CN111186776B - Mobile hoisting equipment for building - Google Patents
Mobile hoisting equipment for building Download PDFInfo
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- CN111186776B CN111186776B CN202010183955.0A CN202010183955A CN111186776B CN 111186776 B CN111186776 B CN 111186776B CN 202010183955 A CN202010183955 A CN 202010183955A CN 111186776 B CN111186776 B CN 111186776B
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- rod
- fixedly connected
- clamping
- sliding
- sleeve
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- 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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/48—Manually-movable jib cranes for use in workshops
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- 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
Abstract
The utility model provides a removal lifting device for building, is including mounting panel, universal wheel, motor, reel, support column, bracing piece, first guide arm, slider, first elastic component and clamping assembly, and two universal wheels are all installed through the bolt to both sides around the mounting panel bottom, and motor and support column are installed through the bolt in mounting panel top right side, and the motor is located the support column left side. According to the invention, the motor rotates anticlockwise to drive the building material to move towards the direction of the support column, so that the building material is conveyed into a building, manual conveying can be replaced, and a construction worker stands in the building to operate, so that the construction worker can be prevented from falling down, and safety accidents can be avoided; the sliding block can be fixed through the anti-slip component, so that the sliding block cannot move when the building material moves under the action of external force, and the pull rope cannot be clamped by the clamping plate in advance.
Description
Technical Field
The invention relates to a mobile hoisting device, in particular to a mobile hoisting device for buildings.
Background
Buildings include houses and structures, the houses are engineering buildings for people to live, study, work, production, entertainment and other social activities, the structures are engineering buildings except the houses, such as streets, enclosing walls, water towers and the like, in the building construction, various building materials are needed, the materials are conveyed to a support platform which is temporarily built by an elevator, and a construction worker moves the materials into the building.
At present, a construction worker generally walks onto a support table which is temporarily built and then manually transports construction materials into a building, but the construction materials transported to the support table which is temporarily built are more and heavier, so that the construction worker may fall down due to inertia when transporting the construction materials into the building, and the construction worker stands at the edge of a floor, so that safety accidents are easy to happen.
Aiming at the existing problems, a device capable of avoiding falling down of construction workers and safety accidents is developed.
Disclosure of Invention
The invention aims to overcome the defects that construction workers can fall down due to inertia when carrying construction materials into a building and are easy to cause safety accidents because the construction workers stand at the edge of the floor.
The technical scheme is as follows: a mobile hoisting device for buildings comprises: the lower side of the mounting plate is bolted with at least four universal wheels; the motor and the support column are bolted to the upper side of the mounting plate; the winding wheel is fixedly sleeved on an output shaft of the motor; the supporting rod and the first guide rod are fixedly connected to the supporting column, and the end part of the first guide rod is fixedly connected with the supporting rod; the sliding block is sleeved on the first guide rod in a sliding mode; the first elastic piece is wound between the sliding block and the supporting column; and the clamping component is arranged on the supporting rod and is used for hooking the building material.
Further, the clamping assembly comprises: the clamping sleeve and the hollow pipe are fixedly connected to the lower side of the sliding block, the two sides of the supporting rod are fixedly connected with special-shaped plates, the clamping sleeve is located between the special-shaped plates on the two sides, and the two sides of the clamping sleeve are slidably connected with push rods in a penetrating mode; the clamping plate is fixedly connected to one end of the push rod; the second elastic piece is sleeved on the push rod, one end of the second elastic piece is connected with the clamping plate, and the other end of the second elastic piece is connected with the clamping sleeve; the first contact wheel is rotatably arranged at the other end of the push rod and used for reducing friction force, and the first contact wheel is in contact with the special-shaped plate; the second contact wheel is rotatably arranged at the lower side of the jacket; the fixing ring and the limiting ring are fixedly sleeved on the outer side of the hollow pipe; the sliding sleeve is sleeved on the hollow pipe in a sliding mode and is positioned between the fixing ring and the limiting ring; the third elastic piece is wound between the fixed ring and the sliding sleeve; the wedge block is fixedly connected to the sliding sleeve; the contact ring is fixedly connected to the sliding sleeve; the pull rope is wound on the reel and penetrates through the support column, the jacket, the hollow pipe and the contact ring; and the lifting hook is fixedly connected to the end part of the pull rope.
Further, still including anti-skidding subassembly, anti-skidding subassembly is including: the clamping rod is connected to the sliding block in a penetrating mode in a sliding mode, a clamping groove is formed in one side, close to the sliding block, of the supporting rod, and the clamping rod is inserted into the clamping groove; the fourth elastic piece is fixedly connected between the clamping rod and the inner wall of the sliding block; the pull rod is fixedly connected to the clamping rod; the first connecting rod is rotatably connected to the sliding block; the second connecting rod is rotatably connected to the second connecting rod, a second sliding groove is formed in the second connecting rod, a first sliding groove is formed in the sliding block, and the pull rod penetrates through the first sliding groove and the second sliding groove; the contact rod is fixedly connected to the second connecting rod; the moving rod is fixedly connected to the sliding sleeve and used for pushing the contact rod, and the moving rod is in contact with the contact rod.
Further, still including firm subassembly, firm subassembly includes: the support sleeve is fixedly connected to one side, far away from the motor, of the mounting plate; the screw rod is rotatably connected in the supporting sleeve in a penetrating manner; the rotating handle is fixedly connected to the end part of the screw rod; the second guide rod is bolted on one side, close to the universal wheel, of the mounting plate; the nut is movably sleeved on the screw rod; the guide sleeve is sleeved on the second guide rod in a sliding mode and is fixedly connected with the nut; and the friction plate is fixedly connected to the nut.
Further, the first elastic piece, the second elastic piece, the third elastic piece and the fourth elastic piece are all springs.
Compared with the prior art, the invention has the following advantages:
1. can drive building material through motor anticlockwise rotation and remove to the direction of support column, carry building material to the building in, so can replace artifical transport, and construction worker stands and operates in the building, can avoid construction worker to fall down like this to can avoid taking place the incident.
2. The sliding block can be fixed through the anti-slip component, so that the sliding block cannot move when the building material moves under the action of external force, and the pull rope cannot be clamped by the clamping plate in advance.
3. The device can be prevented from shifting by the stabilizing assembly.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is an enlarged schematic view of part a of the present invention.
FIG. 4 is a schematic view of a first partial body structure according to the present invention.
Fig. 5 is an enlarged schematic view of part B of the present invention.
FIG. 6 is a cross-sectional view of a first partial body structure of the present invention.
FIG. 7 is a cross-sectional view of a second partial body structure of the present invention.
Fig. 8 is an enlarged schematic view of part C of the present invention.
Reference numerals: 1: mounting plate, 2: universal wheel, 3: motor, 301: reel, 4: support column, 5: support rod, 6: first guide bar, 7: a slide block, 8: first elastic member, 9: clamping assembly, 901: jacket, 902: hollow tube, 903: shaped plate, 904: push rod, 905: splint, 906: second elastic member, 907: first contact wheel, 908: second contact wheel, 909: fixing ring, 910: stop collar, 911: a sliding sleeve, 912: third elastic member, 913: wedge block, 914: contact ring, 915: a pull cord, 916: hook, 10: anti-skid component, 1001: card slot, 1002: first runner, 1003: jamming rod, 1004: fourth elastic member, 1005: pull rod, 1006: first link, 1007: second link, 1008: second runner, 1009: contact lever, 1010: travel bar, 11: stabilizing assembly, 1101: support sleeve, 1102: lead screw, 1103: stem, 1104: second guide bar, 1105: nut, 1106: guide sleeve, 1107: a friction plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example 1
A movable hoisting device for buildings is disclosed, as shown in figures 1-6, and comprises a mounting plate 1, universal wheels 2, a motor 3, a reel 301, a support column 4, a support rod 5, a first guide rod 6, a slide block 7, a first elastic part 8 and a clamping assembly 9, wherein two universal wheels 2 are respectively mounted on the front side and the rear side of the bottom of the mounting plate 1 through bolts, the motor 3 and the support column 4 are mounted on the right side of the top of the mounting plate 1 through bolts, the motor 3 is positioned on the left side of the support column 4, the reel 301 is connected to an output shaft of the motor 3 through a key, the support rod 5 and the first guide rod 6 are mounted on the upper portion of the right side of the support column 4, the support rod 5 is positioned above the first guide rod 6, the right end of the first guide rod 6 is connected with the support rod 5 through bolts, the slide block 7 is slidably arranged on the first, the support rod 5 is provided with a clamping assembly 9.
The clamping assembly 9 comprises a jacket 901, a hollow pipe 902, a special-shaped plate 903, a push rod 904, a clamping plate 905, a second elastic part 906, a first contact wheel 907, a second contact wheel 908, a fixing ring 909, a limiting ring 910, a sliding sleeve 911, a third elastic part 912, a wedge block 913, a contact ring 914, a pulling rope 915 and a lifting hook 916, wherein the bottom of the sliding block 7 is connected with the jacket 901 and the hollow pipe 902, the jacket 901 is positioned at the left side of the hollow pipe 902, the front side of the support rod 5 is connected with the special-shaped plate 903 through a connecting frame, the rear side of the support rod 5 is also connected with the special-shaped plate 903 through the connecting frame, the front side and the rear side of the jacket 901 are both provided with sliding holes, the push rod 904 is arranged in the sliding holes, the inner end of the push rod 904 is connected with the clamping plate 905, the second elastic part 906 is connected between the clamping plate and the inner wall of the jacket 901, the second, the bottom of the jacket 901 is rotatably provided with a second contact wheel 908, the middle of the hollow tube 902 is connected with a fixed ring 909, the lower part of the hollow tube 902 is connected with a limit ring 910, the hollow tube 902 is slidably provided with a sliding sleeve 911, the sliding sleeve 911 is positioned between the fixed ring 909 and the limit ring 910, a third elastic part 912 is connected between the fixed ring 909 and the sliding sleeve 911, the third elastic part 912 is sleeved on the hollow tube 902, the left side of the sliding sleeve 911 is connected with a wedge 913 through a connecting rod, the bottom of the sliding sleeve 911 is connected with a contact ring 914, a pull rope 915 is wound on the reel 301, the pull rope 915 penetrates through the support column 4, the jacket 901, the.
Construction worker removes this equipment to the floor edge through universal wheel 2, then put the heavy object on mounting panel 1, improve equipment's weight, and then can improve stability, construction worker hangs building material again on clamping component 9, then starter motor 3 clockwise rotation, motor 3 drives reel 301 clockwise rotation, reel 301 drive clamping component 9 work, clamping component 9 drives building material and removes to the direction of support column 4, first elastic component 8 is compressed, when building material is close support column 4, construction worker closes motor 3, then unload the building material on the clamping component 9, so can replace artifical transport, and construction worker stands in the building operation, so can avoid construction worker to fall down, thereby can avoid taking place the incident. After all the parts are unloaded, the construction worker starts the motor 3 to rotate anticlockwise, the motor 3 drives the reel 301 to rotate anticlockwise, the clamping component 9 resets under the action of the first elastic piece 8, and when the clamping component 9 moves to the initial position, the construction worker turns off the motor 3.
The construction worker hangs the construction material on the hook 916, then the motor 3 is started to rotate clockwise, the motor 3 drives the reel 301 to rotate clockwise, the reel 301 winds the pulling rope 915, the pulling rope 915 drives the hook 916 to move upwards, thereby driving the construction material to move upwards, when the hook 916 moves upwards and touches the contact ring 914, the hook 916 pushes the contact ring 914 to move upwards, the contact ring 914 drives the sliding sleeve 911 to move upwards, thereby driving the wedge 913 to move upwards, the third elastic member 912 is compressed, when the wedge 913 moves upwards and touches the second contact wheel 908, the wedge 913 pushes the second contact wheel 908 to move leftwards, thereby driving the jacket 901 to move leftwards, the first contact wheel 907 moves leftwards, the first contact wheel 907 rolls on the special-shaped plate 903, so that the first contact wheel 907 moves inwards, the first contact wheel drives the push rod 904 to move inwards, and the clamping plate 905 moves inwards, the second elastic member 906 is stretched, when the clamping plate 905 moves inwards to clamp the pulling rope 915, the pulling rope 915 pulls the clamping plate 905 to move leftwards, so that the sliding block 7 is driven to move leftwards, the first elastic member 8 is compressed, the sliding block 7 moves leftwards and also drives the lifting hook 916 to move leftwards, so that the building material is driven to move leftwards, so that the building material moves towards the direction of the supporting column 4, when the first contact wheel 907 rolls to the bending part of the special-shaped plate 903, under the action of the second elastic member 906, the clamping plate 905 moves outwards to release the pulling rope 915, the building worker turns off the motor 3 again, then the building material on the lifting hook 916 is taken down, after taking down, the building worker starts the motor 3 to rotate anticlockwise, the motor 3 drives the reel 301 to rotate anticlockwise, the reel 301 releases the pulling rope 915, under the action of the first elastic member 8, the sliding block 7 moves rightwards, the lifting hook 916 moves rightwards along with, the sleeve 911 moves downward and the hook 916 moves downward.
Example 2
On the basis of the embodiment 1, as shown in fig. 7-8, the anti-skid device 10 is further included, the anti-skid device 10 includes a fastening rod 1003, a fourth elastic element 1004, a pulling rod 1005, the sliding mechanism comprises a first connecting rod 1006, a second connecting rod 1007, a contact rod 1009 and a movable rod 1010, wherein a clamping groove 1001 is formed in the right side of the bottom of a supporting rod 5, a first sliding groove 1002 is formed in the front side of a sliding block 7, a guide hole is formed in the top of the sliding block 7, the clamping rod 1003 is arranged in the guide hole in a sliding mode, the clamping rod 1003 is inserted into the clamping groove 1001, a fourth elastic part 1004 is connected between the clamping rod 1003 and the inner wall of the sliding block 7, the first connecting rod 1006 is connected to the front side of the sliding block 7 in a rotating mode, the second connecting rod 1007 is connected to the first connecting rod 1006 in a rotating mode, the second sliding groove 1008 is formed in the left portion of the second connecting rod 1007, the pull rod 1005 penetrates through the first sliding groove 1002 and the second sliding groove 1008, the contact rod 1009 is connected to the right portion of.
The fixing device comprises a fixing component 11, the fixing component 11 comprises a supporting sleeve 1101, a screw 1102, a rotating handle 1103, a second guide rod 1104, a nut 1105, a guide sleeve 1106 and a friction plate 1107, the supporting sleeve 1101 is installed on the left side of the top of the mounting plate 1 through a bolt, the screw 1102 is rotatably connected in the supporting sleeve 1101, the rotating handle 1103 in an L shape is connected to the upper portion of the screw 1102, the nut 1105 is arranged on the screw 1102, the friction plate 1107 is connected to the left side of the nut 1105 through an L-shaped rod, the second guide rod 1104 is installed in the middle of the left side of the bottom of the mounting plate 1 through a bolt, the guide sleeve 1106 is slidably arranged on the second guide rod 1104, and the.
When the sliding sleeve 911 moves upwards, the sliding sleeve 911 drives the moving rod 1010 to move upwards, the moving rod 1010 pushes the second connecting rod 1007 to rotate anticlockwise, so that the pull rod 1005 is driven to move downwards, the clamping rod 1003 moves downwards to move out of the clamping groove 1001, the sliding block 7 is loosened, the fourth elastic part 1004 is compressed, the moving rod 1010 pushes the second connecting rod 1007 to rotate anticlockwise firstly, the wedge block 913 can touch the second contact wheel 908 subsequently, so that the sliding block 7 cannot be influenced to move leftwards, when the sliding sleeve 911 moves downwards, the sliding sleeve 911 drives the moving rod 1010 to move downwards, under the action of the fourth elastic part 1004, the clamping rod 1003 moves upwards to be clamped into the clamping groove 1001, the sliding block 7 is fixed, when the building material moves due to the action of external force, the sliding block 7 cannot move, and the clamping plate 905 cannot clamp the pull rope in advance.
The construction worker moves the equipment to the floor edge through the universal wheel 2, then rotates the rotating handle 1103 clockwise, and the rotating handle 1103 drives the lead screw 1102 to rotate clockwise, thereby driving the nut 1105 to move downwards, and the friction plate 1107 moves downwards along with the lead screw, and when the friction plate 1107 moves downwards and contacts with the ground closely, the construction worker stops rotating the rotating handle 1103, and the friction plate 1107 and the ground contact closely can increase friction force, preventing the equipment from shifting. When the device needs to be moved, a construction worker rotates the rotating handle 1103 anticlockwise, the rotating handle 1103 drives the screw 1102 to rotate anticlockwise, so that the nut 1105 is driven to move upwards, the friction plate 1107 moves upwards along with the screw, and the friction plate 1107 is not in contact with the ground.
The technical principle of the embodiment of the present invention is described above in conjunction with the specific embodiments. The description is only intended to explain the principles of embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, and these embodiments will fall within the scope of the present invention.
Claims (4)
1. The utility model provides a removal lifting device for building which characterized in that, including:
the lower side of the mounting plate is bolted with at least four universal wheels;
the motor and the support column are bolted to the upper side of the mounting plate;
the winding wheel is fixedly sleeved on an output shaft of the motor;
the supporting rod and the first guide rod are fixedly connected to the supporting column, and the end part of the first guide rod is fixedly connected with the supporting rod;
the sliding block is sleeved on the first guide rod in a sliding mode;
the first elastic piece is wound between the sliding block and the supporting column;
the clamping component is arranged on the supporting rod and is used for hooking the building material;
the clamping assembly comprises:
the clamping sleeve and the hollow pipe are fixedly connected to the lower side of the sliding block, the two sides of the supporting rod are fixedly connected with special-shaped plates, the clamping sleeve is located between the special-shaped plates on the two sides, and the two sides of the clamping sleeve are slidably connected with push rods in a penetrating mode;
the clamping plate is fixedly connected to one end of the push rod;
the second elastic piece is sleeved on the push rod, one end of the second elastic piece is connected with the clamping plate, and the other end of the second elastic piece is connected with the clamping sleeve;
the first contact wheel is rotatably arranged at the other end of the push rod and used for reducing friction force, and the first contact wheel is in contact with the special-shaped plate;
the second contact wheel is rotatably arranged at the lower side of the jacket;
the fixing ring and the limiting ring are fixedly sleeved on the outer side of the hollow pipe;
the sliding sleeve is sleeved on the hollow pipe in a sliding mode and is positioned between the fixing ring and the limiting ring;
the third elastic piece is wound between the fixed ring and the sliding sleeve;
the wedge block is fixedly connected to the sliding sleeve;
the contact ring is fixedly connected to the sliding sleeve;
the pull rope is wound on the reel and penetrates through the support column, the jacket, the hollow pipe and the contact ring;
and the lifting hook is fixedly connected to the end part of the pull rope.
2. The mobile hoisting device for buildings according to claim 1, further comprising an anti-slip component, wherein the anti-slip component comprises:
the clamping rod is connected to the sliding block in a penetrating mode in a sliding mode, a clamping groove is formed in one side, close to the sliding block, of the supporting rod, and the clamping rod is inserted into the clamping groove;
the fourth elastic piece is fixedly connected between the clamping rod and the inner wall of the sliding block;
the pull rod is fixedly connected to the clamping rod;
the first connecting rod is rotatably connected to the sliding block;
the second connecting rod is rotatably connected to the second connecting rod, a second sliding groove is formed in the second connecting rod, a first sliding groove is formed in the sliding block, and the pull rod penetrates through the first sliding groove and the second sliding groove;
the contact rod is fixedly connected to the second connecting rod;
the moving rod is fixedly connected to the sliding sleeve and used for pushing the contact rod, and the moving rod is in contact with the contact rod.
3. The mobile hoisting device for buildings according to claim 2, further comprising a stabilizing member, wherein the stabilizing member comprises:
the support sleeve is fixedly connected to one side, far away from the motor, of the mounting plate;
the screw rod is rotatably connected in the supporting sleeve in a penetrating manner;
the rotating handle is fixedly connected to the end part of the screw rod;
the second guide rod is bolted on one side, close to the universal wheel, of the mounting plate;
the nut is movably sleeved on the screw rod;
the guide sleeve is sleeved on the second guide rod in a sliding mode and is fixedly connected with the nut;
and the friction plate is fixedly connected to the nut.
4. A mobile lifting device for construction as claimed in claim 3, wherein the first, second, third and fourth resilient members are springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010183955.0A CN111186776B (en) | 2020-03-16 | 2020-03-16 | Mobile hoisting equipment for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010183955.0A CN111186776B (en) | 2020-03-16 | 2020-03-16 | Mobile hoisting equipment for building |
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| Publication Number | Publication Date |
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| CN111186776A CN111186776A (en) | 2020-05-22 |
| CN111186776B true CN111186776B (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010183955.0A Active CN111186776B (en) | 2020-03-16 | 2020-03-16 | Mobile hoisting equipment for building |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015106912A1 (en) * | 2015-05-04 | 2016-11-10 | Carl Stahl Kromer Gmbh | Spring tension with a compression spring |
| CN206244301U (en) * | 2016-12-12 | 2017-06-13 | 马艳 | A kind of architectural engineering tower crane anti-sway control device |
| CN107892237A (en) * | 2017-12-29 | 2018-04-10 | 无锡市内河装卸机械有限公司 | A kind of rotation crane arm of fixed pivoting support formula crane |
| CN107934798A (en) * | 2017-12-19 | 2018-04-20 | 中国电建市政建设集团有限公司 | A kind of combined material elevator |
| CN208071185U (en) * | 2018-03-30 | 2018-11-09 | 黄河科技学院 | A kind of compact simplified mobilecrane |
-
2020
- 2020-03-16 CN CN202010183955.0A patent/CN111186776B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015106912A1 (en) * | 2015-05-04 | 2016-11-10 | Carl Stahl Kromer Gmbh | Spring tension with a compression spring |
| CN206244301U (en) * | 2016-12-12 | 2017-06-13 | 马艳 | A kind of architectural engineering tower crane anti-sway control device |
| CN107934798A (en) * | 2017-12-19 | 2018-04-20 | 中国电建市政建设集团有限公司 | A kind of combined material elevator |
| CN107892237A (en) * | 2017-12-29 | 2018-04-10 | 无锡市内河装卸机械有限公司 | A kind of rotation crane arm of fixed pivoting support formula crane |
| CN208071185U (en) * | 2018-03-30 | 2018-11-09 | 黄河科技学院 | A kind of compact simplified mobilecrane |
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| CN111186776A (en) | 2020-05-22 |
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Effective date of registration: 20210506 Address after: 132000 No.16 Zunyi East Road, Longtan District, Jilin City, Jilin Province Applicant after: Jilin North Construction Co.,Ltd. Address before: 362000 Chidian Chifeng Road 3-1902, Singapore City, Jinjiang City, Quanzhou City, Fujian Province Applicant before: Quanzhou Yuantong Technology Service Co.,Ltd. |
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