[go: up one dir, main page]

CN105645248A - Reinforcement cage lifting device and method - Google Patents

Reinforcement cage lifting device and method Download PDF

Info

Publication number
CN105645248A
CN105645248A CN201610177732.7A CN201610177732A CN105645248A CN 105645248 A CN105645248 A CN 105645248A CN 201610177732 A CN201610177732 A CN 201610177732A CN 105645248 A CN105645248 A CN 105645248A
Authority
CN
China
Prior art keywords
reinforcement cage
steel reinforcement
lifting
wheel machine
loop wheel
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.)
Granted
Application number
CN201610177732.7A
Other languages
Chinese (zh)
Other versions
CN105645248B (en
Inventor
孟祥源
钱育强
单晓东
彭华
吴琼明
王志强
杨浩
侯建平
梁紫艳
张金翠
杨康康
路昊
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.)
Sixth Engineering Co Ltd Of Cccc Fourth Highway Engineering Co Ltd
CCCC Fourth Highway Engineering Co Ltd
Original Assignee
Sixth Engineering Co Ltd Of Cccc Fourth Highway Engineering Co Ltd
CCCC Fourth Highway Engineering 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 Sixth Engineering Co Ltd Of Cccc Fourth Highway Engineering Co Ltd, CCCC Fourth Highway Engineering Co Ltd filed Critical Sixth Engineering Co Ltd Of Cccc Fourth Highway Engineering Co Ltd
Priority to CN201610177732.7A priority Critical patent/CN105645248B/en
Publication of CN105645248A publication Critical patent/CN105645248A/en
Application granted granted Critical
Publication of CN105645248B publication Critical patent/CN105645248B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12Slings comprising chains, wires, ropes, or bands; Nets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/04Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The invention provides a reinforcement cage lifting device and method. A carrying pole beam arranged horizontally is connected under a lifting hook of a crane, two ends of the bottom of the carrying pole beam are provided with two fixed pulleys, a lifting rope passes by the two fixed pulleys, and two ends of the lifting rope are respectively provided with pothooks connected with lifting ends of a reinforcement cage; the crane is further provided with a winch, a pulling rope of the winch is hung at the position of 1/3 and 2/3 of the length of the reinforcement cage from the lifting ends to the reinforcement cage by the two pothooks; a lifting arm of the crane is lifted upwards, and in a lifting process, the lifting rope of the carrying pole beam and the pulling rope of the winch are similarly stressed, so that the reinforcement cage is lifted and a horizontal state is kept; when the reinforcement cage is lifted to a certain height, the winch releases the pulling gradually, the height of the other end of the reinforcement cage is reduced gradually, and the reinforcement cage is kept to keep clear of the ground until the reinforcement cage is fully in a vertical state.

Description

A kind of steel reinforcement cage lifting device and method
Technical field
The present invention relates to a kind of pile foundation steel bar cage boom hoisting and construction method thereof, belong to all kinds of reinforcing bar cage hoisting technical field of construction in railway, highway.
Background technology
Before pile foundation concrete perfusion, steel reinforcement cage to be filled to stake holes infantile tic. The commonly used loop wheel machine lifting of reinforcing bar cage hoisting; but current lifting mode is usually some lifting; namely loop wheel machine hangs steel reinforcement cage one end lifting of horizontal positioned; steel reinforcement cage becoming vertical state, transfers in stake holes, hoisting process steel reinforcement cage is easily deformed; perpendicularity is poor; cause in hole steel reinforcement cage hole clipping or cause protective layer not enough, being also easy to cause pass mould difficulty, affect construction quality and construction speed.
Summary of the invention
It is an object of the invention to that current reinforcement cage hoisting is installed the weak point existed and carry out technological improvement, a kind of hanging apparatus that can guarantee that reinforcing bar cage hoisting quality and method are provided, guarantee that reinforcing bar cage hoisting process safety is stably, makes steel reinforcement cage indeformable, enter stake holes convenience, close mould simplicity.
For achieving the above object, the invention provides a kind of steel reinforcement cage lifting device, including loop wheel machine, it is characterized in that: the suspension hook at loop wheel machine is connected below a horizontally disposed shoulder pole girder, the two ends, top of described shoulder pole girder are respectively provided with hanger, and hanger is connected with crane hook by lanyard, and the two ends, bottom of described shoulder pole girder set two fixed pulleys, one lifting rope through described two fixed pulleys, lifting rope be respectively arranged at two ends with hook; Being additionally provided with hoist engine on loop wheel machine, the pull rope of hoist engine walks around loop wheel machine arm front end and sagging, and the low end of pull rope is divided into two strands, and each strand steel wire rope connects a hook respectively.
For achieving the above object, present invention also offers a kind of method adopting said apparatus to carry out reinforcement cage hoisting, comprise the following steps:
(1) under the suspension hook of loop wheel machine, a horizontally disposed shoulder pole girder is connected, the two ends, bottom of described shoulder pole girder are provided with two fixed pulleys, one lifting rope is walked around two fixed pulleys, and the two ends of lifting rope, along steel reinforcement cage diametric(al), connect 2 points on the lifting end of steel reinforcement cage respectively through hook;
(2) loop wheel machine sets a hoist engine, it is sagging that loop wheel machine arm front end walked around by the pull rope of hoist engine, the low end of pull rope is divided into two strands, every one is equipped with hook, one hook hangs over the steel reinforcement cage 1/3 place at lifting end to length of reinforcing cage, and another hangs over the other end from steel reinforcement cage and plays 1/3 place of length of reinforcing cage;
(3) loop wheel machine arm is lifted up, and keeps shoulder pole girder lifting rope stress same with hoist engine pull rope, make steel reinforcement cage be lifted and keep level in lifting process;
(4), after steel reinforcement cage rises certain altitude, hoist engine loosens pull rope gradually, makes the other end height of steel reinforcement cage be gradually reduced; Simultaneously loop wheel machine makes reinforcement cage hoisting end keep suitably height, with keep the steel reinforcement cage other end when declining not in contact with the ground all the time, until steel reinforcement cage is completely in vertical state;
(5) steel reinforcement cage of vertical state is hung and installs toward stake holes by loop wheel machine.
The present invention arranges pulley gear on loop wheel machine; and coordinate lifting with hoist engine by loop wheel machine; steel reinforcement cage is made to be become uniform force in vertical process by level; avoid the deformation of steel reinforcement cage, it is ensured that vertically spend after reinforcement cage hoisting, it is to avoid after reinforcement cage hoisting, deflection causes the steel reinforcement cage to enter stake holes hole clipping; the protective layer thickness of steel reinforcement cage after ensure that hand-hole or closing mould; apparatus of the present invention simple in construction, method easy construction, construction quality can be effectively improved.
Accompanying drawing explanation
Fig. 1 is the steel reinforcement cage lifting device structural representation of the present invention;
Fig. 2 is the mode schematic diagram that the present invention lifts by crane steel reinforcement cage, and steel reinforcement cage is lifted by crane by level;
Fig. 3 is the process schematic that the steel reinforcement cage that the present invention lifts by crane is turned vertical state by level;
Fig. 4 is that the steel reinforcement cage that the present invention lifts by crane changes into vertical view completely.
Detailed description of the invention
Below in conjunction with accompanying drawing, assembly of the invention structures and methods are illustrated.
As shown in Figure 1, a kind of steel reinforcement cage lifting device provided by the invention, including loop wheel machine 1, suspension hook 2 at loop wheel machine 1 is connected below a horizontally disposed shoulder pole girder 3, the two ends, top of described shoulder pole girder 3 are respectively provided with hanger 4, and hanger 4 is connected with crane hook 2 by lanyard 5, and the two ends, bottom of described shoulder pole girder 3 set two fixed pulleys 6, one lifting rope 7 through described two fixed pulleys 6, lifting rope 7 be respectively arranged at two ends with hook 8; Being additionally provided with hoist engine 9 on loop wheel machine 1, the pull rope 10 of hoist engine 9 walks around loop wheel machine arm 11 front end and sagging, and the low end of pull rope 10 is divided into two strands, and each strand steel wire rope connects a hook respectively.
For adapting to the reinforcing bar cage hoisting of different-diameter, the present invention can set multiple same fixed pulley again between two fixed pulleys 6 set by the two ends, bottom of described shoulder pole girder 3. During use, according to steel reinforcement cage diameter, lifting rope walked around by the pulley selecting two distances suitable with steel reinforcement cage diameter.
The present invention adopts said apparatus, and the concrete grammar of lifting steel reinforcement cage is as follows:
As shown in Figure 2, suspension hook at loop wheel machine connects a horizontally disposed shoulder pole girder 32 times, the two ends, bottom of described shoulder pole girder 3 are provided with two fixed pulleys 6, one lifting rope 7 is walked around two fixed pulleys 6, the two ends of lifting rope 7 are along steel reinforcement cage 12 diametric(al) to be lifted, respectively through 2 points on the lifting end of hook mounting steel reinforcement cage 12;
Setting a hoist engine on loop wheel machine, the pull rope 10 of hoist engine walks around that loop wheel machine arm 11 front end is sagging, and the low end of pull rope is divided into two strands, and often one is equipped with hook, and a hook hangs over the steel reinforcement cage 1/3 place at lifting end to length of reinforcing cage; Another hangs over 2/3 place at lifting end to length of reinforcing cage, that is plays 1/3 place of length of reinforcing cage from the other end of steel reinforcement cage;
When steel reinforcement cage 12 lifts by crane, loop wheel machine arm 11 is lifted up, and keeps shoulder pole girder lifting rope 7 stress same with hoist engine pull rope 10, make steel reinforcement cage 12 be lifted and keep level in lifting process;
As shown in Figure 3, Figure 4, after steel reinforcement cage 12 rises certain altitude, hoist engine loosens pull rope 10 gradually, makes the other end height of steel reinforcement cage 12 be gradually reduced; Now lifting rope 7 can slide around fixed pulley 6, make reinforcement cage hoisting end two suspension centre uniform force, steel reinforcement cage unbalance stress is avoided to cause deformation, loop wheel machine makes reinforcement cage hoisting end keep suitably height simultaneously, to keep the steel reinforcement cage other end not to be advisable with earth surface all the time when declining, steel reinforcement cage end is avoided to be caused deformation by ground extruding, until steel reinforcement cage is completely in vertical state, now to slide into two ends length equal for lifting rope 7, reinforcement cage hoisting end two suspension centre stress is consistent, and the steel reinforcement cage of vertical state is hung by loop wheel machine to be installed toward stake holes.

Claims (3)

1. a steel reinforcement cage lifting device, including loop wheel machine, it is characterized in that: the suspension hook at loop wheel machine is connected below a horizontally disposed shoulder pole girder, the two ends, top of described shoulder pole girder are respectively provided with hanger, hanger is connected with crane hook by lanyard, the two ends, bottom of described shoulder pole girder set two fixed pulleys, a lifting rope through described two fixed pulleys, lifting rope be respectively arranged at two ends with hook; Being additionally provided with hoist engine on loop wheel machine, the pull rope of hoist engine walks around loop wheel machine arm front end and sagging, and the low end of pull rope is divided into two strands, and each strand steel wire rope connects a hook respectively.
2. steel reinforcement cage lifting device according to claim 1, it is characterised in that: it is additionally provided with multiple same fixed pulley between two fixed pulleys set by two ends, bottom of described shoulder pole girder.
3. a reinforcement cage hoisting method, it is characterised in that comprise the following steps:
(1) under the suspension hook of loop wheel machine, a horizontally disposed shoulder pole girder is connected, the two ends, bottom of described shoulder pole girder are provided with two fixed pulleys, one lifting rope is walked around two fixed pulleys, and the two ends of lifting rope, along steel reinforcement cage diametric(al), connect 2 points on the lifting end of steel reinforcement cage respectively through hook;
(2) loop wheel machine sets a hoist engine, it is sagging that loop wheel machine arm front end walked around by the pull rope of hoist engine, the low end of pull rope is divided into two strands, every one is equipped with hook, one hook hangs over the steel reinforcement cage 1/3 place at lifting end to length of reinforcing cage, and another hangs over the other end from steel reinforcement cage and plays 1/3 place of length of reinforcing cage;
(3) loop wheel machine arm is lifted up, and keeps shoulder pole girder lifting rope stress same with hoist engine pull rope, make steel reinforcement cage be lifted and keep level in lifting process;
(4), after steel reinforcement cage rises certain altitude, hoist engine loosens pull rope gradually, makes the other end height of steel reinforcement cage be gradually reduced; Simultaneously loop wheel machine makes reinforcement cage hoisting end keep suitably height, with keep the steel reinforcement cage other end when declining not in contact with the ground all the time, until steel reinforcement cage is completely in vertical state;
(5) steel reinforcement cage of vertical state is hung and installs toward stake holes by loop wheel machine.
CN201610177732.7A 2016-03-24 2016-03-24 A kind of steel reinforcement cage lifting device and method Expired - Fee Related CN105645248B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610177732.7A CN105645248B (en) 2016-03-24 2016-03-24 A kind of steel reinforcement cage lifting device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610177732.7A CN105645248B (en) 2016-03-24 2016-03-24 A kind of steel reinforcement cage lifting device and method

Publications (2)

Publication Number Publication Date
CN105645248A true CN105645248A (en) 2016-06-08
CN105645248B CN105645248B (en) 2017-08-08

Family

ID=56494481

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610177732.7A Expired - Fee Related CN105645248B (en) 2016-03-24 2016-03-24 A kind of steel reinforcement cage lifting device and method

Country Status (1)

Country Link
CN (1) CN105645248B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107042582A (en) * 2017-06-07 2017-08-15 中国联合装备集团安阳机械有限公司 Cylinder mould distribution apparatus in being manufactured for combined wall board
CN107188021A (en) * 2017-06-15 2017-09-22 中交航局第工程有限公司 The pile hanging method of super-length prestressed concrete-pile
CN108086309A (en) * 2017-12-14 2018-05-29 中交第四航务工程局有限公司 A kind of mini pile cages installation method
CN109179236A (en) * 2018-08-30 2019-01-11 成都产品质量检验研究院有限责任公司 The semi-automatic self-balance lifting device of bus duct vertical state temperature rise test
CN110217686A (en) * 2019-05-18 2019-09-10 陕西建工第五建设集团有限公司 A kind of put down based on the flat steel reinforcement cage for hanging equipment of steel reinforcement cage hangs method
CN110258534A (en) * 2019-06-17 2019-09-20 中南大学 A kind of device and method for guaranteeing ground-connecting-wall steel reinforcement cage and vertically hanging
CN111498678A (en) * 2020-03-16 2020-08-07 河北建设勘察研究院有限公司 Special lifting appliance for lifting cast-in-place pile overlong reinforcement cage and lifting method thereof
CN114275660A (en) * 2021-12-21 2022-04-05 中铁大桥局集团第五工程有限公司 Simple hoisting device and rapid hoisting method for steel reinforcement cage
CN114352804A (en) * 2022-03-17 2022-04-15 中铁九局集团第四工程有限公司 Construction method for underground small-space corrugated pipe to pass through pipeline by using track pulley
CN114620591A (en) * 2022-03-21 2022-06-14 江苏宏强电气集团有限公司 Switch cabinet hoisting mechanism, hoisting method and switch cabinet
CN116332036A (en) * 2023-05-30 2023-06-27 河南省第二建筑工程发展有限公司 Steel reinforcement cage lifts by crane hoisting device
CN116374824A (en) * 2023-04-19 2023-07-04 中核四0四有限公司 Method, device and equipment for determining erection control parameters of container

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2631946A (en) * 2023-07-18 2025-01-22 Sapphire Balconies Ltd Balcony manipulator and method for manipulating balcony

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201362553Y (en) * 2008-12-30 2009-12-16 中铁大桥局集团第四工程有限公司 Aquatic large-sized reinforcing cage hoisting roll-over device
CN202080812U (en) * 2011-05-05 2011-12-21 中交四航局第一工程有限公司 Dedicated sling system for large-scaled reinforcing cage
CN203173684U (en) * 2012-11-29 2013-09-04 中交第一公路工程局有限公司 Component for hoisting reinforcement cage
CN205527302U (en) * 2016-03-24 2016-08-31 中交第四公路工程局有限公司 Steel reinforcement cage hoisting accessory

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201362553Y (en) * 2008-12-30 2009-12-16 中铁大桥局集团第四工程有限公司 Aquatic large-sized reinforcing cage hoisting roll-over device
CN202080812U (en) * 2011-05-05 2011-12-21 中交四航局第一工程有限公司 Dedicated sling system for large-scaled reinforcing cage
CN203173684U (en) * 2012-11-29 2013-09-04 中交第一公路工程局有限公司 Component for hoisting reinforcement cage
CN205527302U (en) * 2016-03-24 2016-08-31 中交第四公路工程局有限公司 Steel reinforcement cage hoisting accessory

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107042582A (en) * 2017-06-07 2017-08-15 中国联合装备集团安阳机械有限公司 Cylinder mould distribution apparatus in being manufactured for combined wall board
CN107188021A (en) * 2017-06-15 2017-09-22 中交航局第工程有限公司 The pile hanging method of super-length prestressed concrete-pile
CN108086309A (en) * 2017-12-14 2018-05-29 中交第四航务工程局有限公司 A kind of mini pile cages installation method
CN108086309B (en) * 2017-12-14 2023-11-21 中交第四航务工程局有限公司 Mini pile reinforcement cage installation method
CN109179236A (en) * 2018-08-30 2019-01-11 成都产品质量检验研究院有限责任公司 The semi-automatic self-balance lifting device of bus duct vertical state temperature rise test
CN109179236B (en) * 2018-08-30 2023-12-01 成都产品质量检验研究院有限责任公司 Semi-automatic self-balancing lifting device for bus duct vertical state temperature rise test
CN110217686A (en) * 2019-05-18 2019-09-10 陕西建工第五建设集团有限公司 A kind of put down based on the flat steel reinforcement cage for hanging equipment of steel reinforcement cage hangs method
CN110217686B (en) * 2019-05-18 2020-08-11 陕西建工第五建设集团有限公司 Steel reinforcement cage horizontal hoisting method based on steel reinforcement cage horizontal hoisting equipment
CN110258534A (en) * 2019-06-17 2019-09-20 中南大学 A kind of device and method for guaranteeing ground-connecting-wall steel reinforcement cage and vertically hanging
CN110258534B (en) * 2019-06-17 2024-01-30 中南大学 Device and method for guaranteeing vertical hoisting of diaphragm wall reinforcement cage
CN111498678A (en) * 2020-03-16 2020-08-07 河北建设勘察研究院有限公司 Special lifting appliance for lifting cast-in-place pile overlong reinforcement cage and lifting method thereof
CN111498678B (en) * 2020-03-16 2021-08-10 河北建设勘察研究院有限公司 Special lifting appliance for lifting cast-in-place pile overlong reinforcement cage and lifting method thereof
CN114275660B (en) * 2021-12-21 2024-10-15 中铁大桥局集团第五工程有限公司 Simple hoisting device and quick hoisting method for reinforcement cage
CN114275660A (en) * 2021-12-21 2022-04-05 中铁大桥局集团第五工程有限公司 Simple hoisting device and rapid hoisting method for steel reinforcement cage
CN114352804A (en) * 2022-03-17 2022-04-15 中铁九局集团第四工程有限公司 Construction method for underground small-space corrugated pipe to pass through pipeline by using track pulley
CN114352804B (en) * 2022-03-17 2022-06-24 中铁九局集团第四工程有限公司 Construction method for underground small-space corrugated pipe to pass through pipeline by using track pulley
CN114620591A (en) * 2022-03-21 2022-06-14 江苏宏强电气集团有限公司 Switch cabinet hoisting mechanism, hoisting method and switch cabinet
CN116374824A (en) * 2023-04-19 2023-07-04 中核四0四有限公司 Method, device and equipment for determining erection control parameters of container
CN116374824B (en) * 2023-04-19 2024-10-15 中核四0四有限公司 Method, device and equipment for determining erection control parameters of container
CN116332036B (en) * 2023-05-30 2023-08-04 河南省第二建筑工程发展有限公司 Steel reinforcement cage lifts by crane hoisting device
CN116332036A (en) * 2023-05-30 2023-06-27 河南省第二建筑工程发展有限公司 Steel reinforcement cage lifts by crane hoisting device

Also Published As

Publication number Publication date
CN105645248B (en) 2017-08-08

Similar Documents

Publication Publication Date Title
CN105645248A (en) Reinforcement cage lifting device and method
CN113387267B (en) Safe hoisting and lowering method for underground diaphragm wall reinforcement cage
CN204958134U (en) Prefabricated floor plate special hoisting bar
CN108678752B (en) Shaft equipment rapid installation process
CN103397629B (en) The disposable construction method for hanging of overlength reinforcing cage
CN115450173B (en) Tidal sea area ship backing component mounting device and construction method
CN205527302U (en) Steel reinforcement cage hoisting accessory
CN206767425U (en) A kind of integral hoisting device for rapid for ground-connecting-wall steel reinforcement cage
CN210214612U (en) Radiant cable crane hoisting system in tunnel anchor
CN105645275A (en) Cable hoisting crane and construction method thereof
CN115043306A (en) An overweight ground-connecting wall and segmented double-machine hoisting device and its hoisting method
CN106185618B (en) One kind is used for Generator Stator hoisting structure and its hanging method
CN112265919B (en) A self-balancing static drilling root pile hoisting and threading device and construction method thereof
CN112265920B (en) A static drill root pile hoisting and threading device and construction method thereof
CN211691536U (en) Simple lifting mechanism for bare concrete exterior wall cladding
CN113928978A (en) Hoisting construction method for preventing basement steel column from being hung in deep foundation pit supporting position
CN107974946B (en) A kind of long hoist cable installation auxiliary device of suspension bridge and preparation method thereof and application method
CN217376980U (en) double-T-beam self-balancing hoisting sling
CN205397929U (en) Equipment is lifted by crane to wane formula for building
CN201857225U (en) Hoisting device for bridge crane frame
CN105155427A (en) Construction method for laying suspension bridge catwalk
CN108360524A (en) One kind preventing superfilled device and its application method
CN203128003U (en) Special hanger for cast-in-situ bored pile steel reinforcement cage
CN106436782A (en) High-strain detection super-large hammer self-beating device and application method
CN209052274U (en) PC precast floor slab pulley suspender

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170808