Tomato leaf sampling device

Abstract

The utility model discloses a tomato leaf sampling device which comprises a sampler and a pressing device for the sampler, the sampler is placed on the pressing device, the pressing device comprises a base, a connecting rod, a supporting rod and a pressing rod, the surface of the base is provided with a fixing groove matched with the bottom of the sampler, the bottom of the connecting rod is fixed on the base, and the pressing rod is fixed on the base. One end of the supporting rod is fixed to the top of the connecting rod, a through hole is formed in the supporting rod, a sliding clamping groove is formed in the pressing rod, and one end of the pressing rod is rotationally connected with the supporting rod. According to the utility model, the through hole and the fixing groove are arranged, so that the sampler can be conveniently fixed and limited, the pressing rod and the sliding clamping groove arranged in the pressing rod are arranged, so that a blade sample can be conveniently and quickly cut off by the gland of the sampler and falls into the sampler, the sampler is sealed, and one-time sampling is completed; the device is quick and convenient, avoids sample pollution, can accurately select a sampling position, realizes accurate operation, reduces labor intensity, improves working efficiency, and has very high practical value.

Description

Technical Field

[0001] This utility model belongs to the field of plant sampling technology, specifically relating to a tomato leaf sampling device. Background Technology

[0002] Tomatoes are one of the world's most important crops, widely loved for their rich nutritional value. However, tomato diseases have a serious impact on their yield and quality. Extracting nucleic acids from leaf samples and conducting molecular marker detection is crucial for timely monitoring of disease occurrence and analysis of disease types.

[0003] Existing leaf sampling techniques have the following problems: 1. Current tomato leaf sampling requires cutting appropriately sized leaves with scissors, curling them, and collecting them in centrifuge tubes. This is not only time-consuming and labor-intensive but also prone to cross-contamination due to human factors. 2. Existing plant leaf sampling devices use perforation or cutting to collect samples. These devices are difficult to clean, and multiple samples may contain sap from other leaves, leading to cross-contamination and affecting subsequent testing. 3. Existing samplers do not consider sampling leaves with highly infectious diseases. If the sampler is not thoroughly disinfected, it can become a source of disease transmission, causing large-scale outbreaks of tomato diseases and affecting tomato yield. 4. Existing samplers temporarily store samples after collection, which may lead to sample contamination during transportation, thus affecting test results. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model researches and designs a tomato leaf sampling device, the purpose of which is to provide a tomato leaf sampling device that is quick, convenient, pollution-free, and precise in operation, reducing labor intensity and improving work efficiency.

[0005] The technical solution of this utility model:

[0006] A tomato leaf sampling device includes a sampler and a pressing device for the sampler. The sampler is placed on the pressing device. The pressing device includes a base, a connecting rod, a support rod, and a pressing rod. The surface of the base is provided with a fixing groove that matches the bottom of the sampler. The bottom of the connecting rod is fixed to the base. One end of the support rod is fixed to the top of the connecting rod. The support rod is provided with a through hole. The pressing rod is provided with a sliding groove and one end of the pressing rod is rotatably connected to the support rod.

[0007] Preferably, a spring is connected between the pressure rod and the support rod, with one end of the spring fixed to a spring retainer on the inner side of the pressure rod and the other end of the spring fixed to a spring retainer on the upper surface of the support rod.

[0008] Preferably, one end of the pressure rod is open, and the two sides of the open end of the pressure rod are sleeved on both sides of one end of the support rod and rotatably connected to the support rod through a pivot pin.

[0009] Preferably, the sampler is a centrifuge tube.

[0010] Preferably, the width of the sliding slot matches the diameter of the sampler's cap.

[0011] Preferably, the inner diameter of the through hole matches the outer diameter of the sampler.

[0012] Preferably, the through hole is located on the support rod at the end opposite to the connecting rod.

[0013] Preferably, the fixing groove is located directly below the through hole.

[0014] Preferably, the support rod and the base are both perpendicular to the connecting rod.

[0015] The beneficial effects of this utility model are as follows: This utility model has a reasonable structure and novel design. It is equipped with through holes and fixing grooves to facilitate the fixing and limiting of the sampler. It is equipped with a pressure rod and a sliding slot set in the pressure rod to facilitate the sampler cap to quickly cut off the blade sample and let it fall into the sampler and seal the sampler to complete one sampling. It is not only fast and convenient, avoids sample contamination, and can accurately select the sampling position, achieve precise operation, reduce labor intensity, and improve work efficiency, but also has high practical value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the pressing device in this utility model;

[0018] Figure 3 This is a top view of the internal structure of the pressure bar in this utility model;

[0019] The components are: 1. Sampler, 2. Base, 3. Connecting rod, 4. Support rod, 5. Pressure rod, 6. Fixing groove, 7. Through hole, 8. Sliding slot, 9. Spring, 10. Spring retaining buckle, 11. Shaft pin. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-3As shown, a tomato leaf sampling device includes a sampler 1 and a pressing device for the sampler 1. The sampler 1 is placed on the pressing device. The pressing device includes a base 2, a connecting rod 3, a support rod 4, and a pressing rod 5. The surface of the base 2 is provided with a fixing groove 6 that is adapted to the bottom of the sampler 1. The bottom of the connecting rod 3 is fixed on the base 2. One end of the support rod 4 is fixed to the top of the connecting rod 3. The support rod 4 is provided with a through hole 7. The pressing rod 5 is provided with a sliding groove 8 and one end of the pressing rod 5 is rotatably connected to the support rod 4.

[0022] like Figure 1 , Figure 2 As shown, in this embodiment, a spring 9 is connected between the pressure rod 5 and the support rod 4. The spring 9 is located near the connecting rod 3. One end of the spring 9 is fixed to the spring fixing buckle 10 on the inner side of the pressure rod 5, and the other end of the spring 9 is fixed to the spring fixing buckle 10 on the upper surface of the support rod 4.

[0023] like Figure 1 , Figure 2 As shown, in this embodiment, one end of the pressure rod 5 is open, and the two sides of the open end of the pressure rod 5 are sleeved on both sides of one end of the support rod 4 and are rotatably connected to the support rod 4 through the shaft pin 11.

[0024] like Figure 1 As shown, in this embodiment, the sampler 1 is a 2mL centrifuge tube, which is existing technology, and its structure will not be described in detail here.

[0025] like Figure 3 As shown, in this embodiment, the width of the sliding groove 8 matches the diameter of the centrifuge tube cap. During sampling, the centrifuge tube cap slides into the sliding groove 8.

[0026] like Figure 1 As shown, in this embodiment, the inner diameter of the through hole 7 is 12mm, and the inner diameter of the through hole 7 matches the outer diameter of the centrifuge tube.

[0027] like Figure 1 , Figure 2 As shown, in this embodiment, the through hole 7 is provided on the support rod 4 at one end away from the connecting rod 3.

[0028] like Figure 1 , Figure 2 As shown, in this embodiment, the fixing groove 6 is located directly below the through hole 7.

[0029] like Figure 1 , Figure 2 As shown, in this embodiment, the support rod 4 and the base 2 are both perpendicular to the connecting rod 3, and the height of the support rod 4 is set to ensure that the cap of the centrifuge tube is above the upper surface of the support rod 4.

[0030] Specific usage process: as follows Figure 1As shown, in actual use, in this embodiment, the centrifuge tube body passes through the through hole 7 on the support rod 4 and the bottom of the centrifuge tube is placed in the fixing groove 6 directly below the through hole 7. When in use, tomato leaves are placed at the opening of the centrifuge tube, and the pressure rod 5 is pressed. During the process of pressing the pressure rod 5 downward, the cap of the centrifuge tube is placed in the sliding groove 8 and slides with the sliding groove 8. Under the action of force, the cap of the centrifuge tube cuts off the circular sample, the circular sample falls into the centrifuge tube and makes the cap of the centrifuge tube close to the opening of the centrifuge tube, completing one sampling. When the pressing ends, the pressure rod 5 returns to its original position under the action of the spring 9. In this embodiment, the sampler is a 2mL centrifuge tube, which is the same as the consumable for the next nucleic acid extraction step, reducing contamination in intermediate steps. A through hole 7 and a fixing groove 6 are provided to facilitate the fixing and limiting of the centrifuge tube. A pressure rod 5 and a sliding slot 8 set in the pressure rod 5 are provided to facilitate the quick cutting of the sample leaf from the centrifuge tube cap, allowing it to fall into the centrifuge tube and the centrifuge tube cap to be closed, completing one sampling. This is not only quick and convenient, avoiding sample contamination, but also allows for accurate selection of the sampling position, achieving precise operation, reducing labor intensity, and improving work efficiency.

[0031] In summary, this utility model achieves the expected results.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A tomato leaf sampling device, characterized in that: The device includes a sampler and a pressing device for the sampler. The sampler is placed on the pressing device, which includes a base, a connecting rod, a support rod, and a pressing rod. The base has a fixing groove on its surface that matches the bottom of the sampler. The bottom of the connecting rod is fixed to the base. One end of the support rod is fixed to the top of the connecting rod. The support rod has a through hole. The pressing rod has a sliding groove and one end of the pressing rod is rotatably connected to the support rod.

2. The tomato leaf sampling device as described in claim 1, characterized in that: A spring connects the pressure rod and the support rod. One end of the spring is fixed to a spring retainer on the inner side of the pressure rod, and the other end of the spring is fixed to a spring retainer on the upper surface of the support rod.

3. The tomato leaf sampling device as described in claim 1, characterized in that: One end of the pressure rod is open, and the two sides of the open end of the pressure rod are sleeved on both sides of one end of the support rod and are rotatably connected to the support rod through a pivot pin.

4. The tomato leaf sampling device as described in claim 1, characterized in that: The sampler is a centrifuge tube.

5. The tomato leaf sampling device as described in claim 1, characterized in that: The width of the sliding slot matches the diameter of the sampler's cap.

6. The tomato leaf sampling device as described in claim 1, characterized in that: The inner diameter of the through hole matches the outer diameter of the sampler.

7. The tomato leaf sampling device as described in claim 1, characterized in that: The through hole is located on the support rod at one end away from the connecting rod.

8. The tomato leaf sampling device as described in claim 1, characterized in that: The fixing groove is located directly below the through hole.

9. The tomato leaf sampling device as described in claim 1, characterized in that: The support rod and the base are both perpendicular to the connecting rod.

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