence with the light passing holes 412, the light between the two different light guide channels 44 of the same light source 321 is separated by the light blocking portions 423, the light at the adjacent two detection through holes 421 is ensured not to interfere with each other, the accuracy of the light source 321 reaching the detection piece 22 is improved, and the reliability of the optical switching detection device and the accuracy of the test result are further improved.

Still further, the reagent strip 43 is any one of a dry test strip, a colloidal gold immunochromatographic test strip and a fluorescent immunochromatographic test strip, i.e., different test strips are selected according to different detection items, so that detection of different detection items can be realized.

The embodiment also provides a detection analyzer, which comprises a housing, a circuit board arranged in the housing, and an optical switching detection device according to any one of the above schemes, wherein the detection member 22, the light source 321 and the driving mechanism 31 are all electrically connected to the circuit board. The driving mechanism 31 is controlled by the circuit board to drive the light source strip 32 to move, and meanwhile, the light source 321 corresponding to the detecting piece 22 is turned on, so that the detection of the sample corresponding to the detecting piece 22 can be realized, the result detected by the detecting piece 22 is sent to the circuit board, the operation is convenient, and all effects of the optical switching detection device are met.

Further, the detection analyzer further comprises a control panel and a display screen, wherein the control panel and the display screen are electrically connected to the circuit board, operators can input different requirements on the control panel, and the display screen can display test results, so that the operators can be conveniently informed.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The optical switching detection device is arranged in the detection analyzer, and is characterized in that the optical switching detection device comprises:

a bottom plate (10);

the optical detection assembly (20) is arranged on the bottom plate (10), the optical detection assembly (20) comprises a plurality of detection pieces (22), and the detection pieces (22) can detect the change of an optical signal;

the light source switching assemblies are arranged on the optical detection assembly (20), each light source switching assembly comprises a driving mechanism (31) and two light source strips (32), each driving mechanism (31) is arranged on the bottom plate (10), each light source strip (32) is slidably arranged on two sides of the corresponding detection piece (22), a plurality of light sources (321) are arranged on each light source strip (32) at intervals, at least part of light sources (321) are different in luminous wavelength, each light source strip (32) is in driving connection with the corresponding driving mechanism (31), and each driving mechanism (31) can drive the two light source strips (32) to be close to or far away from each other, so that the corresponding detection piece (22) can selectively sense light emitted by the corresponding two light sources (321) with the same luminous wavelength or light emitted by the corresponding light sources (321) with different luminous wavelengths;

the reagent component (40) is arranged on the optical detection component (20), the reagent component (40) comprises a reagent strip (43), and the light emitted by the light source (321) irradiates the sample of the reagent strip (43) and is reflected to the detection piece (22) so that the detection piece (22) can detect the change of a light signal.

2. The optical switching detection device according to claim 1, wherein the two light source strips (32) have the same structure, the driving mechanism (31) comprises two driving components, the driving components and the light source strips (32) are correspondingly arranged, and an output end of the driving components is connected with the light source strips (32).

3. The optical switch detection device of claim 2, wherein the drive assembly comprises:

the first driving piece is arranged on the bottom plate (10);

the input end of the first transmission component is connected with the output end of the first driving piece;

the screw rod is connected to the output end of the first transmission assembly, and the light source strip (32) is connected to the screw rod in a threaded mode.

4. The optical switching detection device according to claim 1, wherein two light source strips (32) have different structures, the arrangement modes of a plurality of light sources (321) on the two light source strips (32) are different, partial wavelengths in a plurality of light sources (321) on each light source strip (32) are different, an output shaft of the driving mechanism (31) is connected to the two light source strips (32), and the driving mechanism (31) can drive the two light source strips (32) to be close to each other or to be far from each other.

5. The optical switching detection device according to claim 4, wherein the driving mechanism (31) includes:

a second driving member (311) provided on the base plate (10);

a second transmission assembly (312), wherein the input end of the second transmission assembly (312) is connected with the output end of the second driving piece (311);

positive and negative screw (313) are connected to the output of second drive assembly (312), positive and negative screw (313) are including positive screw thread section (3131) and reverse screw thread section (3132), two in light source strip (32) one threaded connection in positive screw thread section (3131), another threaded connection in reverse screw thread section (3132), be located positive screw thread section (3131) light source strip (32) and be located between light source strip (32) of reverse screw thread section (3132) can be close to each other or keep away from each other.

6. The optical switching detection device according to claim 1, wherein the driving mechanism (31) and the light source strip (32) are respectively disposed on two sides of the bottom plate (10), a chute (11) is formed in the bottom plate (10), a slider (33) is disposed on the light source strip (32), and the slider (33) is disposed in a penetrating manner and is slidingly connected to the chute (11), and is in driving connection with the driving mechanism (31).

7. The optical switching detection device according to any one of claims 1-6, wherein the reagent assembly (40) comprises:

the first support (41) is arranged on the bottom plate (10), the first support (41) is provided with a plurality of detection parts (411) and a plurality of light-passing holes (412), the detection parts (411) and the light-passing holes (412) are alternately arranged, the detection parts (411) and the detection pieces (22) are arranged in a one-to-one correspondence mode, the detection parts (411) are covered on the detection pieces (22), the detection parts (411) are provided with detection holes (4111), two sides of each detection part (411) are provided with the light-passing holes (412), and the light-passing holes (412) and the light source strips (32) are arranged in a one-to-one correspondence mode;

the second bracket (42) is provided with a plurality of detection through holes (421), the detection through holes (421) and the detection parts (411) are arranged in a one-to-one correspondence manner, and the second bracket (42) is provided with an installation sliding rail (422);

and the reagent strip (43), wherein the reagent strip (43) is slidably connected in the mounting slide rail (422) and is covered on the detection through hole (421).

8. The optical switching detection device according to claim 7, wherein the detection portion (411) is provided with a light guiding chamfer (4112), a light guiding channel (44) is formed between the light guiding chamfer (4112) and a hole wall of the detection through hole (421), and light energy emitted from the light source (321) irradiates the reagent strip (43) through the light guiding channel (44) and is reflected from the reagent strip (43) to the detection member (22) through the detection hole (4111).

9. The optical switching detection device according to claim 8, wherein the second support (42) is further provided with a plurality of light blocking portions (423), the light blocking portions (423) are disposed at one end of the second support (42) facing the first support (41), the light blocking portions (423) are disposed on the light passing holes (412), and the light blocking portions (423) are disposed in one-to-one correspondence with the light passing holes (412).

10. A detection analyser comprising a housing, a circuit board arranged in the housing and an optical switching detection device according to any one of claims 1-9, wherein the detection member (22), the light source (321) and the drive mechanism (31) are all electrically connected to the circuit board.