CN110371660A - Floor moving device - Google Patents

Floor moving device Download PDF

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Publication number
CN110371660A
CN110371660A CN201910698296.1A CN201910698296A CN110371660A CN 110371660 A CN110371660 A CN 110371660A CN 201910698296 A CN201910698296 A CN 201910698296A CN 110371660 A CN110371660 A CN 110371660A
Authority
CN
China
Prior art keywords
cylinder
floor
top plate
moving device
floor moving
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
CN201910698296.1A
Other languages
Chinese (zh)
Inventor
刘蓓蕾
苏萌
于振江
李彦汶
高岩
赵丛
高尚
刘卫欢
张蓓蓓
靳伟
陈岩
崔开
王焕霞
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.)
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Xingtai Power Supply Co of State Grid Hebei 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.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Hebei Electric Power Co Ltd, Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201910698296.1A priority Critical patent/CN110371660A/en
Publication of CN110371660A publication Critical patent/CN110371660A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/90Devices for picking-up and depositing articles or materials
    • B65G47/901Devices for picking-up and depositing articles or materials provided with drive systems with rectilinear movements only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/40Safety features of loads, equipment or persons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Floor Finish (AREA)

Abstract

The present invention provides a kind of floor moving devices, belong to electric power maintenance technical field of tools, including bracket, hoisting mechanism, grasping mechanism and lodging bench;Bracket includes top plate and the supporting leg for being used to support top plate;Hoisting mechanism is set to the inside of bracket, including several cylinders and the air pump being connected to cylinder;Cylinder is vertically arranged, and bottom and the top plate of the cylinder barrel of cylinder are slidably connected;Grasping mechanism includes the vacuum pump for being respectively arranged at the sucker of the end of piston rod of cylinder and being separately connected with sucker;Lodging bench is horizontally placed on the inside of bracket, and the spacing of lodging bench and top plate is greater than the length of the cylinder barrel of cylinder.Floor moving device provided by the invention, whole process exerts a force without artificial, not only laborsaving, but also operates reliable.

Description

Floor moving device
Technical field
The invention belongs to electric power maintenance technical field of tools, are to be related to a kind of floor moving device more specifically.
Background technique
Currently, most of substation's computer room inner cable and electric power communication optical cable are downward cabling mode, cable is laid in machine In the cable passage of the lower section of antistatic floor in room, when increasing the work such as cable laying, trouble shoot, need antistatic Floor is removed, and the cable passage of lower section is exposed.Currently, floor, which is moved, generally holds vacuum using manually carrying or staff The handle of sucker lifts antistatic floor, but antistatic floor area is big, heavier-weight, manually lifts more arduously, removes Even there are a degree of security risks for surrounding running equipment to the person for fortune process, therefore, manually move the safety on floor Property is to be improved.
Summary of the invention
The purpose of the present invention is to provide a kind of floor moving devices, to solve antistatic floor existing in the prior art Move that process is more laborious and improper technical problem easy to operate.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of floor moving device, including bracket, promoted Mechanism, grasping mechanism and lodging bench;
Bracket includes top plate and the supporting leg for being used to support the top plate;
Hoisting mechanism is set to the inside of the bracket, including several cylinders and connects respectively with cylinder described in several Logical air pump;Several described cylinders are vertically arranged, and the bottom of the cylinder barrel of the cylinder is slidably connected with the top plate;
Grasping mechanism includes that several are respectively arranged at the sucker of the piston rod end of several cylinders and several A vacuum pump being separately connected with the sucker;
Lodging bench is horizontally placed on the inside of the bracket, and the spacing of the lodging bench and the top plate is greater than the cylinder Cylinder barrel length.
Further, the lower surface level of the top plate is equipped with sliding rail, the bottom of the cylinder barrel of the cylinder be equipped with it is described The sliding block that sliding rail matches.
Further, one end of the sliding rail is equipped with motor, and the inside of the sliding rail is equipped with for connecting the motor The leash of output shaft and the sliding block.
Further, the both ends of the sliding rail are respectively equipped with driving pulley and driven pulley, and the leash bypasses respectively It is end to end after the driving pulley and the driven pulley, the output axis connection of the driving pulley and the motor.
Further, between the output shaft of the motor and the driving pulley be equipped with retarder, the retarder it is defeated Enter the output axis connection at end with the motor, the output end of the retarder is connect with the driving pulley.
Further, the top plate be equipped with controller, the controller respectively with the motor, the air pump and institute State vacuum pump electrical connection.
Further, it is switched in the top of the lodging bench equipped with first stroke on the supporting leg, the first stroke is opened Pass is electrically connected with the controller.
Further, the both ends of the sliding rail are respectively equipped with second stroke switch and third trip switch, second row Cheng Kaiguan and third trip switch are electrically connected with the controller respectively.
Further, the bottom of the supporting leg is equipped with universal wheel, and the universal wheel is equipped with self-locking device.
Further, the upper surface of the lodging bench is equipped with non-slip mat.
The beneficial effect of floor moving device provided by the invention is: compared with prior art, floor of the present invention is moved Bracket is moved to above the floor for needing to move by device, opens air pump to cylinder charge, and the piston rod of cylinder extends downwards, Until the upper surface on sucker and floor is in close contact, vacuum pump is opened, suction cup interior forms negative pressure, sucker suction floor, control Air pump is deflated, and the piston rod of cylinder shrinks upwards, floor is promoted, and after hoisting depth is higher than lodging bench, horizontal moving cylinder will Floor is transferred on lodging bench, and control vacuum pump is inflated into sucker, and sucker is separated with floor, and floor is placed in lodging bench, so Bracket to be removed afterwards, is organized work to underfloor cable, whole process exerts a force without artificial, and it is not only laborsaving, and also operating can Lean on, substantially increase the safety of service work in substation's computer room, largely reduce manually move floor to the person and Security risk caused by equipment.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram one of floor moving device provided in an embodiment of the present invention;
Fig. 2 is the structural schematic diagram two of floor moving device provided in an embodiment of the present invention;
Fig. 3 is the A direction view in Fig. 1;
Fig. 4 is the structural schematic diagram of sliding rail provided in an embodiment of the present invention;
Fig. 5 is the B-B direction cross-sectional view in Fig. 4;
Wherein, each appended drawing reference in figure:
1, top plate;2, supporting leg;3, cylinder;31, cylinder barrel;32, piston rod;4, sucker;5, air pump;6, vacuum pump;7, it stores Platform;8, sliding rail;9, controller;10, first stroke switchs;11, second stroke switchs;12, third trip switchs;13, universal wheel; 14, floor.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only To explain the present invention, it is not intended to limit the present invention.
Now floor moving device provided by the invention is illustrated.
Also referring to Fig. 1 to Fig. 3, floor moving device, including bracket, hoisting mechanism, grasping mechanism and lodging bench 7, Bracket includes top plate 1 and the supporting leg 2 for being used to support top plate 1, and supporting leg 2 disperses the edge for being mounted on top plate 1, the top of supporting leg 2 with Top plate 1 connects.Hoisting mechanism is arranged in the inside of bracket, i.e., the inside of supporting leg 2, top plate 1 lower section, hoisting mechanism includes several A cylinder 3 and the air pump 5 being connected to respectively with each cylinder, each cylinder 3 are vertically arranged, and the piston rod 32 of cylinder 3 Be arranged downward, the cylinder barrel 31 of cylinder 3 it is bottom-up, and the bottom of cylinder barrel 31 and the lower surface of top plate 1 are slidably connected, i.e. cylinder The bottom of cylinder 31 can be along the lower surface horizontal sliding of top plate 1.Grasping mechanism includes the piston for being separately positioned on several cylinders 3 The sucker 4 of the end of bar 32 and the vacuum pump 5 being connected to sucker 4, air pump 5 and vacuum pump 6 are all fixed on the upper table of top plate 1 Face, air pump 5 are connected to each cylinder 3 respectively by the first tracheae, and vacuum pump 6 is connected with each sucker 4 respectively by the second tracheae It is logical.Lodging bench 7 is horizontally set on the lower section of top plate 1, and lodging bench 7 is greater than the length of the cylinder barrel 31 of cylinder 3 at a distance from top plate 1 Degree because the floor 14 adsorbed is promoted to the lower section of cylinder barrel 31 by sucker 7 after cylinder 3 recycles, floor 14 and top plate 1 away from From the length for being slightly larger than cylinder barrel 31, cylinder barrel 31 is driven during 14 transverse translation of floor, it is ensured that floor 14 is located at lodging bench 7 Top, and cannot collide with lodging bench 7.
Bracket is moved to the floor 14 for needing to move compared with prior art by floor moving device provided by the invention 5 air pumps are opened to 3 cylinder charges in top, and 32 piston rods of 3 cylinders extend downwards, until sucker 4 and the upper surface on floor 14 are tight Vacuum pump 6 is opened in contiguity touching, and negative pressure, 4 absorption floor 14 of sucker are formed inside sucker 4, and control air pump 5 is deflated, the work of cylinder 3 Stopper rod 32 is shunk upwards, and floor 14 is promoted, and after hoisting depth is higher than lodging bench 7, horizontal moving cylinder 3 shifts floor 14 To lodging bench 7, control vacuum pump 6 is inflated into sucker 4, and sucker 4 is separated with floor 14, and floor 14 is placed in lodging bench 7, so Bracket to be removed afterwards, is organized work to the cable under floor 14, whole process exerts a force without artificial, and it is not only laborsaving, but also operate Reliably.
Also referring to Fig. 1 to Fig. 3, as a kind of specific embodiment of floor moving device provided by the invention, top The lower surface of plate 1 is horizontally disposed with sliding rail 8, and the bottom of the cylinder barrel 31 of cylinder 3 is set to the sliding block that sliding rail 8 matches, passes through sliding block It is slid in sliding rail 8, realizes the horizontal displacement of cylinder 3.
Specifically, in the present embodiment, top plate 1 is set as rectangular plate, and the quadrangle of top plate 1 is respectively equipped with a supporting leg 2, and four The common roof supporting 1 of supporting leg 2, support are more firm.Four cylinders 3 of setting altogether, four rectangular distributions of cylinder 3, i.e., four Cylinder 3 surrounds rectangle, and sliding rail 8 is arranged in parallel two, and two cylinders 3 are located on same sliding rail 8.The piston rod of four cylinders 3 32 end is mounted on sucker 4, when absorption floor 14, four suckers 4 are right respectively because of the generally rectangular cross-section floor in floor 14 Four angles on quasi- floor 14,14 level of floor is lifted, and four suckers 4 divide equally the gravity on floor 14, can more smoothly will Floor 14 lifts.
Preferably, two sliding rails 8 are bolted on the lower surface of top plate 1 respectively, so sliding rail 8 is relative to top plate 1 Position is detachably connected, for various sizes of bottom plate 14, by adjusting the spacing of two sliding rails 8 and being located on same sliding rail 8 Two cylinders 3 spacing, the spacing of adjustable four suckers 4 guarantees the quadrangle of four suckers, 4 absorption floor 14.
It is slided referring to Figure 4 together with Fig. 5 as a kind of specific embodiment of floor moving device provided by the invention One end of rail 8 is equipped with motor, and the inside of sliding rail 8 is equipped with leash 83, one end of leash 83 on the output shaft of motor, The other end is connected to the bottom of cylinder barrel 31, and after opening motor, motor pulls leash 83, and leash 83 pulls cylinder barrel 31 along sliding rail 8 is mobile.
Preferably, the both ends of sliding rail 8 are respectively equipped with driving pulley 81 and driven pulley 82, driving pulley 81 and driven pulley 82 position can be interchanged, as long as guaranteeing that motor is connect with driving pulley 81.Leash 83 successively bypasses driving pulley 81 With it is end to end after driven pulley 82, formed closed loop, and leash 83 formed closed loop after, be in tight state, leash 83 Inner surface and driving pulley 81 and driven pulley 82 be in close contact.The output shaft of motor is connect with driving pulley 81, opens electricity After machine, the rotation of motor drives driving pulley 81 to rotate, and driving pulley 82 drives leash 83 to move, the bottom of cylinder barrel 31 with lead Leader tape 83 connects, because the movement band moveable cylinder 31 of leash 83 is moved along sliding rail 8.
Preferably, the motor of selection is clockwise and anticlockwise motor, when motor rotates and reverse, drives leash 83 along opposite respectively Direction movement, after 4 absorption floor 14 of sucker, the piston rod 32 of control cylinder 3 is recycled, and floor 14 is lifted, then forward direction is opened Motor is opened, motor drives 83 forward motion of leash, 14 level of floor is transported to the top of lodging bench 7.Under floor 14 Cable laying or maintenance after the completion of, the piston rod 32 of absorption floor 14 again of sucker 4, cylinder 3 recycles, and floor 14 is mentioned It rises, then reversely opens motor, motor drives 83 counter motion of leash, and 14 level of floor is transported to the vacancy for needing to be laid with The surface of position, then the piston rod 32 of cylinder 3 extends, and floor 14 is transported downwards, the position of bracket is adjusted when transporting, Floor 14 is set to be embedded in original position.
As a kind of specific embodiment of floor moving device provided by the invention, the revolving speed of motor is very fast, in order to drop The operating rate of low leash 83, installs retarder between motor and driving pulley 81, the input terminal of retarder and motor Axis connection is exported, the output end of retarder is connect with driving pulley 81.
Referring to Fig. 1, a kind of specific embodiment as floor moving device provided by the invention, the upper table of top plate 1 Controller 9 is arranged in face, and controller is connected respectively at motor, air pump 5 and vacuum pump 6 by conducting wire, and controller is equipped with and is used for Control the button of motor positive and inverse, for controlling air pump 5 to the button of 3 inflation/deflation of cylinder and for controlling 6 pairs of vacuum pump suctions The button of disk 4 suction and inflation, by operating controller, floor 14 is moved in realization.
Referring to Fig. 3, a kind of specific embodiment as floor moving device provided by the invention, in depositing on supporting leg 2 The top for putting platform 7 is equipped with first stroke switch 10, and first stroke switch 10 is electrically connected with controller 9, the promotion floor 14 of cylinder 3 to At first stroke switch 10, first stroke switch 10 is triggered, first stroke switch 10 controls air pump 5 by controller 9, stops gas The recycling of cylinder 3, while motor operation is controlled by controller 9, floor 14 is moved horizontally to the surface of lodging bench 7.
Referring to Fig. 3, a kind of specific embodiment as floor moving device provided by the invention, the both ends of sliding rail 8 Being respectively equipped with second stroke switch 11 and third trip switch 12 cannot be by cylinder when leash 83 drives 3 horizontal displacement of cylinder 3 tractions can all trigger second stroke and hold to the outside of sliding rail 8 so cylinder 3 moves to the either end of sliding rail 8 with leash 83 Pass 11 or third trip switch 12, second stroke switch 11 and third trip switch 12 are electrically connected respectively at controller 9, and second It is out of service that travel switch 11 and third trip switch 12 can control motor after triggering.
Referring to Fig. 5, in order to further ensure cylinder 3 is not fallen with leash 83 from the end of sliding rail 8, in sliding rail 8 Both ends are respectively provided with end cap 84.
Referring to Fig. 1, a kind of specific embodiment as floor moving device provided by the invention, the bottom of supporting leg 2 Equipped with universal wheel 13, by pushing the position on bracket 13 adjustable floor 14 and notch, and then guarantee that floor 14 is reinstalled When can be embedded in notch.Universal wheel 13 has self-locking device, when promoting floor 14, locks universal wheel 13, prevents bracket from shaking.
Referring to Fig. 1, a kind of specific embodiment as floor moving device provided by the invention, lodging bench 7 it is upper Non-slip mat is arranged in surface, prevents floor 14 from sliding from lodging bench 7.
As a kind of specific embodiment of floor moving device provided by the invention, cylinder 3 can be fixed on top plate 1, Lodging bench 7 is horizontally moveable, i.e., track is equipped between adjacent two supporting legs 2, and two sides and the track of lodging bench 7 match, and stores Platform 7 can slide along track, and when moving floor 14, lodging bench 7 is first slid onto the following location directly for deviateing cylinder 3, then will Floor 14 lifts to the height for being higher than lodging bench 7, then lodging bench 7 is slid onto the underface on floor 14, then puts floor 14 On lodging bench 7.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (10)

1. floor moving device, it is characterised in that: including bracket, hoisting mechanism, grasping mechanism and lodging bench;
Bracket includes top plate and the supporting leg for being used to support the top plate;
Hoisting mechanism is set to the inside of the bracket, is respectively communicated with including several cylinders and with cylinder described in several Air pump;Several described cylinders are vertically arranged, and the bottom of the cylinder barrel of the cylinder is slidably connected with the top plate;
Grasping mechanism include several be respectively arranged at the piston rod end of several cylinders sucker and several with The vacuum pump that the sucker is separately connected;
Lodging bench is horizontally placed on the inside of the bracket, and the lodging bench is greater than the cylinder of the cylinder with the spacing of the top plate The length of cylinder.
2. floor moving device as described in claim 1, it is characterised in that: the lower surface level of the top plate is equipped with sliding rail, The bottom of the cylinder barrel of the cylinder is equipped with the sliding block to match with the sliding rail.
3. floor moving device as claimed in claim 2, it is characterised in that: one end of the sliding rail is equipped with motor, the cunning The inside of rail is equipped with for connecting the output shaft of the motor and the leash of the sliding block.
4. floor moving device as claimed in claim 3, it is characterised in that: the both ends of the sliding rail are respectively equipped with driving pulley And driven pulley, the leash bypass end to end, the main belt after the driving pulley and the driven pulley respectively The output axis connection of wheel and the motor.
5. floor moving device as claimed in claim 4, it is characterised in that: the output shaft of the motor and the driving pulley Between be equipped with retarder, the output axis connection of the input terminal of the retarder and the motor, the output end of the retarder and The driving pulley connection.
6. floor moving device as claimed in claim 3, it is characterised in that: the top plate is equipped with controller, the control Device is electrically connected with the motor, the air pump and the vacuum pump respectively.
7. floor moving device as claimed in claim 6, it is characterised in that: set above the lodging bench on the supporting leg There is first stroke switch, the first stroke switch is electrically connected with the controller.
8. floor moving device as claimed in claim 6, it is characterised in that: the both ends of the sliding rail are respectively equipped with second stroke Switch and third trip switch, the second stroke switch and third trip switch are electrically connected with the controller respectively.
9. floor moving device as described in claim 1, it is characterised in that: the bottom of the supporting leg is equipped with universal wheel, described Universal wheel is equipped with self-locking device.
10. such as the described in any item floor moving devices of claim 1-9, it is characterised in that: the upper surface of the lodging bench is set There is non-slip mat.
CN201910698296.1A 2019-07-31 2019-07-31 Floor moving device Pending CN110371660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910698296.1A CN110371660A (en) 2019-07-31 2019-07-31 Floor moving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910698296.1A CN110371660A (en) 2019-07-31 2019-07-31 Floor moving device

Publications (1)

Publication Number Publication Date
CN110371660A true CN110371660A (en) 2019-10-25

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ID=68257153

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910698296.1A Pending CN110371660A (en) 2019-07-31 2019-07-31 Floor moving device

Country Status (1)

Country Link
CN (1) CN110371660A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110844838A (en) * 2019-11-27 2020-02-28 徐州维尔力德重工科技有限公司 Crane for maintaining large-scale wind power equipment
CN115676378A (en) * 2022-11-16 2023-02-03 江苏万恒铸业有限公司 Sheet steel casting machining lifting device with protection structure and lifting method

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Publication number Priority date Publication date Assignee Title
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CN104986564A (en) * 2015-06-11 2015-10-21 中国矿业大学 Automatic feeding mechanism for wood floor production line
CN205708823U (en) * 2016-02-18 2016-11-23 江苏豪林自动化科技有限公司 A kind of feeding device on floor production line
CN108382810A (en) * 2017-02-02 2018-08-10 陈颜开 A kind of dedicated floor tile transport device of construction and decoration
US20180333841A1 (en) * 2015-09-09 2018-11-22 Bastian Solutions, Llc Automated guided vehicle (agv) with batch picking robotic arm
CN109704066A (en) * 2019-02-19 2019-05-03 中国矿业大学 A kind of composite floor board production line haftplatte separation feeding device
CN109867207A (en) * 2019-03-12 2019-06-11 常小琼 A kind of safety and sucking and lifting device and its application method convenient for operation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090000693U (en) * 2007-07-19 2009-01-22 에버프레시전 테크 컴퍼니 리미티드 Vacuum suction plate having parallel caterpillar band
CN104986564A (en) * 2015-06-11 2015-10-21 中国矿业大学 Automatic feeding mechanism for wood floor production line
US20180333841A1 (en) * 2015-09-09 2018-11-22 Bastian Solutions, Llc Automated guided vehicle (agv) with batch picking robotic arm
CN205708823U (en) * 2016-02-18 2016-11-23 江苏豪林自动化科技有限公司 A kind of feeding device on floor production line
CN108382810A (en) * 2017-02-02 2018-08-10 陈颜开 A kind of dedicated floor tile transport device of construction and decoration
CN109704066A (en) * 2019-02-19 2019-05-03 中国矿业大学 A kind of composite floor board production line haftplatte separation feeding device
CN109867207A (en) * 2019-03-12 2019-06-11 常小琼 A kind of safety and sucking and lifting device and its application method convenient for operation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110844838A (en) * 2019-11-27 2020-02-28 徐州维尔力德重工科技有限公司 Crane for maintaining large-scale wind power equipment
CN115676378A (en) * 2022-11-16 2023-02-03 江苏万恒铸业有限公司 Sheet steel casting machining lifting device with protection structure and lifting method

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Application publication date: 20191025