Soil moisture sensor

Abstract

The utility model discloses a soil moisture sensor and relates to the technical field of sensors. The moisture sensor comprises a substrate, the upper and lower ends of the substrate are respectively provided with a moisture sensor body and a main insertion column, the upper part of the moisture sensor body is rotatably matched with a T-shaped screwing rod, the lower end of the T-shaped screwing rod is provided with a screw rod, and the lower part of the screw rod is rotatably matched in the main insertion column; a plurality of isosceles triangle blocks are arranged in the main inserting column in a sliding fit mode, two auxiliary inserting columns corresponding to the isosceles triangle blocks are arranged in the main inserting column in an elastic fit mode, and the isosceles triangle blocks are arranged on the circumferential side of the screw in a threaded fit mode. According to the soil moisture sensor, the screw rod can be conveniently screwed through the T-shaped screwing rod, so that the isosceles triangle block is controlled to move downwards to extrude the auxiliary insertion columns to slide out of the main insertion column, meanwhile, all the auxiliary insertion columns are adjusted, the installation convenience of the soil moisture sensor is improved, the main insertion column is firstly inserted into the soil, then the auxiliary insertion columns are transversely inserted into the soil, and the soil moisture sensor is convenient to install. And the resistance when the main insertion column is pulled out and the installation firmness are improved.

Description

Technical Field

[0001] The utility model belongs to the field of sensors, and in particular relates to a soil moisture sensor. Background Art

[0002] The soil moisture sensor, also known as the soil humidity sensor, is composed of a stainless steel probe and a waterproof probe. It can be buried in the soil and dams for a long time for fixed-point monitoring and online measurement of the moisture content of the surface and deep soil. It can be used in conjunction with a data collector as a tool for fixed-point moisture monitoring or mobile measurement.

[0003] A Chinese patent with publication number CN213933858U discloses a soil moisture sensor, including a moisture sensor body, a fixed block is sleeved on the surface of the moisture sensor body, a power groove is opened on the front and rear sides of the fixed block, the top and bottom of the inner wall of the power groove are fixedly connected to a support plate, both sides of the support plate are fixedly connected to a tension spring, the side of the tension spring away from the support plate is fixedly connected to a sliding plate, the side of the sliding plate away from the support plate is movably connected to a connecting column, the top and bottom of the connecting column are fixedly connected to a clamping mechanism located inside the power groove, the side of the connecting column away from the support plate passes through the fixed block and extends to the outside of the fixed block and is fixedly connected to a rectangular plate.

[0004] When the soil moisture sensor disclosed in the application is used, the rectangular plate needs to be pulled and then rotated and fixed, and then all the rectangular plates need to be unfolded in turn. The rectangular plates need to be pressed underground by digging holes, burying and compacting. The operation process is relatively cumbersome and time-consuming. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a soil moisture sensor.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A soil moisture sensor comprises a substrate, wherein the upper and lower ends of the substrate are respectively provided with a moisture sensor body and a main plug column, the upper part of the moisture sensor body is rotatably matched with a T-shaped screw rod, the lower end of the T-shaped screw rod is provided with a screw rod, the screw rod vertically penetrates the moisture sensor body and the substrate, and the lower part of the screw rod is rotatably matched in the main plug column;

[0008] A plurality of isosceles triangle blocks are slidably matched in the main plug column, and two auxiliary plug columns corresponding to the isosceles triangle blocks are elastically matched. The plurality of isosceles triangle blocks are equidistantly arranged in the vertical direction, and the isosceles triangle blocks are threadedly matched on the peripheral side of the screw rod.

[0009] Optionally, a slide groove is provided in the main plug column, the isosceles triangle block is slidably fitted in the slide groove, the screw penetrates the slide groove in the vertical direction, and a plurality of storage holes are provided in the transverse direction of the main plug column, the storage holes penetrate the slide groove and the main plug column, the diameter of the storage holes is larger than the thickness of the slide groove, and the two auxiliary plug columns corresponding to the isosceles triangle block are elastically fitted in the same storage hole, and the sliding direction of the auxiliary plug columns is limited by the storage holes.

[0010] Optionally, a semicircular groove corresponding to the screw is provided at the lower part of one end of the auxiliary plug-in column, and an inclined groove adapted to the isosceles triangle block is provided at the upper part. The semicircular groove is connected to the inclined groove, and the inclined groove facilitates the auxiliary plug-in column to slide horizontally when the isosceles triangle block moves downward.

[0011] Optionally, a lower cone is provided at the lower end of the main plug column, and a side cone is provided at the end of the auxiliary plug column away from the screw rod. The side cone is located in the receiving hole. The cooperation between the lower cone and the side cone facilitates the insertion of the main plug column and the auxiliary plug column into the soil.

[0012] Optionally, two grooves are provided on the side of the inner wall of the storage hole, the slide groove is located between the two grooves, and a slider is provided on the side of the auxiliary plug-in column that slides in the groove. Two springs are provided in the groove, and the two sliders are located between the two springs. The slider is squeezed by the springs to keep the auxiliary plug-in column stored in the storage hole when it is not squeezed by the isosceles triangle block.

[0013] Optionally, two pressing plates are provided on the sides of the base plate, and a plurality of anti-skid convex grooves are provided on the pressing plates, so that the roughness of the surface of the pressing plates is increased by the anti-skid convex grooves.

[0014] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0015] The T-shaped screw rod is used to conveniently screw the screw, thereby controlling the isosceles triangle block to move downward to squeeze the auxiliary plug post out of the main plug post, and all the auxiliary plug posts are adjusted at the same time, thereby improving the convenience of installing the soil moisture sensor. By first inserting the main plug post into the soil, and then inserting the auxiliary plug post into the soil horizontally, the resistance when the main plug post is pulled out and the firmness of the installation are increased, thereby reducing the need for digging, burying and compacting, and reducing the damage to the soil compactness caused by digging and burying.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] In the figure:

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of a main plug column according to an embodiment of the utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0022] Figure 4 The figure is a schematic diagram of the cross-sectional structure of an auxiliary plug post according to an embodiment of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] Base plate 1, pressing plate 101, anti-slip ridges 102, moisture sensor body 2, main plug column 3, lower cone 301, slide groove 302, storage hole 303, groove 304, T-shaped screw rod 4, screw 401, limit rotating plate 402, auxiliary plug column 5, side cone 501, semicircular groove 502, inclined groove 503, slider 504, spring 6, isosceles triangle block 7.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] The utility model will now be further described in detail with reference to the accompanying drawings.

[0027] See also Figure 1-4 As shown, in this embodiment, a soil moisture sensor is provided, including a substrate 1, wherein a moisture sensor body 2 and a main plug 3 are respectively mounted on the upper and lower ends of the substrate 1, a T-shaped screw rod 4 is rotatably matched with the upper part of the moisture sensor body 2, a screw rod 401 is mounted on the lower end of the T-shaped screw rod 4, the screw rod 401 vertically penetrates the moisture sensor body 2 and the substrate 1, and the lower part of the screw 401 is rotatably matched in the main plug 3;

[0028] The main plug-in column 3 is slidably fitted with multiple isosceles triangle blocks 7 and elastically fitted with two auxiliary plug-in columns 5 corresponding to the isosceles triangle blocks 7. The screw rod 401 is located between the two corresponding auxiliary plug-in columns 5. The multiple isosceles triangle blocks 7 are equidistantly arranged in the vertical direction, and the isosceles triangle blocks 7 are threadedly fitted on the circumferential side of the screw rod 401.

[0029] One aspect of the application of this embodiment is as follows: when in use, the main plug post 3 is first inserted into the soil until the base plate 1 contacts the ground, and then the T-shaped screw rod 4 is twisted with force, and the rotation of the T-shaped screw rod 4 drives the screw rod 401 to rotate, and the rotation of the screw rod 401 drives the isosceles triangle block 7 to slide downward, and the isosceles triangle block 7 slides downward to squeeze the two auxiliary plug posts 5 at the bottom thereof away from each other, so that the auxiliary plug posts 5 slide outward from the main plug posts 3, and the auxiliary plug posts 5 are horizontally inserted into the soil.

[0030] In this embodiment, a slide groove 302 is provided in the main plug column 3, and the isosceles triangle block 7 is slidably fitted in the slide groove 302. The screw 401 vertically penetrates the slide groove 302. The lower end of the screw 401 is equipped with a limit rotating plate 402 that rotatably fits in the main plug column 3. The movable direction of the screw 401 is limited by the limit rotating plate 402. The main plug column 3 is provided with a plurality of storage holes 303 in the transverse direction. The storage holes 303 penetrate the slide groove 302 and the main plug column 3. The diameter of the storage holes 303 is larger than the thickness of the slide groove 302. The two auxiliary plug columns 5 corresponding to the isosceles triangle block 7 are elastically fitted in the same storage hole 303. The sliding direction of the isosceles triangle block 7 is limited by the slide groove 302, so as to reduce the probability of the isosceles triangle block 7 rotating due to the rotation of the screw 401, and the sliding direction of the auxiliary plug column 5 is limited by the storage hole 303.

[0031] The auxiliary plug post 5 of this embodiment is provided with a semicircular groove 502 corresponding to the screw rod 401 at the lower part of one end, and an inclined groove 503 adapted to the isosceles triangle block 7 at the upper part. The semicircular groove 502 is connected with the inclined groove 503. In the storage state, the auxiliary plug post 5 is clamped on the side of the screw rod 401 through the semicircular groove 502, and the lower part of the isosceles triangle block 7 is located in the inclined groove 503. The inclined groove 503 facilitates the auxiliary plug post 5 to slide horizontally when the isosceles triangle block 7 moves downward.

[0032] In this embodiment, a lower cone 301 is provided at the lower end of the main plug column 3, and a side cone 501 is provided at the end of the auxiliary plug column 5 away from the screw rod 401. The side cone 501 is located in the storage hole 303. The cooperation between the lower cone 301 and the side cone 501 facilitates the insertion of the main plug column 3 and the auxiliary plug column 5 into the soil. The auxiliary plug column 5 and the side cone 501 are an integrated structure, which has the same function as the probe in the prior art.

[0033] In this embodiment, two grooves 304 are provided on the inner wall side of the storage hole 303, and the slide groove 302 is located between the two grooves 304. A slider 504 that slides in the groove 304 is provided on the side of the auxiliary plug column 5. Two springs 6 are provided in the groove 304, and the two sliders 504 are located between the two springs 6. The slider 504 is squeezed by the spring 6, so that the auxiliary plug column 5 is kept in the storage hole 303 when it is not squeezed by the isosceles triangle block 7, thereby reducing the probability of the auxiliary plug column 5 being thrown out and hindering the main plug column 3 from being inserted into the soil.

[0034] In this embodiment, two pressing plates 101 are provided on the side of the base plate 1, and a plurality of anti-skid convex grooves 102 are provided on the pressing plates 101. The anti-skid convex grooves 102 increase the roughness of the surface of the pressing plates 101, thereby facilitating the main plug 3 to be inserted into the soil by hand pressure or foot pressure.

[0035] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A soil moisture sensor, characterized in that: include: A base plate (1), wherein the upper and lower ends of the base plate (1) are respectively provided with a moisture sensor body (2) and a main plug post (3); the upper portion of the moisture sensor body (2) is rotatably engaged with a T-shaped screw rod (4); the lower end of the T-shaped screw rod (4) is provided with a screw rod (401); the lower portion of the screw rod (401) is rotatably engaged in the main plug post (3); A plurality of isosceles triangle blocks (7) are slidably fitted inside the main plug column (3), and two auxiliary plug columns (5) corresponding to the isosceles triangle blocks (7) are elastically fitted therein, and the isosceles triangle blocks (7) are threadedly fitted on the circumferential side of the screw rod (401).

2. A soil moisture sensor according to claim 1, characterized in that: A slide groove (302) is provided in the main plug post (3), and the isosceles triangle block (7) is slidably fitted in the slide groove (302). A plurality of receiving holes (303) are provided in the transverse direction of the main plug post (3), and the corresponding two auxiliary plug posts (5) are elastically fitted in the same receiving hole (303).

3. A soil moisture sensor according to claim 2, characterized in that: Two grooves (304) are provided on the inner wall side of the receiving hole (303), a slider (504) slidably fitted in the groove (304) is provided on the side of the auxiliary plug post (5), and two springs (6) are provided in the groove (304).

4. A soil moisture sensor according to claim 1, characterized in that: A semicircular groove (502) corresponding to the screw rod (401) is provided at the lower part of one end of the auxiliary plug post (5), and an inclined groove (503) matching the isosceles triangle block (7) is provided at the upper part.

5. The soil moisture sensor according to claim 1, characterized in that: A lower cone (301) is provided at the lower end of the main plug post (3), and a side cone (501) is provided at one end of the auxiliary plug post (5) away from the screw rod (401).

6. The soil moisture sensor according to claim 1, characterized in that: Two pressing plates (101) are arranged on the side of the base plate (1), and a plurality of anti-slip convex patterns (102) are arranged on the pressing plates (101).

Images