JP3245698U - Alkaline soil moisture content meter - Google Patents

Abstract

An object of the present invention is to provide an alkaline soil moisture content measuring device that can avoid damage to the probe. The measuring device includes a measuring device main body 100, a probe 300, an elastic sleeve 500, and an elastic member 600, the probe and the measuring device main body are connected by a lead wire, and the measuring device main body emits a signal to soil through the probe. . The telescoping sleeve is attached to the probe base 400, the telescoping sleeve is movably fitted to the outside of the probe, the probe is not in contact with the inner wall of the telescoping sleeve, and the probe extends or retracts from the end of the telescoping sleeve. Can be returned to the sleeve. The elastic member is installed within the telescoping sleeve, the lower end is connected to the bottom of the telescoping sleeve, the upper end is connected to the probe base, and has an elastic force that causes the telescoping sleeve to stretch back in the axial direction and allow the probe to enter the telescoping sleeve. . The probe extends from the end of the telescoping sleeve during operation and returns within the telescoping sleeve during non-operation. [Selection diagram] Figure 1

Description

The present invention relates to the technical field of soil measurement, and specifically relates to an alkaline soil moisture content meter.

Alkaline cultivated land has high salt content, high pH value, solidified soil, poor aeration, low fertility, and poor water and fertilizer retention capacity, resulting in low germination rate and low yield of economic crops on cultivated land. economic returns are low, and there is an urgent need for improvement. Therefore, in recent years, research tests on alkaline soil improvement technology and soil improvement activities have been constantly conducted. , plays a very important role in water-saving irrigation, etc.

Soil moisture measuring instruments in the prior art mainly emit electromagnetic waves with a certain frequency, the emitted electromagnetic waves are transmitted along the probe, the probe is placed in the soil to be measured, and the electromagnetic waves return after reaching the soil bottom, and then , to obtain the soil moisture content measured by the output voltage of the probe. Since the soil dielectric constant depends on the moisture content of the soil to be measured, the moisture content of the soil can be calculated from the output voltage of the probe. Conventional soil moisture measuring instruments have the drawback that the probe is easily broken during transportation due to its elongated probe shape.

An object of the present invention is to provide an alkaline soil moisture content measuring instrument that solves the problem of the prior art soil moisture measuring instrument, in which the probe is easily broken when being moved.

In order to solve the above problems, the present invention relates to an alkaline soil moisture content measuring device, which includes the following:
The probe is connected to the measuring instrument body with lead wires,
A telescoping sleeve, attached to the probe base and movably fitted to the outside of the probe, such that the probe is not in contact with the inner wall of the telescoping sleeve, and the probe extends out of the end of the telescoping sleeve or within the telescoping sleeve. can return to
an elastic member disposed within the telescoping sleeve, its lower end connected to the bottom of the telescoping sleeve and its upper end connected to the probe base, providing an elastic force for axially stretching the telescoping sleeve back and advancing the probe into the telescoping sleeve; has.

In some specific embodiments, the elastic sleeve includes a first sleeve, a second sleeve, and a third sleeve.
including a sleeve;
The radius of the first sleeve<the radius of the second sleeve<the radius of the third sleeve,
A sliding fit is provided between the first sleeve and the second sleeve, and between the second sleeve and the third sleeve, respectively;
the second sleeve is axially slidable along the outer wall of the first sleeve;
The third sleeve is axially slidable along the outer wall of the second sleeve.

In some specific embodiments, the lower ends of the first sleeve and the second sleeve are each provided with an outer protrusion extending outward along the radial direction,
An inner protrusion extending inward along the radial direction is provided at the upper end of the second sleeve and the third sleeve, respectively;
The inner protrusion can abut the outer protrusion.

In some specific embodiments, the probe base is provided with a first stop portion;
A second stopper portion is correspondingly provided on the third sleeve;
The third sleeve is connected to the probe base via the first stopper part and the second stopper part,
Thereby, the first sleeve, second sleeve, and third sleeve can be stacked on top of each other.

In some specific embodiments, the first stopper portion is an external thread provided on the outer wall of the probe base;
The second stopper part is a female thread provided on the inner wall of the third sleeve,
The telescopic sleeve can be shortened or extended by connecting or separating the male and female threads.

In some specific embodiments, the resilient member is a spring along the inner wall of the first sleeve;
The probe is not in contact with the spring,
The upper end of the spring abuts the probe base, and the lower end abuts the inner wall of the third sleeve.

In some specific embodiments, the third sleeve further includes:
a retaining ring, provided along the radial direction on the inner wall of the third sleeve;
The lower end of the elastic member is brought into contact with the retaining ring, the upper end of the elastic member is brought into contact with the probe base,
The end seal part is provided on the inner wall of the retaining ring, and the probe can extend from the central position of the end seal part or return into the third sleeve.

In some specific embodiments, the end seal is a rubber pad;
A cross-shaped opening is provided in the center of the rubber pad,
The probe can extend out of the cruciform opening or back into the third sleeve.

In some specific embodiments, the end seal portion is a soft brush;
The probe can extend out of the soft brush or back into the third sleeve.

The alkaline soil moisture content meter of the present invention installs a telescopic sleeve, attaches the telescopic sleeve to the probe base, and prevents the probe from touching the inner wall of the telescopic sleeve, so that the probe extends from the end of the telescopic sleeve. Or you can go back to the elastic sleeve.
The probe extends from the end of the telescoping sleeve when in operation, and returns to the telescoping sleeve when not in operation, thereby protecting the probe and avoiding damage to the probe.

An end seal is provided at the lower end of the telescopic sleeve, and the probe can extend from the center of the end seal or enter the telescopic sleeve, and the probe can enter the telescopic sleeve from the center of the end seal. When doing so, the end seal wipes off any mud that adheres to the probe, keeping the probe clean and ready for next use.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly explain the technical solutions in the embodiments of the present invention or the prior art, the drawings necessary in the description of the embodiments or the prior art will be briefly described below. Of course, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.
FIG. 2 is a schematic diagram of the structure of the present invention in use; FIG. 2 is a structural schematic diagram of the telescopic sleeve of the present invention in an extended state; FIG. 1 is a schematic structural diagram of an end seal portion. FIG. 2 is a schematic diagram 2 of the structure of the end seal portion.

Hereinafter, together with the drawings of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely explained. Of course, the embodiments described herein are only some embodiments of the present invention, not all embodiments.

Examples of this embodiment are shown in the drawings, in which identical or similar symbols represent identical or similar parts or parts having the same or similar functions. The embodiments described below with reference to the drawings are merely examples for explaining the present invention, and should not be understood as limiting the present invention.

In the description of this invention, "top", "bottom", "inside", "outside", "axis", "circumferential direction" are used.
The orientation or positional relationship indicated by the term is based on the orientation or positional relationship shown in the drawings, and is intended to facilitate explanation of the present invention. It is not intended to imply that the invention must be constructed and operated in any particular direction, and should not be construed as a limitation on the present invention.

It is also understood that the terms "first" and "second" are used for descriptive purposes and indicate or imply relative importance or number of technical features indicated. Can not. Accordingly, the features defined as "first" and "second" may include one or more features explicitly or implicitly. In the description of this invention, "plurality" refers to two or more unless there is a specific provision.
means more than one.

In the present invention, terms such as "mounting,""communication," and "coupling" shall be understood in a broad sense, such as fixedly connected, removably connected, or integral mechanical connection, electrical connection, direct connection, indirect connection through an intermediate medium, 2
It may be an internal communication between two parts or an interaction between two parts. Those skilled in the art can understand the specific meanings of the above terms in the present invention depending on the situation.

As described in the background technology, conventional soil moisture measuring instruments have elongated probes, so
The drawback is that the probe is easily broken during transportation.

In order to solve the above problems, the present invention provides an alkaline soil moisture content measuring instrument as shown in FIG.
00, of which a probe 300 and a measuring device main body 100 are connected by a lead wire 200, and the measuring device main body 100 emits a signal to the soil through the probe. Telescopic sleeve 500
is attached to the probe base 400, the telescopic sleeve 500 is movably fitted on the outside of the probe 300, the probe 300 is not in contact with the inner wall of the telescopic sleeve 500, and the probe 300 is attached to the end of the telescopic sleeve 500. It can either extend out of the bag or back into the elastic sleeve. The elastic member 600 is installed within the elastic sleeve 500, the lower end of the elastic member 600 is connected to the bottom of the elastic sleeve 500, and the upper end of the elastic member 600 is connected to the probe base 40.
0, and the elastic member 600 has an elastic force that causes the telescopic sleeve 500 to return to its axial extension and allow the probe 300 to enter the telescopic sleeve.

Specifically, in the exemplary embodiment, the elastic sleeve 500 has a first sleeve 510 and a second sleeve 510.
It includes a sleeve 520 and a third sleeve 530, of which the radius of the first sleeve 510<
The radius of the second sleeve 520<the radius of the third sleeve 530, and the first sleeve 510 and the second sleeve 520 and the second sleeve 520 and the third sleeve 530 are slidably fitted, respectively, The second sleeve 520 is axially slidable along the outer wall of the first sleeve 510, and the third sleeve 530 is axially slidable along the outer wall of the second sleeve 520.

Specifically, in the exemplary embodiment, the lower ends of the first sleeve 510 and the second sleeve 520 are each provided with an outer protrusion 700 that extends outward along the radial direction, and the second sleeve 520 and the third sleeve 530 An inner protrusion 800 extending inwardly along the radial direction is provided at the upper end of each of the inner protrusions 800 , and the inner protrusion 800 can come into contact with the outer protrusion 700 . The inner protrusion 800 of the second sleeve 520 abuts the outer protrusion 700 of the first sleeve 510, and the inner protrusion 800 of the third sleeve 530 also contacts the outer protrusion 700 of the second sleeve 520.
0, the length of the telescopic sleeve in the axial direction is the longest, and the probe 300 returns into the telescopic sleeve.

Specifically, in the exemplary embodiment, the probe base 400 is provided with a first stopper part 410, the third sleeve 530 is correspondingly provided with a second stopper part 531, and the first stopper part 410 is provided with a second stopper part 531. When connected to the second stopper part 531, the third sleeve 530 is connected to the probe base 400, and at this time, the first sleeve 510, the second sleeve 520, and the third sleeve 530 are overlapped with each other, and the probe 300 is connected to the telescopic sleeve. It starts to grow from 500. When the first stopper part 410 is separated from the second stopper part 531, the third sleeve 530 is separated from the probe base 400, and at this time, the inner protrusion 800 of the second sleeve 520 is separated from the outer protrusion 700 of the first sleeve 510. When the inner protrusion 800 of the third sleeve 530 also abuts the outer protrusion 700 of the second sleeve 520, the axial length of the telescopic sleeve 500 is the longest, and the probe 300 is in contact with the telescopic sleeve. return.

Specifically, in the exemplary embodiment, the first stopper part 410 is a male thread provided on the outer wall of the probe base, and the second stopper part 531 is a female thread provided on the inner wall of the third sleeve. By turning the third sleeve 530, the male thread and the female thread can be connected or separated, and the telescopic sleeve 500 can be further shortened or expanded.

Specifically, in the exemplary embodiment, the elastic member 600 is a spring provided along the inner wall of the first sleeve, the probe 300 is not in contact with the spring, and the upper end of the spring is in contact with the probe base 400. The lower end of the third sleeve 530 contacts the inner wall of the third sleeve 530 .

Specifically, in the exemplary embodiment, the third sleeve 530 is further provided with a retaining ring 532 and an end seal part 533, of which the retaining ring 532 is provided along the inner wall of the third sleeve in the radial direction. , the retaining ring 532 is integrally connected to the third sleeve, and the elastic member 60
0 is in contact with the retaining ring 532 , the upper end of the elastic member is in contact with the probe base 400 , the end seal part 533 is provided on the inner wall of the retaining ring 532 , and the probe 300 is in the center position of the end seal part 533 . or can extend back into the third sleeve 530. Once the probe 300 is returned within the telescoping sleeve, the end seal portion 533 may serve to protect the probe.

Specifically, in the exemplary embodiment, the end seal portion 533 is a rubber pad, the rubber pad is adhered to or locked to the inner wall of the retaining ring, and the rubber pad has a cross-shaped opening in the center. is provided, and as shown in FIG. The rubber pad automatically returns to protect the probe. Also, when the probe 300 returns from the cross-shaped opening to the telescopic sleeve 500, the dirt adhering to the probe 300 is wiped away by the rubber pad, keeping the surface of the probe clean and ready for next use.

In other embodiments, as shown in FIG.
30 and when the probe is returned into the telescopic sleeve, the soft brush automatically returns to serve to protect the probe. Furthermore, when the probe 300 returns from the soft brush to the telescopic sleeve 500, mud adhering to the probe 300 is wiped off by the soft brush.
Keep the surface of the probe clean and ready for next use.

The usage procedure is as follows.
The third sleeve 530 is pressed along the axial direction, and the elastic member 600 is simultaneously pressed, so that the third sleeve 530, the second sleeve 520, and the first sleeve 510 overlap each other, and at this time, the probe 300 extends from the telescopic sleeve 500, the third sleeve 530 is turned to screw the third sleeve 530 onto the probe base 400, and the probe 300
is held in a state extending from the telescopic sleeve 500, the measuring instrument main body 100 is operated, and a signal is emitted to the soil sample through the lead wire 200 and the probe 300. The measuring instrument main body 100 receives the signal and processes it as data. The signal is transmitted to a display device for signal processing, and the moisture content of the soil to be measured is obtained. After the measurement, the third sleeve 530 is rotated in the opposite direction to separate the third sleeve 530 from the probe base 400, and due to the compressive elastic force of the elastic member 600, the third sleeve 530 and the second
The sleeve 520 is pushed out in sequence, and the probe 300 enters the telescopic sleeve 500 again to prevent breakage. Furthermore, when the probe 300 passes through the end seal section 533, the end seal section 533 removes soil adhering to the probe 300.

In the description of this specification, the reference terms "one example,""someexamples,""exemplary,""specificexample,""one specific example," or "some examples" are used. ” means that the specific characteristic, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In the present specification, the schematic representations of the above terms are not necessarily referring to the same embodiment or illustration. Additionally, the specific features, structures, materials, or features described may be combined in any suitable manner in any one or more embodiments or illustrations.

The above is only a preferred specific embodiment of the present invention, and does not limit the protection scope of the present invention. Equivalent substitutions or changes made based on the concept shall fall within the protection scope of the present invention.

100-Measuring instrument body, 200-Lead wire, 300-Probe, 400-Probe base, 41
0-first stopper part, 500-telescopic sleeve, 510-first sleeve, 520-second sleeve,
530-Third sleeve, 531-Second stopper part, 532-Retaining ring, 533-End seal part, 600-Elastic member, 700-Outer protrusion part, 800-Inner protrusion part

Claims (9)

An alkaline soil moisture content meter, comprising:
Measuring instrument body,
A probe is connected to the measuring instrument body with a lead wire,
a telescoping sleeve attached to the probe base and movably fitted to the outside of the probe, the probe not in contact with an inner wall of the telescoping sleeve, and the probe extending from an end of the telescoping sleeve; can be returned within the elastic sleeve;
an elastic member disposed within the telescoping sleeve, with its lower end connected to the bottom of the telescoping sleeve and its upper end connected to the probe base to allow the telescoping sleeve to axially stretch back and move the probe into the telescoping sleeve; The alkaline soil moisture content measuring device has an elastic force that allows the water content to enter the alkaline soil. The elastic sleeve includes a first sleeve, a second sleeve, and a third sleeve,
The radius of the first sleeve<the radius of the second sleeve<the radius of the third sleeve,
The first sleeve and the second sleeve are slidably fitted, and the second sleeve and the third sleeve are respectively slidably fitted;
the second sleeve is axially slidable along an outer wall of the first sleeve;
The alkaline soil moisture content meter according to claim 1, wherein the third sleeve is slidable in the axial direction along an outer wall of the second sleeve. The lower ends of the first sleeve and the second sleeve are each provided with an outer protrusion extending outward along the radial direction,
An inner protrusion extending inward along the radial direction is provided at the upper end of the second sleeve and the third sleeve, respectively;
The alkaline soil moisture content meter according to claim 2, wherein the inner protrusion can come into contact with the outer protrusion. The probe base is provided with a first stopper portion,
A second stopper portion is correspondingly provided on the third sleeve,
The third sleeve is connected to the probe base via the first stopper part and the second stopper part,
The alkaline soil moisture content meter according to claim 3, wherein the first sleeve, the second sleeve, and the third sleeve can be stacked on top of each other. The first stopper part is a male thread provided on the outer wall of the probe base,
The second stopper portion is an internal thread provided on the inner wall of the third sleeve,
5. The alkaline soil moisture content meter according to claim 4, wherein the telescopic sleeve is shortened or expanded by connecting or separating the male thread and the female thread. The elastic member is a spring provided along the inner wall of the first sleeve,
the probe is not in contact with the spring;
The alkaline soil moisture content meter according to claim 2, wherein an upper end of the spring contacts the probe base, and a lower end contacts the inner wall of the third sleeve. The third sleeve further includes the following:
a retaining ring, provided along the radial direction on the inner wall of the third sleeve;
A lower end of the elastic member is in contact with the retaining ring, an upper end of the elastic member is in contact with the probe base,
The alkaline soil moisture content according to claim 2, wherein an end seal part is provided on the inner wall of the retaining ring, and the probe can extend from a central position of the end seal part or return into the third sleeve. Measuring instrument. The end seal part is a rubber pad,
A cross-shaped opening is provided in the center of the rubber pad;
8. The alkaline soil moisture content meter of claim 7, wherein the probe can extend out of the cruciform opening or return into the third sleeve. The end seal part is a soft brush,
the probe can extend from the soft brush or return to the third sleeve;
The alkaline soil moisture content meter according to claim 7.