Pesticide residue detection test paper photographing device
By designing a photographic device for pesticide residue test strips, the problems of ambient light interference and unstable mobile phone cameras were solved, enabling high-quality recording of pesticide residue test results and ensuring the accuracy and reliability of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-14
AI Technical Summary
In pesticide residue testing, ambient light interference, unstable mobile phone camera position, and shooting angle issues can lead to unsatisfactory photo results, affecting the accuracy and reliability of the test results.
A photographic device for pesticide residue testing strips was designed, including a dark box, a cover plate, a stage, a mobile phone holder, a telescopic sleeve, and a supplementary light. The dark box creates a stable lighting environment and fixes the position of the mobile phone. The supplementary light provides supplementary lighting to ensure photographic quality. The stage fixes the position of the test strip and records the colorimetric card information.
It improves image quality, ensures the accuracy and reliability of test results, reduces light interference, fixes the position of the test strip, meets diverse imaging needs, and improves testing efficiency and flexibility.
Smart Images
Figure CN224124194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pesticide residue detection technology, and in particular to a device for photographing pesticide residue test strips. Background Technology
[0002] With the increasing prominence of food safety issues, pesticide residue testing has gradually become a crucial link in ensuring the quality and safety of agricultural products. Among the many methods for pesticide residue testing, the colorimetric test strip method is widely used due to its advantages such as ease of operation, low cost, and rapid detection. This method works by having the test strip react chemically with pesticide residues to produce a specific color, thus visually reflecting the pesticide residue level. However, the intensity of the color after the test strip develops often directly determines the accuracy of the test results. Some tests also require archiving, therefore, it is necessary to photograph the test strip after the color development process.
[0003] Photo recording not only preserves the original image of the test results, facilitating subsequent analysis and comparison, but also provides evidentiary support for potential disputes. In practice, issues such as ambient light interference, unstable phone camera positions, and shooting angles often lead to unsatisfactory photo results, affecting the accuracy and reliability of the results. Therefore, a device for photographing pesticide residue test strips that provides a stable shooting environment, avoids ambient light interference, fixes the phone's position, and accurately focuses on the test strip is particularly important. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model discloses a photographic device for pesticide residue test strips.
[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:
[0006] A photographic device for pesticide residue testing strips includes a dark box with an open front side.
[0007] A cover plate is installed on the open side of the dark box to close it.
[0008] The stage, located inside the dark box, is used to hold the test strips;
[0009] A phone holder, installed on top of the dark box, is used to hold a phone.
[0010] A telescopic sleeve is installed on the top of the dark box on one side corresponding to the phone holder, and an opening is provided on the top of the dark box corresponding to the telescopic sleeve; when the phone is clamped on the phone holder, the top of the telescopic sleeve abuts against the phone's camera area.
[0011] A fill light is installed at the top inside the dark box to provide supplemental lighting during photography.
[0012] Preferably, the stage includes a support base, and two positioning posts are spaced apart on one side of the top of the support base, with elastic pressure plates for pressing the test paper installed on the positioning posts.
[0013] Preferably, the support base has a groove on the side opposite to the positioning post to prevent the colorimetric card from being inserted.
[0014] Preferably, a column is provided on one side of the dark box, and multiple slots are provided on the column from bottom to top; a plug corresponding to and adapted to the slots is provided on one side of the platform.
[0015] Preferably, the dark box is provided with a positioning seat, and the top of the positioning seat is provided with a reagent bottle positioning groove and a test paper positioning groove.
[0016] Preferably, the telescopic sleeve includes a flexible sleeve with one end communicating with the opening at the top of the dark box, the top of the flexible sleeve is provided with a flange, and a spring is provided on the outer sleeve of the flexible sleeve.
[0017] Preferably, the dark box has a limiting frame on the open side, and a permanent magnet that can be magnetically connected to the cover plate is provided on the limiting frame; a boss is provided on one side of the cover plate, and the dark box has a notch at the position corresponding to the boss.
[0018] Preferably, the top of the dark box is provided with a hand-twisting slide corresponding to the position of the mobile phone holder. The mobile phone holder is installed on the hand-twisting slide, and the position of the mobile phone holder is adjusted by the hand-twisting slide so that the camera of the mobile phone is aligned with the telescopic sleeve.
[0019] By adopting the technical solution described above, this utility model has the following beneficial effects:
[0020] (1) This utility model has a simple structure. The dark box can create a photography environment that avoids interference from ambient light. The cover plate and the dark box are connected by a permanent magnet. When it is necessary to open the cover plate, the cover plate can be easily removed by using the protrusion, which is convenient to operate and ensures the sealing of the dark box. The design of the telescopic sleeve pushes the flexible sleeve upward through the elastic action of the spring, so that the flange is pressed tightly against the bottom of the mobile phone, realizing an effective seal between the flexible sleeve and the mobile phone, preventing ambient light from entering the dark box from the mobile phone camera, thereby ensuring stable light during photography, improving the quality of photography, and avoiding deviations in the detection results due to light interference.
[0021] (2) The present invention further provides a positioning post and an elastic pressure plate on one side of the support base of the stage, which can press the test strip firmly on the support base to prevent the test strip from accidentally falling off and ensure that the position of the test strip is fixed when taking pictures, which is conducive to obtaining clear and accurate images. A groove is provided on the side of the support base away from the positioning post for placing the colorimetric card. When taking pictures, the colorimetric card information can be recorded at the same time, which is convenient for subsequent comparison and analysis and improves the accuracy of the test results.
[0022] (3) This utility model further adds a column inside the dark box on one side, with multiple slots evenly spaced on the column. The stage is equipped with a plug that matches the slot. Users can adjust the distance between the stage and the mobile phone according to different photography needs, satisfying diverse photography operations, increasing the flexibility and applicability of the device, which is conducive to obtaining the best shooting effect at different distances and improving the reliability of detection.
[0023] (4) The present invention further includes a supplementary light installed at the top inside the dark box, which can be turned on to provide supplementary light when it is necessary to take pictures. Its fixed color temperature design avoids color difference in the picture caused by color temperature changes, ensures the effectiveness of the record, and ensures that the color of the picture is true and accurate, providing a reliable visual basis for subsequent detection and analysis.
[0024] (5) The present invention further provides a positioning seat in the dark box, with a reagent bottle positioning groove and a test paper positioning groove on the top for placing the reagent bottle and test paper containing the reagent, making it more convenient to take out the reagent and test paper during the experiment, improving the efficiency of the experimental operation, saving time, and facilitating the smooth progress of the detection work. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a top view of the present invention;
[0027] Figure 3 This is a schematic diagram of the internal structure of the black box;
[0028] Figure 4 This is a schematic diagram of the positioning seat.
[0029] Figure 5 A schematic diagram of the installation structure for the supplementary lighting;
[0030] Figure 6 This is a schematic diagram of the stage structure.
[0031] In the diagram: 1. Dark box; 2. Cover plate; 3. Stage; 3-1. Support base; 3-2. Positioning post; 3-3. Elastic pressure plate; 3-4. Groove; 4. Mobile phone holder; 5. Telescopic sleeve; 5-1. Flexible sleeve; 5-2. Flanged edge; 5-3. Spring; 6. Fill light; 7. Column; 8. Slot; 9. Plug; 10. Positioning base; 11. Limiting frame; 12. Permanent magnet; 13. Hand-tightening slide. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0033] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0035] Example 1:
[0036] Combined with appendix Figures 1-6 A photographic device for pesticide residue testing strips includes a dark box 1, a cover plate 2, a stage 3, and a mobile phone holder 4. The dark box 1 is designed to create a photographic environment that avoids interference from ambient light, and its front is open. A cover plate 2 is fitted to the open side of the dark box 1 to close it.
[0037] A particularly important point to note is that the cover plate 2 and the dark box 1 can be both opened and closed, and also detached. This design is primarily for facilitating various operations inside the dark box 1. Specifically, a limiting frame 11 is provided on the open side of the dark box 1, and a permanent magnet 12, which can magnetically connect with the cover plate 2, is installed on this limiting frame 11. Meanwhile, a protrusion is provided on one side of the cover plate 2, and a notch is correspondingly made on the dark box 1 at the position of the protrusion. In this way, the cover plate 2 can be firmly attracted to the limiting frame 11 by means of the permanent magnet 12, thus achieving the closure of the dark box 1. When it is necessary to open the cover plate 2, the protrusion structure of the cover plate 2 can be used to easily and conveniently remove the cover plate 2.
[0038] Inside the darkroom 1, a stage 3 is installed to hold the test strips. This means that the test strips, after the colorimetric reaction, can be placed on stage 3, awaiting subsequent photographing. (See attached image) Figure 6 As shown, the stage 3 includes a support base 3-1. Two positioning posts 3-2 are spaced apart on one side of the top of the support base 3-1. An elastic pressure plate 3-3 is installed on top of the positioning posts 3-2 to press the test strip firmly. With this structural design, in actual operation, the test strip can be placed on the support base 3-1 first, and then the two elastic pressure plates 3-3 can be used to press the test strip firmly, effectively preventing the test strip from accidentally detaching from the support base 3-1.
[0039] In addition, a groove 3-4 is provided on the side of the support 3-1 opposite to the positioning post 3-2. The main purpose of this groove 3-4 is to hold the colorimetric card. When taking photos, the colorimetric card can be placed in this groove 3-4, which makes it easy to record the relevant information of the colorimetric card at the same time as taking the photo, facilitating subsequent comparative analysis.
[0040] At the top of the darkroom 1, a commercially available phone holder 4 is installed, allowing the phone holder 4 to be fixed in place at the top of the darkroom 1. Furthermore, a telescopic sleeve 5 is installed on the side of the top of the darkroom 1 corresponding to the phone holder 4, with an opening corresponding to the telescopic sleeve 5. When the phone is mounted on the phone holder 4, the top of the telescopic sleeve 5 will contact the phone's camera lens, preventing ambient light from entering the darkroom 1 from the location of the telescopic sleeve 5 and affecting the photo quality.
[0041] Additionally, a fill light 6 is installed at the top inside the dark box 1. This fill light 6 can be turned on to provide additional illumination for the scene when taking photos. However, it is crucial to ensure that the color temperature of the fill light 6 remains constant. This is to prevent color differences in the photos caused by color temperature variations, which could lead to recording errors.
[0042] Example 2:
[0043] Combined with appendix Figure 3This invention discloses a photographic device for pesticide residue testing strips, which is a further optimization of the design of the previous embodiment. Specifically, a column 7 is added to one side inside the dark box 1, and multiple slots 8 are evenly spaced from bottom to top on the column 7. Simultaneously, a plug 9 matching the slots 8 is provided on one side of the stage 3, and the plug 9 is tightly connected to one side of the support base 3-1, ensuring a stable connection. In actual operation, the user can insert the plug 9 into different slots 8 according to different photographic needs, thereby adjusting the distance between the stage 3 and the mobile phone, providing convenience for diverse photographic operations.
[0044] Example 3:
[0045] Combined with appendix Figure 4 The pesticide residue testing strip photographing device of the present invention further improves the internal structure based on Embodiment 1 or 2. Specifically, a positioning seat 10 is provided inside the box 1. The top of the positioning seat 10 is designed with a reagent bottle positioning groove and a test strip positioning groove for placing the reagent bottle and test strip containing the reagent. This design makes the use of reagents and test strips more convenient during the experiment, thus improving the efficiency of the experimental operation.
[0046] Example 4:
[0047] Similarly, combined with the appendix Figure 3 Based on any one of the embodiments in Examples 1 to 3, the telescopic sleeve 5 of the present invention is described in detail. The telescopic sleeve 5 includes a flexible sleeve 5-1 with one end tightly connected to the opening at the top of the dark box 1. The top edge of the flexible sleeve 5-1 is provided with a flange 5-2, and a spring 5-3 is sleeved on the outside of the flexible sleeve 5-1. The top of the spring 5-3 is in close contact with the flange 5-2. Through the elastic action of the spring 5-3, the flexible sleeve 5-1 can be pushed upward to extend until the flange 5-2 is tightly pressed against the bottom of the mobile phone, thereby achieving an effective seal between the flexible sleeve 5-1 and the mobile phone and ensuring the stability of the detection environment.
[0048] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.
Claims
1. A pesticide residue test paper photographing device, characterized by comprising: include: The dark box (1) has an open front side; Cover plate (2) is installed on the open side of the dark box (1) to close the dark box (1); The stage (3) is located inside the dark box (1) and is used to hold the test paper; A mobile phone holder (4) is installed on the top of the dark box (1) to hold the mobile phone; The telescopic sleeve (5) is installed on the top of the dark box (1) on the side corresponding to the mobile phone bracket (4), and the top of the dark box (1) is provided with an opening corresponding to the telescopic sleeve (5); when the mobile phone is clamped on the mobile phone bracket (4), the top of the telescopic sleeve (5) is in contact with the mobile phone camera part. A fill light (6) is installed at the top inside the dark box (1) to provide fill light during photography.
2. The pesticide residue test strip photographing device as described in claim 1, characterized in that: The stage (3) includes a support base (3-1), and two positioning posts (3-2) are spaced apart on one side of the top of the support base (3-1). An elastic pressure plate (3-3) for pressing the test paper is installed on the positioning post (3-2).
3. The pesticide residue test strip photographing device as described in claim 2, characterized in that: The support base (3-1) has a groove (3-4) on the side opposite to the positioning post (3-2) to prevent the colorimetric card from being inserted.
4. The pesticide residue test strip photographing device as described in claim 1, characterized in that: The dark box (1) has a column (7) on one side, and multiple slots (8) are provided on the column (7) from bottom to top; the platform (3) has a plug (9) on one side that corresponds to and is compatible with the slots (8).
5. The pesticide residue test strip photographing device as described in claim 1, characterized in that: The dark box (1) is equipped with a positioning seat (10), and the top of the positioning seat (10) is provided with a reagent bottle positioning groove and a test paper positioning groove.
6. The pesticide residue test strip photographing device as described in claim 1, characterized in that: The telescopic sleeve (5) includes a flexible sleeve (5-1) with one end connected to the opening at the top of the dark box (1). The top of the flexible sleeve (5-1) is provided with a flange (5-2), and a spring (5-3) is provided on the outer sleeve of the flexible sleeve (5-1).
7. The pesticide residue test strip photographing device as described in claim 1, characterized in that: The dark box (1) has a limiting frame (11) on its open side, and a permanent magnet (12) that can be magnetically connected to the cover plate (2) is provided on the limiting frame (11); a boss is provided on one side of the cover plate (2), and a notch is provided in the dark box (1) at the position corresponding to the boss.
8. The photographic device for pesticide residue testing strips as described in claim 1, characterized in that: The top of the dark box (1) is provided with a hand-twisting slide (13) corresponding to the position of the mobile phone bracket (4). The mobile phone bracket (4) is installed on the hand-twisting slide (13). The position of the mobile phone bracket (4) is adjusted by the hand-twisting slide (13) so that the camera of the mobile phone is aligned with the telescopic sleeve (5).