Sample detection device

Abstract

The utility model discloses a sample detection device which comprises an installation shell, an excitation light path module and a receiving light path module, the excitation light path module and the receiving light path module are arranged in the installation shell, and a notch space used for placing a sample tube is formed on the outer side of the installation shell. A first light path channel and a second light path channel are respectively formed in two adjacent side walls of the notch space, incident light emitted by the excitation light path assembly enters the notch space along the first light path channel and excites a sample in the sample tube to form reflected light, and the reflected light is converged at the receiving light path module along the second light path channel; according to the sample detection device, the reflected light is reflected by the light path receiving module, the reflected light is analyzed by the light path receiving module, so that the property of the sample is judged, the sample detection device eliminates interference on detection due to the fact that the incident light directly irradiates the light path receiving module, and the structure of the device is simplified and the cost of the device is reduced on the premise of ensuring the detection accuracy.

Description

Technical Field

[0001] The utility model belongs to the technical field of in vitro detection, and in particular relates to a sample detection device. Background Art

[0002] Nucleic acids, the carriers of genetic information in living organisms, are essential components of all known life forms. They primarily exist within the cell nucleus, bound to proteins. With the rapid development of molecular biology, the study and analysis of nucleic acids has been increasingly promoted and applied in clinical diagnosis, food safety, environmental monitoring, agriculture, forestry, and animal husbandry. Instant nucleic acid testing consists of two steps: sample amplification and real-time fluorescence detection. To eliminate interference and ensure the accuracy of fluorescence detection, existing technologies typically utilize optical fiber for the detection path, which is complex and costly to install. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings, the present invention provides a sample detection device, which aims to solve the technical problem that the existing sample detection devices are complicated to install and result in high costs.

[0004] To achieve the above-mentioned objectives, the present invention provides a sample detection device, wherein the sample detection device includes a mounting shell and an excitation light path module and a receiving light path module arranged in the mounting shell; a notch space for placing a sample tube is formed on the outer side of the mounting shell, and a first light path channel and a second light path channel are respectively opened on the two side walls of the mounting shell facing the notch space; the excitation light path module can emit incident light along the first light path channel, the incident light is used to excite the sample in the sample tube to form reflected light, and the receiving light path module is used to receive the reflected light entering the second light path channel.

[0005] In an embodiment of the present invention, the excitation optical path module includes a light source assembly, a first turntable mechanism, and at least two first optical filters for filtering different wavelengths disposed on the first turntable mechanism. The first turntable mechanism is used to sequentially drive opposite sides of the first optical filters to align with the light source assembly and the first optical path channel, respectively.

[0006] The receiving optical path module includes a receiving component, a second turntable mechanism, and at least two second filters arranged on the first turntable mechanism. The at least two second filters are arranged in a one-to-one correspondence with the at least two first filters. The second turntable mechanism is used to sequentially drive the opposite sides of the second filters to align with the receiving component and the second optical path channel respectively. The receiving component is used to receive and analyze the reflected light.

[0007] In an embodiment of the present utility model, the first turntable mechanism includes a rotation drive component and a first turntable body drivingly connected to the rotation drive component, at least two first optical filters are arranged on the first turntable body, and the second turntable mechanism includes a second turntable body rotatably arranged in the mounting shell, at least two second optical filters are arranged on the second turntable body, and the first turntable body and the second turntable body are arranged vertically engaged with each other.

[0008] In an embodiment of the present invention, the rotary drive assembly includes a rotary drive member, a driving gear and a driven gear. The driving gear is arranged on the rotating shaft of the rotary drive member, and the driven gear is arranged on the turntable body. The driving gear and the driven gear are meshed with each other, and the diameter of the driving gear is smaller than the diameter of the driven gear.

[0009] In an embodiment of the present invention, the rotary driving member is located on a side of the driven gear that is away from the second turntable body in the horizontal direction.

[0010] In an embodiment of the present utility model, a mounting base is provided in the mounting shell, and the mounting base includes a fixed mounting base and a side mounting frame standing on the upper side of the mounting base. The rotation drive assembly and the first turntable body are respectively arranged on the upper and lower sides of the mounting base, and the rotation drive assembly is driven and connected to the first turntable body through a first rotating shaft provided through the mounting base, and a second rotating shaft connected to the second turntable body is passed through the side mounting frame.

[0011] In an embodiment of the utility model, the mounting base includes a supporting vertical plate and a first mounting horizontal plate and a second mounting horizontal plate spaced apart from top to bottom on the supporting vertical plate, the first mounting horizontal plate and the second mounting horizontal plate are both extended along the length direction, the first rotating shaft passes through the first mounting horizontal plate and the second mounting horizontal plate in sequence from the first turntable body, the rotation drive assembly is arranged on the lower side of the second mounting horizontal plate, the first turntable body is located on the upper side of the first mounting horizontal plate and is driven and connected to the rotation drive assembly through the first rotating shaft passing through the first mounting horizontal plate and the second mounting horizontal plate, the light source assembly includes a light source component and a first lens, the light source component is arranged on the second mounting horizontal plate and is used to emit incident light, and the first lens is arranged on the first mounting horizontal plate.

[0012] In an embodiment of the present utility model, the side mounting bracket is arranged on the side of the mounting base, and includes a first mounting vertical plate and a second mounting vertical plate arranged in sequence along the length direction of the mounting seat, the second turntable body is arranged on the side of the second mounting vertical plate facing the first turntable body, the second rotating shaft passes through the second mounting vertical plate and the first mounting vertical plate in sequence from the second turntable body, and the receiving component includes a photoelectric sensor and a second lens, the photoelectric sensor is arranged on the first mounting vertical plate, and the second lens is arranged on the second mounting vertical plate.

[0013] In an embodiment of the present invention, a side of the first turntable body facing the first optical path is sunken to form a light-shielding space, and at least two first filters are arranged on the bottom wall of the light-shielding space.

[0014] In an embodiment of the present invention, the sample detection device further comprises a tube sleeve for accommodating the sample tube, wherein the tube sleeve is provided with a light inlet corresponding to the first light path channel and a light outlet corresponding to the second light path channel.

[0015] Through the above technical solution, the sample detection device provided by the embodiment of the utility model has the following beneficial effects:

[0016] When using the above-mentioned sample detection device, the operator places the sample tube in the gap space, starts the sample detection device, and the excitation optical path module emits incident light. The incident light enters the gap space along the first optical path channel and excites the sample in the sample tube to form reflected light. The reflected light converges at the receiving optical path module along the second optical path channel. The receiving optical path module analyzes the reflected light to determine the properties of the sample; the sample detection device constitutes a bent optical path, and the light from the excitation optical path module to the receiving optical path module can only move along this optical path. Part of the light in the remaining paths is blocked by the mounting shell and cannot reach the receiving optical path module, thereby eliminating the interference with the detection caused by the incident light directly shining on the receiving optical path module, ensuring the accuracy of the detection. The sample detection device does not need to be equipped with an optical fiber to guide the movement of light, which simplifies the device structure and installation steps and reduces the cost of the device.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide an understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of a sample detection device according to an embodiment of the present invention;

[0020] Figure 2 is a diagram of the internal structure of a sample detection device according to an embodiment of the present utility model;

[0021] Figure 3 is a side view of the internal structure of a sample detection device according to an embodiment of the present invention;

[0022] Figure 4 This is a structural diagram of a mounting base according to an embodiment of the present utility model;

[0023] Figure 5 This is a structural diagram of the first turntable body according to one embodiment of the present utility model;

[0024] Figure 6This is a structural diagram of a pipe sleeve according to an embodiment of the present utility model;

[0025] Figure 7 It is an exploded view of a sample detection device according to an embodiment of the present invention.

[0026] Description of Reference Numerals

[0027] 1 Install the housing 11 gap space

[0028] 12 side wall 121 first light path channel

[0029] 122 Second optical path channel 2 Excitation optical path module

[0030] 21 Light source assembly 211 Light source component

[0031] 212 first lens 22 first turntable mechanism

[0032] 221 first turntable body 2211 light shielding space

[0033] 2212 bottom wall 222 rotation drive assembly

[0034] 2221 Rotating drive element 2222 Driving gear

[0035] 2223 driven gear 223 first shaft

[0036] 23 First filter 3 Receiving optical path module

[0037] 31 Receiving component 311 Photoelectric sensor

[0038] 312 second lens 32 second turntable mechanism

[0039] 321 second rotating disk body 322 second rotating shaft

[0040] 33 Second filter 4 mounting seat

[0041] 41 Install the base frame 411 Support the vertical board

[0042] 412 first mounting horizontal plate 413 second mounting horizontal plate

[0043] 42 side mounting frame 421 first mounting plate

[0044] 422 Second mounting plate 5 pipe sleeve

[0045] 51 light entrance hole 52 light exit hole

[0046] 6 sample tubes DETAILED DESCRIPTION

[0047] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0048] The sample detection device of the present invention will be described below with reference to the accompanying drawings.

[0049] like Figure 1 As shown, the present invention provides a sample detection device, wherein the sample detection device includes:

[0050] The mounting housing 1 has a notch space 11 formed on the outside of the mounting housing 1 for accommodating the sample tube 6, and a first light path channel 121 and a second light path channel 122 are respectively formed on two side walls 12 of the mounting housing 1 facing the notch space 11;

[0051] The excitation light path module 2 is provided in the mounting housing 1. The excitation light path module 2 can emit incident light along the first light path channel 121. The incident light is used to excite the sample in the sample tube to form reflected light.

[0052] The receiving optical path module 3 is disposed in the mounting housing 1 , and is used for receiving and analyzing the reflected light entering the second optical path channel 122 .

[0053] When using the above-mentioned sample detection device, the operator places the sample tube 6 in the gap space 11, starts the sample detection device, and the excitation light path module 2 emits incident light. The incident light enters the gap space 11 along the first light path channel 121 and excites the sample in the sample tube 6 to form reflected light. The reflected light converges along the second light path channel 122 at the receiving light path module 3, and the receiving light path module 3 analyzes the reflected light to determine the properties of the sample; the sample detection device constitutes a bent light path, and the light from the excitation light path module 2 to the receiving light path module 3 can only move along this light path. Part of the light in the remaining paths is blocked by the mounting shell 1 and cannot reach the receiving light path module 3, thereby eliminating the interference caused by the incident light directly irradiating the receiving light path module 3 on the detection, ensuring the accuracy of the detection, and the sample detection device does not need to be equipped with an optical fiber to guide the movement of light, which simplifies the device structure and installation steps and reduces the cost of the device.

[0054] Specifically, the mounting shell 1 is arranged in an L-shaped structure, and the notch space 11 is preferably arranged in the upper left corner or the upper right corner of the mounting shell 1. The mounting shell 1 can be divided into an upper shell and a lower shell. The receiving light path module 3 is arranged in the upper shell of the mounting shell 1, and the excitation light path module 2 is arranged in the lower shell. The sample tube 6 can be placed horizontally on the top of the lower shell through the corresponding bracket for easy operation. Of course, the present invention is not limited to this, and the notch space 11 can be arranged in other positions of the mounting shell 1 (such as the lower left corner, the lower right corner, etc.). Further, the sample detection device also includes a cover. After the operator places the sample tube 6 in the notch space 11, a cover can be set on the outside of the mounting shell 1 to block external light and eliminate interference. Furthermore, the connection between the two side walls 12 is chamfered to avoid stress concentration and improve the structural strength of the mounting shell 1.

[0055] like Figure 2 and Figure 3 As shown, in an embodiment of the present invention, the excitation optical path module 2 includes a light source assembly 21, a first turntable mechanism 22, and at least two first optical filters 23 for filtering different wavelengths disposed on the first turntable mechanism 22. The first turntable mechanism 22 is used to sequentially drive the opposite sides of the first optical filters 23 to align with the light source assembly 21 and the first optical path channel 121, respectively. When the light emitted by the light source assembly 21 passes through one of the first optical filters 23, only light within a specific wavelength range can pass through the first optical filter 23. Rotating the first turntable mechanism 22 at a certain angle can switch the first optical filter 23 that is directly irradiated by the light source assembly 21. Each first filter 23 corresponds to a wavelength range. By rotating the first turntable mechanism 22, incident light of different wavelengths can be emitted to excite specific substances in the sample to produce a fluorescent reaction.

[0056] The receiving optical path module 3 includes a receiving component 31, a second turntable mechanism 32, and at least two second filters 33 provided on the first turntable mechanism 22. The at least two second filters 33 are provided in a one-to-one correspondence with the at least two first filters 23. The second turntable mechanism 32 is used to sequentially drive the opposite sides of the second filters 33 to align with the second optical path channel 122 and the receiving component 31 respectively. The receiving component 31 is used to receive and analyze the reflected light. The working mode of the receiving optical path module 3 is the same as that of the excitation optical path module 2 and will not be repeated here. By cooperating with the excitation optical path module 2 and the receiving optical path module 3, it is possible to detect characteristic substances in the sample; and it is only necessary to rotate the turntable mechanism to select and switch light of different wavelength ranges. The number of the light source component 21 and the receiving component 31 can be set to one, and both are fixed, which is convenient for setting the wires and can reduce the cost of the device.

[0057] like Figure 3As shown, in an embodiment of the present invention, the first turntable mechanism 22 includes a rotational drive assembly 222 and a first turntable body 221 drivingly connected to the rotational drive assembly 222. At least two first optical filters 23 are disposed on the first turntable body 221. The second turntable mechanism 32 includes a second turntable body 321 rotatably disposed within the mounting housing 1. At least two second optical filters 33 are disposed on the second turntable body 321. The first turntable body 221 and the second turntable body 321 are vertically meshed. Since the first optical filters 23 and the second optical filters 33 are in a one-to-one correspondence, the angle of each rotation of the first turntable body 221 and the second turntable body 321 is the same. Therefore, the first turntable body 221 and the second turntable body 321 are vertically meshed. By providing a single rotational drive member 2221, the two turntable bodies can be driven to rotate synchronously. In other embodiments of the present invention, the rotational drive assembly 222 can also be drivingly connected to the second turntable body 321, or each turntable body can correspond to an independent drive assembly.

[0058] like Figure 3 As shown, in this embodiment of the present invention, the rotary drive assembly 222 includes a rotary drive member 2221, a driving gear 2222, and a driven gear 2223. The driving gear 2222 is disposed on the rotating shaft of the rotary drive member 2221, and the driven gear 2223 is disposed on the turntable body. The driving gear 2222 and the driven gear 2223 are meshed with each other, and the diameter of the driving gear 2222 is smaller than the diameter of the driven gear 2223. The driving gear 2222 and the driven gear 2223 have two functions: one is to increase the output torque of the rotary drive member 2221, and the other is to reduce the error of the rotation angle to ensure that the corresponding first filter 23 can be aligned with the light source assembly 21.

[0059] like Figure 3 As shown, in this embodiment of the present invention, the rotary driving member 2221 is located on a side of the driven gear 2223 that is horizontally away from the second turntable body 321 , so that the weight on both sides of the sample detection device is more balanced.

[0060] like Figure 1 、 Figure 4 and Figure 7As shown, in the embodiment of the present utility model, a mounting base 4 is provided in the mounting housing 1, and the mounting base 4 includes a fixed mounting base 41 and a side mounting frame 42 standing on the upper side of the mounting base 41. The rotation drive assembly 222 and the first turntable body 221 are respectively provided on the upper and lower sides of the mounting base 41, and the rotation drive assembly 222 is driven and connected to the first turntable body 221 via a first rotating shaft 223 provided through the mounting base 41. The side mounting frame 42 is provided with a second rotating shaft 322 connected to the second turntable body 321. By providing the mounting base 4, on the one hand, a support point can be provided for the excitation optical path module 2 and the receiving optical path module 3; on the other hand, the mounting base 4 can also be used to separate the internal space of the mounting housing 1 to prevent the incident light emitted by the light source assembly 21 from directly irradiating the receiving assembly 31.

[0061] Specifically, the mounting base 41 includes a supporting vertical plate 411 and a first mounting horizontal plate 412 and a second mounting horizontal plate 413 spaced apart from top to bottom on the supporting vertical plate 411. The rotation drive assembly 222 is arranged on the lower side of the second mounting horizontal plate 413. The first turntable body 221 is located on the upper side of the first mounting horizontal plate 412 and is driven and connected to the rotation drive assembly 222 through a first rotating shaft 223 passing through the first mounting horizontal plate 412 and the second mounting horizontal plate 413. The light source assembly 21 includes a light source component 211 and a first lens 212. The light source component 211 is arranged on the second mounting horizontal plate 413 and is used to emit incident light. The first lens 212 is arranged on the first mounting horizontal plate 412. The incident light emitted by the light source component 211 is converged by the first lens 212 and passes through the first filter 23. The first and second mounting cross plates 412, 413, spaced apart from each other, form two support points for the first rotating shaft 223, further stabilizing the movement of the first turntable mechanism 22. Furthermore, the light source 211 is positioned below the first mounting cross plate 412, which acts as a light shield. Furthermore, the first mounting cross plate 412 is shorter than the second mounting cross plate 413, merely providing sufficient space for the first rotating shaft 223 to pass through, thereby reducing material costs and device weight.

[0062] Specifically, the side mounting frame 42 is disposed on the side of the mounting base 41 and includes a first mounting plate 421 and a second mounting plate 422 spaced apart along the length of the mounting base 4. The second turntable body 321 is disposed on the side of the second mounting plate 422 facing the first turntable body 221. The second rotating shaft 322 extends from the second turntable body 321 through the second mounting plate 422 and the first mounting plate 421. The receiving assembly 31 includes a photoelectric sensor 311 and a second lens 312. The photoelectric sensor 311 is disposed on the first mounting plate 421, and the second lens 312 is disposed on the second mounting plate 422. Reflected light is converged by the second lens 312 and illuminates the photoelectric sensor 311. The spaced apart first and second mounting plates 421, 422 form two support points for the second rotating shaft 322, making the movement of the second turntable mechanism 32 more stable. The photoelectric sensor 311 is disposed on the first mounting plate 421, and the second mounting cross plate 413 can provide light shielding.

[0063] like Figure 5 As shown, in this embodiment of the present invention, the first turntable body 221 is sunken toward one side of the first optical path channel 121 to form a light-shielding space 2211. At least two first filters 23 are disposed on the bottom wall 2212 of the light-shielding space 2211. The sidewalls 12 of the light-shielding space 2211 can block incident light with a large divergence angle, thereby preventing interference with the photoelectric sensor 311.

[0064] like Figure 6 As shown, in this embodiment of the present invention, the sample detection device further includes a tube sleeve 5 for accommodating a sample tube 6. The tube sleeve 5 defines a light inlet 51 corresponding to the first optical path 121, and a light outlet 52 corresponding to the second optical path 122. The tube sleeve 5 is used to secure the sample tube 6, and the light inlet 51 and light outlet 52 further restrict the movement of light.

[0065] See also Figure 7 When assembling the above-mentioned sample detection device, the filter is first installed on the corresponding turntable body, and then the turntable body is installed on the mounting seat, and finally the mounting shell is installed to complete the assembly. The installation steps are simple and the labor cost is effectively reduced.

[0066] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0067] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0069] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A sample detection device, characterized in that: The sample detection device comprises: A mounting housing (1) is formed on the outer side of the mounting housing (1) with a notch space (11) for placing a sample tube (6), and a first light path channel (121) and a second light path channel (122) are respectively formed on two side walls (12) of the mounting housing (1) facing the notch space (11); An excitation light path module (2) is disposed in the mounting housing (1), and the excitation light path module (2) can emit incident light along the first light path channel (121), the incident light being used to excite the sample in the sample tube (6) to form reflected light; A receiving optical path module (3) is provided in the mounting housing (1), and the receiving optical path module (3) is used to receive and analyze the reflected light entering the second optical path channel (122).

2. The sample detection device according to claim 1, characterized in that: The excitation optical path module (2) comprises a light source assembly (21), a first turntable mechanism (22), and at least two first optical filters (23) for filtering different wavelengths arranged on the first turntable mechanism (22), wherein the first turntable mechanism (22) is used to sequentially drive the opposite sides of the first optical filters (23) to align with the light source assembly (21) and the first optical path channel (121), respectively. The receiving optical path module (3) comprises a receiving component (31), a second turntable mechanism (32), and at least two second optical filters (33) arranged on the first turntable mechanism (22), wherein the at least two second optical filters (33) are arranged in a one-to-one correspondence with the at least two first optical filters (23), and the second turntable mechanism (32) is used to sequentially drive the opposite sides of the second optical filters (33) to align with the second optical path channel (122) and the receiving component (31), respectively, and the receiving component (31) is used to receive and analyze the reflected light.

3. The sample detection device according to claim 2, characterized in that: The first turntable mechanism (22) comprises a rotation drive assembly (222) and a first turntable body (221) drivingly connected to the rotation drive assembly (222); at least two of the first optical filters (23) are arranged on the first turntable body (221); the second turntable mechanism (32) comprises a second turntable body (321) rotatably arranged in the mounting housing (1); at least two of the second optical filters (33) are arranged on the second turntable body (321); the first turntable body (221) and the second turntable body (321) are arranged in a vertically meshed manner.

4. The sample detection device according to claim 3, characterized in that: The rotary drive assembly (222) comprises a rotary drive member (2221), a driving gear (2222) and a driven gear (2223); the driving gear (2222) is arranged on the rotating shaft of the rotary drive member (2221); the driven gear (2223) is arranged on the first turntable body (221); the driving gear (2222) and the driven gear (2223) are meshed with each other, and the diameter of the driving gear (2222) is smaller than the diameter of the driven gear (2223).

5. The sample detection device according to claim 4, characterized in that: The rotary driving member (2221) is located on a side of the driven gear (2223) that is away from the second turntable body (321) in the horizontal direction.

6. The sample detection device according to claim 3, characterized in that: A mounting base (4) is provided in the mounting shell (1), and the mounting base (4) comprises a fixed mounting base (41) and a side mounting frame (42) standing on the upper side of the mounting base (41); the rotation drive assembly (222) and the first turntable body (221) are respectively provided on the upper and lower sides of the mounting base (41); and the rotation drive assembly (222) is drivingly connected to the first turntable body (221) via a first rotating shaft (223) provided through the mounting base (41); and a second rotating shaft (322) connected to the second turntable body (321) is provided on the side mounting frame (42).

7. The sample detection device according to claim 6, characterized in that: The mounting base (41) includes a supporting vertical plate (411) and a first mounting horizontal plate (412) and a second mounting horizontal plate (413) spaced apart from top to bottom on the supporting vertical plate (411); the rotation drive assembly (222) is arranged on the lower side of the second mounting horizontal plate (413); the first turntable body (221) is located on the upper side of the first mounting horizontal plate (412) and is driven and connected to the rotation drive assembly (222) via a first rotating shaft (223) passing through the first mounting horizontal plate (412) and the second mounting horizontal plate (413); the light source assembly (21) includes a light source component (211) and a first lens (212); the light source component (211) is arranged on the second mounting horizontal plate (413) and is used to emit the incident light; the first lens (212) is arranged on the first mounting horizontal plate (412).

8. The sample detection device according to claim 6, characterized in that: The side mounting frame (42) is arranged on the side of the mounting base (41), and includes a first mounting vertical plate (421) and a second mounting vertical plate (422) arranged in sequence along the length direction of the mounting seat (4); the second turntable body (321) is arranged on the side of the second mounting vertical plate (422) facing the first turntable body (221); the second rotating shaft (322) passes through the second mounting vertical plate (422) and the first mounting vertical plate (421) in sequence from the second turntable body (321); the receiving component (31) includes a photoelectric sensor (311) and a second lens (312); the photoelectric sensor (311) is arranged on the first mounting vertical plate (421), and the second lens (312) is arranged on the second mounting vertical plate (422).

9. The sample detection device according to claim 3, characterized in that: The first turntable body (221) is sunken on one side toward the first light path channel (121) to form a light shielding space (2211), and at least two first filters (23) are arranged on the bottom wall (2212) of the light shielding space (2211).

10. The sample detection device according to any one of claims 1 to 9, characterized in that: The sample detection device further comprises a tube sleeve (5) for accommodating the sample tube (6), wherein the tube sleeve (5) is provided with a light inlet (51) corresponding to the first light path channel (121), and a light outlet (52) corresponding to the second light path channel (122).

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