Saline-alkali soil deep sampling device

Abstract

The utility model provides a saline-alkali soil deep sampling device which comprises a shovel rod and a sampling shovel, the top of the sampling shovel is fixedly connected with a connecting insertion hole, and the shovel rod is detachably connected with the connecting insertion hole; a buckle piece is arranged at the bottom of the sampling shovel and is hinged to the inner wall of the shovel body of the sampling shovel; one end of a spring is fixedly connected to the inner wall of the shovel body of the sampling shovel, and the other end of the spring is fixed on the buckle piece; the upper end of the outer wall of a shovel body of the sampling shovel is provided with a first arc-shaped sharp corner structure attached to the outer wall of the shovel body, and the first arc-shaped sharp corner structure is gradually shrunk from bottom to top; a second arc-shaped sharp corner structure attached to the outer wall of the shovel body is arranged at the bottom end of the shovel body of the sampling shovel, and the second arc-shaped sharp corner structure is gradually shrunk from top to bottom. The sampling device provided by the utility model can be used for completely taking out a saline-alkali soil sample with high moisture content, loose soil and high soil viscosity, and can save physical strength during sampling.

Description

Technical Field

[0001] The utility model relates to a soil sampling device, in particular to a deep soil sampling device for saline-alkali land. Background Art

[0002] Saline-alkali land is a type of land where salts accumulate. The deep soil in saline-alkali land has a high moisture content, and the soil is interlayered and has a complex structure that is both loose and dense, with various variations.

[0003] The Chinese patent with announcement number CN209858253U provides a Luoyang shovel for collecting different types of soil, including a handle, a shovel rod, a pedal part and a set of sampling parts, and the sampling part includes several shovel heads of different specifications. However, the universal shovel head, sandy shovel head, gravel shovel head and clay shovel head disclosed by the patent still cannot solve the problem that the existing sampling equipment is difficult to work effectively for special landforms and special surface matrix types, and cannot completely remove samples for situations such as high water content, loose soil and high soil viscosity. And when the adsorption force of clay is large, it often takes a lot of effort to extract the sampling device. Summary of the invention

[0004] The utility model aims to solve the above technical problems and provide a device for deep sampling of saline-alkali soil, which can completely take out saline-alkali soil samples with high water content, loose soil and high soil viscosity, and can save physical strength during sampling.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A deep soil sampling device for saline-alkali land comprises a shovel rod and a sampling shovel, wherein a connection socket is fixedly connected to the top of the sampling shovel for detachable connection of the shovel rod; a buckle plate is provided at the bottom of the sampling shovel, and the buckle plate is hinged to the inner wall of the shovel body of the sampling shovel; one end of a spring is fixedly connected to the inner wall of the shovel body of the sampling shovel, and the other end is fixed to the buckle plate; the upper end of the shovel body wall of the sampling shovel is provided with a first arc-shaped sharp-angle structure that fits the outer wall of the shovel body and is gradually contracted from bottom to top; the bottom end of the shovel body of the sampling shovel is provided with a second arc-shaped sharp-angle structure that fits the outer wall of the shovel body and is gradually contracted from top to bottom.

[0007] Preferably, the cross-section of the shovel body of the sampling shovel is semicircular or U-shaped.

[0008] Preferably, the buckle piece is semicircular or U-shaped and corresponds to the inner wall of the shovel body.

[0009] Preferably, the buckle piece is hinged to the inner wall of the shovel body of the sampling shovel through a hinge.

[0010] Preferably, the first arc-shaped pointed structure has a pointed angle of 30°, a height of 1 cm, and a width of 0.5 cm.

[0011] Preferably, the outer lower edge of the first arc-shaped pointed structure is rounded.

[0012] Preferably, the first arc-shaped pointed structure has a pointed angle of 30°, a height of 1 cm, and a width of 0.5 cm.

[0013] Preferably, the shovel body of the sampling shovel is integrally formed with the first arc-shaped sharp-angle structure, the second arc-shaped sharp-angle structure and the connecting socket.

[0014] Preferably, the bottom end of the shovel body of the sampling shovel is blade-shaped.

[0015] Preferably, the sampling shovel is made of corrosion-resistant metal material.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides a deep soil sampling device for saline-alkali land. Through the action of a buckle plate and a spring, the device is in an open state during drilling, and is in a closed state when drilling is stopped and lifted up, thereby cutting off the soil core and leaving the soil sample inside the drill bit to achieve the sampling purpose. The first arc-shaped sharp-angle structure and the second arc-shaped sharp-angle structure of the outer wall of the shovel body can save physical strength during drilling and are more conducive to lifting the drill tool when drilling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of the isolated structure of a deep sampling device for saline-alkali soil according to a preferred embodiment of the present invention.

[0019] Figure 2 This is a front view structural schematic diagram of the sampling shovel provided by the utility model.

[0020] Figure 3 The utility model is a side cross-sectional schematic diagram of a sampling shovel provided by the utility model.

[0021] Figure 4 This is a schematic diagram of the drilling state of the sampling shovel provided by the utility model when in use.

[0022] Figure 5 This is a schematic diagram of the drilling state of the sampling shovel provided by the utility model when in use.

[0023] Figure 6 for Figure 2 A partial enlarged schematic diagram of the first arc-shaped sharp-angle structure.

[0024] Figure 7 for Figure 2 A partial enlarged schematic diagram of the second arc-shaped sharp-cornered structure.

[0025] Reference numerals

[0026] 1: sampling shovel; 11: shovel body; 12: first arc-shaped sharp angle structure; 13: second arc-shaped sharp angle structure; 14: buckle; 15: spring; 16: hinge; 17: connecting socket; 2: shovel rod; θ1: sharp angle; θ2: sharp angle, W1: width; W2: width. DETAILED DESCRIPTION

[0027] The utility model mainly improves the existing shallow drilling, that is, optimizes the soil sampling device. The main characteristics of saline-alkali soil are high water content, interlayered soil, complex structure, loose and dense, and various changes. Ordinary equipment cannot take out the sample completely. In response to such problems, this utility model optimizes the deep sampling device of saline-alkali soil.

[0028] The following is a specific embodiment combined with the drawings to illustrate the structure of the utility model and the technical effects to be achieved. The selected embodiment is only used for explanation and is not intended to limit the scope of the utility model.

[0029] like Figures 1 to 5 As shown ( Figure 1 , 4 , 5, the spring is not shown), which is a deep soil sampling device for saline-alkali land of the utility model, comprising: a shovel rod 2 and a sampling shovel 1, the top of the sampling shovel 1 is fixedly connected to a connecting socket 17, and the sampling shovel 1 is detachably connected to the shovel rod 2 through the connecting socket 17. The shovel body 11 of the sampling shovel has a U-shaped or semicircular cross section, and its bottom end is blade-shaped, and the bottom of the sampling shovel 1 has a semicircular or U-shaped buckle piece 14. The size of the buckle 14 is smaller than the cross-sectional size of the inner wall of the shovel body 11, and its shape is semicircular or U-shaped corresponding to the inner wall of the shovel body. One side of the arc-shaped edge of the buckle 14 is hinged to the inner wall of the shovel body 11 of the sampling shovel through a hinge 16; one end of a spring 15 is fixedly connected to the inner side of the sampling shovel 1, and the other end is fixed to the upper side of the buckle 14; the upper end of the outer wall of the shovel body 11 is provided with a first arc-shaped sharp-angle structure 12 that fits the outer wall of the shovel body, which is gradually reduced from bottom to top, and the outer lower edge of the first arc-shaped sharp-angle structure 12 is rounded; the bottom end of the shovel body 11 of the sampling shovel is provided with a second arc-shaped sharp-angle structure 13 that fits the outer wall of the shovel body, and the cross-section of the second arc-shaped sharp-angle structure 13 is triangular, and is gradually reduced from top to bottom. The first arc-shaped sharp-angle structure 12, the second arc-shaped sharp-angle structure 13, the shovel body 11 and the connecting socket 17 are integrally formed.

[0030] like Figure 6 As shown, the first arc-shaped sharp corner structure 12 has a sharp corner angle θ1 of 30°, a height of 1 cm, and a width W1 of 0.5 cm; Figure 7 As shown, the second arc-shaped pointed structure 13 has a pointed angle θ2 of 30°, a height of 1 cm, and a width W2 of 0.5 cm.

[0031] The sampling shovel is made of corrosion-resistant metal material to adapt to the sampling environment of saline-alkali soil.

[0032] When in use, connect the sampling shovel to the shovel rod, and drill into the soil perpendicular to the ground. Figure 4 As shown in the figure, during the drilling process, the straight side of the buckle is squeezed by the soil and turned inward and opened upward, and the spring contracts, so that the sampling shovel is in an open state, and the soil enters the sampling shovel. Figure 5 As shown, when the drilling stops and the sampling device is pulled up, the spring stretches, and the buckle is closed by the tension of the spring, cutting off the soil core, so that the soil sample remains relatively intact in the sampling shovel, and saline-alkali soil samples with high water content, loose soil and high soil viscosity can be completely taken out.

[0033] The outer wall of the shovel is optimized. The first arc-shaped sharp corner structure is used for lifting, and the second arc-shaped sharp corner structure is used for drilling. The sharp head treatment at the lower end saves more energy during the drilling process. The rounded lower edge of the outer side of the first arc-shaped sharp corner structure further reduces the resistance during the drilling process. This solves the problem that the sampling shovel is difficult to drill and lift in the soil due to the strong adsorption of clay when collecting saline-alkali soil.

[0034] The above embodiments may be modified in a number of ways without departing from the scope of the present invention. Therefore, the structures included in the above description and shown in the drawings should be regarded as illustrative rather than limiting the scope of protection of the patent application of the present invention.

Claims

1. A deep soil sampling device for saline-alkali land, comprising a shovel rod and a sampling shovel, characterized in that: The top of the sampling shovel is fixedly connected to a connecting socket for detachable connection of the shovel rod; the bottom of the sampling shovel is provided with a buckle plate, which is hinged to the inner wall of the shovel body of the sampling shovel; one end of a spring is fixedly connected to the inner wall of the shovel body of the sampling shovel, and the other end is fixed to the buckle plate; the upper end of the shovel body wall of the sampling shovel is provided with a first arc-shaped sharp-angle structure that fits the outer wall of the shovel body and is gradually contracted from bottom to top; the bottom end of the shovel body of the sampling shovel is provided with a second arc-shaped sharp-angle structure that fits the outer wall of the shovel body and is gradually contracted from top to bottom.

2. The deep soil sampling device for saline-alkali land according to claim 1, characterized in that: The cross section of the shovel body of the sampling shovel is semicircular or U-shaped.

3. The deep soil sampling device for saline-alkali land according to claim 2, characterized in that: The buckle piece is semicircular or U-shaped and corresponds to the inner wall of the shovel body.

4. The deep soil sampling device for saline-alkali land according to claim 1, characterized in that: The buckle piece is hinged to the inner wall of the shovel body of the sampling shovel through a hinge.

5. The deep soil sampling device for saline-alkali land according to claim 1, characterized in that: The first arc-shaped pointed structure has a pointed angle of 30°, a height of 1 cm, and a width of 0.5 cm.

6. The deep soil sampling device for saline-alkali land according to claim 5, characterized in that: The outer lower edge of the first arc-shaped pointed structure is rounded.

7. The deep soil sampling device for saline-alkali land according to claim 1, characterized in that: The first arc-shaped pointed structure has a pointed angle of 30°, a height of 1 cm, and a width of 0.5 cm.

8. The deep soil sampling device for saline-alkali land according to claim 1, characterized in that: The shovel body of the sampling shovel is integrally formed with the first arc-shaped sharp-angle structure, the second arc-shaped sharp-angle structure and the connecting socket.

9. The deep soil sampling device for saline-alkali land according to claim 1, characterized in that: The bottom end of the shovel body of the sampling shovel is blade-shaped.

10. The deep soil sampling device for saline-alkali land according to claim 1, characterized in that: The sampling shovel is made of corrosion-resistant metal material.

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