Down-the-hole drilling splash-proof drill bit assembly

Abstract

The utility model discloses a down-the-hole drilling splash-proof drill bit assembly, and relates to the field of down-the-hole drilling, the down-the-hole drilling splash-proof drill bit assembly comprises a drill rod, a drill bit, a connecting plate, a splash-proof assembly, a locking assembly and a rotating drum, a connecting rope is taken back to drive a sleeve to move, the sleeve drives one end of a second rotating plate to tilt up through a connecting shaft, and when the second rotating plate tilts up, the splash-proof assembly is locked. A first rotating plate is connected with second rotating plates in an abutting mode through abutting blocks, so that the first rotating plate is warped, gaps between every two adjacent second rotating plates are covered through the first rotating plate, and finally it is avoided that splashing water affects construction, when a rotating cylinder is rotated, a locking rod is rotated, so that the bottom end of the locking rod is disengaged from the outer surface of a ratchet wheel, and construction is completed. When the locking rod is pressed, the abutting rod drives the spring to contract through the connecting disc, and after the locking rod unlocks the ratchet wheel, the abutting rod drives the abutting rod to abut against the locking rod under the action of the spring and the connecting disc, so that the outer surface of the ratchet wheel is clamped through the locking rod, the ratchet wheel is locked, and the second rotating plate is prevented from falling.

Description

Technical Field

[0001] This utility model relates to the field of down-the-hole drilling technology, and in particular to a splash-proof drill bit assembly for down-the-hole drilling. Background Technology

[0002] Down-the-hole drilling is a drilling technology mainly used in geological exploration, mining, tunnel construction and other fields. It uses down-the-hole drilling rigs to drill holes underground in order to collect rock samples, investigate geological structures, explore mineral resources or prepare blast holes for blasting operations. Down-the-hole drilling technology has the characteristics of fast drilling speed, deep drilling, and strong adaptability, which can effectively improve the efficiency of exploration and mining.

[0003] Existing down-the-hole drilling requires the use of a down-the-hole drill rig. During drilling, the drill rod needs to be straightened so that it can be perpendicular to the ground. Water is also added into the borehole through a pre-reserved channel inside the drill rod to cool the drill bit and remove debris.

[0004] During down-the-hole drilling, water needs to be added to the borehole to help expel the debris along with the water. As the drill rod moves downwards, water is sprayed upwards, causing water to splash outwards from the top of the borehole. Existing drill bit assemblies lack a component to block the splashed water, which affects the normal construction work of surrounding workers and is quite inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a splash-proof drill bit assembly for down-the-hole drilling.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a down-the-hole drilling splash-proof drill bit assembly, including a drill rod, a drill bit is provided at the bottom end of the drill rod, a connecting plate is provided on the outer surface of the top of the drill rod, and a splash-proof component is provided on the outer surface of the connecting plate;

[0009] The splash-proof assembly includes four second rotating plates hinged to the lower surface of the connecting plate. Two fixing blocks are fixedly connected to the upper surface of the second rotating plates. A connecting shaft is fixedly connected between the two fixing blocks. A sleeve is fitted on the outer surface of the connecting shaft. Four rotating cylinders are movably arranged on the outer surface of the connecting plate. A connecting rope is fixedly connected between the rotating cylinders and the sleeve.

[0010] The outer surface of the rotating drum is provided with a locking component;

[0011] The locking assembly includes a ratchet fixedly connected to the outer surface of the rotating drum, an abutment rod provided on the outer surface of the connecting plate, a connecting disc fixedly connected to the outer surface of the abutment rod, a spring fixedly connected between the connecting disc and the connecting plate, and a locking rod movably connected to the outer surface of the connecting plate.

[0012] In a preferred embodiment of the down-the-hole drilling splash-proof drill bit assembly of this utility model, four first rotating plates are hinged to the outer surface of the connecting plate, two abutment blocks are fixedly connected to the lower surface of the first rotating plates, the bottom end of the abutment blocks abuts against the upper surface of the second rotating plates, and a torsion spring is provided at the hinge position between the first rotating plates and the connecting plate.

[0013] As a preferred embodiment of the down-the-hole drilling splash-proof drill bit assembly of this utility model, the outer surface of the connecting plate is provided with four rectangular grooves, the rotating drum is movably connected to the inner wall of the rectangular grooves through a rotating shaft, and the outer surface of the rotating drum is provided with several grooves.

[0014] As a preferred embodiment of the down-the-hole drilling splash-proof drill bit assembly of this utility model, the outer surface of the connecting plate is provided with a hole that mates with the abutment rod, and the end of the abutment rod near the ratchet abuts against the outer surface of the locking rod.

[0015] In a preferred embodiment of the down-the-hole drilling splash-proof drill bit assembly of this utility model, the locking rod is movably connected to the inner wall of the rectangular groove on the outer surface of the connecting plate via a rotating shaft.

[0016] In a preferred embodiment of the down-the-hole drilling splash-proof drill bit assembly of this utility model, four insert rods are interspersed inside the connecting plate, and the top end of each insert rod passes through the connecting plate and is fixedly connected to an installation ring. A circular hole that mates with the drill rod is opened inside the connecting plate, and a bearing is installed inside the circular hole.

[0017] (III) Beneficial Effects

[0018] This utility model provides a splash-proof drill bit assembly for down-the-hole drilling. It has the following beneficial effects:

[0019] 1. Rotate the drum, and the sleeve moves by retracting the connecting rope. The sleeve drives one end of the second rotating plate to tilt up through the connecting shaft. When the second rotating plate tilts up, the first rotating plate abuts against the second rotating plate through the abutting block, thereby tilting the first rotating plate up. The first rotating plate covers the gap between two adjacent second rotating plates, thereby preventing splashed water from spraying out from the gap between the two second rotating plates. The first and second rotating plates prevent splashed water from affecting the construction.

[0020] 2. When rotating the drum, rotate the locking lever so that the bottom end disengages from the outer surface of the ratchet. When pressing the locking lever, the abutment lever drives the spring to contract through the connecting plate. After the locking lever unlocks the ratchet, the abutment lever, under the action of the spring and the connecting plate, drives the abutment lever to abut the locking lever, thereby locking the ratchet by engaging the outer surface of the ratchet and preventing the second rotating plate from falling. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a structural schematic diagram of the connecting plate of this utility model.

[0024] Figure 3 This is an exploded structural diagram of the splash-proof component of this utility model.

[0025] Figure 4 This is an exploded structural diagram of the rotating drum of this utility model.

[0026] Figure 5 This is an exploded structural diagram of the locking component of this utility model.

[0027] Figure 6 This is an exploded structural diagram of the insertion rod of this utility model.

[0028] In the diagram, 1. Drill rod; 2. Splash guard assembly; 201. First rotating plate; 202. Abutment block; 203. Casing; 204. Second rotating plate; 205. Fixing block; 206. Connecting shaft; 207. Connecting rope; 208. Rotary drum; 3. Locking assembly; 301. Locking rod; 302. Abutment rod; 303. Spring; 304. Connecting disc; 305. Ratchet; 306. Mounting ring; 307. Insert rod; 4. Connecting plate; 5. Drill bit. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Example 1

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention. This embodiment provides a down-the-hole drilling splash-proof drill bit assembly, including a drill rod 1, a drill bit 5 at the bottom end of the drill rod 1, a connecting plate 4 on the outer surface of the top of the drill rod 1, and a splash-proof component 2 on the outer surface of the connecting plate 4. The splash-proof component 2 includes four second rotating plates 204 hinged to the lower surface of the connecting plate 4. Two fixing blocks 205 are fixedly connected to the upper surface of the second rotating plates 204. A connecting shaft 206 is fixedly connected between the two fixing blocks 205. A sleeve 203 is sleeved on the outer surface of the connecting shaft 206. Four rotating cylinders 208 are movably arranged on the outer surface of the connecting plate 4. A connecting rope 207 is fixedly connected between the rotating cylinders 208 and the sleeves 203.

[0032] Specifically, four first rotating plates 201 are hinged to the outer surface of the connecting plate 4. Two abutment blocks 202 are fixedly connected to the lower surface of the first rotating plate 201. The bottom end of the abutment block 202 abuts against the upper surface of the second rotating plate 204. A torsion spring is provided at the hinge position between the first rotating plate 201 and the connecting plate 4. The first rotating plate 201 can block the gap between two adjacent second rotating plates 204, preventing mud from spraying out from the gap between two adjacent second rotating plates 204.

[0033] Specifically, the outer surface of the connecting plate 4 has four rectangular slots. The rotating drum 208 is movably connected to the inner wall of the rectangular slots via a rotating shaft. The outer surface of the rotating drum 208 has several grooves. The grooves on the outer surface of the rotating drum 208 make it convenient for the user to rotate the rotating drum 208. Rotating the rotating drum 208 will cause the connecting rope 207 to be stored inside the rotating drum 208.

[0034] Furthermore, rotating the drum 208 retracts the connecting rope 207, causing the connecting rope 207 to move the connecting shaft 206 via the sleeve 203. The connecting shaft 206, through the fixing block 205, causes one end of the second rotating plate 204 to tilt upwards. When the second rotating plate 204 tilts upwards, the first rotating plate 201 abuts against the second rotating plate 204 via the abutting block 202, thereby tilting the first rotating plate 201 upwards. The first rotating plate 201 then covers the gap between the two adjacent second rotating plates 204, thus preventing splashed water from spraying out from the gap between the two second rotating plates 204.

[0035] Example 2

[0036] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6This is the second embodiment of the present invention. Based on the previous embodiment, the outer surface of the rotating drum 208 is provided with a locking component 3. The locking component 3 includes a ratchet 305 fixedly connected to the outer surface of the rotating drum 208, an abutment rod 302 provided on the outer surface of the connecting plate 4, a connecting disc 304 fixedly connected to the outer surface of the abutment rod 302, a spring 303 fixedly connected between the connecting disc 304 and the connecting plate 4, and a locking rod 301 movably connected to the outer surface of the connecting plate 4.

[0037] Specifically, the outer surface of the connecting plate 4 is provided with a hole that mates with the abutment rod 302. The end of the abutment rod 302 near the ratchet 305 abuts against the outer surface of the locking rod 301. The locking rod 301 is movably connected to the inner wall of the rectangular groove on the outer surface of the connecting plate 4 through a rotating shaft. With the setting of the spring 303, the abutment rod 302 abuts against the outer surface of the bottom end of the locking rod 301, thereby driving the abutment rod 302 to insert into the tooth groove on the outer surface of the ratchet 305, thereby locking the ratchet 305, thus locking the rotating cylinder and preventing the rotating cylinder from opening after the connecting rope 207 is retracted.

[0038] Specifically, four insert rods 307 are interspersed inside the connecting plate 4. The top of each insert rod 307 passes through the connecting plate 4 and is fixedly connected to an installation ring 306. The connecting plate 4 has a circular hole that mates with the drill rod 1. A bearing is installed inside the circular hole. Through the arrangement of the insert rods 307 and the installation ring 306, the installation ring 306 drives the four insert rods 307 to be inserted into the ground, thereby fixing the connecting plate 4 and providing auxiliary support.

[0039] Furthermore, when rotating the drum 208, the locking rod 301 is rotated, causing its bottom end to disengage from the outer surface of the ratchet 305. When the locking rod 301 is pressed, the abutment rod 302 drives the spring 303 to retract through the connecting plate 304. After the locking rod 301 unlocks the ratchet 305, the abutment rod 302, under the action of the spring 303 and the connecting plate 304, drives the abutment rod 302 to abut against the locking rod 301, thereby locking the ratchet 305 by engaging the outer surface of the ratchet 305 through the locking rod 301, thus preventing the second rotating plate 204 from falling.

[0040] Working principle: During down-the-hole drilling, after the drill rod 1 and drill bit 5 are inserted into the ground and adjusted to a vertical position, the connecting plate 4 is pressed down, causing the bottom end of the insertion rod 307 to contact the ground. Then, the connecting plate 4 and the mounting ring 306 are pressed down further, thereby causing the insertion rod 307 to be inserted into the ground, thus fixing the connecting plate 4. Then, the angle of opening the second rotating plate 204 is selected according to the different drilling depths and the amount of water injected. When rotating the second rotating plate 204, the bottom end of the locking rod 301 needs to be pressed, thereby causing the bottom end of the locking rod 301 to disengage from the outer surface of the ratchet 305. When the locking rod 301 is pressed, the abutment rod 302 drives the spring 303 to retract through the connecting plate 304. After the locking rod 301 unlocks the ratchet 305, the rotating drum 208 is rotated, thereby retracting the connecting rope 207 through the rotation, so that the connecting rope 207 drives the connecting shaft 206 through the sleeve 203. The connecting shaft 206 moves, causing one end of the second rotating plate 204 to tilt upwards via the fixing block 205. When the second rotating plate 204 tilts upwards, the first rotating plate 201 abuts against the second rotating plate 204 via the abutting block 202, thus tilting the first rotating plate 201 upwards. The first rotating plate 201 covers the gap between two adjacent second rotating plates 204, thus preventing splashed water from spraying out from the gap between the two second rotating plates 204. After rotating the second rotating plate 204 to the designated position, the locking rod 301 is released. Under the action of the spring 303 and the connecting plate 304, the abutting rod 302 abuts against the locking rod 301, thus locking the ratchet 305 by engaging the outer surface of the ratchet 305, preventing the second rotating plate 204 from falling, and ultimately preventing splashing from affecting construction during the use of drill rod 1 and drill bit 5.

[0041] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A splash-proof drill bit assembly for down-the-hole drilling, comprising a drill rod, wherein a drill bit is disposed at the bottom end of the drill rod, characterized in that: A connecting plate is provided on the outer surface of the top of the drill pipe, and a splash-proof component is provided on the outer surface of the connecting plate; The splash-proof assembly includes four second rotating plates hinged to the lower surface of the connecting plate. Two fixing blocks are fixedly connected to the upper surface of the second rotating plates. A connecting shaft is fixedly connected between the two fixing blocks. A sleeve is fitted on the outer surface of the connecting shaft. Four rotating cylinders are movably arranged on the outer surface of the connecting plate. A connecting rope is fixedly connected between the rotating cylinders and the sleeve. The outer surface of the rotating drum is provided with a locking component; The locking assembly includes a ratchet fixedly connected to the outer surface of the rotating drum, an abutment rod provided on the outer surface of the connecting plate, a connecting disc fixedly connected to the outer surface of the abutment rod, a spring fixedly connected between the connecting disc and the connecting plate, and a locking rod movably connected to the outer surface of the connecting plate.

2. The splash-proof drill bit assembly for down-the-hole drilling according to claim 1, characterized in that: Four first rotating plates are hinged to the outer surface of the connecting plate. Two abutment blocks are fixedly connected to the lower surface of the first rotating plates. The bottom end of the abutment block abuts against the upper surface of the second rotating plate. A torsion spring is provided at the hinge position between the first rotating plate and the connecting plate.

3. The splash-proof drill bit assembly for down-the-hole drilling according to claim 2, characterized in that: The outer surface of the connecting plate has four rectangular slots, and the rotating cylinder is movably connected to the inner wall of the rectangular slots via a rotating shaft. The outer surface of the rotating cylinder has several grooves.

4. The splash-proof drill bit assembly for down-the-hole drilling according to claim 3, characterized in that: The outer surface of the connecting plate has a socket that mates with the abutment rod, and the end of the abutment rod near the ratchet abuts against the outer surface of the locking rod.

5. A down-the-hole drilling splash-proof drill bit assembly according to claim 4, characterized in that: The locking rod is movably connected to the inner wall of the rectangular groove on the outer surface of the connecting plate via a rotating shaft.

6. A down-the-hole drilling splash-proof drill bit assembly according to claim 5, characterized in that: Four insert rods are interspersed inside the connecting plate. The top of each insert rod passes through the connecting plate and is fixedly connected to an installation ring. A circular hole that mates with the drill rod is opened inside the connecting plate, and a bearing is installed inside the circular hole.

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