Portable soil herbicide residue detector

Abstract

The utility model discloses a portable soil herbicide residue detector which comprises a shell composed of a bottom plate and a cover plate, the bottom plate and the cover plate are hinged through a hinge arranged on the rear side, and the front end of the bottom plate and the front end of the cover plate are provided with a lock tongue and a lock hole respectively; a transparent sealing cover plate is arranged on the observation window; a measuring cylinder is mounted at the sample adding hole through threads; a positioning ring is arranged on the upper surface of the bottom plate, a sealing ring is arranged on the lower bottom surface of the cover plate, the shell of the portable soil herbicide residue detector can be repeatedly used, only the test strip needs to be replaced, the detection cost is reduced, the sealing performance of the shell of the detector is excellent, the unsealed test strip can be stored for a long time, and the detection efficiency is improved. The test paper detector has the convenience of disposable test paper in use, can be used for recycling, cleaning and reloading the test paper in a centralized manner after being used, is convenient for next use, saves the detection cost, and is small and exquisite in structure, convenient to carry on a large scale, simple in structure and low in production cost.

Description

Technical Field

[0001] This utility model relates to the field of soil herbicide residue detection technology, specifically a portable soil herbicide residue detector. Background Technology

[0002] Weeds are plants that have adapted to local crops, cultivation, farming, climate, soil, and other ecological and production conditions over a long period. They harm crops in various ways, competing with them for nutrients, water, and sunlight, spreading pests and diseases, reducing crop yield and quality, and increasing labor and production costs for farmland management. Therefore, herbicides are an important guarantee for stable and efficient agricultural production. However, herbicide residues in the soil can pollute the land to varying degrees, causing soil degradation and affecting production. Therefore, periodic soil remediation is necessary. Before remediation, it is necessary to test for the types of herbicides remaining in the soil. Existing test strips are usually test strips wrapped in a shell with a sample application hole and observation window. They are disposable products, and the amount of material used in the shell is much greater than that of the test strip. To reduce testing costs, we have designed a reusable shell, specifically a portable soil herbicide residue detector. Utility Model Content

[0003] The technical problem to be solved by this invention is to overcome the existing defects and provide a portable soil herbicide residue detector that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a portable soil herbicide residue detector, comprising a shell consisting of a base plate and a cover plate, with a test strip held between the base plate and the cover plate, and the cover plate having a sample application hole, an observation window, and a detection mark; the base plate and the cover plate are hinged together by a hinge located on the rear side, and the front ends of the base plate and the cover plate are respectively provided with a locking tongue and a locking hole; a transparent sealing cover plate is provided on the observation window, and a measuring cylinder is threadedly installed at the sample application hole; a positioning ring is provided on the upper surface of the base plate, and a sealing ring is provided on the lower bottom surface of the cover plate.

[0005] As a preferred embodiment of this utility model, the measuring cylinder is made of transparent material and has graduation strips on its wall.

[0006] As a preferred technical solution of this utility model, the top two sides of the locking tongue are elastic limiting pieces that are smaller at the top and larger at the bottom, and the overall shape is arrow-shaped.

[0007] As a preferred embodiment of this invention, the sealing ring is an elastic rubber product.

[0008] As a preferred embodiment of this utility model, the length-to-width ratio of the positioning ring is the same as that of the test strip, and the area enclosed by the positioning ring is smaller than the area of ​​the test strip.

[0009] As a preferred embodiment of this invention, the thickness of the positioning ring is less than the thickness of the sealing ring.

[0010] As a preferred embodiment of this utility model, the test strip includes a PVC base plate, and a sample pad, a colloidal gold bonding pad, an NC film, and an absorbent pad sequentially spliced ​​on the PVC base plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the outer shell of this portable soil herbicide residue detector is reusable, and only the test strip needs to be replaced, which reduces the detection cost. The outer shell of this detector has excellent sealing performance, which can preserve the opened test strip for a long time. It has the convenience of disposable test strips when in use, and after use, the test strips can be collected, cleaned and reloaded for the next use, saving detection costs. The detector is compact in structure, easy to carry in large quantities, simple in structure and low in production cost. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the rear structure of this utility model.

[0014] In the diagram: 1. Base plate, 2. Cover plate, 3. Sample filling hole, 4. Observation window, 5. Locking tongue, 6. Locking hole, 7. Positioning ring, 8. Sealing ring, 9. Measuring cylinder, 10. Scale strip, 11. Test strip, 12. Detection mark. Detailed Implementation

[0015] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-2 The present invention provides a technical solution: a portable soil herbicide residue detector, comprising a shell consisting of a base plate 1 and a cover plate 2, wherein a test strip 11 is held between the base plate 1 and the cover plate 2, and the cover plate 2 is provided with a sample application hole 3, an observation window 4 and a detection mark 12;

[0017] The test strip 11 includes a PVC base plate, and a sample pad, a colloidal gold bonding pad, an NC membrane and an absorbent pad sequentially spliced ​​on the PVC base plate;

[0018] The base plate 1 and the cover plate 2 are hinged together by a hinge located on the rear side. The front ends of the base plate 1 and the cover plate 2 are respectively provided with a lock tongue 5 and a lock hole 6. The top two sides of the lock tongue 5 are elastic limiting pieces that are smaller at the top and larger at the bottom. The overall shape is arrow-shaped. When the base plate 1 and the cover plate 2 are closed, the top of the lock tongue 5 passes through the lock hole 6. The bottom of the elastic limiting piece deforms during the process of passing through the lock hole 6, and returns to its original shape after disengaging from the lock hole 6, thus limiting the lock hole 6 to the lower part of the lock tongue 5. When it is necessary to unlock, the two elastic limiting pieces are pinched down with two fingers so that the bottom width is smaller than the width of the lock hole 6, and the lock tongue 5 can disengage from the lock hole 6 to achieve the purpose of unlocking.

[0019] A transparent sealing cover is provided on the observation window 4. A measuring cylinder 9 is installed at the sample application hole 3 by means of threads, which has good sealing performance. The measuring cylinder 9 is made of transparent material and has a scale strip 10 on the cylinder wall for easy quantitative sample measurement. After the sample is measured, the opening of the measuring cylinder 9 is facing upward. The detector is flipped over and the opening of the measuring cylinder 9 is screwed into the sample application hole 3. Then the detector is flipped over again. At this time, the sample in the measuring cylinder 9 is dripped into the test strip 11 for testing.

[0020] A positioning ring 7 is provided on the upper surface of the base plate 1. The length-to-width ratio of the positioning ring 7 is the same as that of the test strip 11. The area enclosed by the positioning ring 7 is smaller than the area of ​​the test strip 11. The positioning ring 7 is used to position the test strip 11 when it is placed. After the cover is closed, the cover plate 2 presses the test strip 11 onto the positioning ring 7 to prevent the test strip 11 from moving. A sealing ring 8 is provided on the bottom surface of the cover plate 2. The sealing ring 8 is made of elastic rubber. After the base plate 1 and the cover plate 2 are closed, the sealing ring 8 deforms elastically, so that the space enclosed inside is sealed to preserve the opened test strip for a long time. Therefore, the thickness of the positioning ring 7 must be less than the thickness of the sealing ring 8.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable soil herbicide residue detector, comprising a shell consisting of a base plate (1) and a cover plate (2), wherein a test strip (11) is held between the base plate (1) and the cover plate (2), and the cover plate (2) is provided with a sample application hole (3), an observation window (4) and a detection mark (12), characterized in that: The base plate (1) and the cover plate (2) are hinged together by a hinge located on the rear side. The front ends of the base plate (1) and the cover plate (2) are respectively provided with a locking tongue (5) and a locking hole (6). A transparent sealing cover is provided on the observation window (4), and a measuring cylinder (9) is installed at the sample addition hole (3) by means of threads; The upper surface of the base plate (1) is provided with a positioning ring (7), and the lower bottom surface of the cover plate (2) is provided with a sealing ring (8).

2. The portable soil herbicide residue detector according to claim 1, characterized in that: The measuring cylinder (9) is made of transparent material and has graduation strips (10) on its wall.

3. The portable soil herbicide residue detector according to claim 1, characterized in that: The top two sides of the latch (5) are elastic limiting pieces that are smaller at the top and larger at the bottom, and the overall shape is arrow-shaped.

4. The portable soil herbicide residue detector according to claim 1, characterized in that: The sealing ring (8) is an elastic rubber product.

5. A portable soil herbicide residue detector according to claim 1, characterized in that: The length-to-width ratio of the positioning ring (7) is the same as that of the test strip (11), and the area enclosed by the positioning ring (7) is smaller than the area of ​​the test strip (11).

6. The portable soil herbicide residue detector according to claim 1, characterized in that: The thickness of the positioning ring (7) is less than the thickness of the sealing ring (8).

7. A portable soil herbicide residue detector according to claim 1, characterized in that: The test strip (11) includes a PVC base plate, and a sample pad, a colloidal gold bonding pad, an NC membrane and an absorbent pad sequentially spliced ​​on the PVC base plate.

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