CN213016245U - Tool convenient for disassembling and assembling internal locking type drill rod - Google Patents
Tool convenient for disassembling and assembling internal locking type drill rod Download PDFInfo
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- CN213016245U CN213016245U CN202021177934.XU CN202021177934U CN213016245U CN 213016245 U CN213016245 U CN 213016245U CN 202021177934 U CN202021177934 U CN 202021177934U CN 213016245 U CN213016245 U CN 213016245U
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Abstract
A tool convenient for disassembling and assembling an internal locking type drill rod relates to the technical field of pile foundation engineering machinery and drilling engineering machinery, and comprises a force application driving head positioned above and a disassembling joint positioned below, wherein a transmission pipe is connected between the force application driving head and the disassembling joint; the transmission pipe comprises an inner pipe fixedly connected with the dismounting joint and an outer pipe fixedly connected with the force application driving head, the inner pipe is sleeved in the outer pipe, and a torque transmission mechanism is arranged between the inner wall of the lower end of the outer pipe and the outer wall of the inner pipe butted with the outer pipe; an upper limiting mechanism and a lower limiting mechanism are arranged on the inner pipe sleeved in the outer pipe, the upper limiting mechanism is fixedly connected with the inner pipe, the lower limiting mechanism is connected with the outer pipe, and a support spring is sleeved on the inner pipe between the upper limiting mechanism and the lower limiting mechanism; the disassembly and assembly joint is provided with a disassembly and assembly rod, and the side wall of the lower part of the disassembly and assembly rod is provided with an elastic key block which is matched with the rotating groove of the inner locking type drill rod to realize torque transmission. The utility model discloses can transmit big moment of torsion, big pulling force, realize interior locking formula drilling rod quick assembly disassembly.
Description
Technical Field
The utility model belongs to the technical field of pile foundation engineering machine tool and probing engineering machine tool technique and specifically relates to an instrument convenient to interior locking-type drilling rod dismouting.
Background
With the development of modern industry, large diameter geological boreholes are increasingly used and the fields in which these boreholes are used are many, such as: the field of pile foundations, the field of mines (wells for various purposes), the field of sewage treatment (aeration wells), and the like. The existing drilling equipment and drilling process for large-diameter drilling are various, and available equipment comprises a rotary drilling rig, a full-section reverse circulation drilling rig, a percussion drilling rig, a submersible drilling rig, a common forward circulation rotary drilling rig and the like, wherein the rotary drilling rig and the full-section reverse circulation drilling rig are mostly applied at present. The drilling machines have the characteristics from the aspects of manufacturing cost, applicability, labor intensity and the like, the adopted drilling process is different according to the characteristics and the initial design of the drilling machine, but when the drilling machine is used for drilling large-diameter deep holes, particularly large-diameter hard rocks, the problem of low drilling efficiency generally exists, and the low drilling efficiency of the large-diameter hard rocks becomes a well-known industrial problem in the world at present.
Based on the above, the applicant integrates the advantages of the previous drilling methods according to the experience of drilling machine development for many years and the research on the drilling process, and originally creates a brand new drilling method and develops a drilling machine (applied for the whole invention patent) and a corresponding internal locking type drill rod (applied for the invention patent) which can be conveniently used by the method.
The internal locking type drill rod has the greatest advantages that the internal locking type drill rod can be quickly disassembled and assembled while large torque and large tensile force can be transmitted, the internal locking type drill rod can be quickly disassembled and assembled because the tensile force is transmitted only through one built-in threaded connection after the drill rods are spliced together through the torque transmission key, the torque transmission key of the disassembly and assembly thread is designed into the internal key for keeping an enough internal drift diameter in the drill rod, and the disassembly and assembly tool suitable for quickly disassembling and assembling the internal locking type drill rod is required to be designed according to the characteristics of the drill rod.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide one kind can transmit big moment of torsion, big pulling force, realize interior locking formula drilling rod quick assembly disassembly's of being convenient for instrument of interior locking formula drilling rod dismouting.
The utility model aims to solve the technical problem that the technical scheme is realized through the following scheme, the utility model relates to a tool convenient for disassembling and assembling an internal locking type drill rod, which is characterized in that the tool comprises a force application driving head positioned above and a disassembling head positioned below and used for transmitting torque to the internal locking type drill rod to realize threaded connection and disassembly of the drill rod, and a transmission pipe is connected between the force application driving head and the disassembling head;
the transmission pipe comprises an inner pipe fixedly connected with the dismounting joint and an outer pipe fixedly connected with the force application driving head, the inner pipe is sleeved in the outer pipe, and a torque transmission mechanism is arranged between the inner wall of the lower end of the outer pipe and the outer wall of the inner pipe butted with the outer pipe; an upper limiting mechanism and a lower limiting mechanism are arranged on the inner pipe sleeved in the outer pipe, the upper limiting mechanism is fixedly connected with the inner pipe, the lower limiting mechanism is connected with the outer pipe, and a support spring is sleeved on the inner pipe between the upper limiting mechanism and the lower limiting mechanism;
the dismounting joint is provided with a dismounting rod extending into an inner hole of the mounting pipe of the inner locking type drill rod, and two elastic key blocks which are matched with the rotating groove on the mounting pipe of the inner locking type drill rod to realize torque transmission are symmetrically arranged on the side wall of the lower part of the dismounting rod; the lower part of the dismounting rod is provided with two vertically arranged and communicated mounting through grooves, the elastic key block comprises elastic key block bodies, the two elastic key block bodies are symmetrically arranged in the mounting through grooves, and a return spring is connected between the two elastic key block bodies; and limit stoppers matched with the elastic key block body are arranged at the upper end and the lower end of the installation through groove.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the instrument of locking formula drilling rod dismouting in being convenient for: the inner wall of the lower end of the outer pipe protrudes inwards to form an inner hexagonal hole, an installation shoulder is formed between the inner hexagonal surface of the outer pipe and the inner circumferential surface of the outer pipe, an outer hexagonal column matched with the inner hexagonal hole of the outer pipe is arranged at the joint of the inner pipe and the outer pipe, and the outer hexagonal column of the inner pipe is inserted into the inner hexagonal hole of the outer pipe in a sliding mode to form the torque transmission mechanism to realize torque transmission.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the instrument of locking formula drilling rod dismouting in being convenient for: the upper limiting mechanism is arranged as an upper limiting cylinder, the inner wall of the upper limiting cylinder is provided with an internal thread, the upper part of the inner tube is provided with an external thread matched with the internal thread of the upper limiting cylinder, and the upper limiting cylinder and the inner tube are connected through the thread;
the lower limiting mechanism is set as a lower limiting cylinder, the outer wall of the lower limiting cylinder is fixedly connected with the inner wall of the outer pipe, and the lower port of the lower limiting cylinder is arranged in a manner of being abutted to the mounting shoulder of the outer pipe.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the instrument of locking formula drilling rod dismouting in being convenient for: the upper limiting cylinder is provided with an anti-returning block which is fixedly connected with the upper end of the inner tube, and the top end of the upper limiting cylinder is arranged in a manner of being abutted to the lower end of the anti-returning block.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the instrument of locking formula drilling rod dismouting in being convenient for: a protective cylinder is sleeved outside the supporting spring between the upper limiting cylinder and the lower limiting cylinder.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the instrument of locking formula drilling rod dismouting in being convenient for: the elastic key block body is provided with a guide slope surface matched with the inner hole wall of the installation pipe of the inner locking type drill rod.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the instrument of locking formula drilling rod dismouting in being convenient for: the force application driving device is characterized in that a driving pipe is connected between the force application driving head and the outer pipe, the force application driving head is arranged on the upper portion of the driving pipe, pin holes which are matched with each other are formed in the butt joint of the driving pipe and the outer pipe, and the driving pipe is connected with the outer pipe through a connecting pin.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the instrument of locking formula drilling rod dismouting in being convenient for: the lower part of the driving pipe is provided with an outer hexagonal column, the butt joint of the outer pipe and the driving pipe is provided with an inner hexagonal hole matched with the outer hexagonal column of the driving pipe, the outer hexagonal column of the driving pipe is inserted into the inner hexagonal hole of the driving pipe, and the driving pipe is connected with the outer pipe through a pin.
Compared with the prior art, the beneficial effects of the utility model are that:
the disassembly and assembly joint is arranged, the disassembly and assembly rod is arranged on the disassembly and assembly joint and can penetrate into the installation pipe of the inner locking type drill rod, the elastic key block is arranged on the disassembly and assembly rod and is matched with the rotating groove of the installation pipe in the inner locking type drill rod to transmit torque to the installation pipe and drive the installation pipe to rotate, connection or disconnection between the external thread of the locking joint in the inner locking type drill rod and the internal thread of the male joint in the inner locking type drill rod is realized, and assembly or disassembly of the inner locking type drill rod is realized;
through set up the transmission pipe between application of force drive head and the joint of tearing open, set up the biography between the inner tube of transmission pipe and the outer tube and turn round the mechanism, through the cooperation of passing round the mechanism, activity key piece and rotating groove, this assembly and disassembly tools can transmit big moment of torsion and big pulling force, connects firmly, and the operation is reliable, and the dismouting is convenient fast.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 3 is an enlarged view of the structure at C in FIG. 2;
FIG. 4 is an enlarged view of the structure at A in FIG. 2;
FIG. 5 is a schematic view of an inner locking drill rod;
FIG. 6 is a schematic front view of the male connector;
FIG. 7 is a front view of the female connector;
FIG. 8 is a cross-sectional view of a mounting tube in the inner locking drill rod.
In the figure: 1. the device comprises a force application driving head, a detaching joint, a driving pipe, an outer pipe, an inner pipe, a torque transmission mechanism, a supporting spring, a detaching rod, a spring key block body, an elastic key block body, an upper limiting cylinder, a lower limiting cylinder, a stop block, a driving pipe, an installation through groove, a limiting stop block, a limiting convex edge, a guiding surface, a reset spring, a mounting shoulder, a male joint, a female joint, a torque transmission external spline, a torque transmission internal spline, a limiting shoulder, a mounting pipe, a locking joint, an external thread, an internal thread, a pressing shoulder, a retaining ring, a rotating groove and a rotating sealing ring, wherein the force application driving head, the detaching joint, the driving pipe, the external pipe, the driving pipe, the.
Detailed Description
The following further describes embodiments of the present invention in order to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.
Embodiment 1 a tool for facilitating disassembly and assembly of an internal locking type drill rod, referring to fig. 5, and in combination with fig. 6 and 7, comprises a force application driving head 1 positioned above and a disassembly joint 2 positioned below and used for transferring torque to the internal locking type drill rod to realize disassembly and assembly of a threaded connection of the drill rod, wherein a transmission pipe 3 is connected between the force application driving head 1 and the disassembly joint 2;
the transmission pipe 3 comprises an inner pipe 302 fixedly connected with the disconnecting joint 2 and an outer pipe 301 fixedly connected with the force application driving head 1, the inner pipe 302 is sleeved in the outer pipe 301, and a torque transmission mechanism 4 is arranged between the inner wall of the lower end of the outer pipe 301 and the outer wall of the inner pipe 302 butted with the outer pipe 301; an upper limiting mechanism and a lower limiting mechanism are arranged on the inner pipe 302 sleeved in the outer pipe 301, the upper limiting mechanism is fixedly connected with the inner pipe 302, the lower limiting mechanism is connected with the outer pipe 301, and a supporting spring 5 is sleeved on the inner pipe 302 between the upper limiting mechanism and the lower limiting mechanism;
the dismounting joint 2 is provided with a dismounting rod 6 extending into an inner hole of the mounting pipe 23 of the inner locking type drill rod, and two elastic key blocks which are matched with the rotating groove 29 on the mounting pipe 23 of the inner locking type drill rod to realize torque transmission are symmetrically arranged on the side wall of the lower part of the dismounting rod 6; two vertically arranged and communicated installation through grooves 12 are formed in the lower portion of the dismounting rod 6, each elastic key block comprises an elastic key block body 7, the two elastic key block bodies 7 are symmetrically installed in the installation through grooves 12, and a return spring 16 is connected between the two elastic key block bodies 7; and limit stoppers 13 matched with the elastic key block body 7 are arranged at the upper end and the lower end of the installation through groove 12, and the limit stoppers 13 are not higher than the outer circumferential surface of the dismounting rod 6. And limiting convex edges 14 matched with the limiting stop blocks 13 are arranged on two sides of the elastic key block body 7. When dismouting pole 6 stretched into in the installation pipe 23 of interior locking drilling rod, the elasticity key piece body 7 on both sides was extruded simultaneously, rotates dismouting pole 6 in-process, when meetting and rotate groove 29, two elasticity key piece bodies 7 can pop out simultaneously and insert and rotate in the groove 29 and chucking, realize the connection between the installation pipe 23 of this assembly and disassembly tools and interior locking drilling rod.
An inner hexagonal hole is formed by inward protrusion of the inner wall of the lower end of the outer pipe 301, an installation shoulder 17 is formed between the inner hexagonal surface of the outer pipe 301 and the inner circumferential surface of the outer pipe 301, an outer hexagonal column matched with the inner hexagonal hole of the outer pipe 301 is arranged at the joint of the inner pipe 302 and the outer pipe 301, and the outer hexagonal column of the inner pipe 302 is inserted in the inner hexagonal hole of the outer pipe 301 in a sliding manner to form the torque transmission mechanism 4 for realizing torque transmission. The torque transmission mechanism 4 can also adopt a square insertion structure or other connection structures which can realize torque transmission, such as spline connection and the like.
The upper limiting mechanism is an upper limiting cylinder 8, an inner wall of the upper limiting cylinder 8 is provided with an inner thread 26, the upper part of the inner tube 302 is provided with an outer thread 25 matched with the inner thread 26 of the upper limiting cylinder 8, and the upper limiting cylinder 8 is connected with the inner tube 302 through threads;
the lower limiting mechanism is a lower limiting cylinder 9, the outer wall of the lower limiting cylinder 9 is fixedly connected with the inner wall of the outer pipe 301, and the lower port of the lower limiting cylinder 9 is arranged in a manner of being abutted to the mounting shoulder 17 of the outer pipe 301.
An anti-return block 10 is arranged on the upper limiting cylinder 8, the anti-return block 10 is fixedly connected with the upper end of the inner tube 302, and the top end of the upper limiting cylinder 8 is arranged in a manner of being abutted to the lower end of the anti-return block 10.
A protective cylinder is sleeved outside the supporting spring 5 between the upper limiting cylinder 8 and the lower limiting cylinder 9. The protective barrel can play a role in limiting the height and limiting the length of the spring which is compressed.
The elastic key block body 7 is provided with a guide slope surface 15 matched with the inner hole wall of the installation pipe 23 of the inner locking type drill rod. Because the elastic key block body 7 is provided with the guide slope surface 15, the dismounting rod 6 can be smoothly connected with and dismounted from the installation pipe 23 of the inner locking type drill rod, during dismounting, the dismounting rod 6 is pulled, the inner hole wall of the installation pipe 23 extrudes the guide slope surface 15 of the elastic key block body 7, the elastic key block body 7 is pressed into the installation through groove 12, the elastic key block body 7 is separated from the rotating groove 29, and the dismounting tool is separated from the installation pipe 23 of the inner locking type drill rod.
The driving pipe 11 is connected between the force application driving head 1 and the outer pipe 301, the force application driving head 1 is arranged on the upper portion of the driving pipe 11, pin holes matched with each other are formed in the butt joint portion of the driving pipe 11 and the outer pipe 301, and the driving pipe 11 is connected with the outer pipe 301 through a connecting pin.
The lower part of the driving pipe 11 is provided with an outer hexagonal column, the joint of the outer pipe 301 and the driving pipe 11 is provided with an inner hexagonal hole matched with the outer hexagonal column of the driving pipe 11, the outer hexagonal column of the driving pipe 11 is inserted into the inner hexagonal hole of the driving pipe 11, and the driving pipe 11 is connected with the outer pipe 301 through a pin. The hexagonal splicing structure between the driving pipe 11 and the outer pipe 301 can transmit torque.
The lower end of the upper limiting cylinder 8 is pressed at the upper end of the supporting spring 5, the lower end of the supporting spring 5 is pressed at the upper end of the lower limiting cylinder 9, the lower end of the lower limiting cylinder 9 is pressed on the mounting shoulder 17 of the outer pipe 301, and the inner pipe 302 and the dismounting joint 2 are suspended and supported by the supporting spring 5. The threaded connection length between the external thread 25 of the installation cylinder in the interior locking type drill rod and the internal thread 26 of the male joint 18 in the interior locking type drill rod is L1, the length that the supporting spring 5 is compressed when hovering and supporting in operation is L2, when L1 < L2, even if not longitudinal movement driving tube 11 during the dismouting screw thread, the axial force that acts on the screw thread is not more than the gravity of inner tube 302 and disconnect 2 all the time, inner tube 302 and disconnect 2 quality are less, the frictional force that causes the screw thread in the screw thread dismouting in-process can be ignored, can needn't design the longitudinal tracking removal function of assembly and disassembly tools, when this assembly and disassembly tools adopts the gyrator drive, then can simplify greatly and be used for driving the drive unit and the control system of application of force driving head 1 pivoted gyrator.
During assembly, the female joint 19 of the inner locking type drill rod is inserted into the male joint 18 through spline fit, the lower part of the dismounting rod 6 is inserted into the mounting tube 23 in the inner locking type drill rod, the dismounting rod 6 is rotated, when the dismounting rod is contacted with the inner wall of the mounting tube 23, the elastic key block body 7 is extruded and accommodated in the mounting through groove 12, the dismounting rod 6 is continuously rotated until the elastic key block body 7 is popped out under the action of the reset spring 16 and inserted into the rotating groove 29, the driving head 1 is driven by rotating force application, the torque transmission mechanism 4 transmits power and torque to the inner tube 302 of the transmission tube 3 from the outer tube 301 of the transmission tube 3, the inner tube 302 is driven by the outer tube 301 to rotate, the movable key block is matched with the rotating groove 29, the power and torque of the inner tube 302 are transmitted to the mounting tube 23 from the dismounting rod 6, the mounting tube 23 is driven to rotate, and connection of the external thread 25 of the locking joint 24 of the mounting tube 23 and the internal thread 26, the connection of two internal locking drill rods is realized; during disassembly, the disassembly and assembly rod 6 is rotated reversely, the connecting threads between the locking joint 24 of the installation pipe 23 and the male joint 18 of the internal locking type drill rod are removed, and then the female joint 19 is pulled out of the male joint 18, so that the internal locking type drill rod can be disassembled.
The utility model discloses an interior locking type drilling rod that is suitable for, refer to fig. 5-8, male joint 18 and female joint 19 including drilling rod body both ends, be equipped with on the male joint 18 and pass and turn round external splines 20, be equipped with on the female joint 19 and pass and turn round internal splines 21 with the biography that above-mentioned biography turned round external splines 20 matees, be equipped with spacing circular bead 22 on the male joint 18 of 20 roots of biography turn round external splines, be equipped with installation pipe 23 with one heart in the drilling rod body, the fixed locking joint 24 that has external screw thread 25 that is equipped with of one end that installation pipe 23 is close to female joint 19, set up the internal thread 26 with locking joint 24's external screw thread 25 assorted on the male joint 18 inner wall, be equipped with on the outer wall that locking joint 24 is close to external screw thread 25 and compress tightly circular bead 27, be equipped with fender ring 28 between 21 roots of biography turn round internal splines of circular. The pipe rotating mechanism comprises two rotating grooves 29 symmetrically formed in the pipe wall of the mounting pipe 23. The locking joint 24 is screwed with the male joint 18 by inserting an external installation tool into the rotation groove 29 to drive the installation tube 23 to rotate. The outer wall of the stop ring 28 is arranged to abut against the inner wall of the drill rod body, and the inner wall of the stop ring 28 is arranged to abut against the outer wall of the locking joint. A rotary sealing ring 30 is arranged between the mounting pipe 23 and the inner wall of the drill rod body. See application No. 2019207066648 for details.
The disassembling tool is inserted into the mounting pipe 23, the elastic key block body is inserted into the rotating groove 29, the mounting pipe 23 is driven to rotate, and assembling and disassembling of threaded connection of the locking joint 24 and the male joint 18 are achieved.
Claims (8)
1. The utility model provides an instrument convenient to dismouting of internal locking formula drilling rod which characterized in that: the device comprises a force application driving head positioned above and a dismantling joint positioned below and used for realizing threaded connection and dismantling of the drill rod by transferring torque to an inward locking type drill rod, wherein a transmission pipe is connected between the force application driving head and the dismantling joint;
the transmission pipe comprises an inner pipe fixedly connected with the dismounting joint and an outer pipe fixedly connected with the force application driving head, the inner pipe is sleeved in the outer pipe, and a torque transmission mechanism is arranged between the inner wall of the lower end of the outer pipe and the outer wall of the inner pipe butted with the outer pipe; an upper limiting mechanism and a lower limiting mechanism are arranged on the inner pipe sleeved in the outer pipe, the upper limiting mechanism is fixedly connected with the inner pipe, the lower limiting mechanism is connected with the outer pipe, and a support spring is sleeved on the inner pipe between the upper limiting mechanism and the lower limiting mechanism;
the dismounting joint is provided with a dismounting rod extending into an inner hole of the mounting pipe of the inner locking type drill rod, and two elastic key blocks which are matched with the rotating groove on the mounting pipe of the inner locking type drill rod to realize torque transmission are symmetrically arranged on the side wall of the lower part of the dismounting rod; the lower part of the dismounting rod is provided with two vertically arranged and communicated mounting through grooves, the elastic key block comprises elastic key block bodies, the two elastic key block bodies are symmetrically arranged in the mounting through grooves, and a return spring is connected between the two elastic key block bodies; and limit stoppers matched with the elastic key block body are arranged at the upper end and the lower end of the installation through groove.
2. The tool for facilitating the disassembly and assembly of an inner locking drill rod as claimed in claim 1, wherein: the inner wall of the lower end of the outer pipe protrudes inwards to form an inner hexagonal hole, an installation shoulder is formed between the inner hexagonal surface of the outer pipe and the inner circumferential surface of the outer pipe, an outer hexagonal column matched with the inner hexagonal hole of the outer pipe is arranged at the joint of the inner pipe and the outer pipe, and the outer hexagonal column of the inner pipe is inserted into the inner hexagonal hole of the outer pipe in a sliding mode to form the torque transmission mechanism to realize torque transmission.
3. The tool for facilitating the disassembly and assembly of an inner locking drill rod as claimed in claim 2, wherein: the upper limiting mechanism is arranged as an upper limiting cylinder, the inner wall of the upper limiting cylinder is provided with an internal thread, the upper part of the inner tube is provided with an external thread matched with the internal thread of the upper limiting cylinder, and the upper limiting cylinder and the inner tube are connected through the thread;
the lower limiting mechanism is set as a lower limiting cylinder, the outer wall of the lower limiting cylinder is fixedly connected with the inner wall of the outer pipe, and the lower port of the lower limiting cylinder is arranged in a manner of being abutted to the mounting shoulder of the outer pipe.
4. The tool for facilitating the disassembly and assembly of an inner locking drill rod as claimed in claim 3, wherein: the upper limiting cylinder is provided with an anti-returning block which is fixedly connected with the upper end of the inner tube, and the top end of the upper limiting cylinder is arranged in a manner of being abutted to the lower end of the anti-returning block.
5. A tool for facilitating the disassembly and assembly of an inner locking drill rod according to claim 3 or 4, wherein: a protective cylinder is sleeved outside the supporting spring between the upper limiting cylinder and the lower limiting cylinder.
6. The tool for facilitating the disassembly and assembly of an inner locking drill rod as claimed in claim 1, wherein: the elastic key block body is provided with a guide slope surface matched with the inner hole wall of the installation pipe of the inner locking type drill rod.
7. The tool for facilitating the disassembly and assembly of an inner locking drill rod as claimed in claim 1, wherein: the force application driving device is characterized in that a driving pipe is connected between the force application driving head and the outer pipe, the force application driving head is arranged on the upper portion of the driving pipe, pin holes which are matched with each other are formed in the butt joint of the driving pipe and the outer pipe, and the driving pipe is connected with the outer pipe through a connecting pin.
8. The tool for facilitating the disassembly and assembly of an inner locking drill rod as claimed in claim 7, wherein: the lower part of the driving pipe is provided with an outer hexagonal column, the butt joint of the outer pipe and the driving pipe is provided with an inner hexagonal hole matched with the outer hexagonal column of the driving pipe, the outer hexagonal column of the driving pipe is inserted into the inner hexagonal hole of the driving pipe, and the driving pipe is connected with the outer pipe through a pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021177934.XU CN213016245U (en) | 2020-06-23 | 2020-06-23 | Tool convenient for disassembling and assembling internal locking type drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021177934.XU CN213016245U (en) | 2020-06-23 | 2020-06-23 | Tool convenient for disassembling and assembling internal locking type drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213016245U true CN213016245U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021177934.XU Active CN213016245U (en) | 2020-06-23 | 2020-06-23 | Tool convenient for disassembling and assembling internal locking type drill rod |
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| CN (1) | CN213016245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894480A (en) * | 2020-06-23 | 2020-11-06 | 天明(南京)智能装备科技有限公司 | Disassembling tool suitable for internal locking type drill rod |
-
2020
- 2020-06-23 CN CN202021177934.XU patent/CN213016245U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894480A (en) * | 2020-06-23 | 2020-11-06 | 天明(南京)智能装备科技有限公司 | Disassembling tool suitable for internal locking type drill rod |
| CN111894480B (en) * | 2020-06-23 | 2022-06-21 | 天明(南京)智能装备科技有限公司 | Disassembling tool suitable for internal locking type drill rod |
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