CN107934795B - Multifunctional hand-pulling/pushing cart for engineering - Google Patents
Multifunctional hand-pulling/pushing cart for engineering Download PDFInfo
- Publication number
- CN107934795B CN107934795B CN201711424129.5A CN201711424129A CN107934795B CN 107934795 B CN107934795 B CN 107934795B CN 201711424129 A CN201711424129 A CN 201711424129A CN 107934795 B CN107934795 B CN 107934795B
- Authority
- CN
- China
- Prior art keywords
- hack lever
- steel
- height
- adjustable
- adjustable height
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 72
- 239000010959 steel Substances 0.000 claims description 72
- 230000005611 electricity Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/24—Unloading land vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
- B66C11/18—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear comprising endless ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
- B66C5/06—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods with runways or tracks supported for lateral swinging movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
- B66C7/08—Constructional features of runway rails or rail mountings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Handcart (AREA)
Abstract
The invention discloses a multifunctional engineering hand power/trolley with lifting capacity, which comprises a carrying trolley body, a storage bin, a height-adjustable hack lever, a square rail way, a walking trolley, a hand hoist and the like.
Description
Technical Field
The invention belongs to the field of engineering transportation, and particularly relates to a multifunctional engineering hand power/trolley.
Background
In many professional projects with relatively small contract amount, such as water treatment, desulfurization, denitration, dust removal, circulating water and the like, the weight of equipment in the projects is between 100kg and 500kg, and the equipment needs to be frequently unloaded from a truck and is dumped into a construction site. When the equipment and the components are more than 100kg, the manpower is often required to be increased to be lifted by more than 200kg, the use of a crane, a forklift or other suitable engineering vehicles is unavoidable, and the cost of the current domestic engineering vehicles is considerable as calculated according to the starting of half a table or the short-time use times. The present invention relates to a method for controlling the transportation cost of a machine, and more particularly to a method for controlling the transportation cost of a machine, which is used for controlling the transportation cost of a machine, and is characterized in that the machine is used for controlling the transportation cost of the machine, and the machine is used for controlling the transportation cost of the machine.
At present, most of trolleys with the length of 1.5 meters to 2 meters are used for transporting light components or tools, and have no hoisting function. The small cantilever trolley with hoisting capacity in the market part has the advantages of large occupied area, inconvenient power connection and no unloading and transporting functions by means of electric power. And the other part of beam cranes have larger occupied area and no transportation capacity by means of electric power.
When goods in the site are dumped, the crane is required to finish lifting a batch of goods, the goods are lifted at the site in an idle movement mode, and the dumping efficiency is low.
There is a great need for a multi-functional cart/trolley with lifting and unloading functions, which uses little manpower, does not use electricity, and is also capable of being used for hauling heavy objects.
Disclosure of Invention
The technical problem solved by the invention is to provide the multifunctional hand-pulling/pushing cart with the functions of lifting, unloading and loading, which has less manpower, does not use electric power, and can also be used for hauling heavy objects.
The technical solution for realizing the purpose of the invention is as follows: the utility model provides a multi-functional hand power/shallow for engineering, the body including hand power/shallow, first adjustable height hack lever, second adjustable height hack lever, third adjustable height hack lever, square girder steel, square steel rail, travelling car, first hand-operated block, second hand-operated block, first wire rope, second wire rope, the ventral aspect of body is supported by five special-shaped steel sheet, set up a monoblock plank on five special-shaped steel sheet and form the panel, be provided with rotatable movable first landing leg and second landing leg in one side of body, second adjustable height hack lever, first landing leg and second landing leg can rotate around the same horizontal pole on the body, when needs hoist goods, first landing leg and second landing leg rotate to vertical state, first adjustable height hack lever and third adjustable height hack lever stand in or on ground, square steel beam frame establishes at first adjustable height hack lever and third adjustable height and sets up between the second hand-operated block and second side rail, and second hand-operated block is located between adjustable height hack lever and the second hand-operated block and second side rail, and second hand-operated block is located between the second side rail, and the second hand-operated block is located the second adjustable height side rail and is hung between the second side rail, and the second hand-operated block is located between the second adjustable height side rail and the second trolley body.
Preferably, the first height-adjustable hack lever, the second height-adjustable hack lever and the third height-adjustable hack lever are all of a multi-section structure, and two adjacent sections can be connected and fixed through a movable bolt.
Preferably, the square rail is of a telescopic structure.
Preferably, two sides of the body of the hand pulling/pushing cart are respectively provided with a steel pipe, and two ends of the five special-shaped steel plates are welded between the two steel pipes.
Preferably, the steel pipe is DN65 steel pipe, and the thickness of the five special-shaped steel plates is 10mm.
Preferably, the profiled steel sheet is provided with a receiving groove made of a thin steel sheet.
Preferably, each of the profiled steel sheets has a plurality of different slot-like designs thereon to form receiving slots.
The invention has the following beneficial effects: 1) The rack bars can be independently adjusted in height, can be erected on the ground and can also be erected on a truck, so that the truck has the functions of unloading from the truck and loading from the ground, the use of engineering trucks such as a crane fork truck is greatly reduced, and the machine tool cost is saved;
2) The equipment of the invention saves extremely manpower, does not exceed 2 persons, and can realize work even 1 person when small goods are loaded and unloaded;
3) The equipment of the invention does not need electricity, is used purely manually, and avoids the trouble of electricity connection;
4) The trolley is provided with the pull ring on the handle, and can be connected with a tractor head to pull a heavy object when the rod pieces are stored at the bottom of the panel.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
Fig. 1 is a schematic diagram of a hand-pulled/pushed truck for hoisting cargo for a multifunctional engineering according to the present invention.
Fig. 2 is a top view of the body compartment of the hand-pulled/pushed cart of the present invention fully stowed.
Fig. 3 is a schematic structural view of five profiled steel sheets according to the invention.
Fig. 4 is a view from A-A in fig. 1.
Fig. 5 is a view in the direction B-B of fig. 1.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Referring to fig. 1 to 5, a multifunctional engineering hand power/trolley comprises a hand power/trolley body 12, a first height-adjustable hack lever 2, a second height-adjustable hack lever 11, a third height-adjustable hack lever 15, a square steel beam 16, a square steel rail 3, a walking trolley 6, a first manual hoist 7, a second manual hoist 10, a first steel wire rope 13 and a second steel wire rope 14, wherein the ventral surface of the body 12 is supported by five special-shaped steel plates 20 to 24, a whole wood plate 25 is erected on the five special-shaped steel plates to form a panel, a first supporting leg 17 and a second supporting leg 18 are arranged on one side of the body 12, a first supporting leg 17 and a second supporting leg 18 which can move rotationally are arranged on one side of the body 12, the second height-adjustable hack lever 11, the first supporting leg 17 and the second supporting leg 18 can rotate around the same cross bar on the body 12, the cross bar is a steel tube, the support tube for the tail frame of the body 12 is arranged, in a hoisting working state, the flexible deformation of frame steel pipes is reduced by the two supporting legs 17 and 18, the support capacity of the frame to the frame rod 11 is greatly improved, when goods need to be hoisted, the first supporting leg 17 and the second supporting leg 18 rotate to a vertical state, the second adjustable height frame rod 11 rotates to a vertical state above the first supporting leg 17 and the second supporting leg 18, the first adjustable height frame rod 2 and the third adjustable height frame rod 15 stand on a truck or the ground, the square steel beam 16 is erected between the first adjustable height frame rod 2 and the third adjustable height frame rod 15, the square steel rail 3 is erected between the second adjustable height frame rod 11 and the square steel beam 16, the travelling trolley 6 is sleeved on the square steel rail 3, the first manual hoist 7 is hung on the travelling trolley 6, and the hooks of the goods below can be hooked, the second manual hoist 10 is hung at the tail end of the square steel rail 3 above the body 12, the hook of the second manual hoist 10 is hung on the travelling trolley 6, and the first steel wire rope 13 and the second steel wire rope 14 are connected between the upper end of the second height-adjustable hack lever 11 and the body 12.
Preferably, the first height-adjustable hack lever 2, the second height-adjustable hack lever 11 and the third height-adjustable hack lever 15 are all of a multi-section structure, and two adjacent sections can be fixedly connected through the movable bolt 5.
Preferably, the square rail 3 is of a telescopic structure.
Preferably, two sides of the body 12 of the hand-pulling/pushing cart are respectively provided with a steel pipe, and two ends of the five special-shaped steel plates are welded between the two steel pipes.
Preferably, the steel pipe is DN65 steel pipe, and the thickness of the five special-shaped steel plates is 10mm.
Preferably, the profiled steel sheet is provided with a receiving groove 19 made of a thin steel sheet.
Preferably, the receiving groove 19 is an open iron sheet box.
Preferably, each of the profiled steel sheets has a plurality of different slot-like designs thereon to form receiving slots.
When unloading goods from the truck or transferring goods from the ground, the supporting legs 17, 18 are rotated to stand on the ground, and the second height-adjustable hack lever 11 is adjusted to be vertical to the frame steel tube of the body 12; then the square steel beam 16 is sleeved on the thin round pipes (smaller than the diameter of the frame rods and welded on the top ends of the frame rods) at the top ends of the frame rods 2 and 15 and positioned through the bolts 4 (a through hole is arranged at the bottom of the thin round pipe and can be used for installing the bolts 4), the square steel rail is sleeved with the walking trolley 6, then one end of the square steel rail 3 is arranged on the frame rod 11, one end of the square steel rail is hung in the middle of the square steel beam 16, the hand hoist 7 and the hand hoist 10 are respectively hung at the tail ends of the walking trolley 6 and the square steel rail, the hook of the hand hoist 10 is hung on the walking trolley, one section of the frame rod 2 is adjusted upwards after the thin steel wire ropes 13 and 14 are primarily sleeved, 15 and 11 until a suitable height, tightening the thin steel wire rope, fastening, tying the goods on the hooks of the hoist 7, pulling the hoist 7, lifting the goods by the pull rope 8 binding the goods, then pulling the hoist 10, moving the travelling trolley to the upper side of the body 12 through the pull rope 9 of the hoist 10, adjusting the position, putting down the hoist 7, lifting the goods one by one in this way, putting on the body 12 of the hand/trolley, after the completion, lowering the hack levers 2, 15, 11 one by one, taking down the hoist 7, 10, taking down the lower steel rail 3, taking up the square steel beam 16 and the hack levers 2, 15, 11, placing on the trolley, and taking up the trolley after the goods are loaded and unloaded.
But as a common scooter, the utility model can be used for removing parts under the panel and reducing the weight of the scooter. When the heavy object is needed to be arranged, the parts are stored in the storage groove formed by combining the storage groove 19 below the panel and the special-shaped steel plate, the storage groove 19 can store the steel wire rope and various bolts, all the parts are restrained by the length of the parts and the baffle plates 26 and 27, and cannot slide down in the steel tube frame, if the steel tube frame is hauled by a tractor, and the pull ring arranged on the pull rod can be pushed by the pull rope connection body 12.
Compared with the common trolley, the invention has more functions of unloading and loading, does not need electric power and excessive manpower, avoids the use of partial engineering vehicles such as a crane fork truck, greatly reduces the consumption of engineering mechanical fees and labor fees, improves the efficiency of internal transportation in an engineering construction site, and promotes the overall progress of engineering.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a multifunctional engineering is with hand power/shallow, a serial communication port, including hand power/shallow's body (12), first adjustable height hack lever (2), second adjustable height hack lever (11), third adjustable height hack lever (15), square steel roof beam (16), square rail way (3), walking dolly (6), first manual hoist (7), second manual hoist (10), first wire rope (13), second wire rope (14), the web of body (12) is supported by five special-shaped steel sheet, set up a monoblock plank (25) on five special-shaped steel sheet and form the panel, be provided with rotatable movable first landing leg (17) and second landing leg (18) on one side of body (12), second adjustable height hack lever (11), first landing leg (17) and second landing leg (18) can rotate around the same horizontal pole on body (12), when the goods need hoist to the vertical state, second adjustable height (11) are located on first landing leg (17) and the adjustable height hack lever (15) or the vertical state of second landing leg (18), the square steel beam (16) is erected between the first hack lever (2) with adjustable height and the third hack lever (15), the square steel rail (3) is erected between the second hack lever (11) with adjustable height and the square steel beam (16), the walking trolley (6) is sleeved on the square steel rail (3), the first manual hoist (7) is hung on the walking trolley (6) and can hook goods below, the second manual hoist (10) is hung at the tail end of the square steel rail (3) above the body (12) and the hook of the second manual hoist (10) is hung on the walking trolley (6), the first steel wire rope (13) and the second steel wire rope (14) are connected between the upper end of the second hack lever (11) and the body (12), and the special-shaped steel plate is provided with a storage groove (19);
the first height-adjustable hack lever (2), the second height-adjustable hack lever (11) and the third height-adjustable hack lever (15) are all of multi-section structures, and two adjacent sections can be connected and fixed through a movable bolt (5);
the square steel rail (3) is of a telescopic structure.
2. The hand power/trolley according to claim 1, characterized in that the two sides of the body (12) of the hand power/trolley are each a steel tube, the two ends of the five profiled steel sheets being welded between the two steel tubes.
3. The hand power/cart of claim 2, wherein the steel pipe is DN65 steel pipe and the five profiled steel plates are each 10mm thick.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711424129.5A CN107934795B (en) | 2017-12-25 | 2017-12-25 | Multifunctional hand-pulling/pushing cart for engineering |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711424129.5A CN107934795B (en) | 2017-12-25 | 2017-12-25 | Multifunctional hand-pulling/pushing cart for engineering |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107934795A CN107934795A (en) | 2018-04-20 |
CN107934795B true CN107934795B (en) | 2024-02-20 |
Family
ID=61939082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711424129.5A Active CN107934795B (en) | 2017-12-25 | 2017-12-25 | Multifunctional hand-pulling/pushing cart for engineering |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107934795B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109607242A (en) * | 2019-02-01 | 2019-04-12 | 北京艾瑞思机器人技术有限公司 | Cargo gear and goods traffic equipment |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05155284A (en) * | 1991-11-21 | 1993-06-22 | Keikichi Katano | Loading and unloading device for load carrying vehicle |
JPH08113074A (en) * | 1994-10-17 | 1996-05-07 | Fukuichi Sangyo Kk | Working vehicle equipped with small simplified crane |
JP2000044161A (en) * | 1998-07-31 | 2000-02-15 | Fujita Corp | Hoisting jig with telpher |
CN201154873Y (en) * | 2007-11-14 | 2008-11-26 | 青铜峡铝业集团有限公司 | Mobile crane for automobile maintenance |
CN102372231A (en) * | 2011-07-21 | 2012-03-14 | 牡丹江水力发电总厂 | Tool for hoisting mechanical equipment |
CN103029733A (en) * | 2011-09-30 | 2013-04-10 | 沈兴财 | Handcart with tray |
CN203187332U (en) * | 2013-03-23 | 2013-09-11 | 岳彬 | Multifunctional lifting carrying cart |
CN103373670A (en) * | 2012-04-12 | 2013-10-30 | 赵文庆 | Point switch machine hand-operated automobile installation specialized crane |
CN104210961A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Small-size equipment of station tears fortune dolly open |
CN105645260A (en) * | 2016-04-15 | 2016-06-08 | 桑大勇 | Suspended walking combined gantry crane |
CN205365684U (en) * | 2015-12-21 | 2016-07-06 | 浙江中德节能门窗有限公司 | Casement travelling bogie |
CN205472405U (en) * | 2016-04-01 | 2016-08-17 | 西安建筑科技大学 | Laboratory is with removing single track universal little driving |
CN208103763U (en) * | 2017-12-25 | 2018-11-16 | 江苏美泓环保科技有限公司 | Multifunctional engineering is with pulling/cart |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030006586A1 (en) * | 2001-07-05 | 2003-01-09 | Comilla John P. | Heavy duty, knockdown industrial cart |
-
2017
- 2017-12-25 CN CN201711424129.5A patent/CN107934795B/en active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05155284A (en) * | 1991-11-21 | 1993-06-22 | Keikichi Katano | Loading and unloading device for load carrying vehicle |
JPH08113074A (en) * | 1994-10-17 | 1996-05-07 | Fukuichi Sangyo Kk | Working vehicle equipped with small simplified crane |
JP2000044161A (en) * | 1998-07-31 | 2000-02-15 | Fujita Corp | Hoisting jig with telpher |
CN201154873Y (en) * | 2007-11-14 | 2008-11-26 | 青铜峡铝业集团有限公司 | Mobile crane for automobile maintenance |
CN102372231A (en) * | 2011-07-21 | 2012-03-14 | 牡丹江水力发电总厂 | Tool for hoisting mechanical equipment |
CN103029733A (en) * | 2011-09-30 | 2013-04-10 | 沈兴财 | Handcart with tray |
CN103373670A (en) * | 2012-04-12 | 2013-10-30 | 赵文庆 | Point switch machine hand-operated automobile installation specialized crane |
CN203187332U (en) * | 2013-03-23 | 2013-09-11 | 岳彬 | Multifunctional lifting carrying cart |
CN104210961A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Small-size equipment of station tears fortune dolly open |
CN205365684U (en) * | 2015-12-21 | 2016-07-06 | 浙江中德节能门窗有限公司 | Casement travelling bogie |
CN205472405U (en) * | 2016-04-01 | 2016-08-17 | 西安建筑科技大学 | Laboratory is with removing single track universal little driving |
CN105645260A (en) * | 2016-04-15 | 2016-06-08 | 桑大勇 | Suspended walking combined gantry crane |
CN208103763U (en) * | 2017-12-25 | 2018-11-16 | 江苏美泓环保科技有限公司 | Multifunctional engineering is with pulling/cart |
Also Published As
Publication number | Publication date |
---|---|
CN107934795A (en) | 2018-04-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA3120355C (en) | Rack and hoist system | |
CN106829781A (en) | Mobile loading and transporting crane and operation method thereof | |
CN107934795B (en) | Multifunctional hand-pulling/pushing cart for engineering | |
CN109573418B (en) | Garbage collection and transportation device with crane | |
CN202483180U (en) | Movable building material loading and unloading platform | |
CN203318447U (en) | Steel grating plate mounting cart | |
CN2926741Y (en) | Pipeline repairing apparatus capable of vertically and turning operation | |
CN108466968A (en) | Firm multifunctional lifting platform | |
CN208103763U (en) | Multifunctional engineering is with pulling/cart | |
CN107021003A (en) | Electric pole rehandling draw-gear | |
CN213354583U (en) | Tunnel secondary lining trolley walking rail carrying trolley | |
CN213865142U (en) | Movable building construction material hoisting device | |
CN207046738U (en) | A kind of boom hoisting for loading and unloading and shifting suitable for equipment | |
CN211664616U (en) | Pipeline lifting and transporting device | |
CN203667915U (en) | Lifting device for transportation of logistics vehicles | |
CN201729625U (en) | Building indoor hoister | |
CN113460891A (en) | ALC wallboard handling composite set | |
CN206705566U (en) | A kind of carrier with bottle gouard moved by hands | |
CN218991603U (en) | Combined lifting operation vehicle | |
CN211167000U (en) | Loading, unloading and transporting device for assault boat | |
CN213569234U (en) | Hoisting and carrying integrated transportation tool | |
CN212861474U (en) | Manual portable transport vehicle | |
CN220334727U (en) | Simple and easy conveyer | |
CN215326428U (en) | Movable hoisting trolley capable of loading pipe materials | |
CN214935404U (en) | Device for hoisting skylight keel |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |