CN206267141U

CN206267141U - The material conveying pipe mechanism of power underneath type drilling rod

Info

Publication number: CN206267141U
Application number: CN201621165995.8U
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-01
Filing date: 2016-11-01
Publication date: 2017-06-20
Anticipated expiration: 2026-11-01

Abstract

The utility model belongs to technical field of buildings, is related to a kind of material conveying pipe mechanism of power underneath type drilling rod.Including drilling rod and length adjustment bar, actuating unit is provided between drilling rod and length adjustment bar and the actuating unit and drilling rod drive connection and drilling rod can be driven circumferentially to rotate, conveying passage is provided with inside drilling rod, drilling rod bottom is provided with discharge opening, described discharge opening connection conveying passage, feed pipe for mortar is provided with described length adjustment bar and the feed pipe for mortar is extended in actuating unit, a defeated slurry connecting tube is provided with the outer wall of actuating unit, described defeated slurry connecting tube one end is removably connected with feed pipe for mortar, and the other end is removably connected with conveying passage.The utility model provides a kind of conveyance conduit mechanism that can realize that drilling rod power is underlying, so as to ensure that drilling rod can obtain the cement mixing method of high intensity in underlying power for drilling rod provides material conveying, dynamic structure will not be interfered, reliable and stable work.

Description

The material conveying pipe mechanism of power underneath type drilling rod

Technical field

The utility model belongs to technical field of buildings, is related to a kind of drilling rod, more particularly to a kind of power underneath type drilling rod Material conveying pipe mechanism.

Background technology

At present, the piling machinery for being used on construction site has two kinds：A kind of swivelling pile driver, the structure of this piling machine It is, using the drilling rod hanger bracket of hoist engine pull-up, pile driving equipment of the rod bit to drifter drill for underground pore-forming to be driven by unit head； Another kind is jump bit piling machine, and the structure of this piling machine is fallen repeatedly using hoist engine pull-up jump bit, and lifting comes real Now drive piles.Wherein, swivelling pile driver mainly realizes the purpose to underground drilling rod in piling by circumferentially rotating for drilling rod, Drilling rod is lowered the temperature and cementing operations are carried out to drilling rod using grouting while drilling rod drills, common grouting is mainly led to The grout hole for crossing drill rod end is whitewashed, when drilling rod gets into certain depth, it is necessary to drilling rod supernumerary segment, extend drilling rod, Drill down can be continued.In cementing operations, it is typically employed in and docks drilling rod and extension bar, connect grouting channel, realizes filling Slurry.

Chinese patent literature discloses a kind of bored concrete pile screw lifting slurry-mud drilling rod [application number：201410263015.7], It includes one section or some sections of hollow drills and coupled tool joint, and spiral is provided with the outer surface of hollow drill Connected with tool joint between blade, every section of hollow drill of every section of hollow drill, first segment hollow drill sets with the junction of drill bit Put mouth spray.Generally, the helical blade is welded on core drilling, and is arranged on the hypomere of hollow drill, the length of helical blade The 1/4-1/2 of the total length for hollow drill is spent, diameter of its diameter less than drill bit.Helical blade is square with drilling rod in construction To rotation, upward lifting force is produced to clod in the mud and mud of stake holes hypomere etc., while being produced to drilling rod downward Propulsive force.The program carries out slurry conveying using hollow drill, and when hollow drill has more piece, the length of drilling rod drives The power of drilling rod cannot ensure the perpendicularity of length drilling rod more long, and because many drilling rods and drill bit synchronous axial system are, it is necessary to carry The driving force for supplying drilling rod is larger, and energy consumption is also larger.

Based on the reason for above-mentioned, people start to develop the underlying churn of power, such as Chinese patent literature by constantly exploration Disclose a kind of flexible mixing pile machine [application number of power underneath type：201620193119.X], including stake frame, along stake frame The sliding platform for moving up and down, the chassis for being arranged on a frame lower, the water swivel above sliding platform and positioned at cunning The square telescopic drill rod that moving platform lower section is connected with water swivel, is provided with spur reduction case and motor, spur reduction on chassis The axis hole of the driving gear of case is circular hole, and the axis hole of driven gear is square hole, and motor shaft is inserted into circular hole, drives driving gear Rotation, inserts square telescopic drill rod in square hole, square hole coordinates with the outermost layer drilling rod of square telescopic drill rod into gap, makes square stretching Contracting drilling rod can be moved up and down along square hole and can rotated as driven gear is rotated.Under the whole stake machine center of gravity of such scheme Move, stake frame and chassis overall weight are light, reduce cost, and simple structure is more stable, safer, easy to maintenance.But, should Scheme does not disclose how the conduit assembly for making telescopic drill rod realize grouting, it is clear that cannot realize in drilling rod telescopic process yet Realize whitewashing.

Utility model content

The purpose of this utility model is directed to above mentioned problem, there is provided a kind of material conveying pipe machine of power underneath type drilling rod Structure.

To reach above-mentioned purpose, the utility model employs following technical proposal：A kind of material of power underneath type drilling rod Conveyance conduit mechanism, including drilling rod and length adjustment bar, are provided with actuating unit and the power between drilling rod and length adjustment bar Mechanism and drilling rod drive connection simultaneously can drive drilling rod circumferentially to rotate, and conveying passage is provided with inside drilling rod, and drilling rod bottom is provided with out Material hole, described discharge opening connection conveying passage, be provided with feed pipe for mortar in described length adjustment bar and the feed pipe for mortar extend to it is dynamic In force mechanisms, a defeated slurry connecting tube is provided with the outer wall of actuating unit, described defeated slurry connecting tube one end is removable with feed pipe for mortar The connection unloaded, the other end is removably connected with conveying passage.

In the material conveying pipe mechanism of above-mentioned power underneath type drilling rod, it is additionally provided with described length adjustment bar defeated Tracheae, described appendix is extended in actuating unit, and a gas transmission connecting pipe is provided with the outer wall of actuating unit, and described is defeated Gas connecting tube one end is removably connected with appendix, and the other end is removably connected with conveying passage.

In the material conveying pipe mechanism of above-mentioned power underneath type drilling rod, it is additionally provided with described length adjustment bar defeated Oil pipe, described petroleum pipeline is connected with actuating unit.

In the material conveying pipe mechanism of above-mentioned power underneath type drilling rod, be provided between drilling rod and actuating unit into Feed collet set, forms feed surge chamber between charging chuck and drilling-rod external wall, described defeated slurry connecting tube and gas transmission connecting pipe with enter Feed collet set connects feed surge chamber after being fixedly connected, the charging hole and charging hole that drilling rod is provided with a connection conveying passage are located at In feed surge chamber.

In the material conveying pipe mechanism of above-mentioned power underneath type drilling rod, lead between actuating unit and length adjustment bar Cross socket connection structure to be connected, and there is hollow cannula passage in the middle of the socket connection structure.

In the material conveying pipe mechanism of above-mentioned power underneath type drilling rod, described socket connection structure includes dividing Be not spirally connected fixed the first contiguous block and the second contiguous block with actuating unit and length adjustment bar, described the first contiguous block insertion To in the second contiguous block, the first contiguous block and the second contiguous block pin joint structure are fixedly connected and when the first contiguous block and second connects Block is connect to be fixedly connected in the middle of rear socket connection structure in hollow cannula passage.

In the material conveying pipe mechanism of above-mentioned power underneath type drilling rod, described pin joint structure includes being located at first The first pin-and-hole on contiguous block and the second pin-and-hole on the second contiguous block, in the first contiguous block is inserted into the second contiguous block When, rotating the first contiguous block or the second contiguous block can make the position of the first pin-and-hole and the second pin-and-hole corresponding, and pin is sold from second It is inserted into outside hole in the first pin-and-hole so that the first contiguous block and the second contiguous block pin joint are fixed.

In the material conveying pipe mechanism of above-mentioned power underneath type drilling rod, described pin is provided with pin positioning gear Side, pin joint structure also include with the pin positioning pin positioning retainer ring that matches of rib, on the outer wall of the second contiguous block and edge Second pin-and-hole is circumferentially with some positioning screw holes, and described pin positioning retainer ring is pressed on pin positioning rib and by spiral shell Bolt or screw and positioning screw hole are spirally connected fixation.

In the material conveying pipe mechanism of above-mentioned power underneath type drilling rod, described length adjustment bar outer wall is provided with use In the line embedding groove for being embedded flexible pipe, the line embedding groove is axially arranged along length adjustment bar, and the outer wall of the second described contiguous block is provided with The rule link slot matched with line embedding groove, the second described contiguous block is provided with pinch roller.

In the material conveying pipe mechanism of above-mentioned power underneath type drilling rod, the first described contiguous block is located at second and connects The top in block is connect at least provided with a locating piece locating ring for being spirally connected fixed with the first contiguous block, locating piece locating ring and second Contiguous block clamping, the outer wall of described the first contiguous block and is respectively provided on two sides with a sealing ring so that first positioned at pin Contiguous block and the sealing of the second contiguous block coordinate.

Compared with prior art, the utility model has the advantage of：Can realize that drilling rod power is underlying there is provided a kind of Conveyance conduit mechanism, so as to ensure that drilling rod can obtain the soil cement of high intensity in underlying power for drilling rod provides material conveying Mixing pile, and this conveyance conduit mechanism will not interfere to dynamic structure, actuating unit is each independent with conveyance conduit mechanism, Dismounting and maintenance that can be independent, reliable and stable work.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the schematic diagram in another direction of the utility model；

Fig. 3 is internal structure schematic diagram of the present utility model；

Fig. 4 is the schematic diagram that socket connection structure connects feed pipe for mortar；

Fig. 5 is the structural representation of socket connection structure；

Fig. 6 is the internal structure schematic diagram of socket connection structure；

Fig. 7 is the explosive view of socket connection structure.

In figure：The fast interface 3c of drilling rod 1, length adjustment bar 2, actuating unit 3, oil pump 3a, driving head 3b, feed pipe for mortar, conveying Passage 4, discharge opening 4a, feed pipe for mortar 5, it is defeated slurry connecting tube 6, appendix 7, gas transmission connecting pipe 8, petroleum pipeline 9, charging chuck 10, enter Material cushion chamber 11, charging hole 12, socket connection structure 13, cannula passage 14, the first contiguous block 15, the second contiguous block 16, pin Binding structure 17, the first pin-and-hole 18, the second pin-and-hole 19, pin 20, pin positioning rib 21, pin positioning retainer ring 22, positioning screw hole 23rd, line embedding groove 24, rule link slot 25, locating piece locating ring 26, sealing ring 27.

Specific embodiment

The utility model is described in more detail with reference to the accompanying drawings and detailed description.

Embodiment 1

As depicted in figs. 1 and 2, a kind of material conveying pipe mechanism of power underneath type drilling rod, including drilling rod 1 and length are adjusted Pole 2, is provided with actuating unit 3 between drilling rod 1 and length adjustment bar 2 and the actuating unit 3 can simultaneously drive with the drive connection of drilling rod 1 Dynamic drilling rod 1 is circumferentially rotated, and conveying passage 4 is provided with inside drilling rod 1, and the bottom of drilling rod 1 is provided with discharge opening 4a, described discharge opening 4a Connection conveying passage 4, is provided with feed pipe for mortar 5 and the feed pipe for mortar 5 is extended in actuating unit 3 in described length adjustment bar 2, dynamic The outer wall of force mechanisms 3 is provided with a defeated slurry connecting tube 6, and described defeated one end of slurry connecting tube 6 is removably connected with feed pipe for mortar 5, The other end is removably connected with conveying passage 4.Appendix 7, described appendix 7 are additionally provided with described length adjustment bar 2 Extend in actuating unit 3, a gas transmission connecting pipe 8, described one end of gas transmission connecting pipe 8 are provided with the outer wall of actuating unit 3 Removably it is connected with appendix 7, the other end is removably connected with conveying passage 4.It is additionally provided with described length adjustment bar 2 Petroleum pipeline 9, described petroleum pipeline 9 is connected with actuating unit 3.

It will be appreciated by those skilled in the art that the outer wall of actuating unit 3 has the pipeline or casing of tubulose, actuating unit 3 is realized Sealing, the bottom of drilling rod 1 is provided with drill bit, and discharge opening 4a connects the outer wall of drilling rod 1, so as to allow the material of conveying passage 4 As slurry and gas discharge from discharge opening 4a, length adjustment bar 2 has hollow passage, for plugging feed pipe for mortar 5, appendix 7 and petroleum pipeline 9, wherein feed pipe for mortar 5, appendix 7 and petroleum pipeline 9 conveys cement mortar, air and machine oil respectively, and actuating unit 3 is wrapped Include oil pump 3a and driving head 3b, driving head 3b jointed rods 1, petroleum pipeline 9 provides power oil for oil pump 3a, certainly, dynamic structure 3 Can also select be motor plus gear-box combination.

In the present embodiment, actuating unit 3 is directly connected to drilling rod 1, forms the underlying structure of power, and the length of drilling rod 1 can Substantially to shorten, drilling rod 1 is can be controlled between 1-3 meters, or is further shortened according to actual needs, because the length of drilling rod 1 becomes Short, drilling rod 1 can remain perpendicularity under the driving of actuating unit 3, and output torque is larger, and clay layer can be stirred fully It is dynamic, by installing length adjustment bar 2 additional, 1 time depth of brill of drilling rod can be constantly adjusted, feed pipe for mortar 5 is located inside length adjustment bar 2, Extend in actuating unit 3, actuating unit 3 has the fast interface 3c of feed pipe for mortar, and feed pipe for mortar 5 is made by the fast interface 3c of feed pipe for mortar Quickly it is connected with defeated slurry connecting tube 6, the fast interface 3c of feed pipe for mortar is located at oil pump 3a tops, feed pipe for mortar 5 is not resulted in actuating unit 3 Interference, defeated slurry connecting tube 6 is located at outside actuating unit 3, and the defeated slurry bottom of connecting tube 6 is detachably connected with drilling rod 1, and logical with conveying Road 4 is connected, and gas transmission connecting pipe 8 equally interface can be realized connecing soon with gas transmission connecting pipe 8 soon.

Operationally, drilling rod 1 be rotate, and gas transmission connecting pipe 8 and drilling rod 1 and it is defeated slurry connecting tube 6 be then it is static, Make can be realized between static element and action piece that material is conveyed, it is necessary to sealing between safety action part and static element and continuous Connected state, in the present embodiment, as shown in figure 3, be provided between actuating unit 3 charging chuck 10, charging chuck 10 with bore Feed surge chamber 11 is formed between the outer wall of bar 1, described defeated slurry connecting tube 6 and gas transmission connecting pipe 8 are fixed with charging chuck 10 and connected Feed surge chamber 11 is connected after connecing, drilling rod 1 is provided with a charging hole 12 for connection conveying passage 4 and charging hole 12 is located at charging In cushion chamber 11.Material is entered into feed surge chamber 11, and drilling rod 1 is tightly connected with charging chuck 10, and material is from charging hole 12 Enter into conveying passage 4, realize the continuous conveying of material, feed the simple structure of chuck 10, be preferably provided at actuating unit 3 with Sealing is simultaneously carried out in the junction of drilling rod 1, so as to realize that the material between dynamic and static part is conveyed.

With reference to shown in Fig. 1 and Fig. 3, it is connected by socket connection structure 13 between actuating unit 3 and length adjustment bar 2, And there is hollow cannula passage 14 in the middle of the socket connection structure 13, and with reference to shown in Fig. 4, feed pipe for mortar 5 and socket connection The grafting cooperation of structure 13 or threaded, it is also possible to which sealing cooperation, feed pipe for mortar 5 and socket connection structure are carried out by seal Connection is realized between 13.Preferably, a socket connection structure 13 can be respectively provided with the two ends of length adjustment bar 2, its In a socket connection structure 13 be connected with actuating unit 3, another socket connection structure 13 be used for connect other length Degree adjusting rod 2, realizes lengthening, so as to change the drilling depth of drilling rod 1 to length adjustment bar 2.

Specifically, with reference to shown in Fig. 5-7, socket connection structure 13 include respectively with actuating unit 3 and length adjustment Bar 2 is spirally connected fixed the first contiguous block 15 and the second contiguous block 16, and the first described contiguous block 15 is inserted into the second contiguous block 16 In, the first contiguous block 15 is fixedly connected and when the first contiguous block 15 and the second contiguous block with the second contiguous block 16 with pin joint structure 17 16 are fixedly connected in the middle of rear socket connection structure 13 in hollow cannula passage 14.

With reference to shown in Fig. 7, pin joint structure 17 includes the first pin-and-hole 18 being located on the first contiguous block 15 and connects positioned at second Connect the second pin-and-hole 19 on block 16, when the first contiguous block 15 is inserted into the second contiguous block 16, rotate the first contiguous block 15 or Second contiguous block 16 can make the first pin-and-hole 18 corresponding with the position of the second pin-and-hole 19, and pin 20 is inserted from the outside of the second pin-and-hole 19 To in the first pin-and-hole 18 so that the first contiguous block 15 and the pin joint of the second contiguous block 16 are fixed.Preferred scheme, the first described pin Hole 18, the second pin-and-hole 19 and pin 20 have two, are symmetrical arranged along the center line of socket connection structure 13 respectively, reach raising The effect of pin joint intensity.

Pin 20 can be formed a fixed connection by welding with the second contiguous block 16, but this connected mode is unfavorable for tearing open Unload, in the present embodiment, used as a kind of preferred scheme, pin 20 is provided with pin positioning rib 21, and pin joint structure 17 is also wrapped The pin positioning retainer ring 22 matched with pin positioning rib 21 is included, on the outer wall of the second contiguous block 16 and along the second pin-and-hole 19 Be circumferentially with some positioning screw holes 23, described pin positioning retainer ring 22 is pressed on pin positioning rib 21 and by bolt Or screw and positioning screw hole 23 are spirally connected fixation, axial restraint is realized to pin 20.

As described above, the positioning of axial and circumferential is realized between the first contiguous block 15 and the second contiguous block 16 using pin 20 It is fixedly connected, so as to realize being quickly fixedly connected between actuating unit 3 and length adjustment bar 2, in order to ensure the first contiguous block 15 and second docking location between contiguous block 16 it is accurate, the top that the first contiguous block 15 is located in the second contiguous block 16 at least sets There is a locating piece locating ring 26 for being spirally connected fixed with the first contiguous block 15, locating piece locating ring 26 blocks with the second contiguous block 16 Connect, the outer wall of described the first contiguous block 15 and be respectively provided on two sides with a sealing ring 27 so that first connects positioned at pin 20 The sealing of 15 and second contiguous block of block 16 is connect to coordinate.By locating piece locating ring 26, the first contiguous block 15 and the second contiguous block 16 exist Position precisely, will not occur deviation during docking, and sealing ring 27 then ensure that the sealing of the first contiguous block 15 and the second contiguous block 16 Effect, makes the material in cannula passage 14 not reveal, and the both sides of pin 20 are arranged on due to sealing ring 27, to pin 20 and One pin-and-hole 18, the second pin-and-hole 19 can play a protective role, and prevent the first pin-and-hole 18, the second pin-and-hole 19 from pouring into material and leading to not Pin joint.

Embodiment 2

The present embodiment is essentially identical with the structure and operation principle of embodiment 1, and difference is, as shown in figure 1, length The outer wall of adjusting rod 2 is provided with the line embedding groove 24 for being embedded flexible pipe, the line embedding groove 24 along the axially arranged of length adjustment bar 2, such as Fig. 5 With shown in Fig. 7, the outer wall of the second described contiguous block 16 is provided with the rule link slot 25 matched with line embedding groove 24, described Two contiguous blocks 16 are provided with pinch roller (not shown).

In the present embodiment, feed pipe for mortar 5 and appendix 7 are arranged in length adjustment bar 2, and the flexible pipe such as petroleum pipeline 9, electric wire It is embedded into line embedding groove 24, is achieved a butt joint by rule link slot 25, petroleum pipeline 9, electric wire etc. is entered into actuating unit 3, Pinch roller is used to be pressed into flexible pipe in line embedding groove 24, with the lifting of drilling rod 1, winding is synchronized to flexible pipe with hoist engine etc..

The present embodiment sets line embedding groove 24, allow for when being docked in different length adjustment bar 2 (namely length adjustment During 2 connecting length adjusting rod 2 of bar), electric wire and petroleum pipeline are located at outside length adjustment bar 2, are at this time needed electric wire and oil transportation Pipe cuts off or dismantles, and can just put into the length adjustment bar 2 for needing connection, very inconvenient, and have line embedding groove 24, electric wire and The flexible pipes such as petroleum pipeline can be directly embedded into line embedding groove 24, very convenient, and line embedding groove 24 realizes protection to flexible pipe and makees With preventing from thinking being scraped off in boring procedure scratching.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Although more having used support bar 1, retractable rod 2, drive rod 3, telescoping drive mechanism 4, boom to drive herein Dynamic device assembly 5, actuator assembly 6 of putting away sports equipment, boom hoist engine 7, fixed pulley group 8, boom running block 9, hoist engine 10 of putting away sports equipment, tune Pole 11, running block 12 of putting away sports equipment, expansion link fairlead 13, expansion link are scraped mud fairlead component 14, expansion link positioning sleeve 15, are stretched Contracting bar scrape mud set 16, expansion link waterproof jacket 17, the preposition fairlead 19 of expansion link sealing shroud 18, expansion link, adjusting rod fairlead 20, Adjusting rod scrape mud fairlead component 21, adjusting rod positioning sleeve 22, adjusting rod scrape mud set 23, adjusting rod waterproof jacket 24, adjusting rod it is close The terms such as the preposition fairlead 26 of big envelope 25, adjusting rod, cannula passage 27, workbench 28, drilling rod 100, but be not precluded from using The possibility of other terms.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms； They are construed to any additional limitation and are all disagreed with the utility model spirit.

Claims

1. a kind of material conveying pipe mechanism of power underneath type drilling rod, including drilling rod (1) and length adjustment bar (2), in drilling rod (1) actuating unit (3) is provided with and length adjustment bar (2) between and the actuating unit (3) can simultaneously drives with drilling rod (1) drive connection Drilling rod (1) is circumferentially rotated, and conveying passage (4) is provided with inside drilling rod (1), and drilling rod (1) bottom is provided with discharge opening (4a), described Discharge opening (4a) connects conveying passage (4), it is characterised in that be provided with feed pipe for mortar (5) in described length adjustment bar (2) and this is defeated Slurry pipe (5) is extended in actuating unit (3), and defeated slurry connecting tube (6) is provided with the outer wall of actuating unit (3), and described is defeated Slurry connecting tube (6) one end is removably connected with feed pipe for mortar (5), and the other end is removably connected with conveying passage (4).

2. the material conveying pipe mechanism of power underneath type drilling rod according to claim 1, it is characterised in that described length Appendix (7) is additionally provided with degree adjusting rod (2), described appendix (7) is extended in actuating unit (3), in actuating unit (3) Outer wall be provided with a gas transmission connecting pipe (8), described gas transmission connecting pipe (8) one end is removably connected with appendix (7), separately One end is removably connected with conveying passage (4).

3. the material conveying pipe mechanism of power underneath type drilling rod according to claim 1, it is characterised in that described length Petroleum pipeline (9) is additionally provided with degree adjusting rod (2), described petroleum pipeline (9) is connected with actuating unit (3).

4. the material conveying pipe mechanism of power underneath type drilling rod according to claim 2, it is characterised in that in drilling rod (1) charging chuck (10) is provided with and actuating unit (3) between, it is slow to form charging between charging chuck (10) and drilling rod (1) outer wall Chamber (11) is rushed, it is slow that described defeated slurry connecting tube (6) and gas transmission connecting pipe (8) connects charging after being fixedly connected with charging chuck (10) Chamber (11) is rushed, drilling rod (1) is provided with the charging hole (12) and charging hole (12) of connection conveying passage (4) positioned at feed surge In chamber (11).

5. the material conveying pipe mechanism of power underneath type drilling rod according to claim 1, it is characterised in that actuating unit (3) it is connected by socket connection structure (13) and length adjustment bar (2) between, and tool in the middle of the socket connection structure (13) There is hollow cannula passage (14).

6. the material conveying pipe mechanism of power underneath type drilling rod according to claim 5, it is characterised in that described inserts Connecing formula attachment structure (13) includes the first contiguous block (15) for being spirally connected fixed with actuating unit (3) and length adjustment bar (2) respectively With the second contiguous block (16), described the first contiguous block (15) is inserted into the second contiguous block (16), the first contiguous block (15) and Second contiguous block (16) is fixedly connected and when the first contiguous block (15) and the fixed company of the second contiguous block (16) with pin joint structure (17) Connect in the middle of rear socket connection structure (13) in hollow cannula passage (14).

7. the material conveying pipe mechanism of power underneath type drilling rod according to claim 6, it is characterised in that described pin Binding structure (17) includes the first pin-and-hole (18) on the first contiguous block (15) and on the second contiguous block (16) second Pin-and-hole (19), when the first contiguous block (15) is inserted into the second contiguous block (16), rotates the first contiguous block (15) or the second company Connecing block (16) can make the first pin-and-hole (18) corresponding with the position of the second pin-and-hole (19), and pin (20) is outside from the second pin-and-hole (19) It is inserted into the first pin-and-hole (18) so that the first contiguous block (15) and the second contiguous block (16) pin joint are fixed.

8. the material conveying pipe mechanism of power underneath type drilling rod according to claim 7, it is characterised in that described pin Bolt (20) is provided with pin and positions rib (21), and pin joint structure (17) also includes positioning the pin that rib (21) matches with pin Positioning retainer ring (22), some positioning screw holes are circumferentially with the outer wall of the second contiguous block (16) and along the second pin-and-hole (19) (23), described pin positioning retainer ring (22) is pressed on pin and positions on rib (21) and by bolt or screw and positioning screw hole (23) be spirally connected fixation.

9. the material conveying pipe mechanism of power underneath type drilling rod according to claim 6, it is characterised in that described length Degree adjusting rod (2) outer wall is provided with line embedding groove (24) for being embedded flexible pipe, the line embedding groove (24) along length adjustment bar (2) axial direction Set, the outer wall of described the second contiguous block (16) is provided with the rule link slot (25) matched with line embedding groove (24), described Second contiguous block (16) is provided with pinch roller.

10. the material conveying pipe mechanism of power underneath type drilling rod according to claim 7, it is characterised in that described Top of first contiguous block (15) in the second contiguous block (16) is spirally connected fixation at least provided with one with the first contiguous block (15) Locating piece locating ring (26), locating piece locating ring (26) and the second contiguous block (16) clamping, described the first contiguous block (15) Outer wall and positioned at pin (20) be respectively provided on two sides with a sealing ring (27) so that the first contiguous block (15) with second connect Block (16) sealing is connect to coordinate.