CN110227835B

CN110227835B - Pipeline opening device and using method thereof

Info

Publication number: CN110227835B
Application number: CN201910301551.4A
Authority: CN
Inventors: 黄晓明
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2021-08-20
Anticipated expiration: 2039-04-15
Also published as: CN110227835A

Abstract

The invention discloses a pipeline opening device and a using method thereof, the pipeline opening device comprises an opening drill body and a pipeline opening drill, the pipeline opening drill comprises a first drill bit, a first cutting head is arranged at the first end of the first drill bit, a first connecting head is arranged at the second end of the first drill bit, a raised clamping thread is arranged on the circumference of the first drill bit between the first cutting head and the first connecting head, and the major diameter of the clamping thread is larger than the outer diameter of the first cutting head. Through the setting of joint screw thread for the drilling that first drill bit can pass in and out the pipeline, the drilling is held to the card simultaneously, the opening bores the body and includes rotation power mechanism and propulsion power mechanism and drilling rod, rotation power mechanism drive the drilling rod is rotatory, propulsion power mechanism drive the drilling rod removes.

Description

Pipeline opening device and using method thereof

Technical Field

The invention relates to the field of pipeline opening, in particular to a pipeline opening device and a using method thereof.

Background

The use of pipelines is quite common, such as tap water pipelines, sewage pipelines and the like, and various branch ports are required to be arranged on the pipelines and valves and the like are required to be installed due to the use requirement, but because the pipelines which are relatively long in part of the ages are water supply pipelines in the nineties of the last century, the water supply operation is required to be stopped when the pipelines are maintained and the branch ports are arranged.

Therefore, the invention provides an open drill which realizes the operation without stopping water, but the open drill is divided into two parts, the first part is a drill bit with the traction function, the back of the drill bit is provided with a back-off mechanism which can be opened under the action of gravity or other elastic mechanisms after the drill bit firstly passes through the interior of the pipeline, so that the bit for traction is stuck and cannot be pulled out at this time, a large bit for cutting the pipe is continuously used to open the pipe, and then the chips are taken out by the bit for traction, however, this structure has a problem, the back-off is formed after the traction drill bit passes through and can not be taken out, if the large drill bit for cutting the pipeline has problems and needs to be taken out, due to the back-off of the traction drill bit, therefore, the drill bit cannot be taken out, and finally, the drill bit forming the reverse buckle can be taken out through more complicated steps, so that the construction cost and the difficulty are increased.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a pipeline opening device and a using method thereof, which can clamp a pipeline opening drill and can be conveniently taken out.

The technical scheme is as follows:

pipeline opening bores, including first drill bit, the first end of first drill bit is provided with first cutting head, the second end of first drill bit is provided with first connector, first drill bit is in first cutting head with be provided with bellied joint screw thread on the circumference between the first connector, the major diameter of joint screw thread is greater than the external diameter of first cutting head.

The first drill bit is in the external diameter size of the left and right sides of joint screw thread is the same.

The first end periphery of the first drill bit is provided with a chip groove, the chip groove is spirally wound, one end of the chip groove extends to the chip surface of the first cutting head, and the other end of the chip groove penetrates through the clamping thread.

The chip groove is close to the distance of the terminal surface of first connector one end to joint screw thread is first size along the axial, first size is 0 to 3 mm.

The small diameter of the clamping thread is smaller than or equal to the outer diameter of the first cutting head.

The circumferential surface of the first connector is provided with a circumferential clamping position.

Still include the second drill bit the first end of second drill bit is provided with the second cutting head, the second end of second drill bit is provided with the second connector, second connector fixed connection be in between first connector and the joint screw thread.

Still include the connecting piece, the connecting piece is provided with first connection position, second connection position and third connection position, the second connection position is the ring flange, the through-hole has been seted up on the ring flange, and the second connection position passes through the nail body the through-hole and with the second connector is connected, fixes the second drill bit, first connection position with first connector is connected.

First connector the circumference screens is square structure, first connection position bottom fixed mounting has the mounting, the mounting middle part seted up with circumference screens assorted joint through-hole, the joint through-hole with the circumference screens cooperatees.

One side that the circumference screens is close to first connector terminal surface is provided with the axial screens, the axial screens supports tightly the terminal surface of mounting.

The first connector terminal surface with be provided with the external screw thread between the axial screens, first connection position inside is provided with the internal thread, first connector is twisted into through the screw on the first connection position.

The pipeline opening device comprises an opening drill body, the first drill bit, the second drill bit and a connecting piece, wherein the opening drill body comprises a rotating power mechanism, a propelling power mechanism and a drill rod, the rotating power mechanism drives the drill rod to rotate, the propelling power mechanism drives the drill rod to move, and the extending end part of the drill rod is connected with the third connecting position.

The rotary power mechanism comprises a rotary motor and a speed change mechanism, wherein the power input end of the speed change mechanism is connected with the rotary shaft of the rotary motor, and the power output end of the speed change mechanism is connected with the drill rod.

And a sealing piece is arranged at the power output end of the speed change mechanism, and a sealing ring is arranged on the sealing piece.

The speed change mechanism comprises a worm wheel and a worm, the worm is connected with a rotating shaft of the rotating motor, and the worm wheel is fixedly connected with the drill rod.

The propelling power mechanism comprises a power source, a screw rod and a supporting rod, the power output end of the power source is connected with the screw rod, a supporting frame is fixedly connected to a sliding piece of the screw rod, the supporting frame is rotatably connected with the drill rod, and the supporting frame is slidably connected with the supporting rod.

The power source comprises a power rod, a first handle, a propelling motor and a clutch, the first end of the power rod is in fit transmission with the lead screw through a gear, the second end of the power rod is fixedly connected with the first handle, and the motor is connected with the power rod through the clutch.

And a sealing element is arranged on one side of the power rod, which faces the drill rod, and a sealing ring is arranged on the sealing element.

The clutch includes first fitting piece and second fitting piece, first fitting piece fixed connection is on the power rod, the second fitting piece with the motor is connected and rotationally overlaps and is established on the power rod, the second fitting piece includes the sliding block, the sliding block with first fitting piece card is held or is loosened.

The first fitting piece is provided with the joint recess, the sliding block with first fitting piece matched with one side is provided with the joint arch, the joint recess with the protruding looks joint of joint.

The outer peripheral surface of the sliding block is provided with an annular groove, and a second handle is arranged in cooperation with the annular groove.

The top of the opening drill body is also provided with an end cover which is fixedly connected with the nail body.

The power rod is connected with a first gear, a second gear is connected onto the power rod, and the first gear is matched with the second gear.

The use method of the pipeline opening drill comprises the following steps,

the opening drill body rotates at a high speed to drive the first drill bit to rotate;

the cutting head of the first drill bit cuts a pipeline, the pipeline is opened, and the pipeline is clamped with the pipeline with the threaded drilling opening;

the first drill bit stops rotating, the major diameter of the clamping thread is larger than the caliber of the opening of the pipeline, and the clamping thread is clamped at the opening of the pipeline;

the first drill bit is pulled out outwards, and the clamping threads drive the clamped pipeline opening fragments to move outwards.

It should be noted that:

the foregoing "first, second, and third … …" do not denote any particular quantity or order, but rather are used merely to distinguish one name from another.

The following illustrates the advantages or principles of the invention:

1. the pipeline opening drill comprises a first drill bit, a first cutting head and a first connector are arranged on the first drill bit respectively, the first connector is used for cutting a pipeline, a clamping thread between the first cutting head and the first connector plays a clamping role, firstly, the first drill bit drills through the cutting head, then the first drill bit rotates to continue feeding, so that the clamping thread forms a cutting thread in a hole drilled out by the pipeline, when the first drill bit needs to be taken out, the clamping thread has a larger diameter than the outer diameter of the first cutting head, namely, the hole diameter drilled out by the pipeline, so that the first drill bit cannot penetrate through the hole drilled out by the pipeline under the condition of irrotational rotation, and can be screwed out through the rotating mode, the dead clamping condition of the first drill bit in the prior art is avoided, and therefore, the clamping can be realized and the first drill bit can be taken out conveniently.

2. The chip groove can discharge the chips of the first cutting head, penetrate through the clamping thread, discharge the chips of the clamping thread, and prevent the clamping thread from being locked.

3. The first size is 0-3 mm, because of manufacturing errors, vibration in the using process and the like, the chip grooves are easy to scrape and rub the wall of the drilled hole of the pipeline, the thickness of the pipeline is usually more than 5mm, the first size is set to be smaller, after the clamping threads also penetrate through the drilled hole of the pipeline, the scraping and rubbing size of the chip grooves on the wall of the hole is smaller than the size of the threads of the pipeline, and therefore the effect of the threads cannot be influenced.

4. The path of joint screw thread is less than or equal to the external diameter of first cutting head, so can be more convenient when tapping, and in addition, the external diameter size of first drill bit in the left and right sides of joint screw thread is the same, and the joint screw thread of first drill bit can also play the effect of stabilizing the axle center after passing the pipeline.

5. The circumferential surface of the first connector is provided with a circumferential clamping position, and the first drill bit can not slip during drilling through the circumferential clamping position.

6. The second drill bit is arranged and connected and fixed between the first connecting head and the clamping threads, the pipeline is drilled through the small drill bit to clamp the hole, then the second drill bit is used for cutting a large hole, and after the opening of the second drill bit is finished, the pipeline forms a large waste material, so that the pipeline is clamped under the action of the clamping threads of the first drill bit and then is drawn out.

7. Still be provided with the connecting piece, first connecting piece cooperates with the first connector of first drill bit, and the second junction is connected with the second connector, and specific second junction is the ring flange, carries out fixed connection through ring flange and second connector, and the shearing force when having reduced drilling more is favorable to increasing the life of second drill bit and connecting piece, can follow the nail body of trading through the connection of the nail body moreover.

8. The circumference screens of first connector is square structure, fixes through the many mountings in first connector position bottom, and through joint through-hole and circumference screens cooperation, the circumference screens of the first drill bit of stable realization moreover.

9. One side that the circumference screens is close to first connector terminal surface is provided with the axial screens, fixes on the terminal surface of mounting through the axial screens, so realized the axial screens, has prevented that first drill bit from taking place axial displacement when rotating.

10. The first connector is further provided with an external thread which is matched with the internal thread of the first connecting position, the first connecting position is connected in a screwing mode, and then the first connecting position is matched with the circumferential clamping position in an axial clamping mode, so that the overall fixing effect is firmer.

11. The pipeline opening device is characterized in that a drill rod of an opening drill body is fixed on a third connecting position of the connecting piece, the rotating power mechanism drives the drill rod to rotate, the propelling power mechanism propels the drill rod, the rotating power mechanism and the propelling power mechanism are independent, and the rotating power mechanism and the propelling power mechanism do not interfere with each other in work.

12. The rotary power mechanism comprises a rotary motor and a speed change mechanism, the power input end of the speed change mechanism is connected with a rotary shaft of the rotary motor to provide power, and then the output end of the speed change mechanism is connected with the drill rod, so that the power can be transmitted to the drill rod, the drill rod is prevented from being directly driven by the rotary motor, and speed change cannot be achieved.

13. The worm wheel and the worm of the speed change mechanism realize transmission through the matching between the worm wheel and the worm, the transmission ratio is large, the structure is relatively compact, and in addition, the movement steering is realized through the transmission between the worm wheel and the worm.

14. The power source and the lead screw and the bracing piece that propulsion power unit includes provide power through the power source, then the lead screw is given in the transmission, the cooperation of lead screw rethread slider, the transmission is to the support frame on for the support frame can reciprocate, consequently, the transmission of lead screw can avoid the drilling rod directly to cooperate with the power source, the pipeline opening device who causes is more elongated on the whole, is not convenient for use and transportation.

15. The encoder that sets up is connected with first gear on the encoder, is connected with the second gear on the power rod, cooperatees through first gear and second gear, then the encoder acquires data, can show first drill bit and second drill bit position and operating condition on the display screen after the data transmission conversion.

16. The power transmission and power rod of the speed change mechanism are both provided with sealing parts, the sealing parts are provided with sealing rings, and the rotating power mechanism and the propelling power mechanism are both isolated from the main body part of the opening drill body through the matching of the sealing parts and the sealing rings, so that the waterproof effect is realized.

17. The end cover is arranged at the top of the opening drill body and fixed through the nail body, when the propelling power mechanism breaks down, the nail body for fixing the end cover can be unscrewed, then the end cover is opened, and then the propelling power mechanism is manually operated to be taken out, so that the blocking condition is avoided.

Drawings

FIG. 1 is a front view of a first drill bit of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a first drill bit according to an embodiment of the present invention;

FIG. 3 is a front view of a pipe opening device according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a pipe opening device according to an embodiment of the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 4;

FIG. 6 is an enlarged view of the structure at B in FIG. 4 according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a propulsion power unit according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a connector according to an embodiment of the present invention.

Description of reference numerals:

10. 11, a first cutting head; 12. a first connector; 13. clamping threads; 14. chip cutting grooves; 15. circumferentially clamping; 16. axial clamping; 20. a second drill bit; 21. a second cutting head; 22. a second connector; 30. a connecting member; 31. a first connection site; 32. a second connection bit; 33. a third connection site; 34. a fixing member; 341. clamping the through hole; 40. an open drill body; 41. a drill stem; 42. a rotary power mechanism; 421. a rotating electric machine; 422. a speed change mechanism; 43. a propulsion power mechanism; 431. a power rod; 432. a first handle; 433. a propulsion motor; 434. a clutch; 4341. a first mating member; 43411. clamping the groove; 4342. a second mating member; 43421. a slider; 43422. clamping the bulges; 43423. an annular groove; 4343. a second handle; 435. a screw rod; 436. a support bar; 437. a support frame; 438. a slider; 44. an encoder; 45. a first gear; 46. a second gear; 47 end caps; 50 a seal member; 51 sealing ring.

Detailed Description

The following provides a detailed description of embodiments of the invention.

As shown in fig. 1 and 2, the pipe opening drill includes a first drill 10, a first cutting head 11 is disposed at a first end of the first drill 10, a first connection head 12 is disposed at a second end of the first drill 10, a raised clamping thread 13 is disposed on a circumference between the first cutting head 11 and the first connection head 12, a major diameter of the clamping thread 13 is greater than an outer diameter of the first cutting head 11, and specifically, the outer diameters of the left side and the right side of the clamping thread 13 are the same for the first drill 10. Chip groove 14 has been seted up to the first end periphery of first drill bit 10, chip groove 14 is the heliciform winding, chip groove 14 one end extends to the smear metal face of first cutting head 11, and the other end passes joint screw thread 13, chip groove 14 is close to the terminal surface of first connecting head 12 one end is first size along the axial distance to joint screw thread 13, first size is 0 to 3 mm. The minor diameter of the clamping thread 13 is smaller than or equal to the outer diameter of the first cutting head 11. The circumferential surface of the first connector 12 is provided with a circumferential detent 15.

As shown in fig. 3 to 6 and 8, the pipe opening drill further includes a second drill bit 20 and a connector 30, a second cutting head 21 is disposed at a first end of the second drill bit 20, a second connector 22 is disposed at a second end of the second drill bit 20, the second connector 22 is fixedly connected between the first connector 12 and the clamping thread 13, the connector 30 is provided with a first connection position 31, a second connection position 32 and a third connection position 33, the second connection position 32 is a flange, a through hole is formed in the flange, the second connection position 32 passes through the through hole through a nail body and is connected with the second connector 22 to fix the second drill bit 20, the first connection position 31 is connected with the first connector 12, and the third connection position 33 is fixed with the drill rod 41 through the nail body perpendicular to the axis of the drill rod 41 after being connected with the drill rod 41.

As shown in fig. 2 and 6, first connector 12 circumference screens 15 is square structure, first connection position 31 bottom fixed mounting has mounting 34, mounting 34 middle part seted up with circumference screens 15 assorted joint through-hole 341, joint through-hole 341 with circumference screens 15 cooperatees, one side that circumference screens 15 is close to first connector 12 terminal surface is provided with axial screens 16, axial screens 16 supports tightly the terminal surface of mounting 34, first connector 12 terminal surface with be provided with the external screw thread between the axial screens 16, the inside internal thread that is provided with of first connection position 31, first connector 12 screws into through the screw thread on the first connection position 31.

As shown in fig. 3 to 7, the pipe opening device, which comprises an opening drill body 40 and the aforementioned first drill 10, second drill 20 and connecting member 30, the split drill body 40 comprises a rotary power mechanism 42 and a propulsion power mechanism 43 and a drill rod 41, the rotary power mechanism 42 drives the drill rod 41 to rotate, the propulsion power mechanism 43 drives the drill rod 41 to move, the extended end of the drill rod 41 is connected to the third connecting position 33, the rotary power mechanism 42 includes a rotary motor 421 and a speed change mechanism 422, a power input end of the speed change mechanism 422 is connected to a rotating shaft of the rotating electrical machine 421, the power output end of the speed change mechanism 422 is connected with the drill rod 41, the speed change mechanism 422 comprises a worm wheel and a worm, the worm is connected with a rotating shaft of the rotating motor 421, and the worm wheel is fixedly connected with the drill rod 41.

The propelling power mechanism 43 comprises a power source, a screw rod 435 and a support rod 436, the power output end of the power source is connected with the screw rod 435, a support frame 437 is fixedly connected to a sliding part 438 of the screw rod 435, the support frame 437 is rotatably connected with the drill rod 41, the support frame 437 is slidably connected with the support rod 436, the power source comprises a power rod 431, a first handle 432, a propelling motor 433 and a clutch 434, the first end of the power rod 431 is in fit transmission with the screw rod 435 through a gear, the second end of the power rod is fixedly connected with the first handle 432, the motor is connected with the power rod 431 through the clutch 434, the clutch 434 comprises a first fitting piece 4341 and a second fitting piece 4342, the first fitting piece 4341 is fixedly connected to the power rod 431, the second fitting piece 4342 is connected with the motor and rotatably sleeved on the power rod 431, the second fitting member 4342 comprises a sliding block 43421, the sliding block 43421 and the first fitting member 4341 are clamped or released, the first fitting member 4341 is provided with a clamping groove 43411, one side of the sliding block 43421 matched with the first fitting member 4341 is provided with a clamping protrusion 43422, and the clamping groove 43411 and the clamping protrusion 43422 are clamped. An annular groove 43423 is formed in the outer peripheral surface of the sliding block 43421, and a second handle 4343 is arranged in cooperation with the annular groove 43423.

The power rod 431 is provided with a sealing member 50 facing the drill rod 41 and the power output end of the speed change mechanism 422, and a sealing ring 51 is mounted on the sealing member 50.

The top of the open drill body 40 is also provided with an end cover 47, and the end cover 47 is fixedly connected with the nail body.

As shown in fig. 7, the device further comprises an encoder 44, wherein a first gear 45 is connected to the encoder 44, a second gear 46 is connected to the power rod 431, and the first gear 45 is matched with the second gear 46.

In addition, a bearing is installed at the connecting position of the rotating fit.

The use method of the pipeline opening drill comprises the following steps,

the open drill body 40 rotates at a high speed to drive the first drill bit 10 to rotate;

the cutting head of the first drill bit 10 cuts a pipeline, the pipeline is opened, and the clamping thread 13 drills the opened pipeline;

the first drill bit 10 stops rotating, the major diameter of the clamping thread 13 is larger than the caliber of the opening of the pipeline, and the clamping thread 13 is clamped at the opening of the pipeline;

the first drill bit 10 is pulled out, and the clamping threads 13 drive the clamped pipeline opening fragments to move outwards.

Advantages and principles of the present embodiment:

1. the pipe opening drill includes a first drill 10, on which first drill 10 a first cutting head 11 and a first connection head 12 are respectively provided, the first connection head 12 being used for cutting a pipe, while the bayonet thread 13 between the first cutting head 11 and the first coupling head 12, which serves as a bayonet, first drills a hole through the cutting head, and then the rotating first drill 10 continues to feed, the clamping thread 13 forms a cut thread in the hole drilled by the pipeline, when the first drill bit 10 needs to be taken out, because the major diameter of the clamping thread 13 is larger than the outer diameter of the first cutting head 11, namely the hole diameter drilled by the pipeline, the first drill bit 10 is a hole that cannot be drilled through a pipe without rotating, but can be screwed out in a rotating manner, so that the first drill bit 10 is prevented from being locked in the prior art, and the first drill bit 10 can be conveniently taken out while being clamped.

2. The chip groove 14 is provided to discharge chips of the first cutting head 11, penetrate the clamp thread 13 to discharge chips of the clamp thread 13, and prevent the clamp thread 13 from being locked.

3. The first size is 0-3 mm, due to manufacturing errors, vibration in the using process and the like, the chip groove 14 is easy to scrape and rub the wall of the hole drilled in the pipeline, the thickness of the pipeline is usually more than 5mm, the first size is set to be smaller, after the clamping thread 13 also penetrates through the hole drilled in the pipeline, the scraping and rubbing size of the chip groove 14 on the wall of the hole is smaller than the size of the thread of the pipeline, and therefore the effect of the thread cannot be influenced.

4. The path of joint screw thread 13 is less than or equal to the external diameter of first cutting head 11, so can be more convenient when tapping, and in addition, the external diameter size of first drill bit 10 in the left and right sides of joint screw thread 13 is the same, and joint screw thread 13 of first drill bit 10 can also play the effect of stabilizing the axle center after passing the pipeline.

5. The circumferential surface of the first connector 12 is provided with a circumferential detent 15, and the circumferential detent 15 prevents the first drill bit 10 from slipping during drilling.

6. The second drill bit 20 is arranged and connected between the first connecting head 12 and the clamping thread 13, a pipeline is drilled through a small drill bit to clamp a hole, then a large hole is cut through the second drill bit 20, and after the opening of the second drill bit 20 is finished, the pipeline forms a large waste material, so that the pipeline is clamped under the action of the clamping thread 13 of the first drill bit 10 and then is drawn out.

7. Still be provided with connecting piece 30, first connecting piece 30 cooperates with the first connector 12 of first drill bit 10, and second connection position 32 is connected with second connector 22, and specific second connection position 32 is the ring flange, carries out fixed connection through ring flange and second connector 22, shearing force when having reduced drilling, more be favorable to increasing the life of second drill bit 20 and connecting piece 30, can follow the nail body through the connection of the nail body moreover.

8. The circumferential position-limiting device 15 of the first connector 12 is a square structure, and is fixed by the fixing members 34 at the bottom of the first connector 31, and the circumferential position-limiting device 15 of the first drill 10 is stably realized by the cooperation of the clamping through hole 341 and the circumferential position-limiting device 15.

9. The side of the circumferential detent 15 close to the end face of the first connection head 12 is provided with an axial detent 16, which is fixed to the end face of the fixing element 34 via the axial detent 16, so that the axial detent 16 is realized, preventing the first drill bit 10 from being displaced axially when rotating.

10. The first connector 12 is further provided with an external thread which is matched with the internal thread of the first connecting position 31, the first connector is connected to the first connecting position 31 in a screwing mode, and then the axial clamping position 16 is matched with the circumferential clamping position 15, so that the overall fixing effect is firmer.

11. The pipe opening device is fixed on the third connecting position 33 of the connecting piece 30 by using the drill rod 41 of the opening drill body 40, the rotating power mechanism 42 drives the drill rod 41 to rotate, the propelling power mechanism 43 propels, the two mechanisms are independent, and the rotating power mechanism 42 and the propelling power mechanism 43 do not interfere with each other in operation.

12. The rotating power mechanism 42 comprises a rotating motor 421 and a speed change mechanism 422, and the power input end of the speed change mechanism 422 is connected with the rotating shaft of the rotating motor 421 to provide power, and then the output end of the speed change mechanism 422 is connected with the drill rod 41, so that the power can be transmitted to the drill rod 41, and the condition that the rotating motor 421 directly drives the drill rod 41 cannot be realized, so that the speed change cannot be realized.

13. The speed change mechanism 422 includes a worm wheel and a worm, which are engaged with each other to realize transmission, and has a large transmission ratio and a relatively compact structure.

14. The propelling power mechanism 43 comprises a power source, a screw 435 and a support rod 436, the power source provides power, the power is transmitted to the screw 435, the screw 435 is then transmitted to the support frame 437 through the matching of the sliding part 438, so that the support frame 437 can move up and down, therefore, the transmission of the screw 435 can avoid the drill rod 41 from being directly matched with the power source, and the pipeline opening device is longer in whole and inconvenient to use and transport.

15. The encoder 44 is connected with a first gear 45 on the encoder 44, a second gear 46 is connected on the power rod 431, the first gear 45 is matched with the second gear 46, then the encoder 44 acquires data, and the positions and the working states of the first drill 10 and the second drill 20 can be displayed on a display screen after the data are transmitted and converted.

16. The power transmission of the speed changing mechanism 422 and the power rod 431 are both provided with a sealing element 50, the sealing element 50 is provided with a sealing ring 51, and the rotating power mechanism 42 and the propelling power mechanism 43 are both isolated from the main body part of the open drill body 10 through the matching of the sealing element 50 and the sealing ring 51, so that the waterproof function is realized.

17. An end cover 47 is arranged at the top of the opening drill body 40, the end cover 47 is fixed through a nail body, when the propelling power mechanism 43 fails, the nail body for fixing the end cover 47 can be unscrewed, then the end cover 47 is opened, and then the propelling power mechanism 43 is manually operated to be taken out, so that the clamping condition is avoided.

The above are merely specific embodiments of the present invention, and the scope of the present invention is not limited thereby; any alterations and modifications without departing from the spirit of the invention are within the scope of the invention.

Claims

1. The pipeline opening device is characterized by comprising an opening drill body and a pipeline opening drill, wherein the pipeline opening drill comprises a first drill bit, a second drill bit and a connecting piece, the first drill bit and the second drill bit are connected through the connecting piece, a first cutting head is arranged at the first end of the first drill bit, a first connecting head is arranged at the second end of the first drill bit, a raised clamping thread is arranged on the circumference of the first drill bit between the first cutting head and the first connecting head, the major diameter of the clamping thread is larger than the outer diameter of the first cutting head, and the connecting piece is provided with a first connecting position, a second connecting position and a third connecting position; the opening drill body comprises a rotating power mechanism, a propelling power mechanism and a drill rod, the rotating power mechanism drives the drill rod to rotate, the propelling power mechanism drives the drill rod to move, and the extending end part of the drill rod is connected with the third connecting position; the rotary power mechanism comprises a rotary motor and a speed change mechanism, wherein the power input end of the speed change mechanism is connected with the rotary shaft of the rotary motor, and the power output end of the speed change mechanism is connected with the drill rod; a sealing piece is arranged at the power output end of the speed change mechanism, and a sealing ring is arranged on the sealing piece;

the propelling power mechanism comprises a power source, a screw rod and a support rod, the power output end of the power source is connected with the screw rod, a support frame is fixedly connected to a sliding part of the screw rod, the support frame is rotatably connected with the drill rod, the support frame is slidably connected with the support rod, the power source comprises a power rod, a first handle, a propelling motor and a clutch, the first end of the power rod is in fit transmission with the screw rod through a gear, the second end of the power rod is fixedly connected with the first handle, the motor is connected with the power rod through the clutch, the clutch comprises a first fitting piece and a second fitting piece, the first fitting piece is fixedly connected to the power rod, the second fitting piece is connected with the motor and is rotatably sleeved on the power rod, the second fitting piece comprises a sliding block, and the sliding block is clamped or loosened with the first fitting piece, first fitting piece is provided with the joint recess, the sliding block with first fitting piece matched with one side is provided with the joint arch, the joint recess with the protruding looks joint of joint, the ring channel has been seted up to the outer peripheral face of sliding block, with ring channel matched with is provided with the second handle.

2. The pipe opening device according to claim 1, comprising a first drill bit and a second drill bit and a connector, wherein the first drill bit and the second drill bit are connected through the connector, a first cutting head is arranged at a first end of the first drill bit, a first connector is arranged at a second end of the first drill bit, a raised clamping thread is arranged on the circumference between the first cutting head and the first connector, and the clamping thread has a larger diameter than the outer diameter of the first cutting head;

a first end of the second drill bit is provided with a second cutting head, a second end of the second drill bit is provided with a second connector, and the second connector is fixedly connected between the first connector and the clamping threads;

the chip groove has been seted up to the first end periphery of first drill bit, the chip groove is the heliciform winding, chip groove one end extends to the smear metal face of first cutting head, and the other end passes the joint screw thread, the chip groove is close to the terminal surface of first connector one end is first size along the axial distance to the joint screw thread, first size is 0 to 3 mm.

3. The pipe opening device of claim 2, wherein the minor diameter of said bayonet thread is less than or equal to the outer diameter of said first cutting head.

4. The pipe opening device as claimed in claim 1, wherein a circumferential detent is provided on a circumferential surface of the first connector.

5. The pipe opening device of claim 4, wherein said second connection site is a flange having a through hole, said second connection site is connected to said second connector by a nail passing through said through hole and engaging said second connector to secure said second drill, and said first connection site is engaged with said first connector.

6. The pipeline opening device as claimed in claim 5, wherein the circumferential position of the first connector is a square structure, a fixing member is fixedly mounted at the bottom of the first connector, a clamping through hole matched with the circumferential position is formed in the middle of the fixing member, and the clamping through hole is matched with the circumferential position.

7. Method for using a pipe opening drill, characterized in that a pipe opening device according to claim 1 is used, which comprises the following steps,