A digging device designed for sandy environments.

Abstract

This utility model discloses a digging device for sandy soil environments, belonging to the technical field of sand digging equipment. It includes a rotating handle, drill rods, a column barrel, an arc-shaped barrel, a spiral drill bit, and support barrels. Several drill rods are detachably mounted on the lower part of the middle end of the rotating handle. A column barrel is detachably mounted on the lower end of the drill rods. An arc-shaped barrel is mounted on the lower end of the column barrel, and a spiral drill bit is housed inside the arc-shaped barrel. The spiral drill bit is fixed to the lower end of the top wall of the column barrel via a fixed shaft. Several support barrels are detachably mounted on the outer side of the drill rods. This device has good portability, is not limited by complex geographical conditions, and adopts a multi-segment casing splicing design, allowing for unlimited depth digging of shallow groundwater wells, saving time and labor. The excavated shallow groundwater wells can serve as long-term groundwater level observation points or shallow groundwater sampling points. The semi-enclosed design of the drill bit bottom effectively reduces the problem of sand sliding out of the drill bit due to water flow.

Description

Technical Field

[0001] This utility model relates to the technical field of sand excavation equipment, specifically to an excavation device for sandy environments. Background Technology

[0002] Shallow groundwater is an important component of global water resources and is crucial for maintaining ecological security and sustainable economic and social development in arid regions. As a link in the water cycle of groundwater-soil-plant-atmosphere continuum, shallow groundwater plays a vital role in ensuring the stability and healthy development of arid ecosystems. Therefore, long-term dynamic monitoring of shallow groundwater levels is urgently needed. However, the hidden nature of groundwater makes its monitoring significantly more difficult.

[0003] Traditional shallow groundwater level observation and sampling often rely on mechanical drilling platforms, which requires a lot of manpower, material resources and financial resources, and is limited by transportation and geographical conditions. In addition, due to the uncertainty of the groundwater flow field, traditional groundwater level observation wells are difficult to conduct large-scale and intensive observation and sampling at the regional scale. The number of wells that can be dug and sampled is often limited, which makes it impossible to better meet the needs of scientific research.

[0004] To address the aforementioned issues, a sand excavation device is proposed that can avoid the use of mechanical drilling platforms and can be completed by only two people. Summary of the Invention

[0005] This invention addresses the aforementioned problems by providing a digging device for sandy soil environments. It solves the problem that traditional shallow groundwater level observation and sampling relies heavily on mechanical drilling platforms, which often consumes a large amount of manpower, material resources, and financial resources, and is limited by transportation and geographical conditions. Furthermore, due to the uncertainty of the groundwater flow field, traditional groundwater level observation wells are difficult to conduct large-scale and intensive observation and sampling at a regional scale. The number of wells that can be excavated and sampled is often limited, which makes it impossible to better meet the needs of scientific research.

[0006] The technical solution adopted by this utility model is as follows: it includes a rotating handle, a drill rod, a column barrel, an arc-shaped barrel, a spiral drill bit, and a support barrel;

[0007] The lower part of the middle end of the rotating handle is detachably provided with several drill rods;

[0008] The lower end of the drill rod located at the bottom is detachably equipped with a column barrel, and the lower end of the column barrel is equipped with an arc-shaped barrel;

[0009] The arc-shaped barrel is equipped with a spiral drill bit;

[0010] The auger drill bit is fixedly mounted on the lower end of the top wall of the column barrel via a fixed shaft;

[0011] Several support barrels are detachably provided on the outer side of each of the aforementioned drill rods.

[0012] Furthermore, the top of the uppermost drill rod is detachably connected to the lower middle section of the rotating shank via a first threaded post;

[0013] The two adjacent drill pipes are detachably connected by a second threaded post;

[0014] The lower end of the drill rod, located at the lowest point, is detachably connected to the top wall of the column barrel via a third threaded post.

[0015] Furthermore, the side wall of the column barrel is provided with a through hole, and a glass plate is detachably installed in the through hole.

[0016] Furthermore, the auger drill bit has three rotating cutting edges on its upper part;

[0017] The three rotating blades are arranged at equal angles on the side wall of the fixed shaft;

[0018] All three rotating blades are inclinedly arranged on the outer wall of the fixed shaft.

[0019] Furthermore, a rotating disk is movably provided between two adjacent support barrels;

[0020] The upper and lower ends of the two rotating disks are respectively fixed with fourth threaded posts;

[0021] The two fourth threaded posts located on the same rotating disk are respectively threadedly connected to the two adjacent support barrels.

[0022] Furthermore, rubber pads are detachably fitted on the outer walls of both sides of the handle.

[0023] Furthermore, some of the drill pipes have scale lines on their outer walls for recording drilling depth.

[0024] Advantages of this utility model:

[0025] This device boasts excellent portability, is not limited by complex geographical conditions, and can effectively save research costs, optimize the allocation of research funds, and enhance the value of scientific research. This invention employs a multi-segment casing splicing design, allowing for unlimited depth excavation of shallow groundwater wells, saving time and labor. The excavated shallow groundwater wells can serve as long-term groundwater level observation points or shallow groundwater sampling points, meeting the needs of relevant research work in the field of earth sciences in the region. The bottom of the drill bit in this device is designed to be semi-enclosed (leaving only three rotating cutting edges as sand inlets), effectively reducing the problem of sand sliding out of the drill bit due to water flow.

[0026] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages, which will be further described in detail below with reference to the figures. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the arc-shaped barrel of this utility model;

[0030] Figure 3 This is a schematic diagram of the installation of the column barrel and the arc-shaped barrel of this utility model;

[0031] Figure 4 This is a schematic diagram showing the installation of the spiral drill bit and the rotating cutting edge of this utility model;

[0032] Figure 5 This is a schematic diagram of the installation of the support bucket of this utility model;

[0033] Figure 6 This is a schematic diagram showing the positions of the support bucket and the drill rod of this utility model.

[0034] Figure label:

[0035] 1 is the rotating handle, 2 is the drill rod, 3 is the second threaded column, 4 is the column barrel, 5 is the arc-shaped barrel, 6 is the rotating cutting edge, 7 is the auger drill bit, and 8 is the support barrel.

[0036] 401 is a through hole;

[0037] 801 is a rotating disk, and 802 is the fourth threaded post. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] refer to Figures 1 to 6 A digging device for sandy environments includes a rotating handle 1, a drill rod 2, a column barrel 4, an arc-shaped barrel 5, a spiral drill bit 7, and a support barrel 8.

[0041] Several drill rods 2 are detachably installed at the lower middle end of the rotating handle 1;

[0042] The lower end of the drill rod 2 at the bottom is detachably fitted with a column barrel 4, and the lower end of the column barrel 4 is fitted with an arc-shaped barrel 5.

[0043] A spiral drill bit 7 is installed inside the arc-shaped barrel 5;

[0044] The auger drill bit 7 is fixedly installed at the lower end of the top wall of the column barrel 4 via a fixed shaft;

[0045] Several support barrels 8 are detachably installed on the outer side of several drill rods 2. The rotating handle 1 can drive several drill rods 2 to rotate by manual rotation. The rotation of the drill rods 2 drives the column barrel 4 below to rotate. The rotation of the column barrel 4 drives the arc-shaped barrel 5 fixed to it to rotate. During the rotation of the column barrel 4 and the arc-shaped barrel 5, the internal spiral drill bit 7 will start to rotate. When the spiral drill bit 7 contacts the soil surface, it can be rotated to make the spiral drill bit 7 spiral down to drill the soil. Every time the spiral drill bit drills down 1 to 3 meters, additional support barrels 8 need to be added. The support barrels 8 are used to support the soil surface to prevent the soil surface from collapsing after passing through the borehole, which would cause the drill bit to be unable to be removed.

[0046] The top of the uppermost drill rod 2 is detachably connected to the lower middle section of the rotating shank 1 via a first threaded post;

[0047] Two adjacent drill pipes 2 are detachably connected by a second threaded post 3;

[0048] The lower end of the drill rod 2 at the bottom is detachably connected to the top wall of the column barrel 4 via a third threaded post. The standard length of each drill rod 2 is 1m. After splicing the corresponding threaded post and the corresponding drill rod 2 in a counterclockwise direction, drilling can be achieved by rotating the handle 1 in a clockwise direction. This ensures that each section of the drill rod will not fall off during the drilling process. After drilling to a certain depth, the total length of the drill rod 2 can be extended by removing the uppermost handle 1 and reconnecting it using the threaded method to reach the expected drilling depth.

[0049] The side wall of the column barrel 4 is provided with a through hole 401, and a glass plate is detachably installed in the through hole 401. By opening the glass plate, the through hole 401 can be exposed, and the sand sample located in the column barrel 4 can be poured out from it.

[0050] Three rotating cutting edges 6 are mounted on the top of the auger bit 7;

[0051] Three rotating cutting edges are mounted at equal angles on the side wall of the fixed shaft;

[0052] The three rotating cutterheads 6 are all installed at an angle on the outer wall of the fixed shaft. Because the sandy soil in the sandy environment is loose, especially when the soil is extracted to the shallow groundwater level (near the saturated layer), the sand exists in a semi-solid form under the action of water and has strong fluidity. Ordinary spiral soil extraction equipment cannot extract the sand. At this time, the three rotating cutterheads can act as sand inlets to each other, effectively reducing the sand from sliding out of the drill bit with the action of water. The inclined installation of the three rotating cutterheads 6 also effectively increases the amount of soil extracted.

[0053] A rotating disk 801 is movably installed between two adjacent support barrels 8;

[0054] The upper and lower ends of the two rotating disks 801 are respectively fixedly installed with fourth threaded posts 802;

[0055] Two fourth threaded posts 802 located on the same rotating disk 801 are threadedly connected to two adjacent support barrels 8 respectively. The two adjacent support barrels 8 can be quickly removed or installed by rotating the rotating disk 801.

[0056] Rubber pads are detachably fitted on the outer walls of both sides of the handle 1. Their purpose is to protect the user's hands when turning the handle 1 and improve the user's comfort.

[0057] Several drill rods have scale lines installed on their outer walls to record the drilling depth. This is to facilitate timely viewing and observation of the drilling depth and to record the depth parameters of the soil extracted.

[0058] The implementation method of this utility model:

[0059] After assembling the column barrel 4, several drill rods 2 and the rotating handle 1, perpendicular to the target ground, hold the rotating handle 1 with both hands and manually spiral it downwards in a clockwise direction. Since the soil in the sandy environment is relatively loose, there is no need to apply too much pressure during the advancement process. Most of the time, it can be completed by relying on gravity.

[0060] Referring to the scale line on the drill rod 2, when the initial advance reaches near the scale line, lift the handle 1 in time to make the column barrel 4 below lift off the ground, open the glass plate and pour out the sand sample located in the column barrel 4 from the through hole 401 and record the depth of this part of the sand sample.

[0061] Repeat the above operation until the previous soil sampling depth is reached. Then, remove the handle 1 in a counterclockwise direction and splice the drill rod 2. It should be noted that the direction in which the user operates the handle 1 to rotate must be opposite to the direction of the drill rod 2's spiral installation to avoid the phenomenon of several drill rods 2 falling off during the operation of the handle 1 to advance. After splicing, install the handle 1 on the top of the uppermost drill rod 2. Repeat the above operation to achieve continuous tunneling.

[0062] It should be noted that in order to avoid the excavation drill bit and splicing drill rod 2 from collapsing during the excavation process and being unable to be removed, the support bucket 8 needs to be spliced ​​in time during the excavation. The support bucket 8 is made of plastic, has a light weight, and is easy to operate. Generally, the support bucket 8 is added when excavating 1-3m.

[0063] After the excavation is completed, the support bucket 8 can be left in the soil to facilitate subsequent water intake. Several support buckets 8 can be connected end to end by threads. The inner diameter of the support bucket 8 is slightly larger than the diameter of the column bucket 4. The column bucket 4 is inserted along the drilling direction to ensure that the column bucket 4 can carry out excavation operations inside the support bucket 8.

[0064] It is particularly important to note that when the shallow groundwater level well is excavated to the near-saturation layer (or the shallow groundwater level burial depth), a plastic support bucket 8 should be added in a timely manner to prevent surrounding sand and soil from flowing into the pipeline with the water flow. When the preset depth is reached (generally, after the shallow groundwater appears, excavate about 2 to 3 meters further), the water level well filter head should be promptly lowered into the plastic support bucket 8 at the front end (the filter head can be placed at the front end of the column bucket 4 and sent to the deepest point) to prevent mortar from continuously flowing into the pipeline and to filter the water.

[0065] This device boasts excellent portability, is not limited by complex geographical conditions, and can effectively save research costs, optimize the allocation of research funds, and enhance the value of scientific research. This invention employs a multi-segment casing splicing design, allowing for unlimited depth excavation of shallow groundwater wells, saving time and labor. The excavated shallow groundwater wells can serve as long-term groundwater level observation points or shallow groundwater sampling points, meeting the needs of relevant research work in the field of earth sciences in the region. The bottom of the drill bit in this device is designed to be semi-enclosed (leaving only three rotating cutting edges as sand inlets), effectively reducing the problem of sand sliding out of the drill bit due to water flow.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A digging device for sandy soil environments, characterized by: Includes a rotating handle (1), drill rod (2), column barrel (4), arc-shaped barrel (5), auger bit (7), and support barrel (8); The lower part of the middle end of the rotating handle (1) is detachably provided with several drill rods (2). The lower end of the drill rod (2) located at the bottom is detachably provided with a column barrel (4), and the lower end of the column barrel (4) is provided with an arc-shaped barrel (5). The arc-shaped barrel (5) is equipped with a spiral drill bit (7); The auger drill bit (7) is fixedly mounted on the lower end of the top wall of the column barrel (4) via a fixed shaft; Several support barrels (8) are detachably provided on the outer side of several drill rods (2).

2. A device for excavating sand environments as claimed in claim 1, characterised in that: The top of the drill rod (2) located at the top is detachably connected to the lower part of the middle section of the shank (1) via a first threaded post; The two adjacent drill pipes (2) are detachably connected by a second threaded post (3); The lower end of the drill rod (2) located at the lowest point is detachably connected to the top wall of the column barrel (4) via a third threaded post.

3. The apparatus of claim 1 wherein: The column barrel (4) has a through hole (401) on its side wall, and a glass plate is detachably installed in the through hole (401).

4. The excavation device for sandy environments according to claim 1, characterized in that: The auger bit (7) has three rotating cutting edges (6) on its upper part; The three rotating blades (6) are arranged at equal angles on the side wall of the fixed shaft; The three rotating blades (6) are all inclined on the outer wall of the fixed shaft.

5. The excavation device for sandy environments according to claim 1, characterized in that: A rotating disk (801) is movably provided between two adjacent support barrels (8); The upper and lower ends of the two rotating disks (801) are respectively fixed with fourth threaded posts (802); The two fourth threaded posts (802) located on the same rotating disk (801) are threadedly connected to the two adjacent support barrels (8).

6. The excavation device for sandy environments according to claim 1, characterized in that: Rubber pads are detachably fitted on the outer walls of both sides of the handle (1).

7. The excavation device for sandy environments according to claim 1, characterized in that: Several of the drill pipes have scale lines on their outer walls for recording drilling depth.

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