Device for testing natural water content of rock soil in field

Abstract

The utility model relates to a device for testing the natural water content of rock soil in the field, which belongs to the technical field of water content testing and comprises an inserting cylinder component, the inserting cylinder component comprises an inserting cylinder, an inner cylinder is inserted on the inserting cylinder, two handles are fixedly connected to the side wall of the inserting cylinder, two side holes are formed in the side wall of the inserting cylinder, and a telescopic component is fixedly connected to the upper end of the inner cylinder; the telescopic assembly comprises a fixed pipe fixedly connected to the inner cylinder, a square rod is inserted into the fixed pipe, a threaded cylinder is in threaded connection to the fixed pipe, the threaded cylinder is rotationally connected with the square rod, an air cylinder is fixedly connected to the interior of the inner cylinder, and a piston is slidably connected to the interior of the air cylinder. The soil humidity sensor does not contact with soil at other depths when being inserted into the soil, so that the detection accuracy is improved, meanwhile, soil particles on the probe are removed through the cleaning and scraping assembly, the error of next detection is reduced, and the detection accuracy is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water content testing, in particular to a device for testing the natural water content of rock and soil in the field. Background Art

[0002] The natural water content of rock and soil refers to the percentage of water contained in the soil or rock in its natural state. It is an important physical property of soil or rock and is usually expressed by the mass-water ratio (i.e. the ratio of the mass of water to the mass of dry soil). The water content directly affects the mechanical properties, permeability, compressibility, etc. of the soil, and thus affects the stability and safety of the project. In civil engineering and geological engineering, understanding and measuring the natural water content is of great significance for construction design, soil status assessment, and project quality control.

[0003] The specification of Chinese utility model patent 201920368941.9 discloses a device for testing the natural water content of rock and soil in the field, including a base, a detection device and a cleaning device, wherein the detection device is installed inside the base, and the cleaning device is installed at one end of the detection device. The detection device includes a sleeve, a crank is fixedly installed on the upper end of the sleeve, an external thread is provided on the outer surface of the sleeve, a measuring ruler is fixedly installed on the inner part of the sleeve, a humidity sensor is fixedly installed on the lower end of the measuring ruler, a cone head is sleeved on the lower end of the measuring ruler, a blade is fixedly installed on the outer surface of the cone head, and a humidity digital display meter is fixedly installed on the upper end of the base. The utility model facilitates the detection of the water content of rock and soil at different depths by setting a detection device, making the operation more convenient, and facilitates the cleaning of the soil block inside the cone head by setting a cleaning device, so as to avoid affecting the detection result in the next detection.

[0004] In the above patent, during the drilling process, the surface soil will first contact the drill bit. When the drill bit reaches the specified depth, the soil around the sensor at the drill bit may still be mixed with the upper layer or even the surface soil. Therefore, the data obtained by detection may not be the true data of the soil at that depth. In order to improve the accuracy of soil moisture detection at different depths, a device for field testing of natural moisture content of rock and soil is proposed. Utility Model Content

[0005] The utility model aims to provide a device for testing the natural water content of rock and soil in the field, so as to solve the problem of poor accuracy of soil water content detection proposed in the above background technology.

[0006] The technical solution of the utility model is:

[0007] The inserting tube assembly includes an inserting tube, an inner tube is inserted on the inserting tube, two handles are fixedly connected to the side wall of the inserting tube, two side holes are drilled on the side wall of the inserting tube, and a telescopic assembly is fixedly connected to the upper end of the inner tube;

[0008] The telescopic assembly includes a fixed tube fixedly connected to the inner tube, a square rod is inserted on the fixed tube, a threaded tube is threadedly connected to the fixed tube, and the threaded tube is rotatably connected to the square rod, an air cylinder is fixedly connected to the inner tube, a piston is slidably connected to the inner tube, a return spring is fixedly connected between the piston and the inner wall of the inner tube, an air pipe is connected to the lower wall of the return spring, a detection assembly is fixedly connected to the lower end of the air pipe, a scraping assembly is fixedly connected to the detection assembly, a height fixing assembly is fixedly connected between the inner tube and the inserted tube, and a soil drilling assembly is fixedly connected to the lower end of the inserted tube.

[0009] Furthermore, the detection component includes a detection cylinder connected to the air pipe, a movable plug is slidably connected inside the detection cylinder, two limit ring plates are fixedly connected inside the detection cylinder, a soil moisture sensor is fixedly connected to the side wall of the movable plug, a probe is fixedly connected to the soil moisture sensor, and the scraping component includes a scraping sleeve slidably connected to the probe, a magnetic plate is fixedly connected to the scraping sleeve, long magnetic blocks that are magnetically attracted to the magnetic plate are fixedly connected to the inner walls of the front and rear sides of the insertion cylinder, and a tension spring is fixedly connected between the magnetic plate and the movable plug.

[0010] By setting up the detection component, the soil moisture sensor can be driven to extend and retract through the telescopic component, so that after the insertion tube is inserted into the soil, the probe can be inserted into the soil laterally to detect soil at different depths. Before the detection, the probe will not contact the soil at other depths to avoid inaccurate detection. After the detection, the magnetic plate moves under the action of the magnetic force of the long magnetic block through the rotation of the inner tube, thereby driving the scraper sleeve to wipe the probe, thereby improving the accuracy of probe detection.

[0011] Furthermore, the height fixing component includes a rotating tube connected to the lower end of the inner tube, a movable circular plate is slidably connected to the inside of the inserted tube, an outer tube is inserted on the movable circular plate, and the outer tube is rotatably connected to the rotating tube, and corresponding through holes are drilled on the rotating tube and the outer tube, a support plate is fixedly connected to the inside of the inserted tube, a telescopic air bag is fixedly connected between the support plate and the movable circular plate, and the soil drilling component includes a drill bit rotatably connected to the lower end of the inserted tube, a motor is fixedly connected to the inside of the inserted tube, and the output end of the motor is fixedly connected to the drill bit.

[0012] By setting up a height fixing component and a soil drilling component, when the inner cylinder is moved by the height fixing component, once the detection depth is determined, the air pressure is used to fix the height of the inner cylinder when the inner cylinder is rotated to avoid position deviation during the detection process. The soil drilling component can help the insert cylinder drill into the soil more efficiently.

[0013] The utility model provides a device for testing the natural water content of rock and soil in the field through improvement. Compared with the prior art, it has the following improvements and advantages:

[0014] Firstly, the utility model adopts the design that the detection component is rotated and inserted into the soil laterally, so that the soil moisture sensor can be inserted into the soil without contacting the soil at other depths, thereby improving the detection accuracy. At the same time, the soil particles on the probe are removed by the scraping component to reduce the error.

[0015] Second, the utility model can use air pressure to fix the height of the inner cylinder, thereby avoiding position deviation during the detection process and affecting the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a three-dimensional stereogram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the telescopic component in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the detection component in the utility model;

[0020] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0021] Figure 5 It is a structural schematic diagram of the height fixing component and the soil drilling component in the utility model.

[0022] Description of reference numerals:

[0023] 1. Insertion tube assembly; 101. Insertion tube; 102. Inner tube; 103. Handle; 104. Side hole;

[0024] 2. Telescopic assembly; 201. Fixed tube; 202. Square rod; 203. Threaded tube; 204. Air cylinder; 205. Piston; 206. Return spring; 207. Air tube;

[0025] 3. Detection assembly; 301. Detection tube; 302. Moving plug; 303. Limiting ring plate; 304. Soil moisture sensor; 305. Probe;

[0026] 4. Scraping assembly; 401. Scraping sleeve; 402. Magnetic plate; 403. Long magnetic block; 404. Tension spring;

[0027] 5. Height fixing assembly; 501. Rotating tube; 502. Moving circular plate; 503. Outer tube; 504. Through hole; 505. Support plate; 506. Telescopic airbag;

[0028] 6. soil drilling assembly; 601. drill bit; 602. motor. DETAILED DESCRIPTION

[0029] The following will be combined with the attached Figures 1 to 5 The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model provides a device for testing the natural water content of rock and soil in the field through improvement. Figure 1 - Figure 5 As shown, it includes an insert tube assembly 1, which includes an insert tube 101, an inner tube 102 is inserted into the insert tube 101, two handles 103 are fixedly connected to the side wall of the insert tube 101, two side holes 104 are drilled on the side wall of the insert tube 101, and a telescopic assembly 2 is fixedly connected to the upper end of the inner tube 102;

[0031] The telescopic assembly 2 includes a fixed tube 201 fixedly connected to the inner tube 102, a square rod 202 is inserted into the fixed tube 201, a threaded tube 203 is threadedly connected to the fixed tube 201, and the threaded tube 203 is rotatably connected to the square rod 202, an air cylinder 204 is fixedly connected inside the inner tube 102, a piston 205 is slidably connected inside the air cylinder 204, a return spring 206 is fixedly connected between the piston 205 and the inner side wall of the inner tube 102, an air pipe 207 is connected to the lower side wall of the return spring 206, a detection assembly 3 is fixedly connected to the lower end of the air pipe 207, a scraping assembly 4 is fixedly connected to the detection assembly 3, a height fixing assembly 5 is fixedly connected between the inner tube 102 and the insert tube 101, and a soil drilling assembly 6 is fixedly connected to the lower end of the insert tube 101

[0032] In this embodiment: when the insert tube 101 is drilled into the soil and the soil humidity needs to be detected, the staff first needs to rotate the inner tube 102 to make the detection component 3 face the side hole 104, and then rotate the threaded tube 203 so that the threaded tube 203 pushes the square rod 202 to move under the action of the thread, and the square rod 202 pushes the piston 205 to move, so that the air inside the air cylinder 204 is transmitted into the detection cylinder 301 through the air pipe 207, driving the movable plug 302 to move, thereby realizing the extension and retraction of the detection component 3.

[0033] In the above embodiment, in order to make the detection component 3 extend and retract to achieve the purpose of lateral detection of soil, the following methods can be adopted:

[0034] The detection component 3 includes a detection cylinder 301 connected to the air pipe 207, a movable plug 302 is slidably connected inside the detection cylinder 301, two limit ring plates 303 are fixedly connected inside the detection cylinder 301, a soil moisture sensor 304 is fixedly connected to the side wall of the movable plug 302, and a probe 305 is fixedly connected to the soil moisture sensor 304. The scraping component 4 includes a scraping sleeve 401 slidably connected to the probe 305, and a magnetic plate 402 is fixedly connected to the scraping sleeve 401. The inner walls of the front and rear sides of the insertion cylinder 101 are fixedly connected to long magnetic blocks 403 that are magnetically attracted to the magnetic plate 402, and a tension spring 404 is fixedly connected between the magnetic plate 402 and the movable plug 302.

[0035] In a preferred embodiment, when the limiting ring plate 303 is moved by air pressure, the soil moisture sensor 304 moves so that the probe 305 is inserted laterally into the soil to detect the soil. Figure 5 As shown, at this time, the scraping sleeve 401 in the scraping assembly 4 moves with the probe 305. When the detection is completed, the staff rotates the threaded cylinder 203 again to reset the movable plug 302, and then rotates the inner cylinder 102 again to reset the inner cylinder 102. At this time, the magnetic plate 402 will move under the magnetic attraction of the long magnetic block 403, and scrape the soil on the surface of the probe 305, thereby improving the accuracy of the next soil detection by the probe 305.

[0036] refer to Figure 4 and Figure 5 In a preferred embodiment, the height fixing component 5 includes a rotating tube 501 connected to the lower end of the inner tube 102, a movable circular plate 502 is slidably connected inside the inserted tube 101, an outer tube 503 is inserted on the movable circular plate 502, and the outer tube 503 is rotatably connected to the rotating tube 501, and corresponding through holes 504 are drilled on the rotating tube 501 and the outer tube 503, a support plate 505 is fixedly connected inside the inserted tube 101, and a telescopic airbag 506 is fixedly connected between the support plate 505 and the movable circular plate 502, and the soil drilling component 6 includes a drill bit 601 rotatably connected to the lower end of the inserted tube 101, a motor 602 is fixedly connected inside the inserted tube 101, and the output end of the motor 602 is fixedly connected to the drill bit 601.

[0037] In this embodiment, when the rotating tube 501 corresponds to the through hole 504 in the outer tube 503, the telescopic airbag 506 can exchange air with the air inside the inner tube 102. At this time, the inner tube 102 can move freely. When the inner tube 102 rotates 90 degrees, the through hole 504 no longer corresponds. At this time, the height of the inner tube 102 can be fixed. At this time, the state of the inner tube 102 can be used to detect the soil. In addition, in the process of designing the inner tube 102, a hole for ventilation can be drilled at the upper end of the inner tube 102 to avoid the generation of air pressure inside the inner tube 102, which causes the telescopic airbag 506 to be unable to expand and contract.

[0038] Working principle: When in use, first, the staff starts the motor 602, the motor 602 drives the drill bit 601, and then holds the handle 103 to allow the insert tube 101 to drill into the soil, and then the staff moves the inner tube 102 up and down. At this time, the inner tube 102 pulls the telescopic airbag 506 through the rotating tube 501 and the moving circular plate 502. At this time, the rotating tube 501 corresponds to the through hole 504 in the outer tube 503, and the telescopic airbag 506 can exchange air with the inner tube 102, so that the inner tube 102 can move at will. After the staff determines the detection depth of the soil, the staff rotates the inner tube 102. At this time, the through hole 504 no longer corresponds, and the telescopic airbag 506 no longer has the telescopic ability. At this time, the height of the inner tube 102 can play a fixing role;

[0039] While the inner cylinder 102 rotates, the detection assembly 3 will face the side hole 104 at the insert cylinder 101. Then the staff rotates the threaded cylinder 203, so that the threaded cylinder 203 can push the square rod 202 to move while rotating. The square rod 202 pushes the piston 205 to move, so that the air inside the cylinder 204 is transferred into the detection cylinder 301 through the air pipe 207. The air pressure inside the detection cylinder 301 increases, thereby driving the moving plug 302 to move.

[0040] The movement of the soil moisture sensor 304 enables the probe 305 to be inserted laterally into the soil to detect the soil moisture. At this time, the scraping sleeve 401 in the scraping assembly 4 moves with the probe 305. When the detection is completed, the staff rotates the threaded cylinder 203 again to retract the movable plug 302 and then rotates the inner cylinder 102 again to reset the inner cylinder 102. At this time, the magnetic plate 402 will move under the magnetic attraction of the long magnetic block 403 on the inner wall of the insertion cylinder 101, and the soil on the surface of the probe 305 is scraped. The scraping state is as follows: Figure 4 As shown, the accuracy of the next soil detection by the probe 305 is improved.

[0041] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for testing the natural water content of rock and soil in the field, comprising an insert assembly (1), characterized in that: The insert tube assembly (1) comprises an insert tube (101), an inner tube (102) is inserted into the insert tube (101), two handles (103) are fixedly connected to the side wall of the insert tube (101), two side holes (104) are drilled on the side wall of the insert tube (101), and a telescopic assembly (2) is fixedly connected to the upper end of the inner tube (102); The telescopic assembly (2) comprises a fixed tube (201) fixedly connected to an inner tube (102), a square rod (202) being inserted into the fixed tube (201), a threaded tube (203) being threadedly connected to the fixed tube (201), and the threaded tube (203) being rotatably connected to the square rod (202), an air cylinder (204) being fixedly connected inside the inner tube (102), a piston (205) being slidably connected inside the air cylinder (204), and the piston (205) being slidably connected inside the piston (205). A return spring (206) is fixedly connected between the inner wall of the inner cylinder (102) and the return spring (206); an air pipe (207) is communicated with the lower wall of the return spring (206); a detection component (3) is fixedly connected to the lower end of the air pipe (207); a scraping component (4) is fixedly connected to the detection component (3); a height fixing component (5) is fixedly connected between the inner cylinder (102) and the insert cylinder (101); and a soil drilling component (6) is fixedly connected to the lower end of the insert cylinder (101).

2. The device for field testing of natural water content of rock and soil according to claim 1, characterized in that: The detection assembly (3) comprises a detection cylinder (301) connected to the air pipe (207); a movable plug (302) is slidably connected inside the detection cylinder (301); two limit ring plates (303) are fixedly connected inside the detection cylinder (301); a soil moisture sensor (304) is fixedly connected to the side wall of the movable plug (302); and a probe (305) is fixedly connected to the soil moisture sensor (304).

3. The device for field testing natural water content of rock and soil according to claim 2 is characterized by: The scraping assembly (4) comprises a scraping sleeve (401) slidably connected to the probe (305), and a magnetic plate (402) is fixedly connected to the scraping sleeve (401).

4. The device for field testing natural water content of rock and soil according to claim 3 is characterized by: The inner walls on both the front and rear sides of the insert cylinder (101) are fixedly connected with long magnetic blocks (403) that are magnetically attracted to the magnetic plate (402), and a tension spring (404) is fixedly connected between the magnetic plate (402) and the movable plug (302).

5. The device for field testing of natural water content of rock and soil according to claim 4 is characterized by: The height fixing component (5) comprises a rotating tube (501) connected to the lower end of the inner tube (102); a movable circular plate (502) is slidably connected inside the insert tube (101); an outer tube (503) is plugged onto the movable circular plate (502); and the outer tube (503) is rotatably connected to the rotating tube (501).

6. The device for field testing of natural water content of rock and soil according to claim 5, characterized in that: The rotating tube (501) and the outer tube (503) are both provided with corresponding through holes (504), a support plate (505) is fixedly connected inside the insert tube (101), and a telescopic air bag (506) is fixedly connected between the support plate (505) and the movable circular plate (502).

7. The device for field testing natural water content of rock and soil according to claim 6, characterized in that: The soil drilling assembly (6) comprises a drill bit (601) rotatably connected to the lower end of the insert cylinder (101), a motor (602) is fixedly connected inside the insert cylinder (101), and an output end of the motor (602) is fixedly connected to the drill bit (601).

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