CN112392238A - Auxiliary adjusting device for mounting prefabricated stairway - Google Patents
Auxiliary adjusting device for mounting prefabricated stairway Download PDFInfo
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- CN112392238A CN112392238A CN202011335864.0A CN202011335864A CN112392238A CN 112392238 A CN112392238 A CN 112392238A CN 202011335864 A CN202011335864 A CN 202011335864A CN 112392238 A CN112392238 A CN 112392238A
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- angle adjusting
- angle
- hoisting
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/26—Implements for finishing work on buildings for mounting staircases, e.g. tools for marking steps
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Abstract
The invention discloses an auxiliary adjusting device for mounting an assembled prefabricated staircase, which relates to the technical field of building construction and solves the problems that the conventional prefabricated staircase is generally hoisted by a steel wire rope in the hoisting process, certain potential safety hazard exists during hoisting, the hoisting stability is poor, the accuracy of an inclination angle is difficult to ensure during the inclination adjustment of the staircase, and the mounting operation is inconvenient; the front and the back of the lower part of the hoisting support frame are hinged with a group of angle adjusting support rods; a group of angle adjusting driving screw rods are rotatably connected to the front and the back of the interior of the hoisting support frame; the equal sliding connection in the left and right sides of angle modulation bracing piece has a set of hoist and mount sliding block. The stair lifting device is higher in lifting safety, can be used for finely adjusting the mounting angle of the stair, can accurately control the angle of the stair, ensures the uniform angles of two sides of the stair, provides good conditions for stair construction, and is simple to use and convenient to operate.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an auxiliary adjusting device for mounting an assembled prefabricated staircase.
Background
The prefabricated staircase is an important component of the prefabricated staircase, and when the prefabricated staircase is installed, the prefabricated staircase needs to be hoisted in place firstly and then fixed and grouted.
For example, application No.: CN201310353010.9 prefabricated suspension wood stair belongs to housing construction technical field. The stair comprises stair beams, a rest platform and stair sloping plates, and is also provided with embedded parts, vertical angle steel and horizontal angle steel, wherein the embedded parts are embedded and fixed on the side surfaces of the stair beams at the positions where the stairs are arranged, the vertical angle steel is arranged corresponding to the rest platform, one end of the vertical angle steel is connected with the embedded parts through welding, the other end of the vertical angle steel is connected with the horizontal angle steel through welding, and the rest platform is placed on the horizontal angle steel and is fixedly connected with the horizontal angle steel through bolts; and horizontal angle steel is arranged at the position corresponding to the stair beam, the horizontal angle steel is connected with the embedded part through welding, and the stair beam is connected with the horizontal angle steel through a bolt. The inclined plate of the stair is fixedly connected with the horizontal angle steel at the stair beam and the rest platform through bolts. The invention has light weight and convenient construction, and the stair is separated from the integral structure of the house, thereby avoiding the mutual influence of the stair and the integral structure in the earthquake. The wooden stair is comfortable to walk and has good application prospect in buildings with structural forms such as frames.
Based on the above, the existing prefabricated staircase is generally hoisted by using the steel wire rope in the hoisting process, the prefabricated staircase is horizontally placed during hoisting, the staircase needs to be obliquely placed during installation, the steel wire rope is in an oblique state during hoisting, certain potential safety hazards exist, the hoisting stability is poor, meanwhile, when the staircase is obliquely adjusted, the accuracy of the inclination angle is difficult to ensure, and the installation operation is inconvenient; therefore, the existing requirements are not met, and an auxiliary adjusting device for mounting the prefabricated staircase is provided.
Disclosure of Invention
The invention aims to provide an auxiliary adjusting device for mounting an assembled prefabricated staircase, and the auxiliary adjusting device is used for solving the problems that the conventional prefabricated staircase provided in the background art is generally hoisted by a steel wire rope in the hoisting process, the prefabricated staircase is horizontally placed in the hoisting process, the staircase needs to be obliquely placed in the mounting process, the steel wire rope is in an oblique state in the hoisting process, certain potential safety hazards exist, the hoisting stability is poor, and meanwhile, the accuracy of the inclination angle is difficult to ensure when the staircase is obliquely adjusted, and the mounting operation is inconvenient.
In order to achieve the purpose, the invention provides the following technical scheme: an auxiliary adjusting device for mounting an assembled prefabricated staircase comprises a hoisting support frame; the front and the back of the lower part of the hoisting support frame are hinged with a group of angle adjusting support rods; a group of angle adjusting driving screw rods are rotatably connected to the front and the back of the interior of the hoisting support frame; a group of angle adjusting chains are arranged on the right side of the front group of angle adjusting driving screw rods; the left side and the right side of the inside of the angle adjusting support rod are rotatably connected with a group of automatic adjusting chain wheels; the two groups of automatic adjusting chain wheels on the same side are in transmission connection through a transmission chain; the equal sliding connection in the left and right sides of angle modulation bracing piece has a set of hoist and mount sliding block.
Preferably, the hoisting support frame further comprises a hoisting steel wire rope and a hoisting ring, a group of hoisting steel wire ropes is fixedly connected to four corners of the top of the hoisting support frame, the hoisting steel wire ropes are the same in length, and the top of each hoisting steel wire rope is fixedly connected with the corresponding hoisting ring.
Preferably, the angle adjustment driving screw further comprises a co-acting chain wheel, the right end face of the angle adjustment driving screw is coaxially and fixedly connected with a group of co-acting chain wheels, and the two groups of co-acting chain wheels are connected through a transmission chain to jointly form a chain transmission mechanism.
Preferably, the angle adjusting drive screw rod further comprises an operation chain wheel, the right end face of the front group of angle adjusting drive screw rod is coaxially and fixedly connected with a group of angle adjusting drive screw rods, and the angle adjusting chain is wound on the operation chain wheel.
Preferably, the angle adjusting drive screw further comprises an angle adjusting slide block, the left side of the angle adjusting drive screw is in threaded transmission connection with a group of angle adjusting slide blocks, the angle adjusting slide blocks are in sliding connection with the hoisting support frame, and the angle adjusting drive screw and the angle adjusting slide blocks jointly form a screw nut transmission pair.
Preferably, the angle adjusting drive screw further comprises an angle connecting rod, the lower portion of the angle adjusting slider is hinged with a group of angle connecting rods, the other end of each angle connecting rod is hinged with the top of the right side of the angle adjusting supporting rod, and the angle adjusting supporting rod, the angle connecting rod, the angle adjusting slider and the hoisting supporting frame form a crank slider transmission mechanism together.
Preferably, the angle modulation bracing piece is still including the automatically regulated sliding tray, and a set of automatically regulated sliding tray has all been seted up to the terminal surface around the angle modulation bracing piece, and hoist and mount sliding block is U type structure still including leading wheel, stair couple, and the hoist and mount sliding block all rotates in the riser inboard of hoist and mount sliding block and is connected with two sets of leading wheels, and the leading wheel rolls in the automatically regulated sliding tray, a set of stair couple of bottom fixedly connected with of hoist and mount sliding block.
Preferably, it is two sets of a set of automatically regulated chain is installed jointly in the outside of automatically regulated sprocket, and two sets of automatically regulated sprockets are through constituting chain drive mechanism with the automatically regulated chain, and two sets of hoist and mount sliding blocks are the symmetric distribution, left a set of hoist and mount sliding block and automatically regulated chain upper portion fixed connection, a set of hoist and mount sliding block and automatically regulated chain lower part fixed connection on right side.
Compared with the prior art, the invention has the beneficial effects that:
when the lifting device is used, the lifting device is connected with a lifting machine through the lifting ring, the lifting support frame is ensured to be in a horizontal state during lifting through four groups of lifting steel wire ropes with the same length, and the prefabricated staircase is installed and lifted through the staircase hooks, so that the lifting is ensured to be stable;
when the lifting slide block and the lifting ring of the stair are not in the same vertical direction during lifting, the stair applies a downward pulling force F1 to the lifting slide block, the pulling force F1 can be decomposed into a component force F2 along the chain direction and a downward component force F3 perpendicular to the chain, and the component forces F2 on the left side and the right side along the chain direction pull a transmission chain transmission mechanism formed by an automatic adjusting chain wheel and an automatic adjusting chain to drive two groups of lifting slide blocks to synchronously and reversely slide, so that the position of the lifting slide block and the lifting ring of the stair are in the same vertical direction, a good lifting effect is ensured, and the safety is higher;
when the stair climbing device is used and the installation angle of the stair needs to be adjusted during installation, the angle adjusting chain is operated, the angle adjusting chain drives the angle adjusting driving screw rod to rotate through the operating chain wheel, the angle adjusting driving screw rod drives the two groups of angle adjusting driving screw rods to simultaneously rotate through the chain transmission mechanism which is formed by the two groups of same-acting chain wheels which are connected through the transmission chain, the angle adjusting driving screw rod drives the angle adjusting slide block to slide left and right through the screw rod nut transmission pair which is formed by the angle adjusting driving screw rod and the angle adjusting slide block, the angle adjusting slide block drives the angle adjusting support rod to swing through the crank slide block transmission mechanism which is formed by the angle adjusting support rod, the angle connecting rod, the angle adjusting slide block and the hoisting support frame together, the installation angle of the angle adjusting support rod is adjusted, and the hoisting angle of the stair is adjusted through the, the angle of control stair that adjustment easy operation, hoist and mount are stable, and the angle of stair that can be accurate guarantees that stair both sides angle is even, provides good condition for the stair construction.
The automatic adjusting device can realize the automatic adjustment of the hoisting sliding block, can ensure that the hoisting belt can be kept in a vertical state, can ensure good hoisting stability, has higher hoisting safety, can finely adjust the installation angle of the stair, can accurately control the angle of the stair, ensures that the angles of two sides of the stair are uniform, provides good conditions for stair construction, and is simple to use and convenient to operate.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic view of the internal axial side structure of the present invention;
FIG. 3 is a schematic side view of the drive shaft of the angle adjustment support rod of the present invention;
FIG. 4 is a schematic side view of the angle adjustment drive screw shaft of the present invention;
FIG. 5 is a schematic side view of the angle adjustment driving screw of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is a schematic side view of the angle-adjustable support bar of the present invention;
FIG. 8 is a schematic side view of the self-adjusting chain of the present invention;
FIG. 9 is a schematic isometric sectional view of the present invention;
FIG. 10 is a schematic view of force analysis according to the present invention;
in the figure: 1. hoisting the support frame; 101. hoisting a steel wire rope; 102. a hoisting ring; 2. an angle adjusting chain; 3. the angle adjustment drives the lead screw; 301. an angle adjusting slider; 302. a synchronous sprocket; 303. operating the chain wheel; 304. an angle connecting rod; 4. an angle adjusting support bar; 401. automatically adjusting the sliding groove; 5. hoisting the sliding block; 501. a guide wheel; 502. a stair hook; 6. automatically adjusting the chain wheel; 7. the chain is automatically adjusted.
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.
Referring to fig. 1 to 10, an embodiment of the present invention includes: an auxiliary adjusting device for mounting an assembled prefabricated staircase comprises a hoisting support frame 1; the front and the back of the lower part of the hoisting support frame 1 are hinged with a group of angle adjusting support rods 4; a group of angle adjusting driving screw rods 3 are rotatably connected to the front and the back of the interior of the hoisting support frame 1; a group of angle adjusting chains 2 are arranged on the right side of the front group of angle adjusting driving screw rods 3; the left side and the right side inside the angle adjusting support rod 4 are both rotatably connected with a group of automatic adjusting chain wheels 6; the two groups of automatic adjusting chain wheels 6 on the same side are in transmission connection through a transmission chain; the left and right sides of angle modulation bracing piece 4 all sliding connection has a set of hoist and mount sliding block 5.
Further, the hoisting support frame 1 further comprises hoisting steel wire ropes 101 and hoisting rings 102, a group of hoisting steel wire ropes 101 is fixedly connected to four corners of the top of the hoisting support frame 1, the hoisting steel wire ropes 101 are the same in length, the top of each hoisting steel wire rope 101 is fixedly connected with one group of hoisting rings 102, in use, each hoisting ring 102 is connected with a hoisting machine, and the hoisting support frame 1 is guaranteed to be in a horizontal state during hoisting through the four groups of hoisting steel wire ropes 101 with the same length.
Further, angle modulation drive lead screw 3 is still including moving sprocket 302 with, and the coaxial fixedly connected with of right-hand member face of angle modulation drive lead screw 3 is a set of moving sprocket 302 with, connects through the drive chain transmission between two sets of moving sprocket 302 with and constitutes chain drive mechanism jointly, and in use, when a set of angle modulation drive lead screw 3 is rotatory, angle modulation drive lead screw 3 drives two sets of angle modulation drive lead screw 3 and rotates simultaneously through connecting the chain drive mechanism who constitutes jointly through the drive chain transmission between two sets of moving sprocket 302 with.
Further, angle modulation drive lead screw 3 is still including operation sprocket 303, and the coaxial fixedly connected with of right-hand member face of preceding a set of angle modulation drive lead screw 3 is still including operation sprocket 303, and 2 twines on operation sprocket 303 of angle modulation chain, and in use, when operating angle modulation chain 2, angle modulation chain 2 drives angle modulation drive lead screw 3 rotatory through operation sprocket 303.
Further, angle modulation drive lead screw 3 is still including angle adjustment slider 301, angle modulation drive lead screw 3's left side screw thread transmission is connected with a set of angle adjustment slider 301, angle adjustment slider 301 and 1 sliding connection of hoist and mount support frame, angle modulation drive lead screw 3 constitutes screw nut transmission pair with angle adjustment slider 301 jointly, in use, when angle modulation drive lead screw 3 is rotatory, angle modulation drive lead screw 3 drives angle adjustment slider 301 and slides from side to side through the screw nut transmission pair that constitutes jointly by angle modulation drive lead screw 3 and angle adjustment slider 301.
Further, angle modulation drive lead screw 3 is still including angle connecting rod 304, angle adjusting slider 301's lower part hinged joint has a set of angle connecting rod 304, angle connecting rod 304's the other end and the top hinged joint on angle adjusting support rod 4's right side, angle adjusting support rod 4, angle connecting rod 304, angle adjusting slider 301, constitute slider-crank drive between the hoist and mount support frame 1 jointly, in use, when angle adjusting slider 301 horizontal slip, angle adjusting slider 301 drives the swing of angle adjusting support rod 4 through the slider-crank drive mechanism who constitutes jointly between the angle adjusting support rod 4, angle connecting rod 304, angle adjusting slider 301, hoist and mount support frame 1, the installation angle of angle adjusting support rod 4.
Further, angle modulation bracing piece 4 is still including automatically regulated sliding tray 401, a set of automatically regulated sliding tray 401 has all been seted up to angle modulation bracing piece 4's front and back terminal surface, hoist and mount sliding block 5 is still including leading wheel 501, stair couple 502, hoist and mount sliding block 5 is U type structure, hoist and mount sliding block 5's riser inboard all rotates and is connected with two sets of leading wheels 501, leading wheel 501 rolls in automatically regulated sliding tray 401, a set of stair couple 502 of the bottom fixedly connected with of hoist and mount sliding block 5, in use, lead to hoist and mount sliding block 5 through automatically regulated sliding tray 401, install the hoist and mount to prefabricated staircase through stair couple 502.
Further, a set of automatically regulated chain 7 is installed jointly in two sets of automatically regulated sprocket 6's the outside, and two sets of automatically regulated sprocket 6 and automatically regulated chain 7 are through constituting chain drive mechanism, and two sets of hoist and mount sliding blocks 5 are the symmetric distribution, left a set of hoist and mount sliding block 5 and the 7 upper portion fixed connection of automatically regulated chain, a set of hoist and mount sliding block 5 and the 7 lower part fixed connection of automatically regulated chain on right side, and in use has realized the synchronous backsliding of two sets of hoist and mount sliding blocks 5 through automatically regulated chain 7.
The working principle is as follows: when the lifting device is used, the lifting device is connected with a lifting machine through the lifting ring 102, the lifting support frame 1 is ensured to be in a horizontal state during lifting through four groups of lifting steel wire ropes 101 with the same length, and the prefabricated staircase is installed and lifted through the staircase hooks 502; during hoisting, when the position of the hoisting sliding block 5 and the hoisting ring of the stair are in the same vertical direction, the stair applies a downward pulling force F1 to the hoisting sliding block 5, the pulling force F1 can be decomposed into a component F2 in the direction of the automatic adjusting chain 7 and a component F3 perpendicular to the automatic adjusting chain 7, and the component F2 on the left side and the right side in the direction of the automatic adjusting chain 7 pulls the transmission chain transmission mechanism formed by the automatic adjusting chain wheel 6 and the automatic adjusting chain 7 to drive the two groups of hoisting sliding blocks 5 to synchronously and reversely slide, so that the position of the hoisting sliding block 5 and the hoisting ring of the stair are in the same vertical direction, and a good hoisting effect is ensured, as shown in the attached drawing; when the installation angle of the stair is required to be adjusted during installation, the angle adjusting chain 2 is operated, the angle adjusting chain 2 drives the angle adjusting driving screw rod 3 to rotate through the operation chain wheel 303, the angle adjusting driving screw rod 3 drives the two groups of angle adjusting driving screw rods 3 to rotate simultaneously through a chain transmission mechanism which is formed by jointly connecting two groups of same-action chain wheels 302 through transmission chain transmission, the angle adjusting driving screw rod 3 drives the angle adjusting slide block 301 to slide left and right through a screw nut transmission pair which is formed by jointly connecting the angle adjusting driving screw rod 3 and the angle adjusting slide block 301, the angle adjusting slide block 301 drives the angle adjusting support rod 4 to swing through a crank slide block transmission mechanism which is formed by jointly among the angle adjusting support rod 4, the angle connecting rod 304, the angle adjusting slide block 301 and the hoisting support frame 1, and the installation angle of the angle adjusting support, the lifting angle of the stair is adjusted through the swinging of the angle adjusting support rod 4.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides an auxiliary regulating device of prefabricated staircase installation usefulness of assembled which characterized in that: comprises a hoisting support frame (1); the front and the back of the lower part of the hoisting support frame (1) are hinged with a group of angle adjusting support rods (4); a group of angle adjusting driving screw rods (3) are rotatably connected to the front and the back of the interior of the hoisting support frame (1); a group of angle adjusting chains (2) are arranged on the right side of the front group of angle adjusting driving screw rods (3); the left side and the right side of the inside of the angle adjusting support rod (4) are respectively and rotatably connected with a group of automatic adjusting chain wheels (6); the two groups of automatic adjusting chain wheels (6) on the same side are in transmission connection through a transmission chain; the left side and the right side of the angle adjusting supporting rod (4) are connected with a group of hoisting sliding blocks (5) in a sliding mode.
2. The auxiliary adjusting device for the installation of the prefabricated staircase according to the claim 1, wherein: the hoisting support frame (1) further comprises hoisting steel wire ropes (101) and hoisting rings (102), a group of hoisting steel wire ropes (101) are fixedly connected to four corners of the top of the hoisting support frame (1), the hoisting steel wire ropes (101) are identical in length, and the top of each hoisting steel wire rope (101) is fixedly connected with one group of hoisting rings (102) together.
3. The auxiliary adjusting device for the installation of the prefabricated staircase according to the claim 1, wherein: the angle adjusting driving screw rod (3) further comprises a same-moving chain wheel (302), the right end face of the angle adjusting driving screw rod (3) is coaxially and fixedly connected with a group of same-moving chain wheels (302), and the two groups of same-moving chain wheels (302) are connected through a transmission chain to jointly form a chain transmission mechanism.
4. The auxiliary adjusting device for the installation of the prefabricated staircase according to the claim 1, wherein: the angle adjusting driving lead screw (3) further comprises an operating chain wheel (303), the right end face of the front group of angle adjusting driving lead screw (3) is coaxially and fixedly connected with a group of angle adjusting driving lead screw, the operating chain wheel (303) is further arranged, and the angle adjusting chain (2) is wound on the operating chain wheel (303).
5. The auxiliary adjusting device for the installation of the prefabricated staircase according to the claim 1, wherein: the angle adjusting drive screw rod (3) is characterized by further comprising an angle adjusting slide block (301), the left side of the angle adjusting drive screw rod (3) is in threaded transmission connection with a group of angle adjusting slide blocks (301), the angle adjusting slide blocks (301) are in sliding connection with the hoisting support frame (1), and the angle adjusting drive screw rod (3) and the angle adjusting slide blocks (301) jointly form a screw nut transmission pair.
6. The auxiliary adjusting device for the installation of the prefabricated staircase according to the claim 1, wherein: the angle adjusting drive screw rod (3) further comprises an angle connecting rod (304), the lower portion of the angle adjusting sliding block (301) is hinged to the group of angle connecting rods (304), the other end of each angle connecting rod (304) is hinged to the top of the right side of the angle adjusting supporting rod (4), and the angle adjusting supporting rod (4), the angle connecting rods (304), the angle adjusting sliding block (301) and the hoisting supporting frame (1) jointly form a crank sliding block transmission mechanism.
7. The auxiliary adjusting device for the installation of the prefabricated staircase according to the claim 1, wherein: angle modulation bracing piece (4) are still including automatically regulated sliding tray (401), a set of automatically regulated sliding tray (401) has all been seted up to the front and back terminal surface of angle modulation bracing piece (4), hoist and mount sliding block (5) are still including leading wheel (501), stair couple (502), hoist and mount sliding block (5) are U type structure, the riser inboard of hoist and mount sliding block (5) all rotates and is connected with two sets of leading wheels (501), leading wheel (501) roll in automatically regulated sliding tray (401), a set of stair couple (502) of bottom fixedly connected with of hoist and mount sliding block (5).
8. The auxiliary adjusting device for the installation of the prefabricated staircase according to the claim 1, wherein: two sets of a set of automatically regulated chain (7) are installed jointly in the outside of automatically regulated sprocket (6), and two sets of automatically regulated sprocket (6) are through constituting chain drive mechanism with automatically regulated chain (7), and two sets of hoist and mount sliding block (5) are the symmetric distribution, left a set of hoist and mount sliding block (5) and automatically regulated chain (7) upper portion fixed connection, a set of hoist and mount sliding block (5) and automatically regulated chain (7) lower part fixed connection on right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335864.0A CN112392238B (en) | 2020-11-25 | 2020-11-25 | Auxiliary adjusting device for mounting prefabricated stairway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335864.0A CN112392238B (en) | 2020-11-25 | 2020-11-25 | Auxiliary adjusting device for mounting prefabricated stairway |
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| CN112392238A true CN112392238A (en) | 2021-02-23 |
| CN112392238B CN112392238B (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011335864.0A Active CN112392238B (en) | 2020-11-25 | 2020-11-25 | Auxiliary adjusting device for mounting prefabricated stairway |
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| CN203486733U (en) * | 2013-09-13 | 2014-03-19 | 中集集团集装箱控股有限公司 | Lifting appliance for container |
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| CN208617212U (en) * | 2018-06-07 | 2019-03-19 | 苏州精美科光电材料有限公司 | A kind of hoisting fixture of pipe target |
| CN210528236U (en) * | 2019-09-09 | 2020-05-15 | 青岛航天红光车桥制造有限公司 | Bridge assembly sprays paint and uses hoist |
| CN111532964A (en) * | 2020-03-20 | 2020-08-14 | 唐云 | Hoisting mechanism for prefabricated part of prefabricated building and working method thereof |
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2020
- 2020-11-25 CN CN202011335864.0A patent/CN112392238B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007099414A (en) * | 2005-09-30 | 2007-04-19 | Ohbayashi Corp | Sling tool and inclination adjustment method for slung body |
| CN201980900U (en) * | 2011-04-01 | 2011-09-21 | 山西东华机械有限公司 | Hydraulic lifting arm |
| CN203486733U (en) * | 2013-09-13 | 2014-03-19 | 中集集团集装箱控股有限公司 | Lifting appliance for container |
| CN207090781U (en) * | 2017-08-19 | 2018-03-13 | 安徽省中冶重工机械有限公司 | A kind of suspender of adjustable center of gravity |
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| CN112392238B (en) | 2022-07-29 |
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Effective date of registration: 20221221 Address after: 3301, Office Building 3B, Vanke Times Square, No. 85, Longcheng Avenue, Shangjing Community, Longcheng Street, Longgang District, Shenzhen, Guangdong 518000 Patentee after: China Construction Third Engineering Bureau Science and Innovation Industry Development Co.,Ltd. Address before: 457100 unit 3, building 20, phase I, grace Town, Puyang County, Puyang City, Henan Province Patentee before: Guo Fangfang |
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