Multi-light-path reagent detection device
By employing a single-wavelength light source and optimizing the optical path design, the photoelectric sensor is moved inside the optical path, solving the problems of optical path complexity and detection error in existing technologies, and achieving the effects of simplifying the structure, reducing costs, and improving detection accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-10
AI Technical Summary
In existing multi-optical-path reagent detection devices, white light sources need to be used with filters to achieve single-wavelength light screening, which increases the complexity and cost of the optical path. At the same time, the photoelectric sensor is located at the end of the optical path, which leads to light energy attenuation and detection errors.
By using a single-wavelength light source and moving the photoelectric sensor to the side of the optical path closer to the light source, the optical path structure is simplified, the use of filters is avoided, and light energy loss and external light interference are reduced.
It reduces device complexity and cost, improves detection accuracy and stability, reduces optical signal attenuation and interference, and enhances detection reliability.
Smart Images
Figure CN224109319U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to reagent detection technical field, more specifically, relate to a kind of multi-path reagent detection device. BACKGROUND
[0002] In the existing multi-path reagent detection device, light source usually adopts white light source, and transmits light to optical path by optical fiber.
[0003] This design can realize multi-wavelength detection, but white light source needs to cooperate with optical filter to realize single-wavelength light screening, which not only increases the complexity of optical path, but also increases manufacturing cost. In addition, since photoelectric sensor is usually directly installed on the circuit board at the last end of optical path, light will pass through multiple optical elements during transmission, which causes gradual attenuation of light energy during transmission, which not only reduces the sensitivity of detection, but also may cause error of detection result.
[0004] In order to solve the above problems, a multi-path reagent detection device with simple structure, low cost, small light energy loss, strong anti-ambient light interference ability and high detection precision is needed. By changing the light source to single-wavelength light source and moving the photoelectric sensor to the inside of optical path, the distance between photoelectric sensor and reaction cup can be effectively shortened, light energy loss can be reduced, external light interference can be prevented, and the sensitivity and precision of detection can be improved. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of multi-path reagent detection device, to solve the problem that white light source needs to cooperate with optical filter to realize single-wavelength light screening, improves manufacturing cost, and photoelectric sensor is usually located at the last end of optical path, reduces detection sensitivity.
[0006] To achieve the above object, the utility model adopts the technical scheme of providing a kind of multi-path reagent detection device, including light source mechanism, support frame, optical path mechanism and detection receiving circuit board arranged in sequence;
[0007] The light source mechanism includes a plurality of single-wavelength light sources arranged side by side;
[0008] The upper end of the support frame is used for swing installation of quantitative sampling and reagent adding device;
[0009] The optical path mechanism includes optical path channel, and photoelectric sensor is arranged on the side close to the light source mechanism of the optical path channel;
[0010] The detection receiving circuit board is electrically connected with the photoelectric sensor.
[0011] In a possible implementation, the light source mechanism further comprises a first support base and a light source lower housing, the light source lower housing is arranged on the upper end surface of the first support base, and a light source upper housing is detachably arranged on the upper end of the light source lower housing; and a plurality of single-wavelength light sources are arranged one by one between the light source lower housing and the light source upper housing.
[0012] In a possible implementation, the two sides of the light source upper housing are respectively provided with elastic buckles, and the two sides of the light source lower housing are correspondingly provided with buckle grooves matched with the elastic buckles.
[0013] In a possible implementation, the single-wavelength light source comprises any one or any combination of a laser diode, a light-emitting diode, a gas laser, or a semiconductor laser.
[0014] In a possible implementation, the top end of the support frame is provided with a bearing assembly, the bearing assembly is used to connect the quantitative sampling and reagent adding device, and the quantitative sampling and reagent adding device is driven to swing by means of the driving motor.
[0015] In a possible implementation, the support frame is a frame structure, the support frame surrounds the outer periphery of the light path mechanism close to one end of the light source mechanism, the quantitative sampling and reagent adding device is arranged on the side of the support frame close to the light source mechanism, and the driving motor is arranged on the side of the quantitative sampling and reagent adding device away from the bearing assembly and coaxially arranged with the bearing assembly.
[0016] In a possible implementation, the light path mechanism further comprises a second support base and a light path lower housing, the light path lower housing is arranged on the upper end surface of the second support base, and a light path upper housing is detachably arranged on the upper end of the light path lower housing; and the light path lower housing and the light path upper housing jointly form the light path channel.
[0017] In a possible implementation, the two sides of the light path lower housing and the two sides of the light path upper housing are respectively provided with a plurality of connecting sleeves, the connecting sleeves of the light path lower housing and the connecting sleeves of the light path upper housing are coaxially arranged and fixed to the second support base by connecting bolts.
[0018] In a possible implementation, the detection receiving circuit board is connected to the rear sides of the light path lower housing and the light path upper housing by connecting bolts.
[0019] The beneficial effect of the multi-light-path reagent detection device provided by the utility model lies in that, compared with the prior art, the white light source is changed into a single-wavelength light source, so that a filter is no longer needed to separate light of a specific wavelength, thereby simplifying the light path structure and reducing the complexity and manufacturing cost of the device. The single-wavelength light source directly emits light of a specific wavelength, avoiding optical errors that may be introduced when the white light source passes through the filter, and improving the accuracy and stability of detection. The photoelectric sensor is adjusted from the last position of the light path to the side of the light path channel close to the light source mechanism, so that the photoelectric sensor can detect the light signal earlier, reduce the attenuation and interference of the light signal in the transmission process, and further improve the reliability of detection. The multi-light-path reagent detection device provided by the utility model changes the white light source into a single-wavelength light source and optimizes the light path design, so that the multi-light-path reagent detection device improves the detection accuracy, efficiency and stability while simplifying the structure and reducing the cost, and has high practicability and market competitiveness. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.
[0021] Figure 1 It is a perspective view of the multi-light-path reagent detection device provided by the utility model.
[0022] Figure 2 It is a perspective view of the multi-light-path reagent detection device provided by the utility model after removing the light source upper shell and the light path upper shell.
[0023] Figure 3 It is a perspective view of the multi-light-path reagent detection device provided by the utility model. Figure 1 It is a local enlarged view of M in the middle.
[0024] In the figure: 1, first support seat;2, light source lower shell;3, light source upper shell;4, single-wavelength light source;5, support frame;6, bearing assembly;7, driving motor;8, quantitative sampling and reagent adding device;9, second support seat;10, light path lower shell;11, light path upper shell;12, light path channel;13, photoelectric sensor;14, detection receiving circuit board;15, elastic buckle;16, connecting sleeve. DETAILED DESCRIPTION
[0025] In order to make the technical problems, technical solutions and beneficial effects of the utility model more clearly understood, the following will further describe the utility model in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0026] Unless otherwise clear from context, the use of terms such as "first", "second", or "third" etc. are merely to distinguish a different object, and are not used to describe a specific order.
[0027] Unless otherwise clear from context, the use of terms such as "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise", "high", "low", etc. indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the present application.
[0028] Please refer to Figure 1 and Figure 2 , now a kind of multi-path reagent detection device provided by the utility model will be described.A kind of multi-path reagent detection device, including light source mechanism, support frame 5, optical path mechanism and detection receiving circuit board 14 are sequentially arranged;Light source mechanism includes a plurality of single-wavelength light sources 4 arranged side by side;The upper end of support frame 5 is used to swing installation quantitative sampling and reagent device 8;Optical path mechanism includes optical path channel 12, photoelectric sensor 13 is arranged on the side close to light source mechanism of optical path channel 12;Detection receiving circuit board 14 is electrically connected with photoelectric sensor 13.
[0029] Compared with the prior art, the multi-path reagent detection device provided by the utility model changes the white light source into a single-wavelength light source 4, so that the filter is no longer needed to separate the light of a specific wavelength, thereby simplifying the optical path structure and reducing the complexity and manufacturing cost of the device. The single-wavelength light source 4 directly emits light of a specific wavelength, avoiding the optical error that may be introduced when the white light source passes through the filter, and improving the detection accuracy and stability. The photoelectric sensor 13 is adjusted from the last position of the optical path to the side close to the light source mechanism of the optical path channel 12, so that the light signal can be detected earlier, the attenuation and interference of the light signal in the transmission process are reduced, and the detection reliability is further improved. The multi-path reagent detection device provided by the utility model changes the white light source into a single-wavelength light source 4 and optimizes the optical path design, which simplifies the structure, reduces the cost, improves the detection accuracy, efficiency and stability, and has high practicability and market competitiveness.
[0030] Please refer to Figure 1 and Figure 3The light source mechanism further comprises a first support seat 1 and a light source lower housing 2 arranged on the upper end surface of the first support seat 1, and a light source upper housing 3 detachably mounted on the upper end of the light source lower housing 2, and a plurality of single-wavelength light sources 4 are arranged one by one between the light source lower housing 2 and the light source upper housing 3. The detachable mounting mode of the light source lower housing 2 and the light source upper housing 3 is buckle connection, so that when the single-wavelength light source 4 fails, the housing can be quickly opened for maintenance or replacement. A sealing rubber strip is further arranged at the connection between the light source lower housing 2 and the light source upper housing 3, which can prevent external dust and water vapor from entering the inside of the housing, thereby protecting the single-wavelength light source 4 inside from erosion and prolonging its service life.
[0031] Specifically, elastic buckles 15 are arranged on both sides of the light source upper housing 3, and corresponding clamping grooves adapted to the elastic buckles 15 are arranged on both sides of the light source lower housing 2. When assembling the light source upper housing 3 and the light source lower housing 2, the elastic buckles 15 on both sides of the upper housing are aligned with the clamping grooves on both sides of the lower housing, and then the upper housing is pressed gently. The elastic buckles 15 will elastically deform under the action of pressure and smoothly enter the clamping grooves. This structure design not only makes the assembly process of the light source upper housing 3 and the lower housing very convenient, but also has good structural stability after buckling. In daily use, it can effectively prevent the housing from separating due to slight vibration or collision, thereby ensuring the integrity of the internal structure of the light source and improving the service life of the light source.
[0032] Specifically, the single-wavelength light source 4 includes any one or any combination of a laser diode, a light-emitting diode, a gas laser, or a semiconductor laser. Here, any one or combination of a laser diode and a light-emitting diode is preferred.
[0033] The top end of the support frame 5 is provided with a bearing assembly 6 for connecting the quantitative sampling and reagent adding device 8 and driving the quantitative sampling and reagent adding device 8 to swing by means of the driving motor 7. In actual application, the output shaft of the driving motor 7 is connected to one side of the quantitative sampling and reagent adding device 8, and the bearing assembly 6 is connected to the other side of the quantitative sampling and reagent adding device 8 through a shaft coupling. When the driving motor 7 starts, the torque of the motor is stably transmitted to the bearing assembly 6 through the shaft coupling, and then the quantitative sampling and reagent adding device 8 is driven to swing according to the set trajectory, so as to shake the reagent evenly. In addition, the quantitative sampling and reagent adding device 8 is driven to swing by the driving motor 7, which reduces manual intervention, realizes the automation of the sampling and reagent adding process, improves the detection efficiency, and reduces human operation errors.
[0034] The support frame 5 is a frame structure, which surrounds the outer periphery of the optical path mechanism at the end close to the light source mechanism. The quantitative sampling and reagent adding device 8 is used to be installed at the side of the support frame 5 close to the light source mechanism. The driving motor 7 is installed at the side of the quantitative sampling and reagent adding device 8 away from the bearing assembly 6 and is coaxially arranged with the bearing assembly 6. The frame structure of the support frame 5 can reduce the weight as much as possible while ensuring the strength, so as to adapt to the demand of the overall layout of the whole device.
[0035] The optical path mechanism further comprises a second support base 9 and an optical path lower shell 10. The optical path lower shell 10 is arranged on the upper end surface of the second support base 9. The upper end of the optical path lower shell 10 is detachably installed with an optical path upper shell 11. The optical path lower shell 10 and the optical path upper shell 11 jointly form an optical path channel 12.
[0036] Inside the optical path channel 12, a plurality of precise optical elements (convex lenses, plane mirrors) are arranged along a specific path to ensure that the light can be accurately transmitted. The second support base 9 not only supports the optical path lower shell 10, but also provides a stable foundation for the entire optical path mechanism, which can effectively reduce the interference of external vibration on the optical path. The detachable installation of the optical path upper shell 11 and the optical path lower shell 10 facilitates the maintenance and replacement of optical elements inside the optical path channel 12. In actual application, this design greatly improves the operability and service life of the device.
[0037] A plurality of connecting sleeves 16 are arranged on both sides of the optical path lower shell 10 and the optical path upper shell 11. The plurality of connecting sleeves 16 of the optical path lower shell 10 and the plurality of connecting sleeves 16 of the optical path upper shell 11 are coaxially arranged and fixed on the second support base 9 by connecting bolts. The cooperation of these connecting sleeves 16 and connecting bolts enables the optical path lower shell 10 and the optical path upper shell 11 to be stably fixed on the second support base 9, ensuring the stability of the entire optical path structure. During the operation of the device, this stable connection can effectively resist the vibration or displacement interference caused by external factors. Moreover, the coaxial arrangement of the plurality of connecting sleeves 16 not only facilitates the operation during installation, but also forms a uniform stress distribution in the mechanical structure, so that the support force received by the optical path lower shell 10 and the optical path upper shell 11 from the second support base 9 is evenly distributed, reducing the risk of local stress overload, thereby further improving the reliability of the entire optical path system and prolonging the service life of the device.
[0038] The detection receiving circuit board 14 is connected to the rear side of the optical path lower shell 10 and the optical path upper shell 11 by connecting bolts. The detection receiving circuit board 14 will not loosen or displace due to vibration or other external factors. Once loosening or displacement occurs, it may cause deviation in the reception of the optical path transmission signal, thereby affecting the working efficiency and accuracy of the entire device.
[0039] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A multi-optical-path reagent detection device, characterized in that, It includes a light source mechanism, a support frame (5), an optical path mechanism, and a detection and receiving circuit board (14) arranged in sequence; The light source mechanism includes multiple single-wavelength light sources (4) arranged side by side; The upper end of the support frame (5) is used for swinging the quantitative sampling and reagent addition device (8); The optical path mechanism includes an optical path channel (12), and a photoelectric sensor (13) is provided on the side of the optical path channel (12) near the light source mechanism; The detection receiving circuit board (14) is electrically connected to the photoelectric sensor (13).
2. The multi-optical-path reagent detection device as described in claim 1, characterized in that, The light source mechanism also includes a first support base (1) and a lower housing (2) of the light source. The lower housing (2) of the light source is disposed on the upper end surface of the first support base (1). An upper housing (3) of the light source is detachably installed on the upper end of the lower housing (2). A plurality of single-wavelength light sources (4) are disposed one-to-one between the lower housing (2) of the light source and the upper housing (3) of the light source.
3. The multi-optical-path reagent detection device as described in claim 2, characterized in that, The upper housing (3) of the light source is provided with elastic buckles (15) on both sides, and the lower housing (2) of the light source is provided with corresponding slots that are adapted to the elastic buckles (15) on both sides.
4. The multi-optical-path reagent detection device as described in claim 1, characterized in that, The single-wavelength light source (4) includes any one or any combination of laser diode, light-emitting diode, gas laser or semiconductor laser.
5. The multi-optical-path reagent detection device as described in claim 1, characterized in that, The top of the support frame (5) is provided with a bearing assembly (6), which is used to connect the quantitative sampling and reagent adding device (8) and drive the quantitative sampling and reagent adding device (8) to swing by means of a drive motor (7).
6. The multi-optical-path reagent detection device as described in claim 5, characterized in that, The support frame (5) is a frame structure. The support frame (5) surrounds the outer periphery of the optical path mechanism near the light source mechanism. The quantitative sampling and reagent addition device (8) is installed on the side of the support frame (5) near the light source mechanism. The drive motor (7) is installed on the side of the quantitative sampling and reagent addition device (8) away from the bearing assembly (6) and is coaxial with the bearing assembly (6).
7. The multi-optical-path reagent detection device as described in claim 1, characterized in that, The optical path mechanism also includes a second support base (9) and an optical path lower housing (10). The optical path lower housing (10) is disposed on the upper end surface of the second support base (9). An optical path upper housing (11) is detachably installed on the upper end of the optical path lower housing (10). The optical path lower housing (10) and the optical path upper housing (11) together constitute the optical path channel (12).
8. The multi-optical-path reagent detection device as described in claim 7, characterized in that, Multiple connecting sleeves (16) are provided on both sides of the lower optical path housing (10) and the upper optical path housing (11). The multiple connecting sleeves (16) of the lower optical path housing (10) and the multiple connecting sleeves (16) of the upper optical path housing (11) are coaxially arranged and fixed to the second support base (9) by connecting bolts.
9. The multi-optical-path reagent detection device as described in claim 7, characterized in that, The detection receiving circuit board (14) is connected to the rear side of the lower optical path housing (10) and the upper optical path housing (11) respectively by connecting bolts.