CN110227835A

CN110227835A - Pipeline tapping bores, pipeline tapping device and its application method

Info

Publication number: CN110227835A
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: 2019-09-13
Anticipated expiration: 2039-04-15
Also published as: CN110227835B

Abstract

The invention discloses a kind of pipeline tapping brills, pipeline tapping device and its application method, pipeline tapping bores, including the first drill bit, the first end of first drill bit is provided with the first cutting head, the second end of first drill bit is provided with the first connector, and the major diameter of the provided circumferentially about clamping screw thread that has protrusion of first drill bit between first cutting head and first connector, the clamping screw thread is greater than the outer diameter of first cutting head.By being clamped the setting of screw thread, so that the first drill bit can be with the drilling of inlet and outlet piping, while clamping drills.

Description

Pipeline tapping bores, pipeline tapping device and its application method

Technical field

The present invention relates to pipeline tapping field, especially a kind of pipeline tapping is bored, pipeline tapping device and its application method

Background technique

The use of pipeline is very universal, such as water supply pipe, sewage conduct etc., since the requirement used often will be in pipe Open up various tributary inlets on road, and valve is installed etc., but the pipeline such as last century nine ten relatively remote due to the part age The water supply line in age requires operation of cutting off the water when needing repairing and when opening up tributary inlet.

Then people have invented a kind of opening drill, realize operation of not cutting off the water, but the opening drill is divided into two parts, the A part is the drill bit of draw, and the drill bit is provided with a back-off mechanism behind drill bit, and the back-off mechanism is along drill bit After initially passing through pipeline inside, since gravity or the effect of other elastic mechanisms can open, so the drill bit of draw is by card at this time It cannot extract, then fragment is taken pipeline tapping by the big drill bit for continuing to use cutting pipeline using the drill bit of draw Out, however the structure has a problem that, forms back-off after traction drill bit passes through, cannot take out, if used in cutting pipeline Big drill bit go wrong when needing to take out due to traction drill bit back-off eventually led to more cumbersome so cannot take out Step could take out the drill bit to form back-off, increase construction cost and difficulty.

Summary of the invention

It is an object of the invention to improve the prior art, a kind of pipeline tapping is provided and is bored, pipeline tapping device and Its application method realizes that pipeline tapping bores energy clamping and can also facilitate taking-up.

Its technical solution is as follows:

Pipeline tapping bores, including the first drill bit, and the first end of first drill bit is provided with the first cutting head, and described first The second end of drill bit is provided with the first connector, and first drill bit is between first cutting head and first connector It is provided circumferentially about have protrusion clamping screw thread, it is described clamping screw thread major diameter be greater than first cutting head outer diameter.

Outer diameter of first drill bit in the left and right sides of the clamping screw thread is identical.

The first end periphery of first drill bit offers chip trough, and the chip trough is wound in the shape of a spiral, described to cut Bits slot one end extends to the chip surface of first cutting head, and the other end passes through the clamping screw thread.

The chip trough is first close to the distance that clamping screw thread is axially arrived in the end face of first connector one end Size, the first size are 0 to 3mm.

The path of the clamping screw thread is less than or equal to the outer diameter of first cutting head.

Circumferential detent is provided on the periphery of first connector.

Further include the second drill bit, second drill bit first end be provided with the second cutting head, the of second drill bit Two ends are provided with the second connector, and second connector is fixedly connected between first connector and clamping screw thread.

It further include connector, the connector is provided with the first connection position, the second connection position and third connection position, and described Two connection positions are ring flange, offer through-hole on the ring flange, the second connection position by rivet nut pass through the through-hole and with institute The connection of the second connector, fixed second drill bit are stated, first connection position is connected with first connector.

The circumferential detent of first connector is square structure, and first connection position bottom is fixedly installed with Determine part, the clamping through-hole to match with the circumferential detent, the clamping through-hole and the week are offered in the middle part of the fixing piece It is matched to detent.

The circumferential direction detent is provided with axial detent close to the side of the first connection end surface, and the axial direction detent pushes against institute State the end face of fixing piece.

It is provided with external screw thread between the first connection end surface and the axial detent, is set inside first connection position It is equipped with internal screw thread, first connector is by being screwed into first connection position.

Pipeline tapping device, including opening drill body and aforementioned first drill bit, the second drill bit and connector, the opening Drill body includes revolving power mechanism and thrust power mechanism and drilling rod, and the revolving power mechanism drives the drilling rod rotation, institute Stating thrust power mechanism drives the drilling rod mobile, and the overhanging end of the drilling rod is connect with the third connection position.

The revolving power mechanism includes rotating electric machine, gear, the power intake of the gear with it is described The rotation axis connection of rotating electric machine, the power output end of the gear are connect with the drilling rod.

The power output end of the gear is provided with sealing element, is equipped with sealing ring on the sealing element.

The gear includes worm gear and worm screw, the rotation axis connection of the worm screw and the rotating electric machine, the whirlpool Wheel is fixedly connected with the drilling rod.

The thrust power mechanism includes power source, screw rod and support rod, the power output end of the power source with it is described Screw rod connects, and support frame is fixedly connected on the sliding part of the screw rod, support frame as described above and the drilling rod are rotatablely connected, described Support frame is slidably connected with the support rod.

The power source includes power rail, first handle, propulsion electric machine and clutch, and the first end of the power rail passes through Gear and screw rod cooperation are driven, and second end is fixedly connected with the first handle, the motor pass through clutch with it is described Power rail connection.

The power rail is provided with sealing element towards the drilling rod side, is equipped with sealing ring on the sealing element.

The clutch includes the first matching piece and the second matching piece, and first matching piece is fixedly connected on power rail On, second matching piece connect with the motor and is rotatably sleeved on the power rail, the second matching piece packet Include sliding shoe, the sliding shoe and the first matching piece clamping or release.

First matching piece is provided with clamping groove, and the side that the sliding shoe is matched with first matching piece is set It is equipped with clamping protrusion, the clamping groove is mutually clamped with the clamping protrusion.

The outer peripheral surface of the sliding shoe offers annular groove, is provided with second handle with what the annular groove matched.

It is additionally provided with end cap at the top of opening drill body, the end cap is fixedly connected by rivet nut.

Further include encoder, first gear is connected on the encoder, second gear, institute are connected on the power rail It states first gear and the second gear matches.

Pipeline tapping bores application method, includes the following steps,

Be open drill body high speed rotation, drives the rotation of the first drill bit；

The cutting head of first drill bit cuts pipeline, pipeline tapping, the pipeline of clamping screw thread drilling opening；

First drill bit stops operating, and clamping Major Diam is greater than pipeline tapping bore, and clamping screw thread is held in opening for pipeline At mouthful；

The first drill bit is pulled out, clamping screw thread drives the pipeline tapping fragment of clamping to be displaced outwardly.

It should be understood that

Aforementioned " first, second, third ... " does not represent specific quantity and sequence, is only used for the area to title Point.

Advantages of the present invention or principle are illustrated below:

1, it includes the first drill bit that pipeline tapping, which bores, and the first cutting head and the first connection are respectively arranged on the first drill bit Head, the first connector is for cutting pipeline, and the clamping screw thread between the first cutting head and the first connector plays the role of clamping, Cutting head drilling is first passed through, the first drill bit then rotated continues to feed, so clamping screw thread shape in the hole that pipeline drills out At screw thread is cut, when needing to take out the first drill bit since the major diameter of clamping screw thread is greater than the outer diameter of the first cutting head, that is, manage The aperture that road drills out so the first drill bit is the hole that cannot pass through pipeline and drill out in non-rotary situation, however can lead to The mode for crossing rotation, which screws out, to be come, and avoids and occurs the stuck situation of the first drill bit in the prior art, so being not only able to achieve card It connects to facilitate and takes out the first drill bit.

2, chip trough setting can be by the chip discharge of the first cutting head, and runs through clamping screw thread, will be clamped screw thread Chip discharge, can also play prevents the stuck of clamping screw thread.

3, first size is 0 to 3mm, since there are there is vibration etc. in foozle and use process, chip trough holds The hole wall that pipeline drills out easily is scratched, the thickness of pipeline is typically greater than 5mm, so being arranged smaller by first size, to card It connects after screw thread also passes through the hole that pipeline drills out, chip trough is to the size for scratching size and being less than pipeline thread of hole wall, so will not Influence the effect of screw thread.

4, the path for being clamped screw thread is less than or equal to the outer diameter of the first cutting head, so can be more square in tapping Just, in addition, outer diameter of first drill bit in the left and right sides of clamping screw thread is identical, the clamping of the first drill bit is thread through pipeline It can also play the role of stable axle center afterwards.

5, it is provided with circumferential detent on the periphery of the first connector, realizes the first drill bit in drilling by circumferential detent Slipping phenomenon will not occur.

6, the setting of the second drill bit is fastened between first connector and clamping screw thread, is crept by small drill bit Pipeline carries out card hole, then carries out cutting wide-bore by the second drill bit, after the second drill bit opening, one piece of pipeline formation Big waste material, so the clamping under the clamping threaded function of the first drill bit, then extract out.

7, it is additionally provided with connector, the first connector of the first connector and the first drill bit is cooperated, and the second connection Position is attached with the second connector, and specific second connection position is ring flange, is consolidated by ring flange and the second connector Fixed connection, reduces shearing force when drilling, is more advantageous to the service life for increasing the second drill bit and connector, and pass through The connection of rivet nut can be with changing rivet nut.

8, the circumferential detent of the first connector is square structure, is consolidated by the fixing piece more than the first connection position bottom It is fixed, and by clamping through-hole and circumferential clamping matching, stablize the circumferential detent for realizing the first drill bit.

9, circumferential detent is provided with axial detent close to the side of the first connection end surface, is fixed on by axial detent Determine on the end face of part, it is achieved that axial detent, it is therefore prevented that the first drill bit occurs axially displaced in rotation.

10, it is additionally provided with external screw thread on the first connector, is cooperated with the internal screw thread of the first connection position, passes through what is screwed Mode is connected in the first connection position, then recycles axial detent and circumferential clamping matching, so on whole fixed effect more It is firm to add.

11, pipeline tapping device is fixed in the third connection position of connector using the drilling rod of opening drill body, and is rotated dynamic Force mechanisms driving drilling rod is rotated, and thrust power mechanism is promoted, and is independent from each other between the two, rotating power machine It works and does not interfere with each other between structure and thrust power mechanism.

12, wherein revolving power mechanism includes rotating electric machine, gear, power intake and rotation by gear The rotary shaft of rotating motor is attached offer power, is then attached by the output end of gear and drilling rod so can be with It by power transmission to drilling rod, avoids rotating electric machine and directly drives drilling rod, to cannot achieve speed change.

13, the turbine and worm screw that speed change odd even stock includes realize transmission by the cooperation between turbine and worm screw, and Transmission ratio is big, structure also relative compact, in addition, also realizing the steering of movement by the transmission between worm and gear.

14, the power source and screw rod and support rod that thrust power mechanism includes provide power by power source, then pass It moving to screw rod, screw rod passes through the cooperation of sliding part again, is transferred on support frame, so that support frame can move up and down, and therefore, silk The transmission of bar can exempt drilling rod and directly match with power source, caused by pipeline tapping device more lengthen on the whole, it is inconvenient In using and transport.

15, the encoder being arranged, is connected with first gear on the encoder, is connected with second gear on power rail, passes through First gear and second gear match, and then encoder obtains data, show on a display screen after data being transmitted conversion Show the first drill bit and the second drill bit present position and working condition.

16, the power in the gear is defeated and power rail on be provided with sealing element, be provided on sealing element close Seal, by the cooperation of sealing element and sealing ring, so the master of revolving power mechanism and thrust power mechanism with opening drill body Body portion isolation, realizes waterproof action.

17, it is provided with end cap at the top of opening drill body, end cap is fixed by rivet nut, when thrust power mechanism breaks down The rivet nut of fixed end cap can be unscrewed, then open end cap, thrust power mechanism is then manually operated and takes out, avoids the occurrence of Stuck situation.

Detailed description of the invention

Fig. 1 is the main view of the first drill bit of the embodiment of the present invention；

Fig. 2 is the schematic perspective view of the first drill bit of the embodiment of the present invention；

Fig. 3 is the main view of pipeline tapping device of the embodiment of the present invention；

Fig. 4 is the cross-sectional view of pipeline tapping device of the embodiment of the present invention；

Fig. 5 is schematic enlarged-scale view at A in Fig. 4 of the embodiment of the present invention；

Fig. 6 is schematic enlarged-scale view at B in Fig. 4 of the embodiment of the present invention；

Fig. 7 is the cross-sectional view of thrust power of embodiment of the present invention mechanism；

Fig. 8 is the schematic perspective view of connector of the embodiment of the present invention.

Description of symbols:

10, the first drill bit；11, the first cutting head；12, the first connector；13, it is clamped screw thread；14, chip trough；15, circumferential Detent；16, axial detent；20, the second drill bit；21, the second cutting head；22, the second connector；30, connector；31, first connects Connect position；32, the second connection position；33, third connection position；34, fixing piece；341, it is clamped through-hole；40, be open drill body；41, drilling rod； 42, revolving power mechanism；421, rotating electric machine；422, gear；43, thrust power mechanism；431, power rail；432, first Handle；433, propulsion electric machine；434, clutch；4341, the first matching piece；43411, clamping groove；4342, the second matching piece； 43421, sliding shoe；43422, clamping protrusion；43423, annular groove；4343, second handle；435, screw rod；436, support rod； 437, support frame；438, sliding part；44, encoder；45, first gear；46, second gear；47 end caps；50 sealing elements；51 is close Seal.

Specific embodiment

The embodiment of the present invention is described in detail below.

As depicted in figs. 1 and 2, pipeline tapping bores, including the first drill bit 10, the first end of first drill bit 10 are provided with First cutting head 11, the second end of first drill bit 10 are provided with the first connector 12, and first drill bit 10 is described The clamping screw thread 13 provided circumferentially about for having protrusion between one cutting head 11 and first connector 12, the clamping screw thread 13 Major diameter be greater than first cutting head 11 outer diameter, specifically, first drill bit 10 it is described clamping screw thread 13 left and right The outer diameter of two sides is identical.The first end periphery of first drill bit 10 offers chip trough 14, and the chip trough 14 is in Spiral wound, described 14 one end of chip trough extend to the chip surface of first cutting head 11, and the other end passes through the clamping Screw thread 13, the chip trough 14 are close to the distance that clamping screw thread 13 is axially arrived in the end face of described first connector, 12 one end First size, the first size are 0 to 3mm.Wherein, the path of the clamping screw thread 13 is less than or equal to first cutting First 11 outer diameter.Circumferential detent 15 is provided on the periphery of first connector 12.

As shown in Fig. 3 to Fig. 6 and Fig. 8, it further includes the second drill bit 20 and connector 30 that pipeline tapping, which bores, and described second The first end of drill bit 20 is provided with the second cutting head 21, and the second end of second drill bit 20 is provided with the second connector 22, institute It states the second connector 22 to be fixedly connected between first connector 12 and clamping screw thread 13, the connector 30 is provided with the One connection position 31, the second connection position 32 and third connection position 33, second connection position 32 are ring flange, are opened on the ring flange Equipped with through-hole, the second connection position 32 is passed through by rivet nut and the through-hole and connect with second connector 22, fixation described the Two drill bits 20, first connection position 31 is connected with first connector 12, after third connection position 33 is connect with drilling rod 41 By being fixed perpendicular to the rivet nut in 41 axle center of drilling rod.

As shown in Figure 2 and Figure 6, the circumferential detent 15 of first connector 12 is square structure, and described first connects It connects 31 bottom of position and is fixedly installed with fixing piece 34, the card to match with the circumferential detent 15 is offered in the middle part of the fixing piece 34 Hole 341 is connected, the clamping through-hole 341 is matched with the circumferential detent 15, and the circumferential direction detent 15 is close to the first connector The side of 12 end faces is provided with axial detent 16, and the axial direction detent 16 pushes against the end face of the fixing piece 34, and described first connects It is provided with external screw thread between 12 end face of connector and the axial detent 16, first connection position 31 is internally provided with internal screw thread, First connector 12 is by being screwed into first connection position 31.

As shown in Fig. 3 to Fig. 7, pipeline tapping device, including opening drill body 40 and aforementioned first drill bit 10, second are bored First 20 and connector 30, the opening drill body 40 includes revolving power mechanism 42 and thrust power mechanism 43 and drilling rod 41, described Revolving power mechanism 42 drives the drilling rod 41 to rotate, and the thrust power mechanism 43 drives the drilling rod 41 mobile, the brill The overhanging end of bar 41 is connect with the third connection position 33, and the revolving power mechanism 42 includes rotating electric machine 421, variable-speed motor Structure 422, the rotation axis connection of the power intake of the gear 422 and the rotating electric machine 421, the gear 422 power output end is connect with the drilling rod 41, the gear 422 include worm gear and worm screw, the worm screw with it is described The rotation axis connection of rotating electric machine 421, the turbine are fixedly connected with the drilling rod 41.

The thrust power mechanism 43 includes power source, screw rod 435 and support rod 436, the power output of the power source End is connect with the screw rod 435, and support frame 437, support frame as described above 437 are fixedly connected on the sliding part 438 of the screw rod 435 It is rotatablely connected with the drilling rod 41, support frame as described above 437 is slidably connected with the support rod 436, and the power source includes power Bar 431, first handle 432, propulsion electric machine 433 and clutch 434, the first end of the power rail 431 by gear with it is described The cooperation transmission of screw rod 435, second end are fixedly connected with the first handle 432, and the motor is moved by clutch 434 with described Power bar 431 connects, and the clutch 434 includes the first matching piece 4341 and the second matching piece 4342, first matching piece 4341 are fixedly connected on power rail 431, and second matching piece 4342 connect with the motor and is rotatably sleeved on institute It states on power rail 431, second matching piece 4342 includes sliding shoe 43421, the sliding shoe 43421 and first cooperation 4341 clamping of part or release, first matching piece 4341 are provided with clamping groove 43411, the sliding shoe 43421 with it is described The side that first matching piece 4341 matches is provided with clamping protrusion 43422, the clamping groove 43411 and clamping protrusion The clamping of 43422 phases.The outer peripheral surface of the sliding shoe 43421 offers annular groove 43423, matches with the annular groove 43423 Be provided with second handle 4343.

The power rail 431 is provided with towards 41 side of drilling rod and the power output end of the gear 422 Sealing element 50 is equipped with sealing ring 51 on the sealing element 50.

It is additionally provided with end cap 47 at the top of opening drill body 40, the end cap 47 is fixedly connected by rivet nut.

As shown in fig. 7, further including encoder 44, first gear 45, the power rail 431 are connected on the encoder 44 On be connected with second gear 46, the first gear 45 and the second gear 46 match.

In addition, the link position being rotatably assorted is equipped with bearing.

Pipeline tapping bores application method, includes the following steps,

Be open 40 high speed rotation of drill body, drives the rotation of the first drill bit 10；

The cutting head of first drill bit 10 cuts pipeline, pipeline tapping, the pipeline of the clamping drilling opening of screw thread 13；

First drill bit 10 stops operating, and clamping 13 major diameter of screw thread is greater than pipeline tapping bore, and clamping screw thread 13 is held in pipe The opening in road；

The first drill bit 10 is pulled out, clamping screw thread 13 drives the pipeline tapping fragment of clamping to be displaced outwardly.

The advantages of the present embodiment and principle:

1, it includes the first drill bit 10 that pipeline tapping, which bores, and the first cutting head 11 and first is respectively arranged on the first drill bit 10 Connector 12, the first connector 12 is for cutting pipeline, and the clamping screw thread between the first cutting head 11 and the first connector 12 13 play the role of clamping, first pass through cutting head drilling, and the first drill bit 10 then rotated continues to feed, so clamping screw thread 13 exists It is formed in the hole that pipeline drills out and cuts screw thread, when needing to take out the first drill bit 10 since the major diameter of clamping screw thread 13 is greater than The aperture that the outer diameter of first cutting head 11, i.e. pipeline drill out, so the first drill bit 10 is that cannot wear in non-rotary situation The hole that piping drills out, however can be screwed out by way of rotation to avoid in the prior art and the first drill bit 10 occur Stuck situation, so, the first drill bit 10 of taking-up can also be facilitated by being not only able to achieve clamping.

2, the setting of chip trough 14 can be by the chip discharge of the first cutting head 11, and runs through clamping screw thread 13, will be clamped The chip discharge of screw thread 13, can also play prevents the stuck of clamping screw thread 13.

3, first size is 0 to 3mm, since there are there is vibration etc., chip trough 14 in foozle and use process It being easy to scratch the hole wall that pipeline drills out, the thickness of pipeline is typically greater than 5mm, so first size is arranged smaller, to After clamping screw thread 13 also passes through the hole that pipeline drills out, the size that scratches size be less than pipeline thread of the chip trough 14 to hole wall, institute Not interfere with the effect of screw thread.

4, the path for being clamped screw thread 13 is less than or equal to the outer diameter of the first cutting head 11, so can be more in tapping Add conveniently, in addition, outer diameter of first drill bit 10 in the left and right sides of clamping screw thread 13 is identical, the clamping spiral shell of the first drill bit 10 Line 13 can also play the role of stable axle center after passing through pipeline.

5, it is provided with circumferential detent 15 on the periphery of the first connector 12, the first drill bit 10 is realized by circumferential detent 15 Slipping phenomenon will not occur in drilling.

6, the setting of the second drill bit 20 is fastened between first connector 12 and clamping screw thread 13, passes through bradawl Head drilling pipeline carries out card hole, then carries out cutting wide-bore by the second drill bit 20, after the second drill bit 20 opening, pipe Road forms one piece of big waste material, so the clamping in the case where the clamping screw thread 13 of the first drill bit 10 acts on, then extract out.

7, it is additionally provided with connector 30, the first connector 12 of the first connector 30 and the first drill bit 10 is cooperated, and Second connection position 32 is attached with the second connector 22, and specific second connection position 32 is ring flange, passes through ring flange and the Two connectors 22 are fixedly connected, and reduce shearing force when drilling, are more advantageous to and are increased the second drill bit 20 and connector 30 service life, and can be with changing rivet nut by the connection of rivet nut.

8, the circumferential detent 15 of the first connector 12 is square structure, passes through the fixing piece 34 more than 31 bottom of the first connection position It is fixed, and is cooperated by clamping through-hole 341 and circumferential detent 15, stablize the circumferential detent 15 for realizing the first drill bit 10.

9, circumferential detent 15 is provided with axial detent 16 close to the side of 12 end face of the first connector, passes through axial detent 16 It is fixed on the end face of fixing piece 34, it is achieved that axial detent 16, it is therefore prevented that the first drill bit 10 occurs axial in rotation Displacement.

10, it is additionally provided with external screw thread on the first connector 12, is cooperated with the internal screw thread of the first connection position 31, passes through rotation Stubborn mode is connected in the first connection position 31, and axial detent 16 and circumferential detent 15 is then recycled to cooperate, so whole solid It is more firm in effect to determine.

11, pipeline tapping device is fixed in the third connection position 33 of connector 30 using the drilling rod 41 of opening drill body 40, And revolving power mechanism 42 drives drilling rod 41 to be rotated, and thrust power mechanism 43 is promoted, and is mutually solely between the two Vertical, it works and does not interfere with each other between revolving power mechanism 42 and thrust power mechanism 43.

12, wherein revolving power mechanism 42 includes rotating electric machine 421, gear 422, passes through the dynamic of gear 422 The rotary shaft of power input terminal and rotating electric machine 421 is attached offer power, then passes through the output end and brill of gear 422 Bar 41 is attached so can avoid rotating electric machine 421 by power transmission to drilling rod 41 and directly drive drilling rod 41, thus nothing Method realizes speed change.

14, the power source and screw rod 435 and support rod 436 that thrust power mechanism 43 includes are provided dynamic by power source Then power is driven to screw rod 435, screw rod 435 passes through the cooperation of sliding part 438 again, is transferred on support frame 437, so that support Frame 437 can move up and down, and therefore, the transmission of screw rod 435 can exempt drilling rod 41 and directly match with power source, cause pipeline Shedding motion more lengthens on the whole, is not convenient to use and transports.

15, the encoder 44 being arranged, first gear 45 is connected on encoder 44, is connected with second on power rail 431 Gear 46 is matched by first gear 45 and second gear 46, and then encoder 44 obtains data, data can be transmitted and be turned The first drill bit 10 and 20 present position of the second drill bit and working condition are shown after change on a display screen.

16, the power in the gear 422 is defeated and power rail 431 on be provided with sealing element 50, sealing element 50 On be provided with sealing ring 51, by the cooperation of sealing element 50 and sealing ring 51, so revolving power mechanism 42 and thrust power machine Structure 43 is isolated with the main part of opening drill body 10, and waterproof action is realized.

17, it is provided with end cap 47 at the top of opening drill body 40, end cap 47 is fixed by rivet nut, when thrust power mechanism 43 goes out The rivet nut of fixed end cap 47 can be unscrewed when existing failure, then open end cap 47, thrust power mechanism is then manually operated 43 take out, and avoid the occurrence of stuck situation.

The above is only specific embodiments of the present invention, are not limited the scope of protection of the present invention with this；Do not violating this hair Made any replacement and improvement, category protection scope of the present invention on the basis of bright design.

Claims

1. pipeline tapping bores, which is characterized in that including the first drill bit, the first end of first drill bit is provided with the first cutting Head, the second end of first drill bit are provided with the first connector, and first drill bit is in first cutting head and described The major diameter of the clamping screw thread provided circumferentially about for having protrusion between one connector, the clamping screw thread is greater than first cutting head Outer diameter.

2. pipeline tapping as described in claim 1 bores, which is characterized in that the first end periphery of first drill bit, which offers, to be cut Consider slot to be worth doing, the chip trough is wound in the shape of a spiral, and described chip trough one end extends to the chip surface of first cutting head, the other end Across the clamping screw thread.

3. pipeline tapping as claimed in claim 2 bores, which is characterized in that the chip trough is close to first connector one end The distance that clamping screw thread is axially arrived in end face is first size, and the first size is 0 to 3mm.

4. as described in any one of claims 1 to 3 pipeline tapping bore, which is characterized in that it is described clamping screw thread path be less than or Equal to the outer diameter of first cutting head.

5. pipeline tapping bores as described in any one of claims 1 to 3, circumferential card is provided on the periphery of first connector Position.

6. pipeline tapping bores as described in any one of claims 1 to 3, which is characterized in that further include the second drill bit, second brill The first end of head is provided with the second cutting head, and the second end of second drill bit is provided with the second connector, second connection Head is fixedly connected between first connector and clamping screw thread.

7. pipeline tapping as claimed in claim 6 bores, which is characterized in that further include connector, the connector is provided with first Connection position, the second connection position and third connection position, second connection position are ring flange, offer through-hole on the ring flange, Second connection position is passed through by rivet nut and the through-hole and connect with second connector, fixation second drill bit, and described the One connection position is connected with first connector.

8. pipeline tapping as claimed in claim 6 bores, which is characterized in that the circumferential detent of first connector is rectangular Structure, first connection position bottom are fixedly installed with fixing piece, offer in the middle part of the fixing piece and the circumferential detent phase Matched clamping through-hole, the clamping through-hole are matched with the circumferential detent.

9. pipeline tapping device, which is characterized in that including opening drill body and aforementioned first drill bit, the second drill bit and connection Part, the opening drill body include revolving power mechanism and thrust power mechanism and drilling rod, described in the revolving power mechanism driving Drilling rod rotation, the thrust power mechanism drive the drilling rod mobile, the overhanging end of the drilling rod and the third connection position Connection.

10. pipeline tapping bores application method, which is characterized in that include the following steps,

First drill bit stops operating, and clamping Major Diam is greater than pipeline tapping bore, and clamping screw thread is held in the opening of pipeline；