CN117888829A - Portable drilling device - Google Patents

Abstract

The present invention provides a portable drilling device comprising: a plurality of support rods connected to the upper mounting plate at intervals for insertion into and fixation to the work floor; a lower mounting plate provided to an inner side of the support bar below the upper mounting plate; the lifting rods sequentially penetrate through the upper mounting plate and the lower mounting plate and can move up and down, the upper mounting plate and the lower mounting plate are respectively provided with through holes for adapting to the lifting rods, and the bottom ends of the lifting rods below the lower mounting plate are fixedly connected to the mounting seats; a swing motor provided to a top surface of the mount, the swing motor being power-connected to a swing support provided to a bottom surface of the mount to horizontally rotate the swing support; the top end of the drill cylinder of the soil sampling drill bit is fixedly connected to the slewing bearing through a connecting block; the soil sampling drill bit comprises a soil inlet and a digging blade matched with the soil inlet; the soil sampling drill bit can horizontally and bidirectionally rotate under the drive of the rotary motor, and can vertically move under the drive of the lifting rod. The drilling device provided by the invention is easy to carry and convenient to use.

Description

Portable drilling device

Technical Field

The invention relates to the field of drilling machinery, in particular to a portable drilling device.

Background

In the field of geographical exploration and the like, a drilling machine is an important working tool. A drill refers to a machine and equipment that leaves a cylindrical hole or bore in a target by means of rotary cutting or rotary extrusion with a tool that is harder and sharper than the target. Drilling machines are also known as drills, hole punches, hole drills, hole penetrating machines, etc. The drilling machine extracts soil or minerals from the ground by drilling the ground.

In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art:

in the geographical exploration, mountain-entering operation is often required due to operation requirements, and mountain-entering of large-scale drilling equipment is difficult, so that the operation is difficult to develop and difficult to implement.

There is therefore a need for a portable drilling device that at least partially solves the above mentioned technical problems.

Disclosure of Invention

The embodiment of the invention provides a portable drilling device which is easy to carry and convenient to use.

The present invention provides a portable drilling device, comprising:

a plurality of support rods connected to the upper mounting plate at intervals for insertion and fixation on the work floor;

a lower mounting plate provided to an inner side of the support bar below the upper mounting plate;

the lifting rods sequentially penetrate through the upper mounting plate and the lower mounting plate and can move up and down, the upper mounting plate and the lower mounting plate are respectively provided with through holes for adapting to the lifting rods, and the bottom ends of the lifting rods below the lower mounting plate are fixedly connected to the mounting seats;

a swing motor provided to a top surface of the mount, the swing motor being power-connected to a swing support provided to a bottom surface of the mount to horizontally rotate the swing support; and

the top end of the drill cylinder of the soil sampling drill bit is fixedly connected to the slewing bearing through a connecting block; the soil sampling drill bit comprises a soil inlet and a digging blade matched with the soil inlet;

the soil sampling drill bit can horizontally and bidirectionally rotate under the drive of the rotary motor, and can vertically move under the drive of the lifting rod.

The drilling device provided by the invention has the advantages of simple structure, small volume, portability and convenience in use.

Optionally, the soil sampling drill bit comprises:

the soil-loading device comprises a drilling barrel with an upper closed lower opening and an inner cavity for accommodating soil, wherein a first soil inlet communicated to the inner cavity is formed in the barrel wall of the drilling barrel, a first digging tooth piece which extends along the circumferential direction and is positioned at the outer side of the first soil inlet is formed in the barrel wall of the drilling barrel, and a soil inlet channel is formed between the first digging tooth piece and the first soil inlet; and

the horizontal cover, cover one end pivotally connected to the section of thick bamboo wall bottom of boring a section of thick bamboo, and can cover and close bore the opening part of section of thick bamboo, the cover sets up the intercommunication to the second of inner chamber advances the soil mouth, the bottom surface of cover sets up the downward sloping and is located the second of the below of second advances the soil mouth excavates the tooth piece, also form into the soil passageway between second excavation tooth piece and the second and advance the soil mouth.

According to the scheme, when the soil sampling drill bit works, the cylinder cover is covered at the opening of the drill cylinder, then the soil sampling drill bit rotates in the hole under the action of the driving device, the first digging tooth plate digs soil at the side face, the excavated soil enters the inner cavity of the drill cylinder through the soil inlet channel formed between the first digging tooth plate and the first soil inlet, meanwhile, the second digging tooth plate digs the soil at the bottom, and the excavated soil also enters the inner cavity of the drill cylinder through the soil inlet channel formed between the second digging tooth plate and the second soil inlet; after the soil in the drilling barrel is full, the soil sampling drill bit is lifted upwards from the hole, and then the barrel cover is opened to enable the soil to fall; the soil sampling drill bit has good use effect and convenient operation.

Optionally, the soil sampling drill bit further comprises a locking mechanism for covering the cylinder cover at the opening of the drill cylinder, the locking mechanism is connected to the drill cylinder, and the locking mechanism comprises:

the rotary handle is positioned above the drilling barrel and is connected to a connecting rod which vertically extends downwards to the inner cavity, and the bottom of the connecting rod is provided with a horizontal jacking block;

a U-shaped cover plate mounted to the top surface of the cylinder cover, wherein a notch for the passage of the tightening block and the connecting rod is arranged at the horizontal part of the cover plate;

when the jacking block is upwards abutted to the bottom surface of the horizontal part of the cover plate, the cylinder cover covers the opening of the drill cylinder, and when the rotary handle drives the jacking block to rotate until the jacking block is not contacted with the bottom surface of the horizontal part of the cover plate, the cylinder cover rotates downwards.

According to the scheme, the cylinder cover is covered at the opening of the drill cylinder and is opened through the locking mechanism, and the structure is simple but the design is ingenious.

Optionally, the first digging tooth comprises an inner tooth plate fixed to the wall of the drill cylinder and an outer tooth plate attached to the outer side surface of the inner tooth plate, wherein the inner tooth plate and the outer tooth plate are both triangular tooth plates, the wide ends of the inner tooth plates are connected to the wall of the drill cylinder, which is circumferentially located at one side of the first soil inlet, and a distance is reserved between the narrow ends of the inner tooth plates and the first soil inlet.

Optionally, the soil sampling drill bit comprises two first soil inlets and two second soil inlets, wherein the two first soil inlets are symmetrically arranged to the wall of the drilling barrel, and the two second soil inlets are symmetrically arranged to the barrel cover. And/or

The first digging tooth and/or the second digging tooth are/is also provided with a bump. Wherein the projections assist in enhancing the ability of the first and second digging tooth to dig into the soil.

Optionally, the cover plate is configured to extend outwards to the outside of the wall of the drill barrel, and the bottom end of the wall of the drill barrel is provided with a bayonet for adapting to the cover plate.

According to the scheme, through the mutual clamping structure of bayonet socket and cover plate for the cover has the restriction effect of bayonet socket when the soil is excavated to the drill bit of taking earth in horizontal rotation, is favorable to strengthening the structural stability when the cover lid closes the opening part of boring a section of thick bamboo.

Optionally, the drilling device further comprises a traction mechanism for driving the earth-boring bit to move up and down, and the traction mechanism comprises:

the winch is arranged on the top surface of the lower mounting plate and is used for driving a traction rope for pulling the soil sampling drill bit to rotate;

a fixed pulley assembly comprising at least one fixed pulley provided to the upper mounting plate and/or the lower mounting plate; and

the movable pulley assembly is arranged on the top surface of the mounting seat and at least comprises a movable pulley;

one end of the traction rope is wound to the winch, and the other end of the traction rope bypasses the fixed pulley assembly and the movable pulley assembly and then is connected to the upper mounting plate or the lower mounting plate.

According to the scheme, the soil taking drill is driven to move up and down by the winch, the fixed pulley assembly and the movable pulley assembly through the traction rope, and the soil taking drill has the effects of being simple in structure and saving labor.

Optionally, the fixed pulley assembly comprises a first fixed pulley arranged on the top surface of the lower mounting plate, a second fixed pulley arranged on one side below the upper mounting plate and positioned right above the first fixed pulley, and a third fixed pulley arranged on the other side below the upper mounting plate; the movable pulley assembly comprises a first movable pulley and a second movable pulley which are arranged on the top surface of the mounting seat side by side, and the first movable pulley and the second movable pulley are distributed on two sides of the first fixed pulley in the horizontal direction;

the winch, the first fixed pulley, the first movable pulley and the second movable pulley rotate around a horizontal shaft arranged along a first direction, the second fixed pulley and the third fixed pulley rotate around a horizontal shaft arranged along a second direction, and the first direction and the second direction are mutually perpendicular;

one end of the traction rope is wound to the winch, and the other end of the traction rope sequentially bypasses the first fixed pulley, the second movable pulley, the third fixed pulley and the first fixed pulley and then is connected to a hanging ring arranged on the upper mounting plate through a hook, and the lower mounting plate is provided with long holes corresponding to the first movable pulley and the second movable pulley respectively.

Optionally, the support rod comprises a telescopic rod and a pointed cone part arranged at the bottom end of the telescopic rod. And/or

The lower portion of the support bar is also rotatably connected to a support plate configured to surround the support bar via a horizontal rotation shaft.

Optionally, the included angle between the second digging tooth and the horizontal plane is 30 ° -45 °. And/or

The middle part of the bottom surface of the cylinder cover is also provided with a triangle insertion block with a big upper part and a small lower part.

According to the scheme, the included angle between the second excavating tooth plate and the horizontal plane is limited to be 30-45 degrees, so that the second excavating tooth plate is beneficial to excavating soil better, and meanwhile, when the soil taking drill bit is lifted upwards from the hole after the soil in the drilling barrel is full, the soil flowing out from the drilling barrel is reduced; the insert block is helpful for the drilling barrel to drill into the soil well downwards, and on the other hand, the insert block plays a role of an acting point when the soil sampling drill bit rotates, so that the soil is excavated.

By utilizing the technical scheme provided by the embodiment of the invention, the beneficial effects can be obtained at least in that:

1. the drilling device provided by the embodiment of the invention has the advantages of simple structure, small volume, portability and convenience in use.

2. According to the drilling device provided by the embodiment of the invention, the soil sampling drill bit is rotationally connected and can cover the cylinder cover of the drilling cylinder, and the first digging tooth piece and the second digging tooth piece for digging soil at different positions are designed, so that soil digging and soil falling are realized, the use effect is good, and the operation is convenient.

3. According to the drilling device provided by the embodiment of the invention, the locking mechanism in the soil sampling drill bit can realize that the cylinder cover is covered at the opening of the drilling cylinder and is opened, so that the structure is simple, and the design is ingenious.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the above-described specific ones, and that the above and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the description serve to explain the invention. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. Corresponding parts in the drawings may be exaggerated, i.e. made larger relative to other parts in an exemplary device actually manufactured according to the present invention, for convenience in showing and describing some parts of the present invention. In the drawings:

FIG. 1 is a schematic view of a drilling apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the drilling apparatus of FIG. 1 at another angle;

FIG. 3 is a schematic view of a portion of a drilling apparatus according to an embodiment of the present invention;

FIG. 4 is another angular schematic view of the structure shown in FIG. 3;

FIG. 5 is a schematic view of a portion of a support rod in a drilling apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic view of a drill bit for removing soil in a drilling device according to an embodiment of the present invention;

FIG. 7 is an overall schematic view of the earth-boring bit of FIG. 6 at another angle; and

fig. 8 is a schematic view illustrating an internal structure of the earth-boring bit in the boring apparatus according to the embodiment of the invention, wherein the wall of the drill cylinder and the first digging tooth are hidden.

Reference numerals illustrate:

200: a drilling device;

210: an upper mounting plate;

211: hanging rings;

220: a support rod;

221: a telescopic rod;

222: a pointed cone;

223: a support plate;

230: a lower mounting plate;

231: a long hole;

240: a lifting rod;

241: perforating;

242: a mounting base;

243: a guide piece;

251: a rotary motor;

252: a slewing bearing;

253: a connecting block;

261: a hoist;

262: a first fixed pulley;

263: a second fixed pulley;

264: a third fixed pulley;

265: a first movable pulley;

266: a second movable pulley;

100: a soil sampling drill bit;

110: drilling a cylinder;

111: the first soil inlet;

112: a bayonet;

120: a first digging tooth;

121: internal tooth plates;

122: an outer gear plate;

130: a cylinder cover;

131: a second soil inlet;

132: an insert block;

140: a second digging tooth;

151: rotating the handle;

152: a connecting rod;

153: a tightening block;

154: a cover plate;

155: a notch;

160: a bump;

171: a first connection plate;

172: a second connecting plate;

173: a pivot;

l1: a first direction;

l2: a second direction.

Detailed Description

The objects and functions of the present invention and methods for achieving these objects and functions will be elucidated by referring to exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; this may be implemented in different forms. The essence of the description is merely to aid one skilled in the relevant art in comprehensively understanding the specific details of the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is intended to include the plural unless the context clearly indicates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for illustrative purposes only and are not limiting.

The present invention provides a portable drilling device 200. The drilling device 200 can be applied to the field of engineering machinery, such as drilling machinery, and changes the existing drilling machinery into complex structure and large size, which is not beneficial to mountain-entering operation.

In order to solve the above problems accordingly, the present invention provides a portable drilling device 200 including a soil sampling drill bit 100, a support rod 220, a lower mounting plate 230, a pull rod 240, and a swing motor 251.

Referring to fig. 1 to 4, in particular, a support rod 220 is connected to the upper mounting plate 210 at intervals for insertion and fixation on the work floor. The number of support bars 220 may be, for example, 3, 4, or other reasonable number. The support bars 220 form a support structure therebetween for supporting and stabilizing other devices. Referring to fig. 5, the support rod 220 includes a variable length telescopic rod 221 and a pointed cone 222 provided at the bottom end of the telescopic rod 221. The insertion into the work floor can be made smoother by the pointed cone 222. When the support rod 220 is inserted and fixed on the work ground, in order to make the support rod 220 smoother, the lower portion of the support rod 220 is also rotatably connected to a stay plate 223 configured to surround the support rod 220 via a horizontal rotation shaft, and the contact area is increased by the stay plate 223 being in contact with the work ground, thereby achieving better horizontal support.

The lower mounting plate 230 is disposed inside the plurality of support rods 220 and below the upper mounting plate 210. The shape of the lower mounting plate 230 may be, without limitation, square, triangular, or other suitable shape.

A lifting rod 240 which is movable up and down sequentially through the upper and lower mounting plates 210 and 230. The upper and lower mounting plates 210, 230 have perforations 241, respectively, that fit into the lift pins 240. In order that the lifting rod 240 does not directly rub against the upper and lower mounting plates 210, 230 during the up and down movement, and that the lifting rod 240 is better moved up and down, a guide piece 243 which is adapted to the lifting rod 240 and vertically extends around the lifting rod 240 is also provided at the penetration hole 241. The guide plate 243 may be a single integral metal collar or a plurality of spaced apart metal plates. The bottom end of the lifting rod 240 below the lower mounting plate 230 is fixedly connected to the mounting seat 242.

The swing motor 251 is provided to the top surface of the mount 242. The pivoting motor 251 is power-connected to the pivoting support 252 provided at the bottom surface of the mount 242 to horizontally rotate the pivoting support 252.

Wherein, the top end of the drill cylinder 110 of the earth-boring bit 100 is fixedly connected to the slewing bearing 252 through a connecting block 253. The earth-boring bit 100 includes an earth-intake and a digging blade mated to the earth-intake. The earth-boring bit 100 can horizontally and bidirectionally rotate under the driving of the rotary motor 251. The earth-boring bit 100 can move up and down under the drive of the lifting rod 240.

In operation, the support rod 220 is erected at a predetermined position as required, the soil sampling drill 100 is lowered into a predetermined hole, then the soil sampling drill is horizontally rotated by the rotary motor 251, after the soil in the drill drum 110 is full, the soil sampling drill 100 is lifted up from the hole, and then the drum cover 130 is opened to drop the soil.

The drilling device 200 according to the invention has the advantages of simple structure, small volume, portability and convenient use.

Overall, earth-boring bit 100 includes a drill barrel 110 and a barrel cover 130. The drill cylinder 110 serves as a container for receiving soil mass (soil) excavated during operation of the earth-boring bit 100, and has a soil inlet and a first excavation tooth 120 for mounting the same. The drum cover 130 is for covering the drill drum 110 and is rotatable up and down to take and drop the soil, and also has a soil inlet and for mounting the second digging tooth 140. That is, the soil inlet in the earth-boring bit 100 includes a first soil inlet 111 and a second soil inlet 131. The digging blade includes a first digging tooth 120 and a second digging tooth 140.

Specifically, as shown in fig. 6 and 7, the drill barrel 110, which closes the lower opening, has an inner cavity for receiving soil. The drill barrel 110 is a generally cylindrical barrel that facilitates rotation within the bore. The drill cylinder 110 is provided with a soil inlet communicated with the inner cavity at the cylinder wall. To facilitate differentiation from the soil inlet on the cap 130, which will be described below, the soil inlet on the wall of the drill barrel 110 is designated as the first soil inlet 111. The shape of the first soil inlet 111 is not limited and may be square, circular, fan-shaped or other shapes. The position of the first soil inlet 111 may not be strictly limited, and preferably the first soil inlet 111 is disposed at the bottom end of the wall of the drill drum 110. The wall of the drill cylinder 110 is provided with a first digging tooth 120 which extends along the circumferential direction and is positioned outside the first soil inlet 111. The first digging tooth 120 is used to dig soil as the drill drum 110 rotates. A soil-feeding passage is formed between the first digging tooth 120 and the first soil inlet 111 so as to bring the excavated soil into the inner cavity of the drill drum 110 through the soil-feeding passage when working.

The first digging tooth 120 is an arc-shaped tooth along the circumferential direction of the drill cylinder, and the shape of the first digging tooth 120 may be, for example, square or trapezoid. Preferably, in order to enhance the soil-excavating ability of the first excavating tooth 120, the first excavating tooth 120 is a triangular tooth having a wide end with a large width connected to the drum wall of the drill drum 110 located at one side of the first soil inlet 111 in the circumferential direction (i.e., at the rear end drum wall in the rotational direction), and a narrow end thereof is spaced apart from the first soil inlet 111. That is, the first digging tooth 120 is not connected to the wall of the drill drum 110 except for the wide end connected to the wall of the drill drum 110, thereby forming an earth-entering passage.

For better soil excavation, the first excavating tooth 120 may include an inner tooth plate 121 fixed to the cylinder wall of the drill cylinder 110 and an outer tooth plate 122 attached to an outer side surface of the inner tooth plate 121. The internal tooth plates 121 and the external tooth plates 122 are triangular tooth plates arranged in the same direction. Wherein the entire first digging tooth 120 is connected to the drill pipe 110 at the pipe wall on the first soil inlet 111 side in the circumferential direction through the wide end (end with larger width) of the inner tooth 121, leaving a distance between the narrow end of the inner tooth 121 and the first soil inlet 111. That is, the inner tooth plates 121 are not connected to the wall of the drill pipe 110 except for the wide end connected to the wall of the drill pipe 110, and the outer tooth plates 122 are fixed to the outer side surface of the inner tooth plates 121 by welding or the like and are not directly connected to the wall of the drill pipe 110. In addition, in order to better excavate soil by the inner tooth plates 121 and the outer tooth plates 122, a bump 160 is further fixed at the narrow end positions of the inner tooth plates 121 and the outer tooth plates 122 to enhance the breaking capacity. The bump 160 may be square or other shapes, so that on one hand, the connection stability between the inner tooth plate 121 and the outer tooth plate 122 at the narrow end position can be enhanced, and on the other hand, the narrow ends of the inner tooth plate 121 and the outer tooth plate 122 can be protected, and the wear degree or deformation probability during operation can be reduced.

A horizontal cap 130 is pivotally connected at one end to the bottom end of the barrel wall of the drill barrel 110 and can be closed over the opening of the drill barrel 110. In this way, the cylinder cover 130 is covered at the opening of the drill cylinder 110 in advance, and a relatively closed inner cavity for accommodating soil is enclosed between the drill cylinder 110 and the cylinder cover 130. After the soil in the drill drum 110 is full, the drum cover 130 is opened based on the downward rotation of the pivoting mechanism after the earth-boring bit 100 is lifted up to a proper position, and the soil is dropped. The pivot mechanism may include a first web 171 secured to the top edge of the cap 130 and a second web 172 secured to the bottom end of the barrel wall of the drill barrel 110. The first link plate 171 and the second link plate 172 are rotatable relative to each other by a horizontal pivot 173. The specific form of the first and second connection plates 171 and 172 may not be limited.

Wherein, the cylinder cover 130 is provided with a second soil inlet 131 communicated with the inner cavity. The bottom surface of the cylinder cover 130 is provided with a second digging tooth 140 which is inclined downwards and is positioned below the second soil inlet 131. The second digging tooth 140 can be square, trapezoidal, or other suitable shape. A soil inlet passage is also formed between the second digging tooth 140 and the second soil inlet 131. One end of the second digging tooth 140 is connected to one side of the bottom surface of the cap 130 in the circumferential direction (i.e., at the bottom surface of the rear cap 130 in the rotary digging direction), and the remaining portion is not in contact with the cap 130. When the soil sampling drill bit rotates to sample soil, the soil respectively enters the soil inlet channel between the first digging tooth 120 and the first soil inlet 111 and the soil inlet channel between the second digging tooth 140 and the second soil inlet 131 in the same direction, namely in the clockwise direction or the anticlockwise direction. In addition, in order for the second digging tooth 140 to dig soil equally better, enhancing the ability to break the soil, the second digging tooth 140 is also provided with a plurality of projections 160 at a bottommost position, such as 3, 4 or other reasonable number, spaced apart. Further, the included angle between the second digging tooth 140 and the horizontal plane is 30 ° -45 °, for example, 30 °, 40 °, or 45 °. This helps both the second digging tooth 140 to better dig the soil and to reduce the outflow of soil from the drill drum 110 as the earth-boring bit 100 is lifted upwardly from the bore after the soil in the drill drum 110 is full. In addition, a triangular insertion block 132 with a large top and a small bottom can be arranged in the middle of the bottom surface of the cylinder cover 130. The insert 132, on the one hand, helps the drill drum 110 to drill down better into the soil and, on the other hand, acts as a point of force as the earth-boring bit 100 rotates, helping to excavate the soil.

The cylinder cover 130 covers the opening of the drill cylinder 110 during operation, then the soil sampling drill bit 100 rotates in the hole under the action of the driving device, the first digging tooth 120 digs soil at the side surface, the excavated soil enters the inner cavity of the drill cylinder 110 through a soil inlet channel formed between the first digging tooth 120 and the first soil inlet 111, meanwhile, the second digging tooth 140 digs the soil at the bottom, and the excavated soil also enters the inner cavity of the drill cylinder 110 through a soil inlet channel formed between the second digging tooth 140 and the second soil inlet 131; after the soil in the drill drum 110 is full, the earth-boring bit 100 is lifted upward from the hole, and then the drum cover 130 is opened to drop the soil.

Referring to fig. 8, in order to provide a simple but yet smart design to achieve the engagement of the cap 130 at the opening of the drill barrel 110 and the opening of the cap 130, the earth-boring bit 100 further includes a locking mechanism. The locking mechanism is connected to the drill barrel 110.

Specifically, the locking mechanism includes a rotating handle 151 and a shroud plate 154. The rotary handle 151 is located above the drill drum 110. The rotating handle 151 is connected to a connecting rod 152 extending vertically down to the lumen. The bottom of the connecting rod 152 is provided with a horizontal tightening block 153. The tightening block 153 may be a sheet-shaped square block. The connecting rod 152 and the tightening block 153 are rotated together by the rotation of the rotating handle 151. The positions of the rotary handle 151 and the connecting rod 152 are preferably disposed on opposite sides of the drill barrel 110 than the pivoting mechanism between the barrel cover 130 and the drill barrel 110.

Cover plate 154 is fixedly mounted to the top surface of cartridge cover 130. The cover plate 154 may be a U-shaped plate with a downward opening or a die plate. The horizontal portion of the shroud plate 154 is provided with notches 155 through which the tightening blocks 153 and the connecting rods 152 pass.

When the cylinder cover 130 is required to be covered at the opening of the drill cylinder 110, the cylinder cover 130 is rotated upwards to be attached to the lower edge of the cylinder wall of the drill cylinder 110, at this time, the tightening block 153 is located in the notch 155 but not in contact with the bottom surface of the horizontal part of the cover plate 154, and then the rotating handle 151 is rotated to a proper position, and during this time, the tightening block 153 is also rotated and finally is abutted upwards to the bottom surface of the horizontal part of the cover plate 154. That is, the tightening block 153 is abutted upwards against the cover plate 154 to lock the cylinder cover 130 fixedly connected with the cover plate 154, so that the cylinder cover 130 is ensured to be stably covered at the opening of the drill cylinder 110 for subsequent operation. When it is desired to open the lid 130, i.e., rotate the rotating handle 151 again to a proper position, the tightening block 153 rotates therewith and eventually comes out of contact with the bottom surface of the horizontal portion of the cover plate 154, and the lid 130 rotates downward under the weight of the soil and the dead weight of the soil.

With continued reference to fig. 7, shroud plate 154 may extend outwardly to the outside of the barrel wall of drill barrel 110. However, the portion of the length extending outside the wall of the drill drum 110 may be as small as possible, or may even be nearly flush with the wall of the drill drum 110. The bottom end of the barrel wall of the drill barrel 110 has a bayonet 112 that mates with a shroud 154.

Therefore, through the mutual clamping structure of the bayonet 112 and the cover plate 154, the cylinder cover 130 is beneficial to strengthening the structural stability of the cylinder cover 130 when the cylinder cover 130 is covered at the opening of the drill cylinder 110 through the limiting function between the cover plate 154 and the bayonet 112 when the soil sampling drill bit 100 is horizontally rotated to excavate soil, so that the cylinder cover 130 is not deviated in the horizontal direction, and the normal operation is ensured.

In order to improve the balance of the earth-boring bit 100 when taking earth, the earth-boring bit 100 includes two first earth inlets 111 and two second earth inlets 131. The two first soil inlets 111 are configured to be symmetrically disposed to the wall of the drill drum 110. The two second soil inlets 131 are configured to be symmetrically disposed to the cover 130.

To achieve the up and down movement of the earth-boring bit 100, the boring device 200 includes a traction mechanism for driving the earth-boring bit 100 up and down. The traction mechanism includes a hoist 261 provided to the top surface of the lower mounting plate 230 for driving rotation of a traction rope (not shown) for pulling the earth-boring bit 100. The winding machine 261 may be a manual type or an electric type.

The traction mechanism further includes a fixed pulley assembly including at least one fixed pulley disposed on the upper mounting plate 210 and/or the lower mounting plate 230, and a movable pulley assembly including at least one movable pulley disposed on the top surface of the mounting block 242. The number and the installation position of the fixed pulleys in the fixed pulley assembly and the number and the installation position of the movable pulleys in the movable pulley assembly are not strictly limited.

One end of the traction rope is wound around the winding machine 261, and the other end of the traction rope is wound around the fixed pulley assembly and the movable pulley assembly and then connected to the upper mounting plate 210 or the lower mounting plate 230. Therefore, the soil sampling drill bit 100 is driven to move up and down by the winch 261, the fixed pulley assembly and the movable pulley assembly through the traction rope, and the soil sampling drill bit has the effects of simple structure and labor saving.

With continued reference to fig. 2, 3 and 4, in order to provide a useful traction mechanism, the fixed pulley assembly includes a first fixed pulley 262 disposed on the top surface of the lower mounting plate 230, a second fixed pulley 263 disposed on one side below the upper mounting plate 210 and directly above the first fixed pulley 262, and a third fixed pulley 264 disposed on the other side below the upper mounting plate 210. The traveling block assembly includes a first traveling block 265 and a second traveling block 266 mounted side-by-side on the top surface of the mount 242. At the angle shown in fig. 2, the movable pulley on the left side is the first movable pulley 265 and the movable pulley on the opposite right side is the second movable pulley 266. Wherein the first movable pulley 265 and the second movable pulley 266 are distributed at both sides of the first fixed pulley 262 in the horizontal direction.

Wherein the winding machine 261, the first fixed pulley 262, the second fixed pulley 263 and the third fixed pulley 264 are substantially distributed on the same straight line. The winding machine 261, the first fixed sheave 262, the first movable sheave 265, and the second movable sheave 266 rotate about a horizontal axis arranged in the first direction L1. The second fixed pulley 263 and the third fixed pulley 264 rotate about a horizontal axis arranged in the second direction L2. The first direction L1 and the second direction L2 are perpendicular to each other.

In addition, the first movable pulley 265 and the second movable pulley 266 are symmetrically distributed on the top surfaces of the mounting seat 242, which are positioned on two sides of the lifting rod, namely, the distances between the centers of the first movable pulley 265 and the second movable pulley 266 and the axis of the lifting rod are equal, so that when the earth-boring bit is lifted or lowered after bypassing the first movable pulley 265 and the second movable pulley 266 through the traction rope, the moment or torque applied on two sides is equal, on one hand, the earth-boring bit can be kept to be lifted horizontally and stably, on the other hand, the lifting rod can also be moved up and down along the standard vertical direction without applying lateral force to the guide plate 243, the upper mounting plate 210 and the lower mounting plate 230, and the movement is smoother.

Wherein one end of the traction rope is wound around the winding machine 261, and the other end is connected to the hanging ring 211 provided at the upper mounting plate 210 via a hanger (not shown) after passing around the first fixed pulley 262, the second fixed pulley 263, the second movable pulley 266, the third fixed pulley 264 and the first fixed pulley 262 in order. The lower mounting plate 230 has long holes 231 corresponding to the first movable pulley 265 and the second movable pulley 266, respectively. The long hole 231 is located directly above the corresponding first movable pulley 265 and second movable pulley 266, respectively, and the length of the long hole 231 is at least greater than the diameters of the first movable pulley 265 and the second movable pulley 266.

In order to ensure that the traction rope extends almost vertically or horizontally at the corresponding position throughout the winding process, the diameter of the third fixed sheave 264 needs to be larger than that of the second fixed sheave 263. The second fixed pulley 263 and the third fixed pulley 264 are distributed on both sides of the lifting rod. The winding machine 261, the first fixed sheave 262 and the second fixed sheave 263 are located on the same side of the tie rod.

Due to the special arrangement at the above-mentioned positions, the hauling ropes are extended almost vertically or horizontally at the respective positions in space, improving the hauling efficiency, so that the earth-boring bit 100 can be pulled up and down with a smaller hauling force acting on the winding machine 261.

In summary, the drilling device 200 according to the present invention has the advantages of simple structure, small volume, portability and convenient use; secondly, the earth-boring bit 100 is designed with the cap 130 rotatably connected and covered to the drill barrel 110, and the first digging tooth 120 and the second digging tooth 140 for digging soil at different positions are designed to realize soil digging and soil falling, so that the earth-boring bit has good use effect and convenient operation. Meanwhile, the locking mechanism in the soil sampling drill bit 100 realizes that the cylinder cover 130 is covered at the opening of the drill cylinder 110 and the cylinder cover 130 is opened, so that the soil sampling drill bit is simple in structure and ingenious in design. In addition, by designing the mutual engagement structure of the bayonet 112 and the cover plate 154, the structural stability of the cylinder cover 130 when being covered at the opening of the drill cylinder 110 is enhanced, and the cylinder cover 130 is not deviated when working in the horizontal direction.

Other embodiments of the invention will be apparent to and understood by those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims (10)

1. A portable drilling device, the drilling device comprising:

a plurality of support rods connected to the upper mounting plate at intervals for insertion and fixation on the work floor;

a lower mounting plate provided to an inner side of the support bar below the upper mounting plate;

the lifting rods sequentially penetrate through the upper mounting plate and the lower mounting plate and can move up and down, the upper mounting plate and the lower mounting plate are respectively provided with through holes for adapting to the lifting rods, and the bottom ends of the lifting rods below the lower mounting plate are fixedly connected to the mounting seats;

a swing motor provided to a top surface of the mount, the swing motor being power-connected to a swing support provided to a bottom surface of the mount to horizontally rotate the swing support; and

the top end of the drill cylinder of the soil sampling drill bit is fixedly connected to the slewing bearing through a connecting block; the soil sampling drill bit comprises a soil inlet and a digging blade matched with the soil inlet;

the soil sampling drill bit can horizontally and bidirectionally rotate under the drive of the rotary motor, and can vertically move under the drive of the lifting rod.

2. The drilling apparatus of claim 1, wherein the earth-boring bit comprises:

the soil-loading device comprises a drilling barrel with an upper closed lower opening and an inner cavity for accommodating soil, wherein a first soil inlet communicated to the inner cavity is formed in the barrel wall of the drilling barrel, a first digging tooth piece which extends along the circumferential direction and is positioned at the outer side of the first soil inlet is formed in the barrel wall of the drilling barrel, and a soil inlet channel is formed between the first digging tooth piece and the first soil inlet; and

the horizontal cover, cover one end pivotally connected to the section of thick bamboo wall bottom of boring a section of thick bamboo, and can cover and close bore the opening part of section of thick bamboo, the cover sets up the intercommunication to the second of inner chamber advances the soil mouth, the bottom surface of cover sets up the downward sloping and is located the second of the below of second advances the soil mouth excavates the tooth piece, also form into the soil passageway between second excavation tooth piece and the second and advance the soil mouth.

3. The drilling apparatus of claim 2, further comprising a locking mechanism for engaging the barrel cover at the opening of the drill barrel, the locking mechanism being connected to the drill barrel, the locking mechanism comprising:

the rotary handle is positioned above the drilling barrel and is connected to a connecting rod which vertically extends downwards to the inner cavity, and the bottom of the connecting rod is provided with a horizontal jacking block;

a U-shaped cover plate mounted to the top surface of the cylinder cover, wherein a notch for the passage of the tightening block and the connecting rod is arranged at the horizontal part of the cover plate;

when the jacking block is upwards abutted to the bottom surface of the horizontal part of the cover plate, the cylinder cover covers the opening of the drill cylinder, and when the rotary handle drives the jacking block to rotate until the jacking block is not contacted with the bottom surface of the horizontal part of the cover plate, the cylinder cover rotates downwards.

4. A drilling apparatus according to claim 3, wherein the cover plate is configured to extend outwardly to the outside of the wall of the drill barrel, the bottom end of the wall of the drill barrel having a bayonet fitting the cover plate; and/or

The first digging tooth and/or the second digging tooth are/is also provided with a bump.

5. The drilling apparatus of claim 1, further comprising a traction mechanism for driving the earth-boring bit up and down, the traction mechanism comprising:

the winch is arranged on the top surface of the lower mounting plate and is used for driving a traction rope for pulling the soil sampling drill bit to rotate;

a fixed pulley assembly comprising at least one fixed pulley provided to the upper mounting plate and/or the lower mounting plate; and

the movable pulley assembly is arranged on the top surface of the mounting seat and at least comprises a movable pulley;

one end of the traction rope is wound to the winch, and the other end of the traction rope bypasses the fixed pulley assembly and the movable pulley assembly and then is connected to the upper mounting plate or the lower mounting plate.

6. The drilling apparatus of claim 5, wherein the fixed pulley assembly comprises a first fixed pulley disposed on a top surface of the lower mounting plate, a second fixed pulley disposed on one side below the upper mounting plate and directly above the first fixed pulley, and a third fixed pulley disposed on the other side below the upper mounting plate; the movable pulley assembly comprises a first movable pulley and a second movable pulley which are arranged on the top surface of the mounting seat side by side, and the first movable pulley and the second movable pulley are distributed on two sides of the first fixed pulley in the horizontal direction;

the winch, the first fixed pulley, the first movable pulley and the second movable pulley rotate around a horizontal shaft arranged along a first direction, the second fixed pulley and the third fixed pulley rotate around a horizontal shaft arranged along a second direction, and the first direction and the second direction are mutually perpendicular;

one end of the traction rope is wound to the winch, and the other end of the traction rope sequentially bypasses the first fixed pulley, the second movable pulley, the third fixed pulley and the first fixed pulley and then is connected to a hanging ring arranged on the upper mounting plate through a hook, and the lower mounting plate is provided with long holes corresponding to the first movable pulley and the second movable pulley respectively.

7. The drilling apparatus according to claim 2, wherein the first digging tooth includes an inner tooth plate fixed to a wall of the drill pipe and an outer tooth plate attached to an outer side surface of the inner tooth plate, the inner tooth plate and the outer tooth plate each being configured as a triangular tooth plate, a wide end of the inner tooth plate being connected to the drill pipe at a wall of the drill pipe located circumferentially on the first earth inlet side, a distance being left between a narrow end of the inner tooth plate and the first earth inlet.

8. The drilling apparatus of claim 1, wherein the support rod comprises a telescoping rod and a pointed cone disposed at a bottom end of the telescoping rod.

9. The drilling apparatus of claim 8, wherein the lower portion of the support rod is further rotatably connected to a support plate configured to surround the support rod via a horizontal rotation shaft.

10. Drilling apparatus according to claim 2, wherein the angle between the second digging tooth and the horizontal is 30 ° -45 °; and/or

The middle part of the bottom surface of the cylinder cover is also provided with a triangle insertion block with a big upper part and a small lower part.