CN112978618A - Lifting system and method convenient for conveying bridge construction materials - Google Patents

Lifting system and method convenient for conveying bridge construction materials Download PDF

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Publication number
CN112978618A
CN112978618A CN202110161353.XA CN202110161353A CN112978618A CN 112978618 A CN112978618 A CN 112978618A CN 202110161353 A CN202110161353 A CN 202110161353A CN 112978618 A CN112978618 A CN 112978618A
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CN
China
Prior art keywords
frame
main frame
lifting
frame structure
turnover
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Withdrawn
Application number
CN202110161353.XA
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Chinese (zh)
Inventor
张勇
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to CN202110161353.XA priority Critical patent/CN112978618A/en
Publication of CN112978618A publication Critical patent/CN112978618A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07554—Counterweights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07559—Stabilizing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a lifting system and a method convenient for conveying bridge construction materials, the lifting system comprises a lifting frame, a lifting vehicle and a jack weight, the lifting frame is locked with the lifting vehicle, the lifting vehicle is provided with the jack weight, the lifting frame consists of a cross frame structure, a main frame structure and a mounting frame, the cross frame structure is connected with a main frame structure rail, the main frame structure is locked with the mounting frame, the cross frame structure comprises a cross frame, an inner cross rail, a turnover inclined plate and a turnover round shaft, the cross frame is connected with the inner cross rail, the cross frame is connected with the turnover inclined plate, the turnover inclined plate is connected with the turnover round shaft, the lifting frame is used for vertical line conveying, and through the gravity of the jack-weight balancing equipment, the equipment operation efficiency is high, the stability is good, the materials are dumped during the transferring process, the dumping speed is reduced by the rotating rod, the shock absorber plays a shock absorption role, and the safety of the equipment operation is effectively improved.

Description

Lifting system and method convenient for conveying bridge construction materials
The invention relates to a divisional application of lifting equipment, which is applied for 3, 10 and 2020, and has the application number of CN 202010161429.4.
Technical Field
The invention relates to the field of bridge construction, in particular to a lifting system and a lifting method convenient for conveying bridge construction materials.
Background
The on-site of bridge construction often needs to transport some materials to the eminence to carry out construction, generally adopt the loop wheel machine to be convenient for carry the material, remove the material to higher more distant through the davit, be used for the construction to use.
In the prior art, in order to ensure the stability during transferring, the running speed of the equipment is low, the deformation and movement speed of the suspension arm is also low, and the stability of the moving arm can be reduced and the potential safety hazard of equipment vibration or suspension arm swing can be caused if the material is placed unstably and topples over in the transferring process.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art, and provides a lifting system and a lifting method convenient for conveying bridge construction materials, so as to solve the problems that the equipment driving speed is low, the suspension arm deformation and movement speed is slow, and the stability of the moving arm is reduced and the potential safety hazard of equipment vibration or suspension arm swing is caused if the materials are placed unstably and toppled in the conveying process in order to ensure the stability in the conveying process.
The invention is realized by adopting the following technical scheme: the utility model provides a lifting system and method convenient to transport bridge construction material, its structure includes crane, unwheeling, the very heavy weight of crane right-hand member and unwheeling locking, the very heavy weight of crane right-hand member is installed, the crane comprises crossbearer structure, body frame structure, mounting bracket, crossbearer structure right-hand member and body frame structure rail connection, body frame structure right-hand member and mounting bracket locking.
Preferably, the cross frame structure comprises a transverse frame, an inner transverse rail, a turnover inclined plate and a turnover circular shaft, the transverse frame is connected with a rail at the front end of the inner transverse rail, the bottom of the transverse frame is connected with the turnover inclined plate in an installing manner, and the middle of the turnover inclined plate is connected with the turnover circular shaft.
Further preferably, the main frame structure comprises a fixed main frame and a movable auxiliary frame, and the fixed main frame is connected with the front end of the movable auxiliary frame in an installing mode.
Preferably, the turnover circular shaft comprises a ball backing ring, a tooth retaining ring and a connecting shaft, the ball backing ring is buckled with the annular surface of the tooth retaining ring, and the tooth retaining ring is installed and connected with the middle part of the connecting shaft.
Further preferably, a cushion ball is embedded on the inner ring side of the ball cushion ring, buckle teeth are welded on the inner ring side of the tooth buckle ring, and a connecting shaft plate is installed in the middle of the connecting shaft.
Further preferably, the traversing main frame comprises a main frame, a rotating rod and a shock absorber, the main frame is connected with the upper end shaft and the lower end shaft of the rotating rod, and the shock absorber is installed at the bottom of the main frame.
Further preferably, the shock absorber comprises a rotary gear ring, a cushion block and a cushion spring, wherein the inner ring side of the rotary gear ring is meshed with the cushion block, and the cushion block is welded with the upper end of the cushion spring.
Preferably, the rotating rod comprises a convex ring, a friction layer and a main rotating rod, the ring surface of the convex ring is connected with the friction layer through glue, and the convex ring is connected with the side shaft of the main rotating rod through a side shaft.
Advantageous effects
The invention discloses a lifting frame vehicle moving device which moves materials to a high place through a lifting frame, a jack weight changes the distance of the jack weight at the vehicle lifting position according to the lifting of the lifting frame, the gravity of the distribution device is balanced, the stability of the device during operation is improved, when the lifting frame operates, the materials are placed at a cross frame structure, the cross frame structure moves at a main frame structure and extends to a high designated position through a vertical route, a transverse main frame and an inner transverse rail stretch to change the length of the cross frame structure, the main frame and a movable auxiliary frame stretch to change the height of the main frame structure and also drive the height of the cross frame structure to move, a turnover inclined plate turns downwards from the bottom of the transverse main frame and extends to the left lower end of the main frame structure during the period, the support force is formed to improve the stability of the lifting frame operation, when the turnover inclined plate extends, the turnover inclined plate is driven by a turnover circular shaft, namely, the turnover inclined plate is formed by a plurality of, the roll over can separate during gliding between the circle axle, the bolster warp under the pressure effect during separation, the upset swash plate of being convenient for that the volume diminishes extends, the latch is left out of the knot, it is the angle of angle to link up the rotation of axial lamella, the concatenation after the upset swash plate of being convenient for extends, the material is placed in the sideslip body frame, the gravity of material slope drives the rotation of bull stick when appearing empting, the rotation of bull stick has formed the resistance to the material turns over down, and simultaneously, the rotation of bull stick has driven the transmission of bumper shock absorber, the elasticity of bolster spring has promoted the cushion after the material turns over, the cushion has shifted up and has played the effect to the material absorbing.
Compared with the prior art, the invention has the beneficial effects that: the crane is carried for perpendicular route to through the gravity of the heavy balance equipment of jack, equipment operating efficiency is high, and stability is good, and the in-process material of transferring emptys, and the bull stick has slowed down and has emptyd the speed, and the bumper shock absorber plays the cushioning effect, and the security of equipment operation obtains effectively improving.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic diagram illustrating a lifting system and method for facilitating the transportation of bridge construction materials according to the present invention.
Figure 2 shows a schematic structure of the extension of the lifting frame of the invention.
Fig. 3 shows the extension structure of the lifting frame of the invention, and is also a structure of the extension of the tilting plate.
Fig. 4 shows a schematic structural view of the folding round shaft of the invention.
Fig. 5 shows a schematic view of the present traversing mainframe.
Fig. 6 shows a schematic structural diagram of a of fig. 5 according to the present invention.
Fig. 7 shows a schematic structural diagram of B of fig. 5 according to the present invention.
In the figure: the lifting frame 1, the lifting car 2, the jack drop 3, the cross frame structure 10, the main frame structure 11, the mounting frame 12, the transverse moving main frame 100, the inner transverse rail 101, the turnover sloping plate 102, the turnover round shaft 103, the fixing main frame 110, the movable auxiliary frame 111, the ball gasket ring 1030, the tooth fastening ring 1031, the connecting shaft 1032, the cushion ball 400, the fastening tooth 401, the connecting shaft plate 402, the main frame 1000, the rotating rod 1001, the shock absorber 1002, the rotating tooth ring 500, the cushion block 501, the cushion spring 502, the convex ring 700, the friction layer 701 and the main rotating rod 702.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1 referring to fig. 1 to 4, the present invention provides a lifting system and a method for conveniently transporting bridge construction materials, wherein the lifting system comprises: the structure of the lifting frame comprises a lifting frame 1, a lifting vehicle 2 and a lifting pendant 3, wherein the lifting pendant 3 changes the distance of the lifting frame 2 according to the lifting of the lifting frame 1, the gravity of the equipment is distributed in a balanced manner, the stability of the equipment during operation is improved, the lifting frame 1 is locked with the lifting vehicle 2, the lifting frame 2 is provided with the lifting pendant 3, the lifting frame 1 consists of a cross frame structure 10, a main frame structure 11 and a mounting frame 12, the cross frame structure 10 moves and extends at the main frame structure 11 to convey the material to a high designated position in a vertical path, the conveying is more stable, the cross frame structure 10 is in rail connection with the main frame structure 11, the main frame structure 11 is locked with the mounting frame 12, the cross frame structure 10 comprises a cross frame 100, an inner cross rail 101, a turnover sloping plate 102 and a turnover round shaft 103, the cross frame 100 is in rail connection with the inner cross rail 101, the cross frame 100 is in installation connection with the turnover sloping plate 102, the utility model discloses a hydraulic lifting frame, including upset swash plate 102, sideslip main frame 100, fixed main frame 110, activity auxiliary frame 111, fixed main frame 110 and activity auxiliary frame 111 are connected, upset swash plate 102 is connected with a roll-over circular shaft 103 hub connection, upset swash plate 102 during from the sideslip main frame 100 bottom turn over down and extend to the left lower extreme of main frame structure 11, forms the stability that the power improves crane 1 operation, main frame structure 11 is including fixed main frame 110, activity auxiliary frame 111, it includes ball cushion ring 1030, tooth retaining ring 1031, links up axle 1032 to turn over circular shaft 103, ball cushion ring 1030 and tooth retaining ring 1031 lock joint, tooth retaining ring 1031 and linking axle 1032 erection joint, ball cushion ring 1030 inlays and is equipped with cushion ball 400, tooth 1031 welding has buckle 401, linking axle plate 402 is installed to linking axle 1032, cushion ball 400 warp under the pressure during the separation, buckle tooth 401 is left out, and axle plate 402 is rotatory to be 45 degrees, the concatenation after upset swash plate 102 extension of being convenient for the transmission is nimble.
The material is moved to a high place by the mobile equipment of the lifting frame 2 through the lifting frame 1, the distance of the jack weights 3 at the lifting frame 2 is changed according to the lifting of the lifting frame 1, the gravity of the equipment is distributed in a balanced manner, the stability of the equipment during operation is improved, when the lifting frame 1 operates, the material is placed at the cross frame structure 10, the cross frame structure 10 moves at the main frame structure 11 and extends to a high designated position, the material is conveyed to the high designated position through a vertical route, the length of the cross frame structure 10 is changed by stretching the cross frame main frame 100 and the inner cross rail 101, the height of the main frame structure 11 is changed by stretching the fixed main frame 110 and the movable auxiliary frame 111, the height of the cross frame structure 10 is also driven to move, during the process, the overturning inclined plate 102 overturns downwards from the bottom of the main frame 100 and extends to the left lower end of the main frame structure 11, the supporting force is formed, the stability of the operation, the tipping swash plate 102 is a plurality of branch structure components and accomodates in sideslip body frame 100 bottom promptly, and the rolling over can separate between the circle axle 103 during the gliding, and the cushion ball 400 warp under the pressure during separation, and the volume diminishes and is convenient for tipping swash plate 102 extends, and the latch 401 is left out of lock, and the rotation of linking axial lamella 402 is 45 degrees angles, the concatenation after the tipping swash plate 102 of being convenient for extends.
Embodiment 2 referring to fig. 5 to 7, the present invention provides a lifting system and a method for conveniently transporting bridge construction materials, wherein the lifting system comprises: the structure of the traversing main frame 100 comprises a main frame 1000, a rotating rod 1001 and a shock absorber 1002, wherein the rotation of the rotating rod 1001 forms resistance to downward turning of materials, the main frame 1000 is connected with the rotating rod 1001 through a shaft, the shock absorber 1002 is installed on the main frame 1000, the rotation of the rotating rod 1001 drives the rotation of the rotating gear ring 500 to realize the transmission of the shock absorber 1002, the shock absorber 1002 comprises a rotating gear ring 500, a cushion block 501 and a cushion spring 502, the rotating gear ring 500 is meshed with the cushion block 501, the cushion block 501 is welded with the cushion spring 502, the rotating rod 1001 comprises a convex ring 700, a friction layer 701 and a main rotating rod 702, the convex ring 700 is connected with the friction layer 701 through glue, the convex ring 700 is connected with the main rotating rod 702 through the shaft, the rotation of the convex ring 700 forms resistance, the falling speed of the materials is reduced, the friction layer 701 further increases the resistance to the downward turning materials, and a groove structure is formed between the convex ring 700 and the main rotating rod 702, the material can be hooked conveniently, and the larger impact force formed after the material is turned down can be effectively reduced.
The material is placed in the traverse main frame 100, the gravity of the material inclination drives the rotation of the rotating rod 1001 when the material topples over, the rotation of the rotating rod 1001 forms resistance to the material turning over, meanwhile, the rotation of the rotating rod 1001 drives the transmission of the shock absorber 1002, when the material turns over, the cushion block 501 is pushed by the elasticity of the cushion spring 502, and the cushion block 501 moves upwards to play a role in absorbing the material.
Compared with the prior art, the invention has the technical progress that: the crane 1 is carried for perpendicular route to through the gravity of the 3 balance devices of very heavy drop, equipment operating efficiency is high, and stability is good, and the in-process material of transferring emptys, and bull stick 1001 has slowed down and has emptyd the speed, and bumper shock absorber 1002 plays the cushioning effect, and the security of equipment operation obtains effectively improving.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (7)

1. The utility model provides a jacking equipment convenient to transport bridge construction material, its structure includes crane (1), unwheeling (2), heavy weight (3), crane (1) and unwheeling (2) locking, heavy weight (3), its characterized in that are installed to unwheeling (2):
the lifting frame (1) consists of a cross frame structure (10), a main frame structure (11) and a mounting frame (12), wherein the cross frame structure (10) is in rail connection with the main frame structure (11), and the main frame structure (11) is locked with the mounting frame (12);
the transverse frame structure (10) comprises a transverse frame (100), inner transverse rails (101), turnover sloping plates (102) and turnover round shafts (103), the transverse frame (100) is in rail connection with the inner transverse rails (101), the transverse frame (100) is in installation connection with the turnover sloping plates (102), and the turnover sloping plates (102) are connected with the turnover round shafts (103) through shafts.
2. The lifting apparatus for facilitating the transportation of bridge construction material as claimed in claim 1, wherein: the main frame structure (11) comprises a fixed main frame (110) and a movable auxiliary frame (111), and the fixed main frame (110) is connected with the movable auxiliary frame (111) in an installing mode.
3. The lifting apparatus for facilitating the transportation of bridge construction material as claimed in claim 1, wherein: the turnover round shaft (103) comprises a ball cushion ring (1030), a tooth retaining ring (1031) and a connecting shaft (1032), the ball cushion ring (1030) is buckled with the tooth retaining ring (1031), and the tooth retaining ring (1031) is installed and connected with the connecting shaft (1032).
4. A lifting device for facilitating the transport of bridge construction material according to claim 3, wherein: the ball backing ring (1030) is embedded with a backing ball (400), the tooth retaining ring (1031) is welded with retaining teeth (401), and the connecting shaft plate (402) is installed on the connecting shaft (1032).
5. The lifting apparatus for facilitating the transportation of bridge construction material as claimed in claim 1, wherein: the transverse moving main frame (100) comprises a main frame (1000), a rotating rod (1001) and a shock absorber (1002), wherein the main frame (1000) is connected with the rotating rod (1001) through a shaft, and the shock absorber (1002) is installed on the main frame (1000).
6. The lifting apparatus for facilitating the transportation of bridge construction material as claimed in claim 5, wherein: the shock absorber (1002) comprises a rotary toothed ring (500), a cushion block (501) and a cushion spring (502), the rotary toothed ring (500) is meshed with the cushion block (501), and the cushion block (501) is welded with the cushion spring (502).
7. The system and method of any one of claims 1 to 6, wherein:
the material is placed in the sideslip body frame (100), and the gravity that the material inclined when appearing toppling over drives the rotation of bull stick (1001), and the rotation of bull stick (1001) has formed the resistance to the material is turned over down, and simultaneously, the rotation of bull stick (1001) has driven the transmission of bumper shock absorber (1002), and cushion (501) have been promoted to the elasticity of filling up spring (502) after the material turns over, and cushion (501) have upwards moved up and have played the effect to the material shock attenuation.
CN202110161353.XA 2020-03-10 2020-03-10 Lifting system and method convenient for conveying bridge construction materials Withdrawn CN112978618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110161353.XA CN112978618A (en) 2020-03-10 2020-03-10 Lifting system and method convenient for conveying bridge construction materials

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Application Number Priority Date Filing Date Title
CN202110161353.XA CN112978618A (en) 2020-03-10 2020-03-10 Lifting system and method convenient for conveying bridge construction materials
CN202010161429.4A CN111348591B (en) 2020-03-10 2020-03-10 Lifting device convenient to transport bridge construction material

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CN202010161429.4A Active CN111348591B (en) 2020-03-10 2020-03-10 Lifting device convenient to transport bridge construction material

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FR2574773B1 (en) * 1984-12-17 1988-02-26 Inst Textile De France TROLLEY FOR RECEIVING AND TRANSPORTING A KNITTED PIECE FOR CIRCULAR MATERIALS
CN201857243U (en) * 2010-11-13 2011-06-08 山推工程机械股份有限公司 Counterweight luffing type forklift
JP5873909B1 (en) * 2014-08-28 2016-03-01 ニチユ三菱フォークリフト株式会社 Cargo handling vehicle
CN106219447A (en) * 2016-09-13 2016-12-14 福建闽工机械有限公司 A kind of balanced type rear wheel drive forklift truck of automatic adjustment center of gravity
US11383963B2 (en) * 2017-03-03 2022-07-12 Jlg Industries, Inc. Obstacle detection system for an aerial work platform
CN208345691U (en) * 2018-06-11 2019-01-08 云栖科技（广州）有限公司 A kind of logistics management freight lifting handling device
CN109124842B (en) * 2018-08-04 2020-11-24 苏州睿澎诚科技有限公司 All-round nursing system
CN109264623B (en) * 2018-11-12 2020-12-04 南通风云通信技术有限公司 Operation method of intelligent Internet communication optical cable maintenance lifting device
CN209429557U (en) * 2018-12-25 2019-09-24 中国核工业中原建设有限公司 Discharging platform is used in a kind of construction of green building

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CN111348591B (en) 2021-05-04

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Application publication date: 20210618

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