A portable soil moisture content measuring device

By separating the weighing and drying processes in a portable soil moisture content measuring device and using a heat-insulating drying device to isolate moisture evaporation, the problem of large errors in existing technologies is solved, improving the accuracy of the measurement results and the ease of operation.

CN224303495UActive Publication Date: 2026-05-29HEILONGJIANG JINLI ENG TESTING CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG JINLI ENG TESTING CO LTD
Filing Date
2025-06-17
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing portable soil moisture content analyzers have large errors during soil sample weighing and drying. Furthermore, the fact that the drying equipment and weighing equipment are housed in the same chamber leads to moisture evaporation, affecting the accuracy of the test results.

Method used

A portable soil sample moisture content measuring device was designed. By separating the storage box from the support, the weighing and drying operations can be carried out independently. The drying device with heat insulation material is used to isolate moisture evaporation and improve the measurement accuracy.

Benefits of technology

It reduces errors during weighing and drying, improves the accuracy of test results, and is easy to operate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224303495U_ABST
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Abstract

A portable soil sample moisture content measuring device belongs to the technical field of soil moisture detection, characterized in that: it comprises a fixed base and a control screen connected at the middle of the front surface of the fixed base, an oven drying device is connected at the middle of the upper surface of the fixed base, a supporting device is connected at the middle of the left and right surfaces of the fixed base, lifting cylinders are symmetrically connected at the middle of the left and right edges of the upper surface of the fixed base, a load-bearing platform is connected at the center of the upper surface of the telescopic end of each lifting cylinder, and a loading device is slidingly inserted into the middle of the upper surface of the supporting device, so that the object box can be lifted and separated from the support when the soil sample is weighted, the weighing result is more accurate, and the soil sample to be dried can be isolated from the soil sample to be dried during drying to prevent water evaporation of the soil sample to be dried, so that the detection result is more accurate.
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Description

Technical Field

[0001] This utility model belongs to the technical field of soil moisture testing instruments, specifically relating to a portable soil sample moisture content measuring device. Background Technology

[0002] Existing patent: Patent number CN205538541U, titled "A Portable Soil Sample Moisture Content Meter". This patent has a large error when weighing because the rotating rod is connected to the storage box. In addition, both the drying device and the weighing device are set inside the box, causing the moisture in the soil sample to evaporate, which makes the detection structure have a large error. Utility Model Content

[0003] The purpose of this invention is to: lift and separate the storage box from the support when weighing soil samples, making the weighing results more accurate; and to isolate the storage box from the soil sample during drying to prevent moisture evaporation, thus improving the accuracy of the test results and facilitating operation by staff. The technical solution is as follows:

[0004] A portable soil moisture content measuring device, characterized in that: it includes a fixed base 1 and a control screen 2 connected to the middle of the front surface of the fixed base 1; a drying device 3 is connected to the middle of the upper surface of the fixed base 1; support devices 4 are connected to the middle of the left and right sides of the upper surface of the fixed base 1; lifting cylinders 5 are symmetrically connected to the middle of the left and right edges of the upper surface of the fixed base 1; a load-bearing platform 6 is connected to the center of the upper surface of the telescopic end of each lifting cylinder 5; and a sliding insert is mounted on the middle of the upper surface of the support device 4. The drying device 3 includes a mounting device 7, a base 3-1, a heating wire 3-2, an outer cylinder 3-3, and a notch 3-4. The heating wire 3-2 is inserted into the center of the upper surface of the base 3-1. The outer cylinder 3-3 is connected to the perimeter of the upper surface of the base 3-1. The notch 3-4 is located at the upper edge of the side surface of the outer cylinder 3-3. The base 3-1 and the fixed base 1 are connected by bearings. The outer cylinder 3-3 and the base 3-1 are made of heat-insulating material. The supporting device 4 includes an upper frame 4-1. The upper frame 4-1 has symmetrically arranged grooves 4-2 at the middle of the front and rear edges of its upper surface. Each groove 4-2 has symmetrically connected adhesive columns 4-3 at the middle of its front and rear surfaces. The lower surface of the upper frame 4-1 has symmetrically connected support plates 4-4 at the middle of its front and rear surfaces. The support plates 4-4 are Y-shaped, with two support plates 4-4 positioned on the left and right sides of the outer cylinder 3-3. The support plates 4-4 are connected to the upper surface of the fixed base 1. The mounting device 7 includes a housing 7-1. The box body 7-1 is symmetrically connected to the middle of the front and rear surfaces of the box body 7-1. Several rollers 7-3 are evenly distributed and inserted horizontally on the lower surface of each of the card plates 7-2. The box body 7-1 is inserted into the middle of the upper surface of the upper frame 4-1. The rollers 7-3 are inserted into the sliding groove 4-2. The size of the notch 3-4 is matched with the size of the box body 7-1.

[0005] The beneficial effects of this utility model are as follows: when weighing soil samples, the storage box can be lifted and separated from the support, making the weighing results more accurate. Furthermore, during drying, it can be isolated from the soil sample to be dried to prevent moisture evaporation, making the test results more accurate and convenient for staff to operate and use. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0007] Figure 2 This is a schematic diagram of the drying device 3 of this utility model;

[0008] Figure 3 This is a schematic diagram of the support device 4 of this utility model;

[0009] Figure 4 This is a schematic diagram of the structure of the mounting device 7 of this utility model;

[0010] In the diagram: 1. Fixed base; 2. Control screen; 3. Drying device; 4. Support device; 5. Lifting cylinder; 6. Loading platform; 7. Loading device; 8. Base; 9. Heating wire; 10. Outer cylinder; 11. Notch; 12. Upper frame; 13. Slide groove; 14. Glue column; 15. Support plate; 16. Box body; 17. Clamping plate; 18. Roller; 19. Pad plate; 10. Pad plate. Detailed Implementation

[0011] Reference Figures 1-4 The portable soil moisture content measuring device is characterized by comprising a fixed base 1 and a control screen 2 connected to the middle of the front surface of the fixed base 1, a drying device 3 connected to the middle of the upper surface of the fixed base 1, a support device 4 connected to the middle of the left and right sides of the upper surface of the fixed base 1, lifting cylinders 5 symmetrically connected to the middle of the left and right edges of the upper surface of the fixed base 1, a load-bearing platform 6 connected to the center of the upper surface of the telescopic end of each lifting cylinder 5, and a mounting device 7 slidably inserted into the middle of the upper surface of the support device 4.

[0012] In use, first place and fix the fixed base 1 in the appropriate position, then place the soil sample into the receiving device 7 and insert it into the support device 4. Then, the operator operates the control screen 2 to extend the telescopic end of the lifting cylinder 5, which simultaneously lifts the load-bearing platform 6 and separates the receiving device 7 from the support device 4. The operator then watches the control screen 2 to record the weight. Then, the operator operates the control screen 2 again to retract the telescopic end of the lifting cylinder 5 and insert the receiving device 7 into the support device 4. Then, push the receiving device 7 to slide it on the support device 4, and simultaneously push the receiving device 7 into the drying device 3. Then, rotate the drying device to the left. The drying device is rotated 390°, and then the control screen 2 is operated again to start the drying device 3 to dry the soil in the container 7. During the drying process, the staff put other soil samples into another container 7 and weighed them according to the above method. After drying, the staff rotates the drying device 390° to the left again and pushes the container 7 in the drying device 3 to the left side. Then, the control screen 2 is operated again to extend the telescopic end on the left lifting cylinder 5 so that the load-bearing platform 6 can lift the container 7 and weigh the dried soil. Finally, the staff can calculate the soil moisture content.

[0013] Furthermore, the drying device 3 includes a base 3-1, a heating wire 3-2, an outer cylinder 3-3, and a notch 3-4. The heating wire 3-2 is inserted into the middle of the upper surface of the base 3-1. The outer cylinder 3-3 is connected to the four edges of the upper surface of the base 3-1. The notch 3-4 is provided at the upper edge of the side surface of the outer cylinder 3-3. The base 3-1 and the fixed base 1 are connected to each other by bearings. The outer cylinder 3-3 and the base 3-1 are made of heat-insulating material.

[0014] During use, the mounting device 7 is pushed into the outer cylinder 3-3 through the notch 3-4. Then, the operator holds the base 3-1 and rotates it 90° to the left to turn the notch 3-4 forward, preventing heat from being transferred to the mounting devices 7 on the left and right sides. The operator then operates the control screen 2 to energize the heating wire 3-2 and generate heat. Since the outer cylinder 3-3 and the base 3-1 are made of heat-insulating material, they can effectively block heat from being transferred to the left and right sides. After drying, the outer cylinder 3-3 is rotated to the left again to turn the notch 3-4 to the left side. Finally, the mounting device 7 is pushed out of the outer cylinder 3-3.

[0015] Furthermore, the support device 4 includes an upper frame 4-1, a sliding groove 4-2, a glue column 4-3, and a support plate 4-4. The upper frame 4-1 has symmetrically arranged sliding grooves 4-2 at the middle of the front and rear edges of the upper surface. Each sliding groove 4-2 has a glue column 4-3 symmetrically connected at the middle of the front and rear surfaces inside. The upper frame 4-1 has a support plate 4-4 symmetrically connected at the middle of the front and rear surfaces of the lower surface. The support plate 4-4 is Y-shaped. Two support plates 4-4 are arranged on the left and right sides of the outer cylinder 3-3. The support plate 4-4 is connected to the upper surface of the fixed base 1.

[0016] When in use, the mounting device 7 slides inside the upper frame 4-1 and simultaneously slides through the support plate 4-4 into the outer cylinder 3-3. When the mounting device 7 slides, the rubber column 4-3 buffers the force of the mounting device 7 hitting the upper frame 4-1. Since the support plate 4-4 is Y-shaped, the mounting device 7 can penetrate above the support plate 4-4 when it is pushed.

[0017] Furthermore, the mounting device 7 includes a box body 7-1, a clamping plate 7-2, rollers 7-3, and a pad 7-4. The clamping plate 7-2 is symmetrically connected to the middle of the front and rear surfaces of the box body 7-1. Several rollers 7-3 are evenly distributed and rotatably inserted on the lower surface of each clamping plate 7-2. The pad 7-4 is symmetrically connected to the middle of the front and rear surfaces of the box body 7-1. The box body 7-1 is inserted into the middle of the upper surface of the upper frame 4-1. The rollers 7-3 are inserted into the sliding groove 4-2. The size of the notch 3-4 matches the size of the box body 7-1.

[0018] In use, the operator inserts the box 7-1 into the upper surface of the upper frame 4-1, and inserts the roller 7-3 into the slide 4-2 and makes contact with the lower surface of the slide 4-2. At the same time, the clamping plate 7-2 connects the roller 7-3 and the box 7-1. Finally, the operator presses the pad 7-4 with their finger to push the box 7-1, while the roller 7-3 rolls in the slide 4-2 to reduce friction.

[0019] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A portable soil sample moisture content measuring device, characterized in that: It includes a fixed base (1) and a control screen (2) connected to the middle of the front surface of the fixed base (1). A drying device (3) is connected to the middle of the upper surface of the fixed base (1). A support device (4) is connected to the middle of the left and right sides of the upper surface of the fixed base (1). Lifting cylinders (5) are symmetrically connected to the middle of the left and right edges of the upper surface of the fixed base (1). A load-bearing platform (6) is connected to the center of the upper surface of the telescopic end of each lifting cylinder (5). A mounting device (7) is slidably inserted into the middle of the upper surface of the support device (4).

2. The portable soil sample moisture content measuring device according to claim 1, characterized in that: The drying device (3) includes a base (3-1), a heating wire (3-2), an outer cylinder (3-3), and a notch (3-4). The heating wire (3-2) is inserted into the middle of the upper surface of the base (3-1). The outer cylinder (3-3) is connected to the four edges of the upper surface of the base (3-1). The notch (3-4) is provided at the upper edge of the side surface of the outer cylinder (3-3). The base (3-1) and the fixed base (1) are connected to each other by bearings. The outer cylinder (3-3) and the base (3-1) are made of heat-insulating material.

3. The portable soil sample moisture content measuring device according to claim 2, characterized in that: The support device (4) includes an upper frame (4-1), a sliding groove (4-2), a rubber column (4-3), and a support plate (4-4). The upper frame (4-1) has symmetrical sliding grooves (4-2) at the middle of the front and rear edges of the upper surface. Each sliding groove (4-2) has a rubber column (4-3) symmetrically connected at the middle of the front and rear surfaces inside the front and rear surfaces. The upper frame (4-1) has a support plate (4-4) symmetrically connected at the middle of the front and rear surfaces of the lower surface. The support plate (4-4) is Y-shaped. Two support plates (4-4) are arranged on the left and right sides of the outer cylinder (3-3). The support plate (4-4) is connected to the upper surface of the fixed base (1).

4. The portable soil sample moisture content measuring device according to claim 3, characterized in that: The mounting device (7) includes a box (7-1), a clamping plate (7-2), rollers (7-3), and a pad (7-4). The clamping plate (7-2) is symmetrically connected to the middle of the front and rear surfaces of the box (7-1). Several rollers (7-3) are evenly distributed and rotatably inserted on the lower surface of each clamping plate (7-2). The pad (7-4) is symmetrically connected to the middle of the front and rear surfaces of the box (7-1). The box (7-1) is inserted into the middle of the upper surface of the upper frame (4-1). The rollers (7-3) are inserted into the groove (4-2). The size of the notch (3-4) matches the size of the box (7-1).