CN221322283U - Follow-up construction anchor cable machine - Google Patents

Follow-up construction anchor cable machine Download PDF

Info

Publication number
CN221322283U
CN221322283U CN202323530536.8U CN202323530536U CN221322283U CN 221322283 U CN221322283 U CN 221322283U CN 202323530536 U CN202323530536 U CN 202323530536U CN 221322283 U CN221322283 U CN 221322283U
Authority
CN
China
Prior art keywords
rod section
sleeve
follow
drill bit
power head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202323530536.8U
Other languages
Chinese (zh)
Inventor
张天赐
陈志磊
贺宝柱
胡加旺
汪成
高龙
石利燕
邓玉萍
陈琳琳
杨威
方超
李鹏湖
茹毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Construction Group Co Ltd
Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd
Original Assignee
China Railway Construction Group Co Ltd
Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Construction Group Co Ltd, Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd filed Critical China Railway Construction Group Co Ltd
Priority to CN202323530536.8U priority Critical patent/CN221322283U/en
Application granted granted Critical
Publication of CN221322283U publication Critical patent/CN221322283U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

The disclosure relates to the technical field of building construction and provides a follow-up construction anchor cable machine. This follow-up construction anchor rope machine includes anchor rope machine main part, fixed bolster and hoisting accessory, and anchor rope machine main part is including the installation base and install the drilling mechanism on the installation base, and drilling mechanism includes unit head, drill bit and sleeve pipe, and sleeve pipe detachably connects between unit head and drill bit, and unit head drive sleeve pipe and drill bit precession are in order to carry out the drilling, and the fixed bolster setting is on the installation base, and hoisting accessory sets up on the fixed bolster to can be connected in order to hoist the sleeve pipe with sleeve pipe detachably. The follow-up construction anchor rope machine that this disclosure provided hangs the sleeve pipe between unit head and drill bit through hoisting accessory to install the sleeve pipe between unit head and drill bit, can also realize the transportation after the sleeve pipe is torn down, avoided artifical transport, effectively reduced the use of scene manpower, simple to operate is swift, has improved the efficiency of construction, guarantees the construction progress.

Description

Follow-up construction anchor cable machine
Technical Field
The disclosure relates to the technical field of building construction, in particular to a follow-up construction anchor cable machine.
Background
At present, when follow-up construction anchor rope machine is drilling, after confirming drilling angle, a plurality of sleeve pipes are installed on the anchor rope machine in proper order to follow-up drill bit is drilled in order to guarantee drilling depth, after the drilling is accomplished, need demolish a plurality of sleeve pipes one by one from the anchor rope machine, generally adopt the mode of manual handling when installing and demolishing the sleeve pipe, in the work progress, need dual manpower, and installation rate is slow, and the efficiency of construction is low.
Disclosure of utility model
In order to solve the technical problems described above or at least partially solve the technical problems described above, the present disclosure provides a follow-up construction anchor line machine.
The present disclosure provides a follow-up construction anchor rope machine, including:
The anchor cable machine body comprises a mounting base and a drilling mechanism mounted on the mounting base, wherein the drilling mechanism comprises a power head, a drill bit and a sleeve, the sleeve is detachably connected between the power head and the drill bit, and the power head drives the sleeve and the drill bit to screw in for drilling;
The fixed bracket is arranged on the mounting base;
And the lifting device is arranged on the fixed bracket and can be detachably connected with the sleeve to lift the sleeve.
Optionally, the hoisting device comprises a winch, the winch comprises a rotary drum and a rope reeled on the rotary drum, one end of the rope is connected with the rotary drum, and the other end of the rope is detachably connected with the sleeve.
Optionally, a magnetic attraction device is arranged at one end of the rope, which is used for being connected with the sleeve, and the magnetic attraction device is used for being connected with the sleeve in a magnetic attraction mode.
Optionally, the fixed bolster includes first pole section and the second pole section that is angle connection, first pole section with installation base fixed connection, the one end of second pole section with first pole section is connected, and the other end is relative first pole section overhang sets up, hoisting accessory sets up on the second pole section, and is located the second pole section is kept away from the tip of first pole section.
Optionally, the first pole section and the second pole section all adopt channel steel structure, just the first pole section with the second pole section welded fastening.
Optionally, a connection part of the first pole segment and the mounting base is further provided with a reinforcing connection piece, and the reinforcing connection piece is fixedly connected between the first pole segment and the mounting base.
Optionally, the reinforcing connection piece includes angle bar, the one end of angle bar with first pole section fixed connection, the other end of angle bar with installation base fixed connection.
Optionally, the first pole section is perpendicular to the second pole section, the length of the first pole section is greater than or equal to 2000mm, and the length of the second pole section is greater than or equal to 1200mm.
Optionally, the power head is movably arranged on the mounting base, and the power head is provided with a screwing-in position and a screwing-out position on the mounting base;
The setting position of the lifting device on the mounting base is matched with the unscrewing position of the power head, so that the sleeve is lifted between the power head and the drill bit or lifted off from the position between the power head and the drill bit when the power head is in the unscrewing position.
Optionally, the device further comprises a manual controller, wherein the manual controller is electrically connected with the hoisting device and used for controlling the hoisting device to hoist or lower the sleeve.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the utility model provides a follow-up construction anchor rope machine, including the anchor rope machine main part, fixed bolster and hoisting accessory, the anchor rope machine main part is including the installation base and install the drilling mechanism on the installation base, drilling mechanism includes the unit head, drill bit and sleeve pipe, sleeve pipe detachably connects between unit head and drill bit, unit head drive sleeve pipe and drill bit precession are in order to carry out the drilling, the fixed bolster sets up on the installation base, hoisting accessory sets up on the fixed bolster, and can be connected with sleeve pipe detachably in order to hoist the sleeve pipe, hoisting accessory can link to each other with the sleeve pipe and hoist the sleeve pipe promptly, can also separate with the sleeve pipe so that the sleeve pipe is connected between unit head and drill bit and follow the drilling. The sleeve is hung between the power head and the drill bit through the lifting device, so that the sleeve is arranged between the power head and the drill bit, the sleeve arranged between the power head and the drill bit can be lifted, the transportation after the sleeve is detached is realized, the manual transportation is avoided, the use of site manpower is effectively reduced, the installation is convenient and fast, the construction efficiency is improved, and the construction progress is ensured.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of a follow-up construction anchor line machine according to an embodiment of the present utility model;
Fig. 2 is a schematic structural diagram of a lifting device according to an embodiment of the utility model.
In the figure: 1. an anchor cable machine main body; 11. a mounting base; 12. a power head; 13. a drill bit; 14. a sleeve;
2. A fixed bracket; 21. a first pole segment; 22. a second pole segment;
3. A lifting device; 31. a hoist;
4. a magnetic attraction device;
5. reinforcing the connection member;
6. And a manual controller.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
The following detailed description of the follow-up construction anchor cable machine is given by specific examples:
Referring to fig. 1 and 2, a follow-up type construction anchor cable machine according to some embodiments of the present utility model includes an anchor cable machine body 1, a fixing bracket 2 and a lifting device 3.
The anchor cable machine body 1 comprises an installation base 11 and a drilling mechanism arranged on the installation base 11, wherein the drilling mechanism comprises a power head 12, a drill bit 13 and a sleeve 14, the sleeve 14 is detachably connected between the power head 12 and the drill bit 13, the power head 12 drives the sleeve 14 and the drill bit 13 to screw in for drilling, the fixed support 2 is arranged on the installation base 11, the lifting device 3 is arranged on the fixed support 2 and can be detachably connected with the sleeve 14 to lift the sleeve 14.
That is, by installing the fixing bracket 2 on the anchor cable machine body 1 and installing the hoisting device 3 on the fixing bracket 2, so that the hoisting device 3 can be connected with the casing 14 and hoist the casing 14, the hoisting device 3 can also be separated from the casing 14 so that the casing 14 is connected between the power head 12 and the drill bit 13 and follows the borehole.
In particular, when the hoisting device 3 is used for hoisting the sleeve 14 between the power head 12 and the drill bit 13 so as to conveniently install the sleeve 14 between the power head 12 and the drill bit 13, the sleeve 14 installed between the power head 12 and the drill bit 13 can be hoisted, the transfer after the sleeve 14 is disassembled is realized, the manual carrying is avoided, the use of site manpower is effectively reduced, the installation is convenient and quick, the construction efficiency is improved, and the construction progress is ensured.
It should be noted that, according to the actual use requirement, the quantity of sleeve pipe 14 is a plurality of, a plurality of sleeve pipes 14 are lifted through hoisting accessory 3 in proper order, realize through the workman that sleeve pipe 14 is in the alignment of the position on the anchor rope machine after lifting and install sleeve pipe 14 on installation base 11, sleeve pipe 14 follow bit 13 and bore the hole in order to guarantee the drilling depth, after the drilling is accomplished, pull down the back with sleeve pipe 14 from between unit head 12 and bit 13, utilize hoisting accessory 3 to transport sleeve pipe 14 to fixed position, avoided many times manual handling, improve the efficiency of construction.
In some embodiments, referring to fig. 2, the hoisting device 3 comprises a hoist 31, the hoist 31 comprises a drum and a rope wound on the drum, one end of the rope is connected with the drum, and the other end of the rope is used for being detachably connected with the casing 14, i.e. the rope can be connected with the casing 14 and hoist the casing 14, and can be separated from the casing 14 so that the casing 14 is connected between the power head 12 and the drill bit 13 to follow a drilling hole, and after the drilling hole is completed, the casing 14 can be lifted and transported to a fixed position after being detached from between the power head 12 and the drill bit 13. Specifically, the drum may be driven by a motor, manually or hydraulically, as long as the drum can be driven to rotate and the sleeve 14 can be lifted by a rope to avoid manual handling.
With continued reference to fig. 2, the end of the rope, which is used for being connected with the sleeve 14, is provided with a magnetic attraction device 4, and the magnetic attraction device 4 is used for being magnetically attracted with the sleeve 14, namely, the detachable connection between the magnetic attraction device 4 of the rope and the sleeve 14 is realized through magnetic attraction, so that the operation is simple. In specific implementation, the magnetic attraction device 4 is attracted to the middle position of the sleeve 14 to ensure balance, and of course, the magnetic attraction device 4 may be attracted to other positions of the sleeve 14 according to the on-site construction condition, which is not limited in this disclosure.
Of course, the hoisting device 3 may be another device capable of hoisting the sleeve 14, and the present disclosure is not limited to this, as long as the hoisting device can hoist the sleeve 14, avoid manual handling, and improve the construction efficiency.
In some embodiments, referring to fig. 2, the fixing bracket 2 includes a first rod section 21 and a second rod section 22 that are connected at an angle, where the first rod section 21 is fixedly connected to the mounting base 11, specifically, the first rod section 21 may be fixed on the mounting base 11 by welding, or may be connected by screwing or other manners, which is not limited in this disclosure.
In particular, when the second pole segment 22 has one end connected to the first pole segment 21 and the other end overhanging the first pole segment 21, so that the casing 14 can be lifted, further, the lifting device 3 is disposed on the second pole segment 22 and located at the end of the second pole segment 22 far away from the first pole segment 21, it can be understood that the second pole segment 22 is disposed towards the fixed position where the casing 14 is disposed, the lifting device 3, i.e., the winch 31, is disposed correspondingly at the end of the second pole segment 22 far away from the first pole segment 21, further, the winch 31 can be disposed correspondingly to the position of the casing 14, so that the lifting device 3 can lift or transfer the casing 14 conveniently.
It should be noted that the hoisting device 3 may be disposed at other positions of the second pole segment 22, which is not limited in this disclosure, so long as the sleeve 14 can be hoisted to avoid manual handling.
In some embodiments, the first pole segment 21 and the second pole segment 22 are both in a channel steel structure, and the first pole segment 21 and the second pole segment 22 are welded and fixed. Of course, it should be noted that the first pole segment 21 and the second pole segment 22 may have other structures, and the first pole segment 21 and the second pole segment 22 may be fixedly connected by other fixing manners, which are not fixed in the present disclosure, so long as the second pole segment 22 can support the lifting device 3 and fix the lifting device 3 on the second pole segment 22, and can fixedly connect the second pole segment 22 with the first pole segment 21.
It should be noted that the fixing bracket 2 may also be other structures, which are not limited in this disclosure, so long as the hoisting device 3 can be fixed at a higher position and the sleeve 14 can be hoisted to avoid manual handling.
Referring to fig. 2, the connection portion between the first pole segment 21 and the mounting base 11 is further provided with a reinforcing connection member 5, and the reinforcing connection member 5 is fixedly connected between the first pole segment 21 and the mounting base 11.
In particular, when the reinforcing connection piece 5 comprises angle irons, the supporting strength can be improved, one end of each angle iron is fixedly connected with the first rod section 21, and the other end of each angle iron is fixedly connected with the mounting base 11. In particular, the angle iron may be fixed between the first pole segment 21 and the mounting base 11 by welding or the like, and the fixing manner of the angle iron is not limited in this disclosure, as long as the angle iron can be fixed between the first pole segment 21 and the mounting base 11 and the supporting strength of the first pole segment 21 can be improved.
Of course, it should be noted that the reinforcing connection member 5 may have other structures, which are not limited in this disclosure, so long as the reinforcing connection member 5 can be supported between the first pole section 21 and the mounting base 11.
Further, the first pole segment 21 and the second pole segment 22 are perpendicular to each other, the length of the first pole segment 21 is equal to or greater than 2000mm to ensure that the casing 14 can be lifted and the casing 14 transferred between the power head 12 and the drill bit 13, and the length of the second pole segment 22 is equal to or greater than 1200mm to ensure that the casing 14 can be removed and lifted from the particular location where the casing 14 is placed. It should be noted that the lengths of the first pole segment 21 and the second pole segment 22 may be specifically set according to an actual construction site, which is not limited in this disclosure.
In some embodiments, referring to fig. 1, the power head 12 is movably disposed on the mounting base 11, where the power head 12 has a screwing-in position and a screwing-out position on the mounting base 11, and in particular, the disposition position of the lifting device 3 on the mounting base 11 is adapted to the screwing-out position of the power head 12, so as to lift the casing 14 between the power head 12 and the drill bit 13, or lift the casing 14 from between the power head 12 and the drill bit 13 when the power head 12 is in the screwing-out position.
It will be appreciated that when drilling is performed, the power head 12 is first located at the unscrewing position and connected to the casing 14 to drive the casing 14 to unscrew, when the power head 12 moves to the unscrewing position, the power head 12 is disconnected from the casing 14 and returns to the unscrewing position, at this time, the hoisting device 3 moves the other casing 14 between the power head 12 and the drill bit 13, and after the power head 12 is connected to the casing 14, the power head is unscrewed again until moving to the unscrewing position, and after the above steps, drilling can be completed.
In some embodiments, the follow-up construction anchor cable machine of the present disclosure further includes a manual controller 6, where the manual controller 6 is electrically connected with the hoisting device 3, and is used to control the hoisting device 3 to hoist or lower the casing 14, so that the worker is simple to operate, and the construction safety can be ensured.
The follow-up construction anchor cable machine disclosed by the disclosure comprises the following steps during construction:
s1, setting the lengths of a first rod section 21 and a second rod section 22 according to field conditions, welding the ends of the first rod section 21 and the second rod section 22, and welding the end of the first rod section 21 far away from the second rod section 22 on the mounting base 11;
S2, installing a lifting device 3 on the second rod section 22, arranging a magnetic attraction device 4 at one end of the lifting device 3, and lifting the sleeve 14 through the magnetic attraction device 4;
S3, after the hoisting device 3 is used for hoisting the sleeve 14, a worker realizes the position alignment of the sleeve 14 on the anchor rope machine and installs the sleeve 14 on the anchor rope machine, the sleeve 14 is used for drilling holes along with the drill bit 13, after the hoisting device 3 is screwed into the screwing-in position, the magnetic attraction device 4 is detached from the sleeve 14, and the sleeve 14 is repeatedly hoisted again and the drill bit 13 is drilled along with the drill bit;
And S4, after the drilling is completed, the lifting device 3 moves from the screwing-in position to the screwing-out position, the sleeve 14 is pulled out from the drilled hole, the sleeve 14 is detached from the position between the power head 12 and the drill bit 13, and the sleeve 14 is transported to a fixed position where the sleeve 14 is placed.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The above is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. Follow-up construction anchor rope machine, characterized by, include:
The anchor cable machine body (1) comprises a mounting base (11) and a drilling mechanism mounted on the mounting base (11), wherein the drilling mechanism comprises a power head (12), a drill bit (13) and a sleeve (14), the sleeve (14) is detachably connected between the power head (12) and the drill bit (13), and the power head (12) drives the sleeve (14) and the drill bit (13) to screw in for drilling;
The fixed bracket (2) is arranged on the mounting base (11);
And the lifting device (3) is arranged on the fixed bracket (2) and can be detachably connected with the sleeve (14) to lift the sleeve (14).
2. The follow-up construction anchor line machine according to claim 1, characterized in that the hoisting device (3) comprises a hoisting machine (31), the hoisting machine (31) comprises a drum and a rope reeled on the drum, one end of the rope is connected with the drum, and the other end of the rope is detachably connected with the sleeve (14).
3. The follow-up construction anchor cable machine according to claim 2, wherein one end of the rope for being connected with the sleeve (14) is provided with a magnetic attraction device (4), and the magnetic attraction device (4) is used for being magnetically attracted with the sleeve (14).
4. The follow-up construction anchor cable machine according to claim 1, wherein the fixing bracket (2) comprises a first rod section (21) and a second rod section (22) which are connected in an angle, the first rod section (21) is fixedly connected with the mounting base (11), one end of the second rod section (22) is connected with the first rod section (21), the other end of the second rod section (22) is in overhanging arrangement relative to the first rod section (21), and the lifting device (3) is arranged on the second rod section (22) and is positioned at the end part of the second rod section (22) far away from the first rod section (21).
5. The follow-up construction anchor cable machine according to claim 4, wherein the first rod section (21) and the second rod section (22) are both in a channel steel structure, and the first rod section (21) and the second rod section (22) are welded and fixed.
6. The follow-up construction anchor cable machine according to claim 4, wherein the connection part of the first rod section (21) and the mounting base (11) is further provided with a reinforcing connecting piece (5), and the reinforcing connecting piece (5) is fixedly connected between the first rod section (21) and the mounting base (11).
7. The follow-up construction anchor line machine according to claim 6, characterized in that the reinforcing connection piece (5) comprises an angle iron, one end of which is fixedly connected with the first rod section (21), and the other end of which is fixedly connected with the mounting base (11).
8. The follow-up construction anchor line machine according to claim 4, wherein the first rod section (21) and the second rod section (22) are perpendicular to each other, the length of the first rod section (21) is equal to or greater than 2000mm, and the length of the second rod section (22) is equal to or greater than 1200mm.
9. The follow-up construction anchor line machine according to any one of claims 1 to 8, characterized in that the power head (12) is movably arranged on the mounting base (11), the power head (12) having a screwing-in position and a screwing-out position on the mounting base (11);
The setting position of the lifting device (3) on the mounting base (11) is matched with the unscrewing position of the power head (12), so that the sleeve (14) is lifted between the power head (12) and the drill bit (13) or the sleeve (14) is lifted off from between the power head (12) and the drill bit (13) when the power head (12) is in the unscrewing position.
10. The follow-up construction anchor line machine according to any one of claims 1 to 8, further comprising a manual controller (6), the manual controller (6) being electrically connected to the hoisting device (3) for controlling the hoisting device (3) to hoist or lower the casing (14).
CN202323530536.8U 2023-12-22 2023-12-22 Follow-up construction anchor cable machine Active CN221322283U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202323530536.8U CN221322283U (en) 2023-12-22 2023-12-22 Follow-up construction anchor cable machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202323530536.8U CN221322283U (en) 2023-12-22 2023-12-22 Follow-up construction anchor cable machine

Publications (1)

Publication Number Publication Date
CN221322283U true CN221322283U (en) 2024-07-12

Family

ID=91784894

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202323530536.8U Active CN221322283U (en) 2023-12-22 2023-12-22 Follow-up construction anchor cable machine

Country Status (1)

Country Link
CN (1) CN221322283U (en)

Similar Documents

Publication Publication Date Title
CN212671608U (en) Wellhead oil pipe moving device
CN221322283U (en) Follow-up construction anchor cable machine
CN116835429A (en) Mining machinery metal drill lifting equipment
CN103982046A (en) Lifting and installation method of buckling restrained braces
CN216997463U (en) Lifting opening device for cable well cover plate
CN214570148U (en) Hoisting and overturning device for pipe joints of rectangular-like large-caliber pipe-jacking tunnel
CN110630193B (en) Control device of hydraulic power tongs and hydraulic power tongs
CN209778151U (en) Lifting appliance for lifting curtain wall plates
CN210457242U (en) Detachable hoist engine hoist device
CN215977267U (en) Special hanging rib for installing reinforcement cage of bored pile
CN113738293A (en) Wellhead oil pipe moving device
CN212799371U (en) Portable partition plate hoist and mount construction equipment
CN216277694U (en) Vertical upward coring and drilling auxiliary device in tunnel
CN221295980U (en) Detachable movable electric crane and installation system for pipeline in underground pipe gallery
CN219136250U (en) Lifting platform for pipeline installation
CN220845074U (en) Steel-pipe column hoist device under ultralow headroom
CN215213375U (en) Pipe supply system of oil field drilling device
CN214093284U (en) Pipe jacking and penetrating construction equipment
CN212359643U (en) High mast device for rotary spraying construction
CN218520968U (en) Steel reinforcement cage pulls positioner for building installation
CN217412895U (en) Traction device for raise boring pipeline construction
CN215169817U (en) Drill rod dismounting device for auxiliary drilling machine manipulator
CN220182577U (en) Pipeline installation lifting device for constructional engineering
CN220011964U (en) Portable fodder hoist engine
CN212356327U (en) Traction device for dismounting and mounting large tower crane

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant