CN108203059A - A kind of boom hoisting of power equipment maintaining - Google Patents
A kind of boom hoisting of power equipment maintaining Download PDFInfo
- Publication number
- CN108203059A CN108203059A CN201810264518.4A CN201810264518A CN108203059A CN 108203059 A CN108203059 A CN 108203059A CN 201810264518 A CN201810264518 A CN 201810264518A CN 108203059 A CN108203059 A CN 108203059A
- Authority
- CN
- China
- Prior art keywords
- column
- babinet
- arm
- sliding slot
- pulley
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-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
- B66C1/10—Load-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
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a kind of boom hoistings of power equipment maintaining, are related to power maintenance technology field.The present invention includes pedestal, column, babinet, arm, fixed pulley group, movable pulley, lifting rope and drawstring；Uprights vertical is mounted on pedestal；Babinet is mounted on one end of column, and the inner bottom surface of babinet is equipped with sliding slot, and one end of arm is slidably mounted in sliding slot, and the other end is equipped with fixed pulley group；A surface of the arm far from sliding slot is equipped with rack in an axial direction, and a gear, wheel and rack engagement are rotatablely installed in babinet, and gear makes arm be slided along sliding slot.The present invention makes power equipment handling more laborsaving by the cooperation of fixed pulley group and movable pulley, and the length that arm can be reconciled by the rotation of gear is applicable in different operating modes.The present invention makes the handling of power equipment become simple, and a people can be easily accomplished handling, and the labor intensity for greatly reducing worker improves work efficiency.
Description
Technical field
The invention belongs to power maintenance technology field, more particularly to a kind of boom hoisting of power equipment maintaining.
Background technology
In power line maintenance and transformation, needing replacing and increase some complete set of equipments, the weight of these equipment is larger,
It needs just give rise to certain height by lifting device.And power equipment and substation are limited by geographical space, no
It is suitble at the scene using lifting vehicle.Therefore mostly by manually lifting by crane these equipment, cause working efficiency low so that power circuit is tieed up
It repaiies that the time is long, influences the power supply of power circuit, and using artificial lifting, safety is poor.
Invention content
The purpose of the present invention is to provide a kind of boom hoisting of power equipment maintaining, by setting fixed pulley group and dynamic cunning
Wheel, solves the problems, such as that the artificial slinging work efficiency of existing power equipment is low.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions：
The present invention is a kind of boom hoisting of power equipment maintaining, including pedestal, column, babinet, arm, movable pulley, lifting rope
And drawstring；
The uprights vertical is mounted on the pedestal, and the first cord holder and the second cord holder are equipped on the column；
The babinet is mounted on one end of the column, and one opposing sidewalls of babinet are respectively equipped with the first opening and second
Opening, first opening and the second opening are close to the bottom of the babinet, and the center of first opening, the second opening
Line overlaps, and the inner bottom surface of the babinet is equipped with sliding slot, the sliding slot and the described first opening, the second open communication；Described second
Opening is equipped with the first fixed pulley；
One end of the arm passes through the described first opening to be slidably mounted in the sliding slot, the other end peace of the arm
Equipped with fixed pulley group, the fixed pulley group includes first pulley and second pulley, and the first pulley is located at the second pulley
Lower end；A surface of the arm far from the sliding slot is equipped with rack in an axial direction, and a gear, institute are rotatablely installed in the babinet
It states gear to engage with the rack, the gear makes the arm slide along the sliding slot；
First hook and the second hook are installed, one end of the lifting rope is fixed with the described first hook on the movable pulley
Connection, the other end of the lifting rope connect successively around the first pulley, movable pulley, second pulley and first cord holder
It connects；
One end of the drawstring is connect with second cord holder, and the other end of the drawstring bypasses first fixed pulley
It is fixedly attached to one end that the arm is located in the babinet.
Further, connecting shaft, clutch shaft bearing, second bearing and support arm are further included；
One end of the connecting shaft is fixedly connected with the bottom of the babinet；The outer ring of the clutch shaft bearing and the column
One end is fixedly connected, and the inner ring of the clutch shaft bearing is fixedly connected with the one end of the connecting shaft far from the babinet；Described first
The column of bearing lower part is equipped with clamping screw, and the clamping screw is contacted across the column with the connecting shaft；
The inner ring of the second bearing is fixedly mounted on institute's column, the outer ring of the second bearing and the support arm
One end is fixedly connected, and the other end of the support arm is fixedly connected with the bottom of institute's babinet；
The second bearing is located at below the clutch shaft bearing.
Further, the column is composed of multiple first columns, and the clutch shaft bearing is mounted on the column top
On first column at end, institute's second bearing is mounted on the first column of the column bottom.
Further, the sliding slot is equipped with bumping post close to second opening.
Further, the section of the sliding slot is " C " shape, and the part that the arm is located in the sliding slot is "T"-shaped.
Further, first cord holder and the second cord holder are hand winch.
The invention has the advantages that：
1. the present invention makes power equipment handling more laborsaving by the cooperation of fixed pulley group and movable pulley, pass through turning for gear
The length that kinetic energy enough reconciles arm is applicable in different operating modes.The present invention makes the handling of power equipment become simple, and a people can
To be easily accomplished handling, the labor intensity for greatly reducing worker improves work efficiency.
2. the configuration of the present invention is simple is simple in structure, small, light-weight, it is convenient for carrying and transports.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, embodiment will be described below required
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the structure diagram of the boom hoisting of power equipment maintaining of the present invention；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is the enlarged drawing at A in Fig. 2；
In attached drawing, parts list represented by the reference numerals are as follows：
1- pedestals, 2- columns, 3- babinets, 4- arms, 5- movable pulleys, 6- lifting ropes, 7- drawstrings, the first cord holders of 8-, 9-
Two cord holders, 10- sliding slots, the first fixed pulleys of 11-, 12- fixed pulley groups, 13- first pulleys, 14- second pulleys, 15- racks,
16- gears, 511- first are linked up with, and 512- second is linked up with, 17- connecting shafts, 18- clutch shaft bearings, 19- second bearings, 20- support arms,
21- clamping screws, 22- bumping posts.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that term " one end ", " on ", " bottom ", the indicating positions such as " surface "
Or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or imply signified component or element
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
It please refers to Fig.1 shown in -3, the present invention is a kind of boom hoisting of power equipment maintaining, including pedestal 1, column 2, babinet
3rd, arm 4, movable pulley 5, lifting rope 6 and drawstring 7；
Column 2 is vertically mounted on pedestal 1, and the first cord holder 8 and the second cord holder 9 are equipped on column 2；
Babinet 3 is mounted on one end of column 2, and 3 one opposing sidewalls of babinet are respectively equipped with the first opening and second and are open, and first
Opening and the second opening are close to the bottom of babinet 3, and the first opening, the center line of the second opening overlap, the inner bottom surface of babinet 3
Equipped with sliding slot 10, sliding slot 10 and first is open, the second open communication；Second opening is equipped with the first fixed pulley 11；
One end of arm 4 passes through the first opening to be slidably mounted in sliding slot 10, and the other end of arm 4 is equipped with fixed pulley group
12, fixed pulley group 12 includes first pulley 13 and second pulley 14, and first pulley 13 is located at the lower end of second pulley 14；Arm 4
A surface far from sliding slot 10 is equipped with rack 15 in an axial direction, is rotatablely installed a gear 16 in babinet 3, gear 16 is nibbled with rack 15
It closes, gear 16 makes arm 4 be slided along sliding slot 10；
First hook 511 and the second hook 512 are installed, one end of lifting rope 6 is fixed with the first hook 511 on movable pulley 5
Connection, the other end of lifting rope 6 are connect successively around first pulley 13, movable pulley 5, second pulley 14 with the first cord holder 8；
One end of drawstring 7 is connect with the second cord holder 9, and the other end of drawstring 7 is fixedly attached to around the first fixed pulley 11
Arm 4 is located at one end in babinet 3.
The course of work describes：Power equipment is hung on the second hook 512 of movable pulley 5, is pulled by the first cord holder 8
Lifting rope 6, lifting rope 6 pull movable pulley 5 to be moved to fixed pulley group 12, are hung because one end of lifting rope 6 is fixedly connected on the first of movable pulley 5
On hook 511, the other end of lifting rope 6 is connect successively around first pulley 13, movable pulley 5, second pulley 14 with the first cord holder 8,
Therefore it is the 1/3 of power equipment weight according to the power that movable pulley labour-saving principle drawstring 6 is actually subject to, in this way, a people is with regard to energy
Very easily by power equipment handling to the position needed.When needing to adjust the length of the stretching babinet 3 of arm 4, pass through rotation
Gear 16, gear 16 is engaged with rack 15, and when rotating clockwise gear 16, the length increase of the stretching of arm 4 turns when counterclockwise
During moving gear 16, the length that arm 4 stretches out reduces, and the second cord holder 9 tenses drawstring 7 when arm 4 is adjusted to suitable position,
It can play the role of fixed arm 4.
Wherein, connecting shaft 17, clutch shaft bearing 18, second bearing 19 and support arm 20 are further included；
One end of connecting shaft 17 is fixedly connected with the bottom of babinet 3；The outer ring of clutch shaft bearing 18 is fixed with one end of column 2 to be connected
It connects, the inner ring of clutch shaft bearing 18 is fixedly connected with the one end of connecting shaft 17 far from babinet 3；It is set on the column 2 of 18 lower part of clutch shaft bearing
There is clamping screw 21, clamping screw 21 is contacted across column 2 with connecting shaft 17；
The inner ring of second bearing 19 is fixedly mounted on institute's column 2, the outer ring of second bearing 19 and one end of support arm 20
It is fixedly connected, the other end of support arm 20 is fixedly connected with the bottom of institute babinet 3；Second bearing 19 is located under clutch shaft bearing 18
Face.It in this way, can be according to different operating mode swinging booms 4.
Wherein, column 2 is composed of multiple first columns 2, and clutch shaft bearing 18 is mounted on first column on 2 top of column
On 2, institute's second bearing 19 is mounted on the first column 2 of 2 bottom of column.In this way, the height of column 2 can be adjusted as needed
Degree.
Wherein, sliding slot 10 is equipped with bumping post 22 close to the second opening.In this way, it can prevent arm 4 from being skidded off from sliding slot 10.
Wherein, the section of sliding slot 10 is " C " shape, and the part that arm 4 is located in sliding slot 10 is "T"-shaped.In this way, it can make to hang
Arm 4 is tightly combined with sliding slot 10, prevents arm 4 from being skidded off from sliding slot 10 in handling power equipment.
Wherein, the first cord holder 8 and the second cord holder 9 are hand winch.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
At least one implementation of the present invention is contained in reference to the embodiment or example particular features, structures, materials, or characteristics described
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can close in any one or more embodiments or example
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably explain the present invention
Principle and practical application, so as to which skilled artisan be enable to be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its four corner and equivalent.
Claims (6)
1. a kind of boom hoisting of power equipment maintaining, which is characterized in that including pedestal (1), column (2), babinet (3), arm
(4), movable pulley (5), lifting rope (6) and drawstring (7)；
The column (2) is vertically mounted on the pedestal (1), and the first cord holder (8) and second are equipped on the column (2)
Cord holder (9)；
The babinet (3) is respectively equipped with the first opening mounted on one end of the column (2), (3) one opposing sidewalls of babinet
With the second opening, first opening is close to the bottom of the babinet (3), and first opening, second with the second opening
The center line of opening overlaps, and the inner bottom surface of the babinet (3) is equipped with sliding slot (10), the sliding slot (10) and the described first opening,
Second open communication；Second opening is equipped with the first fixed pulley (11)；
One end of the arm (4) passes through the described first opening to be slidably mounted in the sliding slot (10), the arm (4) it is another
One end is equipped with fixed pulley group (12), and the fixed pulley group (12) includes first pulley (13) and second pulley (14), and described
One pulley (13) is positioned at the lower end of the second pulley (14)；A surface of the arm (4) far from the sliding slot (10) is along axis
To equipped with rack (15), the babinet (3) is interior to be rotatablely installed a gear (16), and the gear (16) is nibbled with the rack (15)
It closes, the gear (16) makes the arm (4) be slided along the sliding slot (10)；
Be equipped on the movable pulley (5) the first hook (511) and second hook (512), one end of the lifting rope (6) with it is described
First hook (511) is fixedly connected, the other end of the lifting rope (6) successively around the first pulley (13), movable pulley (5),
Second pulley (14) is connect with first cord holder (8)；
One end of the drawstring (7) is connect with second cord holder (9), and the other end of the drawstring (7) bypasses described first
Fixed pulley (11) is fixedly attached to the one end of the arm (4) in the babinet (3).
2. a kind of boom hoisting of power equipment maintaining according to claim 1, which is characterized in that further include connecting shaft (17),
Clutch shaft bearing (18), second bearing (19) and support arm (20)；
One end of the connecting shaft (17) is fixedly connected with the bottom of the babinet (3)；The outer ring of the clutch shaft bearing (18) and institute
The one end for stating column (2) is fixedly connected, inner ring and the separate babinet (3) of the connecting shaft (17) of the clutch shaft bearing (18)
One end is fixedly connected；The column (2) of clutch shaft bearing (18) lower part is equipped with clamping screw (21), the clamping screw (21)
It is contacted across the column (2) with the connecting shaft (17)；
The inner ring of the second bearing (19) is fixedly mounted on institute's column (2), the outer ring of the second bearing (19) with it is described
One end of support arm (20) is fixedly connected, and the other end of the support arm (20) is fixedly connected with the bottom of institute's babinet (3)；
The second bearing (19) is below the clutch shaft bearing (18).
3. the boom hoisting of a kind of power equipment maintaining according to claim 2, which is characterized in that the column (2) is by more
A first column (2) is composed, and the clutch shaft bearing (18) is on first column (2) on the column (2) top, institute
Second bearing (19) is on first column (2) of the column (2) bottom.
4. the boom hoisting of a kind of power equipment maintaining according to claim 1, which is characterized in that the sliding slot (10) is close
Second opening is equipped with bumping post (22).
5. the boom hoisting of a kind of power equipment maintaining according to claim 1, which is characterized in that the sliding slot (10) is cut
Face is " C " shape, and part of the arm (4) in the sliding slot (10) is "T"-shaped.
A kind of 6. boom hoisting of power equipment maintaining according to claim 1, which is characterized in that first cord holder
(8) and the second cord holder (9) is hand winch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264518.4A CN108203059A (en) | 2018-03-28 | 2018-03-28 | A kind of boom hoisting of power equipment maintaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264518.4A CN108203059A (en) | 2018-03-28 | 2018-03-28 | A kind of boom hoisting of power equipment maintaining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108203059A true CN108203059A (en) | 2018-06-26 |
Family
ID=62606909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810264518.4A Pending CN108203059A (en) | 2018-03-28 | 2018-03-28 | A kind of boom hoisting of power equipment maintaining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108203059A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862058A (en) * | 2018-09-19 | 2018-11-23 | 袁福珍 | One kind builds a bridge working lifting auxiliary device |
| CN110902564A (en) * | 2019-10-29 | 2020-03-24 | 舟山长宏国际船舶修造有限公司 | A simple and easy hoisting support frame for portal crane safety hoist and mount |
| CN112456346A (en) * | 2020-12-11 | 2021-03-09 | 南京高速齿轮制造有限公司 | Lifting structure with adjustable length |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560074A (en) * | 1982-12-23 | 1985-12-24 | Manning Charles E | Scaffold mounted hoist |
| CN2473175Y (en) * | 2001-03-30 | 2002-01-23 | 王建民 | Garbage hoist for living in building |
| CN202423956U (en) * | 2011-12-22 | 2012-09-05 | 河南省电力公司焦作供电公司 | Hoisting device for power transmission line maintenance |
| CN203976288U (en) * | 2014-07-08 | 2014-12-03 | 国家电网公司 | A kind of turnover plate type suspended device |
| CN204778471U (en) * | 2015-07-08 | 2015-11-18 | 国网冀北电力有限公司张家口供电公司 | Single armed formula on -load tap -changer core hoisting accessory |
-
2018
- 2018-03-28 CN CN201810264518.4A patent/CN108203059A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560074A (en) * | 1982-12-23 | 1985-12-24 | Manning Charles E | Scaffold mounted hoist |
| CN2473175Y (en) * | 2001-03-30 | 2002-01-23 | 王建民 | Garbage hoist for living in building |
| CN202423956U (en) * | 2011-12-22 | 2012-09-05 | 河南省电力公司焦作供电公司 | Hoisting device for power transmission line maintenance |
| CN203976288U (en) * | 2014-07-08 | 2014-12-03 | 国家电网公司 | A kind of turnover plate type suspended device |
| CN204778471U (en) * | 2015-07-08 | 2015-11-18 | 国网冀北电力有限公司张家口供电公司 | Single armed formula on -load tap -changer core hoisting accessory |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862058A (en) * | 2018-09-19 | 2018-11-23 | 袁福珍 | One kind builds a bridge working lifting auxiliary device |
| CN110902564A (en) * | 2019-10-29 | 2020-03-24 | 舟山长宏国际船舶修造有限公司 | A simple and easy hoisting support frame for portal crane safety hoist and mount |
| CN110902564B (en) * | 2019-10-29 | 2021-04-23 | 舟山长宏国际船舶修造有限公司 | A simple and easy hoisting support frame for portal crane safety hoist and mount |
| CN112456346A (en) * | 2020-12-11 | 2021-03-09 | 南京高速齿轮制造有限公司 | Lifting structure with adjustable length |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101230835B (en) | Method and device for mounting of wind turbine blades | |
| CN108203059A (en) | A kind of boom hoisting of power equipment maintaining | |
| CN105731277B (en) | A kind of portable transformer hanging apparatus | |
| CN106348185B (en) | Adjustable climate control outdoor unit boom hoisting | |
| EP2908000A2 (en) | Method and lifting device for installing and removing components of a wind turbine | |
| CN204778471U (en) | Single armed formula on -load tap -changer core hoisting accessory | |
| CN106276666A (en) | The equipment hoisting device of rotatable lifting angle on a kind of electric pole | |
| EP1000897B1 (en) | Method for using a revolver crane, and a revolver crane | |
| CN207792583U (en) | Busbar handling device | |
| CN212334434U (en) | Movable dome glass hoisting machine | |
| CN109160366A (en) | A kind of electric transmission line erection take-up and pay-off device | |
| CN208008358U (en) | A kind of diesel engine of locomotive suspender hoisting bracket | |
| CN203359890U (en) | Small-sized electric pole hoisting device | |
| CN216923849U (en) | Safety monitoring equipment for power station equipment | |
| CN217516506U (en) | Auxiliary device for dense gas ground gathering and transporting maintenance | |
| CN108811736A (en) | A kind of fruit picking device support fixture | |
| CN208500178U (en) | A kind of building hanging basket for house construction engineering | |
| CN210505328U (en) | Full-automatic alarm function both arms safety tower crane | |
| CN216638701U (en) | Anti effectual electric power tower of rocking suspends auxiliary device in midair | |
| CN211895725U (en) | Small component hoisting and carrying device in building field | |
| CN206521226U (en) | Electric up-down rescues A-frame | |
| CN212050263U (en) | Rotatable hoist device for building engineering construction that facilitates use | |
| CN207608241U (en) | Counterweight packaged type crane | |
| CN208516842U (en) | A kind of electric mincing grinding machine | |
| CN220684486U (en) | Intelligent folding arm crane for carrying omnibearing light articles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180626 |
|
| RJ01 | Rejection of invention patent application after publication |