CN213297944U

CN213297944U - Earth drill

Info

Publication number: CN213297944U
Application number: CN202022279968.6U
Authority: CN
Inventors: 王昕�; 张立志; 张士民; 卞俊威; 刘征; 楚冬梅
Original assignee: Dongfang Yunnong Shandong Technology Development Co ltd; Water Resources Research Institute of Shandong Province
Current assignee: Dongfang Yunnong Shandong Technology Development Co ltd; Water Resources Research Institute of Shandong Province
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-05-28
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a soil sampling drill, including the handle that connects gradually, drilling rod and drill bit, the drill bit is the dutch drill bit, soil sampling drill still includes the connecting piece, the middle part of handle and the top of drilling rod are connected through a connecting piece, be connected through a connecting piece between the bottom of drilling rod and the terminal surface of drill bit, the connecting piece is including connecting the cap, spliced pole and connecting pin, it is the hollow tube to connect the cap, the inner chamber of connecting the cap is six arris holes, the spliced pole is six prisms, six prisms and six arris holes cooperation of pegging graft, the pipe wall of connecting the cap is equipped with two first connecting holes along radial symmetry, the spliced pole transversely runs through there is the second connecting hole, second connecting hole and two first connecting holes all with the connecting pin cooperation of pegging. The utility model provides a current geotome be difficult to dismantle and very easily cause the problem of screw thread damage between each component that exists after long-time the use.

Description

Earth drill

Technical Field

The utility model relates to a soil sampling technical field, in particular to geotome.

Background

Soil sample collection is the basis of soil condition analysis such as soil water content, soil nutrients, soil properties and the like, and has important significance in the fields of water conservancy, agriculture, ecology, environmental protection and the like. The existing soil sampling tools are various, such as shovels, earth drills and the like, and the most common earth drills are provided with drill rods, drill bits and T-shaped handles.

Present geotome adopts the terminal mode of hammering drilling rod more, makes the drill bit get into soil in order to reach the sample purpose, and this kind of mode is higher to the terminal material of drilling rod and structural requirement, need be equipped with multiple instrument when carrying out field sampling, need two people at least to accomplish sample work, in addition, though the drilling rod end is through improving many times, life increases to some extent, but long-term hammering still can cause the terminal deformation of drilling rod to damage, and is difficult to guarantee original life after restoreing. In order to solve the problems, the drill bit can be a Holland drill bit, when soil is taken, the drill bit is vertically placed on the ground surface, the edge pressing rotary handle is pressed downwards with force, the drill bit cuts into the soil in the rotating process, and the soil can smoothly enter the drill bit.

Although the drill bit adopts the Holland drill bit, the defects existing in soil sampling by hammering the tail end of the drill rod can be overcome, but the following problems still exist: the handle, the drill rod and the drill bit of the soil-sampling drill are generally connected in sequence in a welding mode, the soil-sampling drill is inconvenient to carry due to the connection mode, the soil-sampling drill cannot be maintained timely after being damaged, welding points are needed to be welded for maintenance, and in order to solve the problem, the handle, the drill rod and the drill bit of some soil-sampling drills are connected in sequence in a threaded connection mode, the threaded tightening direction of the handle, the drill rod and the drill bit are consistent with the sampling rotation direction, looseness of all parts can not occur during use, but the soil-sampling drill with the structure is screwed more and more among all components after being used for a long time, so that the soil-sampling drill is difficult to disassemble and is easy to cause thread.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming not enough among the prior art, providing a soil sampling bores, the inner chamber of connecting the cap is six arris holes, and the spliced pole is six prisms, and six prisms and six arris holes are pegged graft and are cooperated to it is fixed through the connecting pin, not only prevented the utility model discloses appear screwing up the condition more and more between each component when using, only need separately connecting cap and spliced pole moreover to extract the connecting pin, and can realize the dismantlement between each component, simple high-efficient.

In order to realize the purpose, the utility model discloses a technical scheme is:

the utility model provides a soil sampling drill, is including the handle, drilling rod and the drill bit that connect gradually, the drill bit is the dutch drill bit, soil sampling drill still includes the connecting piece, the middle part of handle and the top of drilling rod are connected through a connecting piece, be connected through a connecting piece between the bottom of drilling rod and the terminal surface of drill bit, the connecting piece is including connecting cap, spliced pole and connecting pin, it is the hollow tube to connect the cap, the inner chamber of connecting the cap is hexagonal hole, the spliced pole is hexagonal prism, hexagonal prism and hexagonal hole grafting cooperation, the pipe wall of connecting the cap is equipped with two first connecting holes along radial symmetry, the spliced pole transversely runs through there is the second connecting hole, second connecting hole and two first connecting holes all with the connecting pin cooperation of pegging graft.

Preferably, the drill bit includes a thin-walled hollow cylinder with a closed end, the closed end of the hollow cylinder is connected with the drill rod, the open end of the hollow cylinder is provided with a drilling tool bit, one side of the hollow cylinder is provided with a first elongated opening, and the other opposite side of the hollow cylinder is provided with two second openings at intervals along the axial direction of the hollow cylinder.

Preferably, the number of the drill rods is at least two, and the at least two drill rods are sequentially connected end to end through connecting pieces.

Preferably, the connecting pin comprises a cylindrical connecting pin body, a circular ring-shaped protrusion is arranged on the side face of one end of the connecting pin body, a limiting counter bore is radially arranged on the side face of the other end, opposite to the connecting pin body, of the connecting pin body, a limiting spring is arranged in the limiting counter bore, one end of the limiting spring is fixedly connected with the bottom of the limiting counter bore, a limiting ball is arranged on the other end of the limiting spring, the limiting ball and the circular ring-shaped protrusion are respectively matched with two opposite sides of the drill rod, a pull ring is arranged on the circular ring-shaped protrusion, and the pull ring is.

Preferably, the earth auger further comprises a limiting part, the limiting part comprises a first semicircular hoop, a second semicircular hoop and a butterfly bolt, the connecting end of the first semicircular hoop is rotatably connected with the connecting end of the second semicircular hoop, a first connecting plate protrudes outwards from the locking end of the first semicircular hoop, a second connecting plate protrudes outwards from the locking end of the second semicircular hoop, the first connecting plate and the second connecting plate are parallel, one end of the second connecting plate, which is far away from the second semicircular hoop, is provided with a notch, the butterfly bolt comprises a stud, a butterfly nut is screwed on the stud, one end of the stud is rotatably connected with the first connecting plate, the other end of the stud is matched with the notch, the butterfly nut is matched with the side surface, which is far away from the first connecting plate, of the second connecting plate, the inner circumferential surface of the first semicircular hoop and the inner circumferential surface of the second semicircular hoop are both matched with the outer side surface of the drill rod, the bottom of first semicircle hoop and the bottom of second semicircle hoop all outwards extend and have the telescopic link, two the telescopic link symmetry sets up.

Preferably, the outer side surface of the drill rod is provided with an annular clamping groove, the inner circumferential surface of the first semicircular hoop and the inner circumferential surface of the second semicircular hoop are provided with arc-shaped clamping protrusions, the clamping protrusions are matched with the clamping groove, and the cross section of each clamping protrusion is semicircular.

The utility model has the advantages that:

1) the inner chamber of connecting the cap is hexagonal hole, and the spliced pole is hexagonal prism, and hexagonal prism and hexagonal hole are pegged graft and are cooperated to it is fixed through the connecting pin, not only prevented the utility model discloses appear when using between each component screw up the condition more, only need in addition to part connecting cap and spliced pole, and extract the connecting pin, and can realize the dismantlement between each component, simple high efficiency.

2) Hollow cylinder's one side is equipped with the first opening of a rectangular shape, and hollow cylinder's relative opposite side is equipped with two second openings along hollow cylinder's axial interval, adopts this kind of structure not only to facilitate the use to get the soil sample and takes out in the drill bit, can effectively prevent moreover that the soil sample that has got from falling in the drill bit by accident.

3) The quantity of drilling rod is at least two, through connecting piece end to end in proper order between two at least drilling rods, makes the utility model discloses an it is adjustable to whole length to be applicable to the sample of the different degree of depth.

4) When the connecting cap and the connecting column are locked through the connecting pin, the connecting pin body only needs to sequentially penetrate through the first connecting hole, the second connecting hole and the other first connecting hole, and the limiting ball and the annular bulge are respectively attached to two opposite sides of the drill rod, so that the locking device is simple and efficient; when the connecting cap and the connecting column are required to be separated, only the pull ring needs to be pulled, and the device is simple and efficient.

5) Through the cooperation of the inner circumferential surface of first semicircle hoop and the inner circumferential surface of second semicircle hoop all with the lateral surface of drilling rod, can install the locating part in the assigned position to when can making telescopic link and ground contact, the drill bit is in the best degree of depth just.

6) The annular clamping groove and the clamping protrusion are arranged, so that the limiting part can be quickly installed at a specified position.

Drawings

FIG. 1 is an exploded view of a soil auger of the present invention;

FIG. 2 is an exploded view of another angle of the earth auger of the present invention;

fig. 3 is a schematic structural view of a limiting member in the earth auger of the present invention;

fig. 4 is a schematic structural view of a connecting pin in the earth drill of the present invention.

In the figure: 1. a handle; 2. an anti-slip sleeve; 3. a connecting cap; 4. a first connection hole; 5. connecting columns; 6. a second connection hole; 7. a connecting pin; 8. a limiting member; 9. a clamping groove; 10. a drill stem; 11. a drill bit; 12. a hollow cylinder; 13. a drilling cutter head; 14. a second opening; 15. a first opening; 16. a first semicircular hoop; 17. a second semi-circular hoop; 18. a first connecting plate; 19. a second connecting plate; 20. a butterfly bolt; 21. a telescopic rod; 22. a clamping bulge; 23. a connecting pin body; 24. a circular bulge; 25. a limiting ball; 26. and (4) a pull ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1-4, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The utility model provides a soil sampling drill.

The utility model provides a soil sampling drill, including the handle 1 that connects gradually, drilling rod 10 and drill bit 11, drill bit 11 is the drill bit of dutch drill, soil sampling drill still includes connecting piece (not marking), the middle part of handle 1 and the top of drilling rod 10 are connected through a connecting piece, be connected through a connecting piece between the bottom of drilling rod 10 and the terminal surface of drill bit 11, the connecting piece is including connecting cap 3, spliced pole 5 and connecting pin 7, connecting cap 3 is the hollow tube, the inner chamber of connecting cap 3 is hexagonal hole, spliced pole 5 is hexagonal prism, hexagonal prism and hexagonal hole are pegged graft the cooperation, the pipe wall of connecting cap 3 is equipped with two first connecting holes 4 along radial symmetry, spliced pole 5 transversely runs through there is second connecting hole 6, second connecting hole 6 and two first connecting holes 4 all peg graft the cooperation with connecting pin 7.

Among the technical scheme that this application provided, the inner chamber of connecting cap 3 is hexagonal hole, and spliced pole 5 is hexagonal prism, and hexagonal prism and hexagonal hole are pegged graft and are cooperated to it is fixed through connecting pin 7, not only prevented the utility model discloses appear between each component when using and screw up the condition more and more, only need in addition to part connecting cap 3 and spliced pole 5, and extract connecting pin 7, and can realize the dismantlement between each component, simple high-efficient.

The drill 11 comprises a thin-walled hollow cylinder 12 with a closed end, the closed end of the hollow cylinder 12 is connected with the drill rod 10, the open end of the hollow cylinder 12 is provided with a drilling tool bit 13, one side of the hollow cylinder 12 is provided with a first elongated opening 15, and the other opposite side of the hollow cylinder 12 is provided with two second openings 14 at intervals along the axial direction of the hollow cylinder 12. One side of hollow cylinder 12 is equipped with a rectangular shape first opening 15, and hollow cylinder 12 opposite side is equipped with two second openings 14 along hollow cylinder 12's axial interval, adopts this kind of structure not only to facilitate the use soil sampling shovel (not shown) to take out soil sample from drill bit 11, can effectively prevent that the soil sample that has got from unexpected the coming off in drill bit 11 moreover.

The number of the drill rods 10 is at least two, and the at least two drill rods 10 are sequentially connected end to end through connecting pieces. Adopt this kind of structure to make the utility model discloses an it is whole adjustable length to be applicable to the sample of the different degree of depth.

The connecting pin 7 comprises a cylindrical connecting pin body 23, a circular ring-shaped bulge 24 is arranged on the side face of one end of the connecting pin body 23, a limiting counter bore (not shown) is radially arranged on the side face of the other end, opposite to the connecting pin body 23, a limiting spring (not shown) is arranged in the limiting counter bore, one end of the limiting spring is fixedly connected with the bottom of the limiting counter bore, a limiting ball 25 is arranged on the other end of the limiting spring, the limiting ball 25 and the circular ring-shaped bulge 24 are respectively matched with two opposite sides of the drill rod 10, a pull ring 26 is arranged on the circular ring-shaped bulge 24, and the pull. When the connecting cap 3 and the connecting column 5 are locked through the connecting pin 7, the connecting pin body 23 only needs to sequentially penetrate through the first connecting hole 4, the second connecting hole 6 and the other first connecting hole 4, and the limiting ball 25 and the annular bulge 24 are respectively attached to two opposite sides of the drill rod 10, so that the locking device is simple and efficient; when the connecting cap 3 and the connecting column 5 need to be separated, only the pull ring 26 needs to be pulled, and the method is simple and efficient.

The earth drill further comprises a limiting piece 8, the limiting piece 8 comprises a first semicircular hoop 16, a second semicircular hoop 17 and a butterfly bolt 20, the connecting end of the first semicircular hoop 16 is rotatably connected with the connecting end of the second semicircular hoop 17, the locking end of the first semicircular hoop 16 protrudes outwards to form a first connecting plate 18, the locking end of the second semicircular hoop 17 protrudes outwards to form a second connecting plate 19, the first connecting plate 18 is parallel to the second connecting plate 19, one end, far away from the second semicircular hoop 17, of the second connecting plate 19 is provided with a notch (not marked), the butterfly bolt 20 comprises a stud (not marked), a butterfly nut (not marked) is screwed on the stud, one end of the stud is rotatably connected with the first connecting plate 18, the other end of the stud is matched with the notch, the butterfly nut is matched with the side face, far away from the first connecting plate 18, of the second connecting plate 19, the inner circumferential face of the first semicircular hoop 16 and the inner circumferential face of the second semicircular hoop 17 are matched with the outer side face of the drill rod, the bottom of first semicircle hoop 16 and the bottom of second semicircle hoop 17 all outwards extend has telescopic link 21, and two telescopic link 21 symmetries set up. The limiting member 8 can be installed at a specified position by matching the inner circumferential surface of the first semicircular hoop 16 and the inner circumferential surface of the second semicircular hoop 17 with the outer side surface of the drill rod 10, so that the drill bit 11 is just at the optimal depth when the telescopic rod 21 is in contact with the ground.

The lateral surface of drilling rod 10 is equipped with annular screens groove 9, and the inner peripheral face of first semicircle hoop 16 and the inner peripheral face of second semicircle hoop 17 all are equipped with curved screens arch 22, screens arch 22 and the cooperation of screens groove 9, and the cross section of screens arch 22 is semi-circular. The arrangement of the annular detent groove 9 and the detent projection 22 enables the limiting member 8 to be quickly mounted at a specified position.

The handle 1 is T font structure, and the relative both ends of handle 1 all are equipped with anti-skidding cover 2.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. The utility model provides a soil sampling drill, is including the handle, drilling rod and the drill bit that connect gradually, the drill bit is the drill bit of dutch brill, a serial communication port, soil sampling drill still includes the connecting piece, the middle part of handle and the top of drilling rod are connected through a connecting piece, be connected through a connecting piece between the bottom of drilling rod and the terminal surface of drill bit, the connecting piece is including connecting cap, spliced pole and connecting pin, the connecting cap is the hollow tube, the inner chamber of connecting cap is hexagonal hole, the spliced pole is hexagonal prism, hexagonal prism and hexagonal hole grafting cooperation, the pipe wall of connecting cap is equipped with two first connecting holes along radial symmetry, the spliced pole transversely runs through there is the second connecting hole, second connecting hole and two first connecting holes all with the connecting pin cooperation of pegging graft.

2. An earth drill according to claim 1, characterized in that the drill head comprises a thin-walled hollow cylinder closed at one end, the closed end of the hollow cylinder being connected to the drill rod, the open end of the hollow cylinder being provided with a drilling head, one side of the hollow cylinder being provided with a first elongated opening, and the opposite side of the hollow cylinder being provided with two second openings at a distance axially of the hollow cylinder.

3. An earth auger according to claim 2, wherein the number of said drill rods is at least two, and at least two of said drill rods are connected end to end in sequence by connectors.

4. The earth drill as claimed in claim 3, wherein the connecting pin comprises a cylindrical connecting pin body, a circular protrusion is arranged on one side of one end of the connecting pin body, a limiting counter bore is radially arranged on the side of the other end of the connecting pin body, a limiting spring is arranged in the limiting counter bore, one end of the limiting spring is fixedly connected with the bottom of the limiting counter bore, a limiting ball is arranged on the other end of the limiting spring, the limiting ball and the circular protrusion are respectively matched with two opposite sides of the drill rod, a pull ring is arranged on the circular protrusion, and the pull ring is rotatably connected with the circular protrusion.

5. The earth auger according to claim 4, characterized in that the earth auger further comprises a limiting member, the limiting member comprises a first semicircular hoop, a second semicircular hoop and a butterfly bolt, the connecting end of the first semicircular hoop is rotatably connected with the connecting end of the second semicircular hoop, the locking end of the first semicircular hoop protrudes outwards to form a first connecting plate, the locking end of the second semicircular hoop protrudes outwards to form a second connecting plate, the first connecting plate and the second connecting plate are parallel, one end of the second connecting plate, which is far away from the second semicircular hoop, is provided with a notch, the butterfly bolt comprises a stud, a butterfly nut is rotatably connected with the stud, one end of the stud is rotatably connected with the first connecting plate, the other end of the stud is matched with the notch, the butterfly nut is matched with the side surface, which is far away from the first connecting plate, of the second connecting plate, the inner circumferential surface of the first semicircular hoop and the inner circumferential surface of the second semicircular hoop are both matched with the outer side surface of the drill rod, the bottom of first semicircle hoop and the bottom of second semicircle hoop all outwards extend and have the telescopic link, two the telescopic link symmetry sets up.

6. The earth auger according to claim 5, wherein the outer side surface of the drill rod is provided with an annular retaining groove, the inner circumferential surface of the first semicircular hoop and the inner circumferential surface of the second semicircular hoop are provided with arc-shaped retaining protrusions, the retaining protrusions and the retaining grooves are matched, and the cross section of each retaining protrusion is semicircular.