CN113338235A - Multi-radian inclined-section water diversion pipe moving maintenance platform - Google Patents

Multi-radian inclined-section water diversion pipe moving maintenance platform Download PDF

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Publication number
CN113338235A
CN113338235A CN202110441964.XA CN202110441964A CN113338235A CN 113338235 A CN113338235 A CN 113338235A CN 202110441964 A CN202110441964 A CN 202110441964A CN 113338235 A CN113338235 A CN 113338235A
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CN
China
Prior art keywords
platform
balance
lifting
rope
section
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.)
Pending
Application number
CN202110441964.XA
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Chinese (zh)
Inventor
陶一军
钱泱
项兴华
陆建峰
王兵
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.)
Zhejiang Jingyuan Electric Power Industry Co ltd
Jinshuitan Hydropower Plant of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
Zhejiang Jingyuan Electric Power Industry Co ltd
Jinshuitan Hydropower Plant of State Grid Zhejiang Electric Power 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.)
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Application filed by Zhejiang Jingyuan Electric Power Industry Co ltd, Jinshuitan Hydropower Plant of State Grid Zhejiang Electric Power Co Ltd filed Critical Zhejiang Jingyuan Electric Power Industry Co ltd
Priority to CN202110441964.XA priority Critical patent/CN113338235A/en
Publication of CN113338235A publication Critical patent/CN113338235A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/02—Water-ways
    • E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • E04G3/32—Hoisting devices; Safety devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

本发明公开了一种多弧度斜段引水管移动检修平台，旨在解决现在的检修平台在引水管弧度段中不能保持水平的不足。该发明包括吊篮平台，包括底板、支撑架和辅助架，所述支撑架固定连接在底板的靠近外缘位置，辅助架固定连接在底板下方，辅助架在宽度方向上倾斜；平衡部，所述平衡部包括吊钩和若干连接在吊钩和吊篮平台之间的平衡绳；提升部，所述提升部包括卷扬机和提升绳，提升绳的一端连接在吊钩上，卷扬机通过提升绳牵引提升吊篮平台；所述平衡绳根据吊篮平台在引水管中的位置调整自身长度以维持吊篮平台的稳定。本装置通过设置辅助架实现了不会自转的功能，通过平衡绳的相对长度的变化，实现了吊篮平衡的水平，不会侧翻。

Figure 202110441964

The invention discloses a mobile maintenance platform for a water diversion pipe with a multi-radian inclined section, aiming at solving the problem that the current maintenance platform cannot maintain the level in the radian section of the diversion pipe. The invention includes a hanging basket platform, including a bottom plate, a supporting frame and an auxiliary frame, the supporting frame is fixedly connected at a position near the outer edge of the bottom plate, the auxiliary frame is fixedly connected under the bottom plate, and the auxiliary frame is inclined in the width direction; The balancing part includes a hook and a number of balancing ropes connected between the hook and the platform of the hanging basket; the hoisting part includes a hoist and a hoisting rope, one end of the hoisting rope is connected to the hook, and the hoist is pulled by the hoisting rope Lift the gondola platform; the balance rope adjusts its own length according to the position of the gondola platform in the water diversion pipe to maintain the stability of the gondola platform. The device realizes the function of non-rotation by setting the auxiliary frame, and realizes the level of the balance of the hanging basket through the change of the relative length of the balance rope, and will not roll over.

Figure 202110441964

Description

Multi-radian inclined-section water diversion pipe moving maintenance platform
Technical Field
The invention relates to transportation lifting equipment, in particular to a mobile maintenance platform for a multi-radian inclined-section water conduit.
Background
At present, most diversion steel pipes of hydropower stations adopt an arrangement mode (shown in figure 1), and diversion pipeline inclined pipe sections need to adopt a multi-radian arrangement mode for reducing hydraulic loss. The diversion steel pipe changes with the many places of horizontally contained angle, and the intraductal inclination of diversion is high, can not weld, leads to unable scaffold frame of putting up. The maintenance platform adopting the conventional hoisting type can not keep the level of the maintenance platform, and potential safety hazards exist. A special mobile maintenance platform for the water conduit with high fall, inclined section and arc section is needed.
Chinese patent publication No. CN205709454U, the name is self-elevating drilling platform immersible pump hoist system, this application discloses self-elevating drilling platform immersible pump hoist system, it includes each section leading-water pipe and immersible pump, the leading-water pipe passes through flange joint with the immersible pump of below, install the lug on every section leading-water pipe, a wire rope is connected through the lug to the leading-water pipe lower extreme that is located the below, this wire rope end and lug component connection, install the blind flange on the flange that is located the leading-water pipe bottom of below, install lower blind flange on the flange at immersible pump top, all install rings on upper blind flange and the lower blind flange, the blind flange passes through rings and a main hook connection down, the main hook is connected with main wire rope, near the immersible pump sets up and is used for the dress hook, tear the multilayer. It can not adapt to the multi-radian condition of the pipeline and can not maintain the level in the multi-radian pipeline.
Disclosure of Invention
The invention overcomes the defect that the existing maintenance platform can not keep horizontal in the radian section of the water conduit, and provides a multi-radian oblique-section water conduit mobile maintenance platform which can keep horizontal at each position and improve the safety of the maintenance platform.
On the other hand, through the design to the maintenance platform shape, can avoid the maintenance platform to take place the rotation, simplified balanced work and improved the production security.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a platform is overhauld in removal of multi-radian slope section leading water pipe, includes:
the hanging basket platform comprises a bottom plate, a support frame and an auxiliary frame, wherein the support frame is fixedly connected to the position, close to the outer edge, of the bottom plate, the auxiliary frame is fixedly connected to the lower portion of the bottom plate, and the auxiliary frame is inclined in the width direction;
the balance part comprises a lifting hook and a plurality of balance ropes connected between the lifting hook and the hanging basket platform;
the lifting part comprises a winch and a lifting rope, one end of the lifting rope is fixedly connected to the lifting hook, and the winch pulls the lifting basket platform through the lifting rope;
the balance rope adjusts the length of the balance rope according to the position of the hanging basket platform in the water conduit so as to maintain the stability of the hanging basket platform.
The bottom plate supplies the people to trample, and the support frame prevents as the guardrail that the people from turning over. Some radian sections of auxiliary frame butt carry out vertical direction's support to the hanging flower basket platform, if do not have the auxiliary frame, can produce when the radian section and turn on one's side. In the lifting process, the lifting rope always has an included angle with the gravity direction, so that the hanging basket platform can deflect when passing through the radian section and the inclined section under the compensation of the lack of the balance part, and the safety risk is caused. In the lifting process, the included angle between the lifting rope and the gravity direction is constantly changed, the balance rope can also change, and the level and the stability of the hanging basket platform are guaranteed.
When the hanging basket is used, the hanging basket platform leans against the concave radian section, and a plurality of contact points are always in contact with the pipe wall of the water conduit under the action of external force in the lifting process, and the balance is maintained through the combined action of the contact positions of the balance ropes and the pipe wall of the water conduit. The inclined auxiliary frame is in an oval shape, and the structure can be in contact with a plurality of points in the radian section, so that rolling in the radian section under the action of wind force is avoided; in the oblique section, the section of the pipe diameter on the horizontal plane is also elliptical, the hanging basket platform is an approximate inscribed circle of the ellipse, and the water conduit can also be in contact with the hanging basket platform at multiple points under the action of the lifting rope, so that the hanging basket platform can be effectively prevented from rotating automatically; in the outer convex radian section, the inclined auxiliary frame interferes with the radian section, so that the hanging basket platform cannot rotate.
The device avoids the complex process of building a scaffold in the water conduit and the problem of building which may be brought. The stability of the hanging basket platform in the complex bent pipeline is realized through the balance part, and the personal safety of maintainers is guaranteed.
Preferably, the bottom plate is circular, a plurality of virtual line segments passing through the center of the bottom plate are arranged on the bottom plate, the virtual line segments are symmetrical relative to the length direction, intersection points of the virtual line segments at the outer edge of the bottom plate are fixedly connected with balance cranes at corresponding positions of the support frame respectively, and the balance cranes are connected with balance ropes.
The hanging basket platform has two kinds of directions of toppling, be width direction and length direction respectively, and the direction of turning of here setting for the radian section is width direction, and the left and right sides in the following all refers to width direction's both sides. The structure defining the balance crane can be considered as a number on the left side and a number on the right side. And the balance cranes corresponding to the same virtual line segment work correspondingly, so that the hanging basket platform is ensured to be inclined only in the width direction. The level of platform of hanging scaffold can be realized to the pulling force that above-mentioned structure passed through the control of controller and provided by the balanced rope, avoids the hanging basket platform to topple.
Preferably, the balance rope is further connected with a safety lock, and the safety lock locks the steel wire rope and maintains the current length.
When the maintenance personnel find that the balance crane works in error, the safety lock can be opened manually, and the type of the safety lock can be LSG 20.
Preferably, the lifting part further comprises two lifting guide wheels, the lifting guide wheels are arranged in the water conduit, and the lifting guide wheels are arranged on the arc section of the water conduit. The lifting rope and the lifting roller have dynamic friction, so that the lifting rope is prevented from directly having static friction with the radian section of the water diversion pipe, and the safety risk caused by abrasion of the lifting rope is avoided.
Preferably, the side wall of the support frame is provided with a plurality of guide row wheels, and the guide row wheels are arranged at equal intervals along the side wall of the support frame. The structure is used for preventing the hanging basket platform from being blocked and preventing the hanging basket platform from damaging the water conduit to form a local stress concentration area when the hanging basket platform moves to a vertical section or an inclined section.
Preferably, the bottom of the auxiliary frame is provided with a plurality of auxiliary guide wheels. The structure has the same function as the guide travelling wheel in the previous paragraph, and is used for avoiding the clamping of the hanging basket platform in the inclined section and the radian section and also avoiding the local stress concentration area formed by the collision of the hanging basket platform on the water conduit.
Preferably, the inclination angle of the auxiliary frame is adapted to the arc section of the water conduit. Specifically, when the hanging basket platform is in a horizontal state and the lowest part of the auxiliary frame is in a flat section, the other end of the auxiliary frame can be in contact with the radian section of the water conduit.
Since the basket platform is assembled in a flat section, such a structure can reduce the burden on an assembling worker.
Preferably, the balance crane is connected with a hand-operated driver through a clutch in a transmission way. The structure can save oneself through the mode of hand under the prerequisite that driving motor loses power.
Preferably, the balance crane is electrically connected with a controller, and the controller is electrically connected with the winch. The controller judges the height through the winch, and then knows the shape of the water conduit corresponding to the controller in advance, thereby controlling the balance part to work.
Preferably, the balancing line is coupled to the lift line. The balance is realized through different lifting speeds among the balance cranes.
Compared with the prior art, the invention has the beneficial effects that: (1) the device realizes the function of no autorotation by arranging the auxiliary frame, thereby greatly improving the personal safety of maintainers; (2) through the change of the relative length of the balance rope, the balance level of the hanging basket is realized, and the hanging basket cannot be turned on one side.
Drawings
FIG. 1 is a schematic view of a penstock;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a state diagram of the use of the present invention;
in the figure:
hanging flower basket platform 1, bottom plate 2, support frame 3, auxiliary frame 4, balanced rope 5, hoist engine 6, lifting rope 7, virtual line segment 8, balanced loop wheel machine 9, promotion guide pulley 10, direction driving wheel 11, supplementary leading wheel 12, first indent radian section 13, oblique section 14, evagination radian section 15, second indent radian section 16, vertical section 17.
Detailed Description
The present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.
In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.
Example 1:
as shown in fig. 1, the penstock comprises a flat section, a first concave radian section 13, an oblique section 14, a convex radian section 15, a second concave radian section 16 and a vertical section 17, and a multi-radian oblique section 14 penstock mobile maintenance platform, as shown in fig. 2 to 4, comprises:
the hanging basket platform 1 comprises a circular bottom plate 2, a support frame 3 and an auxiliary frame 4, wherein the support frame 3 is fixedly connected to the position, close to the outer edge, of the bottom plate 2, the auxiliary frame 4 is fixedly connected to the lower portion of the bottom plate 2, and the auxiliary frame 4 inclines in the width direction;
the balancing part comprises a lifting hook and a balancing rope 5, and the balancing rope 5 adjusts the length of the balancing rope according to the position of the hanging basket platform 1 in the water conduit so as to maintain the stability of the hanging basket platform 1. Specifically, be equipped with 2 virtual line segments 8 of crossing the 2 centre of a circle of bottom plate on bottom plate 2, virtual line segment 8 is symmetrical with length direction relatively, and virtual line segment 8 is respectively fixedly connected with balanced loop wheel machine 9 (totally 4) in the corresponding position of support frame 3 at the nodical of the outer fringe department of bottom plate 2, and when concrete implementation, each balanced loop wheel machine 9 is equidistant to be arranged at hanging flower basket platform 1, and adjacent balanced loop wheel machine 9 is 90 degrees with circular contained angle. The balance crane 9 is connected with the balance rope 5, the balance crane 9 is electrically connected with a controller (not shown in the figure), and the balance rope 5 is also connected with a safety lock which locks the steel wire rope and maintains the current length.
The promotion portion, the promotion portion includes hoist engine 6 and lifting rope 7, and the one end fixed connection of lifting rope 7 is on the lifting hook, and hoist engine 6 pulls promotion hanging flower basket platform 1 through lifting rope 7, and promotion portion still includes two promotion guide pulleys 10, and promotion guide pulley 10 sets up in the leading water pipe, promotes guide pulley 10 and sets up on the radian section of leading water pipe. The lifting rollers are respectively arranged at the outer convex radian section 15 and the corner position between the outer convex radian section 15 and the vertical section 17.
The lateral wall of support frame 3 is equipped with 7 direction row wheels 11, and direction row wheel 11 is arranged along the lateral wall of support frame 3 equidistant. The bottom of the auxiliary frame 4 is provided with 8 auxiliary guide wheels 12. The inclination angle of the auxiliary frame 4 is adapted to the radian section of the water conduit. The balance crane 9 is connected with a hand-operated driver through the transmission of a clutch. The controller is electrically connected with the winding engine 6.
The hanging basket platform 1 can also be provided with a safety rope which is equivalent to the number of people bearing the largest number.
The balancing ropes 5 comprise a left balancing rope and a right balancing rope, which adjust the clockwise or counterclockwise rotation of the basket platform 1 through the change of the length relationship between the two.
Specifically, when in use, during the lifting process: in the first concave arc section 13, the left side balance rope is shorter than the right side balance rope, and the right side balance rope is tensioned and stressed; when the arc section 15 is convex outwards, the right balance rope contracts and is tensioned to bear force; when the hanging basket platform 1 is separated from the contact with the pipe wall of the water conduit, the left balance rope and the right balance rope are equal in length, and the hanging basket platform 1 is kept horizontal. When passing the lifting guide pulley 10, the lifting guide pulley 10 is located between the adjacent auxiliary guide pulleys 12 or guide row wheels 11 without interference.
Example 2: the present invention also provides, in addition to embodiment 1:
the balance rope 5 is connected with the lifting rope 7, and the balance rope and the lifting rope are connected end to end and pass through a lifting hole in the lifting hook.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.

Claims (9)

1. The utility model provides a platform is overhauld in removal of multi-radian oblique section leading water pipe, characterized by includes:
the hanging basket platform comprises a bottom plate, a support frame and an auxiliary frame, wherein the support frame is fixedly connected to the position, close to the outer edge, of the bottom plate, the auxiliary frame is fixedly connected to the lower portion of the bottom plate, and the auxiliary frame is inclined in the width direction;
the balance part comprises a lifting hook and a plurality of balance ropes connected between the lifting hook and the hanging basket platform;
the lifting part comprises a winch and a lifting rope, one end of the lifting rope is connected to the lifting hook, and the winch pulls the lifting hanging basket platform through the lifting rope;
the balance rope adjusts the length of the balance rope according to the position of the hanging basket platform in the water conduit so as to maintain the stability of the hanging basket platform; the bottom plate is circular, a plurality of virtual line sections passing through the circle center of the bottom plate are arranged on the bottom plate, the virtual line sections are symmetrical relative to the length direction, intersection points of the virtual line sections at the outer edge of the bottom plate are fixedly connected with balance cranes at corresponding positions of the supporting frame respectively, and the balance cranes are connected with balance ropes.
2. The mobile maintenance platform of the multi-radian slope section water conduit according to claim 1, wherein a safety lock is further connected to the balance rope, and locks the steel wire rope and maintains the current length.
3. The mobile maintenance platform of a multi-arc sloped section penstock of claim 1, wherein the lifting section further comprises two lifting guide wheels, the lifting guide wheels are disposed in the penstock, and the lifting guide wheels are disposed on the arc section of the penstock.
4. The mobile maintenance platform of any one of claims 1 to 3, wherein the side wall of the supporting frame is provided with a plurality of guide road wheels, and the guide road wheels are arranged at equal intervals along the side wall of the supporting frame.
5. The mobile maintenance platform for the multi-arc inclined-section water conduit according to claim 4, wherein a plurality of auxiliary guide wheels are arranged at the bottom of the auxiliary frame.
6. The mobile maintenance platform of the multi-arc inclined-section water conduit according to claim 5, wherein the inclination angle of the auxiliary frame is adapted to the arc section of the water conduit.
7. The mobile maintenance platform of the multi-radian slope section diversion pipe of claim 1, wherein the balance crane is electrically connected with a controller, and the controller is electrically connected with a winch.
8. The mobile maintenance platform of claim 1, wherein the balancing rope is coupled to the lifting rope.
9. The mobile maintenance platform of the multi-radian inclined-section water conduit as claimed in claim 1, wherein the hanging basket platform is internally provided with safety ropes corresponding to the number of people to be carried.
CN202110441964.XA 2021-04-23 2021-04-23 Multi-radian inclined-section water diversion pipe moving maintenance platform Pending CN113338235A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2926741Y (en) * 2006-06-29 2007-07-25 宝山钢铁股份有限公司 Pipeline repairing apparatus capable of vertically and turning operation
KR100861402B1 (en) * 2008-03-06 2008-10-02 (주)성풍건설 Elbow Section Perforated Wall Slip Foam Device
CN105484776A (en) * 2015-12-24 2016-04-13 重庆市腾瀚工贸有限公司 Pipe piece hoisting device of shield tunneling machine
CN206203837U (en) * 2016-12-01 2017-05-31 国网甘肃省电力公司刘家峡水电厂 The elevator draw-gear of balance fixing device and power station inclined shaft movable type chassis
CN206539820U (en) * 2017-03-17 2017-10-03 水利部水工金属结构质量检验测试中心 A kind of in-service penstock safety detection cart system in power station
CN210049214U (en) * 2019-03-12 2020-02-11 中国电建集团中南勘测设计研究院有限公司 Overhauling trolley
CN210368816U (en) * 2019-07-04 2020-04-21 东莞市建安集团有限公司 Triangular operation platform for capital construction slope

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2926741Y (en) * 2006-06-29 2007-07-25 宝山钢铁股份有限公司 Pipeline repairing apparatus capable of vertically and turning operation
KR100861402B1 (en) * 2008-03-06 2008-10-02 (주)성풍건설 Elbow Section Perforated Wall Slip Foam Device
CN105484776A (en) * 2015-12-24 2016-04-13 重庆市腾瀚工贸有限公司 Pipe piece hoisting device of shield tunneling machine
CN206203837U (en) * 2016-12-01 2017-05-31 国网甘肃省电力公司刘家峡水电厂 The elevator draw-gear of balance fixing device and power station inclined shaft movable type chassis
CN206539820U (en) * 2017-03-17 2017-10-03 水利部水工金属结构质量检验测试中心 A kind of in-service penstock safety detection cart system in power station
CN210049214U (en) * 2019-03-12 2020-02-11 中国电建集团中南勘测设计研究院有限公司 Overhauling trolley
CN210368816U (en) * 2019-07-04 2020-04-21 东莞市建安集团有限公司 Triangular operation platform for capital construction slope

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