Soil nitrogen content detection device

Abstract

The utility model relates to the technical field of soil detection, in particular to a soil nitrogen content detection device which comprises a soil nitrogen content detector, a probe is arranged on the bottom side of the soil nitrogen content detector, supporting frames are symmetrically installed on the two sides of the soil nitrogen content detector in a hinged mode, and supporting wheels are installed at the bottom ends of the supporting frames. Meanwhile, the probe is slidably sleeved with a cleaning frame, a connecting rod is hinged between the end of the cleaning frame and the middle of the supporting frame, and the supporting frame, the supporting wheels and the cleaning frame are matched so that the cleaning frame can be kept in a non-contact state with the ground during probe detection, and soil adhesion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of soil detection, in particular to a soil nitrogen content detection device. Background Art

[0002] Soil is the main source of nitrogen for crop growth. Quantitative measurement of soil nitrogen can effectively guide the rational fertilization of cultivated land, which is beneficial to promoting growth and increasing yield.

[0003] When using a soil nitrogen content detector to test the soil, the probe of the soil nitrogen content detector is vertically inserted into the soil. A large amount of soil will be attached to the probe during the process of pulling out the probe. For example, Publication (Announcement) No.: CN216771724U, a soil fertilizer nitrogen content detection device, when a person pulls out the detection rod of the soil nitrogen, phosphorus and potassium sensor, the compression spring pushes the structural plate down, and the surface of the detection rod of the soil nitrogen, phosphorus and potassium sensor is wiped by the rubber ring. However, due to the unreasonable structural setting, the structural plate will directly contact the soil during the detection, which directly causes the structural plate itself to be attached with soil before wiping. The soil is even easy to fall to the top side of the structural plate, which has a great impact on the wiping and cleaning function of the structural plate, and also brings great trouble to the subsequent cleaning of the structural plate.

[0004] In summary, the existing technical solutions need to be improved, and thus an improved soil nitrogen content detection device is proposed. Utility Model Content

[0005] The utility model aims at at least solving the problem in the prior art that the probe cleaning piece itself will be stained with soil and dust before cleaning, thereby affecting the cleaning effect.

[0006] The present invention provides a soil nitrogen content detection device, which is achieved by the following specific technical means: comprising a soil nitrogen content detector, a probe is arranged on the bottom side of the soil nitrogen content detector, and support frames are symmetrically hingedly installed on both sides of the soil nitrogen content detector, and support wheels are installed on the bottom end of the support frame. When in use, the support wheels are close to the bottom end of the probe, and the support wheels on both sides of the soil nitrogen content detector are placed on the ground so that the probe is in a state of being vertical to the ground. In the process of pressing down the soil nitrogen content detector, the support wheels on both sides are away from each other, so that the probe is vertically inserted into the soil on the ground. At the same time, a cleaning frame is provided on the sliding sleeve of the probe, and a connecting rod is hingedly connected between the end of the cleaning frame and the middle part of the support frame.

[0007] Preferred technical solution one: a boss one is fixed on the side of the soil nitrogen content detector, a connecting shaft one is rotatably provided on the boss one, the top of the support frame is fixed on the connecting shaft one, and a connecting shaft two is rotatably provided on the bottom end of the support frame, the support wheel sleeve is arranged on the connecting shaft two, and a torsion spring force is connected between the connecting shaft one and the boss one.

[0008] Preferred technical solution 2: Limiting support rod groups are arranged on both sides of the soil nitrogen content detector, and the two groups of limiting support rod groups are respectively connected to the two groups of support frames.

[0009] Preferred technical solution three: the limit support rod group includes a boss 2 fixed on the side of the soil nitrogen content detector, a connecting shaft 3 rotatably arranged on the boss 2, a limit rod is fixed on the connecting shaft 3, a connecting shaft 4 is rotatably installed on the bottom end of the limit rod, a boss 3 is rotatably sleeved on the connecting shaft 4 and the connecting shaft 2, an insert tube is fixed between the two groups of the boss 3, and a sampler is inserted in the insert tube.

[0010] Optimal technical solution four: A parallelogram space is enclosed between the limit rod, the support frame, the soil nitrogen content detector and the insert.

[0011] The above structure enables this solution to have the following beneficial effects:

[0012] 1. The support frame, support wheel and cleaning frame are coordinated to ensure that the cleaning frame can maintain a non-contact state with the ground during probe detection to avoid soil adhesion;

[0013] 2. When in use, the support wheels on both sides of the soil nitrogen content detector are placed on the ground so that the probe is vertical to the ground, and the probe is kept vertically inserted into the ground during the test;

[0014] 3. The limit support rod group cooperates with the support frame to enable the insert tube to remain in a vertical state during testing to prevent the sampler inserted therein from falling. At the same time, the sampler is kept away from the soil nitrogen content detector during testing, which does not affect the force application operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0017] Figure 2 This is an exploded view of the insert and sampler of this solution;

[0018] Figure 3 This is a schematic diagram of the structure of the limit support rod group of this scheme;

[0019] Figure 4 This is a schematic diagram of the structure of the soil nitrogen content detector of this scheme.

[0020] Among them, 1. soil nitrogen content detector, 11. handle, 12. probe, 2. support frame, 3. support wheel, 4. cleaning frame, 5. connecting rod, 6. boss one, 7. connecting shaft one, 8. connecting shaft two, 9. limit support rod group, 91. boss two, 92. connecting shaft three, 93. limit rod, 94. boss three, 95. connecting shaft four, 10. insert, 13. sampler. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Example 1, please refer to Figure 1 and Figure 4 , including a soil nitrogen content detector 1, a probe 12 is arranged at the bottom side of the soil nitrogen content detector 1, convex seats 6 are fixed on both sides of the soil nitrogen content detector 1, a connecting shaft 7 is rotatably arranged on the convex seat 6, a support frame 2 is fixed on the connecting shaft 7, and a connecting shaft 2 8 is rotatably arranged at the bottom end of the support frame 2, a supporting wheel 3 is sleeved on the connecting shaft 2 8, a torsion spring is connected between the connecting shaft 7 and the convex seat 6, and the torsion spring is arranged to provide an elastic force for the supporting wheel 3 to approach the probe 12. When in use, the supporting wheel 3 is close to the bottom end of the probe 12, and the supporting wheels 3 on both sides of the soil nitrogen content detector 1 are placed on the ground so that the probe 12 is in a state vertical to the ground, and the soil is pressed downward. During the process of the soil nitrogen content detector 1, the support wheels 3 on both sides move away from each other, so that the probe 12 is vertically inserted into the ground soil. At the same time, a cleaning frame 4 is slidably sleeved on the probe 12, and a connecting rod 5 is hingedly connected between the end of the cleaning frame 4 and the middle part of the support frame 2. The height of the cleaning frame 4 is higher than the height of the bottom end of the support wheel 3. When the support wheel 3 contacts the ground, the cleaning frame 4 is at a height above the ground. In the process of the support wheel 3 moving outward, the cleaning frame 4 also moves up along the probe 12 under the action of the connecting rod 5, and always keeps away from the ground. After the probe 12 is raised after the detection, the support wheel 3 approaches the probe 12 again, thereby driving the cleaning frame 4 to move down to clean and scrape the probe 12.

[0023] Example 2, based on Example 1, please refer to Figure 1-Figure 3, including a soil nitrogen content detector 1, both sides of the soil nitrogen content detector 1 are provided with limited support rod groups 9, and the two groups of limited support rod groups 9 are respectively connected to the two groups of support frames 2; the limited support rod group 9 includes a convex seat 2 91 fixed on the side of the soil nitrogen content detector 1, a connecting shaft 3 92 rotatably arranged on the convex seat 2 91, a limiting rod 93 is fixedly arranged on the connecting shaft 3 92, a connecting shaft 4 95 is rotatably installed on the bottom end of the limiting rod 93, and a convex seat 3 94 is rotatably sleeved on the connecting shaft 4 95 and the connecting shaft 2 8, and an insert 10 is fixedly arranged between the two groups of convex seats 3 94, and the setting of the limited support rod group 9 is used to ensure that the insert 10 can always maintain a vertical state when the support frame 2 rotates around the convex seat 1 6, a sampler 13 is inserted in the insert 10, and a sampling chamber is opened on the side wall of the sampler 13 in the height direction;

[0024] A parallelogram space is formed between the limiting rod 93 , the support frame 2 , the soil nitrogen content detector 1 and the insert tube 10 .

[0025] Example 3, based on Example 1, please refer to Figure 1-Figure 4 , including a soil nitrogen content detector 1, a handle 11 is fixedly arranged on the top of the soil nitrogen content detector 1, and the setting of the handle 11 is convenient for applying force to insert the probe 12 into the ground soil during detection.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil nitrogen content detection device, comprising a soil nitrogen content detector (1), wherein a probe (12) is arranged at the bottom side of the soil nitrogen content detector (1), characterized in that: The soil nitrogen content detector (1) is symmetrically hingedly mounted with a support frame (2) on both sides, and a support wheel (3) is mounted at the bottom end of the support frame (2). The support wheel (3) is configured to contact the ground before the probe (12) when in use. At the same time, a cleaning frame (4) is slidably sleeved on the probe (12), and a connecting rod (5) is hingedly connected between the end of the cleaning frame (4) and the middle of the support frame (2); Both sides of the soil nitrogen content detector (1) are provided with limited support rod groups (9), and the two groups of limited support rod groups (9) are respectively connected to the two groups of support frames (2); The position-limiting support rod group (9) is connected to the support frame (2) to form a movable parallelogram structure, the support frame (2) serves as one side of the parallelogram structure, and the other side of the parallelogram structure parallel to the soil nitrogen content detector (1) is an insertion tube (10), in which a sampler (13) is inserted.

2. A soil nitrogen content detection device according to claim 1, characterized in that: The height of the cleaning frame (4) is higher than the height of the bottom end of the supporting wheel (3).

3. A soil nitrogen content detection device according to claim 1, characterized in that: A torsion spring is connected between the top of the support frame (2) and the soil nitrogen content detector (1).

4. A soil nitrogen content detection device according to claim 1, characterized in that: The insert (10) maintains a vertical state consistent with the soil nitrogen content detector (1) during the detection process.

5. A soil nitrogen content detection device according to claim 1, characterized in that: The soil nitrogen content detector (1) is provided with a handle (11) on the top.

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