Device suitable for segmented collection of loose soil profile monolith

Abstract

The utility model relates to a device suitable for sectionally collecting a whole-section sample of a loose soil profile, which comprises a sampling barrel inserted into soil from the soil profile from top to bottom, a piston connected in the sampling barrel in a sliding manner and matched with the inner diameter of the sampling barrel, and a push rod connected to the piston and transversely penetrating through the bottom of the barrel and extending out of the sampling barrel, scales for measuring the length of the push rod inserted into the sampling barrel are further fixedly connected to the barrel bottom, and a baffle for preventing soil from falling off from the barrel opening is further inserted into the sampling barrel. When the soil sampler is used, the push rod is pushed to be inserted into the sampling barrel by a proper length, the push rod is fixed, then the sampling barrel is inserted into a section from the upper part, when the piston is flush with the section, the depth sampling at the height can be completed, and then the baffle is inserted into the sampling barrel to limit soil from falling off from a barrel opening; and then the sampling barrel is taken out from the soil from the upper part, so that the soil sampling at the height and depth is completed, and the soil at the same height and different depths can be flexibly sampled according to requirements.

Description

Technical Field

[0001] The utility model relates to the field of soil, in particular to the technical field of outdoor soil collection, and specifically refers to a device suitable for collecting whole-section specimens of loose soil profiles in sections. Background Art

[0002] In natural science research, it is necessary to adopt and collect materials such as soil, atmosphere, water, and atmosphere and water. Atmosphere and water all belong to the materials that are easier to collect, and only need simple utensil to collect. For soil, how to completely collect soil profile specimens is always difficult work. The collection operation steps of the whole section specimen of soil are: first dig out a pit, flatten the pit wall, repair the earth column by the size of the wooden box, put on the wooden box, shovel away the soil wall, but the soil cohesion of the loose texture is poor, and the whole section specimen is easily scattered and collapsed during sampling, causing sampling to be impossible, causing the whole section specimen to be difficult to collect, and existing technology most of all wooden board bonding method, but this method is time-consuming and labor-intensive.

[0003] When sampling the entire soil profile, first dig a groove at the sampling point and extend one wall of the groove vertically, so that the groove wall is used as the soil profile for sampling. When sampling structurally loose soil, since the structurally loose soil sample contains very little clay particles, it has no plasticity or very little plasticity, poor cohesion and adhesion, fast water seepage rate, and poor water and fertilizer retention performance, the Chinese invention patent with application number CN202210146720.3 discloses a soil profile specimen extraction device and sampling method, but this method can only sample at a fixed depth, and cannot flexibly adjust the sampling depth. At the same time, it cannot address the problem of easy scattering and collapse when collecting entire sections of soil profiles with poor cohesion. Utility Model Content

[0004] In view of the deficiencies of the existing technology, the utility model provides a device suitable for the segmented collection of whole-section specimens of loose soil profile, which is convenient for sampling structural loose soil and can flexibly sample soil at different depths at the same height according to needs.

[0005] The utility model is realized through the following technical scheme: a device suitable for collecting segmented specimens of a loose soil profile, comprising a sampling barrel inserted into the soil from above the soil profile, a piston slidably connected in the sampling barrel and adapted to the inner diameter of the sampling barrel, the piston being connected to a push rod which passes horizontally through the bottom of the barrel and extends to the outside of the sampling barrel, and the bottom of the barrel being fixed with a scale for measuring the length of the push rod inserted into the sampling barrel.

[0006] When the utility model is used, when sampling soil at different heights of the same soil profile, the method of sampling in sequence from top to bottom is adopted to perform segmented sampling, thus avoiding the problem of loosening and collapsing after the whole soil specimen is collected; the depth of the sampling tube is fixed at a, so the push rod is pushed to drive the piston to move toward the tube mouth, and the length of the push rod inserted into the sampling tube at this time is b, and the value of ab is the depth of the soil sampling, so after the sampling depth is determined, the push rod is pushed to insert into the sampling tube to an appropriate length, and then the push rod is pressed to fix the push rod , and then insert the sampling tube horizontally into the section, and then judge the position of the piston from the outer side of the tube bottom according to b and the thickness of the tube bottom. When the piston is flush with the section, the depth sampling of this height can be completed, and then the sampling tube is driven to move upward, and the sampling tube is taken out from the soil from above, that is, the soil sampling of this height and depth is completed, and then the soil at this height is taken out from the sampling tube, and then the soil at the next height is continued to be sampled. Through the coordinated setting of the push rod and the sampling tube, the soil of different depths at the same height can be sampled flexibly according to needs.

[0007] Preferably, a plurality of transversely extending springs are provided between the piston and the bottom of the sampling cylinder, and two ends of the springs are connected to the piston and the bottom of the sampling cylinder respectively.

[0008] This preferred solution facilitates the reset of the piston by providing a spring.

[0009] Preferably, a slide is fixed to the bottom of the cylinder, the push rod is slidably connected in the slide, a screw is fixed to the top of the push rod and extends radially to the outside of the slide, a nut is fixed to the screw, a long hole is provided on the slide for the screw to move laterally, the size of the nut is larger than the size of the screw, and the slide is provided with the scale extending laterally and located on one side of the long hole.

[0010] When this preferred solution is in use, the nut drives the screw to slide in the long hole, thereby adjusting the lateral movement of the push rod, and the nut is tightened to push onto the slide cylinder, thereby limiting the lateral sliding of the screw and push rod.

[0011] Preferably, the screw rod is further provided with a sleeve located between the nut and the slide cylinder, and a pointer pointing to the scale is fixedly connected to the sleeve.

[0012] This preferred solution facilitates quick reading by setting a pointer, and after the pointer points to the corresponding scale, the nut is pushed onto the sleeve and drives the sleeve to be pushed onto the slide, thereby achieving positioning of the push rod.

[0013] Preferably, two sliders inserted into the screw and arranged opposite to each other are fixedly connected to the sleeve, and the sliders are connected to the screw in an axially sliding manner along the screw.

[0014] This preferred solution ensures that the pointer always points to the scale by setting the slider to slide along the axial direction of the screw. At the same time, the setting of the sleeve sliding on the screw also eliminates the friction between the sleeve and the slide cylinder, making it easier for the push rod to slide in the slide cylinder.

[0015] Preferably, an annular cone is fixedly connected to the tube mouth of the sampling tube, the large diameter end of the annular cone is fixedly connected to the tube mouth, and the inner diameter of the annular cone is adapted to the inner diameter of the sampling tube.

[0016] In this preferred solution, the annular cone is provided to sharpen the tube mouth, thereby facilitating the insertion of the sampling tube into the soil.

[0017] Preferably, the sampling tube is made of transparent material.

[0018] This preferred solution facilitates observation of the position of the piston in the sampling cylinder by providing a transparent material.

[0019] Preferably, the sampling tube is further provided with a baffle which is inserted into the sampling tube along the radial direction to prevent soil from falling from the tube mouth, and a long hole for inserting the baffle into the sampling tube is opened on the top surface of the sampling tube.

[0020] In this preferred solution, by providing the long hole and the baffle, the baffle is driven to penetrate the long hole and be inserted into the sampling tube, thereby limiting the soil from falling from the tube mouth during the rising process of the sampling tube.

[0021] The beneficial effects of the present invention are as follows: when sampling soil at different heights of the same soil profile, the method of sampling from top to bottom is adopted to perform segmented sampling, thus avoiding the problem of loosening and collapsing after collecting the entire soil sample. The depth of the sampling tube is a certain depth, so the push rod is pushed to drive the piston to move toward the tube mouth. At this time, the length of the push rod inserted into the sampling tube is b, and the value of ab is the depth of the soil sampling. Therefore, after determining the sampling depth, the push rod is pushed to insert the appropriate length into the sampling tube, and then the push rod is pressed to fix the push rod. Rod, and then insert the sampling tube horizontally into the section, and then judge the position of the piston from the outer side of the tube bottom according to b and the thickness of the tube bottom. When the piston is flush with the section, the depth sampling of this height can be completed, and then the sampling tube is driven to move upward, and the sampling tube is taken out from the soil from above, that is, the soil sampling of this height and depth is completed, and then the soil at this height is taken out from the sampling tube, and the soil at the next height is continued to be sampled. Through the coordinated setting of the push rod and the sampling tube, the soil of different depths at the same height can be sampled flexibly according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 for Figure 1A in the middle is an enlarged schematic diagram;

[0024] Figure 3 It is a schematic diagram of the slide from above;

[0025] As shown in the figure:

[0026] 1. Soil profile, 2. Sampling tube, 3. Push rod, 4. Tube mouth, 5. Annular cone, 6. Piston, 7. Spring, 8. Long hole, 9. Slide tube, 10. Screw, 11. Pointer, 12. Slider, 13. Nut, 14. Pointer, 15. Scale, 16. Tube bottom, 17. Baffle. DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0028] Refer to the attached Figure 1-3 The utility model is a device suitable for collecting segmented specimens of a loose soil profile, comprising a sampling tube 2 which is inserted into the soil transversely from the soil profile. The sampling tube 2 is made of a transparent material, such as organic glass.

[0029] The sampling cylinder 2 extends laterally, and a piston 6 adapted to the inner diameter of the sampling cylinder 2 slides inside the sampling cylinder 2. The piston 6 is connected to a push rod 3 that passes through the bottom of the cylinder laterally and extends to the outside of the sampling cylinder 2. The piston 6, the sampling cylinder 2, and the push rod 3 are coaxially arranged.

[0030] A plurality of transversely extending springs 7 are further provided between the piston 6 and the bottom of the sampling cylinder 2 , and the two ends of the spring 7 are connected to the piston 6 and the bottom of the sampling cylinder 2 respectively.

[0031] A slide 9 is fixed to the outer surface of the bottom of the cylinder and is coaxial with the sampling cylinder 2. The push rod 3 is slidably connected to the slide 9. A screw 10 is fixed to the push rod 3 and extends radially to the outside of the slide 9. A nut 13 is fixed to the screw 10. A long hole 8 is provided on the slide 9 for the screw 10 to move laterally. The size of the nut 13 is larger than that of the screw 10. The slide 9 is provided with a scale 15 that extends laterally and is located on one side of the long hole 8.

[0032] The screw 10 is also provided with a sleeve located between the nut 13 and the slide 9, and a pointer pointing to the scale 15 is fixed to the sleeve. Two sliders 12 inserted into the screw 10 and arranged opposite to each other are fixed to the sleeve. The sliders 12 are connected to the screw 10 by sliding along the axial direction of the screw 10.

[0033] An annular cone 5 is fixedly connected to the tube opening of the sampling tube 2 . The large diameter end of the annular cone 5 is fixedly connected to the tube opening. The inner diameter of the annular cone 5 is adapted to the inner diameter of the sampling tube 2 .

[0034] A baffle 17 extending radially along the sampling barrel is also inserted into the sampling barrel. A long hole is provided on the top surface of the sampling barrel for the baffle to be inserted into the sampling barrel. The size of the baffle is adapted to the size of the inner cavity of the sampling barrel. The baffle is inserted into the sampling barrel along the radial direction of the sampling barrel to block the sampling barrel. Through the setting of the long hole and the baffle, the baffle is driven to pass through the long hole and inserted into the sampling barrel. During the rising process of the sampling barrel, the soil is restricted from falling from the barrel mouth. A limit plate is fixed on the top surface of the baffle. The width of the limit plate is greater than the width of the long hole. Due to the setting of the baffle, the actual sampling depth is the distance between the baffle and the piston.

[0035] When the utility model is used, when sampling soil at different heights of the same soil profile, the sampling is carried out in sections by sampling from top to bottom in sequence, thus avoiding the problem of loosening and collapsing of the soil specimens after the entire section is collected;

[0036] In the sampling tube, the spring pushes the piston to the bottom of the sampling tube. At this time, the distance between the baffle and the piston is a, so the push rod 3 is pushed to drive the piston 6 to move toward the tube mouth. At this time, the length of the push rod 3 inserted into the sampling tube 2 is b. The value of ab is the depth of soil sampling. Therefore, after the sampling depth is determined, the screw 10 is driven by the nut 13, so that the screw 10 drives the push rod 3 to move horizontally in the sampling tube 2. At this time, the spring 7 is stretched. After the pointer is designated to the appropriate scale 15, the nut 13 is turned to drive the sleeve to the top of the sliding sleeve, thereby fixing the position of the push rod 3. , and then insert the sampling tube 2 horizontally into the cross section. Since the sampling tube 2 is transparent, when it is observed that the piston 6 is flush with the cross section, the depth sampling of this height can be completed, and then the baffle is inserted into the sampling tube, and then the sampling tube 2 is driven to move upward, and the sampling tube 2 is taken out from the soil from above, that is, the soil sampling of this height and depth is completed, and then the soil at this height is taken out from the sampling tube 2, and the soil at the next height is continued to be sampled. Through the coordinated arrangement of the push rod 3 and the sampling tube 2, the soil of different depths at the same height can be sampled flexibly according to needs.

[0037] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A device suitable for collecting whole-section specimens of loose soil profiles in sections, characterized by: The invention comprises a sampling tube (2) which is inserted into the soil transversely from the soil profile, a piston (6) which is slidably connected in the sampling tube (2) and is adapted to the inner diameter of the sampling tube (2), the piston (6) being connected to a push rod (3) which passes through the bottom of the tube transversely and extends to the outside of the sampling tube (2), and a scale (15) for measuring the length of the push rod (3) inserted into the sampling tube (2) being fixed to the bottom of the tube.

2. The device for collecting whole-section specimens of loose soil profile according to claim 1 is characterized in that: A plurality of transversely extending springs (7) are further provided between the piston (6) and the bottom of the sampling cylinder (2), and the two ends of the springs (7) are respectively connected to the piston (6) and the bottom of the sampling cylinder (2).

3. The device for collecting segmented samples of a loose soil profile according to claim 1, characterized in that: A slide (9) is fixed to the bottom of the cylinder, and the push rod (3) is slidably connected in the slide (9). A screw (10) is fixed to the top of the push rod (3) and extends radially to the outside of the slide (9). A nut (13) is fixed to the screw (10). A long hole (8) for the screw (10) to move laterally is provided on the slide (9). The size of the nut (13) is larger than that of the screw (10). The slide (9) is provided with the scale (15) extending laterally and located on one side of the long hole (8).

4. The device for collecting whole-section specimens of loose soil profiles according to claim 3, characterized in that: The screw rod (10) is further provided with a sleeve located between the nut (13) and the slide cylinder (9), and a pointer pointing to the scale (15) is fixedly connected to the sleeve.

5. The device for collecting whole-section specimens of loose soil profiles according to claim 4, characterized in that: Two sliders (12) inserted into the screw rod (10) and arranged opposite to each other are fixedly connected to the sleeve, and the sliders (12) are connected to the screw rod (10) in an axially sliding manner along the screw rod (10).

6. The device for collecting whole-section specimens of loose soil profile according to claim 1, characterized in that: An annular cone (5) is fixedly connected to the tube mouth of the sampling tube (2), the large diameter end of the annular cone (5) is fixedly connected to the tube mouth, and the inner diameter of the annular cone (5) is adapted to the inner diameter of the sampling tube (2).

7. The device for collecting segmented samples of a loose soil profile according to claim 1, characterized in that: The sampling tube (2) is made of transparent material.

8. The device for collecting whole-section specimens of loose soil profile according to claim 1, characterized in that: The sampling barrel is also provided with a baffle (17) inserted into the sampling barrel along the radial direction of the sampling barrel to prevent soil from falling from the barrel opening, and a long hole for inserting the baffle into the sampling barrel is provided on the top surface of the sampling barrel.

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