CN112901087A - Petroleum drill pipe - Google Patents

Petroleum drill pipe Download PDF

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Publication number
CN112901087A
CN112901087A CN202110115318.4A CN202110115318A CN112901087A CN 112901087 A CN112901087 A CN 112901087A CN 202110115318 A CN202110115318 A CN 202110115318A CN 112901087 A CN112901087 A CN 112901087A
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CN
China
Prior art keywords
locking
ring
elastic
locking ring
drill pipe
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Granted
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CN202110115318.4A
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CN112901087B (en
Inventor
李宛芸
苏强
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Yanchang Yongtong Petroleum Technology Service Co ltd
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Individual
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Publication of CN112901087A publication Critical patent/CN112901087A/en
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Publication of CN112901087B publication Critical patent/CN112901087B/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

The invention discloses an oil drill rod which comprises a drill pipe, wherein one end of the drill pipe is connected with a drill bit, the other end of the drill pipe is provided with a connector, the surface of the drill pipe is provided with a locking device, the locking device comprises a first locking ring and a second locking ring, locking blocks are arranged on the surfaces of the first locking ring and the second locking ring, clamping devices are connected to the surfaces of the two sides of the first locking ring and the second locking ring, each clamping device comprises a lower clamping block and an upper clamping block, a clamping block is arranged at the upper end of each upper clamping block, through holes are formed in the surfaces of the locking blocks and the clamping blocks, a threaded rod is arranged inside each through hole, and nuts are arranged at the two ends of each threaded rod. The petroleum drill rod is not easy to slip during transportation, a plurality of drill rods with different sizes can be transported simultaneously, and the transportation efficiency is high.

Description

Petroleum drill pipe
Technical Field
The invention relates to the field of oil exploitation, in particular to an oil drill rod.
Background
The drill rod is a steel pipe with threads at the tail part and is used for connecting surface equipment of a drilling machine and drilling and grinding equipment or a bottom hole device positioned at the bottom end of a drilling well, the drill rod is used for conveying drilling mud to a drill bit and improving, reducing or rotating the bottom hole device together with the drill bit, the drill rod can bear huge internal and external pressure, distortion, bending and vibration, and the drill rod can be used for multiple times in the process of exploiting and refining oil gas;
an invention patent with the patent number of CN 108915608B discloses an oil drill rod, which specifically comprises a transportation mechanism, a first fixed seat, a connecting pipe, a second fixed seat, a cleaning mechanism, a water washing mechanism, a lubricating mechanism, an air drying mechanism, a box body, a power supply box, a drill rod main body, an adapter and a drill bit; the mud scraping mechanism can scrape mud on the outer wall of the passing drill rod, so that mud on the outer wall of the drill rod is quickly separated from the drill rod, and manual cleaning at a later stage is not needed; the water washing mechanism can spray water and lubricating oil to the outside of the drill rod, so that the drill rod can be kept in a lubricating state all the time during machining, the machining smoothness of the drill rod is improved, the water washing mechanism can spray water to clean the drill rod and can act together with the mud scraping mechanism, and the outer wall of the drill rod is cleaner; the outer wall of the drill rod can be dried through the air drying mechanism, so that the finally recovered drill rod is in a clean and dry state, and secondary treatment is not needed manually;
in carrying the handling to the drilling rod, because be independent separation between the drilling rod, and the surface is smooth, when carrying many with the drilling rod simultaneously, appear skidding easily, often can only single transport during the operation, the transport is convenient inadequately, and efficiency is not high, in addition, carries the drilling rod of many different sizes simultaneously not convenient for more, in order to solve above-mentioned problem, we have proposed an oil drilling rod.
Disclosure of Invention
The invention mainly aims to provide an oil drill rod which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
an oil drill pipe, comprising a drill pipe, characterized in that: one end of the drill pipe is connected with a drill bit, and the other end of the drill pipe is provided with a connector; the surface of the drill pipe is provided with a locking device, and two sides of the locking device are respectively provided with a clamping device; the locking device comprises a first locking ring, a second locking ring and a locking block; the upper end surface and the lower end surface of the first locking ring and the second locking ring are respectively provided with a locking block, and the locking blocks are positioned at the end parts of the first locking ring and the second locking ring; the two side surfaces of the first locking ring and the second locking ring are connected with clamping devices;
the clamping device comprises a lower clamping block, a bayonet, a hinge, an upper clamping block, a clamping block and a pull rod; a bayonet is formed between the inner walls of the lower fixture block and the upper fixture block, and the size of the drill pipe is matched with the bayonet; the joint of the upper end surface of the lower clamping block and the lower end surface of the upper clamping block is rotatably connected through a hinge; the lower end of the lower clamping block and the upper end of the upper clamping block are both provided with clamping blocks; the upper end of the upper clamping block is connected with a pull rod, and the surface of the pull rod is provided with a cotton sleeve; through holes are formed in the surfaces of the locking block and the clamping block, a threaded rod is arranged inside the through holes, and nuts are arranged at two ends of the threaded rod;
when the drill pipe and the drill rod are required to be carried, a user firstly sleeves the first locking ring and the second locking ring on the surface of the drill pipe, selects a proper position between the drill bit and the connector according to different product sizes, when the drill rod is required to be fixed, the user firstly aligns the clamping blocks at the lower ends of the symmetrical lower clamping blocks with the through holes of the locking blocks arranged at the lower ends of the first locking ring and the second locking ring, firstly penetrates the threaded rod through the through holes of the locking blocks and the clamping blocks at the lower ends, sleeves the nuts at the two ends of the threaded rod and screws the outer walls of the clamping blocks to be in a non-contact state, namely, at the moment, the lower clamping blocks, the upper clamping blocks, the outer walls of the first locking ring and the second locking ring are in clearance fit, and the upper clamping blocks are; then a user holds the cotton sleeve on the surface of the pull rod to pull up the upper clamping block, the opening and closing of the upper clamping block can be realized through the hinge, the upper clamping block is opened, the bayonet is changed into a semi-annular shape from an annular shape at the moment, a drill rod to be carried is placed in the bayonet, finally, the clamping block at the upper end of the symmetrical upper clamping block is aligned with the through hole of the locking block arranged at the upper end of the first locking ring or the second locking ring, so that the bayonet is closed to form an annular structure, and the drill rod is clamped in the bayonet, because the two sides of the locking device are provided with the clamping devices, three drill rods can be carried at the same time, then the threaded rod passes through the through holes of the locking block and the clamping block at the upper end, and the nuts sleeved on the threaded rods at the upper end and the lower end are synchronously screwed, so that the nut is extruded and attached to the outer wall of the clamping block, if the nut below the clamping block is inconvenient to screw, a user can firstly use the hoisting device to place a drill rod or a drill pipe on the bracket for installation and fixation; thereby can be with first locking ring, the surface at the drill pipe is fixed to the second locking ring, and simultaneously, can also fix the fixture block on the surface at first locking ring or second locking ring with lower fixture block, thereby can prevent the fixture block upset, avoid the drilling rod to appear from the inside roll-off's of bayonet socket the condition, and then, cooperation through locking device and chucking device, locking device can lock fixedly by a drill pipe, chucking device can fix the drilling rod locking at the lateral wall of drill pipe, thereby be convenient for the carrier to drill pipe and with many drilling rods of drill pipe complex carry fast, thereby solved current drilling rod or drill pipe and can only single transport, it is convenient inadequately to carry, and the phenomenon that efficiency is not high.
Preferably, the locking device further comprises a squeezing ring, an elastic cavity ring and a positioning fixture block; counter bores are formed in the outer surfaces of the locking blocks, the upper end surface and the lower end surface of the locking blocks are symmetrically arranged on the outer surfaces of the locking blocks, and extrusion rings are slidably mounted in the counter bores; an elastic cavity ring is arranged between the inner side surface of the extrusion ring and the counter sink; flow guide cavities are formed in the first locking ring and the second locking ring and are communicated into the elastic cavity ring through flow guide grooves; positioning grooves are symmetrically formed in the outer side surfaces of the first locking ring and the second locking ring, and positioning clamping blocks are connected in the positioning grooves in a sliding mode through elastic hoses; the outer wall of the elastic hose is sleeved with a spring, and the elastic hose is communicated with the diversion trench; positioning clamping grooves are symmetrically formed in the inner cavity walls of the lower clamping block and the upper clamping block and are aligned with the positioning grooves; the outer wall of the extrusion ring is provided with an elastic extrusion piece, and the other end of the elastic extrusion piece is in extrusion contact with the inner side surface of the clamping block; hydraulic oil is filled in the elastic cavity ring and the flow guide cavity;
when the elastic clamping piece is in a stretching state, the part of the positioning fixture block which slides out can slide into the positioning groove, so that a plurality of positioning fixture blocks can be connected to the lower fixture block, the upper fixture block and the first locking ring, The inner wall between the second locking rings can play a role in supporting the lower fixture block and the upper fixture block by tension, so that the situation that when a plurality of users lift the drill rod and the drill pipe through the pull rod, the tension of the pull rod on the upper fixture block directly acts on the threaded rod due to the vertical downward gravity of the drill rod, the threaded rod is damaged, and the service lives of the locking device and the clamping device are influenced is effectively prevented; when dismantling drilling rod and drill pipe locking device and chucking device as required, user's antiport nut, make its card piece break away from the extrusion to the elasticity extruded article, thereby make the elastic tension of the spring that the extrusion ring cup jointed at the elastic hose outer wall and the spring elasticity thrust that cup joints at elasticity cavity ring outer wall slide to the counter sink outside, thereby make the pulling force of extrusion ring and the compressive force of location fixture block down can pass through the guiding gutter with the inside hydraulic oil of elastic hose and the leading-in elasticity cavity ring inside to tensile inflation of guiding gutter, thereby make the location fixture block can contract in the constant head tank, be convenient for separate locking device and chucking device.
Preferably, the elastic extrusion part is arranged in a sleeve shape, and the sleeve-shaped elastic extrusion part comprises a metal ring and an elastic corrugated pipe; the sleeve-shaped elastic extrusion piece sliding sleeve is arranged on the outer wall of the threaded rod; the inner side wall of the clamping block is provided with a positioning hole, and the positioning hole is aligned with the counter bore; the countersunk hole, the positioning hole and the through hole are coaxial; metal rings are fixed at two ends of the elastic corrugated pipe, the metal ring at one end of the elastic corrugated pipe is connected with the extrusion ring, and the metal ring at the other end of the elastic corrugated pipe is inserted into the positioning hole; the during operation, the elastic extrusion spare both ends that set up are elastic corrugated pipe in the middle of the becket, the extrusion force of card fixed piece can take lead to make elastic corrugated pipe produce the compression earlier, when elastic corrugated pipe compressed to the biggest limit, the continuation of nut is twisted reverse can extrude the extrusion ring through the elastic extrusion spare after compressing, thereby be convenient for the extrusion ring can remove, and the elastic extrusion spare after the compression can play the effect of elastic buffer between card fixed piece and locking piece, effectively prevent when drilling rod and drill pipe produce when rocking when the transportation, and because the threaded rod inserts in the through-hole, and non-threaded connection, thereby lead to producing the phenomenon of rocking or producing the displacement between card fixed piece and the locking piece, thereby influence the stable connection between chucking device and the locking device.
Preferably, an annular cavity is formed in the elastic corrugated pipe, and a spiral spring with a square section is sleeved in the annular cavity; the during operation, the inside cross-section that sets up of elastic bellows is square coil spring, when elastic bellows received the becket compression at both ends, the becket can take the lead to the cross-section to compress for square coil spring, make the cross-section for square coil spring can contract in elastic bellows, the coincide forms stereoplasm ring cover between the square ring of messenger coil spring, thereby improve elastic bellows's intensity and rigidity, effectively prevent to produce the phenomenon of warping because elastic bellows compression capacity is too big, thereby influence the extrusion of elasticity extruded article to the stable extrusion of extrusion ring.
Preferably, the inner surfaces of the first locking ring and the second locking ring are in sliding connection with the outer side of the drill pipe, and the first locking ring and the second locking ring have the same size; during operation, the first locking ring and the second locking ring are sleeved on the surface of the drill pipe, and meanwhile, the positions of the first locking ring and the second locking ring can be adjusted between the drill bit and the connector according to different product sizes, so that the drill pipe with different sizes can be suitable.
Preferably, the upper end of the upper clamping block is connected with a pull rod, and the surface of the pull rod is provided with a cotton sleeve; during operation, the pull rod can be pulled up conveniently to go up the fixture block, can avoid leading to the palm injured's condition to appear because of frequently rubbing between hand and the pull rod through setting up the cotton cover.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the matching of the locking device and the clamping device, the locking device can lock and fix the drill pipe, and the clamping device can lock and fix the drill pipe on the side wall of the drill pipe, so that a carrier can carry the drill pipe and a plurality of drill pipes matched with the drill pipe conveniently, and the problems that the existing drill pipe or drill pipe can be carried by only one drill pipe, the carrying is not convenient enough, and the efficiency is not high are solved.
2. According to the invention, through the matching of the extrusion ring and the positioning fixture blocks, the plurality of positioning fixture blocks can be connected to the inner walls among the lower fixture block, the upper fixture block, the first locking ring and the second locking ring, so that the lower fixture block and the upper fixture block can be supported by tension, and the phenomenon that the tension of the upper fixture block by the pull rod directly acts on the threaded rod due to the vertical downward gravity of the drill rod when a plurality of users lift the drill rod and the drill pipe through the pull rod, and the threaded rod is damaged is further effectively prevented, so that the service lives of the locking device and the clamping device are influenced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an assembly view of the clamping mechanism and locking mechanism of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2 of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 according to the present invention.
In the figure: 1. drilling a pipe; 2. a drill bit; 3. a connector; 4. a locking device; 41. a first locking ring; 411. a flow guide cavity; 42. a second locking ring; 421. a diversion trench; 422. positioning a groove; 43. a locking block; 431. a countersunk hole; 44. an extrusion ring; 45. an elastic cavity ring; 46. positioning a fixture block; 47. an elastic hose; 5. a clamping device; 51. a lower clamping block; 52. a bayonet; 53. a hinge; 54. an upper clamping block; 541. positioning the clamping groove; 55. a clamping block; 551. positioning holes; 56. a pull rod; 6. an elastic extrusion member; 61. a metal ring; 62. an elastic bellows; 621. an annular cavity; 63. a coil spring; 7. a threaded rod; 8. a nut; 9. and a through hole.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-4, an oil drill pipe comprises a drill pipe 1, and is characterized in that: one end of the drill pipe 1 is connected with a drill bit 2, and the other end of the drill pipe 1 is provided with a connector 3; the surface of the drill pipe 1 is provided with a locking device 4, and two sides of the locking device 4 are respectively provided with a clamping device 5; the locking device 4 comprises a first locking ring 41, a second locking ring 42 and a locking block 43; the upper end surface and the lower end surface of the first locking ring 41 and the second locking ring 42 are respectively provided with a locking block 43, and the locking blocks 43 are positioned at the end parts of the first locking ring 41 and the second locking ring 42; the two side surfaces of the first locking ring 41 and the second locking ring 42 are connected with clamping devices 5;
the clamping device 5 comprises a lower clamping block 51, a clamping opening 52, a hinge 53, an upper clamping block 54, a clamping block 55 and a pull rod 56; a bayonet 52 is formed between the inner walls of the lower fixture block 51 and the upper fixture block 54, and the size of the drill pipe 1 is matched with the bayonet 52; the joint of the upper end surface of the lower fixture block 51 and the lower end surface of the upper fixture block 54 is rotatably connected through a hinge 53; the lower end of the lower fixture block 51 and the upper end of the upper fixture block 54 are both provided with a clamping block 55; the upper end of the upper fixture block 54 is connected with a pull rod 56, and the surface of the pull rod 56 is provided with a cotton sleeve; through holes 9 are formed in the surfaces of the locking block 43 and the clamping block 55, a threaded rod 7 is arranged in each through hole 9, and nuts 8 are arranged at two ends of each threaded rod 7;
when the drill pipe 1 and the drill rod are required to be carried, a user firstly sleeves the first locking ring 41 and the second locking ring 42 on the surface of the drill pipe 1, selects a proper position between the drill bit 2 and the connector 3 according to different product sizes, when the drill rod is required to be fixed, firstly, the clamping block 55 at the lower end of the symmetrical lower clamping block 51 is aligned with the through hole of the locking block 43 arranged at the lower end of the first locking ring 41 and the lower end of the second locking ring 42, firstly, the threaded rod 7 penetrates through the through hole 9 of the locking block 43 and the clamping block 55 at the lower end, the nut 8 is sleeved at two ends of the threaded rod 7, and the nut is screwed to be in a non-contact state with the outer wall of the clamping block 55, namely, at the moment, the lower clamping block 51 and the upper clamping block 54 are in clearance fit with the outer walls of the first locking ring 41 and the second locking; then a user holds the cotton sleeves on the surface of the pull rod 6 to pull up the upper clamping block 54, the upper clamping block 54 can be opened and closed through the hinge 53, the upper clamping block 54 is opened, the bayonet 52 is changed from an annular shape to a semi-annular shape at the moment, drill rods to be carried are placed in the bayonet 52, finally the clamping blocks 55 at the upper ends of the symmetrical upper clamping blocks 54 are aligned with the through holes 9 of the locking blocks 43 arranged at the upper ends of the first locking ring 41 or the second locking ring 42, the bayonet 52 is closed to form an annular structure, the drill rods are clamped in the bayonet 52, the clamping devices 5 are arranged on two sides of the locking device 4, so that three drill rods can be carried simultaneously, then the threaded rod 7 penetrates through the locking blocks 43 at the upper ends and the through holes 9 of the clamping blocks 55, and nuts 8 sleeved on the threaded rods 7 at the upper end and the lower end are synchronously screwed, so that the nuts 8 are extruded and, if the lower nut 8 is inconvenient to screw, a user can firstly use the hoisting device to place the drill rod or the drill pipe 1 on the bracket for installation and fixation; thereby can fix first locking ring 41, the surface at drill pipe 1 is fixed to second locking ring 42, and simultaneously, can also fix fixture block 54 and lower fixture block 51 on the surface at first locking ring 41 or second locking ring 42, thereby can prevent the upset of fixture block 54, avoid the condition of drilling rod from the inside roll-off of bayonet 52 to appear, and then, cooperation through locking device 4 and chucking device 5, locking device 4 can lock fixedly by a drill pipe 1, chucking device 5 can fix the drilling rod locking at the lateral wall of drill pipe 1, thereby be convenient for the carrier to carry fast drill pipe 1 and with many drilling rods of drill pipe 1 complex, thereby solved current drilling rod or drill pipe 1 and only can singly carry, it is convenient inadequately to carry, and the phenomenon that efficiency is not high.
As an embodiment of the present invention, the locking device 4 further includes a pressing ring 44, an elastic cavity ring 45 and a positioning fixture 46; counter bores 431 are formed in the outer surfaces of the locking blocks 53 symmetrically arranged on the upper end surface and the lower end surface, and extrusion rings 44 are slidably mounted in the counter bores 431; an elastic cavity ring 45 is arranged between the inner side surface of the extrusion ring 44 and the counter bore 431; a diversion cavity 411 is formed in the first locking ring 41 and the second locking ring 42, and the diversion cavity 411 is communicated into the elastic cavity ring 45 through a diversion groove 421; positioning grooves 422 are symmetrically formed in the outer side surfaces of the first locking ring 41 and the second locking ring 42, and positioning blocks 46 are slidably connected in the positioning grooves 422 through elastic hoses 47; the outer wall of the elastic hose 47 is sleeved with a spring, and the elastic hose 47 is communicated with the diversion trench 421; the inner cavity walls of the lower fixture block 51 and the upper fixture block 54 are symmetrically provided with positioning clamp grooves 541, and the positioning clamp grooves 541 are aligned with the positioning grooves 422; the outer wall of the extrusion ring 44 is provided with an elastic extrusion piece 6, and the other end of the elastic extrusion piece 6 is in extrusion contact with the inner side surface of the clamping block 55; hydraulic oil is filled in the elastic cavity ring 45 and the flow guide cavity 411;
during operation, when vertically symmetrical card fixed block 55 aligns with locking block 53, the outer end of elastic extrusion piece 6 is in contact with the inner side wall of card fixed block 55 at this moment, when nut 8 rotates constantly to extrude card fixed block 55, the card fixed block 55 can extrude extrusion ring 44 through elastic extrusion piece 6 at this moment, make extrusion ring 44 move towards countersunk hole 431 inside, thereby make extrusion ring 44 extrude elastic cavity ring 45, make the inside hydraulic oil of elastic cavity ring 45 enter into diversion chamber 411 through diversion trench 421, the inside hydraulic oil of diversion chamber 411 can enter into elastic hose 47, thereby make elastic hose 47 extend and drive location fixture block 46 from the interior incomplete roll-off of constant head tank 422, the spring that cup joints on elastic hose 47 at this moment is in the tensile state, the part of location fixture block 46 roll-off can slide into location draw-in groove 541, thereby make a plurality of location fixture blocks 46 can be connected to lower fixture block 51, The upper clamping block 54 and the inner walls between the first locking ring 41 and the second locking ring 42 can play a role of tension support for the lower clamping block 51 and the upper clamping block 54, so that the phenomenon that when a plurality of users lift the drill rod and the drill pipe 1 through the pull rod 56, the tension of the pull rod 56 on the upper clamping block 54 directly acts on the threaded rod 7 due to the vertical downward gravity of the drill rod, the threaded rod 7 is damaged, and the service lives of the locking device 4 and the clamping device 5 are influenced; when the drill rod and the locking device 4 and the clamping device 5 of the drill pipe 1 need to be detached, the nut 8 is rotated reversely by a user, the clamping block 55 is enabled to be separated from the extrusion of the elastic extrusion piece 6, so that the extrusion ring 44 slides towards the outside of the counter sink 431 under the elastic tension of the spring sleeved on the outer wall of the elastic hose 47 and the elastic thrust of the spring sleeved on the outer wall of the elastic cavity ring 45, the tension of the extrusion ring 44 and the compression force of the positioning fixture block 46 are enabled to guide the hydraulic oil in the elastic hose 47 into the elastic cavity ring 45 expanded by stretching through the guide groove 421 and the guide groove 421, the positioning fixture block 46 is enabled to be contracted into the positioning groove 422, and the locking device 4 and the clamping device 5 are enabled to be separated conveniently.
As an embodiment of the present invention, the elastic pressing member 6 is provided in a sleeve shape, and the sleeve-shaped elastic pressing member 6 includes a metal ring 61 and an elastic bellows 62; the sleeve-like elastic extrusion 6 slides over the outer wall of the threaded rod 7; a positioning hole 551 is formed in the inner side wall of the clamping block 55, and the positioning hole 551 is aligned with the counter bore 431; the counter bore 431, the positioning hole 551 and the through hole 9 are coaxial; metal rings 61 are fixed at two ends of the elastic corrugated pipe 62, the metal ring 61 at one end of the elastic corrugated pipe 62 is connected with the extrusion ring 44, and the metal ring 61 at the other end of the elastic corrugated pipe 62 is inserted into the positioning hole 551; in operation, the elastic corrugated pipe 62 is in the middle of the elastic extruded part 6 both ends that set up is becket 61, the extrusion force of card piece 55 can be preceeded and is made elastic corrugated pipe 62 produce the compression, when elastic corrugated pipe 62 compressed to the biggest limit, the continuation of nut 8 is twisted and is extruded extrusion ring 44 through elastic extruded part 6 after compressing, thereby be convenient for extrusion ring 44 can remove, and elastic extruded part 6 after the compression can play the effect of elastic buffer between card piece 55 and locking piece 43, effectively prevent when drilling rod and drill pipe 1 produce when the transportation rock, and because threaded rod 7 inserts in through-hole 9, and non-threaded connection, thereby lead to producing between card piece 55 and the locking piece 43 and rock or produce the phenomenon of displacement, thereby influence the stable connection between chucking device 5 and the locking device 4.
As an embodiment of the present invention, an annular cavity 621 is formed inside the elastic corrugated tube 62, and a spiral spring 63 with a square cross section is sleeved in the annular cavity 621; during operation, the inside cross-section that sets up of elasticity bellows 62 is square coil spring 63, when elasticity bellows 62 received the becket 61 compression at both ends, becket 61 can take the lead to the cross-section to compress for square coil spring 63, make the cross-section be square coil spring 63 and can contract in elasticity bellows 62, make the coincide between the square ring of coil spring 63 form the stereoplasm ring cover, thereby improve the intensity and the rigidity of elasticity bellows 62, effectively prevent to produce the phenomenon of warping because elasticity bellows 62 volume of compression is too big, thereby influence the stable extrusion of elasticity extruded piece 6 to extrusion ring 44.
As an embodiment of the invention, the inner surfaces of the first locking ring 41 and the second locking ring 42 are connected with the outer side of the drill pipe 1 in a sliding way, and the first locking ring 41 and the second locking ring 42 have the same size; during operation, the first locking ring 41 and the second locking ring 42 are sleeved on the surface of the drill pipe 1, and meanwhile, the positions of the first locking ring 41 and the second locking ring 42 can be adjusted between the drill bit 2 and the connector 3 according to different product sizes, so that the drill pipe is suitable for drill rods with different sizes.
As an embodiment of the present invention, the upper end of the upper latch 54 is connected with a pull rod 56, and the surface of the pull rod 56 is provided with a cotton sleeve; in operation, the pull rod 56 can be pulled to pull the upper clamping block 54, and the palm injury caused by frequent friction between the hand and the pull rod 6 can be avoided by arranging the cotton sleeve.
The working process is as follows:
when the drill pipe 1 and the drill rod are required to be carried, a user firstly sleeves the first locking ring 41 and the second locking ring 42 on the surface of the drill pipe 1, selects a proper position between the drill bit 2 and the connector 3 according to different product sizes, when the drill rod is required to be fixed, firstly, the clamping block 55 at the lower end of the symmetrical lower clamping block 51 is aligned with the through hole of the locking block 43 arranged at the lower end of the first locking ring 41 and the lower end of the second locking ring 42, firstly, the threaded rod 7 penetrates through the through hole 9 of the locking block 43 and the clamping block 55 at the lower end, the nut 8 is sleeved at two ends of the threaded rod 7, and the nut is screwed to be in a non-contact state with the outer wall of the clamping block 55, namely, at the moment, the lower clamping block 51 and the upper clamping block 54 are in clearance fit with the outer walls of the first locking ring 41 and the second locking; then a user holds the cotton sleeves on the surface of the pull rod 6 to pull up the upper clamping block 54, the upper clamping block 54 can be opened and closed through the hinge 53, the upper clamping block 54 is opened, the bayonet 52 is changed from an annular shape to a semi-annular shape at the moment, drill rods to be carried are placed in the bayonet 52, finally the clamping blocks 55 at the upper ends of the symmetrical upper clamping blocks 54 are aligned with the through holes 9 of the locking blocks 43 arranged at the upper ends of the first locking ring 41 or the second locking ring 42, the bayonet 52 is closed to form an annular structure, the drill rods are clamped in the bayonet 52, the clamping devices 5 are arranged on two sides of the locking device 4, so that three drill rods can be carried simultaneously, then the threaded rod 7 penetrates through the locking blocks 43 at the upper ends and the through holes 9 of the clamping blocks 55, and nuts 8 sleeved on the threaded rods 7 at the upper end and the lower end are synchronously screwed, so that the nuts 8 are extruded and, if the lower nut 8 is inconvenient to screw, a user can firstly use the hoisting device to place the drill rod or the drill pipe 1 on the bracket for installation and fixation; thereby can fix first locking ring 41, the surface at drill pipe 1 is fixed to second locking ring 42, and simultaneously, can also fix fixture block 54 and lower fixture block 51 on the surface at first locking ring 41 or second locking ring 42, thereby can prevent the upset of fixture block 54, avoid the condition of drilling rod from the inside roll-off of bayonet 52 to appear, and then, cooperation through locking device 4 and chucking device 5, locking device 4 can lock fixedly by a drill pipe 1, chucking device 5 can fix the drilling rod locking at the lateral wall of drill pipe 1, thereby be convenient for the carrier to carry fast drill pipe 1 and with many drilling rods of drill pipe 1 complex, thereby solved current drilling rod or drill pipe 1 and only can singly carry, it is convenient inadequately to carry, and the phenomenon that efficiency is not high.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. An oil drill pipe comprising a drill pipe (1), characterized in that: one end of the drill pipe (1) is connected with a drill bit (2), and the other end of the drill pipe (1) is provided with a connector (3); the surface of the drill pipe (1) is provided with a locking device (4), and two sides of the locking device (4) are respectively provided with a clamping device (5); the locking device (4) comprises a first locking ring (41), a second locking ring (42) and a locking block (43); the upper end surface and the lower end surface of the first locking ring (41) and the second locking ring (42) are respectively provided with a locking block (43), and the locking blocks (43) are positioned at the end parts of the first locking ring (41) and the second locking ring (42); clamping devices (5) are connected to the surfaces of the two sides of the first locking ring (41) and the second locking ring (42);
the clamping device (5) comprises a lower clamping block (51), a bayonet (52), a hinge (53), an upper clamping block (54), a clamping block (55) and a pull rod (56); a bayonet (52) is formed between the inner walls of the lower fixture block (51) and the upper fixture block (54), and the size of the drill pipe (1) is matched with the bayonet (52); the joint of the upper end surface of the lower fixture block (51) and the lower end surface of the upper fixture block (54) is rotatably connected through a hinge (53); clamping blocks (55) are arranged at the lower end of the lower clamping block (51) and the upper end of the upper clamping block (54); the upper end of the upper clamping block (54) is connected with a pull rod (56), and the surface of the pull rod (56) is provided with a cotton sleeve; through holes (9) are formed in the surfaces of the locking block (43) and the clamping block (55), a threaded rod (7) is arranged inside the through hole (9), and nuts (8) are arranged at two ends of the threaded rod (7).
2. An oil drill pipe according to claim 1, characterized in that: the locking device (4) further comprises a squeezing ring (44), an elastic cavity ring (45) and a positioning fixture block (46); counter bores (431) are formed in the outer surfaces of the locking blocks (53) which are symmetrically arranged on the upper end surface and the lower end surface, and extrusion rings (44) are slidably mounted in the counter bores (431); an elastic cavity ring (45) is arranged between the inner side surface of the extrusion ring (44) and the counter sink (431); a diversion cavity (411) is formed in the first locking ring (41) and the second locking ring (42), and the diversion cavity (411) is communicated into the elastic cavity ring (45) through a diversion groove (421); positioning grooves (422) are symmetrically formed in the outer side surfaces of the first locking ring (41) and the second locking ring (42), and positioning clamping blocks (46) are connected in the positioning grooves (422) in a sliding mode through elastic hoses (47); the outer wall of the elastic hose (47) is sleeved with a spring, and the elastic hose (47) is communicated with the diversion trench (421); the inner cavity walls of the lower fixture block (51) and the upper fixture block (54) are symmetrically provided with positioning clamp grooves (541), and the positioning clamp grooves (541) are aligned with the positioning grooves (422); an elastic extrusion piece (6) is arranged on the outer wall of the extrusion ring (44), and the other end of the elastic extrusion piece (6) is in extrusion contact with the inner side surface of the clamping block (55); the elastic cavity ring (45) and the flow guide cavity (411) are filled with hydraulic oil.
3. An oil drill pipe according to claim 2, characterized in that: the elastic extrusion part (6) is arranged in a sleeve shape, and the sleeve-shaped elastic extrusion part (6) comprises a metal ring (61) and an elastic corrugated pipe (62); the sleeve-shaped elastic extrusion piece (6) slides on the outer wall of the threaded rod (7); the inner side wall of the clamping block (55) is provided with a positioning hole (551), and the positioning hole (551) is aligned with the counter bore (431); the counter bore (431), the positioning hole (551) and the through hole (9) are coaxial; and metal rings (61) are fixed at two ends of the elastic corrugated pipe (62), the metal ring (61) at one end of the elastic corrugated pipe (62) is connected with the extrusion ring (44), and the metal ring (61) at the other end of the elastic corrugated pipe (62) is inserted into the positioning hole (551).
4. An oil drill pipe according to claim 3, characterized in that: an annular cavity (621) is formed in the elastic corrugated pipe (62), and a spiral spring (63) with a square cross section is sleeved in the annular cavity (621).
5. An oil drill pipe according to claim 1, characterized in that: the inner surfaces of the first locking ring (41) and the second locking ring (42) are in sliding connection with the outer side of the drill pipe (1), and the first locking ring (41) and the second locking ring (42) are the same in size.
6. An oil drill pipe according to claim 1, characterized in that: the upper end of the upper clamping block (54) is connected with a pull rod (56), and the surface of the pull rod (56) is provided with a cotton sleeve.
CN202110115318.4A 2021-01-28 2021-01-28 Petroleum drill pipe Active CN112901087B (en)

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Application Number Priority Date Filing Date Title
CN202110115318.4A CN112901087B (en) 2021-01-28 2021-01-28 Petroleum drill pipe

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CN202110115318.4A CN112901087B (en) 2021-01-28 2021-01-28 Petroleum drill pipe

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CN112901087B CN112901087B (en) 2023-08-25

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2496102A1 (en) * 1999-10-08 2001-04-08 Tesco Corporation Casing clamp
US6311792B1 (en) * 1999-10-08 2001-11-06 Tesco Corporation Casing clamp
CN201934038U (en) * 2010-12-22 2011-08-17 石家庄中煤装备制造股份有限公司 Symmetrical type drilling rod clamping mechanism
CN110454094A (en) * 2019-08-29 2019-11-15 安徽理工大学 A kind of drill bit detaching structure of concrete sampler
CN210659997U (en) * 2019-10-23 2020-06-02 傅为勇 Oil drill pipe clamping device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2496102A1 (en) * 1999-10-08 2001-04-08 Tesco Corporation Casing clamp
US6311792B1 (en) * 1999-10-08 2001-11-06 Tesco Corporation Casing clamp
CN201934038U (en) * 2010-12-22 2011-08-17 石家庄中煤装备制造股份有限公司 Symmetrical type drilling rod clamping mechanism
CN110454094A (en) * 2019-08-29 2019-11-15 安徽理工大学 A kind of drill bit detaching structure of concrete sampler
CN210659997U (en) * 2019-10-23 2020-06-02 傅为勇 Oil drill pipe clamping device

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