Soil sensor

Abstract

The utility model discloses a soil sensor which comprises a sensor body, a cable is fixedly installed at the top of the sensor body, a probe is fixedly installed at the bottom of the sensor body, a reinforcing seat is installed between the sensor body and the probe, a sealing seat is fixedly arranged at the top of the reinforcing seat, and a limiting cylinder is fixedly arranged at the bottom of the reinforcing seat. And the limiting cylinders sleeve the outer sides of the probes, meanwhile, supporting sheets are installed between the limiting cylinders, and every two adjacent sets of limiting cylinders are supported and reinforced through the supporting sheets. According to the soil sensor, the roots of the four groups of probes are supported and reinforced through the four groups of limiting cylinders, and meanwhile, the four groups of limiting cylinders are reinforced through the four groups of uniformly distributed supporting sheets, so that the stress strength of the four groups of probes can be increased, and the probes are not easy to deform and bend when being in contact with hard objects such as stones in soil; and normal secondary use of the sensor body is ensured.

Description

Technical Field

[0001] The utility model relates to the field of soil sensors, and specifically relates to a soil sensor. Background Technique

[0002] The working principles of soil moisture detection sensors mainly include the following:

[0003] Resistive type: By measuring the change of soil resistance to reflect the soil moisture content, and the change of soil moisture content will cause the change of resistance value;

[0004] Capacitive type: Utilize the relationship between the change of soil dielectric constant and moisture content for detection, and different moisture contents will affect the capacitance;

[0005] Frequency domain reflectometry (FDR): The sensor emits electromagnetic waves of a certain frequency, and calculates the soil moisture content according to the intensity of the reflected signal;

[0006] Taking the soil humidity sensor with the model FY-H2 as an example: Three groups of probes are arranged at the end of this sensor. When the three groups of probes are inserted into the soil for use, hard objects in the soil will hit the probes of the sensor, and the probes are prone to bending deformation, affecting secondary use. Content of the Utility Model

[0007] The purpose of the utility model is to provide a soil sensor to solve the defects mentioned in the above background technique.

[0008] To achieve the above purpose, a soil sensor is provided, including a sensor body. A cable is fixedly installed at the top of the sensor body, and a probe is fixedly installed at the bottom of the sensor body. At the same time, a reinforcing seat is installed between the sensor body and the probe. A sealing seat is fixedly arranged at the top of the reinforcing seat, and a limiting cylinder is fixedly arranged at the bottom of the reinforcing seat. The limiting cylinder is sleeved on the outside of the probe. At the same time, a support piece is installed between the limiting cylinders, and adjacent two groups of limiting cylinders are supported and reinforced by the support piece.

[0009] Preferably, both the sealing seat and the reinforcing seat are circular structures made of plastic materials, and the sealing seat is sleeved on the outside of the bottom of the sensor body.

[0010] Preferably, four groups of notches are evenly opened on the outside of the reinforcing seat, and the cross-section of the notch is arc-shaped.

[0011] Preferably, four groups of limiting cylinders are evenly arranged at the bottom of the reinforcing seat, and the four groups of limiting cylinders are respectively sleeved on the outside of the roots of the four groups of probes.

[0012] Preferably, two groups of positioning ports are formed on the outer surface of the limiting cylinder, and the sizes of the positioning ports are adapted to those of the supporting pieces, and the ends of the supporting pieces are inserted into the positioning ports.

[0013] Preferably, the four supporting pieces are arranged in a square shape, and the four limiting cylinders are supported by the four supporting pieces.

[0014] Preferably, a central opening is formed in the middle of the reinforcing base, and the four central openings are centrosymmetric structures with respect to the central opening of the circle.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the roots of the four probes are supported and reinforced by the four limiting cylinders, and at the same time, the four limiting cylinders are reinforced by the four uniformly distributed supporting pieces, which can increase the stress intensity of the four probes, so that when they contact hard objects such as stones inside the soil, they are not easily deformed and bent, ensuring that the sensor body can be reused normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view schematic diagram of the structure of the utility model;

[0017] Figure 2 is the structure of the utility model Figure 1 bottom view;

[0018] Figure 3 is a schematic diagram of the probe and its reinforcement structure of the utility model;

[0019] Figure 4 is the structure of the utility model Figure 1 side view.

[0020] Reference numerals in the figures: 1, cable; 2, sensor body; 3, sealing seat; 4, notch; 5, reinforcing base; 6, limiting cylinder; 7, supporting piece; 8, central opening; 9, probe; 10, positioning port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Please refer to Figures 1-4 , the utility model provides a soil sensor, which includes a sensor body 2, a cable 1 is fixedly installed at the top of the sensor body 2, a probe 9 is fixedly installed at the bottom of the sensor body 2, a reinforcing base 5 is installed between the sensor body 2 and the probe 9, a sealing seat 3 is fixedly arranged at the top of the reinforcing base 5, a limiting cylinder 6 is fixedly arranged at the bottom of the reinforcing base 5, the limiting cylinder 6 is sleeved outside the probe 9, and a supporting piece 7 is installed between the limiting cylinder 6 and the limiting cylinder 6, and adjacent two limiting cylinders 6 are supported and reinforced by the supporting piece 7.

[0022] Working principle: When in use, when the probe 9 is inserted into the soil, the roots of the four groups of probes 9 are supported and reinforced by the four groups of limiting cylinders 6. At the same time, the four groups of limiting cylinders 6 are reinforced by the four groups of evenly distributed support pieces 7, which can increase the stress intensity of the four groups of probes 9, so that when they come into contact with hard objects such as stones inside the soil, they are not easily deformed or bent, ensuring that the sensor body 2 can be used normally for a second time.

[0023] As a preferred embodiment, both the sealing seat 3 and the reinforcing seat 5 are circular structures made of plastic material, and the sealing seat 3 is sleeved on the outer side of the bottom of the sensor body 2.

[0024] Four notches 4 are evenly opened on the outer side of the reinforcing seat 5, and the cross-section of the notch 4 is arc-shaped.

[0025] The setting of the four notches 4 and the setting of the four notches 4 can reduce the material used in the manufacturing of the reinforcing seat 5 and reduce its manufacturing cost.

[0026] As a preferred embodiment, four limiting cylinders 6 are evenly arranged at the bottom of the reinforcing seat 5, and the four limiting cylinders 6 are respectively sleeved on the outer sides of the roots of the four groups of probes 9.

[0027] Two positioning ports 10 are opened on the outer surface of the limiting cylinder 6, and the positioning ports 10 are adapted to the size of the support piece 7, and the end of the support piece 7 is inserted into the inside of the positioning port 10.

[0028] As shown in Figures 1-4 When the reinforcing seat 5 is installed, hold the reinforcing seat 5 and insert the four limiting cylinders 6 at its bottom into the outer sides of the four groups of probes 9 respectively. At the same time, the reinforcing seat 5 and the reinforcing seat 5 continue to move upward, so that the sealing seat 3 and the reinforcing seat 5 are sleeved on the outer side of the bottom of the sensor body 2. Using the friction force between the sealing seat 3, the reinforcing seat 5 and the sensor body 2, the fixed installation of the sealing seat 3 and the reinforcing seat 5 can be completed.

[0029] As a preferred embodiment, the four support pieces 7 are arranged in a square shape, and the four limiting cylinders 6 are supported by the four support pieces 7.

[0030] A central opening 8 is opened in the middle of the reinforcing seat 5, and the four central openings 8 are centrosymmetric structures with respect to the circular central opening 8.

Claims

1. A soil sensor, comprising a sensor body (2), characterized in that: The cable (1) is fixedly installed on the top of the sensor body (2), and the probe (9) is fixedly installed on the bottom of the sensor body (2). At the same time, a reinforcing seat (5) is installed between the sensor body (2) and the probe (9), and a sealing seat (3) is fixedly arranged on the top of the reinforcing seat (5), and a limiting cylinder (6) is fixedly arranged on the bottom of the reinforcing seat (5), and the limiting cylinder (6) is sleeved on the outside of the probe (9). At the same time, a supporting sheet (7) is installed between the limiting cylinders (6) and the two adjacent groups of limiting cylinders (6) are supported and reinforced by the supporting sheet (7).

2. A soil sensor according to claim 1, characterized in that: The sealing seat (3) and the reinforcing seat (5) are both circular structures made of plastic material, and the sealing seat (3) is sleeved on the outside of the bottom of the sensor body (2).

3. A soil sensor according to claim 1, characterized in that: Four groups of notches (4) are evenly arranged on the outer side of the reinforcing seat (5), and the cross section of the notches (4) is arranged in an arc shape.

4. A soil sensor according to claim 1, characterized in that: Four groups of limiting cylinders (6) are evenly arranged at the bottom of the reinforcing seat (5), and the four groups of limiting cylinders (6) are respectively sleeved on the outside of the roots of the four groups of probes (9).

5. A soil sensor according to claim 1, characterized in that: Two groups of positioning openings (10) are provided on the outer surface of the limiting cylinder (6), and the positioning openings (10) are adapted to the size of the supporting sheet (7), and the ends of the supporting sheet (7) are inserted into the interior of the positioning openings (10).

6. A soil sensor according to claim 5, characterized in that: The four groups of support sheets (7) are arranged in a square shape, and the four groups of limit cylinders (6) are supported by the four groups of support sheets (7).

7. A soil sensor according to claim 4, characterized in that: A central opening (8) is provided in the middle of the reinforcing seat (5), and the four groups of central openings (8) are centrally symmetrical structures with respect to the circular central opening (8).

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