Multi-channel pesticide residue rapid detection device

Abstract

The utility model discloses a kind of multi-channel pesticide residue rapid detection devices, including pivot, pivot is rotatably installed on the upper portion of shell inner cavity by bearing seat, the main body of pivot is arranged in hollow speed reducer along vertical direction, the bottom end of pivot is connected with encoder, the top of pivot is installed with detachably connected sample disc, sample disc is connected by spline with pivot, the periphery of sample disc is equipped with multiple placement grooves for placing cuvette, and two handles arranged side by side are fixedly installed on the upper surface of sample disc.The multi-channel pesticide residue rapid detection device provided by the utility model can greatly shorten the conversion time between batches, maximize the utilization of equipment, and is suitable for scenes requiring rapid screening of a large number of samples.

Description

Technical Field

[0001] This utility model relates to a multi-channel rapid pesticide residue detection device, belonging to the field of pesticide residue detection technology. Background Technology

[0002] The core principle of colorimetric detection of pesticide residues is to cause a color change in the pesticide residues in the sample through a specific chemical reaction, or to inhibit a color reaction, and then to perform qualitative or semi-quantitative analysis of the color intensity by visual inspection or instruments.

[0003] CN202322870454.1 discloses a 48-channel cuvette detection structure, including a rotatable cuvette dish, a cover plate fixedly connected to the cuvette dish, and a fixing plate, a support plate A, and a support plate B arranged sequentially below the cuvette dish. Vertically arranged rotating shafts are installed inside the fixing plate, support plate A, and support plate B. The cuvette detection structure provided by this utility model enables continuous batch detection through multiple channels.

[0004] The technical solutions disclosed in the aforementioned patent documents still have the following technical problems, based on practical experience: When the previous batch of samples was being tested, the equipment was occupied, preventing the operator from loading the next batch. The operator had to wait until the current batch was completely tested and unloaded before preparing and loading the next batch could begin, resulting in significant wasted waiting time. This led to problems of equipment idleness and low utilization between batches.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] This invention addresses the shortcomings of the prior art by providing a multi-channel rapid pesticide residue detection device, which can greatly shorten the batch conversion time, maximize the utilization rate of the equipment, and is suitable for scenarios that require rapid screening of a large number of samples.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: A multi-channel rapid pesticide residue detection device includes a rotating shaft, which is rotatably mounted on the upper part of the housing cavity via a bearing seat. The main body of the rotating shaft is vertically inserted into a hollow reducer. An encoder is connected to the bottom end of the rotating shaft, and a detachably connected sample tray is installed on the top of the rotating shaft. The sample tray is connected to the rotating shaft via a spline. The outer periphery of the sample tray is provided with multiple placement slots for placing cuvettes. Two handles arranged side by side are fixedly installed on the upper surface of the sample tray.

[0008] Furthermore, the bearing housing is fixed to the top of the housing to provide rotational support for the shaft.

[0009] Furthermore, the hollow reducer is bolted to the upper part of the inner cavity of the housing, and the hollow reducer drives the rotating shaft to rotate.

[0010] Furthermore, the encoder is fixed to the bottom of the inner cavity of the housing.

[0011] Furthermore, the top of the rotating shaft is provided with a positioning plate and an external spline from bottom to top, and the positioning plate has a ring structure.

[0012] Furthermore, the sample disk has internal splines that mesh with the external splines of the rotating shaft.

[0013] Furthermore, the placement slots are circumferentially distributed, and through holes are provided on both sides of the placement slots, with the through holes being perpendicularly connected to the placement slots.

[0014] Furthermore, a light-emitting module and a photoelectric receiving module are installed on the upper part of the housing near its periphery, and the light-emitting module and the photoelectric receiving module are distributed on the inner and outer sides of the rotating area of ​​the placement slot.

[0015] Furthermore, the light-emitting module is installed on the periphery of the sample tray.

[0016] Furthermore, the photoelectric receiving module is located at the bottom of the sample tray.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: This utility model adopts a replaceable sample tray and spline connection, which allows the operator to prepare the sample tray for the next batch while one batch of samples is being tested. This greatly shortens the preparation time between batches and improves the overall efficiency. It is particularly suitable for scenarios that require rapid screening of a large number of samples, such as vegetable wholesale markets, canteens, and large farms. The disc-shaped design, combined with the circumferentially distributed placement slots, allows for the simultaneous placement of multiple samples, enabling rapid and continuous testing of batch samples. The encoder provides precise angular feedback, ensuring that each cuvette stops accurately at the detection point, enabling automated and reliable measurement.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the sample tray and the handle; Figure 3 This is a schematic diagram of the top structure of the rotating shaft.

[0020] In the figure, 1-shell, 2-shaft, 21-external spline, 22-positioning tray, 3-hollow reducer, 4-encoder, 5-sample tray, 51-placement slot, 52-through hole, 53-internal spline, 6-cuvette, 7-light-emitting module, 8-photoelectric receiving module, 9-handle. Detailed Implementation

[0021] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0022] like Figures 1-3 As shown in the figure, this utility model provides a multi-channel rapid pesticide residue detection device, including a rotating shaft 2. The rotating shaft 2 is rotatably mounted on the upper part of the inner cavity of the housing 1 through a bearing seat. The main body of the rotating shaft 2 passes through the hollow reducer 3 in the vertical direction. An encoder 4 is connected to the bottom end of the rotating shaft 2. A detachably connected sample plate 5 is installed on the top of the rotating shaft 2. The sample plate 5 is connected to the rotating shaft 2 through a spline. The outer periphery of the sample plate 5 is provided with multiple placement slots 51 for placing cuvettes 6.

[0023] The bearing seat is fixed to the top of the housing 1 and provides rotational support for the rotating shaft 2.

[0024] The hollow reducer 3 is fixed to the upper part of the inner cavity of the housing 1 by bolts, and the hollow reducer 3 drives the rotating shaft 2 to rotate.

[0025] The encoder 4 is fixed to the bottom of the inner cavity of the housing 1. The encoder 4 is used to identify the angle position and to accurately identify and guide the positioning of the hollow reducer 3 by comparing the colorimeter 6.

[0026] The top of the rotating shaft 2 is provided with a positioning plate 22 and an external spline 21 from bottom to top. The positioning plate 22 is a ring structure and is used to support the sample tray 5.

[0027] The sample tray 5 has an internal spline 53 inside, which meshes with the external spline 21 of the rotating shaft 2 to realize the transmission of torque.

[0028] Two handles 9 are fixedly installed side by side on the upper surface of the sample tray 5 to facilitate the replacement of different sample trays 5.

[0029] The placement slot 51 is circumferentially distributed, and through holes 52 are provided on both sides of the placement slot 51. The through holes 52 are perpendicularly connected to the placement slot 51, and the through holes 52 allow the light beam to pass through in a fixed path.

[0030] A light-emitting module 7 and a photoelectric receiving module 8 are installed on the upper part of the housing 1 near its periphery. The light-emitting module 7 and the photoelectric receiving module 8 are distributed on the inner and outer sides of the rotating area of ​​the placement slot 51.

[0031] The light-emitting module 7 is installed on the periphery of the sample pan 5 to generate light of a specific wavelength or band that passes through the sample in the cuvette 6. The photoelectric receiving module 8 is located at the bottom of the sample pan 5 to detect the light signal after it passes through the sample and convert it into a measurable electrical signal.

[0032] The specific working principle of this utility model is as follows: The operator injects the pre-reacted sample solution into cuvette 6, and uses handle 9 to install the sample tray 5, which is filled with cuvette 6, onto the top of the rotating shaft 2. The spline connection enables quick and accurate installation and ensures effective torque transmission. The hollow reducer 3 drives the rotating shaft 2 to rotate, thereby rotating the sample tray 5 and cuvette 6. The light-emitting module 7 and the photoelectric receiving module 8 detect the reagents in each cuvette 6 one by one.

[0033] This invention employs a replaceable sample tray and spline connection, allowing the operator to prepare the next batch of sample trays while one batch of samples is being tested, significantly reducing preparation time between batches and improving overall efficiency. The disc-type design, combined with circumferentially distributed placement slots, allows for the simultaneous placement of multiple samples, enabling rapid and continuous testing of batches of samples. The encoder provides precise angular feedback, ensuring that each cuvette accurately stops at the detection point, achieving automated and reliable measurement.

[0034] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A multi-channel rapid pesticide residue detection device, characterized in that: Includes a rotating shaft (2), which is rotatably mounted on the upper part of the inner cavity of the housing (1) via a bearing seat. The main body of the rotating shaft (2) is inserted vertically into the hollow reducer (3). An encoder (4) is connected to the bottom end of the rotating shaft (2). A detachable sample tray (5) is installed on the top of the rotating shaft (2). The sample tray (5) is connected to the rotating shaft (2) via a spline. Multiple placement slots (51) for placing cuvettes (6) are provided around the sample tray (5). Two handles (9) are fixedly installed side by side on the upper surface of the sample tray (5).

2. The multi-channel rapid pesticide residue detection device as described in claim 1, characterized in that: The bearing seat is fixed above the housing (1) and provides rotational support for the rotating shaft (2).

3. The multi-channel rapid pesticide residue detection device as described in claim 1, characterized in that: The hollow reducer (3) is fixed to the upper part of the inner cavity of the housing (1) by bolts, and the hollow reducer (3) drives the rotating shaft (2) to rotate.

4. The multi-channel rapid pesticide residue detection device as described in claim 1, characterized in that: The encoder (4) is fixed to the bottom of the inner cavity of the housing (1).

5. The multi-channel rapid pesticide residue detection device as described in claim 1, characterized in that: The top of the rotating shaft (2) is provided with a positioning plate (22) and an external spline (21) from bottom to top. The positioning plate (22) is a ring structure.

6. The multi-channel rapid pesticide residue detection device as described in claim 5, characterized in that: The sample tray (5) has an internal spline (53) inside, which meshes with the external spline (21) of the rotating shaft (2).

7. The multi-channel rapid pesticide residue detection device as described in claim 1, characterized in that: The placement groove (51) is circumferentially distributed, and through holes (52) are provided on both sides of the placement groove (51). The through holes (52) are vertically connected to the placement groove (51).

8. The multi-channel rapid pesticide residue detection device as described in claim 1, characterized in that: A light-emitting module (7) and a photoelectric receiving module (8) are installed on the upper part of the housing (1) near its periphery. The light-emitting module (7) and the photoelectric receiving module (8) are distributed on the inner and outer sides of the rotating area of ​​the placement slot (51).

9. The multi-channel rapid pesticide residue detection device as described in claim 8, characterized in that: The light-emitting module (7) is installed on the periphery of the sample tray (5).

10. The multi-channel rapid pesticide residue detection device as described in claim 9, characterized in that: The photoelectric receiving module (8) is located at the bottom of the sample tray (5).

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