Reverse circulation drill bit fisher

Abstract

The utility model belongs to the field of drill bit fishers, and particularly relates to a reverse circulation drill bit fisher which comprises a fisher body and a cleaning mechanism. A fished drill bit is clamped through the mechanical arm, then water in the water tank is sucked through the water pumping pipe, the water is conveyed into the hose from the water conveying pipe through the work of the water pump, conveyed into the water spraying ring through the hose and finally sprayed out through the spraying head, and then the air cylinder starts to work and drives the connecting rod to move up and down. A water spraying ring is driven to move up and down through a connecting rod, the effect of cleaning a fished drill bit is achieved, and the problem that in the drill bit fishing process, a clamp on a fisher is generally used for clamping the falling drill bit and then lifting the drill bit to the ground, but the fished drill bit is mixed with much muddy water, and the service life of the drill bit is prolonged is solved. And workers need to manually clean the drill bit by using other equipment, so that the tedious working steps of the workers are increased, and a large amount of time is also consumed.

Description

Technical Field

[0001] The utility model relates to the field of drill bit salvage devices, in particular to a reverse circulation drill bit salvage device. Background Art

[0002] In the process of drilling pile holes on the ground, the deeper you go, the more hard rock there is. At this time, the driller will increase the torque to drill downwards. However, after the torque increases, the connection of the drill bit may be separated from the driller because it cannot withstand such a large torque, leaving the drill bit very deep underground. At this time, a reverse circulation drill bit salvage device will be used.

[0003] In the process of salvaging a drill bit, a professional drill bit salvage device is generally used to go deep into the ground. The fallen drill bit is clamped with pliers on the salvage device and then raised to the surface, thereby achieving the purpose of salvaging the drill bit. However, the salvaged drill bit is generally mixed with a lot of mud and water, and workers need to use additional equipment to manually clean the drill bit. This increases the cumbersome work steps of the workers and consumes a lot of time. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology, the drill bit that is usually salvaged will be mixed with a lot of mud and water, which makes it inconvenient to clean. The utility model provides a reverse circulation drill bit salvage device.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a reverse circulation drill bit salvage device, comprising a salvage device body and a cleaning mechanism, wherein the salvage device body comprises a shell, the top of the shell is fixedly connected to a top platform, the bottom of the top platform is fixedly connected to a telescopic rod, and the bottom of the telescopic rod is movably connected to a manipulator;

[0006] The cleaning mechanism includes a water pump, which is arranged on the top of the top platform. The input end of the water pump is connected to a water suction pipe, one end of the water suction pipe is connected to a water tank, the output end of the water pump is connected to a water supply pipe, the other end of the water supply pipe passes through the bottom of the top platform and is connected to a hose, the bottom of the hose is connected to a water spray ring, the inner side of the water spray ring is connected to a nozzle, and the number of the nozzles is several.

[0007] Preferably, a cylinder is fixedly connected to the top of the top platform, and the number of the cylinders is two. The output end of the cylinder is fixedly connected to a connecting rod, and the bottom of the connecting rod is fixedly connected to the surface of the water spray ring.

[0008] Preferably, a bracket is fixedly connected to the bottom of the water pump, the diameter of the inner cavity of the bracket is consistent with the diameter of the water pump, and the bottom of the bracket is fixedly connected to the top of the top platform.

[0009] Preferably, the inner cavity of the shell is provided with four dovetail grooves, the inside of the dovetail grooves is movably connected with dovetail blocks, and the inner side of the dovetail blocks is fixedly connected to the surface of the water spray ring.

[0010] Preferably, a water guide plate is fixedly connected to the bottom of the inner cavity of the water tank, and the water guide plate is arranged in an inclined structure, and the inclined surface of the water guide plate is located on one side of the water suction pipe.

[0011] Preferably, the top of the water tank is connected to a water inlet, the top of the water inlet surface is fixedly connected to a mounting block, the inner wall of the mounting block is fixedly connected to a fixing column, the surface of the fixing column is movably connected to a connecting block, one side of the connecting block is fixedly connected to a cover, and the bottom of the cover is movably connected to the top of the water inlet.

[0012] Preferably, a spring is sleeved on the surface of the fixing column, and there are two springs. One end of the spring is fixedly connected to the outer side of the connecting block, and the other end of the spring is fixedly connected to the inner wall of the mounting block.

[0013] The utility model is beneficial in that:

[0014] The utility model clamps the salvaged drill bit by a manipulator, then draws water from the water tank through a suction pipe, and through the operation of the water pump, the water is transported from the water supply pipe to the inside of the hose, and then to the inside of the water spray ring through the hose, and finally sprayed out by the nozzle, and then the cylinder starts to work, and the connecting rod is driven by the cylinder to move up and down, and the water spray ring is driven by the connecting rod to move up and down, thereby achieving the cleaning effect of the salvaged drill bit, and solving the problem that in the process of salvaging the drill bit, a professional drill bit salvage device is generally used to go deep into the ground, and the pliers on the salvage device are used to clamp the fallen drill bit and then rise to the ground, thereby achieving the function of salvaging the drill bit, but the salvaged drill bit is generally mixed with a lot of mud and water, and the workers need to use additional equipment to manually clean the drill bit, which increases the cumbersomeness of the workers' working steps and also consumes a lot of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the top platform of the present utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the shell of the present utility model;

[0019] Figure 4 For the utility model Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 5 This is a schematic cross-sectional view of a water tank according to the present invention;

[0021] Figure 6 This is a schematic diagram of the exploded structure of the water inlet of the present utility model.

[0022] In the figure: 1. Salvage device body; 101. Shell; 102. Telescopic rod; 103. Manipulator; 104. Top platform; 2. Cleaning mechanism; 201. Water pump; 202. Water tank; 203. Water inlet; 204. Water suction pipe; 205. Water supply pipe; 206. Connecting rod; 207. Hose; 208. Water spray ring; 209. Nozzle; 210. Dovetail block; 211. Water guide plate; 212. Cylinder; 213. Dovetail groove; 214. Cover; 215. Connecting block; 216. Spring; 217. Fixing column; 218. Mounting block; 219. Bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The following is combined with Figure 1-6 To further explain this application,

[0025] The embodiment of the present application discloses a reverse circulation drill bit fishing device. Figure 1 and Figure 6 A reverse circulation drill bit salvage device includes a salvage device body 1 and a cleaning mechanism 2. The salvage device body 1 includes a shell 101. The top of the shell 101 is fixedly connected to a top platform 104. The bottom of the top platform 104 is fixedly connected to a telescopic rod 102. The bottom of the telescopic rod 102 is movably connected to a manipulator 103.

[0026] The cleaning mechanism 2 includes a water pump 201, which is arranged on the top of the top platform 104. The input end of the water pump 201 is connected to a water suction pipe 204, one end of which is connected to a water tank 202, and the output end of the water pump 201 is connected to a water supply pipe 205. The other end of the water supply pipe 205 passes through the bottom of the top platform 104 and is connected to a hose 207. The bottom of the hose 207 is connected to a water spray ring 208, and the inner side of the water spray ring 208 is connected to a nozzle 209. There are several nozzles 209.

[0027] Reference Figure 2 The top of the top platform 104 is fixedly connected to a cylinder 212. There are two cylinders 212. The output end of the cylinder 212 is fixedly connected to a connecting rod 206. The bottom of the connecting rod 206 is fixedly connected to the surface of the water spray ring 208. Through the arrangement of the cylinder 212 and the connecting rod 206, the water spray ring 208 can be moved up and down in the inner cavity of the shell 101, thereby performing multi-directional cleaning on the clamped drill bit, thereby improving the cleaning effect of the drill bit.

[0028] Reference Figure 2 The bottom of the water pump 201 is fixedly connected to a bracket 219. The diameter of the inner cavity of the bracket 219 is consistent with the diameter of the water pump 201. The bottom of the bracket 219 is fixedly connected to the top of the top platform 104. The bracket 219 is provided to support and fix the water pump 201, so that the water pump 201 will not shake during operation, thereby improving the stability of the water pump 201 during operation.

[0029] Reference Figure 4 The inner cavity of the shell 101 is provided with four dovetail grooves 213. The inner portion of the dovetail grooves 213 is movably connected with a dovetail block 210. The inner side of the dovetail block 210 is fixedly connected to the surface of the water spray ring 208. The dovetail grooves 213 and the dovetail block 210 ensure that the water spray ring 208 will not tilt during the up and down sliding due to uneven force on one side when sliding in the inner cavity of the shell 101, thereby improving the stability of the water spray ring 208 when sliding in the inner cavity of the shell 101.

[0030] Reference Figure 5 The bottom of the inner cavity of the water tank 202 is fixedly connected with a water guide plate 211. The water guide plate 211 is arranged in an inclined structure. The inclined surface of the water guide plate 211 is located on one side of the water pumping pipe 204. The water guide plate 211 is arranged to guide the water in the water tank 202, so that the water inside the water tank 202 will flow smoothly into the interior of the water pumping pipe 204 along the inclined surface of the water guide plate 211.

[0031] Reference Figure 6The top of the water tank 202 is connected to the water inlet 203. The top of the surface of the water inlet 203 is fixedly connected to a mounting block 218. The inner wall of the mounting block 218 is fixedly connected to a fixing column 217. The surface of the fixing column 217 is movably connected to the connecting block 215. One side of the connecting block 215 is fixedly connected to a cover 214. The bottom of the cover 214 is movably connected to the top of the water inlet 203. The setting of the fixing column 217 plays a role in fixing and supporting the position of the connecting block 215, so that the connecting block 215 will not be separated from the inner cavity of the mounting block 218 when it rotates in the inner cavity of the mounting block 218.

[0032] Reference Figure 6 The surface of the fixing column 217 is sleeved with a spring 216, and there are two springs 216. One end of the spring 216 is fixedly connected to the outer side of the connecting block 215, and the other end of the spring 216 is fixedly connected to the inner wall of the mounting block 218. The spring 216 is set so that the connecting block 215 is not subjected to external force. Due to the elastic action of the spring 216, the cover 214 is driven to fit tightly against the top of the water inlet 203, so that sewage will not enter the water inlet 203.

[0033] Working principle: When the telescopic rod 102 drives the manipulator 103 to the appropriate position to grab the salvaged drill bit and return to the ground, the cover 214 is moved, so that the cover 214 drives the connecting block 215 to rotate on the surface of the fixed column 217, and then water is injected into the water inlet 203. Then the cover 214 is loosened. At this time, due to the elastic effect of the spring 216, the connecting block 215 drives the cover 214 to contact the top of the water inlet 203 again. At this time, the water in the water tank 202 will flow into the water pipe 204 due to the guidance of the water guide plate 211. At this time, the water pump 201 starts to work, and the water inside the water pump pipe 204 is extracted by the water pump 201, and then transported to the inside of the hose 207 by the water supply pipe 205, and then transported to the inside of the water spray ring 208 through the hose 207, and finally sprayed out by the nozzle 209. At the same time, the cylinder 212 starts to work, and the cylinder 212 drives the connecting rod 206 to move up and down, and the connecting rod 206 drives the water spray ring 208 to move, and the water spray ring 208 drives the dovetail block 210 to move up and down inside the dovetail groove 213, thereby realizing multi-directional cleaning of the salvaged drill bit.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A reverse circulation drill bit overshot, characterized by: The salvage device comprises a salvage device body (1) and a cleaning mechanism (2), wherein the salvage device body (1) comprises a shell (101), the top of the shell (101) is fixedly connected to a top platform (104), the bottom of the top platform (104) is fixedly connected to a telescopic rod (102), and the bottom of the telescopic rod (102) is movably connected to a manipulator (103); The cleaning mechanism (2) comprises a water pump (201), the water pump (201) being arranged on the top of the top platform (104), the input end of the water pump (201) being connected to a water pumping pipe (204), one end of which being connected to a water tank (202), the output end of the water pump (201) being connected to a water supply pipe (205), the other end of which being passed through the bottom of the top platform (104) and being connected to a hose (207), the bottom of the hose (207) being connected to a water spray ring (208), the inner side of the water spray ring (208) being connected to a nozzle (209), and the number of the nozzles (209) being several.

2. A reverse circulation drill bit overshot according to claim 1, characterized in that: The top of the top platform (104) is fixedly connected to a cylinder (212), the number of the cylinders (212) is two, the output end of the cylinder (212) is fixedly connected to a connecting rod (206), and the bottom of the connecting rod (206) is fixedly connected to the surface of the water spray ring (208).

3. The reverse circulation drill bit overshot according to claim 1, characterized in that: The bottom of the water pump (201) is fixedly connected to a bracket (219), the diameter of the inner cavity of the bracket (219) is consistent with the diameter of the water pump (201), and the bottom of the bracket (219) is fixedly connected to the top of the top platform (104).

4. The reverse circulation drill bit overshot according to claim 1, characterized in that: The inner cavity of the shell (101) is provided with four dovetail grooves (213). The dovetail grooves (213) are movably connected to dovetail blocks (210) inside the dovetail grooves (213). The inner side of the dovetail blocks (210) is fixedly connected to the surface of the water spray ring (208).

5. The reverse circulation drill bit overshot according to claim 1, characterized in that: A water guide plate (211) is fixedly connected to the bottom of the inner cavity of the water tank (202), and the water guide plate (211) is arranged in an inclined structure, with the inclined surface of the water guide plate (211) located on one side of the water pumping pipe (204).

6. The reverse circulation drill bit overshot according to claim 1, characterized in that: The top of the water tank (202) is connected to a water inlet (203); a mounting block (218) is fixedly connected to the top of the surface of the water inlet (203); a fixing column (217) is fixedly connected to the inner wall of the mounting block (218); a connecting block (215) is movably connected to the surface of the fixing column (217); a cover (214) is fixedly connected to one side of the connecting block (215); and a bottom of the cover (214) is movably connected to the top of the water inlet (203).

7. The reverse circulation drill bit overshot according to claim 6, characterized in that: The surface of the fixing column (217) is sleeved with a spring (216), and the number of the springs (216) is two. One end of the spring (216) is fixedly connected to the outer side of the connecting block (215), and the other end of the spring (216) is fixedly connected to the inner wall of the mounting block (218).

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