Soil sampler convenient for collecting frozen soil

Abstract

The utility model provides a soil sampler convenient for collecting frozen soil, and belongs to the technical field of frozen soil extraction. The problem that a drill bit of an existing frozen soil collecting device is prone to being damaged due to the low environment temperature and the hard ground is solved. The device comprises the U-shaped support, the transverse moving assembly, the limiting plate, the telescopic rod, the drill bit assembly and the drilling assembly, the transverse moving assembly plays a role in transversely moving the drill bit assembly and the drilling assembly, the drilling assembly is used for drilling a plurality of holes in a whole piece of frozen soil, the drill bit assembly is used for taking soil from the drilled frozen soil, and when the frozen soil is collected, the drill bit assembly is used for collecting soil. The frozen soil is drilled in advance, the whole frozen soil structure is damaged in advance, and drilling and collection of a drill bit are facilitated; and the inserting drill rod is firstly used for drilling, and the inserting drill rod can be replaced even if being damaged, so that the drill bit is more convenient to replace, and the maintenance cost is much lower.

Description

Technical Field

[0001] The utility model relates to the technical field of frozen soil collection, and particularly relates to an earth sampler for facilitating frozen soil collection. Background Art

[0002] Frozen soil refers to various rocks and soils below zero degrees Celsius and containing ice. Generally, it can be divided into short-term frozen soil, seasonal frozen soil, and permafrost. Frozen soil has rheological properties, and its long-term strength is much lower than its instantaneous strength characteristics. If the soil layer dissipates more heat than it absorbs each year, the freezing depth is greater than the thawing depth, and the permafrost gradually thickens, which is called developing permafrost and is in a relatively stable state. If the soil layer absorbs more heat than it dissipates each year, the ground temperature rises year by year, and the permafrost layer gradually thaws and thins until it disappears, being in an unstable state, which is called degraded permafrost.

[0003] When the existing frozen soil collection device collects frozen soil, due to the low temperature of the environment where the frozen soil is located, the drill bit is easily damaged because the ground is hard during the collection process, affecting the normal collection of frozen soil. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is:

[0005] To solve the problem that the existing frozen soil collection device is prone to damage the drill bit due to the low temperature of the environment where it is located and the hard ground.

[0006] The technical solution adopted by the utility model to solve the above technical problem:

[0007] The utility model provides an earth sampler for facilitating frozen soil collection, which includes a U-shaped bracket for placing on the ground surface, and also includes a transverse movement assembly, a limiting plate, a telescopic rod, a drill bit assembly, and a drilling assembly.

[0008] The transverse movement assembly includes a lead screw and a lead screw driving motor. One end of the lead screw is connected to the output end of the lead screw driving motor arranged on the inner wall of one side of the U-shaped bracket, and the other end of the lead screw is rotatably connected to the inner wall of the other side of the U-shaped bracket. A slider is connected to the lead screw through a thread, and the slider is connected to the limiting plate, and is used to drive the lead screw to rotate through the lead screw driving motor, thereby driving the slider and the limiting plate connected to the slider to move horizontally.

[0009] The limiting plate is provided with a drill bit installation opening and a drilling installation opening. The drilling installation opening is used for installing the drilling assembly, the drilling assembly is used for drilling multiple holes in the whole frozen soil, the drill bit installation opening is used for installing the drill bit assembly, and the drill bit assembly is used for taking soil from the frozen soil after drilling.

[0010] Further, the drilling assembly includes a drilling drive motor, a drilling mounting plate, a drill rod rotating shaft, a rotating shaft gear, a drill rod, and a drill rod gear. The shape of the drilling mounting plate matches the shape of the drilling mounting opening. The bottom of the upper wall of the U-shaped bracket is connected to the drilling mounting plate through a telescopic rod. The output end of the drilling drive motor is connected to the drill rod rotating shaft inside the drilling mounting plate. A rotating shaft gear is sleeved on the drill rod rotating shaft. A number of drill rods are circumferentially arranged on the outer periphery of the rotating shaft gear. One end of the drill rod is rotatably connected to the upper inner wall above the drilling mounting plate, and the other end of the drill rod extends out of the drilling mounting plate. The rotating shaft gear is meshed and connected with the drill rod gear sleeved on each drill rod.

[0011] Further, the drill bit assembly includes a drill bit mounting plate, a drill bit drive motor, a drill bit drive rotating shaft, a drill bit connecting rotating shaft, rotating blades, and a drill bit sleeve. The shape of the drill bit mounting plate matches the shape of the drill bit mounting opening. The bottom of the upper wall of the U-shaped bracket is connected to the drill bit mounting plate through a telescopic rod. A drill bit sleeve with an open bottom end is provided below the drill bit mounting plate. A drill bit drive motor is provided on the drill bit mounting plate. The output end of the drill bit drive motor is connected to the drill bit drive rotating shaft inside the drill bit mounting plate. The drill bit drive rotating shaft penetrates through the drill bit mounting plate and is connected to the drill bit connecting rotating shaft inside the drill bit sleeve. Rotating blades are provided on the outer wall of the drill bit connecting rotating shaft.

[0012] Further, a limiting rod is further included. Two ends of the limiting rod are respectively fixedly connected to two side walls of the U-shaped bracket. The limiting plate is sleeved on the limiting rod and can move along the extending direction of the limiting rod.

[0013] Further, a slide rail is further included. The slide rail is provided at the bottom of the upper end of the U-shaped bracket. The telescopic rod is clamped on the slide rail and can slide along the extending direction of the slide rail.

[0014] Further, the length of the drill rod extending out of the drilling mounting plate is the same as the length of the drill bit sleeve.

[0015] Further, the shape surrounded by a number of drill rods matches the shape of the drill bit sleeve.

[0016] Further, a number of drill bit saw teeth are provided at the bottom of the drill bit connecting rotating shaft.

[0017] Further, spiral grooves are provided on the outer walls of both the drill rod and the drill bit sleeve.

[0018] Further, two or more telescopic rods are provided on both the drilling mounting plate and the drill bit mounting plate.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] The utility model relates to a soil sampler for facilitating frozen soil collection, which comprises a U-shaped bracket, a transverse movement assembly, a limiting plate, a telescopic rod, a drill bit assembly and a drilling assembly. The transverse movement assembly plays a role in laterally moving the drill bit assembly and the drilling assembly. The drilling assembly is used for drilling multiple holes in a whole piece of frozen soil, and the drill bit assembly is used for taking soil from the frozen soil after drilling. When collecting frozen soil, by drilling the frozen soil in advance, the whole structure of the frozen soil is damaged in advance, which facilitates the drilling and collection of the drill bit. Moreover, a drift is first used for drilling. Even if it is damaged, it can be replaced, which is more convenient than replacing the drill bit, and the maintenance cost is much lower. Description of the Drawings

[0021] Figure 1 is a perspective view of a soil sampler for facilitating frozen soil collection in an embodiment of the utility model;

[0022] Figure 2 is a front view of a soil sampler for facilitating frozen soil collection in an embodiment of the utility model;

[0023] Figure 3 is a perspective view of the limiting plate, the slider and the limiting rod in an embodiment of the utility model;

[0024] Figure 4 is a sectional view of the drilling assembly in an embodiment of the utility model;

[0025] Figure 5 is a sectional view of the drill bit assembly in an embodiment of the utility model.

[0026] Description of the Reference Numerals:

[0027] 1, U-shaped bracket; 2, lead screw drive motor; 3, lead screw; 4, limiting plate; 5, limiting rod; 6, slider; 7, drift; 8, drill bit sleeve; 9, drill bit mounting plate; 10, drill bit drive motor; 11, drilling mounting plate; 12, drilling drive motor; 13, telescopic rod; 14, slide rail; 15, drift rotating shaft; 16, rotating shaft gear; 17, drift gear; 18, drill bit drive rotating shaft; 19, drill bit connecting rotating shaft; 20, rotating blade; 21, drill bit serration; 401, drill bit mounting opening; 402, drilling mounting opening. Detailed Embodiment

[0028] In the description of the present utility model, it should be noted that the term nouns such as "upper", "lower", "front", "rear", "left", "right", etc. indicating directions in each embodiment are only used to simplify the description of the positional relationship based on the drawings of the specification, and do not represent that the indicated elements and devices, etc. must be operated according to the specific directions and limited operations, methods, and structures described in the specification. Such direction nouns do not constitute a limitation to the present utility model.

[0029] To make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings.

[0030] Specific Embodiment 1: As shown in Figures 1 to 5 The present utility model provides a soil sampler for facilitating frozen soil collection, including a U-shaped bracket 1 for placing on the ground surface. During use, the opening of the U-shaped bracket 1 faces the ground. It also includes a transverse movement component, a limiting plate 4, a telescopic rod 13, a drill bit assembly, and a drilling assembly.

[0031] The transverse movement component includes a lead screw 3 and a lead screw driving motor 2. One end of the lead screw 3 is connected to the output end of the lead screw driving motor 2 provided on the inner wall of one side of the U-shaped bracket 1, and the other end of the lead screw 3 is rotatably connected to the inner wall of the other side of the U-shaped bracket 1. A slider 6 is sleeved on the lead screw 3 through a thread, and the slider 6 is connected to the limiting plate 4, which is used to drive the lead screw 3 to rotate through the lead screw driving motor 2, thereby driving the slider 6 and the limiting plate 4 connected to the slider 6 to move horizontally. The lead screw driving motor 2 is a forward and reverse motor, which can realize the forward and reverse rotation of the lead screw 3, and thus realize the left and right horizontal movement of the slider 6 and the limiting plate 4.

[0032] The limiting plate 4 is provided with a drill bit installation opening 401 and a drilling installation opening 402. The drill bit installation opening 401 is used for installing the drill bit assembly, and the drilling installation opening 402 is used for installing the drilling assembly.

[0033] The drilling assembly includes a drilling driving motor 12, a drilling installation plate 11, an inserting rod rotating shaft 15, a rotating shaft gear 16, an inserting rod 7, and an inserting rod gear 17. The shape of the drilling installation plate 11 matches the shape of the drilling installation opening 402. The bottom of the upper wall of the U-shaped bracket 1 is connected to the drilling installation plate 11 through a telescopic rod 13. The output end of the drilling driving motor 12 is connected to the inserting rod rotating shaft 15 inside the drilling installation plate 11. A rotating shaft gear 16 is sleeved on the inserting rod rotating shaft 15. A plurality of inserting rods 7 are circumferentially arranged on the outer periphery of the rotating shaft gear 16. One end of the inserting rod 7 is rotatably connected to the upper inner wall above the drilling installation plate 11, and the other end of the inserting rod 7 extends out of the drilling installation plate 11. The rotating shaft gear 16 is meshed and connected with the inserting rod gear 17 sleeved on each inserting rod 7. It is used to drive the inserting rod rotating shaft 15 to rotate through the drilling driving motor 12, drive the rotating shaft gear 16 to rotate, and then drive a plurality of inserting rods 7 outside the rotating shaft gear 16 to rotate simultaneously.

[0034] The drill bit assembly includes a drill bit mounting plate 9, a drill bit driving motor 10, a drill bit driving rotating shaft 18, a drill bit connecting rotating shaft 19, rotating blades 20 and a drill bit sleeve 8. The shape of the drill bit mounting plate 9 matches the shape of the drill bit mounting opening 401. The bottom of the upper wall of the U-shaped bracket 1 is connected to the drill bit mounting plate 9 through a telescopic rod 13. A drill bit sleeve 8 is provided below the drill bit mounting plate 9, and a drill bit driving motor 10 is provided on the drill bit mounting plate 9. The output end of the drill bit driving motor 10 is connected to the drill bit driving rotating shaft 18. The drill bit driving rotating shaft 18 passes through the drill bit mounting plate 9 and is connected to the drill bit connecting rotating shaft 19 inside the drill bit sleeve 8. Rotating blades 20 are provided on the outer wall of the drill bit connecting rotating shaft 19; it is used to drive the drill bit driving rotating shaft 18 and the drill bit connecting rotating shaft 19 to rotate through the drill bit driving motor 10, and collect frozen soil through the rotating blades 20.

[0035] It further includes a limiting rod 5. The two ends of the limiting rod 5 are respectively fixedly connected to the two side walls of the U-shaped bracket 1. The limiting plate 4 is sleeved on the limiting rod 5 and can move along the extension direction of the limiting rod 5, which plays a role in supporting the limiting plate 4 without affecting the lateral movement of the limiting plate 4.

[0036] It further includes a slide rail 14. The slide rail 14 is arranged at the bottom of the upper end of the U-shaped bracket 1. The telescopic rod 13 is clamped on the slide rail 14 and can slide along the extension direction of the slide rail 14, which plays a role in not affecting the lateral movement of the limiting plate 4, the drilling assembly and the drill bit assembly.

[0037] Two or more telescopic rods 13 are provided on both the drilling mounting plate 11 and the drill bit mounting plate 9. The telescopic rod 13 can be a hydraulic telescopic rod 13.

[0038] The length of the drill rod 7 extending out of the drilling mounting plate 11 is the same as the length of the drill bit sleeve 8. The shape surrounded by the drill rod 7 matches the shape of the drill bit sleeve 8, which is used to facilitate the rotation and advancement of the drill bit sleeve 8 and the drill bit after the drilling assembly performs a circular opening.

[0039] Several drill bit sawteeth 21 are provided at the bottom of the drill bit connecting rotating shaft 19, which plays a role in assisting drilling.

[0040] Spiral grooves are provided on both the outer wall of the drill rod 7 and the outer wall of the drill bit sleeve 8.

[0041] Working principle:

[0042] Move the soil sampler to the soil sampling area, align the drilling assembly with the soil sampling position, and at the same time start the telescopic rod 13 and the drilling driving motor 12. While the drilling assembly moves downward, drive the drill rod rotating shaft 15 to rotate through the drilling driving motor 12, drive the rotating shaft gear 16 to rotate, and then drive each drill rod 7 to rotate to realize drilling;

[0043] After the drilling is completed, stop the drilling drive motor 12, move the drilling assembly upward through the telescopic rod 13 until the drilling mounting plate 11 moves to the position of the drilling mounting opening 402 on the limit plate 4, drive the lead screw drive motor 2 to move the limit plate 4 until the drill bit assembly is at the soil-taking position after drilling, stop driving the lead screw drive motor 2, turn on the telescopic rod 13 and the drill bit drive motor 10. During the downward movement of the drill bit assembly, the drill bit sleeve 8 and the rotating blades 20 collect the frozen soil.

[0044] It should be noted that if the soil in the frozen soil area is too hard, the drilling assembly can be used multiple times to drill the frozen soil in a certain area multiple times, turning the whole piece of frozen soil into fragmented frozen soil, and then collecting the frozen soil. After the frozen soil collection is completed, the drill bit connecting rotating shaft 19 can be rotated in the reverse direction to discharge the frozen soil.

[0045] If one or more of the dowels 7 are damaged, they can be replaced. Their price is relatively lower than that of the drill bit, and even if they are damaged and replaced, it is more cost-saving.

[0046] Although the present utility model is disclosed as above, the protection scope of the present utility model is not limited thereto. Those skilled in the art of the present utility model can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present utility model.

Claims

1. A soil sampler for collecting frozen soil, characterized in that: It comprises a U-shaped bracket (1) for being placed on the ground, and also comprises a lateral movement component, a limit plate (4), a telescopic rod (13), a drill bit component and a drilling component. The transverse movement assembly comprises a screw rod (3) and a screw rod driving motor (2), one end of the screw rod (3) is connected to the output end of the screw rod driving motor (2) arranged on the inner wall of one side of the U-shaped bracket (1), and the other end of the screw rod (3) is rotatably connected to the inner wall of the other side of the U-shaped bracket (1), and a slider (6) is connected to the screw rod (3) through a thread, and the slider (6) is connected to the limit plate (4) and is used to drive the screw rod (3) to rotate through the screw rod driving motor (2), thereby driving the slider (6) and the limit plate (4) connected to the slider (6) to move horizontally; The limit plate (4) is provided with a drill bit installation opening (401) and a drilling hole installation opening (402); the drilling hole installation opening (402) is used to install a drilling assembly, and the drilling assembly is used to drill a plurality of holes in a whole piece of frozen soil; the drill bit installation opening (401) is used to install a drill bit assembly, and the drill bit assembly is used to extract soil from the frozen soil after drilling.

2. A soil sampler for facilitating frozen soil collection according to claim 1, characterized in that: The drilling assembly comprises a drilling drive motor (12), a drilling mounting plate (11), a drill bit rotating shaft (15), a rotating shaft gear (16), a drill bit (7) and a drill bit gear (17). The shape of the drilling mounting plate (11) matches the shape of the drilling mounting opening (402). The bottom of the upper wall of the U-shaped bracket (1) is connected to the drilling mounting plate (11) through a telescopic rod (13). The output end of the drilling drive motor (12) is connected to the drill bit rotating shaft (15) in the drilling mounting plate (11). The drill bit rotating shaft (15) is sleeved with a rotating shaft gear (16). A plurality of drill bits (7) are arranged on the outer circumference of the rotating shaft gear (16). One end of the drill bit (7) is rotatably connected to the upper inner wall of the drilling mounting plate (11). The other end of the drill bit (7) extends out of the drilling mounting plate (11). The rotating shaft gear (16) is meshedly connected with the drill bit gear (17) sleeved on each drill bit (7).

3. A soil sampler for facilitating frozen soil collection according to claim 2, characterized in that: The drill assembly comprises a drill mounting plate (9), a drill driving motor (10), a drill driving shaft (18), a drill connecting shaft (19), a rotating blade (20) and a drill sleeve (8); the shape of the drill mounting plate (9) matches the shape of the drill mounting opening (401); the bottom of the upper wall of the U-shaped bracket (1) is connected to the drill mounting plate (9) through a telescopic rod (13); a drill sleeve (8) with an opening at the lower end is provided under the drill mounting plate (9); a drill driving motor (10) is provided on the drill mounting plate (9); an output end of the drill driving motor (10) is connected to the drill driving shaft (18) in the drill mounting plate (9); the drill driving shaft (18) penetrates the drill mounting plate (9) and is connected to the drill connecting shaft (19) in the drill sleeve (8); and a rotating blade (20) is provided on the outer wall of the drill connecting shaft (19).

4. The soil sampler for facilitating frozen soil collection according to claim 3, characterized in that: It also comprises a limiting rod (5), the two ends of which are respectively fixedly connected to the two side walls of the U-shaped bracket (1); the limiting plate (4) is sleeved on the limiting rod (5) and can move along the extension direction of the limiting rod (5).

5. The soil sampler for facilitating frozen soil collection according to claim 4, characterized in that: It also comprises a slide rail (14), wherein the slide rail (14) is arranged at the bottom of the upper end of the U-shaped bracket (1), and the telescopic rod (13) is clamped on the slide rail (14) and can slide along the extension direction of the slide rail (14).

6. The soil sampler for facilitating frozen soil collection according to claim 5, characterized in that: The length of the insert drill (7) extending out of the drilling mounting plate (11) is the same as the length of the drill sleeve (8).

7. The soil sampler for facilitating frozen soil collection according to claim 6, characterized in that: The shapes of the plurality of insert drills (7) are matched with the shape of the drill sleeve (8).

8. The soil sampler for facilitating frozen soil collection according to claim 7, characterized in that: A plurality of drill teeth (21) are provided at the bottom of the drill connecting shaft (19).

9. The soil sampler for facilitating frozen soil collection according to claim 8, characterized in that: The outer wall of the drill bit (7) and the outer wall of the drill sleeve (8) are both provided with spiral grooves.

10. The soil sampler for facilitating frozen soil collection according to claim 9, characterized in that: The drilling installation plate (11) and the drill bit installation plate (9) are both provided with two or more telescopic rods (13).

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